Capacitor discharge ignition system with timing control arrangem

Details Capacitor discharge ignition system with timing control arrangem Capacitor discharge ignition system with timing control arrangem

1979-02-22

1980-10-21

Lall, P. S.

Internal-combustion engines

High tension ignition system

Using capacitive storage and discharge for spark energy

123605, 315209SC, 315209CD, F02P 308, F02P 306

Patent

active

042287804

ABSTRACT:
A capacitor discharge ignition system is provided with an ignition timing control arrangement to achieve a predetermined ignition timing retard characteristic at high engine speeds and thus provide engine speed control. The capacitor discharge ignition system is positioned adjacent a rotating permanent magnet that is rotated over a path in synchronism with the operation of an engine to be controlled.
The capacitor discharge ignition system includes a stator core having disposed thereon an ignition coil and a control coil. As a first pole of the magnet passes the stator core, a voltage and current of a first polarity is induced in the control coil to charge a storage capacitor. As the second pole of the magnet passes the stator core, a voltage and current of the opposite polarity is induced in the control coil and a control arrangement responsive to the control coil discharges the capacitor into a primary winding of the ignition coil. The induced voltage and current in a secondary winding of the ignition coil provides suitable power conditions to fire a spark plug or spark plugs connected across the secondary winding. The capacitor discharge ignition system provides a high output voltage while preventing excessively high reverse voltages to the various components of the system.

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patent: 4132208 (1979-01-01), Yakawa

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