Hydraulic valves

Details Hydraulic valves Hydraulic valves

1975-11-14

1977-03-22

Cohan, Alan

Fluid handling

Line condition change responsive valves

Pilot or servo controlled

137493, F16K 710

Patent

active

040130932

ABSTRACT:
A valve which may operate as either a check valve or a relief valve includes a chamber which is connected to a first hydraulic conduit by a restricted passage. A relief valve vents the chamber at a predetermined pressure to unbalance the valve member and allow fluid to flow from the first conduit to a second. The valve member is made with a telescoping portion to allow reverse flow when the first conduit is at a lower pressure than the second.

REFERENCES:
patent: 3090398 (1963-05-01), Adams
patent: 3268220 (1966-08-01), Williamson
patent: 3710824 (1973-01-01), Luhbauer
patent: 3783891 (1974-01-01), Christianson

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