Flow rate control valve

Details Flow rate control valve Flow rate control valve

1994-02-24

1995-04-18

Hepperle, Stephen M.

Fluid handling

Line condition change responsive valves

With separate connected fluid reactor surface

25112903, F16K 3110, F16K 31365

Patent

active

054069750

ABSTRACT:
A flow rate control valve reduced in size and improved in mountability has a structure comprising a communicating passage which has openings on opposite ends and includes valve seats which surround the respective openings, an outflow port which communicates with an intermediate portion of the communicating passage, a first valve disk disposed at a corresponding position to one of the valve seats, a diaphragm connected to the first valve disk, a diaphragm chamber formed on one side of the diaphragm, a spring which urges the first valve disk in the valve closing direction, a second valve disk disposed at a corresponding position to the other valve seat, an electromagnetic solenoid which opens/closes the second valve disk, a valve chamber formed around the second valve disk, and an inflow port which communicates with the diaphragm chamber and the valve chamber.

REFERENCES:
patent: 2217141 (1940-10-01), Sprenkle
patent: 3035774 (1962-05-01), Ray
patent: 3442287 (1969-05-01), Ray
patent: 3810489 (1974-05-01), MacManus et al.
patent: 3994356 (1976-11-01), Smitley
patent: 4180241 (1979-12-01), Fiedler
patent: 4267947 (1981-05-01), Wasserstrom
patent: 4287909 (1981-09-01), Tompson et al.

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