Unloading system for two-stage compressors

Details Unloading system for two-stage compressors Unloading system for two-stage compressors

1989-07-03

1990-07-03

Tanner, Harry B.

Refrigeration

Processes

Compressing, condensing and evaporating

621962, 62197, 622285, F25B 4104

Patent

active

049380290

ABSTRACT:
An economizer is connected to a fluid line connecting the first and second stages of a compressor at a point downstream of the bypass for unloading the first stage. The economizer flow controls the discharge temperature of the second stage and, in addition, coacts with the bypassing of the first stage such that all of the flow supplied to the second stage is at system suction pressure when the bypass is fully open.

REFERENCES:
patent: 2388556 (1945-11-01), Lathrop
patent: 3495418 (1970-02-01), Kapich
patent: 3859815 (1975-01-01), Kasahara
patent: 4324105 (1982-04-01), Cann
patent: 4526012 (1985-07-01), Chigira

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