北京型内燃机车的两个风扇偶合器(即高温偶合器和低温偶合器)的油路中,各串联一个散热器,以防止当偶合器工作时偶合器工作油温度过高。但是,在机车运用中,该散热器漏油的问题时有发生。不但增加乘务人员的保养工作,而且增加了检修的工作量。为此我们进行了取消该散热器的试验。进行此项试验的依据是:当偶合器工作时风扇高速旋转,侧百叶窗及顶 Beijing diesel locomotive two fan coupling (ie, high temperature coupling and low temperature coupling) of the oil path, each series with a radiator to prevent the coupling when the working fluid when the coupling oil temperature is too high. However, in the locomotive operation, the radiator leakage problems have occurred. Not only increase maintenance crew maintenance work, but also increase the maintenance workload. To this end, we conducted a test to cancel the radiator. The basis for conducting this test is that the fan rotates at high speed when the coupling is in operation, the side shutters and the roof