Patent ID: 8210332
Filing Date: 2012-07-03
Classification: F16C,F16D,Y10S

Abstract:
1. A torque transmission device for a drive train of a motor vehicle including a drive unit having a drive shaft and including a double clutch to transmit torque, said torque transmission device comprising: a transmission having a first, internally hollow transmission input shaft and a second, inner transmission input shaft that is rotatably mounted within the first transmission shaft, wherein the transmission input shafts are non-rotatably connected to respective first and second clutch discs of the double clutch, each clutch disc having a friction lining; an intermediate pressure plate between the friction linings of the first clutch disc and the friction linings of the second 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 intermediate pressure plate extends radially outwardly of the internally hollow transmission input shaft; wherein the friction linings of the clutch discs are positioned between the intermediate pressure plate and pressure plates associated with the respective clutch discs, each clutch disc movable with the assistance of a respective actuation device in an axial direction relative to the intermediate pressure plate in reference to the transmission input shafts in order to operate the clutches, wherein one of the clutch discs attached to a transmission input shaft is a two-part structure that includes an inner part and an outer part that are coaxial relative to each other; a tubular hub having an input-side end and a transmission-side end and rotatably mounted between the two transmission input shafts, wherein the intermediate pressure plate is affixed to the input-side end of the hub; an intervening radial bearing positioned adjacent the transmission-side end of the hub between an inner surface of the first, hollow input shaft and an outer surface of the hub; and wherein an axial end of the intervening radial bearing abuts a radially-inwardly-extending step formed on an inner cylindrical surface of the first, hollow input shaft.