Solid materials pump

Details Solid materials pump Solid materials pump

F - Mech Eng,Light,Heat,Weapons

04

D

103/102.1

F04D 29/00 (2006.01) F04D 7/04 (2006.01) F04D 29/22 (2006.01)

Patent

CA 1225877

Abstract A rotary pump is disclosed for pumping liquid and solid materials carried in suspension therein. The rotary pump comprises an impeller and a housing. The housing forms a swirl chamber and an impeller chamber for receiving the impeller. The impeller is mounted rotationally within the impeller chamber for rotation in a given rotational direction. The impeller comprises a surface exposed to the swirl chamber and disposed substantially outside the swirl chamber, and a plurality of pockets recessed in the exposed surface. Each of the recessed pockets comprises a blade surface having a curved surface. The curved surface redirects the pumped liquid thereabout as the impeller is rotated, whereby the liquid and suspended solid materials are formed into a swirling vortex of increased rotational velocity to substantially prevent the solid materials from striking and damaging the impeller.

470053

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