Solenoid controlled flow valve

Details Solenoid controlled flow valve Solenoid controlled flow valve

1984-02-13

1985-11-19

Scott, Samuel

Valves and valve actuation

Fluid actuated or retarded

Pilot or servo type motor

251 33, 251 43, F16K 1110

Patent

active

045537321

ABSTRACT:
A pilot operated flow regulating valve which can be remotely controlled by varying the energization to a solenoid. The valve consists of a normally-closed, spring-biased, pressure-differential-actuated, main valve element and a pressure-compensated, pilot flow valve employing a solenoid acting like a remotely controllable electromagnetic spring to control the flow of fluid through the pilot valve and the pressure difference across the main valve element.

REFERENCES:
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patent: 3069846 (1962-12-01), Buescher
patent: 3250294 (1966-05-01), Hipple
patent: 3460081 (1969-08-01), Tillman
patent: 3667722 (1972-06-01), Katz et al.
patent: 3788597 (1974-01-01), Ichioka
patent: 3900822 (1975-08-01), Hardwick et al.
patent: 4206781 (1980-06-01), Salter
patent: 4236690 (1980-12-01), Smilges et al.
patent: 4305566 (1981-12-01), Grawunde
patent: 4429708 (1984-02-01), Strueh
patent: 4452424 (1984-06-01), Kawata
patent: 4478245 (1984-10-01), Bender
John Pippenger et al., Industrial Hydraulics, .COPYRGT.1962, McGraw-Hill Book Co., NY, pp. 237-242.

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