Liquid directional control valve

Details Liquid directional control valve Liquid directional control valve

1990-03-16

1990-11-27

Rivell, John

Fluid handling

Systems

Multi-way valve unit

13762547, 251314, F16K 504

Patent

active

049728768

ABSTRACT:
In a liquid directional control valve, a hollow rotary valve element is accommodated in a valve chamber for angular movement about a rotary axis of the rotary valve element. The rotary valve element has first, second and third openings. A liquid passageway formed by the rotary valve element is simple in construction. First seal elements are arranged about first, second and third outlet ports formed in the valve chamber and in close contact with an outer circumferential surface of the rotary valve element. A pair of circumferential grooves are provided respectively in outer circumferential surface sections of respective both ends of the rotary valve element. Each of the pair of grooves has a sloped bottom. A pair of second annular seal element are arranged respectively in the pair of circumferential grooves in concentric relation thereto.

REFERENCES:
patent: 2439515 (1948-04-01), Hodgson
patent: 3133701 (1964-05-01), McClenahan
patent: 3134403 (1964-05-01), Rudelick
patent: 3531084 (1970-09-01), Hendrix
patent: 3630231 (1971-12-01), Miller
patent: 3750704 (1973-08-01), Burke et al.
patent: 3788355 (1974-01-01), Wood
patent: 4285365 (1981-08-01), Coats et al.

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