Electrical machine
US4197488A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 15, 1977 |
| Grant date | Apr 8, 1980 |
| Priority date | — |
| Expiry date | Apr 15, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2201/18
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrical machine having an armature capable of both rotational movement and translational movement and which can be driven by alternating current or by stepwise control pulses. The coil of the machine is divided into two half-coils which are electrically separated and which each act on a separate group of pole teeth. The armature likewise has two groups of pole teeth, each of which cooperates with a group of teeth of the coil. The teeth are symmetrical with respect to the median plane of the machine, and the coil teeth lie at a different angle with respect to that median plane than do the armature teeth. The two half-coils are separately energized to produce moving poles in space.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.