To improve a torque transfer device for transferring torque between a drive unit and a shaft that is rotatable around an axis of rotation in a drive train of an automobile; which includes a converter cover with which a torque converter can be coupled or is coupled to a drive unit; in which converter cover may be coupled to a turbine wheel to transfer torque via pump wheel; in which turbine wheel may be bridged by a torque converter lockup clutch for torque transfer; in which the converter lock up clutch includes a piston movable in an axial direction and is pressurizable by a hydraulic medium in a pressure chamber that extends in the axial direction between the piston and a pressure chamber limiting part.
The pressure chamber limiting part includes a pressure equalizing device that enables an equalization of pressure between the pressure chamber and an intermediate space which extends partially in the axial direction between the converter cover and the pressure chamber limiting part.
MUELLER BRUNO
Toshiomi Yamazaki
Takuya Kuno
Hiroshi Sugimoto
Kimihiro Hoshi
Hiroyasu Ninomiya
Einzel Felix-Reinhard
Reinhard Einsel