With the development of the automotive industry, the performance of spark plugs is constantly improving to enhance the working

Insulators must have good insulation and thermal conductivity, high mechanical strength,

The electrical board of the spark plug ignites the mixture in the cylinder through repeated and continuous power generation. ower output.

1. Quasi type spark plug: The insulator skirt is slightly retracted into the shell end face, and the side electrode is outside the shell end face, making it the most widely used type. 2. Edge protruding spark plug: The insulator skirt is longer and protrudes beyond the end face of the housing. It has the advantages of large heat absorption and good anti fouling ability, and can be directly cooled by the intake air to reduce the temperature, so it is not easy to cause hot ignition, so the thermal adaptation range is wide.

An engine is a device that generates energy by igniting and exploding a compressed mixture in the cylinder,