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Effect of Emissions from Structural Characteristic of the Reentrant Combustion Chambers on the Heavy - duty Automotive Diesel Engines
Author(s): LIN Xuedong, ZHANG Duojun, ZHU Erxin
Pages: 27-
30,33
Year: 2004
Issue:
5
Journal: INTERNAL COMBUSTION ENGINES
Keyword: 缩口型燃烧室; 流动; 优化匹配; 排放;
Abstract: 利用由AVL公司提供的nRE软件,对重型车用柴油机缩口直喷式燃烧室内的气体流动特性进行了数值模拟计算分析.在此基础上,对不同缩口直径的燃烧室进行了喷射系统参数的优化匹配试验研究.结果表明,采用缩口直喷式燃烧室结构,可有效地组织燃烧室内的气流运动,并通过与喷射系统参数的优化匹配,在动力性和经济性基本保持不变的条件下,有效地改善柴油机的排放特性.
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