Permanent magnet machine with offset pole spacing
US8018109B2 · kind B2 · utility
19Cited by
28References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2010 |
| Grant date | Sep 13, 2011 |
| Priority date | — |
| Expiry date | Sep 14, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/72
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An internal permanent magnet machine has multiple rotor sections, each section having multiple rotor laminations. Permanent magnets are placed asymmetrically in lamination openings to attenuate oscillations in torque caused by harmonic components of magnetic flux.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.