Pumps – Motor driven – Electric or magnetic motor
Patent
1995-12-06
1996-11-05
Gluck, Richard E.
Pumps
Motor driven
Electric or magnetic motor
4174238, 41742313, F04B 1700
Patent
active
055710018
ABSTRACT:
A pressure-resistant explosion-proof electric motor (44) is surrounded by a double casing comprised of inner and outer cases with a motor-cooling oil passage (54) formed therebetween. A flange (26) is detachably fitted to the top surface of a tank to hold the electric motor (44) in the tank. A downwardly-extending pipe (28) is at an upper end fixed to the flange and at a lower end connected through a terminal box (30) to the electric motor (44). A centrifugal pump (67) is fixed to the underside of the electric motor (44) to have its rotary shaft connected to the output shaft (60) of the electric motor (44). A motor cover accommodates therein the electric motor and the terminal box (30) in a watertight manner. A protective pipe (71) extends from the flange (26) to the motor cover (69) and accommodates therein the downwardly-extending pipe (28) in a watertight manner. A cooling oil is circulated through the motor-cooling oil passage (54) to cool the electric motor. This water-immersed cargo handling pump is suitable for transferring the liquid in a tank of a vessel.
REFERENCES:
patent: 2492141 (1949-12-01), Gaylord
patent: 4293288 (1981-10-01), Weber
patent: 4948348 (1990-08-01), Doll et al.
patent: 5336064 (1994-08-01), Lamers
Fukuda Tetsuya
Yamada Yoshiaki
Gluck Richard E.
Japanese Marine Equipment Association
Taiko Kikai Industries Co., Ltd.
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