Multiple four-way control valve

Details Multiple four-way control valve Multiple four-way control valve

1981-12-04

1983-06-21

Cohan, Alan

Fluid handling

Systems

Multi-way valve unit

13762569, 13762523, F16K 1107

Patent

active

043889492

ABSTRACT:
A multiple four-way control valve having a spool within a cylindrical bore defined in the valve housing with first and second pressure grooves defined around the cylindrical bore communicating with first and second pressure channels defined within the valve housing with an outlet port communicating into the cylindrical bore. An inlet port communicates with the cylindrical bore through a first and second relief channel which relief channels further communicate to first and second relief grooves. A first second, third and fourth slots are defined on the spool members adapted to align at various positions to elements of a first and second series of operation ports.

REFERENCES:
patent: 2547254 (1951-04-01), Braithwaite
patent: 2946144 (1960-07-01), Anderson
patent: 2953164 (1960-09-01), Haberland
patent: 3575212 (1971-04-01), Wilke

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