康明斯NTA855型发动机故障实例

Cummins NTA855 Type Engine Instance

本文主要以上海彭浦巨力工程机械有限公司生产的Y320型推土机为实体依据,从推土机发现故障表象到分析故障原因,再到试探性的拆解发动机从而找到故障根源,并加以处理、改良等一系列的措施办法,来讲解这一实例的过程。此例主要涉及到NTA855型发动机的工作原理及结构性能,并着重讲述发动机活塞"熔顶"、水箱"返水"的一些故障现象和分析原因,并通过实际的处理措施加以论述。

This paper mainly regard Y320 bulldozer in Shanghai Pengpu construction machinery giant Limited production as solid basis.From bulldozer is found fault to analyze the reason of malfunction,to the tentative disassembling the engine so as to find out the root cause of failure.Try to handle,improvement and a series of measures to explain the instance of process.This paper mainly related the working principle and properties of structure to NTA855 type engine.Focus on the top of piston was melt and the tank was made water return in engine,that some fault phenomenon and reason analysis.Through the actual treatment measures to discuss.