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齿轮驱动风扇(GTF)发动机因为具有低排放、低噪声、低油耗和低维护费用等优点被市场认可,成为下一代民用发动机的主要发展方向之一,请您介绍一下GTF的研究现状。陈聪慧:降低耗油率和减少污染排放是下一代民用航空发动机的主攻发展方向和“卖点”。降低耗油率的主要方法有:提高整机热效率(增加压气机的出口压力、增加涡轮前温度)、提高发动机推进效率(降低排气速度、
Gear driven fan (GTF) engines are recognized by the market for their advantages of low emissions, low noise, low fuel consumption and low maintenance costs, making them one of the major development directions for the next generation of civilian engines. Please tell us about the status quo of GTF research. Chen Conghui: Reduce fuel consumption and reduce pollution emissions is the next generation of civil aviation engines, the main direction of development and “selling point ”. The main methods to reduce the fuel consumption rate are as follows: increasing the thermal efficiency of the whole machine (increasing the outlet pressure of the compressor and increasing the temperature before the turbine), improving the propulsion efficiency of the engine (reducing the exhaust speed,