直接噴射式ディーゼル機関における排気再循環の効果 : 第3報, ディーゼルノックへの影響機構

フォーマット:

論文

責任表示:

志賀, 聖一 ; 江原, 秀治 ; 柄沢, 隆夫 ; 倉林, 俊雄

言語:

日本語

出版情報:

日本機械学会, 1985-11-25

著者名:

• 志賀, 聖一
• 江原, 秀治
• 柄沢, 隆夫
• 倉林, 俊雄

掲載情報:

日本機械学會論文集. B編

ISSN:

0387-5016      

巻:

51

通号:

471

開始ページ:

3823

終了ページ:

3827

バージョン:

VoR

概要:

application/pdf<br />Journal Article<br />In previous paper, it was suggested the effect of exhaust gas recirculation (EGR) on the diesel knock is relevant to the reaction rate of spontaneous ignition which occurs at the initial stage of diesel combustion. In a present study, this suggestion is verified by measuring the ignition lag and separating it into physical and chemical lags by applying the statistical technique presented by S. Kumagai. … Under the operating condition used in this study, the physical lag is rather longer than the chemical lag and hardly changes with an increase in EGR ratio. On the other hand, the chemical lag is considerably affected by EGR. Though the dependent behaviour of the chemical lag on EGR is not simple, it is clearly shown that the tendency of chemical lag versus EGR ratio is quite the reverse of that of the diesel knock intensity. This means that the diesel knock intensity with EGR is dominated by the reaction rate of spontaneous ignition. 続きを見る