F - Mech Eng,Light,Heat,Weapons – 04 – B
Patent
F - Mech Eng,Light,Heat,Weapons
04
B
F04B 53/08 (2006.01) F04B 47/06 (2006.01) F04D 29/58 (2006.01) H02K 9/14 (2006.01) H02K 9/19 (2006.01)
Patent
CA 2283603
A forced closed-loop cooling system is provided for an electric motor driven submersible pump having a motor housing containing an electric motor with a rotatable motor shaft extending therefrom, and a pump housing attached to the motor housing, the pump housing having a fluid inlet, a fluid outlet, and a pump impeller mounted therein on the motor shaft. The closed-loop cooling system consists of a coolant jacket surrounding the motor housing to define an annular motor cooling chamber; an end plate interposed between the motor housing and the pump housing to define a coolant sump about the motor shaft. The coolant sump is in fluid communication with the annular motor cooling chamber and sealed from pumped fluid in the pump housing by the end plate. The end plate has features for enhanced heat transfer and is in contact with the pumped fluid in the pump housing for transferring heat thereto. There is also provision for forced circulation of coolant between the coolant sump and the annular motor cooling chamber.
Behnke Paul W.
Cronin Richard J.
Ingersoll-Dresser Pump Company
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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