Ignition system for an internal combustion engine

Details Ignition system for an internal combustion engine Ignition system for an internal combustion engine

1976-08-16

1978-10-10

Cox, Ronald B.

Internal-combustion engines

Igniters

Incandescent

315209T, F02P 100

Patent

active

041190769

ABSTRACT:
An ignition system for an internal combustion engine having an AC generator compriss an ignition coil energized by an output from the generator. At an angle in advance of ignition timing, a first thyristor connected across the generator output terminals is turned on to permit a short-circuit current therethrough. A capacitor is charged by an output from the generator, and is discharged through a second thyristor which is triggeed at the ignition angle. The discharge current is reversely applied to the first thyristor and the first thyristor is turned off. Interruption of the short-circuit current through the first thyristor leads to a large current through the primary of the ignition coil, causing a high voltage in the secondary with resultant spark in the ignition plug.

REFERENCES:
patent: 3260251 (1966-07-01), Lange
patent: 3280810 (1966-10-01), Worrell
patent: 3421488 (1969-01-01), Tarter
patent: 3424944 (1969-01-01), Nilssen
patent: 3484677 (1969-12-01), Pitco
patent: 3851636 (1974-12-01), Just

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