Reluctance type synchronous motor
US5903080A · kind A · utility
31Cited by
8References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 12, 1997 |
| Grant date | May 11, 1999 |
| Priority date | — |
| Expiry date | Jun 12, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2201/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A reluctance type synchronous motor comprises: a stator with a plurality of slots placed at an even pitch angle wherein stored inside each slot is a stator winding for creating stator magnetic poles with a predetermined phase alternating current being supplied thereto. A rotor sustained by a shaft and changing magnetic reluctance in its circumferential direction by inclusion inside of a plurality of magnetic isolating portions creates desired magnetic poles. At least one of the central angles between magnetic poles created at the rotor is shifted from the other central angles so that torque ripples during rotation can be reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.