| 喷油策略对柴油机燃烧噪声及排放影响的模拟研究 |
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| 引用本文： | 玄铁民,何志霞,蒋兆晨,闫毅.喷油策略对柴油机燃烧噪声及排放影响的模拟研究[J].车用发动机,2012(5). |
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| 作者姓名： | 玄铁民 何志霞 蒋兆晨 闫毅 |
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| 作者单位： | 江苏大学能源与动力工程学院,江苏镇江,212013 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 进行了通过优化高压共轨系统燃油喷射策略来改善缸内燃烧排放性能的研究,基于AVL Fire软件,针对1015柴油机开展了不同燃油喷射策略下的喷雾燃烧和排放的数值模拟,建立了数学模型并验证了模型的可靠性,分析了一次预喷的预喷时刻、预喷量、主喷提前角对燃烧噪声及排放的影响,揭示了各参数对燃烧噪声和NOx及炭烟生成的影响机理,为进一步优化预喷方案提供了理论依据。
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| 关 键 词： | 柴油机 燃油喷射 控制策略 燃烧噪声 排放 |
Study on Influence of Fuel Injection Strategy on Diesel Engine Combustion Noise and Exhaust Emission |
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| XUAN Tie-min
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HE Zhi-xia
,
JIANG Zhao-chen
,
YAN Yi.Study on Influence of Fuel Injection Strategy on Diesel Engine Combustion Noise and Exhaust Emission[J].Vehicle Engine,2012(5). |
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| Authors: | XUAN Tie-min HE Zhi-xia JIANG Zhao-chen YAN Yi |
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| Abstract: | The research of improving in-cylinder combustion and emission performance by optimizing the high-pressure common rail fuel injection strategy was carried out.The spray,combustion and emission characteristics of 1015 diesel engine under different fuel injection strategies were simulated with the numerical method,the mathematical model was built and its reliability was verified,the influences of pilot injection timing,pilot injection quantity and main injection advance angle on combustion noise and emission were analyzed,and the influenced mechanisms of all parameters on combustion noise,NOx and soot formation were revealed,which brought the theoretical reference for optimizing the pilot injection scheme. |
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| Keywords: | diesel engine fuel injection control strategy combustion noise emission |
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