CKD_(7F)型机车风扇惰转转速高的原因分析及改进

Fault reason analysis and countermeasures of cooling fan for CKD_(7F) diesel locomotive

分析了CKD7F型机车柴油机起机后冷却水的温度较低而冷却风扇却开始惰转的原因。针对故障原因实施了改进,使问题得到解决。

The reason of the fault that the cooling fan began idling at lower cooling water temperature when the diesel engine just started.By adopting the corresponding countermeasures,the fault was eliminated.