Effect of RON and Cycle-to-Cycle Variation on Knocking Phenomena
燃料のRONとサイクル変動がノッキング現象に及ぼす影響
- Delivery
- Available on this site
- Format
- Price
- Non-members (tax incl.)：￥1,100 Members (tax incl.)：￥880
- Publication code
- 20265088
- Paper/Info type
- Proceedings (Spring)
No.20-26
- Pages
- 1-6(Total 6 p)
- Date of publication
- May 2026
- Publisher
- JSAE
- Language
- Japanese
- Event
- 2026 JSAE Annual Congress (Spring)
Detailed Information
| Author(J) | 1) 清水 大世, 2) 今川 裕貴, 3) 奥山 勝太, 4) 桑原 一成 |
|---|---|
| Author(E) | 1) Taisei Shimizu, 2) Yuki Imagawa, 3) Shota Okuyama, 4) Kazunari Kuwahara |
| Affiliation(J) | 1) 大阪工業大学大学院, 2) 大阪工業大学大学院, 3) 大阪工業大学大学院, 4) 大阪工業大学 |
| Affiliation(E) | 1) Osaka Institute of Technology, 2) Osaka Institute of Technology, 3) Osaka Institute of Technology, 4) Osaka Institute of Technology |
| Abstract(J) | 強いノックが発生するサイクルでは未燃領域自着火の直前に主燃焼が抑制されることが知られ，これは火炎伝播と自着火反応の中間生成物の相互作用に因るものと考えられている．冷炎反応の強度が異なる様々な燃料を用いて実機運転を行い，この現象の本質やこの現象が燃焼位相とノック強度の関係に及ぼす影響に検討を加える． Translation |
| Abstract(E) | When intense knock occurs in spark-ignition engines, the main combustion decelerates immediately before unburned-zone autoignition. It has been considered that the deceleration is caused by the interaction between flame propagation and intermediate products of unburned-zone autoignition reactions as formaldehyde. In the present study, knock-limit engine operation is carried out using different fuels with the RON's of 85 to 120, and autoignition process is computed for the fuels using a detailed reaction mechanism. The essential of the interaction and the effect of the deceleration on the relationship between combustion phase and knock intensity are discussed. |
