Bypass and unloader valve

Details Bypass and unloader valve Bypass and unloader valve

1977-04-25

1979-10-23

Cline, William R.

Fluid handling

Self-proportioning or correlating systems

Self-controlled branched flow systems

417311, F16K 1100, F16K 31363

Patent

active

041717082

ABSTRACT:
A bypass and unloader valve capable of operation as a full unloader valve or volume control for fluid pressure systems. The structure utilizes a valve body having an inlet, an outlet, and a bypass, with check valve means being provided to accommodate normal flow from the inlet to the outlet. When the pressure rises in the outlet, this pressure is applied against a reciprocatory plunger, and the force generated lifts the plunger, and a stem extension coupled to the plunger unseats a check valve, thereby opening a fluid path from the inlet to the bypass. Improved guide and sealing means are provided for the plunger and associated stem assembly, the plunger and stem being spring biased to accommodate normal flow.

REFERENCES:
patent: 516863 (1894-03-01), Gresham
patent: 2313351 (1943-03-01), Magnusen
patent: 2342001 (1944-02-01), Magnuson
patent: 3626812 (1971-12-01), Trick

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