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  • Summary & Details

Study on the pre-chamber technology application to gasoline engine combustion

ガソリンエンジン燃焼へのプレチャンバー技術適用に関する検討

Detailed Information

Author(J)1) 大野 諒平, 2) 原田 雄司, 3) 長津 和弘 , 4) 鈴木 裕和, 5) 内田 健司 , 6) 飯田 晋也, 7) 藤川 竜也
Author(E)1) Ryohei Ono, 2) Yuji harada, 3) Kazuhiro Nagatsu, 4) Hirotaka Suzuki, 5) Kenji Uchida, 6) Shinya Iida, 7) Tatsuya Fujikawa
Affiliation(J)1) マツダ株式会社, 2) マツダ株式会社, 3) マツダ株式会社, 4) マツダ株式会社, 5) マツダ株式会社, 6) マツダ株式会社, 7) マツダ株式会社
Affiliation(E)1) Mazda Motor Corporation, 2) Mazda Motor Corporation, 3) Mazda Motor Corporation, 4) Mazda Motor Corporation, 5) Mazda Motor Corporation, 6) Mazda Motor Corporation, 7) Mazda Motor Corporation
Abstract(J)ガソリンエンジンの高出力化,高効率化技術の一つとして火花点火プラグを副室に設置したプレチャンバー技術が近年注目を浴びている.一方,軽負荷領域において燃焼が不安定となる課題や,チャンバーの仕様によりその効果が得られる負荷範囲が異なるという研究例が報告されている.今回,CFDを用いて各負荷領域での燃焼改善要件を抽出し,それらを満足する単一のプレチャンバー仕様について検討したので報告する.

Translation

Abstract(E)A pre-chamber having a sub-chamber, in which a spark ignition plug is located, has recently attracted attention as one of the technologies improving power output and efficiency of gasoline engines. However, it has been reported that a pre- chamber causes combustion instabilities in a low load, and that load ranges for effective use of a pre-chamber varies depending on its specification. In this study, requirements for combustion improvement in each load range were extracted using CFD and experimental. Finally, the single pre-chamber specifications that satisfy these requirements was investigated.

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