Internal-combustion engines – Igniters – Incandescent
Patent
1975-05-14
1978-03-07
Myhre, Charles J.
Internal-combustion engines
Igniters
Incandescent
1231465A, 123148CB, 123149C, F02P 100
Patent
active
040773809
ABSTRACT:
An ignition system for internal combustion engines. It concerns an improvement for a controlled-duration continuous-wave high-frequency system, that has an output transformer with a control winding thereon. The system has an oscillator with the output transformer included therein. The oscillator generates spark energy, and an engine-timed unit controls an electronic switch that starts and stops the oscillator by breaking and making a loading circuit for the control winding. The improvement concerns a time constant element in electronic circuit means between the engine-timed unit and the electronic switch. The arrangement is such that the engine-timed unit controls the beginning of all spark intervals, and the end of each spark interval at less than a predetermined speed of the engine. But, only the time constant element controls the end of each spark interval at more than the predetermined speed of the engine.
REFERENCES:
patent: 3430615 (1969-03-01), Chavis
patent: 3626910 (1971-12-01), Porsche et al.
patent: 3736463 (1973-05-01), Basso et al.
patent: 3838328 (1974-09-01), Lundy
patent: 3903856 (1975-09-01), McDougal et al.
patent: 3913550 (1975-10-01), Canup
patent: 3973545 (1976-08-01), Fischman et al.
Dearborn Henry C.
Lall Parshotam S.
Myhre Charles J.
Ries Carl G.
Texaco Inc.
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