Centrifugal pump bearing arrangement

Details Centrifugal pump bearing arrangement Centrifugal pump bearing arrangement

1988-02-29

1989-10-03

Croyle, Carlton R.

Pumps

Motor driven

Electric or magnetic motor

417365, 417366, 415175, F04B 3902

Patent

active

048713015

ABSTRACT:
A centrifugal pump of the "sealless" type including a casing containing a pumping chamber, inlet and outlet, and an impeller mounted on a shaft supported by an independent bearing system. The impeller shaft is driven by a motor located outside of the casing through a set of magnets located on the opposite sides of the wall of the casing and magnetically interconnected together with the motor driving the magnets located on the outside of the casing and with magnets located on the inside of the casing being connected to and driving the pump impeller. The bearing system includes a lubricating system which in some cases will use the pumped fluid as a lubricant and coolant.

REFERENCES:
patent: 3420184 (1969-01-01), Englesberg et al.
patent: 4013384 (1977-03-01), Oikawa
patent: 4047847 (1977-09-01), Oikawa
patent: 4080112 (1978-03-01), Zimmermann
patent: 4722661 (1988-02-01), Mizuno

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