内燃机是国民经济中最主要的动力机械之一,在船舶、汽车、铁路、矿山、农机等各方面获得广泛应用。随着科学技术的不断发展,内燃机日益呈现出高速度、高负荷、高功率的发展趋势。由于工况条件日趋恶劣苛刻,内燃机的损伤、失效以及可靠性、耐久性等问题也随之日益受到人们的广泛 The internal combustion engine is one of the most important power machinery in the national economy and is widely used in ships, automobiles, railways, mining, agricultural machinery and other fields. With the continuous development of science and technology, internal combustion engines are increasingly showing the development trend of high speed, high load and high power. Due to increasingly harsh working conditions, internal combustion engine damage, failure and reliability, durability and other issues will also be increasingly popular with people