舶用低速ニサイクルディーゼル機関の掃気に関する模型実験 : (第3報排気パルスと掃気)

概要

論文の詳細を見る
In the two-cycle diesel engine with constant pressure turbocharging, the deviation of the maximum pressure is observed in each cylinder. It was supposed that one of the reasons is the interference of exhaust pulse to the scavenging.<BR>In this study the dynamic scavenging tests are conducted by using a single cylinder model in order to investigate the influence of exhaust pulse on the scavenging. By comparing the experimental results with theoretical calculation, the effect of exhaust pulse to the scavenging is discussed. The results obtained are as follows: 1) When the exhaust pulse is given during the scavenging period, the scavenging flow is obstructed and the concentration of fresh gas in the cylinder decreases. 2) The influence of exhaust pulse to the scavenging seems to be most serious when the pulse is given at the middle of the scavenging period. 3) By means of the experiment and calculation one of the charac-teristics of the scavenging becomes clear in regard to the interference of exhaust pulse.
社団法人日本マリンエンジニアリング学会の論文