许思传;陆玉佩;陆渊;赵建洪;程钦
同济大学汽车学院
摘要：换气过程进行的好坏,直接影响着汽油机的动力性、经济性和排放性能。进气和配气系统对汽油机充气效率有着决定性的影响,是汽油机换气过程的主要影响因素之一。本文以某一电喷汽油发动机为研究对象,利用现代先进技术———可变进气歧管长度、可变气门升程和可变气门定时,提出优化方案,对其进行结构设计,利用BOOST模拟计算软件,建立可变的进气和配气系统模型,分析影响进气充量的各种因素,并通过实验进行验证。
关键词： 充气效率;;可变进气;;配气系统
Abstract: Air flow in loop scavenged
process will have directly effect on power performance,fuel economy and
emission of gasoline engine.The charge efficiency is one of the factors in this
process,which is mainly affected by inlet charge system and valve timing
system.In this paper,an electronic injection gasoline engine was chosen to
study,to which the modern advanced technologies such as variable intake
manifold technology,variable valve lift and variable valve timing are
adopted.For that,an optimization plan is raised,a structure is designed.The
simulation with Boost was used to establish a model of variable inlet charge
system and valve timing system and other factors which affect inlet charge are
analyzed.The optimization is also confirmed by experiment.
Keywords: Charge Efficiency;Variable Intake
System;Valve Timing System
参考文献：
[1]朱小慧,顾宏中.模拟一维非定常流动的FVM-TVD法.《内燃机学报》,2001
[2]孟嗣宗,张文海.循环模拟计算在发动机可变进气系统设计中的应用.北京:清华大学.
[3]Adolf H,W Bos.Intake-engine Matching for
high-SpeedCivil Transport Powerplant Design and Analysis,Aircraft
De-sign,1999(2)
[4]AZOURY PH.Engineering applications of
unsteady fluid flow[C].England:John Wiley&Sons,1992.
[5]Kellchl Maekawa,Namleki Ohsawa.Development
of a ValveTiming Control System.SAE paper 890680,1989
�.汽车研究与开发,1997年第3期
[6]张猛,宋德耀,钟芳源.脉动气流条件下消声器特性研究的试验装置及初步结果.噪声与振动控制,1998年第6期.
[7]中田辉男.降低柴油机振动噪声技术的最近动向.国外内燃机,2000年第4期
[8]Ghosh B Bc、haudhury J T、Banerjee T K.控制柴油机噪声的消声器的研制.国外内燃机,2000年第4期
[9]蓝军,陈锦祥,张殿昌,王伟生,王海铭.125mL摩托车发动机噪声分析.小型内燃机,2000年第4期
[10]任彦领.降低柴油机噪声的试验研究.内燃机,1999年第3期
[11]何渝生.主编.汽车噪声控制.机械工业出版社,1995
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