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The IDI system operates according to the rules of electromagnetism described by Faraday's Law of Induction. High voltage is obtained by causing an abrupt change of the magnetic flux in the ignition coil. A basic IDI system consists of an ignition coil, an ignition IGBT, a drive circuit, a spark plug, and a control unit.
The function of a spark plug. The ignition system on petrol-driven engines – in diesel engines – is external: during the compression combustion of the compressed fuel-air mixture is an electrical spark produced by the spark plug. It of the spark plug to generate this spark. Created by voltage produced by the ignition coil, it leaps between ...
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The top of the spark plug contains a terminal to connect to the . ignition system. The exact terminal construction varies depending on the use of the spark plug. Most passenger car spark plug wires snap onto the terminal of the plug, but some wires have . spade connectors which are fastened onto the plug under a nut.
This lowers the spark voltage, secure reliable spark, reduces the quenching effect, and improves ignition performance. Iridium, like platinum, is a precious metal and has extraordinarily superior properties for a spark plug electrode, for example high-temperature withstand, high strength, and low resistance.
The 2019 NGK digital automotive spark plug catalog provides detailed information on various spark plugs and their applications for different vehicles.
Iridium Power spark plugs are ideally suited for high-power and high speed engines, such as those used in motorcycles, but also high performance cars, snowmobiles and jet skis. Patented Ø 0.4 mm iridium U-Groove Taper cut Ø 0.4 mm iridium centre electrode Ø 0.7 mm platinum needle ground electrode. 53.
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The 8 parts of a spark plug. 1. Terminal. The connection terminal is usually an SAE ‘barrel’ shaped connection, a 4 mm thread or a ’cup design’. The high tension ignition lead or a pencil coil is plugged onto the terminal. This connection allows the high voltage to be transferred to the firing end of the spark plug. 2.
