Device for generating specific electrical voltage values for consumers associated with an internal combustion engine
US4435745A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 1982 |
| Grant date | Mar 6, 1984 |
| Priority date | — |
| Expiry date | Mar 18, 2002 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2041/2048
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A device is proposed for generating specific electrical voltage values for consumers associated with an internal combustion engine. The device also encompasses a voltage elevating circuit which can be switched on in the vicinity of the minimum voltages for the consumers. This means that this voltage elevating circuit does not need to be switched on continuously during engine operation, but rather only at times of increased power needs. The voltage elevating circuit has a series circuit of a coil 20 and a diode 21 in a voltage supply line, and the connecting point of these two components is briefly closed off from the other supply line in a clocked manner. The activation of the voltage elevating circuit can be switched on and off in accordance with the input and output voltages and in accordance with the maximum permissible switching current. Depending on the clock frequency of the switch 23, the line inductance of the supply line suffices as an inductance 20.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.