Rotary electric machine
US6664699B2 · kind B2 · utility
7Cited by
2References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 10, 2001 |
| Grant date | Dec 16, 2003 |
| Priority date | — |
| Expiry date | Aug 22, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K9/28
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A rotary electric machine has a brush assembly that defines a slip ring cavity enclosing slip rings and brushes. The brush assembly provides two different outlets for particles and cooling air. The first outlet is located on a side with respect to a shaft and is directed in an axial backward direction. The second outlet is located on a bottom and is directed in a radial downward direction. The second outlet is close to a fan for inducing airflow in the slip ring cavity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.