PT泵怠速不稳故障机理分析与诊断

Analysis and Diagnosis of Mechanism of Idle Instability Caused by PT Pump Fault

结合PT泵怠速原理,阐述了PT泵怠速工作过程和怠速不稳故障现象的就车识别与PT泵试验台识别,系统研究了PT泵故障引起的发动机怠速不稳的内在原因以及深层次的故障机理,给出了诊断排除方法,同时结合实践提出预防措施。

Links PT pump idle theory, describes PT pump idle working process and the identification of the phenomenon of idle speed instability during the vehicle running or on PT pump test bench, with the systematic study of the inner cause and deep fault mechanism of engine idle instability which caused by PT pump fault, and gives the methods of diagnosis and fault elimination, at last prevention measures were put forward with practice involved.