Fluid discharge valve

Details Fluid discharge valve Fluid discharge valve

1991-09-24

1992-05-12

Chambers, A. Michael

Valves and valve actuation

Fluid actuated or retarded

Piston type expansible chamber reciprocating valve actuator

251324, 251900, 277 27, F16K 100

Patent

active

051120267

ABSTRACT:
A valve which allows the rapid discharge of a fluid from a reservoir (13) to a working volume (12) includes a housing (10) and a cylindrical sleeve (14) movable axially within the housing between a closed position in which it separates the reservoir (13) from the working volume (12) and an open position in which the reservoir (13) communicates with the working volume (12). Sealing means (20, 21) are provided to prevent leakgage of the fluid when the sleeve is in the closed position. Actuating means are provided for moving the sleeve (14) between its two positions. The sealing means comprises seals (20, 21) located to engage one end (19) of the sleeve around the outer and inner peripheries respectively when the sleeve (14) is in the closed position. One seal (20) is forced into engagement with the sleeve (14) by the pressure of fluid in the reservoir (13) and the other seal (21) is forced into engagement with the sleeve (14) only when fluid pressure is applied by the actuating means to move the sleeve (14) from its closed position to its open position.

REFERENCES:
patent: 2621885 (1952-12-01), Schmitt
patent: 2778598 (1957-01-01), Bolling, Jr.
patent: 4167262 (1979-09-01), Lemmon
patent: 4173327 (1979-11-01), Williams

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