INTERNAL COMBUSTION ENGINE NONCONTACT IGNITION SYSTEM Russian patent published in 2000 - IPC

FIELD: transport engineering; ignition system. SUBSTANCE: proposed invention relates to ignition systems with energy accumulation in inductance coil and it can be used on vehicles and electric plants with noncontact magnetoelectric firing point transmitters. Ignition system has ignition coil, series resistor, capacitor, transistor switch and pulse transmitter. It is additionally furnished with transistor vibrator provided with three terminals, two diodes and three-position change-over switch with one input and three output terminals. First terminal of transistor vibrator is connected to common connection point of series resistor and output terminal of ignition coil primary winding. Second terminal of vibrator is connected with first output terminal of change-over switch and cathode of one diode. Third terminal of vibrator is connected with housing. Anodes of both diodes are connected with second output terminal of change-over switch. Cathode and power input of transistor switch are connected with third output terminal of change- over switch, and input terminal of change-over switch is connected with common point of output terminal of primary winding of ignition coil and capacitor. EFFECT: improved reliability of ignition system by provision of its operation under three modes. 1 dwg