Stator drain and electrical apparatus employing the same
US5034639A · kind A · utility
12Cited by
12References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 19, 1990 |
| Grant date | Jul 23, 1991 |
| Priority date | — |
| Expiry date | Jun 19, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K9/19
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A stator drain supports stator windings and rotor bearings and permits fluid coolant for the rotor bearings to be drained outward past the stator windings from the bearings. The drain is formed of a non-metallic material and has an inner surface for supporting a bearing liner of the rotor bearings, a plurality of spaced openings for receiving stator windings and drain slots extending through the annular member at locations corresponding to spaces between the stator windings for draining the fluid coolant. The stator drain is useful in a dual permanent magnet generator, for example.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.