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基于VGT的EGR对电控柴油机影响的试验研究
引用本文:王浒,尧命发,郑尊清,林铁坚. 基于VGT的EGR对电控柴油机影响的试验研究[J]. 内燃机学报, 2009, 27(2): 109-115
作者姓名:王浒  尧命发  郑尊清  林铁坚
作者单位:天津大学内燃机燃烧学国家重点实验室,天津,300072;广西玉柴机器股份有限公司,广西,玉林537005
基金项目:国家高技术研究发展计划(863计划) 
摘    要:在一台电控共轨柴油机上,进行了基于可变涡轮截面增压器(VGT)控制的废气再循环(EGR)对柴油机燃烧、性能和排放影响的试验研究.系统研究了VGT开度、EGR率和喷油参数对柴油机性能和排放的影响.研究表明,采用基于VGT控制的EGR系统,调整VGT叶片位置,可以改变EGR率,实现最高43.2%的EGR率,从而有效地降低NOx;在调整优化喷油参数后,柴油机的排放有了很大的改善,烟度有较大幅度的降低,经过优化,气体排放可满足国Ⅳ排放法规的要求,十三工况加权当量比油耗比原国Ⅲ柴油机降低了4.2%,但是,采用EGR方案缸内最大爆发压力明显增大.

关 键 词:柴油机  可变涡轮增压  废气再循环  排放

The Experiment Study of EGR Based on VGT on Performance and Emission of a Common Rail Diesel Engine
WANG Hu,YAO Ming-fa,ZHENG Zun-qing,LIN Tie-jian. The Experiment Study of EGR Based on VGT on Performance and Emission of a Common Rail Diesel Engine[J]. Transactions of Csice, 2009, 27(2): 109-115
Authors:WANG Hu  YAO Ming-fa  ZHENG Zun-qing  LIN Tie-jian
Affiliation:1.State Key Laboratory of Engines;Tianjin University;Tianjin 300072;China;2.Yuchai Group Company Limited;Yulin 537005;China
Abstract:A VGT turbocharger was applied to an electronic control common rail diesel engine to investigate the impact of VGT,EGR and injection parameters on diesel engine combustion,performance and emission.The result showed that: applying the EGR system based on VGT,the change of VGT vane position can effectively affect EGR ratio,and could realize the highest 43.2% EGR ratio in some conditions,which can effectively reduce NOx emission.Combined with optimized injection parameters,the engine's emissions have greatly i...
Keywords:Diesel engine  VGT  EGR  Emission  
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