气门包角对汽油机性能影响的仿真与优化  

Simulation and Optimization of Influence of Valve Cover Angle on Gasoline Engine Performance

作　　者：胡艳[1] 任龙军 吴焱[1] 黄昭明 HU Yan;REN Longjun;WU Yan;HUANG Zhaoming(Department of Mechanical and Automotive Engineering,Anhui Vocational and Technical College of Industry and Trade,Huainan Anhui 232007,China;School of Mechanical Engineering,Wanjiang University of Technology,Maanshan Anhui 243031,China)

机构地区：[1]安徽工贸职业技术学院机械与汽车工程系,安徽淮南232007 [2]皖江工学院机械工程学院,安徽马鞍山243031

出　　处：《佳木斯大学学报（自然科学版）》2022年第4期71-75,共5页Journal of Jiamusi University：Natural Science Edition

基　　金：2021年高校优秀人才支持计划项目(gxyqZD2021162)。

摘　　要：针对一款进气歧管喷射的废气涡轮增压汽油机建立了一维性能的仿真计算模型,进行了不同进排气包角对汽油机性能影响的优化仿真计算及对比研究,并对优化结果进行了试验验证。研究结果表明,所建立的一维性能计算容腔模型和管道模型均能满足计算精度要求,其中容腔模型更为准确;汽油机低速运行时,应采用较大的进气包角和较小的排气包角,而汽油机高负荷运行时,采用尽可能大的进气包角和较大的排气包角能获取更为优越的经济性和动力性;汽油机转速、进气量以及循环残余废气量是汽油机性能变化的重要影响因素。For port fuel injection turbocharged gasoline engine,one dimensional model was established,and comparing research about effects of different intake and exhaust event angle on gasoline engine performances have been done by means of optimizing simulation.Bench testing was done to review the optimized results.The results show that the chamber and pipe model can both meet the accuracy requirements of calculation,and the chamber model has better accuracy.When operating at low speed,bigger intake event angle and smaller exhaust angle should be adopted,while at high speed,bigger exhaust event angle and suitable bigger intake event angle can be chosen to get improved economic and power performances.The engine speed,flow mass and cyclical residual gas are of significant factors which influence its performances.

关 键 词：一维性能 仿真优化 进气包角 排气包角 汽油机性能 

分 类 号：TK421.5[动力工程及工程热物理—动力机械及工程]