Synchronous motor with heterogeneously pitched teeth
US4112319A · kind A · utility
23Cited by
4References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 23, 1976 |
| Grant date | Sep 5, 1978 |
| Priority date | — |
| Expiry date | Dec 23, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K21/16
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In the disclosed motor, teeth on winding-energized stator poles project radially toward equally-pitched radially projecting rotor teeth energized by a permanent magnet. The pitches of the teeth on each stator pole vary but have an average pitch approximately equal to the pitch of the rotor teeth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.