Patent ID: 8074449
Filing Date: 2011-12-13
Classification: F16D

Abstract:
1. A hydrodynamic clutch, comprising: an impeller and a turbine wheel which jointly form a toroidal working chamber which is configured to be filled with a working medium; a throttle plate movable in an axial direction of the hydrodynamic clutch in order to be at least one of selectively introduced into or displaced within the working chamber; said throttle plate progressing in circumferential direction of the hydrodynamic clutch in the area of a central diameter of the working chamber, and from the perspective of an axial section across the hydrodynamic clutch extending with an intake side—against which a circulation flow of the working medium flows—parallel to an axis of rotation of the hydrodynamic clutch; said throttle plate being movable from an inactive position where it has no, or only a very insignificant throttling effect upon the circulation flow of working medium in the working chamber into an active position where it has a comparatively substantially greater throttling effect upon the circulation flow, and whereby the inactive position is located in the area of a separation gap between the impeller and the turbine wheel; and wherein from a perspective of an axial section across the hydrodynamic clutch the working chamber has a full surface form without a central area which is delimited by a wall relative to the remaining working chamber, so that the throttle plate in its active position, as well as also in its inactive position is directly surrounded by the flow zones of the working chamber, without a wall inserted in between.