论文部分内容阅读
活塞材料大多数现代发动机具有筒型活塞,装有活塞环的上部作密封用,而下部用来承受侧压力。因此,活塞“裙部”的表面应该尽可能较好地与缸套表面相贴合,并且在摩擦表面之间应该始终保持着一层润滑油层。此外应该限制润滑用的机油进入装活塞压缩环的上
Piston Materials Most modern engines have a barrel type piston with an upper portion of the piston ring for sealing and a lower portion for side pressure. Therefore, the surface of the “skirt” of the piston should fit as closely as possible to the surface of the liner and a lubricating oil layer should always be maintained between the friction surfaces. In addition should limit the lubricating oil into the piston compression ring