F - Mech Eng,Light,Heat,Weapons – 04 – D
Patent
F - Mech Eng,Light,Heat,Weapons
04
D
F04D 13/06 (2006.01) F04D 3/00 (2006.01) F04D 29/04 (2006.01) F04D 29/06 (2006.01) F04D 29/22 (2006.01) F04D 29/66 (2006.01)
Patent
CA 2137606
ABSTRACT A fluid pump powered by an integral canned motor includes a housing having a cylindrical passage extending therethrough. A sealed annular stator is mounted around the housing. An impeller assembly is rotatably mounted in the passage in the housing. The impeller assembly includes an axial flow impeller and a sealed rotor mounted around the periphery of the impeller. Bearings, including thrust bearings, are mounted between the periphery of the impeller assembly and the housing. A radial flow auxiliary impeller may be mounted on the impeller assembly to create a radial flow of water from the cylindrical passage in the housing to a peripheral fluid circulation channel between the impeller assembly and the housing. The auxiliary flow impeller pressurizes the peripheral fluid circulation channel.
Campen Clifford H.
Drake James A.
Jenkins Leonard S.
Kujawski Joseph M.
Veronesi Luciano
Bereskin & Parr
Westinghouse Electric Corporation
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