Solenoid operated hydraulic control valve

Details Solenoid operated hydraulic control valve Solenoid operated hydraulic control valve

1990-11-09

1992-04-21

Rosenthal, Arnold

Valves and valve actuation

Electrically actuated valve

Having means to produce digital pulses

25112907, 25112916, 251282, F16K 3106, F15B 13044

Patent

active

051060531

ABSTRACT:
A solenoid operated hydraulic control valve system including a solenoid operated valve having a specially ported spool valve to statically balance spool forces in the opened and closed positions.

REFERENCES:
patent: 2457017 (1948-12-01), Walley
patent: 2697581 (1954-12-01), Ray
patent: 3368791 (1968-02-01), Wells
patent: 3420256 (1967-01-01), Kobnick
patent: 3926405 (1975-12-01), Arnold
patent: 4258749 (1981-03-01), Mayer
patent: 4571007 (1986-02-01), Carmichael et al.
patent: 4579145 (1986-04-01), Leiber et al.

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