Pumping stage for multi-stage centrifugal pump

Details Pumping stage for multi-stage centrifugal pump Pumping stage for multi-stage centrifugal pump

1979-06-21

1981-07-14

Smith, Leonard E.

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Plural rigidly related blade sets

415213R, 415501, 416186R, F04D 106, F04D 1310, F04D 2924

Patent

active

042783992

ABSTRACT:
An improved diffusion bowl and pumping vanes of a centrifugal pump stage are employed in axially stacked, multi-stage pumps for use in oil wells. The wall thickness of the annular casing portion of the diffusion bowl element is reduced to a minimum consistent with the axial loading on the pump stage and the impeller vanes are radially extended to terminate closely adjacent the minimum wall thickness portion of the casing, thereby significantly increasing the pumping pressure developed by the stage without reducing the efficiency of the stage.

REFERENCES:
patent: 1974107 (1934-09-01), Hait
patent: 2978989 (1961-04-01), Lung
patent: 3250458 (1966-05-01), Caldwell
patent: 3265001 (1966-08-01), Deters
patent: 3807894 (1974-04-01), O'Rourke

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