Centrifugal pump

Details Centrifugal pump Centrifugal pump

1996-05-22

1998-07-14

Kwon, John T.

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Casing having tangential inlet or outlet

F04D 2944

Patent

active

057794448

ABSTRACT:
A centrifugal pump comprises a hollow pump body. An impeller is rotatably installed in a pump chamber defined in the pump body. The impeller has a front side facing a major part of the pump chamber and a rear side facing a bottom wall of the pump chamber. The hollow pump body has both a water discharge passage and a water discharge port formed therein. A water guide ridge is positioned between the pump chamber and the water discharge passage to smooth a water flow from the pump chamber toward the water discharge port. The water guide ridge extends upstream in the water discharge passage and projects from the inner wall toward the major part of the pump chamber. The water guide ridge has an upstream end portion sloped. With this sloped upstream end portion, undesired cavitation in the pump is suppressed or at least minimized.

REFERENCES:
patent: 2380606 (1945-07-01), Moody

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