| 基于VGT的EGR对电控柴油机影响的试验研究 |
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| 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 |
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| 作者姓名： | 王浒 尧命发 郑尊清 林铁坚 |
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| 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 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 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.
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| 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 |
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| 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 |
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| Authors: | WANG Hu YAO Ming-fa ZHENG Zun-qing LIN Tie-jian |
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| Affiliation: | 1.State Key Laboratory of Engines;Tianjin University;Tianjin 300072;China;2.Yuchai Group Company Limited;Yulin 537005;China |
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| 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... |
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| Keywords: | Diesel engine VGT EGR Emission |
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