论文部分内容阅读
美国GM公司电气动力部(EMD)目前正在推销一种经过改进的EB系列发动机,该机型是从原来的645系列二冲程发动机演变而来,由于对若干重要部件进行了新的设计改进,因而使燃油耗降低了2％。这些新的设计特点不仅有助于提高新型的645系列发动机的燃油经济性,同时还允许该机型使用较多种牌号的燃油和机油并有效地进行工作。EMD多年来一直在研制这种发动机,工程师们终于再次提出了可进一步降低燃油消耗和增加功率的各种设计方案。
The U.S. Department of Electrical Engineers GM (EMD) is currently marketing an improved EB series of engines that evolved from the original 645 Series two-stroke engine and due to new design improvements to a number of key components Reduced fuel consumption by 2%. These new design features not only help improve the fuel economy of the new 645 series engines, but they also allow the model to work with more grades and oils and oils. Engineers have been developing this engine for many years and EMD engineers have finally come up with various designs that can further reduce fuel consumption and increase power.