Torque transmission unit used in vehicle drive train, includes inlet and outlet channels for air cooling, which are recessed into flange of clutch bell housing

摘要

Axially-open inlet channels (21-24) and outlet channels (51, 52) for cooling air, are recessed into the flange contact surface (8) of the clutch bell housing (1). The outlet channel (51) has an outlet opening (56) which is radially outside the clutch, and offset in the direction of clutch rotation, from the inlet opening (55) of the outlet channel (51). The outlet channels run along a secant to the circumference of the flange contact surface.