Control valve with flow control means

Details Control valve with flow control means Control valve with flow control means

1972-10-30

1979-12-18

Michalsky, Gerald A.

Fluid handling

Systems

Supply and exhaust

60462, 91436, 91446, 91452, 1375961, F15B 1302

Patent

active

041789628

ABSTRACT:
An open center type control valve for a hydraulic motor, wherein pressure fluid from a source is caused to flow from the valve inlet to a motor port at a substantially uniformly metered rate despite fluctuations in the load on the governed fluid motor, due to the operation of a flow control mechanism which regulates bypass of excess fluid through the open center passage to the valve outlet in accordance with variations in the pressure differential between the inlet and outlet end portions of the open center passage.

REFERENCES:
patent: 2255787 (1941-09-01), Kendrick
patent: 2837107 (1958-06-01), Rockwell
patent: 2965133 (1960-12-01), Rice et al.
patent: 3145734 (1964-08-01), Lee et al.
patent: 3229717 (1966-01-01), Rice
patent: 3304953 (1967-02-01), Wickline et al.
patent: 3488953 (1970-01-01), Haussler
patent: 3613711 (1971-10-01), Wilke
patent: 3675676 (1972-07-01), O'Conner et al.
patent: 3771558 (1973-11-01), Ailshie
patent: 3788077 (1974-01-01), Johnson
patent: 4139021 (1979-02-01), Ailshie et al.

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