Internal-combustion engines – High tension ignition system – Using capacitive storage and discharge for spark energy
Patent
1988-07-01
1990-01-09
Neill, Raymond A.
Internal-combustion engines
High tension ignition system
Using capacitive storage and discharge for spark energy
123605, F02P 306
Patent
active
048920800
ABSTRACT:
A high-energy ignition system for an internal combustion engine in which both magnetic and electrical energy stored in an energy storage coil and in a capacitor are supplied to the primary winding of an ignition coil at a predetermined timing. When a first or second switching device is turned off, the capacitor is charged with the energy stored in advance in the energy storage coil, and upon subsequent turning on of the first switching device, energy is stored in the energy storage coil from a DC power supply. At substantially the same time as the turning off of the first switching device at an ignition timing, the second switching device is turned on to supply the primary winding with the energy stored in the energy storage coil and the capacitor. Alternatively, the capacitor is charged with the energy stored in advance in the energy storage coil through the primary winding of the ignition coil and a charging diode at the time of turning off of the second switching device. The first and second switching devices operate similarly to supply the primary winding through a discharging diode with the energy stored in the energy storage coil and the capacitor.
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Kawamoto Satoru
Morino Seiji
Nariki Toshio
Sugimoto Toshio
Yoshitani Yoshihiro
Neill Raymond A.
Nippondenso Co. Ltd.
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