Electric machine with air cooling system
US8597001B2 · kind B2 · utility
4Cited by
11References
19Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | May 14, 2007 |
| Grant date | Dec 3, 2013 |
| Priority date | — |
| Expiry date | Jul 6, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K1/20
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric machine comprising a stator having a stator winding, a housing accommodating the stator, a rotor, and an air gap having a generally cylindrical configuration. A plurality of circumferentially distributed, radial, first cooling gas ducts are provided in a stator core. Jets of cooling gas are directed to regions of an end winding which are relatively distant from the stator core, in order to achieve impingement cooling thereof. Flows of cooling gas are directed to portions of the end winding which are between the impingement cooled regions of the end winding and the respective front face of the stator core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.