Forced frequency ignition system for internal combustion engines

Abstract

An ignition system (10) for an internal combustion engine has a power supply, a transformer (22) having first and second primary windings (32 and 33) and a secondary winding (30), extending from the secondary winding and adapted to A connector for terminal connection of a spark plug (18) of an internal combustion engine, and an electronic ignition timing circuit (42) cooperating with a transformer to activate and deactivate voltage to the first and second primary windings. The first and second primary windings are connected to the power supply such that the transformer produces an AC voltage output from the secondary windings between 1 kHz and 100 kHz and at a voltage of at least 20 kV. A forced push-pull inverter (82) works in conjunction with an electronic ignition timing circuit to fix the frequency of the voltage to the first and second primary windings.

Description

technical field [0001] The present invention relates to internal combustion engines. More specifically, the present invention relates to electrical ignition devices for igniting fuel within internal combustion engines. More specifically, the present invention relates to ignition coils for applying an alternating voltage to ignite a spark plug in an internal combustion engine. Background technique [0002] Most internal combustion engines have some type of ignition circuit to create a spark inside the cylinder. The spark causes the fuel in the cylinder to burn to drive the piston and the attached crankshaft. Typically, an engine includes a plurality of permanently mounted magnets mounted on a flywheel of the engine and a charging coil mounted on the engine casing near the flywheel. As the flywheel spins, the magnets pass over the charging coils. A voltage is thereby generated at the charging coil and used to charge the high-voltage capacitor. The high voltage charge on t...

AI Technical Summary

Problems solved by technology

However, the method of extending the arc presents problems for the end user

First, the mechanism is actually electronically complex because multiple control mechanisms must exist in the form of two independent arc mechanisms

Second, no method is given for automatically sustaining the arc under repeated interruption conditions

Also, these mechanisms do not necessarily provide a low quality and small size single functional block unit that contains all the necessary functions

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