Electric power supply unit, in particular for a motor vehicle, and an electric rotary machine for such a unit
US4825139A · kind A · utility
27Cited by
3References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 6, 1987 |
| Grant date | Apr 25, 1989 |
| Priority date | — |
| Expiry date | Jul 6, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The electric power supply comprises an electric rotary machine intended to be driven by an engine in order to supply electrical energy to a battery and/or to various user units, and rectifier means combined with the machine for obtaining direct current. The machine is chosen in such a way that when it is driven by the engine at its idling speed, the voltage at the terminals of the machine is insufficient to ensure charging of the battery; the unit comprises means to make it possible to establish periodically a voltage surge at the terminals of the machine and a current for charging the battery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.