小松HM400-2铰卡发动机燃油过滤的改造

Reform of Komatsu HM400-2 Articulated Dump Truck Engine Fuel Filter

小松HM400-2铰接式卡车发动机燃油系统采用的是高压共轨技术,但因燃油适应能力差,导致高压共轨油槽故障频发。此故障成为制约该设备利用率关键因素之一。通过对高压共轨技术介绍,结合该铰接式卡车发动机燃油系统结构特点进行了分析,对共轨油槽故障现象进行了描述和分析。借鉴同型号发动机燃油过滤结构成功经验基础上,提出了燃油系统中过滤器的改造方案,并组织实施,取得了良好效果。

Engine fuel system of articulated truck of Komatsu HM400-2 model is using the high pressure common rail technology. Its adaptability to poor quality fuel causes frequent faults to high pressure common rail tank. This kind of fault restricts the equipment utilization rate becomes one of the key factors to decrease the equipment failure rate. In this article, the high pressure common rail technology is introduced, the common rail tank failure phenomena is described and analyzed, combining the characteristics of the articulated truck engine fuel system structure. Based on the same model engine fuel filter structure of successful experience, the retrofit scheme of fuel oil filter system is put forward, and implemented, which has obtained the good effect.