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稀燃汽油机运转工况对吸附还原法降低NO_x排放的影响 被引量：2

Effect of the Operation Conditions of the Lean Burn Gasoline Engine on Reduce the NO_x Emissions by Adsorber-Reduction Catalyst
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摘要 应用传统的三效催化器和稀燃NOx吸附还原催化器组成的新型复合尾气催化系统对稀燃发动机不同转速和负荷工况下的排放特性和燃油经济性的影响进行了实验研究.结果表明:稀燃发动机转速对其有害气体排放和燃油经济性的影响与稀燃吸附还原催化转化器稀燃运行时间与浓燃还原运行时间比值大小和绝对时间大小有关.稀燃发动机负荷大小是影响稀燃发动机排放特性和燃油经济性的主要因素,负荷越大,NOx有害气体排放浓度越高,NOx催化转化率越小,燃油经济性越好. The effects of the new catalyzing system consisting of traditional three way catalyst converter and adsorber-reduction catalyst converter on the emission characteristics and fuel economy of lean burn SI engine operated under different speeds and loads were investigated. The results show that the effects of speed on the exhaust gas emission and fuel economy are related with the ratio value and the absolute time of lean burn and rich burn. The engine load is the major factor affecting the emission characteristics and fuel economy of lean burn SI engine. With the increase of engine load, the concentration of NOx emission becomes higher, the NOx conversion decreases and fuel economy improves.
作者 李志军 孙小明 马小强 李洧 方茂东 刘书亮
机构地区 天津大学内燃机燃烧学国家重点实验室 天津内燃机研究所 中国汽车技术研究中心
出处 《燃烧科学与技术》 EI CAS CSCD 北大核心 2005年第3期224-229,共6页 Journal of Combustion Science and Technology
基金 国家自然科学基金资助项目(50276042) 国家自然科学重点基金资助项目(59936130).
关键词 稀燃 汽油机 吸附还原法 氮氧化物 排放 Catalysts Fuel economy Gas emissions Gasoline Nitrogen oxides Reduction
分类号 TK411.5 [动力工程及工程热物理—动力机械及工程]
  • 相关文献

参考文献10

  • 1Strelan W, Kreuzer T, Leyrer J, et al. New developments in lean NOx catalysis for gasoline fueled passenger cars in Europe [A]. In:SAE Paper[C]. 1996,962047.
  • 2Lumsden Grant, Eddleston David, Skyes Richard. Comparing lean burn and EGR[A]. In: SAE Paper [C]. 1997,970505.
  • 3Iwamoto Y, Noma K, Nakayama O, et al. Development of gasoline direct Injection [A]. In: SAE Paper [C] . 1997,970541.
  • 4Stokes J, Lake T H, Christle M J. Improving the NOx/fuel economy tradeoff for gasoline engine with CCVS combustion system[A]. In:SAE Paper[C]. 1994,940482.
  • 5Natoto Miyoshi, Toshiaki Tanaka, Jun Harada,et al. Development of new concept three-way catalysts for automotive lean burn engines[A]. In:SEA Paper[C]. 1995,950809.
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  • 9李志军,张广宇,刘书亮,王莉,刘德新,刘伍权.降低准均质稀燃汽油机NO_x排放的电控系统研制[J].燃烧科学与技术,2004,10(5):400-404. 被引量：5
  • 10李志军,刘书亮,毕风荣,刘伍权,王莉.用吸附还原与三元催化器组合降低富氧汽油机NO_x的排放[J].天津大学学报（自然科学与工程技术版）,2004,37(9):765-768. 被引量：4

二级参考文献10

  • 1Shi Shaoxi.Recent progress in combustion technologies for automotive engine[A].In: Proceedings of the Second Asia-Pacific Conference on Combustion[C]. Taiwan,China:1999.
  • 2Hiromistu Ando, Kazunari Kuwahara. A keynote on future combustion engines[A].In:SAE Paper[C].Detroit:SAE,2001-01-0248,2001.
  • 3Yuan Ying. Motor vehicle emission control in China[A].In:Diesel Vehicle Exhaust Treatment Technology and Motorcycle Emission Workshop[C].Hongkong,China:1999.
  • 4Liu Shuliang,Pei Pucheng,Fan Yongjian. Twice electronic fuel injection(TEFI)-A new idea of lean combustion in S.I.Engine[A].In:SAE Paper[C].Detroit: SAE,2000-01-1087,2000.
  • 5Gregory D,Marshall R A, Eves B, et al. Evolution of lean NOx-traps on PFI and DISI lean burn vehicles[A].In:SAE Paper[C].Detroit:SAE,1999-01-3498,1999.
  • 6Brogan M S,Clark A D,Brisley R J. Recent progress in NOx-trap technology[A].In:SAE Paper[C].Detroit:SAE, 980933,1998.
  • 7Lake T H, Stokes J, Pendlebury K J. Development experience of a multi-cylinder CCVS engine[A]. In: SAE Paper [C]. 1995,950165.
  • 8Lumsden G, Eddleston D, Sykes R. Comparing lean burn and EGR[A]. In:SAE Paper[C]. 1997,970505.
  • 9Iwamoto Y, Noma K, Nakayama O, et al. Development of gasoline direct injection[A]. In: SAE Paper[C]. 1997,970541.
  • 10Jobson E, Prels M, Leveronl E, et al. Research results on processes and catalyst materials for lean NOx conversion [A].In: SAE Paper[C]. 1996, 962041.

共引文献7

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燃烧科学与技术
2005年 第3期

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