高云鹏;谢兴旺;温象龙;

1:山东华源莱动内燃机有限公司

    摘要：根据国内中、小型拖拉机发展需求,我公司为了适应市场需求,在吸取、借鉴国内 外先进技术的基础上,自主开发了KM390BT型柴油机,通过优化燃烧系统的活塞、喷油泵、喷油器和进排气系统的气缸盖进气道,通过大量的正交试验和优化匹配,使该机型的性能指标处于同类机型先进水平,而且达到了GB20891国Ⅱ排放限值。这一机型添补了企业90缸径这一档的空白,增强了企业的机型覆盖面,提升了企业市场竞争能力。

    关键词： KM390BT;;优化;;性能;;排放

    Abstract: Introduced the international advanced engine technology,a KM390BT diesel engine is developed to meet the market demand of small and middle power tractors.Fuel system and intake system has been optimized,such as piston,fuel injecting pump,injector and the intake and exhaust ports of the cylinder head.By many orthogonal tests and optimizing configuration,the engine performance has been improved close to advanced level of the similar engines and meet the emission limit of GB20891 stage II.The engine fills in the gap of engines of90mmbore and improves the company much competitive.

    Keywords: KM390BT;Optimization;Performance;Emission

参考文献：

[1]柴油设计手册编辑委员会.柴油设计手册(中).中国农业机械出版社.

[2]邓东密,邓杰.柴油机喷油系统,1996.

[3]蒋德明主编.内燃机原理(第二版).内燃机科技丛书,1988.