Hydraulic valve

Details Hydraulic valve Hydraulic valve

1980-07-24

1983-10-25

Rosenthal, Arnold

Fluid handling

Line condition change responsive valves

Pilot or servo controlled

137117, 251 30, F16K 3106, F16K 31143, F15B 1316

Patent

active

044112890

ABSTRACT:
A pilot actuated hydraulic control valve has a flow setting member in the form of a valve piston an end of which co-operates with radial outlet ports of the valve to form a variable metering orifice. A flow sensor provides a feedback differential pressure proportional to the flow through the valve and that feedback differential is used to control a pilot stage which actuates the flow setting member.

REFERENCES:
patent: 3038498 (1962-06-01), Seavey
patent: 3874269 (1975-04-01), Walters

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