Clutch assembly
AssigneeGKN Automotive AG
InventorsMarkus Wiegandt, Eduard Kinzel
Life of this patent
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Abstract
A clutch assembly comprises at least one controllable friction clutch for variable torque transmission between a clutch input part and a clutch output part; a hydraulic actuator assembly for actuating the friction clutch, the actuator assembly comprising a hydraulic pump, a hydraulic chamber in which hydraulic pressure for the friction clutch is built up by the hydraulic pump and a return flow element with an orifice, via which hydraulic fluid can flow out of the hydraulic chamber into a housing reservoir when the hydraulic pump is not actuated, wherein the hydraulic fluid defines a filling level in the housing reservoir; wherein an outlet opening of the return flow element lies below the filling level of the hydraulic fluid in a inactive state.
Claims17
A clutch assembly for a driveline of a motor vehicle, comprising:
- at least one controllable friction clutch for variable torque transmission between a clutch input part and a clutch output part;
- a hydraulic actuator assembly for operating the friction clutch, the actuator assembly comprising a hydraulic pump, a hydraulic chamber hydraulically connected to the hydraulic pump and a return flow element with an orifice, via which hydraulic fluid can flow out of the hydraulic chamber into a housing reservoir, wherein the hydraulic fluid defines a filling level in the housing reservoir in an inactive state;
- wherein an outlet opening of the return flow element is arranged below the filling level of the hydraulic fluid in the inactive state.
Dependencies are inferred from the claim text.