Centrifugal pumping apparatus
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United States of America Patent
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May 26, 1992
Grant Date -
N/A
app pub date -
Sep 7, 1990
filing date -
Sep 7, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A centrifugal pump for pumping gas containing fiber suspensions includes a centrifugal pumping chamber (54); a centrifugal impeller (60) rotatably mounted within the pumping chamber (54); a liquid ring vacuum pump with a vacuum pump chamber (76) adjacent the centrifugal pumping chamber which includes a radially vaned vacuum pump rotor (96) mounted for rotation therein; an intermediate wall (72) separating the centrifugal pumping chamber from the liquid ring vacuum pump; and a gas inlet (94) and gas outlet (80) within the intermediate wall on the same side of the liquid-ring pump.
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