High pressure shut-off valve

Details High pressure shut-off valve High pressure shut-off valve

1997-12-17

2000-09-26

Rivell, John

Fluid handling

Line condition change responsive valves

Direct response valves

13753311, 137534, F16K 1504

Patent

active

061231029

ABSTRACT:
In a high-pressure shut-off valve, in particular for a hydraulic pressure system having a relatively high liquid delivery rate, the pressure device of the valve body has a plurality of back support rings arranged as a stack and moveable essentially in the axial direction, i.e., in the direction of the shut-off pressure, forces the valve body onto the valve seat, such that neighboring back support rings bear against one another, causing the valve body to lift from the valve seat, whereas in the shut-off position, the neighboring back support rings inside the hydraulic system, which is under a relatively high shut-off pressure, are at a slight spacing from one another.

REFERENCES:
patent: 3260279 (1966-07-01), Liebmann
patent: 3525358 (1970-08-01), Ludwig
patent: 3746038 (1973-07-01), Simmons
patent: 4736768 (1988-04-01), Tsubouchi et al.
patent: 4991495 (1991-02-01), Loegel, Sr. et al.
patent: 5012867 (1991-05-01), Kilgore
patent: 5065790 (1991-11-01), Kornas
patent: 5178184 (1993-01-01), Skillman

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