Shroud for dynamoelectric machine
US5065058A · kind A · utility
7Cited by
3References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 6, 1991 |
| Grant date | Nov 12, 1991 |
| Priority date | — |
| Expiry date | May 6, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K9/18
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A ventilation cooling system for a dynamoelectric machine is disclosed, which provides improved cooling efficiency and reduction in windage loss. A first stream of cooling gas is directed into the spider of the machine and transversely through ventilation ducts in the rotor, across the gap, then through corresponding ducts in the stator. A further stream of cooling gas is drawn in between the spider and a shroud which extends inwardly transversely from the stator. This further stream is directed downwardly between the poles of the rotor and then transversely through the gap and stator in conjunction with the first stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.