IP Library Patent Application 12093808
Patent Application
App. No. 12/093,808

Clutch for a Motor Vehicle

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Quick Facts
Patent No.
US None
App. No.
12/093,808
Abstract

In a clutch for a motor vehicle comprising a first ( 1 ) and a second shaft ( 4 ), a first ( 2 ) and a second ( 11 ) plate, which are connected in a manner fixed against relative rotation to the first shaft ( 1 ) and of which the first plate ( 8 ) has a higher thermal capacity than the second plate ( 11 ) and of which at least one plate ( 11 ) is axially displaceable in order to clamp a clutch disc ( 7 ), which is connected in a manner fixed against relative rotation to the second shaft ( 4 ) and which is provided on both sides with a wear layer ( 8, 9 ), between the two plates ( 8, 11 ), the wear layer ( 9 ) on the side facing the second plate ( 11 ) is thicker than the wear layer ( 8 ) on the side facing the first plate ( 2 ).

Claims (9)

1 . A clutch for a motor vehicle, comprising:

a first and a second shaft; and

a first and a second plate connected in a manner fixed against relative rotation to the first shaft and of which the first plate has a higher thermal capacity than the second plate,

wherein at least one of the first and second plates is axially displaceable in order to clamp a clutch disc connected in a manner fixed against relative rotation to the second shaft and which is provided on both sides with a wear layer between the two plates, and

wherein the wear layer on the side facing the second plate is thicker than the wear layer on the side facing the first plate.

2 . The clutch according to claim 1 , wherein the first plate is axially fixed.

3 . The clutch according to claim 1 , wherein the wear layer is thicker by at least a factor of about 1.2 on the side facing the second plate than on the side facing the first plate.

4 . The clutch according to claim 1 , wherein the wear layer is thicker by at most a factor of about 1.7 on the side facing the second plate than on the side facing the first plate.

5 . (canceled)

Assignments (11)
CHANGE OF NAME Recorded Feb 10, 2011
From: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
To: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Reel/Frame 025781/0211 →
SECURITY AGREEMENT Recorded Nov 8, 2010
From: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
To: WILMINGTON TRUST COMPANY
Reel/Frame 025324/0475 →
RELEASE OF SECURITY INTEREST Recorded Nov 5, 2010
From: UAW RETIREE MEDICAL BENEFITS TRUST
To: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
Reel/Frame 025315/0001 →
RELEASE OF SECURITY INTEREST Recorded Nov 4, 2010
From: UNITED STATES DEPARTMENT OF THE TREASURY
To: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
Reel/Frame 025245/0780 →
SECURITY AGREEMENT Recorded Aug 28, 2009
From: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
To: UAW RETIREE MEDICAL BENEFITS TRUST
Reel/Frame 023162/0187 →
SECURITY AGREEMENT Recorded Aug 27, 2009
From: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
To: UNITED STATES DEPARTMENT OF THE TREASURY
Reel/Frame 023156/0215 →
RELEASE OF SECURITY INTEREST Recorded Aug 21, 2009
From: CITICORP USA, INC. AS AGENT FOR BANK PRIORITY SECURED PARTIES; CITICORP USA, INC. AS AGENT FOR HEDGE PRIORITY SECURED PARTIES
To: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
Reel/Frame 023155/0880 →
RELEASE OF SECURITY INTEREST Recorded Aug 20, 2009
From: UNITED STATES DEPARTMENT OF THE TREASURY
To: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
Reel/Frame 023124/0670 →
SECURITY AGREEMENT Recorded Apr 16, 2009
From: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
To: CITICORP USA, INC. AS AGENT FOR BANK PRIORITY SECURED PARTIES; CITICORP USA, INC. AS AGENT FOR HEDGE PRIORITY SECURED PARTIES
Reel/Frame 022554/0479 →
SECURITY AGREEMENT Recorded Feb 4, 2009
From: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
To: UNITED STATES DEPARTMENT OF THE TREASURY
Reel/Frame 022201/0448 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 15, 2008
From: HAMANN, HORST
To: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
Reel/Frame 020950/0892 →