摘要配气机构作为内燃机的重要组成部分，其设计合理与否直接关系到内燃机的动力性能、经济性能、排放性能及工作的可靠性、耐久性
随着内燃机高功率、高速化，人们对其性能指标的要求越来越高，要求其在高速运行的条件下仍然能够平稳、可靠地工作，因而对其配气机构提出了更高的要求
配气凸轮型线是配气机构的核心部分，配气凸轮型线设计是配气机构优化设计的重要途径之一
模拟计算和实验讨论是内燃机配气机构讨论两种重要手段
关键词：内燃机；配气机构；凸轮型线；ABSTRACT The valve train is one of the most important mechanisms in a internal combustion engine, whether the performances are good or bad, that affecting the power performance, economic performance, emissions performance of the engine, as well as affecting the reliability and wear performances of the whole engine
Along with the requests of the engine’s high power, super-speed, people demand a higher index
That is, when the engine runs under a high speed, it can still work steadily and dependably, which demand that the valve train system should have a high performance
