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内燃机车某些经济-技术指标(效率、轮周功率、制造成本等)在相当大的程度上取决于冷却装置的参数。对于给定条件下的柴油机中带出的热量来说,具有最小冷却面积F和最小风扇驱动功率N_B的冷却装置,能提高机车的牵引效率。内燃机车冷却装置所要求的热状态是用改变通过散热器的空气流量(G_B)的方法来保持在已确定的水准上。众所周知,风扇所需要的功率是用下列公
Some economic-technical specifications of diesel locomotives (efficiency, cycle power, manufacturing costs, etc.) depend to a large extent on the parameters of the cooling unit. For a given condition of the diesel engine out of the heat, the minimum cooling area F and the minimum fan drive power N_B cooling device, can improve locomotive traction efficiency. The thermal state required for a diesel locomotive cooling device is maintained at a determined level by varying the air flow through the radiator (G_B). As we all know, the power required by the fan is the following male