Patent ID: 7484607
Filing Date: 2009-02-03
Classification: F16D,F16F

Abstract:
1. A torsional vibration damper for mounting in a gearbox housing between a drive and a clutch device, the torsional vibration damper comprising: a first damping unit disposed in a damping space which is free of fluid feed and discharge lines; an input part connecting the first damping unit to the drive; a second damping unit; an output part connecting the second damping unit to a takeoff; an intermediate part comprising a drive-side section having drive-side drive elements connected to the first damping unit, a takeoff-side section having takeoff-side drive elements connected to the second damping unit, and a connecting section connecting the drive-side section and the takeoff-side section, the intermediate part transmitting torsional vibrations between the first and second damping units, wherein the takeoff-side drive elements, the second damping unit and the takeoff are mounted in a torque-transmitting space of the clutch device, said torque transmitting space being provided with at least one fluid inlet and at least one fluid outlet; a sealing wall disposed between the damping space and the torque-transmitting space, the sealing wall being arranged radially outside of the connecting section, the sealing wall forming an opening between the sealing wall and a penetration area of the connecting section of the intermediate part; and a seal in the opening, the sealing wall having an outer radial side resting sealingly against the gearbox housing, and an inner radial side holding the seal, such that the sealing wall prevents fluid in the torque transmitting space from entering the damping space.