Filling and exhaust valve for the control of the hydraulic flow

Details Filling and exhaust valve for the control of the hydraulic flow Filling and exhaust valve for the control of the hydraulic flow

1979-08-27

1981-12-29

Michalsky, Gerald A.

Motors: expansible chamber type

With motive fluid valve

With ambient fluid inlet valve to expanding working chamber

251 634, 251 636, 251 83, F15B 1304, F15B 1102

Patent

active

043076548

ABSTRACT:
An improved filling and discharge valve for use with a hydraulic cylinder is provided, the valve comprising a valve body having a first chamber therein supporting a spring-biased main valve piston having an extending portion containing a chamber in which a second spring-biased valve is supported, the valves operationally being interdependent and being capable of being coupled to a hydraulic cylinder so as to control the flow of oil from oil-storage means to said hydraulic cylinder and back to said oil-storage means according to a pre-determined working cycle. Control valves and switches are provided to control the operation of the filling and discharge valve.

REFERENCES:
patent: 3477466 (1969-11-01), Sturm

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