本文介绍美国GE公司机车的干式冷却系统。该系统在柴油机通常运行情况下是干的,只有在柴油机温度高到真正需要冷却时才向系统注水。干式冷却系统对散热器耐热冲击性有特殊要求,Brocksopp工程公司已研制出能满足干式冷却要求的机械连接式散热器,文中简要介绍了这种散热器的制造工艺和使用情况。 This article describes the United States GE company locomotive dry cooling system. The system is dry under normal operation of the diesel engine and is only injected into the system when the temperature of the diesel engine is so high that it really needs cooling. Dry cooling systems have special requirements for the thermal shock resistance of heat sinks. Brocksopp Engineering has developed a mechanical heat sink that meets the requirements of dry cooling. The manufacturing process and usage of such heat sinks are briefly described in this paper.