Adjustable pressure regulating solenoid valve

Details Adjustable pressure regulating solenoid valve Adjustable pressure regulating solenoid valve

1985-05-01

1987-07-21

Makay, Albert J.

Valves and valve actuation

Fluid actuated or retarded

Pilot or servo type motor

137524, 13754323, 137599, 251 3002, F16K 3112

Patent

active

046812970

ABSTRACT:
A pressure regulating solenoid valve is disclosed which comprises a valve body having a flow path therethrough having an inlet and an outlet. The valve body has a main valve seat within the flow path, and a main valve member mounted within the valve body for movement between an open position, in which the main valve member is clear of the main valve seat for the primary flow of fluid between the inlet and outlet, and a closed position in which the main valve member engages the main valve seat so as to block the primary flow of fluid through the main valve seat. A spring biased combination throttling valve/check valve is interposed within the flow path between the upstream and downstream sides of the main valve seat so as to permit a secondary flow of fluid from the inlet to the outlet of the valve housing when the main valve is closed and when the pressure differential of the flow through this secondary valve seat is above a predetermined value.

REFERENCES:
patent: 2873760 (1959-02-01), Safford
patent: 2944408 (1960-07-01), Willis
patent: 3099999 (1963-08-01), Vismara
patent: 3103338 (1963-09-01), Marmo
patent: 3572372 (1971-03-01), Moore
patent: 4262695 (1981-04-01), Iizumi
patent: 4295631 (1981-10-01), Allen
patent: 4338856 (1982-07-01), Smilges et al.
patent: 4390157 (1983-06-01), Meckstroth
patent: 4545405 (1985-10-01), LaBelle

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