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带有中冷的涡轮增压柴油机能增加进气歧管内的气体密度。用空气作为冷却介质可以获得最低的增压空气温度。本文介绍一种特殊的空气冷却的中冷器系统,它是由一台高效率的中冷器和一台冷却风扇组成。冷却风扇由增压器的压气机放出的气体通过安装在风扇元周边上的一圈脉动式叶片来驱动。空冷中冷的优越性可通过对两台同样的发动机的性能比较加以说明,其中一台不带中冷,一台带有空冷中冷系统。实际数据表明,采用空冷中冷后,发动机功率增加了27％,废气污染减少了40％以上,气缸内最高压力略有增加,燃油经济性得到改善。
Turbocharged diesel engines with intercooler increase the gas density in the intake manifold. With air as the cooling medium, the lowest charge air temperature is achieved. This article describes a special air-cooled intercooler system that consists of an efficient intercooler and a cooling fan. Cooling Fan The gas released by the turbocharger’s compressor is driven by a ring of pulsating blades mounted on the periphery of the fan element. The advantages of air-cooled intercooling can be explained by comparing the performance of two identical engines, one with no intercooler and one with air-cooled intercooler. The actual data show that the use of air-cooled in the cold, the engine power increased 27%, exhaust gas pollution reduced by 40% or more, the maximum pressure in the cylinder slightly increased, fuel economy improved.