Single actuator self-adjusting dry dual clutch
AssigneeGM Global Technology Operations LLC
InventorJesse B. Bradley
Life of this patent
Estimating the term…
Abstract
A self-adjusting twin or dual dry clutch assembly for a dual clutch transmission includes a single actuator. The clutch assembly includes one center and two outer clutch drive plates or discs which independently engage a pair of interleaved driven clutch plates or discs which are coupled to and drive a respective pair of transmission countershafts or layshafts. The single actuator translates an internal clutch carrier which acts upon the outer clutch plates through respective pluralities of linear one way clutches. Self-adjustment of the dual clutch assembly is achieved by additional linear one way clutches acting through pairs of spring biased control rods.
Claims19
A dual clutch assembly comprising, in combination,
- a first clutch drive disc having a first friction face,
- a second, center clutch drive disc having a second friction face and a third friction face,
- a third clutch drive disc having a fourth friction face,
- a carrier member connected to and driving said first, second and third clutch drive discs,
- a first driven clutch disc disposed between said first friction face and said second friction face,
- a second driven clutch disc disposed between said third friction face and said fourth friction face,
- a clutch actuator for axially translating said carrier member,
- a first one way clutch disposed between said carrier member and said first clutch drive disc and a second one way clutch disposed between said carrier member and said third clutch drive disc,
- a first control rod associated with said first clutch drive disc and a second control rod associated with said third clutch drive disc,
- a third one way clutch operably disposed between said first clutch drive disc and said first control rod and a fourth one way clutch operably disposed between said third clutch drive disc and said second control rod,
- a first compression spring disposed between said third one way clutch and said first control rod and a second compression spring disposed between said fourth one way clutch and said second control rod, and
- a third compression spring operably disposed between said second clutch drive disc and said first control rod and a fourth compression spring operably disposed between said second clutch drive disc and said second control rod.
A twin clutch assembly for a dual clutch transmission comprising, in combination,
- a first, outer clutch plate having a first face,
- a second, center clutch plate having a second face and a third face,
- a third, outer clutch plate having a fourth face,
- a carrier member connected to and driving said first, second and third clutch plates,
- a first driven clutch plate disposed between said first outer clutch plate and said second, center clutch plate,
- a second driven clutch plate disposed between said second, center clutch plate and said third, outer clutch plate,
- an actuator for axially translating said carrier member,
- a first one way clutch disposed between said carrier member and said first, outer clutch plate and a second one way clutch disposed between said carrier member and said third, outer clutch plate,
- a first control rod associated with said first, outer clutch plate and a second control rod associated with said third, outer clutch plate,
- a third one way clutch operably disposed between said first, outer clutch plate and said first control rod and a fourth one way clutch operably disposed between said third, outer clutch plate and said second control rod, and
- a first compression spring disposed between said third one way clutch and said first control rod and a second compression spring disposed between said fourth one way clutch and said second control rod.
A dual clutch assembly for a dual clutch transmission comprising, in combination,
- a first, outer clutch plate having a first face,
- a second, center clutch plate having a second face and a third face,
- a third, outer clutch plate having a fourth face,
- a carrier member connected to and driving said first, second and third clutch plates,
- a first driven clutch plate disposed between said first outer clutch plate and said second, center clutch plate,
- a second driven clutch plate disposed between said second, center clutch plate and said third, outer clutch plate,
- an actuator for axially translating said carrier member,
- a first one way clutch disposed between said carrier member and said first, outer clutch plate and a second one way clutch disposed between said carrier member and said third, outer clutch plate.
Dependencies are inferred from the claim text.