Analysis of knocking occurs under high speed and high load conditions in a turbocharged gasoline engine
過給ガソリン機関の高回転高負荷運転時に発生するノッキングの解析
- Delivery
- Available on the other site
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- Publication code
- 20264172
- Paper/Info type
- JSAE Transaction
Vol.57 No.2
- Pages
- 226-231(Total 6 p)
- Date of publication
- Mar 2026
- Publisher
- JSAE
- Language
- Japanese
Detailed Information
| Category(J) | 論文 Translation |
|---|---|
| Category(E) | Paper |
| Author(J) | 1) 曾 昌志, 2) 窪山 達也, 3) 森吉 泰生 |
| Author(E) | 1) Changzhi Zeng, 2) Tatsuya Kuboyama, 3) Yasuo Moriyoshi |
| Affiliation(J) | 1) 千葉大学, 2) 千葉大学, 3) 千葉大学 |
| Abstract(J) | 本研究では，市販の過給ガソリンエンジンを用いる実機実験及び数値的解析を実施し，高回転高負荷運転時に発生するノックサイクルにおける自着火が発生するエンドガス領域を着目して解析することで，極めて大きな圧力振動を励起するノッキングを考察した． Translation |
| Abstract(E) | In this study, numerical analysis of abnormal combustion occurring at high-load and high-speed conditions in a production turbocharged spark ignition engine was conducted. A cycle with multiple auto-ignitions followed by a significant pressure oscillation was found in the calculation. The development process of pressure oscillations caused by auto-ignition under high-speed conditions was discussed by comparing auto-ignition events that occur at different locations. The effects of the spatial distributions of temperature and fuel concentrations on autoignition in the unburned zone and the magnitude of the following pressure oscillations were investigated. |
