矿用电喷发动机功率不足原因分析及排除方法

Cause Analysis and Elimination Method for Under-power of Electronic Fuel Injection Engine used in Mine

所谓发动机功率不足,就是发动机输出的扭矩不足以克服外界因素对发动机的阻力。引起发动机功率不足的具体原因很多,主要分为以下几类:进气系统故障、燃油供给系统、燃烧室故障、电控系统故障等。本文通过几个实例对发动机功率不足的原因进行分析,总结出了特征故障,并利用特征故障,快速准确的查找出故障点。

This paper analyzes the causes to under-power of engine by several practical examples, summarizes and uses the char-acteristic troubles to find out the barrier point quickly and exactly. The so called under-power means torque from engine output unable to overcome the resistance force of external factors to it. There are many reasons caused engine under-power, mainly as follows： the intake system, fuel supply system, combustion chamber and electronic control system barriers.