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  • Summary & Details

Study on Modeling of Combustion Chamber Deposits in High-Efficiency Gasoline Spark-Ignition Engines (First report)

高効率ガソリン火花点火機関における燃焼室内デポジットのモデル化研究(第1報)

Detailed Information

Category(J)論文

Translation

Category(E)Paper
Author(J)1) 本橋 一馬, 2) 中嶋 匠, 3) 大草 見斗, 4) 境田 悟志, 5) 田中 光太郎, 6) 金野 満, 7) 木下 幸一, 8) 阿部 容子, 9) 小玉 聡, 10) 森 伸介
Author(E)1) Kazuma Motohashi, 2) Takumi Nakajima, 3) Kento Okusa, 4) Satoshi Sakaida, 5) Kotaro Tanaka, 6) Mitsuru Konno, 7) Koichi Kinoshita, 8) Yohko Abe, 9) Satoshi Kodama, 10) Shinsuke Mori
Affiliation(J)1) 茨城大学, 2) 茨城大学, 3) 茨城大学, 4) 茨城大学, 5) 茨城大学, 6) 茨城大学, 7) 国立研究開発法人産業技術総合研究所, 8) 国立研究開発法人産業技術総合研究所, 9) 東京科学大学, 10) 東京科学大学
Abstract(J)高効率燃焼技術の導入に伴い燃焼室内に生成されるデポジットが想定外の圧縮比増加による異常燃焼やエミッションの悪化を招く問題がある.そこで,燃焼室内デポジットの生成予測モデルの構築を目的とし,実機エンジンを用いた燃焼室内デポジットの加速生成実験を実施し,燃焼室デポジットの生成過程を明らかにした.

Translation

Abstract(E)During the operation of a SI engine, combustion chamber deposits (CCD) form inside the engine combustion chamber. The formation of CCD causes unstable combustion, resulting in adverse effects on thermal efficiency and emissions. In this study, acceleration generation experiments of CCD were conducted using a spark ignition engine, and the time profiles of CCD thickness were obtained. Timeline observations of the CCD surface and detailed observations using SEM were also conducted. As a result, the CCD thickness increased significantly at the beginning of operation and then remained stable, and the formation process and detailed structure of the CCD differed depending on the operating conditions.

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