Automatic recirculation valve

Details Automatic recirculation valve Automatic recirculation valve

1987-06-26

1988-10-25

Schwadron, Martin P.

Fluid handling

Self-proportioning or correlating systems

Self-controlled branched flow systems

137504, 137508, F16K 1110

Patent

active

047796391

ABSTRACT:
An automatic recirculation valve is disclosed which utilizes three valve elements to accomplish particularly smooth and nondisruptive switching of fluid flow between main fluid flow and recirculation fluid flow. A unique back pressure control valve provides close control over changes in fluid pressure relative to fluid flow rate and functions to suppress erosion and cavitation of the bypass valve.

REFERENCES:
patent: 1215071 (1917-02-01), Steedman
patent: 1771413 (1930-07-01), McCune
patent: 2886058 (1959-05-01), Horton
patent: 4116212 (1978-09-01), Cooper
patent: 4243064 (1981-01-01), Nolte
patent: 4244388 (1981-01-01), Feiss
patent: 4638831 (1987-01-01), Lindgren

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