Rotary pump with ventilated chamber
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United States of America Patent
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-
Jan 2, 2001
Grant Date -
N/A
app pub date -
Feb 4, 1999
filing date -
Feb 7, 1998
priority date (Note) -
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Abstract
Centrifugal pump with a pump chamber (18) housing a radial impeller (20) and aspiration port arranged coaxially with the radial impeller, and at least one ventilating conduit (26) that leads from the inner radial area of the pump chamber to the outside, wherein the outer circumferential edge of the pump chamber (18) is fitted with interference contours (32) that are essentially directed tangentially to swirl the liquid flow.
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