| 柴油机燃烧噪声增压影响机理试验分析 |
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| 引用本文： | 李兆文,舒歌群,卫海桥,梁兴雨,张祚. 柴油机燃烧噪声增压影响机理试验分析[J]. 农业机械学报, 2010, 41(4): 31-35. DOI: 10.3969/j.issn.1000-1298.2010.04.007 |
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| 作者姓名： | 李兆文 舒歌群 卫海桥 梁兴雨 张祚 |
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| 作者单位： | 天津大学内燃机燃烧学国家重点实验室,天津,300072 |
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| 基金项目： | 国家自然科学基金，天津市自然科学基金 |
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| 摘 要： | 研究了直喷式柴油机增压对燃烧噪声的影响机理.通过测量稳态和恒转矩增转速瞬态工况增压前后影响燃烧噪声的参数,得出增压前后柴油机燃烧噪声的变化规律.从燃烧室壁面温度、气体动力载荷和压力高频振荡等方面对试验结果进行分析.结果表明:增压后燃烧噪声降低,增压对稳态工况燃烧噪声的降低比对恒转矩增转速瞬态工况更明显,增压在中速中负荷工况下,对燃烧噪声的控制效果较好.
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| 关 键 词： | 直喷式柴油机 燃烧 噪声 增压条件 试验 |
Turbocharged Condition on Combustion Noise of Diesel Engine |
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| Li Zhaowen Shu Gequn Wei Haiqiao Liang Xingyu Zhang Zuo. Turbocharged Condition on Combustion Noise of Diesel Engine[J]. Transactions of the Chinese Society for Agricultural Machinery, 2010, 41(4): 31-35. DOI: 10.3969/j.issn.1000-1298.2010.04.007 |
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| Authors: | Li Zhaowen Shu Gequn Wei Haiqiao Liang Xingyu Zhang Zuo |
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| Affiliation: | State Key Laboratory of Engines/a>;Tianjin University/a>;Tianjin 300072/a>;China |
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| Abstract: | This paper studied the influencing mechanism on combustion noise in DT-diesel engines for turbocharged conditions.By measuring parameters of influencing combustion noise between natural aspirated and turbocharged diesel engine in constant torque and increasing speed transient and steady conditions,the change law of combustion noise in diesel engines was clarified.The testing result was thoroughly analyzed from the point of the combustion chamber' s wall temperature,aerodynamic load and high-frequency oscill... |
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| Keywords: | DI-diesel engine Combustion Noise Turbocharged condition Experiment |
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