Method and device for igniting combustible substances

Details Method and device for igniting combustible substances Method and device for igniting combustible substances

1974-03-25

1976-03-16

Burns, Wendell E.

Internal-combustion engines

Igniters

Incandescent

123148CC, F02P 100

Patent

active

039439054

ABSTRACT:
The invention provides means to produce a spark for firing a mixture in an internal combustion, wherein the spark has a high steep voltage wave front followed by an elongated tail of lower voltage, by providing an induction coil, a capacitative voltage source and an inductive voltage source, and means for suitably applying both sources in parallel to the induction coil primary when a spark is required. Several alternative circuits are described, a capacitor providing the high voltage short duration wave front to initiate the spark, while an inductor, which may be part of a transformer supplies the longer duration low-voltage tail. The voltage to charge the capacitor may be derived by rectifying the output voltage of a step-up charging transformer.

REFERENCES:
patent: 2977507 (1961-03-01), Short
patent: 2985797 (1961-05-01), Williams et al.
patent: 3134048 (1964-05-01), Wolffram et al.
patent: 3169212 (1965-02-01), Walters
patent: 3357415 (1967-12-01), Huntzinger
patent: 3545420 (1970-12-01), Foreman
patent: 3587550 (1971-06-01), Zechlin
patent: 3623466 (1971-11-01), Palmer
patent: 3677255 (1972-07-01), Withem

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