Centrifugal pump with centripetal inducer

Details Centrifugal pump with centripetal inducer Centrifugal pump with centripetal inducer

1977-04-21

1978-09-05

Croyle, Carlton R.

Rotary kinetic fluid motors or pumps

Plural runners having different type flow paths

4151996, 416183, F04D 102, F04D 1714, F04D 2944

Patent

active

041115970

ABSTRACT:
A centrifugal pump having a casing with a medially disposed partition for defining therein a flow chamber on one side of the partition and a pumping chamber on the other side thereof, said flow chamber having a side inlet for fluid to be pumped and said pumping chamber having an outlet for pumped fluid. The partition has a generally disposed central opening therethrough to provide communication between the flow chamber and the pumping chamber and said flow chamber forms a fluid flow path from the side inlet to the opening in said partition of generally curvilinear shape which is spaced from and about the axial line of the pump. A driven shaft is rotatably mounted in the axial line of the pump. One end of said driven shaft is connected to suitable driving means and the other end extends into the pumping chamber and the flow chamber to permit an impeller in the pumping chamber and an inducer in the flow chamber respectively to be connected and rotated with the shaft, the inducer being disposed on the upstream side of the impeller. The impeller has a centrally disposed suction inlet in the central opening of the partition and the inducer has a plurality of spaced vane elements forming vane passages therebetween which vane passages have an inlet end in communication with the curvilinear flow path defined by said flow chamber and a generally axially disposed outlet means in communication with the suction inlet for the impeller whereby on rotation of the shaft the inducer will engage the fluid in the flow chamber counter to the direction of fluid flow therethrough and by centripetal and turning action thereon the fluid changes from a transverse or radially inward flow direction to an axial substantially straight flow direction into the suction inlet for the impeller.

REFERENCES:
patent: 718557 (1903-01-01), Wenzel
patent: 1406868 (1922-02-01), Jensen
patent: 2027015 (1936-01-01), Bell
patent: 2395704 (1946-02-01), Wislicenus
patent: 2429978 (1947-11-01), Blanchard
patent: 2498143 (1950-02-01), Struckmann
patent: 3522997 (1970-08-01), Rylewski
patent: 3817653 (1974-06-01), Onal

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