Combination valve for screw compressors

Details Combination valve for screw compressors Combination valve for screw compressors

1997-01-06

1998-09-15

Freay, Charles G.

Pumps

With condition responsive pumped fluid control

Pressure responsive relief or bypass valve

417308, 417301, 417310, 1374933, 1374936, F04B 4900

Patent

active

058070818

ABSTRACT:
Normally closed valve structure is located in a fluid path between the suction and discharge sides of a compressor. The valve structure opens upon a small pressure differential when the higher pressure is in the normal suction side which is indicative of reverse operation. Additionally, relief valve structure opens when the discharge pressure becomes excessive.

REFERENCES:
patent: 4560330 (1985-12-01), Murayama et al.
patent: 5125323 (1992-06-01), Yonezawa

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