What is a Spark Plug?

[TaliaAnn]

Spark plug is a crucial component in the ignition system of gasoline engines. Its function is to introduce high-voltage electricity into the combustion chamber, allowing it to jump across the electrode gap to generate a spark, thereby igniting the combustible air-fuel mixture in the cylinder. Types of spark plugs include: 1. Standard spark plug; 2. Insulator projection spark plug; 3. Electrode spark plug; 4. Seat spark plug; 5. Pole spark plug; 6. Surface gap spark plug. The working principle of a spark plug is: the electrode repeatedly and continuously generates ignition electricity, producing pulsed high-voltage electricity that breaks down the air between the two electrodes of the spark plug, forming a spark and causing an explosion to ignite the mixed gas in the cylinder, after which the engine starts to operate.