| 火花点火发动机燃烧循环变动特性的高速纹影摄影研究 |
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| 引用本文： | 李兴虎 蒋德明. 火花点火发动机燃烧循环变动特性的高速纹影摄影研究[J]. 西安交通大学学报, 1993, 27(5): 95-100,110 |
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| 作者姓名： | 李兴虎 蒋德明 |
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| 作者单位： | 西安交通大学动力机械工程系(李兴虎，蒋德明)，西安交通大学动力机械工程系(沈惠贤) |
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| 摘 要： | 介绍了运用高速纹影摄影对火花点火发动机循环变动特性的研究。确定了纹影摄影胶片中可用于循环变动研究的部分，并对其进行了分析。结果表明：火花点火发动机的燃烧循环变动在燃烧一开始就已产生，并且表现为火焰中心、火焰速度、当量火焰半径、点火延迟时间、临界火地径、临界火焰速度等的变动。
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| 关 键 词： | 发动机 燃烧 纹影摄影 循环变动 |
STUDY ON CHARACTERISTICS OF CYCLE-TO-CYCLE COMBUSTION VARIATION IN A SPARK IGNITION ENGINE BY USING HIGH SPEED SCHLIEREN PHOTOGRAPH |
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| Li Xinghu Jiang Deming Shen Huixian. STUDY ON CHARACTERISTICS OF CYCLE-TO-CYCLE COMBUSTION VARIATION IN A SPARK IGNITION ENGINE BY USING HIGH SPEED SCHLIEREN PHOTOGRAPH[J]. Journal of Xi'an Jiaotong University, 1993, 27(5): 95-100,110 |
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| Authors: | Li Xinghu Jiang Deming Shen Huixian |
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| Affiliation: | Department of Power Machinery Engineering |
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| Abstract: | This paper studies the characteristics of cyclic combustion variation in spark ignition engines by using high speed schlieren photographs. How to determine the parts of schlieren photograph which can be used for the study of cyclic combution variations and their analyses are presented. The results indicate that cyclic combustion variations originate during the initial burn period and the variations are consistent with the change of the flame center positions, flame velocity, flame radius, ignition delay time,critical radius and critical velocity. |
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| Keywords: | spark ingition engine combustion cyclic variation schieren photograph |
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