窦玉香,叶义,梁金城 ,庄龙平 ,Marathe   

    摘要：本文介绍了一款两缸直喷柴油机的研发设计。重点解决该功率段柴油机在采用自然吸气进气方式情况下，通过对部分零部件进行优化设计，改善性能的同时，降低气体及颗粒物的排放，最终达到降低排放、满足特殊国家和地区客户需求和提高经济性的目的。

    关键词：两缸直喷柴油机；性能；排放；特殊国家和地区 

    Abstract: This paper introduces the research and design of one two-cylinder direct injection engine. Depending on optimization of some components, it improves performance of natural aspirated engines at the power range, at the same time, decrease gas and particulate emissions so as to meet the demands of customers from some special countries and regions and to improve economy.   

     Key Words: Two-cylinder direct Injection diesel Engine;  performance; emission; special country and region.