Toric pump

Details Toric pump Toric pump

1992-11-03

1994-04-12

Look, Edward K.

Rotary kinetic fluid motors or pumps

With means for re-entry of working fluid to blade set

Turbine regenerative pump

415 554, 415119, 416203, 416223A, 416228, 416236A, F01D 112

Patent

active

053020812

ABSTRACT:
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.

REFERENCES:
patent: 3951567 (1976-04-01), Rohs
patent: 4243800 (1981-03-01), Segawa et al.
patent: 4306833 (1981-12-01), Sixsmith et al.
patent: 4474534 (1984-10-01), Thode
patent: 4854830 (1989-08-01), Kozawa et al.
patent: 4923365 (1990-05-01), Rollwage
patent: 5017086 (1991-05-01), Hansen
patent: 5163810 (1992-11-01), Smith

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