Brakes – Internal-resistance motion retarder – Using a rotary-type fluid damper
Patent
1991-04-05
1993-03-16
Graham, Matthew C.
Brakes
Internal-resistance motion retarder
Using a rotary-type fluid damper
188290, F16D 5704, F03D 900, B60T 1087
Patent
active
051936542
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.
REFERENCES:
patent: 2113109 (1938-04-01), Mater
patent: 4004660 (1977-01-01), Shore et al.
patent: 4474270 (1984-10-01), Vogelsang
patent: 4938323 (1990-07-01), Holler et al.
Graham Matthew C.
Poon Peter M.
Voith Turbo GmbH & Co. KG
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