Power transmission

Details Power transmission Power transmission

1980-02-04

1982-12-28

Cohan, Alan

Fluid handling

Line condition change responsive valves

Pilot or servo controlled

137492, 137495, F16K 31383

Patent

active

043656471

ABSTRACT:
A multifunction hydraulic flow metering valve and a circuit therefore comprising a main valve, a bleed flow orifice, and a servo valve acting with the main valve provides for proportional speed control for lowering loads and as an anti-cavitation check valve. A pilot valve in the circuit acting with the main valve provides the circuit with a pressure limiting relief valve.

REFERENCES:
patent: 2043453 (1936-06-01), Vickers
patent: 2737974 (1956-03-01), Renick
patent: 2805038 (1957-09-01), Towler
patent: 3410304 (1968-11-01), Paul
patent: 3809201 (1974-05-01), Miyanishi
patent: 4138928 (1979-02-01), Peterson
patent: 4172466 (1979-10-01), Pattarini
patent: 4201052 (1980-05-01), Breeden et al.
patent: 4237920 (1980-12-01), Norman

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