Pressure ratio responsive unloader

Details Pressure ratio responsive unloader Pressure ratio responsive unloader

1991-12-06

1992-12-08

Bertsch, Richard A.

Pumps

With condition responsive pumped fluid control

Pressure responsive relief or bypass valve

F04B 4900

Patent

active

051692945

ABSTRACT:
A pressure ratio responsive valve is provided to control a discharge to suction bypass in a scroll compressor. The valve is acted on by suction pressure, discharge pressure and an intermediate pressure. When the compressor is operating at too high of a pressure ratio, the valve is opened to create a discharge to suction bypass.

REFERENCES:
patent: 4642034 (1987-02-01), Terauchi
patent: 4717314 (1988-01-01), Sato et al.

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