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东风型内燃机车目前已有一千余台,是西南、西北地区铁路运输的主力。近十多年来,这些机车的运行情况基本是良好的。但是,也出现一些问题,其中冷却能力的不足尤为突出。当机丰尚未以全功率运行时,外界气温高于30℃,冷却装置就难以满足要求。尽管有关单位从1966年开始就对冷却装置的设计和制造工艺作了某些改进,可是至今见效甚微。相反,日趋严重,危及东风型内燃机车在这些地
Dongfeng diesel locomotive currently has more than a thousand units, is the main force of rail transport in the southwest and northwest regions. In the past decade or so, the operation of these locomotives has basically been good. However, some problems have also appeared, of which the lack of cooling capacity is particularly prominent. When the machine Fung has not yet run at full power, the outside temperature is higher than 30 ℃, the cooling device will be difficult to meet the requirements. Although some improvements have been made to the design and manufacturing of cooling units since 1966, the units concerned have not achieved any significant results so far. On the contrary, it is becoming increasingly serious and endangers the Dongfeng diesel locomotive in these places