Fluid-submerged electric motor

Details Fluid-submerged electric motor Fluid-submerged electric motor

2008-04-01

2008-04-01

Lam, Thanh (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S087000

Reexamination Certificate

active

10804305

ABSTRACT:
An electric motor has at least one component that is submerged in a cooling fluid held in a fluid-filled cavity. The stator, rotor, and rotor shaft bearings are all possible components that may be submerged. The cooling fluid floods the stator, rotor, and/or bearings to cool the components. The fluid may have a high electrical resistance to isolate the motor components from any contact with flammable gasses as well as prevent arcs or sparks. The cavity holding the fluid also ensures continuous lubrication by preventing fluid from leaking or evaporating out of the motor.

REFERENCES:
patent: 1531724 (1925-03-01), Arutunoff
patent: 4541782 (1985-09-01), Mohn
patent: 4749894 (1988-06-01), Iwata et al.
patent: 4785211 (1988-11-01), Erickson et al.
patent: 5034638 (1991-07-01), McCabria
patent: 5619956 (1997-04-01), Koziara
patent: 5930852 (1999-08-01), Gravatt
patent: 60 257738 (1985-12-01), None
European Search Report, dated Jul. 5, 2006.

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