Ignition system for multi-cylinder 4 cycle engine

Internal-combustion engines – High tension ignition system – Electronic cylinder sequencing

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Details

123640, F02P 900

Patent

active

047022221

ABSTRACT:
An ignition system for four cycle engines generates a first pulse when the crankshaft revolves by a first setting angle from a base position. The second pulse is generated when the crankshaft revolves to a second setting angle which is larger than the first setting by the angle difference between cylinders. The third pulse is generated at the position of a third setting angle which is between the first setting angle and the second setting angle in the position of the crankshaft when the crankshaft revolves twice. The generation of the first and second pulses is stopped or inhibited during the generation of the third pulse, allowing the first pulse to fade away.

REFERENCES:
patent: 3621826 (1971-11-01), Chrestensen
patent: 4170207 (1979-10-01), Boyama

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