Pressure control valve assembly for hydraulic circuit and automo

Details Pressure control valve assembly for hydraulic circuit and automo Pressure control valve assembly for hydraulic circuit and automo

1992-03-06

1994-02-08

Michalsky, Gerald A.

Motor vehicles

Including one or more ski-like or runner members

With at least one surface-engaging propulsion element

91429, 137330, 137544, 13762565, 180142, F15B 13044

Patent

active

052842207

ABSTRACT:
In a pressure control valve, a filter member is disposed in a feedback path for feeding back fluid pressure in the corresponding control port to a pilot chamber for feedback controlling a position of the valve spool in cooperation with an electric or electromagnetic actuator. The filter member is so arranged as to remove foreign matter. The filter member also serves for regulating fluid flow in the feedback path.

REFERENCES:
patent: 2734523 (1956-02-01), Wiggans
patent: 3029830 (1962-04-01), Klover et al.
patent: 3209782 (1965-10-01), Wolpin et al.
patent: 4396037 (1983-08-01), Wilcox
patent: 4406307 (1983-09-01), Loup et al.
patent: 4478250 (1984-10-01), Lukasczyk et al.
patent: 4643225 (1987-02-01), Imhof
patent: 4662605 (1987-05-01), Garcia
patent: 4778147 (1988-10-01), Kozuka et al.
patent: 4781262 (1988-11-01), Nakamura et al.
patent: 4821773 (1989-04-01), Herion et al.
patent: 4832082 (1989-05-01), Hirata et al.

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