Immersion pump assembly

Details Immersion pump assembly Immersion pump assembly

1989-08-17

1990-06-05

Rivell, John

Pumps

Motor driven

With means to prevent heat transfer between pump and motor

4174233, 4174238, 415177, F04B 3906, F01D 508

Patent

active

049309960

ABSTRACT:
An immersion pump assembly comprises a pump and a wet-rotor motor driving the pump. The motor and the pump have a common shaft which is closable and hollow and which is partly filled with a fluid, for dispersal of waste heat from the rotor chamber of the motor into a heat sink provided by the liquid to be conveyed by means of the pump. The shaft together with the fluid constitutes a rotating heat pipe system.

REFERENCES:
patent: 2461821 (1949-02-01), Howard et al.
patent: 2601146 (1952-06-01), Ivanoff
patent: 4191240 (1980-03-01), Rule et al.
patent: 4697565 (1987-10-01), Kobayashi et al.

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