Over-rotation preventing device for internal combustion engines
US4385617A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 6, 1980 |
| Grant date | May 31, 1983 |
| Priority date | — |
| Expiry date | Oct 6, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a device wherein a positive voltage induced in an exciter coil at the time of a high speed rotation is sensed, a switching transistor is switched on by the terminal voltage of a time constant circuit connected in series with the exciter coil through the switching transistor and, in spite of a negative voltage then induced in the exciter coil, the discharge of a discharging capacitor connected in series with an ignition coil to the ignition coil is delayed by a thyristor for controlling the discharge in response to the above mentioned time constant characteristic to delay the ignition speed, that is, to positively prevent the over-rotation of the internal combustion engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.