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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.
|Technical Paper||Effects of EGR on Knock-Level of Small Spark Ignition Engine with Gasoline-Base Kerosene-Mixed Fuel|
|Technical Paper||Evaluation of the Effect of EGR on Engine Knock|
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.
Data Sets - Support Documents
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