Ignition system for internal combustion engines
US4378779A · kind A · utility
6Cited by
5References
4Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jul 28, 1980 |
| Grant date | Apr 5, 1983 |
| Priority date | — |
| Expiry date | Jul 28, 2000 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02P7/035
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An ignition system for an internal combustion engine includes two power transistors respectively connected to opposite ends of the primary winding of an ignition coil to interrupt the primary currents which flow from a power source through the mid-tap of the primary winding. The two power transistors have emitters connected in common and a resistor is connected to the junction of this common connection to detect respective primary currents with the single resistor. A single current control circuit is provided to control the two power transistors in response to the detected respective primary currents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.