Diesel Combustion Improvement Using High Boost, Wide Range and High Rate EGR in a Single Cylinder Engine (Third Report)-Effect of Multi-Injection on Exhaust Emissions and BSFC Effect of Multi-Injection on Exhaust Emissions and BSFC-
単気筒エンジンにおける高過給・広域多量EGR のディーゼル燃焼(第３報) 燃料マルチ噴射による排出ガスと燃費率の改善効果
- Delivery
- Available on this site
- Format
- Price
- Non-members (tax incl.)：￥1,100 Members (tax incl.)：￥880
- Publication code
- 20124571
- Paper/Info type
- JSAE Transaction
Vol.43 No.4
- Pages
- 855-861(Total 7 p)
- Date of publication
- Jul 2012
- Publisher
- JSAE
- Language
- Japanese
Detailed Information
| Category(J) | 研究論文 Translation |
|---|---|
| Category(E) | Research Paper |
| Author(J) | 1) 長田 英朗, 2) 青柳 友三, 3) 島田 一昭 |
| Author(E) | 1) Hideaki Osada, 2) Yuzo Aoyagi, 3) Kazuaki Shimada |
| Affiliation(J) | 1) 新エィシーイー, 2) 新エィシーイー, 3) 新エィシーイー |
| Abstract(J) | ディーゼルエンジンの排出ガスは，高過給と広域多量EGRにより大幅に低減できる．燃料マルチ噴射によりその効果を高め，更に燃費率の改善を試みた．中負荷領域でプレ噴射とアフター噴射を行い，熱発生率を分割してピーク値を抑え，高圧燃料噴射により燃焼期間の遅延を防ぐ．また，燃焼撮影により混合気形成改善を確認した． Translation |
| Abstract(E) | The authors utilized pre and after injection to split the heat release for decreasing peak cylinder gas temperature as a strategy. The experiments were conducted in a single cylinder diesel engine for heavy-duty use and operated at BMEP = 0.8 MPa of middle load. The injection timings and quantity of each injection events were changed as parameters. As a result, a multi-injection pattern simultaneously reduced exhaust emissions and the fuel consumption and improved further by the nozzle optimization. The flame movements of the multi-injection in cylinder were observed by means of a high-speed camera and a bore scope. |
