Thermal Efficiency Improvement of a Diesel Engine by High-Heels Heat Release Rate Profile Engine Experimental Results and Analysis by Utilizing Multiple-Injector System
High-heels型熱発生率によるディーゼル機関の熱効率改善 マルチインジェクタ燃焼系を用いた実機試験結果と解析
- Delivery
- Available on this site
- Format
- Price
- Non-members (tax incl.)：￥1,100 Members (tax incl.)：￥880
- Publication code
- 20265144
- Paper/Info type
- Proceedings (Spring)
No.34-26
- 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) 町井 輝男, 2) 内田 登 |
|---|---|
| Author(E) | 1) Teruo Machii, 2) Noboru Uchida |
| Affiliation(J) | 1) 新エィシーイー, 2) 新エィシーイー |
| Affiliation(E) | 1) New A.C.E Institute, 2) New A.C.E Institute |
| Abstract(J) | 冷却損失増加の可能性から更なる高等容度化は必ずしも熱効率改善に寄与しない．本研究ではむしろ等容度を低減するHigh-heels型熱発生率を提案し，これまでにマルチインジェクタ燃焼系による熱発生率プロフィール制御の可能性を主に数値計算にて検討してきた．本報では実機にて性能試験を行い，その熱効率改善要因の解析を実施した． Translation |
| Abstract(E) | Further increase in degree of constant volume combustion cannot necessarily achieve higher thermal efficiency probably caused by increased cooling loss. Therefore, High-heels heat release rate profile, which rather reduces degree of constant volume combustion, has proposed as a potential combustion concept to improve cooling loss and thermal efficiency simultaneously. To achieve the target profile, the feasibility of controlling heat release rate profile with more degrees of freedom by utilizing a multiple-injector system was numerically confirmed in the previous study. This study investigates the factors contributed to the thermal efficiency improvement by analyzing experimental results conducted by a heavy-duty single-cylinder engine. |
