火花塞的功能是在正确的时间、最佳的点火位置提供给发动机一个性能符合要求的火花,点燃燃烧室内的可燃混合气,以保证发动机正常运转。火花塞和发动机匹配的好坏直接影响经济性和动力性。使用火花塞时,应该注意以下几个问题:1.按不同的发动机型式选择火花塞在汽油机中,要根据发动机的功率、冷却方式、压缩比和转速等参数来选定。一般对于 The function of the spark plug is to provide the engine with a spark of satisfactory performance at the right time and at the optimum ignition position, igniting the combustible mixture in the combustion chamber to ensure the normal operation of the engine. Spark plug and engine match directly affect the economy and power of the good or bad. When using the spark plug, you should pay attention to the following questions: 1. Select the spark plug according to different engine type in the gasoline engine, according to the engine power, cooling, compression ratio and speed and other parameters to select. Generally for