Rotor core with spacers
US7638913B2 · kind B2 · utility
8Cited by
24References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 25, 2006 |
| Grant date | Dec 29, 2009 |
| Priority date | — |
| Expiry date | Dec 28, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K1/2726
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric machine that includes a stator core having a stator core length, a first rotor core portion, and second rotor core portion. A spacer is coupled to the first core portion and the second core portion to at least partially define a rotor core. The rotor core has a length that is greater than the stator core length. A permanent magnet is coupled to the rotor core and has a magnet length. The magnet length is greater than the stator core length.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.