| 不同增压方式下EGR对高压共轨柴油机燃烧和排放的影响 |
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| 引用本文： | 陈贵升,郑尊清,尧命发,李彦飞,赵令猛,袁锋. 不同增压方式下EGR对高压共轨柴油机燃烧和排放的影响[J]. 燃烧科学与技术, 2011, 17(6): 512-520 |
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| 作者姓名： | 陈贵升 郑尊清 尧命发 李彦飞 赵令猛 袁锋 |
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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 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)资助项目(2007CB210002); 国家国际科技合作基金资助项目(S2010GR0703) |
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| 摘 要： | 在一台电控高压共轨柴油机上,采用单级增压、两级增压和可变几何截面增压3种增压方式,进行了高压冷却废气再循环(EGR)的燃烧与排放试验研究.结果表明,柴油机采用可变几何截面增压时,涡前与进气压差较低,泵气损失小,具有良好的燃油经济性；大负荷、等EGR率情况下,单级增压、两级增压和可变几何截面增压的缸内最大爆发压力和主燃烧...
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| 关 键 词： | 柴油机 增压 废气再循环 燃烧 排放 |
Effects of EGR on Combustion and Emissions of a Common-Rail Diesel Engine Based on Different Turbocharging Systems |
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| CHEN Gui-sheng,ZHENG Zun-qing,YAO Ming-fa,LI Yan-fei,ZHAO Ling-meng,YUAN Feng. Effects of EGR on Combustion and Emissions of a Common-Rail Diesel Engine Based on Different Turbocharging Systems[J]. Journal of Combustion Science and Technology, 2011, 17(6): 512-520 |
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| Authors: | CHEN Gui-sheng ZHENG Zun-qing YAO Ming-fa LI Yan-fei ZHAO Ling-meng YUAN Feng |
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| Affiliation: | CHEN Gui-sheng,ZHENG Zun-qing,YAO Ming-fa,LI Yan-fei,ZHAO Ling-meng,YUAN Feng(State Key Laboratory of Engines,Tianjin University,Tianjin 300072,China) |
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| Abstract: | Experimental studies on combustion and emissions were carried on an electronic control common-rail diesel engine which matched single-stage tubocharger(WGT),two-stage turborcharger(2TC) and variable geometry turbocharger(VGT) respectively,and high pressure cooled exhaust gas recirculation(EGR) was employed to decrease NOx emission.The results show that VGT had lower differential pressure between exhaust outlet and engine intake,smaller pumping loss and better fuel economy.At high load with the same EGR rate... |
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| Keywords: | diesel engine turbocharging exhaust gas recirculation(EGR) combustion emissions |
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