Valve arrangement for limiting torque of a hydraulic motor of a

Details Valve arrangement for limiting torque of a hydraulic motor of a Valve arrangement for limiting torque of a hydraulic motor of a

1977-04-12

1978-09-12

Krizmanich, George H.

Chemistry: physical processes

233 19R, 233 24, B04B 120, B04B 910

Patent

active

041131711

ABSTRACT:
A valve arrangement limits the torque of a hydraulic motor of a centrifuge by adjusting the flow of a pressure medium supplied by a pressure source. Adjustment of the delivered flow of pressure medium is accomplished either by direct adjustment of a pump or by adjustment of a flow-measuring throttle element associated with a pressure source. A pushing element is mounted in a valve housing as an adjusting element which is exposed to the pressure of the pressure medium and rests against a spring. An adjustable auxiliary valve is provided which opens an overpressure channel to a part of the pressure medium when a certain threshold pressure is reached, thus increasing abruptly the flow of pressure medium which is delivered.

REFERENCES:
patent: 3734399 (1973-05-01), Oas
patent: 3923241 (1975-12-01), Cyphelly

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