Motor-driven pump

Details Motor-driven pump Motor-driven pump

1993-01-13

1995-04-18

Bertsch, Richard A.

Pumps

Motor driven

Electric or magnetic motor

41742312, F04B 1703

Patent

active

054073316

ABSTRACT:
An integrated motor-driven pump includes an electromagnet disposed in the pump casing opposite a magnet mounted to an impeller of the pump. The impeller is rotatably supported within the casing, and is rotated by inducing a repulsion force in the magnet. In addition, a bearing rotatably supporting the impeller is provided in a portion of the casing formed with a flow passageway which leads working fluid handled by the pump flow to both sides of the bearing so that the bearing can be lubricated and cooled by the working fluid.

REFERENCES:
patent: 2109679 (1938-03-01), Neveling
patent: 2782721 (1957-02-01), White
patent: 2847936 (1958-08-01), Richter
patent: 3364866 (1968-01-01), Sato
patent: 3512788 (1970-05-01), Kilbane
patent: 3513942 (1970-05-01), Sato
patent: 3826938 (1974-07-01), Filer
patent: 3932069 (1976-01-01), Giardini et al.
patent: 4644202 (1987-02-01), Kroy et al.
patent: 4806080 (1989-02-01), Mizobuchi et al.
patent: 5163812 (1992-11-01), Klaus
patent: 5219276 (1993-06-01), Metzner et al.
patent: 5248245 (1993-09-01), Behnke et al.

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