缸盖涡流比对柴油机性能的影响  

Effect of cylinder head swirl ratio on diesel engine performance

作　　者：杨海龙 辛欣 耿磊 赵旭 YANG Hailong;XIN Xin;GENG Lei;ZHAO Xu(State Key Laboratory of Reliability of Internal Combustion Engine,Weifang 261061,China;Weichai Power Co.,Ltd.,Weifang 261061,China)

机构地区：[1]内燃机可靠性国家重点实验室,山东潍坊261061 [2]潍柴动力股份有限公司,山东潍坊261061

出　　处：《内燃机与动力装置》2023年第2期85-89,共5页Internal Combustion Engine & Powerplant

基　　金：山东省重点研发计划项目(2020GXGC011004)。

摘　　要：为提高柴油机制造精度和生产一致性,基于缸盖涡流比设计标准及生产一致性控制方法,进行生产调查,研究缸盖涡流比生产一致性真实分布;通过仿真研究分析缸盖涡流比对柴油机性能的影响,并进行台架试验验证,确定涡流比的最优设计。结果表明:涡流比为1.1~1.3对NO_(x)比排放、483烟度比排放和燃油消耗率的影响均较小,可以保证发动机可靠性、性能和排放均满足要求。In order to improve the manufacturing accuracy and production consistency of diesel engine,based on the design standard of cylinder head swirl ratio and production consistency control method,the production census is carried out to determine the true distribution of cylinder head swirl ratio production consistency.Through simulation calculation,the influence of different cylinder head swirl ratio on diesel engine performance is determined,and bench test is carried out to determine the optimal design of swirl ratio.The results show that when the swirl ratio is between 1.1 and 1.3,the impact on NO_(x)emissions,483 smoke emissions,and fuel consumption rate is relatively small,which can ensure that the engine reliability,performance,and emissions meet the requirements.

关 键 词：涡流比 一致性 NO x排放 483烟度 燃油消耗率 

分 类 号：TK426[动力工程及工程热物理—动力机械及工程]