| 冷却废气再循环对发动机性能影响的试验研究 |
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| 引用本文： | 姚春德,敬章超,傅晓光,刘文胜,傅德才.冷却废气再循环对发动机性能影响的试验研究[J].汽车工程,2003,25(6):537-540,568. |
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| 作者姓名： | 姚春德 敬章超 傅晓光 刘文胜 傅德才 |
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| 作者单位： | 1. 天津大学,内燃机燃烧学国家重点实验室,天津,300072
2. 天津内燃机厂,天津,300073 |
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| 基金项目： | 国家自然科学基金资助 (5 0 0 76 0 31) |
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| 摘 要： | 在一台双顶置凸轮轴、16气门的四缸汽油机上，研究了不同结构的EGR进气方式以及不同EGR进气温度对发动机综合性能的影响。结果表明：冷却的EGR可以更大幅度地降低NOx生成量。同时可以获得更好的发动机动力性和经济性。另外，试验结果还表明。对每一个工况来说，两者都存在一个最佳的EGR率。
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| 关 键 词： | 四缸汽油机 发动机 冷却 废气 NOx排放 |
Effects of Cooled EGR on NOx Emissions and Performances of Gasoline Engine |
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| Yao Chunde,Jing Zhangchao,Fu Xiaoguang & Liu Wensheng Tianjin University,State Key Laboratory of Engine Combustion,Tianjin Fu Decai Tianjin Engine Works,Tianjin.Effects of Cooled EGR on NOx Emissions and Performances of Gasoline Engine[J].Automotive Engineering,2003,25(6):537-540,568. |
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| Authors: | Yao Chunde Jing Zhangchao Fu Xiaoguang & Liu Wensheng Tianjin University State Key Laboratory of Engine Combustion Tianjin Fu Decai Tianjin Engine Works Tianjin |
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| Institution: | Yao Chunde,Jing Zhangchao,Fu Xiaoguang & Liu Wensheng Tianjin University,State Key Laboratory of Engine Combustion,Tianjin 300072 Fu Decai Tianjin Engine Works,Tianjin 300073 |
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| Abstract: | The effects of cooled EGR and un-cooled EGR as well as the different ways and different temperatures of EGR entering into cylinder were investigated on the performance and NO x emissions of a four-cylinder gasoline engine with DOHC and 16 valves.The results revealed that the NO x emissions could be reduced dramatically by cooled EGR with the engine power and fuel economy also improved.In addition,there existed a corresponding optimum EGR rate for power,fuel economy and NO x emissions respectively. |
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| Keywords: | Cooled EGR NO x emission Gasoline engine |
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