Load responsive control valve

Details Load responsive control valve Load responsive control valve

1975-11-26

1979-05-08

Cohen, Irwin C.

Fluid handling

Systems

Supply and exhaust

91451, F15B 13042, F15B 1308

Patent

active

041530756

ABSTRACT:
A pressure compensated load responsive flow control valve for use in a system controlling a plurality of loads. The system is powered by a single, fixed displacement pump. The flow control valve is equipped with a load responsive control, which during simultaneous control of multiple loads automatically maintains the pump discharge pressure at a level higher than the pressure required by the largest load being controlled. To obtain unidirectional flow, load sensing passages of individual valve spools are connected by check valves with the load responsive control, which is capable of fast response, without large control leakage from the load sensing circuit, in the direction to reduce fluid flow supplied to the system loads.

REFERENCES:
patent: RE26028 (1966-05-01), Tennis
patent: 3025717 (1962-03-01), Christenson
patent: 3225781 (1965-12-01), Kruger et al.
patent: 3416561 (1968-12-01), Kokaly
patent: 3470694 (1969-10-01), Budzich
patent: 3488953 (1970-01-01), Haussler
patent: 3605806 (1971-09-01), Coatti
patent: 3878864 (1975-04-01), Schurger
patent: 3882896 (1975-05-01), Budzich
patent: 3977301 (1976-08-01), Kroth et al.
patent: 3989062 (1976-11-01), Tennis

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