Alternating current energized ignition system

Internal-combustion engines – High tension ignition system – Using capacitive storage and discharge for spark energy

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Details

123607, 123620, 123654, F02P 304

Patent

active

043277012

ABSTRACT:
An inductive-capacitive cyclic charge-discharge ignition system includes an ignition transformer primary winding in parallel with a capacitor and fed by an alternating current source providing a plural number of repetition cycles during each igniter firing period. Such repetition cycles cause the capacitor and primary winding to charge and dischage during each of the repetition cycles creating a plurality of ringing periods for each igniter firing period. A diode or an additional capacitor, or both, inserted in series with the parallel combination of the first stated capacitor and primary winding, substantially increases the velocity of arc provided by an igniter. Such arc has several components composed of luminous particles extending across the entire base of the igniter. By initiating ignition timing at a very large angle in advance of top dead center piston position, very long arcs may be created at the igniter base.

REFERENCES:
patent: 3718125 (1973-02-01), Posey
patent: 4293798 (1981-10-01), Gerry

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