Electronic ignition device for internal combustion engines

Internal-combustion engines – Igniters – Incandescent

Patent

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Details

315209CD, F02P 306

Patent

active

041333292

ABSTRACT:
An electronic ignition device for an internal combustion engine comprises a capacitor supplied by a charging circuit, a thyristor controlling discharge of the capacitor into the primary of an ignition coil, and a control circuit including an oscillator successively producing non-conduction and conduction of the thyristor several times in response to each opening of a contact-breaker. The device also comprises an RC delay element and a bistable trigger controlled to prevent operation of the control circuit when the device is switched on while the contact-breaker is in a given position, said trigger permitting operation of the control circuit as soon as the contact-breaker comes into action.

REFERENCES:
patent: 3714507 (1973-01-01), Schweitler et al.
patent: 3898971 (1975-08-01), Lefeure

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