Control valve and hydraulic system employing same

Details Control valve and hydraulic system employing same Control valve and hydraulic system employing same

1983-03-28

1985-12-10

Richter, Sheldon J.

Motors: expansible chamber type

With motive fluid valve

Relatively movable serial valves

91448, 91454, 91469, 137102, F15B 1108, F15B 1304

Patent

active

045571805

ABSTRACT:
The valve disclosed herein functions, in one sense, as a flow matching device and, in another sense, as a reciprocative check valve. By employing the valve, a hydraulic system may be implemented in which filling and emptying of a variable volume load, such as a hydraulic piston may be accomplished through a single check valve structure at controlled flow rates.

REFERENCES:
patent: 2702044 (1955-02-01), Johnston
patent: 2858840 (1958-11-01), Wright, Jr.
patent: 3492052 (1970-01-01), Klimek
patent: 3638530 (1972-02-01), Hollister
patent: 4278010 (1981-07-01), Wallischeck et al.

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