Regenerative turbine having predetermined clearance relationship

Details Regenerative turbine having predetermined clearance relationship Regenerative turbine having predetermined clearance relationship

1992-01-10

1993-06-01

Look, Edward K.

Rotary kinetic fluid motors or pumps

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

Turbine regenerative pump

415 551, F04D 2942

Patent

active

052154297

ABSTRACT:
A regenerative turbine pump apparatus which includes a housing having an inlet and an outlet and an impeller mounted for rotation within the housing. The impeller has an outer diameter and a channel ring is disposed around the impeller. The channel ring has a first arcuate portion that has a first radius to provide a substantially uniform first clearance with respect to the outer diameter of the impeller and the first arcuate portion extends throughout a major part of the channel ring. The channel ring includes a second arcuate portion proximate to the inlet having a second clearance with respect to the outer diameter of the impeller that is greater than the first clearance.

REFERENCES:
patent: 1920484 (1933-08-01), Siemen et al.
patent: 2015200 (1935-09-01), Spoor
patent: 3402669 (1968-09-01), Mamo
patent: 4586877 (1986-05-01), Watanabe et al.
patent: 4958984 (1990-09-01), Aoi et al.

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