Capacitor discharge type internal combustion engine ignition device
US6571769B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 29, 2002 |
| Grant date | Jun 3, 2003 |
| Priority date | — |
| Expiry date | Jul 29, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02P7/06
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A capacitor discharge type internal combustion engine ignition device is provided; wherein a capacitor is charged by a positive half-wave output voltage of an exciter coil; wherein an ignition is performed by giving an ignition signal to a thyristor from an ignition control portion for steady state; wherein a pulse signal obtained by waveform-shaping a negative half-wave output voltage of the exciter coil or the signal generated by a signal generator is given to the thyristor as the ignition signal through an ignition control portion for extremely low speed state so as to perform an ignition at a starting time and at an extremely low speed state; and wherein a power supply circuit which gives a power supply voltage to the ignition control portion for steady state and the power supply circuit which gives the power supply voltage to the ignition control portion for extremely low speed state are provided separately whereby the ignition signal for the starting time and the extremely low speed state can be generated at low speed so that the starting characteristic of the engine is improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.