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挖掘机发动机进气系统由预滤器、空气滤清器、中冷器和进气管路组成,其作用是为发动机提供清洁、干燥、充足的空气。进气系统的安装、布置,直接影响发动机工作的可靠性、稳定性。本文分析1起挖掘机发动机进气胶管脱落故障,并提出改进措施。1.故障现象1台工作了200h的挖掘机出现无法启动故障。经检查发现,发动机空气滤芯与涡轮增压器连接处的进气胶管脱落,拆下进气胶管接头,发现进气管路内部有大量灰尘,其他部位均正常。由此判断,发动机无法启动的原因是进气管脱落,使大量灰尘进入
Excavator Engine intake system by the pre-filter, air filter, intercooler and intake pipe composition, its role is to provide clean, dry, adequate air. Intake system installation, layout, a direct impact on engine reliability, stability. This article analyzes 1 excavator engine inlet hose off failure, and propose improvements. 1. Symptom A working 200h excavator fails to start. The inspection found that the engine air filter and turbocharger at the junction of the hose off, remove the inlet hose connector and found that there is a lot of dust inside the intake pipe, the other parts are normal. Judged from this, the engine can not start because the intake pipe off, so that a large amount of dust into