Centrifugal pump
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United States of America Patent
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Apr 16, 1991
Grant Date -
N/A
app pub date -
Aug 4, 1989
filing date -
Dec 15, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A centrifugal pump for accommodating entrained gas and vapor at low absolute suction pressures includes an impeller with a central inlet chamber. The impeller has a peripheral wall which is concentric with the impeller's axis; and, at least one passage extends outwardly from an inlet port in the peripheral wall to an exit port radially spaced from the chamber. Preferably, the pump includes a stationary inlet port device located within the central inlet chamber for separating the spinning impeller from incoming fluid.
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