Electronic ignition timing adjusting system for internal combust

Details Electronic ignition timing adjusting system for internal combust Electronic ignition timing adjusting system for internal combust

1976-03-25

1978-04-25

Cox, Ronald B.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

F02P 504

Patent

active

040857140

ABSTRACT:
An electronic ignition timing adjusting system for an internal combustion engine designed to adjust the ignition timing of the engine through a wide range of speeds from the lower to higher engine rotational speeds. The point at which the crankshaft reaches a predetermined angular position and the point at which a capacitor which starts charging in relation to another angular position of the crankshaft discharges the voltage thereacross to a predetermined value are initially set. Of these two points, that which occurs earlier than the other is selected as the desired ignition point or timing and in this way constant and stable ignition timing is provided at the lower engine rotational speeds, while the ignition timing at the higher engine rotational speeds is adjusted with a high degree of accuracy, thereby providing on the whole the satisfactory ignition timing which follows up or response excellently to changes in the engine rotational speed.

REFERENCES:
patent: 3705573 (1972-12-01), Palazzetti
patent: 3888220 (1975-06-01), Bigalke
patent: 3890944 (1975-06-01), Werner
patent: 3916855 (1975-11-01), Fauser
patent: 3935845 (1976-02-01), Aono
patent: 3939811 (1976-02-01), Sasayama

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