Patent ID: 7654373

Claim:
A torque transmission device in a drive train ( 1 ) of a motor vehicle for torque transmission between an internal combustion engine ( 3 ) with a crankshaft, and a gearbox ( 5 ) with at least one gearbox input shaft, and with a hydrodynamic torque converter ( 8 ) which comprises a driving pump wheel ( 18 ), which is connected, via a housing ( 12 ), to the crankshaft of the internal combustion engine ( 3 ) such that the driving pump wheel and combustion engine are rotationally fixed relative to one another, and a driven turbine wheel ( 20 ) which is disposed in the housing ( 12 ) such that the turbine wheel is rotatable, and with a torque converter lockup clutch ( 50 ) which can be actuated by a piston ( 54 ) and comprises outer lamella carrier ( 52 ) inner lamella carrier ( 44 ), driver plate ( 42 ) with radially inner edge ( 66 ), and coupling element ( 46 ), wherein the inner lamella carrier ( 44 ) is fixedly secured to the coupling element ( 46 ), wherein the driver plate ( 42 ) is secured to the inner lamellae carrier ( 44 ) such that the driver plate ( 42 ) and the inner lamellae carrier ( 44 ) are rotationally fixed relative to one another, wherein the driver plate ( 42 ) is fixedly connected to an input part ( 37 ) of a torsional damping device ( 30 ), wherein the inner lamellae carrier ( 44 ) and the coupling element ( 46 ) form an annular space, wherein the radially inner edge ( 66 ) is disposed in the annular space, and wherein the radially inner edge ( 66 ) is axially displaceable with respect to the inner lamellae carrier ( 44 ) and the coupling element ( 46 ).