Impeller for centrifugal pumps

Details Impeller for centrifugal pumps Impeller for centrifugal pumps

1991-06-21

1993-03-09

Look, Edward K.

Fluid reaction surfaces (i.e., impellers)

Rotor having flow confining or deflecting web, shroud or...

Radially extending web or end plate

416223B, F04D 2922, F04D 2966

Patent

active

051921936

ABSTRACT:
A cavitation resistant impeller for liquid-conveying centrifugal pumps has a plurality of impeller vanes, each vane having, in combination, a leading inlet edge with a root portion extending upstream of its tip portion; a vane thickness that is greater upstream of the impeller throat than the vane thickness downstream of the impeller throat; and an elliptical nose on the leading inlet edge. The invention can be used in straight-vaned impellers or in Francis-type impellers.

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Palgrave and Cooper, Proceedings of the 3rd International Pump Symposium, Texas A & M University, May 1986, pp. 61-68.

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