近年来各国发动机制造业发展的特点是发动机广泛地采用增压,特别是创制了高增压的复合式涡轮活塞发动机。空气在压气机内预先压缩,导致其温度升高。这时,增压空气冷却可以充分地提高发动机的功率和经济性,改善发动机零件和废气涡轮工作的温度条件。在高增压压力的条件下,用增压空气冷却来提高发 In recent years, the development of engine manufacturing industry in various countries is characterized by extensive pressurization of engines, and in particular, the creation of a high turbo compound turbo-piston engine. The air is pre-compressed in the compressor, causing it to rise in temperature. At this time, charge air cooling can fully improve the power and economy of the engine, and improve the temperature conditions of engine components and exhaust gas turbines. Under conditions of high supercharging pressure, charge air is used to cool the hair