Manifold arrangement for isolating a non-operating compressor

Details Manifold arrangement for isolating a non-operating compressor Manifold arrangement for isolating a non-operating compressor

1986-11-24

1988-05-03

Freeh, William L.

Pumps

With condition responsive pumped fluid control

Inlet throttle or stop valve

417427, F04B 4106, F04B 4902

Patent

active

047416742

ABSTRACT:
In a system with parallel connected compressors, a suction and discharge manifold arrangement for isolating an inactive compressor from the rest of the operating system. A check valve in the discharge line of the compressor prevents fluid flow back into the discharge port from a common system discharge line when the compressor is de-energized. A normally closed, pressure actuated valve in the suction line of each compressor prevents fluid from flowing through the compressor suction port when the compressor is inactive. The valve is connected to the compressor's discharge line, and opens in response to the discharge pressure developed when the compressor begins to operate. Pressure and oil level equalizing lines interconnect the compressor oil sumps, conveying oil between compressors and equalizing pressure in the oil sumps.

REFERENCES:
patent: 1948907 (1934-02-01), Egli
patent: 2178100 (1937-05-01), Gygax
patent: 2294552 (1937-05-01), Gygax
patent: 3884251 (1974-05-01), Knight
patent: 4179248 (1979-12-01), Shaw
patent: 4586351 (1986-05-01), Igarashi

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