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1问题的提出运输部使用的资阳GK1C型机车240柴油机在工作运行时,柴油机突然停机,电脑显示机油压力低停机。经乘务员检查,确定各部件正常的情况下,重新起机运行。在机车运行一段时间后,又发生柴油机因机油压力低停机故障。通过往复几次观察发现,柴油机起机运行后水温在65℃以下时,柴油机运行良好;当水温在65℃以上时,柴油机主油道的油压正常,而到增压器的机油压力降至0.08 MPa以下,使停机油压继电器动作,造成柴油
1 PROBLEM ISSUES The Ziyang GK1C locomotive used by the Ministry of Transport 240 diesel engine suddenly stops when it is in operation. The computer shows that the oil pressure is low and stops. The flight attendant checked to determine the normal circumstances of the various parts, restart operation. After the locomotive running for a period of time, another diesel engine downtime due to low oil pressure failure. Through several times of reciprocating observation, the diesel engine runs well when the water temperature is below 65 ℃ after starting the diesel engine. When the water temperature is above 65 ℃, the oil pressure of the main oil passage of the diesel engine is normal, and the oil pressure to the supercharger drops to 0.08 MPa or less, the shutdown hydraulic relay action, resulting in diesel