Smoke-Reduction Effect of After Injection in Combination with Pilot Injection
| Autor: | Horibe, Naoto, Tamura, Issei, Hamada, Takayuki, Liu, Long, Ishiyama, Takuji |
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| Jazyk: | japonština |
| Rok vydání: | 2012 |
| Předmět: | |
| Zdroj: | 自動車技術会論文集. 43(5):1039-1044 |
| ISSN: | 0287-8321 |
| Popis: | This study aims at obtaining the after-injection strategy to reduce smoke emissions in a diesel engine, where after injection is employed in combination with pilot injection. The experiments were performed using a single-cylinder diesel engine under various conditions of pilot and after injection at a fixed load. The results show that small after-injection quantity with short interval offers reduced smoke emission. Larger pilot-injection quantity provides larger smoke reduction from the level in the case without after injection. The smoke-reduction effect is scarcely affected by pilot-injection timing in the case of a larger pilot-injection quantity. These tendencies are explained with attention to the interaction between main-spray flame and after-injection spray. 単気筒ディーゼル機関を用いて，パイロット噴射量や時期を変えながらアフター噴射条件を変化させて実験を行い，その結果を，アフター噴射を行わない場合と比較し，メイン噴霧火炎とアフター噴霧の干渉を考慮した考察を加えることにより，アフター噴射による黒煙低減効果が得られる条件について検討を行った． 2012年5月25日自動車技術会春季学術講演会において発表. |
| Databáze: | OpenAIRE |
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