Submerged motor pump having an outer casing which is radially de

Details Submerged motor pump having an outer casing which is radially de Submerged motor pump having an outer casing which is radially de

1989-02-07

1991-10-08

Smith, Leonard E.

Pumps

Motor driven

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

4174233, 41742314, F04B 3906

Patent

active

050550063

ABSTRACT:
Disclosed is a submerged motor pump of the type in which a motor is installed inside an outer casing so as to define an annular passage therebetween and a pumped liquid is discharged to the outside through the annular passage while cooling the entire periphery of the motor. The outer casing is formed using a resilient material and is retained at its upper and lower ends by rigid members. Accordingly, the outer casing is deformable in the radial direction so as to absorb external force, for example, impact force, which may be applied thereto during transportation.

REFERENCES:
patent: 3153382 (1964-10-01), Barcom Jr.
patent: 3775024 (1973-11-01), Ulm
patent: 4523899 (1985-06-01), Ouchi
patent: 4778354 (1988-10-01), Idei
patent: 4806083 (1989-02-01), LaGrange et al.
Patent Abstracts of Japan, vol. 6, No. 89 (M-132)[967], 27th May 1982; & JP-A-57-26 295 (Hitachi Seisakusho K.K.) 12-02-82.

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