航空发动机的种类与结构

发动机主要用于速度更高的飞机;涡轮喷气发动机主要用于超声速飞机。????冲压发动机?? 冲压发动机特点是无压气机和燃气涡轮,进入燃烧室的空气利用高速飞行时的冲压作用增压。它构造简单、推力大,特别适用于高速高空飞行。由于不能自行起动和低速下性能欠佳,限制了应用范围,仅用在导弹和空中发射的靶弹上。TheHeatEngineConvertschemicalenergy(fuel)intoheatenergy.Heatenergyisthenconvertedintomechanicalenergy.Theheatenergyisreleasedatapointinthecyclewherethepressureishigh,relativetoatmospheric.TheHeatEngineDividedintogroupsortypesdependingupon:Theworkingfluidused.pression.ThePropulsiveworkingfluid.pression:Turbine-pressorEngineworkingfluid:Fuel/airmixturePropulsiveworkingfluid:Fuel/pression:Turbine-pressorEngineworkingfluid:Fuel/airmixturePropulsiveworkingfluid:pression:pressionEngineworkingfluid:Fuel/airmixturePropulsiveworkingfluid:Fuel/airmixtureTypesOfHeatEnginesPulse-bustionEngineworkingFluid:Fuel/airmixturePropulsiveworkingFluid:Fuel/airmixture