Adjustable vane centrifugal pump impeller construction

Details Adjustable vane centrifugal pump impeller construction Adjustable vane centrifugal pump impeller construction

1977-04-14

1979-02-13

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Radially extensible or retractible rotor working member

416143, 416186A, 416207, 416208, F04D 2924

Patent

active

041393309

ABSTRACT:
An adjustable centrifugal impeller including a hub, a plurality of elongated vanes located circumferentially on the hub with each of the vanes having inner and outer portions, an annular ring mounted for circumferential sliding movement on the hub, first fasteners extending directly between the inner portions of the vanes and the annular ring for fastening the inner portions of the vanes directly to the hub, and second fasteners extending directly between each of the outer portions of the vanes and the hub for fastening the outer portions directly to the hub, and a plurality of locations on the vanes for receiving the second fasteners to thereby adjust the positions of the vanes on the hub, each of the vanes having a flat face which bears against flat faces of the annular ring and the hub to provide a rigid connection therewith through full face-to-face contact of the overlapping parts.

REFERENCES:
patent: 1427391 (1922-08-01), Johns
patent: 2950686 (1960-08-01), Ledel et al.
patent: 3131956 (1964-05-01), Bailey

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