Cavitation-resistant inducer

Details Cavitation-resistant inducer Cavitation-resistant inducer

1988-03-29

1989-06-13

Garrett, Robert E.

Rotary kinetic fluid motors or pumps

Plural runners having different type flow paths

4151996, 4152181, F04D 2968

Patent

active

048387592

ABSTRACT:
An improvement in an inducer for a pump wherein the inducer includes a hub, a plurality of radially extending substantially helical blades and a wall member extending about and encompassing an outer periphery of the blades. The improvement comprises forming adjacent pairs of blades and the hub to provide a substantially rectangular cross-sectional flow area which cross-sectional flow area decreases from the inlet end of the inducer to a discharge end of the inducer, resulting in increased inducer efficiency improved suction performance, reduced susceptibility to cavitation, reduced susceptibility to hub separation and reduced fabrication costs.

REFERENCES:
patent: 1910443 (1933-05-01), Mobley
patent: 2991927 (1961-07-01), Quick
patent: 3936225 (1976-02-01), Stjernstrom
patent: 4097186 (1978-06-01), Budris
patent: 4111597 (1978-09-01), Grossi et al.

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