| 小缸径直喷式柴油机喷雾,燃烧和碳粒生成过程试验研究 |
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| 引用本文： | 赵奎翰 魏建勤. 小缸径直喷式柴油机喷雾,燃烧和碳粒生成过程试验研究[J]. 内燃机学报, 1997, 15(2): 151-158 |
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| 作者姓名： | 赵奎翰 魏建勤 |
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| 作者单位： | 天津大学 |
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| 基金项目： | 国家“攀登计划”和国家自然科学基金 |
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| 摘 要： | 本介绍了作采用同步高速摄影技术和图象分析技术研究柴油机缸内碳粒生成和氧化过程的研究结果。研究结果表明：在柴油机燃烧过程中碳粒最早出现在燃烧室内有空气渗混的富油区；速燃期内高温富碳燃烧区的形状与着火前一时刻喷雾场的形状相吻合；富油区大直径油滴的燃烧裂解和活塞顶隙处外溢燃气的低温燃烧是柴油机产生碳烟微粒排放的主要原因。
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| 关 键 词： | 柴油机 直接喷射柴油机 喷雾 燃烧 碳粒 |
An Investigation of the Formation and Oxidation Process of Soot in the Cylinder of Diesel Engine Using Simultaneous Photography |
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| Zhao Kuihan Wei Jianqin Xi Shuhe Zhang Huiming Liu Wensheng Zhou Zuoheng. An Investigation of the Formation and Oxidation Process of Soot in the Cylinder of Diesel Engine Using Simultaneous Photography[J]. Transactions of Csice, 1997, 15(2): 151-158 |
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| Authors: | Zhao Kuihan Wei Jianqin Xi Shuhe Zhang Huiming Liu Wensheng Zhou Zuoheng |
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| Affiliation: | Tianjin University |
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| Abstract: | This paper reports an investigation of the formation and oxidation process of soot in the cylinder of diesel engine using simultaneous photography and image analysis. The results of the investigation show that soot appears firstly in the rich fuel area where is permeated by air within combustion chamber. The shape of rich soot combustion area at high temperature coincides with the share of spray area before ignition. The cracking of big diameter fuel droplet and the combustion of the overflowing gas from the combustion chamber at low temperature in the piston crown clearance are the main reasons of soot emission from diesel engine. |
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| Keywords: | Diesel Soot Photograph |
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