| 车用稀燃电控汽油机排放控制技术研究 |
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| 引用本文： | 刘德新,冯洪庆,刘书亮,王天友,于吉超.车用稀燃电控汽油机排放控制技术研究[J].汽车工程,2004,26(1):31-33. |
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| 作者姓名： | 刘德新 冯洪庆 刘书亮 王天友 于吉超 |
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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： | 国家自然科学基金重点项目(59936130)和天津市自然科学基金重点项目(993803111). |
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| 摘 要： | 应用二次喷油及可变进气技术，形成准均质稀混合气，改善了燃烧过程，扩大了发动机稀燃极限。降低了NOx排放量。综合运用三效催化器和空燃比优化控制技术不仅使HC和CO排放接近零，也使NOx排放进一步降低。采用自主开发的电控系统的稀燃汽油机具有较好的燃油经济性。
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| 关 键 词： | 汽车工程 稀薄燃烧 空燃比 三效催化器 NOx排放量 电控汽油机 排放控制技术 |
A Study on Emission Control Technology of Vehicle EFI Lean Burn Gasoline Engine |
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| Liu Dexin,Feng Hongqing,Liu Shuliang,Wang Tianyou & Yu Jichao Tianjin University,State Key Laboratory of Engine Combustion,Tianjin.A Study on Emission Control Technology of Vehicle EFI Lean Burn Gasoline Engine[J].Automotive Engineering,2004,26(1):31-33. |
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| Authors: | Liu Dexin Feng Hongqing Liu Shuliang Wang Tianyou & Yu Jichao Tianjin University State Key Laboratory of Engine Combustion Tianjin |
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| Institution: | Liu Dexin,Feng Hongqing,Liu Shuliang,Wang Tianyou & Yu Jichao Tianjin University,State Key Laboratory of Engine Combustion,Tianjin 300072 |
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| Abstract: | By using two-stage fuel injection and variable induction technology to form a quasi-homogeneous lean mixture,the combustion process is improved with lean burn air fuel ratio limit extended and NOx emission lowered.And the combination of three-way catalyst and air fuel ratio optimized control technology not only makes the emission of HC and CO close to zero,but also further reduces the NOx emission. |
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| Keywords: | Lean burn Air fuel ratio Three-way catalyst NOx emission |
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