Rotating electric machine
US7737586B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 19, 2008 |
| Grant date | Jun 15, 2010 |
| Priority date | — |
| Expiry date | Dec 6, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K9/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A rotating electric machine wherein sub slots serving as cooling fluid ducts in the axial direction are provided at the bottoms of the coil slots formed in the rotor, radial cooling fluid ducts are formed through the field coil of the rotor in the radial direction of the rotor and juxtaposed in the axial direction of the rotor, so as to communicate the sub slots with the air gap, and radial cooling fluid ducts are formed through the stator in the radial direction of the stator and juxtaposed in the axial direction of the rotor, corresponding in position to the radial cooling fluid ducts in the rotor, so as to communicate the inner periphery of the stator with the outer periphery of the stator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.