Piloted directional control valve

Details Piloted directional control valve Piloted directional control valve

2006-01-10

2006-01-10

Walczak, David J. (Department: 3751)

Valves and valve actuation

Fluid actuated or retarded

Pilot or servo type motor

C251S161000, C251S317000, C137S625460

Reexamination Certificate

active

06983922

ABSTRACT:
An electrically powered rotary solenoid drives a hydraulic pilot valve to actuate a hydraulic main valve. The pilot valve includes a seal carrier rotatable with respect to a seal plate. A carrier supply port and a plate supply port are centered about an axis of rotation to remain in fluid communication during rotation. A carrier function port and plate function port are spaced from the axis of rotation, such that they may be selectively placed in fluid communication to pass fluid to actuate the main valve. When actuated, the main valve passes fluid pressure to one or more hydraulically actuated components.

REFERENCES:
patent: 3014499 (1961-12-01), Barksdale
patent: 3556151 (1971-01-01), Masuda et al.
patent: 4088152 (1978-05-01), Baugh
patent: 4156437 (1979-05-01), Chivens et al.
patent: 4157521 (1979-06-01), Leland
patent: 4310022 (1982-01-01), Cohen
patent: 4848404 (1989-07-01), Hickok
patent: 4856557 (1989-08-01), Watson
patent: 4890645 (1990-01-01), Andersen
patent: 6167909 (2001-01-01), Davis
patent: 6276396 (2001-08-01), Kirkman
patent: 1 438 275 (1973-06-01), None
patent: 2 064 727 (1980-11-01), None
patent: 3041271 (1991-02-01), None

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