Proportional flow control valve

Details Proportional flow control valve Proportional flow control valve

1988-09-27

1989-12-26

Fox, John

Valves and valve actuation

Relatively movable valve elements form single port closure

137865, 137887, F16K 1100

Patent

active

048893170

ABSTRACT:
A valve for the proportioning of fluid flow between orifices (14,15) consists of a first cylinder (16) provided with a tapering circumferential groove (19) in its periphery, and a pair of cylinders (17,18) contacting the first cylinder respectively in the path between those orifices and a single orifice (13). The pair of cylinders (17,18) have tapered circumferential grooves (20,21) arranged so that rotation of the cylinders causes opening of one path and closing of the other.

REFERENCES:
patent: 620769 (1899-03-01), Hanson
patent: 1172388 (1916-02-01), Prescott
patent: 1609586 (1926-12-01), Thewes
patent: 3102710 (1963-09-01), Dresden

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