Ignition timing control system for internal combustion engine

Internal-combustion engines – Charge forming device – Fuel injection system

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123427, 123602, F02P 504

Patent

active

045165548

ABSTRACT:
An ignition timing control system for an internal combustion engine in which the ignition timing is kept at a retarded constant level within a lower engine speed range and a higher engine speed range and is kept at an advanced constant level within a middle engine speed range. Within transitional engine speed ranges between the lower and middle engine speed ranges and between the middle and higher engine speed ranges, the ignition timing is changed generally proportionate to and inversely proportionate to the instantaneous engine speed, respectively.

REFERENCES:
patent: 4292943 (1981-10-01), Kyogoku et al.
patent: 4398516 (1983-08-01), Momoyama
patent: 4407246 (1983-10-01), Boyama

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