Electric motor
US8536754B2 · kind B2 · utility
6Cited by
8References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 7, 2009 |
| Grant date | Sep 17, 2013 |
| Priority date | — |
| Expiry date | Apr 11, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K3/28
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrical machine comprising a stator (1) and a rotor (2) movable relative to the stator is provided. The stator (1) comprises a doubled number of notches (3) with respect to a pole pair number p of the rotor. This is combined with differing numbers (n1, n2) of turns per phase winding or with differing tooth widths (Z1, Z2) of teeth (6, 7) of the stator which are formed between neighboring notches (3).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.