Internal-combustion engines – Igniters – Incandescent
Patent
1976-05-17
1978-08-29
Myhre, Charles J.
Internal-combustion engines
Igniters
Incandescent
F02P 100
Patent
active
041096304
ABSTRACT:
An electronic ignition system for an internal combustion engine having a timing signal source comprising an oscillator for providing a carrier signal; an electronic network connected to the oscillator and including a sensor means for providing a reactance which varies as a function of the rotational position of the engine, the network further including a reference means for comparing the reactance of the sensor means and providing modulation of said carrier signal; a detector for demodulating the modulated carrier signal and providing an output signal indicative of a predetermined rotational position of the engine. The output signal is supplied to switching circuitry for switching the primary of an ignition coil and providing a high voltage output pulse at a time synchronized with said predetermined rotational position of the engine.
REFERENCES:
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patent: 3161803 (1964-12-01), Knittweis
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patent: 3361121 (1968-01-01), Kasoma et al.
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patent: 3650260 (1972-03-01), Silvera
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patent: 3923030 (1975-12-01), Luteran
Kray Gerald L.
Richeson Jr. William E.
Briody Thomas A.
Iseman William J.
Myhre Charles J.
Nelli R. A.
The Magnavox Company
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