Spark timing control device for internal combustion engine
US4633834A · kind A · utility
27Cited by
10References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 13, 1985 |
| Grant date | Jan 6, 1987 |
| Priority date | — |
| Expiry date | Mar 13, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An ignition system spark timing controller having circuits for advancing the time at which the ignition system will produce a sparking potential during the starting of the engine, and for maintaining this advanced spark time for a predetermined time period after the engine has started when the temperature of the engine is below a predetermined temperature level during the starting of the engine. The spark timing controller also includes a circuit for advancing the time at which the ignition system will produce a sparking potential when the speed of the engine is below a predetermined speed level after the engine has started.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.