1．柴油机技术发展趋势经过100多年的发展，尤其自20世纪60年代以来，柴油机的各项指标都有了很大的提高和改进，要想在大范围内改进原有柴油机而形成全新一代的柴油机已很艰难，因此，世界一些著名的内燃机公司于90年代初提出“再设计”概念，即在原型机的基础上，运用新设计 1. Diesel engine technology development trend After more than 100 years of development, especially since the 1960s, diesel engine indicators have been greatly improved and improved, in order to improve the original large-scale diesel engine to form a new generation of diesel engine has Very difficult, therefore, some of the world’s leading internal combustion engine companies in the early 90s put forward the concept of “re-design”, that is, based on the prototype, the use of new design