Pressure control valve

Details Pressure control valve Pressure control valve

1974-09-25

1976-02-10

Schwadron, Martin P.

Fluid handling

Self-proportioning or correlating systems

Self-controlled branched flow systems

137118, G05D 1103

Patent

active

039372430

ABSTRACT:
A valve for controlling the outlet pressure of a pump which supplies two systems. The valve permits flow through a first regulating portion to the primary system at a pressure equal to the secondary system pressure requirement. The secondary system preferably includes an accumulator and has an upper pressure requirement which is attained when the accumulator is filled. A second regulating portion of the control valve responds to secondary system pressure to permit bypassing of the first regulating portion when the secondary systems upper pressure requirement is satisfied. The second regulating portion closes when the lower limit is reached to permit refilling of the accumulator.

REFERENCES:
patent: 3024732 (1962-03-01), Nyman
patent: 3270763 (1966-09-01), Kiefer
patent: 3640301 (1972-02-01), Jania
patent: 3817266 (1974-06-01), Dymond

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