Liquid ring pump with conical or cylindrical port member
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United States of America Patent
Stats
-
Feb 12, 1985
Grant Date -
N/A
app pub date -
Aug 8, 1983
filing date -
Aug 8, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A liquid ring pump with a conical or cylindrical port member has a vent-recirculation port in the port member in addition to the conventional intake and discharge ports. The vent-recirculation port communicates with the compression zone of the pump and is connected to a reservoir of pumping liquid maintained in the discharge portion of the pump head. When the pump is operating at relatively low compression ratios, the vent-recirculation port acts as a vent to prevent overcompression of the gas in the pump. At relatively high compression ratios, the vent-recirculation port recirculates pumping liquid from the reservoir, thereby increasing the maximum attainable compression ratio.
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