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A Study of the Factors Determining Knocking Intensity Based on High-Speed Observation of End-Gas Autoignition Using an Optically Accessible Engine
ISSN: 0148-7191, e-ISSN: 2688-3627
Published October 30, 2018 by SAE International in United States
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The purpose of this study was to investigate how autoignition leads to the occurrence of pressure oscillations. That was done on the basis of in-cylinder visualization and analysis of flame images captured with a high-speed camera using an optically accessible engine, in-cylinder pressure measurement and measurement of light emission from formaldehyde (HCHO). The results revealed that knocking intensity tended to be stronger with a faster localized growth speed of autoignition. An investigation was also made of the effect of exhaust gas recirculation (EGR) as a means of reducing knocking intensity. The results showed that the application of EGR advanced the ignition timing, thereby reducing knocking intensity under the conditions where knocking occurred.
CitationIshikawa, T., Takahata, S., Kudo, H., Izako, T. et al., "A Study of the Factors Determining Knocking Intensity Based on High-Speed Observation of End-Gas Autoignition Using an Optically Accessible Engine," SAE Technical Paper 2018-32-0003, 2018, https://doi.org/10.4271/2018-32-0003.
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- Heywood, J.B. , Internal Combustion Engine Fundamentals (McGraw Hill, 1988).
- Maly, R.R. , “State of the Art and Future Trends in S.I. Engine Combustion,” Twenty-Fifth (International) Symposium on Combustion, 111-124, The Combustion Institute, 1994.
- Gaydon, A.G. , The Spectroscopy of Flames Second Edition (London: Chapman and Hall Ltd, 1974).
- Shoji, H., Saima, A., and Ikeda, S. , “Clarification of Abnormal Combustion in a Spark Ignition Engine,” SAE Transactions, Sec. 4 101:1885-1894, 1992.
- Iijima, A. and Shoji, H. , “A Study of Homogeneous Charge Compression Ignition Using Light Emission and Absorption Measurement,” Papers of Society of Automotive Engineers of Japan 38(6):83-88, 2007.