Electric rotating machine
US7233093B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 2, 2004 |
| Grant date | Jun 19, 2007 |
| Priority date | — |
| Expiry date | Sep 1, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/7072
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric rotating machine, including a stator including circumferentially arranged stator teeth, inner and outer rotors disposed coaxially with the stator inside and outside thereof, an inner armature coil group including a plurality of inner armature coils wound on the stator teeth on a side of the inner rotor, the inner armature coil group being energized to drive the inner rotor, and an outer armature coil group including a plurality of outer armature coils wound on the stator teeth on a side of the outer rotor, the outer armature coil group being energized to drive the outer rotor. The inner and outer armature coil groups have electric connections between the inner armature coils and between the outer armature coils so as to prevent occurrence of magnetic interference between the inner and outer armature coil groups, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.