Motor/generator
US6774591B2 · kind B2 · utility
31Cited by
11References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 26, 2002 |
| Grant date | Aug 10, 2004 |
| Priority date | — |
| Expiry date | Oct 16, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P9/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A motor/generator comprises a stator (2) having plural coils (C1-C14), and plural rotors (3, 4) disposed coaxially with the above-mentioned stator and driven by a compound current. The phase difference between the currents (70, 71) driving the rotors (3, 4) is arranged to be other than 180 degrees. Thereby, the utilization factor of the voltage of the direct current power supply (10) is improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.