Working principle of Car spark plugs
Under the action of high voltage, the air between the center electrode and the side electrode of the spark plug will rapidly ionize, forming positively charged ions and negatively charged free electrons. When the voltage between the electrodes reaches a certain value, the number of ions and electrons in the gas increases like an avalanche, so that the air loses its insulation, and the gap forms a discharge channel, resulting in a "breakdown" phenomenon. At this time, the gas forms a luminous body, that is, "spark". With its thermal expansion, there is also a "patting" sound. The temperature of this spark can be as high as 2000 ~ 3000℃, which is enough to ignite the mixture in the cylinder combustion chamber.
What happens if you don't change the spark plug for a long time?
1.Lack of power, ignition capacity decline
Because the spark plug is used for ignition, if the spark plug is not changed for a long time, it will cause a power drop, when the ignition has a precise time, if the best ignition time is wrong, it will cause a power drop.
2.Incomplete combustion, increase fuel consumption
If the spark plug is not changed for a long time, it will affect the fuel consumption of the car, because the ignition energy is insufficient, the ignition timing is not correct, it will lead to incomplete combustion, and it will inevitably consume more gasoline.
3.Produce carbon deposits, damage the engine
Because the ignition performance is insufficient, resulting in incomplete combustion, resulting in a large amount of carbon deposits on the top of the piston and at the spark plug electrode. If the spark plug is not changed for a long time, excessive carbon deposition will cause knock damage to the engine, and abnormal wear of the cylinder wall and piston will also occur.
Therefore, the harm of not changing the spark plug for a long time is still relatively large, once the service life of the spark plug is up, it is necessary to check and replace the new spark plug in time, do not feel that the driving is not abnormal, otherwise there will be a big problem.
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Main Product:
Engine piston,
cylinder liner,
spark plug,
Ignition coils,
head gasket,
Engine Valve