本文简述了民用航空发动机的发展历程,低成本、高寿命涡轮是航空发动机的核心组件。指出提升涡轮进口温度是提高涡轮性能的有效措施,而采用气体冷却技术可以降低涡轮损耗,并进一步分析了气体冷却技术的种类和作用,为我国民用航空发动机气冷涡轮的研究和发展提供参考。 This article outlines the history of civil aviation engines. Low-cost, high-life turbines are the core components of aero-engines. It is pointed out that increasing the inlet temperature of the turbine is an effective measure to improve the performance of the turbine. Gas cooling technology can reduce the turbine loss and further analyze the types and functions of the gas cooling technology, so as to provide reference for the research and development of the air-cooled turbine for civil aeroengine.