Pumps – With condition responsive pumped fluid control – Pressure responsive relief or bypass valve
Patent
1974-09-11
1976-08-17
Weakley, Harold W.
Pumps
With condition responsive pumped fluid control
Pressure responsive relief or bypass valve
137115, 137508, F04B 4900
Patent
active
039751163
ABSTRACT:
A fluid valve assembly suitable for a number of different uses, including use as a fluid pressure regulator for a pump whose output pressure is to be kept uniform for changing load conditions. The assembly includes a housing, a pair of relatively shiftable valve members in the housing, and means biasing the valve members together. Each valve member has a face which is contiguous to the corresponding face of the other members. One of the valve members has a central orifice therethrough and its face surrounds the orifice to present a land having a length from the orifice to the outer periphery of its corresponding face greater than the diameter of the orifice. The face of a first of the valve members is preferably tapered to present a transversely wedge-shaped space between said faces to facilitate separation of the valve member to open the valve formed thereby. The housing has a fluid inlet in communication with the region surrounding the valve members and a fluid outlet communicating with said orifice.
REFERENCES:
patent: 1196142 (1916-08-01), Schroeder
patent: 1330458 (1920-02-01), Young
patent: 2938540 (1960-05-01), Schatzman
patent: 3360952 (1968-01-01), Lewis
Bergstedt Donald C.
Feild Eugene P.
FNB Products, Inc.
Weakley Harold W.
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