What is the working principle of a spark plug?

1 Answers
NathanFitz
07/30/25 8:43am
Spark plug working principle is: The electrode repeatedly and continuously generates ignition electricity, creating pulsed high voltage that breaks down the air between the two electrodes of the spark plug, forming a spark and generating an explosion to ignite the mixed gas in the cylinder, after which the engine starts to operate. The function of the spark plug is: to introduce high voltage electricity into the combustion chamber and make it jump across the electrode gap to produce a spark, thereby igniting the combustible mixed gas in the cylinder. Types of spark plugs include: 1. Standard spark plug; 2. Insulator projected spark plug; 3. Electrode spark plug; 4. Seat spark plug; 5. Pole spark plug; 6. Surface gap spark plug.
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