Self-lubricating submersible electric motor

Details Self-lubricating submersible electric motor Self-lubricating submersible electric motor

1997-06-12

1999-04-27

Enad, Elvin G.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 52, 310 58, 310 60A, 310 61, 310 65, 310 87, H02K 900

Patent

active

058982450

ABSTRACT:
An electric motor of the type used to power submersible pumps is disclosed. An interior cavity of the motor is filled with one or more liquids for cooling and/or lubricating the motor interior. A system for circulating the fill liquid within the motor cavity comprising a rotatable cup spacer attached to the motor shaft and liquid passageways is described.

REFERENCES:
patent: 4377763 (1983-03-01), Drake
patent: 4995789 (1991-02-01), Fujio
patent: 5087170 (1992-02-01), Kousokabe et al.
patent: 5169286 (1992-12-01), Yamada
patent: 5212964 (1993-05-01), Utter et al.
patent: 5616973 (1997-04-01), Khazanov et al.
patent: 5674056 (1997-10-01), Yamamoto et al.
patent: 5704717 (1998-01-01), Cochimin

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