摘要
本文以国产 1115型单缸直喷柴油机为例 ,介绍一种应用喷油过程分析软件改进喷油泵凸轮设计的方法 ,通过增大喷油泵凸轮升程、采用切线函数凸轮并优化预行程的方式 ,在不改变喷油泵安装尺寸的前提下 ,可提高喷油压力和喷油速率 ,改善柴油机低速工作稳定性 。
A method based on the application of an injection process analysis software is introduced in this article,which optimize injection process through changing the design of fuel-injection pump cam.A model of 1115 single cylinder direct injection diesel engine is used as an example.With the help of pre-journey optimization,increasing cam lift and using tangent-function can make the matching of the injection system with the diesel more reasonable.Without changing fuel pump installing size,it can enhance injection rate and injection pressure and improve the diesel operating stability in low speed condition.
关键词
柴油机
喷油泵
凸轮
喷油过程
Diesel engine,Fuel-injection pump,Cam,Injection process
