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1前言、 自从大多数汽油机不锒嵌气缸套以来,人们往往认为气缸套是发动机中无关紧要的零件。但是,许多高性能汽油机和几乎所有柴油机仍然使用气缸套,其主要功能是:a)活塞导向;b)起密封作用(气、油和水);c)加强燃烧区的冷却。 表1列出了某些或所有功能欠缺对,发动机可能出现的一些不正常现象和引起这种现象的故障诊断,表1显示出重要的设计要点是需要确保降低凸肩周围的应力,降低热应力并使其均匀化。 Bertodo(参考文献1)说明了在处理这些要点时如何选择最佳设计。
1 Introduction Since most gasoline engines do not embed cylinder liners, cylinder liners are often considered to be insignificant parts of the engine. However, many high-performance gasoline engines and almost all diesel engines still use cylinder liners. Their main functions are: a) Piston guidance; b) Sealing (gas, oil and water); c) Enhancing combustion zone cooling. Table 1 lists some or all of the missing functions, some of the possible engine anomalies, and the troubleshooting that caused it. Table 1 shows that important design considerations are the need to ensure that stress around the shoulders is reduced and heat is reduced Strain and homogenize it. Bertodo (Reference 1) explains how to choose the best design when dealing with these points.