Oil separation and return system for centrifugal refrigerant compressors
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United States of America Patent
Stats
-
Jul 22, 1980
Grant Date -
N/A
app pub date -
Nov 13, 1978
filing date -
Nov 13, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A refrigerant system with a high speed centrifugal compressor has an arrangement for promoting the continuous return of oil to gear and bearing housing 12 including a coalescing type filter 62 from which separated oil is passed to a jet pump 74, a thermostatically controlled expansion valve 50 operating at a low superheat value, and inwardly pumping shaft seals 26.
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