Patent ID: 7249665
Filing Date: 2007-07-31
Classification: F16D

Abstract:
1. A double clutch for a transmission, comprising: an input shaft; a pair of transmission output shafts each associated with one of a first clutch and a second clutch, the first and second clutches being rotatable about a common rotational axis and arranged one behind the other in the axial direction; a common outer plate support for each of the two clutches; a tension sleeve generally adjacent the common outer plate support for selectively activating the first clutch to permit the input shaft to drive the one of the pair of transmission output shafts associated with the first clutch; a hydraulically-actuated piston for selectively activating the second clutch to permit the input shaft to drive the one of the pair of transmission output shafts associated with the second clutch; a pressure apply chamber associated with the piston for applying hydraulic pressure to shift the piston to activate the second clutch and a second clutch compensation chamber for compensating centrifugal force for the piston; and a piston portion of the tension sleeve and a pressure apply chamber associated with the piston portion of the tension sleeve for applying hydraulic pressure to shift the piston portion of the tension sleeve and the tension sleeve to activate the first clutch, and a first clutch compensation chamber for compensating centrifugal force for the piston portion of the tension sleeve.