Regenerative pump and method of manufacturing impeller

Details Regenerative pump and method of manufacturing impeller Regenerative pump and method of manufacturing impeller

1993-12-06

1995-04-18

Kwon, John T.

Rotary kinetic fluid motors or pumps

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

Turbine regenerative pump

F04D 1706

Patent

active

054073189

ABSTRACT:
A regenerative pump according to the present invention includes a rotatable impeller disposed in a housing. The impeller has a plurality of radially extending vane members spaced apart about a periphery of the impeller. Each vane member has circumferentially-facing upstream and downstream surfaces, relative to an operational direction of impeller rotation. At least one of the upstream and downstream surfaces of each vane member has a proximal portion which is inclined or curved away from the operational rotation direction, and a distal portion which is inclined or curved towards the operational rotation direction. The curved/inclined surface advantageously enhances pump efficiency.

REFERENCES:
patent: 2042499 (1936-06-01), Brady
patent: 3359908 (1967-12-01), Toma
patent: 3734697 (1973-05-01), Sieghartner
patent: 4493620 (1985-01-01), Takei et al.
patent: 5123809 (1992-06-01), Ito
Patent Abstract of Japan, vol. 6 No. 167(M-153)(1045) Aug. 1982 JP-A 57 81191.

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