E303 A STUDY ON THE IN-CYLINDER FLAME PROPAGATION CHARACTERISTICS IN S.I. ENGINES BY USING FLAME VISUALIZATION(SI engine performance)

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概要

• 論文の詳細を見る

• It is well known that combustion stability under idle and part-load conditions directly affect fuel economy and exhaust emission. In practice, there have been a lot of studies so that a significant improvement in combustion stability has been achieved in this research field. However, according to the application of the published results to the development process of mass production engine, there are still many problems which are not solved previously. In this study, initial flame behavior and flame propagation characteristics were investigated statistically in order to optimize combustion chamber shapes in the development stage of mass production of S.I. engines. For this purpose, the authors applied the flame image capturing system to optical single cylinder optical engine. The captured flame images were analyzed effectively by using an image processing program which was developed by the authors and was adopted applying new threshold algorithm instead of conventional histogram analysis. In addition, the cylinder pressure was also measured simultaneously to compare evaluated flame results with cylinder pressure data in terms of the flame propagation characteristics, combustion stability, and cycle-to-cycle combustion variability.

• 一般社団法人日本機械学会の論文
• 2000-10-01

著者

• KIM Jin-Soo

  Technical Engineering Center, Dongbu HiTek

• Kim Jin-soo

  Technical Center Daewoo Motor Co.

• Chon Mun-soo

  Technical Center Daewoo Motor Co.

• Yun Jeong-eui

  Technical Center Daewoo Motor Co.

• Park Jen-hyun

  Technical Center, Daewoo Motor Co.

• Park Jen-hyun

  Technical Center Daewoo Motor Co.

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• EVALUATION OF THE DIRECTINJECTION GASOLINE ENGINE PERFORMANCE VARIOUS COMBUSTION MODES
• E303 A STUDY ON THE IN-CYLINDER FLAME PROPAGATION CHARACTERISTICS IN S.I. ENGINES BY USING FLAME VISUALIZATION(SI engine performance)

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