Immersion pump assembly

Details Immersion pump assembly Immersion pump assembly

1989-06-05

1991-07-02

Michalsky, Gerald A.

Pumps

Motor driven

Electric or magnetic motor

417366, 4174237, 4174238, F04D 1308

Patent

active

050282182

ABSTRACT:
An immersion pump assembly comprises a pump and a wet-rotor motor driving the pump and having a common hollow spindle for the motor and the pump. Liquid in the wet-rotor compartment of the motor can be introduced into the spindle and conveyed within the spindle into the pump casing in heat exchange relationship with the liquid conveyed by the pump, by way of the wall of the spindle. The liquid is returned from the spindle into the rotor compartment by a pumping action. The exit and return openings for the liquid in the rotor compartment are spaced from each other axially of the pump assembly.

REFERENCES:
patent: 2120914 (1938-06-01), Vogel
patent: 3242360 (1966-03-01), Carle
patent: 3933416 (1976-01-01), Donelian
patent: 4456437 (1984-06-01), Kurahayashi et al.
patent: 4834624 (1989-05-01), Jensen et al.

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