Ignition timing controller for a breakerless ignition system

Internal-combustion engines – Intake manifold – Manifold tuning – balancing or pressure regulating means

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123148E, F02P 504

Patent

active

039371905

ABSTRACT:
An ignition timing controller for a breakerless ignition system in use for an internal combustion engine, comprising a semiconductor switching means to control a primary current of an ignition coil and a signal source to supply a control signal to said semiconductor switching means, said signal source including a plurality of signal generators to generate signal voltages having phase difference between one and another in timing with rotation of said engine. Voltage composing means is provided which selectively composes the signal voltages from said respective signal generators at a selected ratio of one to another and which supplies said control signal to said semiconductor switching means.

REFERENCES:
patent: 3405347 (1968-10-01), Swift
patent: 3524438 (1970-08-01), Janisch
patent: 3661132 (1972-05-01), Farr

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