Toric pump

Details Toric pump Toric pump

F - Mech Eng,Light,Heat,Weapons

04

D

F04D 1/00 (2006.01) F04D 29/70 (2006.01)

Patent

CA 2159650

A regenerative toric pump in which undesirable noise generation and leakage through clearance gaps between the impeller and housing is minimized includes an impeller having vanes lying in general planes radiating from the impeller axis disposed at variable spacings from each other in a geometrically balanced pattern. Recesses in one of opposed side surfaces on the impeller and housing are arranged in a pattern such as to minimize leakage through the clearance gap between those surfaces from points in the pump chamber which are at different pressures.

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