Apparatus for producing spark ignition of an internal combustion

Details Apparatus for producing spark ignition of an internal combustion Apparatus for producing spark ignition of an internal combustion

1979-11-09

1982-09-14

Cox, Ronald B.

Internal-combustion engines

High tension ignition system

Additional spark energy supply

123598, 123606, 123621, 123626, 123630, 331113A, F02P 100

Patent

active

043490085

ABSTRACT:
Apparatus for producing spark ignition of an internal combustion engine in which sparks at the spark plugs are initiated by a high voltage pulse of typically 20 KV and are sustained thereafter by a d.c. voltage of typically 3 KV. In one embodiment the d.c. voltage is produced from a 12 volt supply by a d.c. to d.c. converter, the converter being adapted to produce a substantially constant voltage irrespective of the current drain produced by the spark, within given limits. The converter is also adapted to shut down its operation in the event of an output short circuit. The converter is disclosed connected to a lean burn PROCO engine with the result that only one spark plug per cylinder is required. In an alternative embodiment the d.c. sustaining voltage is derived directly from a conventional alternator driven by the engine.

REFERENCES:
patent: 2807729 (1957-09-01), Redick
patent: 3173410 (1965-03-01), McLaughlin
patent: 3270731 (1966-09-01), Mieras
patent: 3718124 (1973-02-01), Burley
patent: 3818885 (1974-06-01), Canup
patent: 3906919 (1975-09-01), Asik
patent: 3961613 (1976-06-01), Canup
patent: 3973545 (1976-08-01), Fischman
patent: 4033316 (1977-07-01), Birchenough
patent: 4069801 (1978-01-01), Stevens
patent: 4136301 (1979-01-01), Shimojo

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