Electrical machine with circumferentially skewed rotor poles or stator coils
US9590458B2 · kind B2 · utility
2Cited by
11References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2012 |
| Grant date | Mar 7, 2017 |
| Priority date | — |
| Expiry date | Oct 22, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K29/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A rotor for an electrical machine including a plurality of pole sections with adjacent poles within each of the pole sections being distanced by a first uniform pole pitch. Adjacent poles belonging to different pole sections are distanced by a second (smaller) pole pitch at one end of each pole section, and by a third (larger) pole pitch at the other end of each pole section. Alternatively, a corresponding adjustment of coil pitches can be done in a stator of an electrical machine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.