Alternator with magnetic noise reduction mechanism
US5691590A · kind A · utility
69Cited by
9References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 6, 1995 |
| Grant date | Nov 25, 1997 |
| Priority date | — |
| Expiry date | Jun 6, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K5/24
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In an alternator for a vehicle having a field coil for generating rotating magnetic field and stator coils for generating alternating current voltages in response to the rotating magnetic field, the stator coils are grouped and wound in a dual winding system. In order to reduce magnetic noise, a first group of coils are provided in contact with a stator core and the second group coils. The first and second group of coils are shifted from each other by .pi./3 radian in electrical angle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.