直接噴射式ディーゼル機関の二段噴射化による基本燃焼特性の変化

フォーマット:

論文

責任表示:

岩崎, 浩二 ; 荻原, 五郎 ; 新井, 雅隆

言語:

日本語

出版情報:

日本機械学会, 2000-06-25

著者名:

• 岩崎, 浩二
• 荻原, 五郎
• 新井, 雅隆

掲載情報:

日本機械学會論文集. B編

ISSN:

0387-5016    

巻:

66

通号:

646

開始ページ:

1593

終了ページ:

1599

バージョン:

VoR

概要:

application/pdf<br />Journal Article<br />Combustion characteristics and engine performances of a two-stage injection DI diesel engine were experimentally investigated. Two-stage injection was achieved by using two injection pumps. Injection timing and fuel allocation ratio between first and second injection were widely controlled. Engine performance of a two-stage injection diesel engine was compared with that of a single injection diesel … engine with early timing injection. The heat release rate was analyzed to understand the combustion phenomena in a two-stage injection diesel engine. As a result, NO emission of two-stage injeciton diesel engine was improved when the first injection timing is early. The various pattern of heat release rate appeared with the change of a fuel allocation ratio. It was greatly affected by the first injection spray impinged on the cylinder wall or the piston top. The trade-off tendency between NO and smoke was influenced by the fuel allocation ratio of sub-injection pump was high. 続きを見る