Abrasion resistant centrifugal pump

Details Abrasion resistant centrifugal pump Abrasion resistant centrifugal pump

1997-01-17

1998-03-03

Verdier, Christopher

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Plural rigidly related blade sets

415229, 415901, 417365, 41742312, 4174241, F04D 2904, F04D 2944, F04D 2966

Patent

active

057228124

ABSTRACT:
A centrifugal well pump has modules of pumping stages, each module having a separate thrust bearing. The thrust bearing for each module is supported by an uppermost diffuser of the module. A thrust runner rotates with the shaft and engages the stationary thrust bearing. A tension member engages the runner and extends downward through the stages. The tension member has a number of upward facing load shoulders, one for each impeller within the module. Each of the load shoulders supports the hub of one of the impellers. Downthrust on each impeller transfers through the load shoulder to the tension member, and from there to the thrust runner.

REFERENCES:
patent: 1798787 (1931-03-01), Conant
patent: 3171355 (1965-03-01), Harris et al.
patent: 4678399 (1987-07-01), Vandevier et al.
patent: 4741668 (1988-05-01), Bearden
patent: 4781531 (1988-11-01), James
patent: 4838758 (1989-06-01), Sheth
patent: 4872808 (1989-10-01), Wilson
patent: 5033937 (1991-07-01), Wilson
patent: 5160240 (1992-11-01), Wilson
Centrilift "San Handler" Abrasion Resistant Pumps Brochure, dated Jan. 23, 1991 as Plaintiff's Deposition Exhibit.

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