Patent ID: 8875861

Claim:
A liquid friction clutch ( 1 ) having a housing ( 2 , 3 ), having a clutch disk ( 4 ) which is rotatable relative to the housing ( 2 , 3 ) and which is rotatably arranged on an end ( 5 ) of a shaft ( 6 ) which is mounted centrally within the housing ( 2 , 3 ) which shaft ( 6 ) bears on its other end ( 8 ) a driveable active element ( 7 ); having a working chamber ( 9 ) between the housing ( 2 , 3 ) and the clutch disk ( 4 ); having a storage chamber ( 10 ) for clutch fluid; having a supply duct ( 11 ) which leads from the storage chamber ( 10 ) to the working chamber ( 9 ); and having a stationary clutch part ( 13 ) relative to which the housing ( 2 , 3 ) is rotatable, characterized by a rotatably mounted pump element ( 14 ) which, with the housing ( 2 , 3 ), defines a shear gap ( 12 ); and by a brake device for braking said pump element.