小型柴油机燃烧室与喷油器的优化匹配计算分析  

Computational Analysis of Optimal Matching between Combustion Chamber and Fuel Injector in Small Diesel Engines

作　　者：梁清延[1] 官维[2] 曾丽丽[1] 廖升友[1] 覃建文 蓝彬鸿 张长岭 Liang Qing-yan;Guan Wei;Zeng Li-li;Liao Sheng-you;Qin Jian-wen;Lan Bin-hong;Zhang Chang-ling(Guangxi Yuchai Machinery Co.,Ltd.,Guangxi Yulin 537000;School of Mechanical Engineering,Guangxi University,Guangxi Nanning 530004)

机构地区：[1]广西玉柴机器股份有限公司,广西玉林537000 [2]广西大学机械工程学院,广西南宁530004

出　　处：《内燃机与配件》2024年第23期32-34,共3页Internal Combustion Engine & Parts

基　　金：广西重点研发计划(桂科AB22080084);广西科技重大专项(桂科AA22068107)。

摘　　要：燃烧室和喷油器的设计影响柴油机的燃烧效率、动力输出、燃油经济性和排放性能。通过仿真技术,对当前样机的燃烧室和喷油器开展缸内流动和燃烧分析,提出提高标定点功率的燃烧室和喷油器优化匹配方案。结果表明:在保持进排气系统、凸轮轴以及喷油量不变的条件下,通过燃烧室设计的优化以及与喷油器的匹配分析,优化方案实现了有效功率的提升。The design of the combustion chamber and fuel injector significantly impacts the combustion efficiency,power output,fuel economy,and emission performance of diesel engines.Utilizing simulation technology,an in-depth analysis of in-cylinder flow and combustion was conducted on the combustion chamber and fuel injector of the current prototype.Based on this analysis,an optimized matching scheme for the combustion chamber and fuel injector was proposed to enhance the benchmark point power.The results indicated that,while maintaining the intake and exhaust system,camshaft,and fuel injection volume constant,the optimized design of the combustion chamber and its matching with the fuel injector led to an increase in effective power.

关 键 词：柴油机 燃烧室优化 燃油喷射 计算分析 

分 类 号：TK422[动力工程及工程热物理—动力机械及工程]