六ストロークディーゼル機関の性能

フォーマット:

論文

責任表示:

岡本, 雄一郎 ; 荻原, 五郎 ; 天谷, 賢児 ; 新井, 雅隆

言語:

日本語

出版情報:

日本機械学会, 1998-10-25

著者名:

• 岡本, 雄一郎
• 荻原, 五郎
• 天谷, 賢児
• 新井, 雅隆

掲載情報:

日本機械学會論文集. B編

ISSN:

0387-5016      

巻:

64

通号:

626

開始ページ:

3503

終了ページ:

3509

バージョン:

VoR

概要:

application/pdf<br />Journal Article<br />A Six-stroke diesel engine was developed and its performance was evaluated. This engine had second compression and second combustion strokes which were added on the four stroke diesel engine. To control the fuel injection ratio and injection timings for first and second combustion strokes independently, two fuel pumps were attached to the engine. Effect of the fuel allocation ratio between first and second … combustion strokes on the engine performance was investigated. Engine performance of the six stroke diesel engine was compared with that of the four stroke diesel engine which was the base engine of the six stroke engine. As a result, NO concentration in the exhaust gas decreased with a delaying of injection timing at second combustion stroke, but the injection timing at first combustion stroke didn't influence NO concentration. NO concentration decreased with an increase of allocation fuel ratio into the second combustion stroke. A trade-off relation between NO and soot concentration was observed against the change of allocation ratio. From the comparison between six and four stroke engine, it was confirmed that the NO concentration of the six stroke engine becomes lower than that of the four stroke engine. 続きを見る