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ELECTRONIC IGNITION SYSTEM ON CONVENTIONAL

conventional ignition systems

In an engine (Otto cycle) with conventional ignition system, spark plug needs a voltage (voltage) that is between 8,000 to 15,000 volts (8 ... 15 kV), to produce the spark. This voltage depends on many factors, including:


wear plugs (opening of the electrodes).


resistance ignition wires.


distributor rotor resistance.


Distance between the high voltage output terminals of the rotor and distributor cap.


Flash Point (motor time).


compression cylinders.


air / fuel mixture.


engine temperature.


are among the most mechanics some confusion in regard to the tension generated by the coil.


Many think that the more powerful outside the coil, the greater the spark. Big mistake!


In fact, the coil is not "sending" the energy you want, and if it is the ignition system that requests (needs).

This request
energy (demand ignition voltage) depends on the items mentioned above.


The ignition system consists of:


Battery


Ignition Switch (switch)


Coil


Distributor


Power Cables


Spark Power

Before knowing the differences between ignition systems and coils, it is important you know as it generates high voltage necessary to produce the spark.


As we know, the voltage of 12 V supplied by the battery is not sufficient to produce the spark at the spark plug, so that tension should be increased until it reaches a sufficient value for "jump" spark between the electrodes.


This increased tension is achieved through the ignition coil, which is only a "transformer", which receives a low battery voltage and high voltage becomes necessary to spark production.




SOURCE: http://www.automotriz.net/