Fluid handling – Line condition change responsive valves – With separate connected fluid reactor surface
Patent
1988-05-18
1990-01-02
Hepperle, Stephen M.
Fluid handling
Line condition change responsive valves
With separate connected fluid reactor surface
137241, F16K 31365
Patent
active
048906395
ABSTRACT:
A device is provided for regulating the pressure of a liquid flow. The device includes two housing portions having open ends in mating engagement between which a flexible membrane, which hermetically seals the open ends, is maintained. Thus, one of the housing portions defines a first chamber into and through which the liquid to be regulated flows and the other defines a second chamber into which regulating fluid is provided. A two-portion guided elongated pin, movable in a reciprocal manner along its longitudinal axis, extends from an outlet orifice of the first chamber to a linearly aligned second chamber bore. The two portions of the pin converge at the membrane and are coupled by a male-female coupling and grip the membrane. In operation of the device, the pin, which has a hollowed portion abutting the outlet orifice, is moved by reason of pressure effected on active surfaces of the membrane and opens and closes the outlet orifice. The device is embodied such that the active surface of the membrane affected by a pressure of a regulating fluid is larger than the active surface of the membrane affected by the pressure of the liquid to be flow-regulated.
REFERENCES:
patent: 1346921 (1920-07-01), Terry
patent: 2011812 (1935-08-01), Hatcher et al.
patent: 2335250 (1943-11-01), Adlam
patent: 2622610 (1952-12-01), Rowe et al.
patent: 3583440 (1981-06-01), Andersson
patent: 4238447 (1980-12-01), Wolff
patent: 4239730 (1980-12-01), Fahlvik et al.
Loliger Willi
Schmied Rudolf
Hepperle Stephen M.
Nestec S. A.
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