| 三元催化转换器改进及其对发动机性能的影响 |
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| 引用本文： | 王银山,贾同国,石传龙,岳东鹏.三元催化转换器改进及其对发动机性能的影响[J].天津工程师范学院学报,2011,21(2). |
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| 作者姓名： | 王银山 贾同国 石传龙 岳东鹏 |
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| 作者单位： | 天津职业技术师范大学汽车与交通学院,天津,300222 |
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| 基金项目： | 天津市科技计划项目(2009GJA10018) |
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| 摘 要： | 对应用于GW491QE型汽油发动机的三元催化转换器进行了改进,载体采用球形端面,增加了载体孔数,壳体前端锥采用两个扩张角,壳体两端采用缩颈处理。改进后的三元催化转换器增加排气气流进入载体前流速的均匀性,充分发挥了整个载体的转换效率,有效防止了衬垫过早脱落,使三元催化转换器的使用寿命得到提高。试验结果表明,改进后的三元催化转换器,对发动机的动力性和经济性影响较小,对HC、CO和NOx的转换效率较高,三元催化转换器与该发动机在动力性、经济性和排放性方面达到良好匹配。
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| 关 键 词： | 三元催化转换器 结构改进 试验 |
Research on the influence of the improved three-way catalytic converter to engine performance |
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| WANG Yin-shan,JIA Tong-guo,SHI Chuan-long,YUE Dong-peng.Research on the influence of the improved three-way catalytic converter to engine performance[J].Journal of Tianji University of Technology and Education,2011,21(2). |
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| Authors: | WANG Yin-shan JIA Tong-guo SHI Chuan-long YUE Dong-peng |
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| Institution: | WANG Yin-shan,JIA Tong-guo,SHI Chuan-long,YUE Dong-peng(School of Automobile and Transportation,Tianjin University of Technology and Education,Tianjin 300222,China) |
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| Abstract: | The structures of three-way catalytic converter used in GW491QE engine are improved.The front globose end surface is used in the carrier of three-way catalytic converter,and the number of pores in the carrier is increased.The front cone of the shell has two expanding angles.Two-terminals of the shell are necked.After the structures of three-way catalytic converter are improved,the speed of gas becomes more uniform before entering the carrier.So the conversion efficiency of the whole carrier is brought into ... |
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| Keywords: | three-way catalytic converter improving structures experiment |
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