2016 年 11 巻 2 号 p. JTST0026
In this study, an injection rate meter that can be used to measure marine engine nozzle injection rates is developed and the results obtained using this equipment are presented. This main focus is on differences resulting from changing the rack stroke using marine diesel oil. In addition, marine engine injection system design variables are shown to be related to by the shape of the cam profile to nozzle geometry and to the control parameters influencing the injection quantity (fuel rack position) and timing. Changing the load and fuel rack position, we calculated the injection rate by using the Zeuch method, simultaneously measuring the amount of fuel injected from the marine nozzle for 10 minutes. The difference between calculated and measured quantities is less than 1%. Comparison demonstrated the reliability of the developed injection meter. In addition, injection rate characteristics of a marine nozzle under various conditions were investigated. This study shows that it is possible to measure the injection rate and quantity of the complete marine engine using the Zeuch method
