| 车用稀燃天然气(CNG)发动机的开发研究 |
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| 引用本文： | 耿聪,张欣,刘溧.车用稀燃天然气(CNG)发动机的开发研究[J].小型内燃机与摩托车,2004,33(6):19-22. |
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| 作者姓名： | 耿聪 张欣 刘溧 |
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| 作者单位： | 北京交通大学机械与电子控制工程学院,北京,100044 |
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| 摘 要： | 采用稀薄燃烧方式，是降低发动机排放和改善经济性的有效手段。在以柴油机为原型机开发的单燃料天然气发动机中，对进气系统和燃烧系统等进行了优化设计，采用了增压中冷、多点顺序喷射、高能直接点火以及综合电控技术，使之达到空燃比的精确控制和高能点火，以实现天然气的稀薄燃烧。同时对研制的样机在稀薄燃烧状态下的性能进行了试验研究，获得了良好的经济性和排放性能。
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| 关 键 词： | 稀燃 稀薄燃烧 多点顺序喷射 增压中冷 点火 柴油机 天然气发动机 车用 CNG 电控技术 |
| 修稿时间： | 2004年3月8日 |
Research on Lean Burn CNG Vehicle Engines |
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| Geng Cong Zhang Xin Liu Li School of Mechanical and Control Engineering,Beijiug Jiaotong University.Research on Lean Burn CNG Vehicle Engines[J].Small Internal Combustion Engine and Motorcycle,2004,33(6):19-22. |
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| Authors: | Geng Cong Zhang Xin Liu Li School of Mechanical and Control Engineering Beijiug Jiaotong University |
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| Affiliation: | Beijing 100044 |
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| Abstract: | Lean-burn combustion is an effective way for engine to reduce harmful emissions and improve fuel economy.To fit Lean-burn combusting characteristics for its need of higher accuracy of air/fuel ratio controlling and higher igniting energy,inlet system and combustion system were optimized in the development of a single-fuel CNG engine which was reconstructed from a diesel.Some high techniques were adopted, such as super-charger with mid-cooling, sequential multi-point injection, direct high-energy ignition and integrated electronic control.Characteristics of Lean-burn combusting of this CNG engine were studied experimentally.High performance in fuel economy and emissions was acquired. |
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| Keywords: | Lean burn CNG engine Multi-point injection High-energy ignition |
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