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本文阐述的应用喷油泵凸轮特性曲线进行凸轮计算的新方法是根据作者在奥地利哈莱因弗里德曼和麦耶尔公司工作经验得出的,并在格拉兹工业大学所写的学位论文中作了论述。文中对最大许用泵腔压力特别重视,强调不允许实际工作压力超越这一极限。因此,在供油段和减速段之间采用了使泵腔压力均匀下降的过渡段,把供油工作段移到速度较高的范围,从而减少供油持续时间,把燃烧组织得更好。文章还估价了用余弦曲线(其加速度与弹簧力相适应)代替顶圆时,极限转速和供油速度的改善程度。最后说明了如何从已算得的升程和速度曲线求得加工凸轮所需的数据。
The new method of calculating cam calculations using injection pump cam profiles described in this paper is based on the author’s experience with the work of Hallein Friedman and Meyer in Austria and in a dissertation written by Graz University of Technology Made a discussion. The text of the maximum allowable pump pressure special attention, stress does not allow the actual work pressure beyond this limit. Therefore, a transitional section is used between the oil supply section and the deceleration section to uniformly lower the pressure of the pump chamber, and the oil supply operation section is moved to a higher speed range, thereby reducing the duration of the oil supply and organizing the combustion better. The article also assesses the improvement of the limit speed and fueling speed when the cosine curve (whose acceleration corresponds to the spring force) is substituted for the top circle. Finally, we show how to find the data required to machine the cam from the calculated lift and speed curves.