In-Cylinder Charge Motion Concept for a High Thermal Efficiency Engine dedicated for Power Generation of Electrified Vehicles
電動車両用高効率発電専用エンジンのための筒内ガス流動コンセプト
- Delivery
- Available on this site
- Format
- Price
- Non-members (tax incl.)：￥1,100 Members (tax incl.)：￥880
- Publication code
- 20214404
- Paper/Info type
- Journal of Society of Automotive Engineers of Japan
Vol.75 No.6
- Pages
- 52-58(Total 7 p)
- Date of publication
- Jun 2021
- Publisher
- JSAE
- Language
- Japanese
Detailed Information
| Category(J) | ハイブリッド技術：電動化を支え進化する内燃機関 Translation |
|---|---|
| Category(E) | Hybrid Vehicle Technologies: Evolution of IC Engines Through Electrifcation |
| Author(J) | 1) 鈴木 琢磨, 2) 結城 光雄, 3) 葛西 理晴, 4) 吉村 太, 5) 白石 泰介 |
| Author(E) | 1) Takuma Suzuki, 2) Mitsuo Yuki, 3) Masaharu Kassai, 4) Futoshi Yoshimura, 5) Taisuke Shiraishi |
| Affiliation(J) | 1) 日産自動車, 2) 日産オートモーティブテクノロジー, 3) 日産自動車, 4) 日産自動車, 5) 日産自動車 |
| Abstract(J) | 高希釈燃焼実現に向けた課題であるサイクルばらつきの低減技術として，エンジン筒内における点火プラグ部流速のサイクル安定供給のコンセプトを策定した．バルブシートレス技術と電動車両の動作点を考慮した燃焼室形状をキー技術とした本コンセプトにより，流動サイクルばらつきを低減し高希釈燃焼限界の拡大につなげた． Translation |
| Abstract(E) | Highly diluted combustion is expected to contribute the improvement of thermal efficiency for generator specific high efficiency engines. To achieve highly diluted combustion, it is necessary to reduce cycle-to-cycle variations of IMEP. In this study, in-cylinder charge motion concept that leads to the high tumble and stable flow around spark plug was established based on in-cylinder visualization and hot-wire anemometer measurements. This gas flow design consists of valve seat-less technology and a low aspect ratio combustion chamber with enlargement of valve angle geometry. As a result, high thermal efficiency was realized with stable combustion under highly diluted combustion conditions. |
