Lowest Engine-Out Emissions as the Key to the Future of the Heavy-Duty Diesel Engine-New Development Results
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- 形態
- 価格
- 一般価格(税込)：￥1,100 会員価格(税込)：￥880
- 文献番号
- 20055460
- 文献・情報種別
- 学術講演会予稿集（春）
No.22-05
- 掲載ページ
- 11-14(Total 4 p)
- 発行年月
- 2005年 5月
- 出版社
- (公社)自動車技術会
- 言語
- 英語
書誌事項
| 著者（英） | 1) Franz X.Moser, 2) Theodor Sams, 3) Rolf Dreisbach |
|---|---|
| 勤務先（英） | 1) AVL List, 2) AVL List, 3) AVL List |
| 抄録（英） | Latest development results on heavy duty diesel engines show that - applying specific exhaust gas aftertreatment - it is possible to achieve the required U.S. emission limits for 2010. However, based on achieved NOx and particulates engine-out emissions of approximately 1,0 g/kWh NOx and 0,06 g/kWh PM, exhaust gas aftertreatment systems with DeNOx and filter efficiencies of at least 90 % are mandatory. To achieve the mentioned engine-out emissions it is necessary to realize engine concepts with a peak firing pressure capability of at least 200 bar, cooled exhaust gas recirculation with EGR rates up to 25 % at full load, injection systems with a pressure potential of 2500 bar and two-stage turbocharging. Turbocharger efficiencies of more than 50% are required to keep the unavoidable increase of fuel consumption within acceptable limits. For Europe the same applies in case Europe would introduce the U.S. limits. In case the limits for NOx would be set to for instance 1,0 instead of 0,27 g/kWh, the then possible higher engine-out emissions will allow reduced requirements for the engine concept along with a significantly better fuel consumption. 翻訳 |
