Oil equalization system for refrigeration compressors
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United States of America Patent
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-
Nov 12, 1985
Grant Date -
N/A
app pub date -
Nov 30, 1984
filing date -
Nov 30, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A lubricant distribution system for refrigeration units having a plurality of parallel compressors which system maintains the proper level of lubricant in the compressors during operation. The system comprises compressor suction inlet lines which connect each of the compressors of the system with a common suction header located at an elevation below the suction inlets on the compressors. The common suction header is connected to the evaporator outlet by a conduit which extends from the evaporator to the common suction header. The compressors suction inlet lines are sized to provide a suction gas mass velocity therethrough which is sufficient to carry lubricant into the compressors as an entrained liquid even when the compressors are operating at partial capacity.
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