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分析了我国铁路准高速内燃机车夏季运行存在的问题 ,针对该问题选择冷却风扇的设计方案 ,比较了两种不同的设计方案。本文主要是针对轮毂部分进行讨论 ,并与以前的冷却风扇进行了试验对比 ,证明了新型冷却风扇能够满足机车的冷却要求。
This paper analyzes the problems existing in the summer operation of the railway quasi-high-speed diesel locomotives in China, and chooses the design scheme of the cooling fan for this problem and compares two different design schemes. This paper is mainly for the hub part of the discussion, and compared with the previous cooling fan test proved the new cooling fan to meet the cooling requirements of the locomotive.