Process cooled submersible pump and motor assembly

Details Process cooled submersible pump and motor assembly Process cooled submersible pump and motor assembly

1974-03-25

1976-07-13

Husar, C. J.

Pumps

Motor driven

Including means utilizing pump fluid for augmenting cooling,...

415214, 417423R, 310 54, 310 63, F04B 3906

Patent

active

039690431

ABSTRACT:
A submersible pump having a volume chamber with a volute wall integrally formed with and extending internally to a hermetically sealed housing. A fixed bearing is pressed in the interior wall of the volume chamber and is so established to determine the axial alignment of a drive shaft passing therethrough. The drive shaft is also supported by a self-aligning bearing disposed within the housing. An impeller, disposed within the volume chamber, is connected to the drive shaft. A drive motor enclosed in the housing rotates the drive shaft and the impeller, the motor being surrounded by a coolant fluid therein. Inlet and outlet ports are provided to complete the pump. As the impeller is rotated to pump a process fluid, the coolant fluid in the housing serves to lubricate the bearings and to effect heat transfer from the motor and bearings through the walls of the volume chamber to the process fluid. One embodiment of the present invention provides a submersible pump and motor assembly that is insulated in a manner that assures complete electrical integrity of the assembly.

REFERENCES:
patent: 1269909 (1918-06-01), Cooper
patent: 3074349 (1963-01-01), Zimmermann
patent: 3119342 (1964-01-01), White
patent: 3170407 (1965-02-01), Johnson
patent: 3264999 (1966-08-01), Tutthill
patent: 3408942 (1968-11-01), Davenport et al.
patent: 3495538 (1970-02-01), Kruckeberg
patent: 3502030 (1970-03-01), Bukewihge et al.
patent: 3576380 (1971-04-01), Sargeant
patent: 3791773 (1974-02-01), Maginnis
patent: 3819293 (1974-06-01), Zitzmann

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