Electronic ignition apparatus including ignition-noise making si

Details Electronic ignition apparatus including ignition-noise making si Electronic ignition apparatus including ignition-noise making si

1987-09-23

1989-09-05

Dolinar, Andrew M.

Internal-combustion engines

High tension ignition system

Maverick spark suppressor

123618, F02P 7077

Patent

active

048628638

ABSTRACT:
In an electronic ignition apparatus, there are provided an ignition signal generator, an ignition circuit, an ignition-noise masking signal generator, a switching transistor and an ignition coil. The ignition signal of the ignition signal generator is supplied to the ignition circuit to produce a first ignition pulse and a second ignition pulse which is electrically isolated from the first ignition pulse. The first ignition pulse is applied to the switching transistor so as to switch the collector voltage thereof, whereby high voltage ignition pulse is produced in the ignition coil. The second ignition pulse is applied to the ignition-noise masking signal generator to produce an ignition-noise masking signal. The ignition-noise masking signal is superimposed on the ignition signal so as to mask the ignition noise at least when the high voltage ignition pulse is produced in the ignition coil.

REFERENCES:
patent: 3605713 (1971-09-01), LeMasters et al.
patent: 4347827 (1982-09-01), LoCascio
patent: 4617905 (1986-10-01), Hill

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