Control valve

Details Control valve Control valve

1983-08-08

1985-01-22

Yeung, James C.

Valves and valve actuation

Fluid actuated or retarded

Pilot or servo type motor

251 30, 251 44, F16K 3102, F16K 31102

Patent

active

044947267

ABSTRACT:
A solenoid-operated control valve has a main orifice and a valve member for controlling fluid flow therethrough. A leakage orifice extends through the valve member. A check valve seals the leakage orifice when the main orifice is blocked and moves to open the leakage orifice before the main orifice is opened.

REFERENCES:
patent: 4201362 (1980-05-01), Nishimi et al.

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