Seal-free impeller pump for fluids containing abrasive...

Details Seal-free impeller pump for fluids containing abrasive... Seal-free impeller pump for fluids containing abrasive...

F - Mech Eng,Light,Heat,Weapons

04

D

103/105

F04D 7/04 (2006.01)

Patent

CA 1170907

ABSTRACT OF THE DISCLOSURE A submersible impeller pump capable of pumping fluids carrying materials such as sand, stones, sewage, and which requires little or no maintenance is provided. The pump includes a housing having an impeller unit including arcuate vanes, eccentrically mounted therein, the impeller having a pair of circular expeller faces on each side of the arc-shaped vanes, in order to effect water seals within the pump housing, to eliminate the need for mechanical seals. Thus, only the motor driving the pump need be sealed, when submersed, the pump itself requiring no critical bearings or seals.

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