Hydrodynamic coupling, comprises friction area created by deep drawing also used for calibrating piston of direct drive clutch

摘要

The device has a housing (5) to be engaged with a drive and accommodating an impeller, a turbine wheel and the piston (54) of a direct drive clutch (48) connecting the housing (5) to an output device (148). A friction area with two sets of friction elements (65,66) is located at the inner surface of the housing (5). The area is positioned at the same distance from the rotation axis of the housing (5) as the mantle of the piston (54) from a sliding surface (182). The friction area is created by deep drawing also used for calibrating the piston (54) of the direct drive clutch (48).