Method of improving heat transfer in stator coil cooling tubes
US5408152A · kind A · utility
10Cited by
5References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 28, 1994 |
| Grant date | Apr 18, 1995 |
| Priority date | — |
| Expiry date | Mar 28, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K3/24
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method of cooling an electrodynamic machine having an inner-cooled stator winding consisting of a stator coil surrounding a cooling tube, including the steps of locating a hot-spot along a length of the stator coil through which the cooling tube runs, deforming the cooling tube at a tube location generally adjacent the hot-spot so as to increase the flow resistance of the cooling tube, and flowing a cooling medium through the cooling tube during operation of the electrodynamic machine to effect a heat transfer between the stator coil and the cooling medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.