一、绪言在“机车模拟燃烧试验炉的实验”中已经报导,蒸发能力最好的燃气状态是在不产生CO 而所需空气量最少的时候,这时过剩空气约为20%,这种关系并不随燃烧率的变化而改变。但结合机车实际运用情况,随着燃烧率的变化,由于供给空气量不能与之相适应,因而过剩室气在低燃烧率时过多,而高燃烧率时就过少,因而在任阿时候也未能显示出适当的蒸发成绩。为了解决这个问题,日本运转局和研 I. INTRODUCTION It has been reported in “Experiments on locomotive simulative combustion test furnaces” that the best vaporization condition is when the amount of air required is the minimum without generating CO, at which time the excess air is about 20% Does not change with the combustion rate changes. However, with the actual use of locomotives, with the combustion rate changes, due to the supply of air volume can not be adapted, so excess room gas at low combustion rate too much, and high combustion rate is too low, so when Ren also Failed to show proper evaporation score. In order to solve this problem, Japan Operation Bureau and research