Runge_Kutta

How about 9 new patent applications this week alone (April 29, 2004)!
http://appft1.uspto.gov/netahtml/PTO/search-bool.html

20040082430
Family of multi-speed transmissions having interconnected planetary gearsets and input clutches

"A family of power transmissions wherein each family member includes
three planetary gearsets each having three members and six selectively
engageable torque-transmitting mechanisms. The planetary gearsets have
members that are continuously interconnected by at least three interconnecting
members. The torque-transmitting mechanisms are selectively engaged in
combinations of two to establish at least seven forward speed ratios and
one reverse speed ratio in the three planetary gearsets."

20040082429
Multi-speed transmission mechanisms with three planetary gearsets and clutch input

"A family of power transmissions wherein each family member includes first,
second, and third planetary gearsets, six torque-transmitting mechanisms,
and one continuous interconnecting member. The interconnecting member
interconnects a member of the first planetary gearset, a member of the
second planetary gearset, and a member of the third planetary gearset. The
torque-transmitting mechanisms being selectively engageable in combinations
of four to establish at least seven forward speed ratios and one reverse speed
ratio within the planetary gearset."

20040082428
Family of six-speed dual-clutch transmissions having a stationary planetary gear member

"The family of transmissions has a plurality of members that can be utilized
in powertrains to provide at least six forward speed ratios and one reverse
speed ratio. The transmission family members include four planetary gear sets
having two input clutches, eight torque transmitting mechanisms, two fixed
interconnections, and one grounded planetary gear member. The invention provides
a low content multi-speed dual clutch transmission mechanism wherein the two
input clutches alternately connect the engine to realize odd and even speed
ratio ranges. The eight torque transmitting mechanisms provide connections
between various gear members, the fixed interconnections, the input clutches,
the output shaft, and the transmission housing, and are operated along with
the input clutches in combinations of three to establish at least six forward
speed ratios and at least one reverse speed ratio."

20040082427
Transmission mechanisms with three gear sets and a stationary gear member

"The family of transmissions has a plurality of members that can be utilized
in powertrains to provide at least seven forward speed ratios and one reverse
speed ratio. The transmission family members include three planetary gear
sets having six torque-transmitting mechanisms and two fixed interconnections.
The powertrain includes an engine and torque converter that is continuously
connected to at least one of the planetary gear members and an output member
that is continuously connected with another one of the planetary gear members.
The six torque-transmitting mechanisms provide interconnections between various
gear members, the fixed interconnections, the input shaft, the output shaft,
and the transmission housing, and are operated in combinations of three to
establish at least seven forward speed ratios and at least one reverse speed ratio."

20040082426
Family of multi-speed planetary transmission mechanisms having three
planetary gearsets, three clutches, and two brakes

"The family of six-speed planetary transmissions incorporates three planetary
gearsets and five torque-transmitting mechanisms, which are engaged in
combinations of two to establish at least six forward speeds and one reverse
speed within the planetary transmission. The five torque-transmitting mechanisms
are comprised of three rotating type torque-transmitting mechanisms (clutches)
and two stationary type torque-transmitting mechanisms (brakes). Each of the
three planetary gearsets has three members with a first member of the first
planetary gearset being continuously interconnected with a first member of
the second planetary gearset. A second member of the first planetary gearset
is continuously interconnected with a first member of the third planetary
gearset. A second member of the second planetary gearset is continuously
interconnected with a second member of the third planetary gearset. The input
shaft and output shafts are continuously connected with selected members of
the planetary gearsets. The five torque-transmitting mechanisms are effective
to provide interconnections between the planetary gearsets as well as between
the planetary gearset members and the transmission housing to establish the
forward and reverse speed ratios."

20040082425
Planetary transmissions with clutched input and a stationary member

"The family of transmissions has a plurality of members that can be utilized
in powertrains to provide at least seven forward speed ratios and one reverse
speed ratio. The transmission family members include three planetary gear sets
having six torque-transmitting mechanisms and two fixed interconnections. Also,
one planetary gear member is continuously connected with the transmission housing.
The powertrain includes an engine and torque converter that is not continuously
connected to one of the planetary gear members and an output member that is
continuously connected with at least one of the planetary gear members. The
six torque-transmitting mechanisms provide interconnections between various
gear members, the fixed interconnections, the input shaft, the output shaft,
and the transmission housing, and are operated in combinations of three to
establish at least seven forward speed ratios and at least one reverse speed ratio."

20040082424
Family of multi-speed transmissions with a stationary planetary member and input clutches

"A family of power transmissions has a plurality of family members each of
which have three planetary gearsets, each having three members, and six
torque transmitting mechanisms. An output shaft is continuously interconnected
with at least one planetary member. An input shaft is selectively interconnected
with respective planetary members through at least two of the torque transmitting
mechanisms. One member of the second planetary gearset and one member of the
third planetary gearset are continuously interconnected, and another member of
the third planetary gearset is continuously interconnected with a transmission
housing. The remaining torque transmitting mechanisms provide selective
interconnections between two planetary members or between a planetary member
and the housing, the input shaft, and the output shaft. The torque transmitting
mechanisms are selectively engaged in combinations of four to establish at least
seven forward speeds and one reverse speed."

20040082423
Multi-speed transmission with three planetary gearsets and input clutches

"A family of power transmissions includes three planetary gearsets, which each
have a member interconnected with one of the other planetary gearsets, and two
of the planetary gearsets have a second member continuously interconnected.
Each family member includes six torque-transmitting mechanisms which are engaged
in combinations of two to establish at least seven forward speed ratios and one
reverse speed ratio within the planetary gear arrangement between the transmission
input shaft and the transmission output shaft."

20040082422
PLANETARY TRANSMISSIONS WITH CLUTCHED INPUT AND TWO BRAKES

"The family of transmissions has a plurality of members that can be utilized in
powertrains to provide at least seven forward speed ratios and one reverse speed
ratio. The transmission family members include three planetary gear sets having
six torque-transmitting mechanisms and three fixed interconnections. The powertrain
includes an engine and torque converter that is not continuously connected to any
of the planetary gear members. In some family members, the output shaft is
continuously connected with at least one member of the first or second planetary
gear set or continuously connected with a member of the third planetary gear set
and selectively connectable with at least one member of the first, second or
third planetary gear set. The six torque-transmitting mechanisms provide
interconnections between various gear members, the fixed interconnections, the
input shaft, the output shaft, and the transmission housing, and are operated
in combinations of three to establish at least seven forward speed ratios and
at least one reverse speed ratio."

Runge_Kutta

By the way, I forgot to say that those are all from General Motors.

It would be an interesting question to investigate how many patents (or
even applications) the various transmission houses have that
apply to 5-, 6-, 7-, and 8-speed automatic transmissions. While
I am not going to attempt this, it is difficult to believe that anyone
is even close to GM on the 6- and 7-speed ATs. I suspect that
their considerable investment here will look like a very wise decision
in a decade or two. I also bet that in a decade, the four-speed ATs
will be museum pieces.

68roadster

I have little idea of the mechanics of all this, but there was some news article recently about GM and Ford collaborating on automatic trans of at least 6 speed I believe?

Runge_Kutta

Yes, that's currently called the X22F. You can search Google or Kartoo
for it. Just type in (without the first quotes) "X22F GM Ford" or
" "6-speed automatic" Ford GM"
http://www.google.com/
http://www.kartoo.com/

Here are a few links. The X22F is a front wheel application. The X13R, X14R, X15R,
and X16R or the rear drive ones that have the potential to make into C6 at some
point. There was a recent mention of the 6L80-E on a Buick showcar putting out
400/400 (HP/Torque).
http://newsletter.csmauto.com/summer-2003/?a=4
http://www.caw199.com/article4.html
http://media.gm.com:8221/division/20...6speed_fwd.pdf


Also
http://www.latimes.com/classified/au...eds-autos-news
http://autonet.ca/AutonetStories/Sto...?storyID=11701
http://www.gm.com/automotive/gmpower...ews/press9.htm



[Modified by Runge_Kutta, 5:20 PM 4/30/2004]

Runge_Kutta

Another day, another patent. Here are this weeks (18MAY04) new GM patents
that I found interesting. The new patents come out on Tuesday and
the new patent applications come out on Thursday.

6,736,752 Family of multi-speed transmissions with three planetary gearsets
6,736,751 Family of multi-speed dual-clutch transmissions having three interconnected
_________ planetary gear members
6,736,750 Family of multi-speed planetary transmission mechanisms having clutch input
6,736,749 Family of multi-speed transmission mechanisms having three planetary gear
_________ sets and six torque-transmitting mechanisms
6,736,108 Fuel and spark compensation for reactivating cylinders in a variable
_________ displacement engine
http://patft.uspto.gov/netahtml/search-bool.html

For a picture, go to ( http://www.uspto.gov/web/patents/pat.../OG/patent.htm )
click on "Browse Granted Patents" and then type in the patent number in the
upper left hand box. You can also click on "Images" on the page that describes
the patent.

======================================== ==============================

United States Patent 6,736,752
Usoro , et al.
May 18, 2004

Family of multi-speed transmissions with three planetary gearsets

Abstract

A family of transmissions is incorporated into powertrains to provide
six forward speed ratios and one reverse speed ratio between an engine
and a final drive mechanism. Each of the family members includes three
planetary gearsets, one of which is an input planetary gearset and the
other two are interconnected ratio planetary gearsets. Each transmission
family member employs three rotating type torque-transmitting mechanisms
(clutches) and two stationary type torque-transmitting mechanisms (brakes)
to provide the six forward speed ratios and one reverse speed ratio. These
torque-transmitting mechanisms are selectively engaged in combinations of
two during the establishment of the speed ratios within the family member.
Two of the rotating torque transmitting mechanisms are selectively connectable
between the faster rotating member of the input planetary gearset and the
two interconnected planetary gearsets and the remaining rotating torque
transmitting mechanism is selectively connectable between the slower
rotating member of the input planetary gearset and at least one member
of the interconnected planetary gearsets.

======================================== ==============================

United States Patent 6,736,751
Usoro , et al.
May 18, 2004

Family of multi-speed dual-clutch transmissions having three interconnected
planetary gear members

Abstract

The family of transmissions has a plurality of members that can be utilized
in powertrains to provide at least six forward speed ratios and one reverse
speed ratio. The transmission family members include four planetary gear
sets, two input clutches, eight torque transmitting mechanisms, and two
fixed interconnections. The invention provides a low content multi-speed
dual clutch transmission mechanism wherein the two input clutches alternately
connect the engine to realize odd and even number speed ratio ranges. The
eight torque transmitting mechanisms provide connections between various
gear members, the fixed interconnections, the input clutches, the output
shaft, and the transmission housing, and are operated in combinations of
three to establish at least six forward speed ratios and at least one
reverse speed ratio. One of the torque transmitting mechanisms may be
eliminated to provide at least five forward speed ratios and at least
one reverse speed ratio.

======================================== ==============================

United States Patent 6,736,750
Lee , et al.
May 18, 2004

Family of multi-speed planetary transmission mechanisms having clutch input

Abstract

A family of power transmissions having first, second, and third planetary
gearsets and six torque-transmitting mechanisms. The first planetary gearset
is continuously interconnected with a member of the second planetary gearset
and a member of the third planetary gearset. The second planetary gearset
is continuously interconnected with a member of the third planetary gearset.
The six torque-transmitting mechanisms are selectively engaged in combinations
of two to establish at least seven forward speed ratios and one reverse speed
ratio within the planetary gearsets.

======================================== ==============================

United States Patent 6,736,749
Bucknor , et al.
May 18, 2004

Family of multi-speed transmission mechanisms having three planetary gear sets
and six torque-transmitting mechanisms

Abstract

The family of transmissions has a plurality of members that can be utilized in
powertrains to provide at least seven forward speed ratios and one reverse
speed ratio. The transmission family members include three planetary gear sets
and six torque transmitting mechanisms. The powertrain includes an engine and
torque converter that is continuously connected to at least one member of the
planetary gear arrangement and an output member that is continuously connected
with another of the planetary gear members. The six torque transmitting mechanisms
provide interconnections between various gear members and with the transmission
housing, the input or output shaft, in some instances, and are operated in
combinations of two to establish at least seven forward speed ratios.

======================================== ==============================

United States Patent 6,736,108
Rayl , et al.
May 18, 2004

Fuel and spark compensation for reactivating cylinders in a variable displacement engine

Abstract

An engine control system in a vehicle including a variable displacement internal
combustion engine, an intake manifold coupled to the variable displacement
internal combustion engine, a controller for controlling the displacement of
the variable displacement internal combustion engine, and where the controller
varies the spark for a reactivating cylinder during the transition from
deactivation to reactivation.

======================================== ==============================

If you're not getting enough of this stuff, try

http://forums.corvetteforum.com/zerothread?id=802824
http://forums.corvetteforum.com/zerothread?id=699595
http://forums.corvetteforum.com/zerothread?id=654760
http://forums.corvetteforum.com/zerothread?id=569757




[Modified by Runge_Kutta, 2:22 PM 5/18/2004]

Runge_Kutta

OK, I know the suspense has been killing you folks ...
Time for this weeks (20MAY04) interesting patent applications
from GM ( http://appft1.uspto.gov/netahtml/PTO/search-bool.html )

======================================== ===============================

20040097384 Thermally stable antifoam agent for use in automatic transmission fluids

Antifoam compositions for automatic transmission fluids contain antifoam agents
comprising perfluoropolyether compounds (PFPE). An automatic transmission fluid
is provided containing the antifoam composition in a lubricating base oil, along
with conventional additives such as antiwear agents. Automobile transmissions are
provided that contain an automatic transmission fluid containing the new antifoam
compositions. In a further embodiment, methods are provided for reducing unwanted
noise in an automobile transmission during operation, comprising lubricating the
transmission with an ATF containing the antifoam compositions of the invention.

======================================== ===============================

20040094364 Lubrication system for high speed planet gears

A lubrication system is provided for a planetary gear train. The system includes
an oil supply that disperses oil to a thrust bearing. The thrust bearing purges
the oil radially outward. A strategically placed molded cavity collects and
channels the oil from the thrust bearing into the planet bearings. Features in
a planet gear carrier and a planet gear face washer can form the oil flow path.
The washer can have a further feature for expelling the oil after the planet
bearings are lubricated. By using the planet gear end face washer, this
arrangement allows for the cavity to be cast rather than machined to thereby
reduce the cost of increasing the flow of oil into the planet bearings.

======================================== ===============================

Yano

BMW has a 6speed auto in its 7 series.

"BMW is the world's first automobile manufacturer to offer six-speed automatic transmission as serial. The broader transmission range, plus the additional gear, make the 7 Series even more efficient and dynamic"

Runge_Kutta

I believe those BMW transmissions are part of the 6-speed automatic
transmission line from ZF. There are at least 4 models: 6hp26, 6hp26A
(all wheel), 6hp32, and 6hp32A (all wheel).
http://www.zf.com

Click on the big automatic transmission. Next,
go to "products for" then "Systems" then
"Product Groups" then "transmission" then "cars"
and finally "automatic transmission."
http://www.zf.com/zf_group/produkte/...w_Prospekt.pdf

WhiteDiamond

While it is interesting that GM has so many patents on these higher number gear transmissions, it is funny that BMW has 6 speed autos on the market and Mercedes Benz has 7 speed autos on the market.

Todd

Runge_Kutta

Here are this weeks new GM patents that I found interesting.
http://patft.uspto.gov/netahtml/search-bool.html


=====================

United States Patent 6,739,166
S.M. Shah
May 25, 2004

Method of forming tubular member with flange

Abstract

A method of forming a tubular member with at least one flange includes the
steps of providing a tubular member, expanding at least one portion of the
tubular member, and positioning the tubular member between open die halves.
The method includes the steps of applying at least nominal internal hydraulic
pressure to the tubular member. The method further includes the steps of
progressively closing the die halves to progressively deform the tubular
member and progressively expel the at least one portion of the tubular
member to define a flange comprised of wall portions of the tubular member
engaging one another. The method includes the steps of increasing the
hydraulic pressure to expand and conform the tubular member. The method
also includes the steps of separating the die halves and removing the
tubular member having a flange from the die.

TECHNICAL FIELD

The present invention relates generally to forming a shaped tubular member
and, more particularly, to a method of forming a tubular member with a
flange of hydroformed metal tubing for assembling automotive structures.

=====================

United States Patent 6,739,294
Liedtke , et al.
May 25, 2004

Manifold for housing high-pressure oil in a camless engine

Abstract

A manifold for housing high-pressure oil on a camless engine includes an
extruded aluminum body having first and second ends. First, second and
third extruded channels are formed in the body and each extends from the
first end to the second end of the body. The manifold has a plurality of
switching valve mounting bores configured to receive a plurality of
switching valves operative to alternately communicate the channels with
intake and exhaust valves of an engine to which the manifold is mounted
to affect movement of the valves.

Runge_Kutta

This week (27MAY04) has NINE patent applications by General Motors on
"DUAL-CLUTCH TRANSMISSIONS." It looks like eight are 6-speeds
and one is a 5-speed.

http://appft1.uspto.gov/netahtml/PTO/search-bool.html

======================================== =======================
United States Patent Application 20040102284
Usoro, Patrick B.; et al.
May 27, 2004

MULTI-SPEED DUAL-CLUTCH TRANSMISSIONS HAVING THREE INTERCONNECTING MEMBERS AND FOUR BRAKES

Abstract

The family of transmissions has a plurality of members that can be utilized
in powertrains to provide at least six forward speed ratios and one reverse
speed ratio. The transmission family members include four planetary gear sets,
two input clutches, eight or nine torque transmitting mechanisms and three
fixed interconnections. The invention provides a low content multi-speed dual
clutch transmission mechanism wherein the two input clutches alternately connect
the engine to realize odd and even number speed ratio ranges. The torque
transmitting mechanisms provide connections between various gear members, the
fixed interconnections, the input clutches, the output shaft, and the
transmission housing, and are operated with the input clutches in combinations
of three to establish at least six forward speed ratios and at least one
reverse speed ratio.

======================================== =======================

United States Patent Application 20040102283
Lee, Chunhao J.; et al.
May 27, 2004

MULTI-SPEED DUAL-CLUTCH PLANETARY TRANSMISSIONS HAVING FOUR FIXED INTERCONNECTING
MEMBERS

Abstract

The family of transmissions has a plurality of members that can be utilized in
powertrains to provide at least six forward speed ratios and one reverse speed
ratio. The transmission family members include four planetary gear sets, two
input clutches, eight or nine torque transmitting mechanisms and four fixed
interconnections. The invention provides a low content multi-speed dual clutch
transmission mechanism wherein the two input clutches alternately connect the
engine to realize odd and even number speed ratio ranges. The torque transmitting
mechanisms provide connections between various gear members, the fixed
interconnections, the input shaft, the output shaft, and the transmission housing,
and are operated in combinations of three to establish at least five forward speed
ratios and at least one reverse speed ratio.

======================================== =======================

United States Patent Application 20040102282
Usoro, Patrick B.; et al.
May 27, 2004

MULTI-SPEED DUAL-CLUTCH PLANETARY TRANSMISSIONS HAVING THREE GEAR MEMBERS
CONTINUOUSLY INTERCONNECTED WITH OUTPUT SHAFT

Abstract

The family of transmissions has a plurality of members that can be utilized in
powertrains to provide at least six forward speed ratios and one reverse speed
ratio. The transmission family members include four planetary gear sets, two
input clutches, eight or nine torque transmitting mechanisms and two fixed
interconnections. The invention provides a low content multi-speed dual clutch
transmission mechanism wherein the two input clutches alternately connect the
engine to realize odd and even number speed ratio ranges. The torque transmitting
mechanisms provide connections between various gear members, the fixed
interconnections, the input shaft, the output shaft, and the transmission housing,
and are operated in combinations of three to establish at least five forward
speed ratios and at least one reverse speed ratio.

======================================== =======================

United States Patent Application 20040102281
Lee, Chunhao J.; et al.
May 27, 2004

MULTI-SPEED DUAL-CLUTCH PLANETARY TRANSMISSIONS HAVING THREE CONTINUOUSLY
INTERCONNECTED GEAR MEMBERS

Abstract

The family of transmissions has a plurality of members that can be utilized in
powertrains to provide at least six forward speed ratios and one reverse speed
ratio. The transmission family members include four planetary gear sets, two
input clutches, eight or nine torque transmitting mechanisms and two fixed
interconnections. The invention provides a low content multi-speed dual clutch
transmission mechanism wherein the two input clutches alternately connect the
engine to realize odd and even speed ratio changes. The nine torque transmitting
mechanisms provide connections between various gear members, the fixed
interconnections, the input clutches, the output shaft, and the transmission
housing, and are operated in combinations of three to establish at least five
forward speed ratios and at least one reverse speed ratio.

======================================== =======================

United States Patent Application 20040102280
Usoro, Patrick B.; et al.
May 27, 2004

MULTI-SPEED DUAL-CLUTCH PLANETARY TRANSMISSION MECHANISMS HAVING FOUR GEAR SETS
AND A STATIONARY MEMBER

Abstract

The family of transmissions has a plurality of members that can be utilized
in powertrains to provide at least six forward speed ratios and one reverse
speed ratio. The transmission family members include four planetary gear sets,
two input clutches, eight or nine torque transmitting mechanisms, three fixed
interconnections, and one grounded planetary gear member. The invention provides
a low content multi-speed dual clutch transmission mechanism wherein the two
input clutches alternately connect the engine to realize odd and even speed
ratio changes. The torque transmitting mechanisms provide connections between
various gear members, the fixed interconnections, the input clutches, the output
shaft, and the transmission housing, and are operated in combinations of three
to establish at least five forward speed ratios and at least one reverse speed
ratio.

======================================== =======================

United States Patent Application 20040102279
Lee, Chunhao J.; et al.
May 27, 2004

MULTI-SPEED DUAL-CLUTCH PLANETARY TRANSMISSION MECHANISMS HAVING THREE INTERCONNECTING MEMBERS

Abstract

The family of transmissions has a plurality of members that can be utilized
in powertrains to provide at least six forward speed ratios and one reverse
speed ratio. The transmission family members include four planetary gear sets,
two or three input clutches, seven, eight or nine torque transmitting mechanisms
and three fixed interconnections. The invention provides a low content multi-speed
dual clutch transmission mechanism wherein the two input clutches alternately
connect the engine to realize odd and even speed ratio changes. The torque
transmitting mechanisms provide connections between various gear members,
the fixed interconnections, the input clutches, the output shaft, and the
transmission housing, and are operated in combinations of at least three to
establish at least five forward speed ratios and at least one reverse speed ratio.

======================================== =======================

United States Patent Application 20040102278
Usoro, Patrick B.; et al.
May 27, 2004

MULTI-SPEED DUAL-CLUTCH PLANETARY TRANSMISSIONS HAVING OUTPUT SHAFT
INTERCONNECTED WITH THREE GEAR MEMBERS

Abstract

The family of transmissions has a plurality of members that can be utilized in
powertrains to provide at least six forward speed ratios and one reverse speed
ratio. The transmission family members include four planetary gear sets, two
input clutches, seven, eight or nine torque transmitting mechanisms and three
fixed interconnections. The invention provides a low content multi-speed dual
clutch transmission mechanism wherein the two input clutches alternately connect
the engine to realize odd and even speed ratio changes. The torque transmitting
mechanisms provide connections between various gear members, the fixed
interconnections, the input clutches, the output shaft, and the transmission
housing, and are operated in combinations of three to establish at least five
forward speed ratios and at least one reverse speed ratio.

======================================== =======================

United States Patent Application 20040102277
Usoro, Patrick B.; et al.
May 27, 2004

MULTI-SPEED DUAL-CLUTCH PLANETARY TRANSMISSION MECHANISMS HAVING A STATIONARY
GEAR MEMBER AND TWO BRAKES

Abstract

The family of transmissions has a plurality of members that can be utilized in
powertrains to provide at least five forward speed ratios and one reverse speed
ratio. The transmission family members include four planetary gear sets, two input
clutches, eight or nine torque transmitting mechanisms, two fixed interconnections,
and one grounded planetary gear member. The invention provides a low content
multi-speed dual clutch transmission mechanism wherein the two input clutches
alternately connect the engine to realize odd and even number speed ratio ranges.
The torque transmitting mechanisms provide connections between various gear members,
the fixed interconnections, the input shaft, the output shaft, and the transmission
housing, and are operated in combinations of three to establish at least five forward
speed ratios and at least one reverse speed ratio.

======================================== =======================

United States Patent Application 20040102276
Lee, Chunhao J.; et al.
May 27, 2004

MULTI-SPEED DUAL-CLUTCH PLANETARY TRANSMISSION MECHANISMS HAVING A STATIONARY
GEAR MEMBER AND ONE BRAKE

Abstract

The family of transmissions has a plurality of members that can be utilized in
powertrains to provide at least six forward speed ratios and one reverse speed
ratio. The transmission family members include four planetary gear sets, two
input clutches, eight or nine torque transmitting mechanisms, two fixed
interconnections, and one grounded planetary gear member. The invention provides
a low content multi-speed dual clutch transmission mechanism wherein the two input
clutches alternately connect the engine to realize odd and even number speed ratio
ranges. The torque transmitting mechanisms provide connections between various gear
members, the fixed interconnections, the first input clutch, the output shaft, and
the transmission housing, and are operated in combinations of three to establish at
least six forward speed ratios and at least one reverse speed ratio.

======================================== =======================

Runge_Kutta

It's June 1, 2004 and GM has many new patents this week. Here are
the ones that I thought were of interest. It is absolutely
amazing the number of transmission patents that GM has put
out over the last few years.
http://patft.uspto.gov/netahtml/search-bool.html

======================================== =======================

United States Patent 6,743,147
Usoro, et al.
June 1, 2004

Family of multi-speed planetary transmissions having a clutched input and one stationary member

Abstract

A family of transmissions having a plurality of family members each having three
planetary gearsets and six torque-transmitting mechanisms. The planetary gearsets
and the torque-transmitting mechanisms are interconnected such that at least
seven forward speed ratios and one reverse speed ratio can be established within
the three planetary gearsets and transmitted between an input shaft and an output
shaft, by selectively engaging the torque transmitting mechanisms in combinations of four.

======================================== =======================

United States Patent 6,743,146
Usoro, et al.
June 1, 2004

Seven-speed planetary transmissions with a stationary interconnection

Abstract

The family of transmissions has a plurality of members that can be utilized in
powertrains to provide at least seven forward speed ratios and one reverse speed
ratio. The transmission family members include three planetary gear sets having
six torque-transmitting mechanisms and two fixed interconnections between planetary
gear members. Also, one of the fixed interconnections is continuously connected
with the transmission housing. The powertrain includes an engine and torque converter
that is continuously connected to a member of the third planetary gear set and an
output member that is continuously connected with another member of the third
planetary gear set. The six torque-transmitting mechanisms provide interconnections
between various gear members, the fixed interconnections, the input shaft, the
output shaft, and the transmission housing, and are operated in combinations of
two to establish at least seven forward speed ratios and at least one reverse speed ratio.

======================================== =======================

United States Patent 6,743,145
Usoro, et al.
June 1, 2004

Planetary transmissions with three interconnected gear sets and a stationary member

Abstract

The family of transmissions has a plurality of members that can be utilized
in powertrains to provide at least seven forward speed ratios and at least one
reverse speed ratio. The transmission family members include three planetary
gear sets having six torque-transmitting mechanisms and a fixed interconnection.
Also, one planetary gear member is continuously connected with the transmission
housing. The powertrain includes an engine and torque converter that is not
continuously connected with any of the planetary gear members and an output
member that is continuously connected with one of the planetary gear members.
The six torque-transmitting mechanisms provide interconnections between various
gear members, the input shaft, the output shaft, and with the transmission
housing, and are operated in combinations of three to establish at least seven
forward speed ratios and one reverse speed ratio.

======================================== =======================

United States Patent 6,743,144
Lee, et al.
June 1, 2004

Multi-speed dual-clutch planetary transmissions having three continuously interconnected gear members

Abstract

The family of transmissions has a plurality of members that can be utilized
in powertrains to provide at least six forward speed ratios and one reverse
speed ratio. The transmission family members include four planetary gear sets,
two input clutches, eight or nine torque transmitting mechanisms and two fixed
interconnections. The invention provides a low content multi-speed dual clutch
transmission mechanism wherein the two input clutches alternately connect the
engine to realize odd and even speed ratio changes. The nine torque transmitting
mechanisms provide connections between various gear members, the fixed
interconnections, the input clutches, the output shaft, and the transmission
housing, and are operated in combinations of three to establish at least five
forward speed ratios and at least one reverse speed ratio.

======================================== =======================

United States Patent 6,743,143
Usoro, et al.
June 1, 2004

Multi-speed dual-clutch planetary transmission mechanisms having four gear sets and a stationary member
Abstract

The family of transmissions has a plurality of members that can be utilized in
powertrains to provide at least six forward speed ratios and one reverse speed
ratio. The transmission family members include four planetary gear sets, two
input clutches, eight or nine torque transmitting mechanisms, three fixed
interconnections, and one grounded planetary gear member. The invention
provides a low content multi-speed dual clutch transmission mechanism wherein
the two input clutches alternately connect the engine to realize odd and even
speed ratio changes. The torque transmitting mechanisms provide connections
between various gear members, the fixed interconnections, the input clutches,
the output shaft, and the transmission housing, and are operated in combinations
of three to establish at least five forward speed ratios and at least one reverse
speed ratio.

======================================== =======================

United States Patent 6,743,142
Lee, et al.
June 1, 2004

Multi-speed dual-clutch planetary transmission mechanisms having three interconnecting members

Abstract

The family of transmissions has a plurality of members that can be utilized in
powertrains to provide at least six forward speed ratios and one reverse speed
ratio. The transmission family members include four planetary gear sets, two or
three input clutches, seven, eight or nine torque transmitting mechanisms and
three fixed interconnections. The invention provides a low content multi-speed
dual clutch transmission mechanism wherein the two input clutches alternately
connect the engine to realize odd and even speed ratio changes. The torque
transmitting mechanisms provide connections between various gear members, the
fixed interconnections, the input clutches, the output shaft, and the transmission
housing, and are operated in combinations of at least three to establish at least
five forward speed ratios and at least one reverse speed ratio.

======================================== =======================

United States Patent 6,743,141
Bucknor, et al.
June 1, 2004

Planetary transmissions with clutched input and three brakes

Abstract

The family of transmissions has a plurality of members that can be utilized
in powertrains to provide at least seven forward speed ratios and one reverse
speed ratio. The transmission family members include three planetary gear sets
having six torque-transmitting mechanisms and three fixed interconnections. The
powertrain includes an engine and torque converter that is not continuously
connected to any of the planetary gear members. An output shaft is continuously
connected with a member of the first or second planetary gear set or continuously
connected with a member of the third planetary gear set and selectively connectable
with at least one member of the first or second planetary gear set. The six
torque-transmitting mechanisms provide interconnections between various gear
members, the fixed interconnections, the input shaft, the output shaft, and the
transmission housing, and are operated in combinations of three to establish
at least seven forward speed ratios and at least one reverse speed ratio.

======================================== =======================

United States Patent 6,743,140
Lee, et al.
June 1, 2004

Family of six-speed dual-clutch transmissions having two stationary planetary gear members

Abstract

The family of transmissions has a plurality of members that can be utilized
in powertrains to provide at least six forward speed ratios and one reverse
speed ratio. The transmission family members include four planetary gear sets,
two input clutches, eight torque transmitting mechanisms, two fixed
interconnections, and two grounded planetary gear members. The invention provides
a low content multi-speed dual clutch transmission mechanism wherein the two
input clutches alternately connect the engine to realize odd and even number
speed ratio ranges. The eight torque transmitting mechanisms provide connections
between various gear members, the fixed interconnections, the input clutches,
the output shaft, and the transmission housing, and are operated in combinations
of at least two to establish at least six forward speed ratios and at least
one reverse speed ratio. In some cases, at least one of the torque transmitting
mechanisms can be eliminated to realize five forward speed ratios and at least
one reverse speed ratio.

======================================== =======================

United States Patent 6,743,139
Usoro, et al.
June 1, 2004

Multi-speed dual-clutch planetary transmissions having output shaft interconnected with three gear members

Abstract

The family of transmissions has a plurality of members that can be utilized
in powertrains to provide at least six forward speed ratios and one reverse
speed ratio. The transmission family members include four planetary gear sets,
two input clutches, seven, eight or nine torque transmitting mechanisms and
three fixed interconnections. The invention provides a low content multi-speed
dual clutch transmission mechanism wherein the two input clutches alternately
connect the engine to realize odd and even speed ratio changes. The torque
transmitting mechanisms provide connections between various gear members, the
fixed interconnections, the input clutches, the output shaft, and the
transmission housing, and are operated in combinations of three to establish
at least five forward speed ratios and at least one reverse speed ratio.

======================================== =======================

United States Patent 6,743,135
Klemen, et al.
June 1, 2004

Modularly-constructed vehicular transmissions

Abstract

A procedure to assemble a vehicular transmission from modular components.
One determines the type of transmission to be assembled within a prefabricated
housing sub-assembly, and then selects a central shaft sub-assembly from a
family of modular shaft assemblies. A modular shaft sub-assembly appropriate
to the transmission to be assembled is selected and then operatively connected
to the housing sub-assembly to provide a housing assembly. An input sub-assembly
is selected and operatively connected to the housing assembly. An output
sub-assembly is selected from a family of modular output sub-assemblies, the
selected output sub-assembly to be appropriate to the transmission to be
assembled. The selected output subassembly is operatively connected to the
housing assembly to provide a transmission of the type desired.

======================================== =======================

United States Patent 6,742,481
Baldwin
June 1, 2004

Piston cooling oil system with windage tray

Abstract

In a preferred embodiment, a windage tray assembly is mounted to crankshaft
bearing caps which connect with oil passages in the windage tray. The passages
carry the oil through nozzles directed toward the interior of associated
pistons. The arrangement utilizes the windage tray and bearing caps as carriers
for piston cooling oil obtained from the bearing caps, which are already supplied
with oil for lubricating the bearings. Thus, modifications of an engine design
to install a piston cooling system are limited to redesign of the windage tray
to a sandwich-like assembly and modification of the bearing caps to conduct oil
from the bearings to the windage tray passages. To limit oil pumping energy,
oil distribution holes in the bearing caps connect intermittently with crankshaft
journal feed passages so the oil is distributed in individually timed streams
or sprays directed toward the pistons for a short interval once every revolution
of the engine crankshaft.

======================================== =======================
United States Patent 6,742,258
Tarbutton, et al.
June 1, 2004

Method of hydroforming articles and the articles formed thereby

Abstract

A hydroformable frame element is formed from the combination of at least two
elements. The at least two elements are designed with a partially overlapping
region, with an annular space defined within the overlapping region. The annular
space is filled with adhesive, which is then cured to bond the at least two
elements together. The adhesive bond is designed to withstand the stresses
caused by the hydroforming operation and to retain its strength so that the
hydroformed article is then usable as a vehicular frame element.
======================================== =======================

Runge_Kutta

Well, the week (08JUN04) just wouldn't be complete without a bunch of new
GM automatic transmission patents! Be sure to click on the pictures.
A few are interesting.

======================================== ==================================

http://www.uspto.gov/web/patents/pat...-20040608.html

United States Patent 6,746,363
Lee, et al.
June 8, 2004

Multi-speed dual-clutch planetary transmission mechanisms having a
stationary gear member and one brake

Abstract

The family of transmissions has a plurality of members that can be utilized in
powertrains to provide at least six forward speed ratios and one reverse speed
ratio. The transmission family members include four planetary gear sets, two
input clutches, eight or nine torque transmitting mechanisms, two fixed
interconnections, and one grounded planetary gear member. The invention provides
a low content multi-speed dual clutch transmission mechanism wherein the two
input clutches alternately connect the engine to realize odd and even number
speed ratio ranges. The torque transmitting mechanisms provide connections
between various gear members, the fixed interconnections, the first input
clutch, the output shaft, and the transmission housing, and are operated in
combinations of three to establish at least six forward speed ratios and at
least one reverse speed ratio.

======================================== ==================================
http://www.uspto.gov/web/patents/pat...-20040608.html

United States Patent 6,746,362
Lee, et al.
June 8, 2004

Six speed planetary transmission mechanisms with two fixed interconnections

Abstract

The family of transmissions has a plurality of members that can be utilized
in powertrains to provide six forward speed ratios and one reverse speed ratio.
The transmission family members include three planetary gear sets having five
torque-transmitting mechanisms and two fixed interconnections. The powertrain
includes an engine and torque converter that is continuously connected to at
least one of the planetary gear members and an output member that is continuously
connected with another one of the planetary gear members. The five torque-transmitting
mechanisms provide interconnections between various gear members, the fixed
interconnections, the input shaft, the output shaft, and the transmission housing,
and are operated in combinations of three to establish six forward speed ratios
and one reverse speed ratio.

======================================== ==================================
http://www.uspto.gov/web/patents/pat...-20040608.html

United States Patent 6,746,361
Lee, et al.
June 8, 2004
Planetary transmissions with three gear sets and a stationary interconnecting member

Abstract

The family of transmissions has a plurality of members that can be utilized in
powertrains to provide at least seven forward speed ratios and one reverse
speed ratio. The transmission family members include three planetary gear sets
having six torque-transmitting mechanisms and two fixed interconnections. Also,
one interconnecting member is continuously connected with the transmission
housing. The powertrain includes an engine and torque converter that is not
continuously connected to any of the planetary gear members and an output member
that is continuously connected with at least one of the planetary gear members.
The six torque-transmitting mechanisms provide interconnections between various
gear members, the fixed interconnections, the input shaft, and the output shaft,
and are operated in combinations of three to establish at least seven forward
speed ratios and at least one reverse speed ratio.

======================================== ==================================
http://www.uspto.gov/web/patents/pat...-20040608.html

United States Patent 6,746,360
Bucknor, et al.
June 8, 2004

Transmission mechanisms with clutched input and a stationary planetary gear member

Abstract

The family of transmissions has a plurality of members that can be utilized in
powertrains to provide at least seven forward speed ratios and at least one
reverse speed ratio. The transmission family members include three planetary
gear sets having six torque-transmitting mechanisms and two fixed interconnections.
Also, one planetary gear member is continuously connected with the transmission
housing. The powertrain includes an engine and torque converter that is not
continuously connected to the planetary gear members and an output member that
is continuously connected with at least one of the planetary gear members. The
six torque-transmitting mechanisms provide interconnections between various
gear members, the fixed interconnections, the input shaft, the output shaft,
and the transmission housing, and are operated in combinations of three to
establish at least seven forward speed ratios and at least one reverse speed ratio.

======================================== ==================================
http://www.uspto.gov/web/patents/pat...-20040608.html

United States Patent 6,746,358
Bucknor, et al.
June 8, 2004

Planetary transmissions with three interconnected gear sets and six
selectable torque transmitting devices

Abstract

The family of transmissions has a plurality of members that can be utilized in
powertrains to provide at least seven forward speed ratios and one reverse speed
ratio. The transmission family members include three planetary gear sets having
six torque-transmitting mechanisms. First and second interconnections continuously
connect members of the first, second and third planetary gear sets. The powertrain
includes an engine and torque converter that is not continuously connected to any
of the planetary gear members and an output member that is continuously connected
with one of the planetary gear members. The six torque-transmitting mechanisms
provide interconnections between various gear members, the fixed interconnections,
the input shaft, and with the transmission housing, and are operated in combinations
of three to establish at least seven forward speed ratios and one reverse speed ratio.

======================================== ==================================
http://www.uspto.gov/web/patents/pat...-20040608.html

United States Patent 6,746,357
Usoro, et al.
June 8, 2004
Family of six-speed dual-clutch transmissions having four planetary gear
sets and three brakes

Abstract

The family of transmissions has a plurality of members that can be utilized in
powertrains to provide at least six forward speed ratios and one reverse speed
ratio. The transmission family members include four planetary gear sets, two
input clutches, eight torque transmitting mechanisms, and three fixed interconnections.
The invention provides a low content multi-speed dual-clutch transmission mechanisms
wherein the two input clutches alternately connect the engine to realize odd and
even number speed ratio ranges. The eight torque transmitting mechanisms provide
connections between various gear members, the fixed interconnections, the input
clutches, the output shaft, and the transmission housing, and are operated in
combinations of three to establish at least six forward speed ratios and at
least one reverse speed ratio. One of the eight torque transmitting mechanisms
may be eliminated to realize five forward speed ratios and at least one reverse
speed ratio.





[Modified by Runge_Kutta, 1:31 PM 6/8/2004]

Runge_Kutta

Here are the pictures that go with the earlier patents. A few are interesting.
I have yet to find the transmission diagrams very interesing.

http://www.uspto.gov/web/patents/pat...-20040518.html
http://www.uspto.gov/web/patents/pat...-20040518.html
http://www.uspto.gov/web/patents/pat...-20040518.html
http://www.uspto.gov/web/patents/pat...-20040518.html
http://www.uspto.gov/web/patents/pat...-20040518.html

======================================== ==================================
http://www.uspto.gov/web/patents/pat...-20040525.html
http://www.uspto.gov/web/patents/pat...-20040525.html

======================================== ==================================
http://www.uspto.gov/web/patents/pat...-20040601.html
http://www.uspto.gov/web/patents/pat...-20040601.html
http://www.uspto.gov/web/patents/pat...-20040601.html
http://www.uspto.gov/web/patents/pat...-20040601.html
http://www.uspto.gov/web/patents/pat...-20040601.html
http://www.uspto.gov/web/patents/pat...-20040601.html
http://www.uspto.gov/web/patents/pat...-20040601.html
http://www.uspto.gov/web/patents/pat...-20040601.html
http://www.uspto.gov/web/patents/pat...-20040601.html
http://www.uspto.gov/web/patents/pat...-20040601.html

======================================== ==================================

http://www.uspto.gov/web/patents/pat...-20040608.html
http://www.uspto.gov/web/patents/pat...-20040608.html
http://www.uspto.gov/web/patents/pat...-20040608.html
http://www.uspto.gov/web/patents/pat...-20040608.html
http://www.uspto.gov/web/patents/pat...-20040608.html



[Modified by Runge_Kutta, 8:30 PM 6/8/2004]

Runge_Kutta

OK, it's Thursday (10JUN04) - time for this weeks latest patent applications

By the way, did anyone notice this picture from before??
http://www.uspto.gov/web/patents/pat...-20040608.html

Anyway, here are the goods.
======================================== =======================


United States Patent Application 20040110597
Lee, Chunhao J.; et al.
June 10, 2004

FAMILY OF SIX-SPEED DUAL-CLUTCH TRANSMISSIONS HAVING A STATIONARY
PLANETARY MEMBER AND TWO BRAKES

Abstract

The family of transmissions has a plurality of members that can be utilized
in powertrains to provide at least six forward speed ratios and one reverse
speed ratio. The transmission family members include four planetary gear sets,
two input clutches, eight torque transmitting mechanisms, two fixed
interconnections, and one grounded planetary gear member. The invention
provides low content multi-speed dual-clutch transmission mechanisms wherein
the two input clutches alternately connect the engine to realize odd and even
number speed ratio ranges. The eight torque transmitting mechanisms provide
connections between various gear members, the fixed interconnections, the
input clutches, the output shaft, and the transmission housing, and are
operated in combinations of three to establish at least six forward speed
ratios and at least one reverse speed ratio. One of the torque transmitting
mechanisms may be eliminated to provide at least five forward speed ratios
and at least one reverse speed ratio. Also, two of the torque transmitting
mechanisms may function as one of the input clutches to reduce content.

======================================== =======================

United States Patent Application 20040110596
Usoro, Patrick Benedict; et al.
June 10, 2004

FAMILY OF MULTI-SPEED DUAL-CLUTCH TRANSMISSIONS HAVING THREE
INTERCONNECTED PLANETARY GEAR MEMBERS

Abstract

The family of transmissions has a plurality of members that can be utilized
in powertrains to provide at least six forward speed ratios and one reverse
speed ratio. The transmission family members include four planetary gear sets,
two input clutches, eight torque transmitting mechanisms, and two fixed
interconnections. The invention provides a low content multi-speed dual clutch
transmission mechanism wherein the two input clutches alternately connect the
engine to realize odd and even number speed ratio ranges. The eight torque
transmitting mechanisms provide connections between various gear members,
the fixed interconnections, the input clutches, the output shaft, and the
transmission housing, and are operated in combinations of three to establish
at least six forward speed ratios and at least one reverse speed ratio. One
of the torque transmitting mechanisms may be eliminated to provide at least
five forward speed ratios and at least one reverse speed ratio.

======================================== =======================
United States Patent Application 20040110595
Lee, Chunhao J.; et al.
June 10, 2004

MULTI-SPEED DUAL-CLUTCH PLANETARY TRANSMISSIONS HAVING A STATIONARY FOURTH GEAR SET MEMBER

Abstract

The family of transmissions has a plurality of members that can be utilized
in powertrains to provide at least six forward speed ratios and one reverse
speed ratio. The transmission family members include four planetary gear sets,
two input clutches, eight or nine torque transmitting mechanisms and two fixed
interconnections. The invention provides a low content multi-speed dual-clutch
transmission mechanism wherein the two input clutches alternately connect the
engine to realize odd and even number speed ratio ranges. The nine torque
transmitting mechanisms provide connections between various gear members,
the fixed interconnections, the input shaft, the output shaft, and the
transmission housing, and are operated in combinations of three to establish
at least five forward speed ratios and at least one reverse speed ratio.

======================================== =======================o

United States Patent Application 20040108617
Kwag, Choongyong; et al.
June 10, 2004

Carbon fiber-reinforced composite material and method of making

Abstract

A method of making a composite article of a graphite-filled polymer mixture
that is robust during high shear mixing and compounding, and that exhibits
relatively low electrical resistivity after molding. The mixture is formed
by shear mixing a liquid polymeric material, graphitized carbon fibers having
diameters of less than one micrometer, and glass fibers longer than the carbon
fibers. The carbon and glass fibers constitute up to about 25 volume percent
and up to about 50 weight percent, respectively, of the mixture, though the
addition of as little as about 1 weight percent of the glass fibers has been
shown to dramatically reduce resistivity. The mixture is then introduced into
a mold so that the glass fibers are substantially oriented parallel to the
direction of flow. Due at least in part to the glass fibers being larger than
the carbon fibers, the carbon fibers are substantially aligned with the glass
fibers and preferentially segregate to regions of the polymeric matrix near
interfaces between the polymeric matrix and the glass fibers.

Racer X

That last carbon fiber one seemed interesting. Maybe I misread, but it seems that adding glass fiber lowers the electrical resistance of the carbon fiber matrix. Why would they want that? is that so it can act act a ground path? Does it have some benefit to reducing electromagnetic interference?

Who has a plain english explanation of why we want this?

Thanks!
Greg

Runge_Kutta

Plain english is tough to come by in patents. You might try reading the
"background" and "brief summary" of the invention here. "Electrical conductivity
is a necessary property for applications such as charge dissipation, electrostatic
painting, radio frequency interference and fuel cell plates.


http://appft1.uspto.gov/netacgi/nph-...RS=20040108617


[Modified by Runge_Kutta, 4:41 PM 6/10/2004]

Racer X

Thanks! Close enogh to plain english for me. It appears that the reoccuring theme is that it allows electrostatic painting processes. If I recall correctly that process is used on the current Corvette. Perhaps that will help with some of the finish problems they were having with Carbon Fiber hoods.

Greg

Runge_Kutta

Here are two interesting patent applications for June 17, 2004. The
patents of June 15, 2004 weren't very interesting - to me at least.

http://appft1.uspto.gov/netacgi/nph-...RS=20040116237

United States Patent Application 20040116237
Martyka, Patrick J.; et al.
June 17, 2004

Seven-speed planetary transmission

Abstract

A seven-speed planetary transmission incorporates three planetary gearsets and
six torque-transmitting mechanisms. Each of the planetary gearsets is a simple
type planetary gearset, three of the torque-transmitting mechanisms are rotating
type torque-transmitting mechanisms commonly termed clutches, and three of the
torque-transmitting mechanisms are stationary type torque-transmitting mechanisms
commonly termed brakes. A one-way torque-transmitting mechanism is included to
simplify the engagement of the first of the forward speed ratios as well as to
simplify the ratio interchange between the first and second of the speed ratios.

======================================== ===================================
http://appft1.uspto.gov/netacgi/nph-...RS=20040116250

United States Patent Application 20040116250
Whitton, Matthew D.
June 17, 2004

Electronic clutch-to-clutch transmission control system

Abstract

A transmission system includes a first clutch, a second clutch, and a controller.
The controller communicates with the first and second clutches and commands a
gear shift. The controller calculates a torque phase time for the gear shift and
determines a desired torque trajectory within said torque phase time. The controller
determines on-coming torque values for the second clutch and off-going torque values
for the first clutch to achieve the desired torque trajectory within the torque
phase time. The controller calculates an on-coming clutch pressure based on the
on-coming torque value, and an off-going clutch pressure based on the off-going
torque value. The controller delays actuation of the first and second clutches to
compensate for hydraulic delays.

Runge_Kutta

Here's the combined weekly report from the patent office( 22JUN04 and 24JUN04).

________________________________________ ______________________________
http://www.uspto.gov/web/patents/pat...-20040622.html

United States Patent 6,752,121
Rayl, et al.
June 22, 2004

Cylinder deactivation system timing control synchronization

Abstract

An engine control system in a vehicle including a variable displacement internal
combustion engine configured as an overhead valve engine including telescoping
lifters hydraulically actuated by solenoid valves, via hydraulic lines, to
activate and deactivate valves and cylinders in the variable displacement
internal combustion engine, a controller for controlling the displacement of
the variable displacement internal combustion engine, and where the controller
determines the delay time between a displacement command and the actual change
in the position of the telescoping lifters.

======================================== =======================================
http://www.uspto.gov/web/patents/pat...-20040622.html

United States Patent 6,752,736
Lee, et al.
June 22, 2004

Multi-speed dual-clutch planetary transmissions having a stationary fourth gear set member

Abstract

The family of transmissions has a plurality of members that can be utilized in
powertrains to provide at least six forward speed ratios and one reverse speed
ratio. The transmission family members include four planetary gear sets, two
input clutches, eight or nine torque transmitting mechanisms and two fixed
interconnections. The invention provides a low content multi-speed dual-clutch
transmission mechanism wherein the two input clutches alternately connect the
engine to realize odd and even number speed ratio ranges. The nine torque
transmitting mechanisms provide connections between various gear members, the
fixed interconnections, the input shaft, the output shaft, and the transmission
housing, and are operated in combinations of three to establish at least five
forward speed ratios and atleast one reverse speed ratio.

======================================== =======================================
http://www.uspto.gov/web/patents/pat...-20040622.html

United States Patent 6,752,739
Bucknor, et al.
June 22, 2004

Transmission mechanisms with three gear sets and a stationary gear member

Abstract

The family of transmissions has a plurality of members that can be utilized in
powertrains to provide at least seven forward speed ratios and one reverse
speed ratio. The transmission family members include three planetary gear sets
having six torque-transmitting mechanisms and two fixed interconnections. The
powertrain includes an engine and torque converter that is continuously connected
to at least one of the planetary gear members and an output member that is
continuously connected with another one of the planetary gear members. The six
torque-transmitting mechanisms provide interconnections between various gear
members, the fixed interconnections, the input shaft, the output shaft, and
the transmission housing, and are operated in combinations of three to establish
at least seven forward speed ratios and at least one reverse speed ratio.

======================================== =======================================
======================================== =======================================
======================================== =======================================

United States Patent Application 20040121877
Lee, Chunhao J.; et al.
June 24, 2004

Six-speed dual-clutch transmissions having four planetary gear sets and two brakes

Abstract

The family of transmissions has a plurality of members that can be utilized
in powertrains to provide at least six forward speed ratios and one reverse
speed ratio. The transmission family members include four planetary gear sets,
two input clutches, seven or eight torque transmitting mechanisms, two fixed
interconnections, and one grounded planetary gear member. The invention
provides a low content multi-speed dual clutch transmission mechanism wherein
the two input clutches alternately connect the engine to realize odd and even
speed ratio changes. The torque transmitting mechanisms provide connections
between various gear members, the fixed interconnections, the input clutches,
the output shaft, and the transmission housing, and are operated in combinations
of three to establish at least five forward speed ratios and at least one reverse
speed ratio.

======================================== =======================================

United States Patent Application 20040121876
Usoro, Patrick Benedict; et al.
June 24, 2004

FAMILY OF SIX-SPEED DUAL-CLUTCH TRANSMISSIONS HAVING FOUR PLANETARY GEAR SETS AND THREE BRAKES

Abstract

The family of transmissions has a plurality of members that can be utilized
in powertrains to provide at least six forward speed ratios and one reverse
speed ratio. The transmission family members include four planetary gear sets,
two input clutches, eight torque transmitting mechanisms, and three fixed
interconnections. The invention provides a low content multi-speed dual-clutch
transmission mechanisms wherein the two input clutches alternately connect the
engine to realize odd and even number speed ratio ranges. The eight torque
transmitting mechanisms provide connections between various gear members, the
fixed interconnections, the input clutches, the output shaft, and the
transmission housing, and are operated in combinations of three to establish
at least six forward speed ratios and at least one reverse speed ratio. One
of the eight torque transmitting mechanisms may be eliminated to realize five
forward speed ratios and at least one reverse speed ratio.

======================================== =======================================

United States Patent Application 20040121875
Usoro, Patrick Benedict; et al.
June 24, 2004

Family of six-speed dual-clutch transmissions having three planetary gear sets

Abstract

The family of transmissions has a plurality of members that can be utilized
in powertrains to provide at least six forward speed ratios and one reverse
speed ratio. The transmission family members include three planetary gear
sets, two input clutches, nine, ten or eleven torque transmitting mechanisms
and a fixed interconnection. The invention provides a low content multi-speed
dual clutch transmission mechanism wherein the two input clutches alternately
connect the engine to realize odd and even number speed ratio ranges. The
torque transmitting mechanisms provide connections between various gear
members, the fixed interconnection, the input clutches, the output shaft,
and the transmission housing, and are operated in combinations of at least
three to establish at least five forward speed ratios and at least one reverse
speed ratio.

======================================== =======================================

United States Patent Application 20040118107
Ament, Frank
June 24, 2004

Exhaust emission aftertreatment

Abstract

An engine control system in a vehicle including a variable displacement
internal combustion engine, a controller for controlling the displacement of
the variable displacement internal combustion engine, and where the controller
operates the variable displacement internal combustion engine in a partially
displaced operating mode upon startup to increase exhaust gas temperature.

======================================== =======================================