Exhaust valve for a gas expansion system

Details Exhaust valve for a gas expansion system Exhaust valve for a gas expansion system

1991-07-11

1993-05-18

Chambers, A. Michael

Valves and valve actuation

With snap action

25112919, 25112922, 251284, F16K 3144

Patent

active

052113728

ABSTRACT:
A exhaust valve for use in a cryogenic gas expansion system which uses a non-metallic valve seat and a metallic valve disk assembly which is moved into and out of contact with the valve seat to close and open the valve, respectively. The valve disk assembly has a valve disk element, a number of spring elements, and a ring element, all of which are integrally formed from a single metallic sheet. The valve disk element moves with a non-linear, snap action movement which movement is controlled by a cryogenic solenoid. When the disk element is moved out of seated contact with the valve seat and reaches a position just past the point at which the snap action has commenced, the movement is limited by a stop element so that the force, and hence the solenoid current, required to hold the valve open at that position is minimized.

REFERENCES:
patent: 2625437 (1953-01-01), Huntington
patent: 2681177 (1954-06-01), Hartwell
patent: 3417768 (1968-12-01), Wasson
patent: 3921670 (1975-11-01), Clippard, Jr. et al.
patent: 4203554 (1980-05-01), Zimmer et al.
patent: 4911405 (1990-03-01), Weissgerber

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