本发明公开了一种飞机辅助动力装置及组合式混流涡轮,属于飞机辅助动力设备领域。飞机辅助动力装置包括组合式混流涡轮,组合式混流涡轮包括相互连接的前排转子与后排转子;前排转子与后排转子分别均布多个叶片;前排转子上的前排叶片与后排转子上的后排叶片相互配合组成串列叶栅;混流涡轮的进出口落差主要分布在前排转子上;混流涡轮的叶片弯角主要分布在后排转子上。将传统混流涡轮改进为分体组合结构,叶片采用串列叶栅,转子盘体为两个独立的等强度盘;结构上涡轮转子由两个独立的转子组合而成,两个盘体可分别进行等强度设计,提高材料利用率,减轻转子质量;两个转子可根据工作温度不同选用不同种材料,进一步降低部件质量或制造成本。
The invention discloses an airplane auxiliary power device and a combined type mixed flow turbine, and belongs to the field of airplane auxiliary power equipment. The airplane auxiliary power device comprises a combined type mixed flow turbine, and the combined type mixed flow turbine comprises a front-row rotor and a rear-row rotor which are connected with each other; a plurality of blades are uniformly distributed on the front-row rotor and the rear-row rotor respectively; the front-row blades on the front-row rotor and the rear-row blades on the rear-row rotor are matched with each other to form a serial blade grid; the inlet and outlet fall of the turbine rotor is mainly distributed on the front-row rotor; blade bending angles of the turbine rotor are mainly distributed on the rear row rotor. A traditional mixed-flow turbine is improved to be of a split combined structure, serial blade grids are adopted for blades, and rotor disc bodies are two independent equal-strength discs; structurally, the turbine rotor is formed by combining the two independent rotors, the two disc bodies can be subjected to equal-strength design, the material utilization rate is increased, and the mass of the rotors is reduced; and the two rotors can be made of different materials according to different working temperatures, so that the component quality or the manufacturing cost is further reduced.
飞机辅助动力装置及组合式混流涡轮
2023-07-21
Patent
Elektronische Ressource
Chinesisch