Ignition system for an internal combustion engine

Details Ignition system for an internal combustion engine Ignition system for an internal combustion engine

1987-10-28

1989-08-15

Argenbright, Tony M.

Internal-combustion engines

High tension ignition system

Using capacitive storage and discharge for spark energy

123149C, F02P 308

Patent

active

048564885

ABSTRACT:
An ignition system for an internal combustion engine of the invention, which is adapted to periodically charge a capacitor by using as a power source a magnetogenerator in association with the internal combustion engine and ignite the internal combustion engine by discharge from the capacitor and which is provided with a capacitor charged by a first half cycle in an output signal from a signal coil and a zero-cross detector for detecting the zero-cross point where the output signal of the signal coil transfers from a first half cycle to a latter half cycle, so that, among continuous one cycle waveforms of the signal coil, voltage at the first half cycle is charged at the capacitor, the capacitor discharging at the timing detected by the zero-cross detector and the discharge voltage is used as an ignition timing signal, whereby the ignition timing can be kept about constant without creating any malfunction caused by a noise signal and also regardless of variation in the number of revolution of the internal combustion engine.

REFERENCES:
patent: 3805759 (1974-04-01), Fitzner
patent: 4202305 (1980-05-01), Wolf
patent: 4558683 (1985-12-01), Okuda
patent: 4718394 (1988-01-01), Honjoh et al.

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