IP Library Granted Patent US 8,689,959
Granted Patent B2
US 8,689,959 · App. 13/223,596 · Granted Apr 8, 2014

Clutch assembly for hybrid transmission

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Quick Facts
Patent No.
US 8,689,959
App. No.
13/223,596
Granted
Apr 8, 2014
Kind
B2
Abstract

A fully contained, drop-in clutch assembly, which includes a clutch cover which has slots, a moveable pressure plate with radially outwardly directed tabs that engages the slots of the clutch allowing axial movement, a fixed pressure plate which is fastened to the clutch cover by fastening elements, a clutch disc disposed between the movable pressure plate and the fixed pressure plate, and a diaphragm spring. By fastening the fixed pressure plate to the clutch cover, the clutch assembly is fully contained, allowing easy assembly to transmission housing and a flexplate.

Claims (22)

1. A clutch assembly for connecting a power producing device to a transmission, comprising:

a clutch cover having slots;

a moveable pressure plate having radially outwardly directed tabs engaging the slots of the clutch cover;

a fixed pressure plate fastened to the clutch cover by fastening elements, ensuring the assembly is fully contained;

a clutch disc disposed between the movable pressure plate and the fixed pressure plate; and

a diaphragm spring arranged within the clutch cover,

wherein, in a free state, the diaphragm spring urges the moveable pressure plate away from the fixed pressure plate.

2. The clutch assembly of claim 1 , further comprising a first retaining member which secures an outer circumferential edge of the diaphragm spring within the clutch cover.

3. The clutch assembly of claim 2 , wherein the first retaining member is a rivet or a radial inward protrusion formed in the clutch cover.

4. The clutch assembly of claim 2 , further comprising a wire ring or a steel stamping arranged between the moveable pressure plate and the diaphragm spring.

5. The clutch assembly of claim 4 , further comprising a second retaining member, which secures the diaphragm spring and the wire ring to the moveable pressure plate.

6. The clutch assembly of claim 5 , wherein the second retaining member is a spring clip.

7. A clutch assembly, which is normally open, for connecting a power producing device to a transmission, comprising:

a clutch cover having slots;

a moveable pressure plate having radially outwardly directed tabs engaging the slots of the clutch cover;

a fixed pressure plate fastened to the clutch cover by fastening elements, ensuring the assembly is fully contained;

a clutch disc disposed between the movable pressure plate and the fixed pressure plate;

a diaphragm spring urging the moveable pressure plate away from the fixed pressure plate; and a first retaining member securing an outer circumferential edge of the diaphragm spring within the clutch cover.

8. The clutch assembly of claim 7 , wherein the first retaining member is a rivet or a radial inward protrusion formed in the clutch cover.

9. The clutch assembly of claim 7 , further comprising a wire ring or a steel stamping arranged between the moveable pressure plate and the diaphragm spring.

10. The clutch assembly of claim 9 , further comprising a second retaining member, which secures the diaphragm spring and the wire ring to the moveable pressure plate.

11. The clutch assembly of claim 10 , wherein the second retaining member is a spring clip.

Assignments (6)
CORRECTIVE ASSIGNMENT TO CORRECT THE PROPERTY NUMBERS PREVIOUSLY RECORDED ON REEL 037732 FRAME 0347. ASSIGNOR(S) HEREBY CONFIRMS THE APP. NO. 14/553248 SHOULD BE APP. NO. 14/553258. Recorded Oct 11, 2016
From: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
To: SCHAEFFLER TECHNOLOGIES AG & CO. KG
Reel/Frame 040404/0530 →
MERGER AND CHANGE OF NAME Recorded Feb 5, 2016
From: SCHAEFFLER TECHNOLOGIES AG & CO. KG; SCHAEFFLER VERWALTUNGS 5 GMBH
To: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
Reel/Frame 037732/0228 →
CHANGE OF NAME Recorded Feb 5, 2016
From: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
To: SCHAEFFLER TECHNOLOGIES AG & CO. KG
Reel/Frame 037732/0347 →
CHANGE OF NAME Recorded Jul 11, 2012
From: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
To: SCHAEFFLER TECHNOLOGIES AG & CO. KG
Reel/Frame 028533/0036 →
CORRECTIVE ASSIGNMENT TO CORRECT THE NAME OF ASSIGNOR PREVIOUSLY RECORDED ON REEL 026843 FRAME 0714. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNOR IS STEVEN OLSEN. Recorded Oct 24, 2011
From: OLSEN, STEVEN
To: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
Reel/Frame 027106/0668 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 1, 2011
From: OLSEN, SEVEN
To: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
Reel/Frame 026843/0714 →