Apparatus for producing a rotary speed-dependent control pressur

Details Apparatus for producing a rotary speed-dependent control pressur Apparatus for producing a rotary speed-dependent control pressur

1981-11-05

1983-06-21

Schwadron, Martin P.

Fluid handling

Pressure modulating relays or followers

137117, F15B 500

Patent

active

043889417

ABSTRACT:
The invention relates to a device for producing a control pressure which corresponds to a rotary speed imparted to a shaft of a pump which is a part of the device. The device includes a measuring orifice formed by a fixed throttle and a control orifice formed by piston arrangement operating as a controlled throttle. The controlled throttle is responsive to oppositely acting pressures from opposite sides of the fixed throttle. The controlled throttle is in series with a fixed discharge throttle and the control pressure is tapped from between the controlled throttle and the discharge throttle.

REFERENCES:
patent: 3234957 (1966-02-01), Allen
patent: 3532106 (1970-10-01), Greune
patent: 3908377 (1975-09-01), Riedhammer

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