Fluid flow control device

Details Fluid flow control device Fluid flow control device

1989-07-24

1990-05-08

Nilson, Robert G.

Fluid handling

Line condition change responsive valves

With separate connected fluid reactor surface

13750525, 137508, 137859, F16K 1514

Patent

active

049229559

ABSTRACT:
A fluid flow control device, comprises a displaceable valve member disposed within a chamber and including an inlet valve element on one side facing an inlet valve opening and movable to open and closed positions with respect thereto, an outlet valve element on the opposite side facing an outlet valve opening and movable to open and closed positions with respect thereto, a substantially rigid connection between the two valve elements, and a passageway extending through the rigid connection and the two valve elements. The outlet valve opening and the outlet valve element are larger than the inlet valve opening and inlet valve element, respectively, such that the fluid flow control device permits fluid flow only in the direction of the inlet to the outlet, and produces a reduction in pressure between the inlet and outlet having a constant ratio depending on the ratio of the areas of the inlet and outlet diaphragms.

REFERENCES:
patent: 2935083 (1960-05-01), Singer
patent: 3196901 (1965-07-01), Phillips
patent: 3545485 (1970-12-01), Clark
patent: 4129143 (1978-12-01), Hoffmann

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