Ignition systems for internal combustion engines

Details Ignition systems for internal combustion engines Ignition systems for internal combustion engines

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317/5.35

F02P 3/04 (2006.01) F02P 5/10 (2006.01) F02P 5/145 (2006.01)

Patent

CA 1049609

ABSTRACT OF THE DISCLOSURE A closed loop electronic ignition system for internal combustion engines, in which a comparison is made between a signal derived from a fixed predetermined crank-shaft angle, and a signal derived from the commencement of the second stage of combustion within a cylinder of the engine, and if non-coincidence is detected between the two signals, the ignition timing is either advanced or retarded so as to maintain coincidence between the signals, so that the second stage of combustion always occurs at the fixed predetermined crank angle, the spark then being extinguished by switching the ignition coil "on" at this predetermined crank-shaft angle, irrespective of the speed and load on the engine, as well as all other parameters which can affect the ignition timing.

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