Patent ID: 7686147
Filing Date: 2010-03-30
Classification: F16C,F16D,Y10S

Abstract:
1. A torque transmission device for a drive train of a motor vehicle having a double clutch to transmit torque, said torque transmission device comprising: a drive unit having a drive shaft, and a transmission having at least two transmission input shafts that are connected to a double clutch unit that includes respective drive unit side and transmission side clutch discs each having a friction lining, wherein the drive unit side clutch disc is releasably affixed to one of the transmission input shafts and has a two-part design that includes a hub from which an inner flanged ring extends that is releasably affixed to an outer annular ring on which friction linings are radially outwardly mounted, and the transmission side clutch disc is nonreleasably affixed to another of the transmission input shafts, an intermediate pressure plate between the friction linings of the drive unit side clutch disc and the friction linings of the transmission side clutch disc for connection of one of the clutch discs of the double clutch unit to the drive shaft of the drive unit, wherein the friction linings of the clutch discs are positioned between the intermediate pressure plate and respective drive unit side and transmission side pressure plates associated with the respective drive unit side and transmission side clutch discs that move with the assistance of associated respective drive unit side and transmission side pressure plate actuation devices in an axial direction relative to the intermediate pressure plate and relative to a respective transmission input shaft in order to clamp the friction linings between the intermediate pressure plate and respective pressure plates associated with the respective clutch discs, wherein the double clutch unit is axially supported by the intermediate pressure plate which is axially supported on a radial bearing carried by one of the transmission input shafts, wherein pressure plate actuation forces that act in an axial direction of the double clutch unit are borne by the bearing, and wherein the respective drive unit side pressure plate and the transmission side pressure plate actuation devices are each positioned between the intermediate pressure plate and a transmission side clutch housing.