Importance

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Abstract

The invention concerns a hydrodynamic retarder, the stator blade wheel of which can be brought into eccentric, nonaligned positions with respect to the rotor blade wheel. Either by formation of a blade free circumferential region in the blading of the stator blade wheel together with a longitudinal guide for eccentric shifting or by eccentric swingable mounting of the stator blade wheel, a directly proportional force is obtained from the corresponding braking torque in the stator blade wheel. This force represents a measure for the braking torque and serves as a characteristic value for a torque adjustment. This creates a simple control device with characteristic curves which requires a smaller retarder profile diameter in order to obtain given operating points. The advantage is the reduction of the outside dimensions, the weight and the expense for regulating the brake torque.

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First Claim