Rotary electrical machine having magnet arrangements with magnets of different compositions
US6847143B1 · kind B1 · utility
20Cited by
33References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 17, 2000 |
| Grant date | Jan 25, 2005 |
| Priority date | — |
| Expiry date | Mar 17, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K21/042
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A rotary electrical machine, especially an alternator or an alternator-starter for a motor vehicle, comprises a stator (S), a rotor (R) and permanent magnets incorporated in the rotor and/or the stator, in which the said magnets are formed into at least two groups each of which is defined by a specific type of composition, with each sub-assembly being a combination of a magnet containing rare earths with a ferrite magnet, at least one of the magnets being arranged radially so as to generate an orthoradial magnetic flux.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.