Aircraft auxiliary power driving system

The invention discloses an aircraft auxiliary power driving system. A hydraulic pump/motor and an energy accumulator are adopted to assist an engine to drive a propeller. By recovering kinetic energyin the aircraft braking process, the energy utilization rate is increased. In the flying process of an aircraft, when the engine failure occurs, the engine is assisted to achieve quick secondary starting. According to the aircraft auxiliary power driving system, the safety of the aircraft can be improved, the starting time is shortened, and the installed power of the engine is decreased. 本发明公开了种飞机辅助动力驱动系统，采用液压泵/马达和蓄能器辅助发动机驱动螺旋桨，通过回收飞机制动过程的动能，提高能量利用率，并在飞机飞行过程中发动机失效时，辅助发动机实现快速二次启动。本发明公开的飞机辅助动力驱动系统能够提高飞机的安全性能，缩短启动时间，降低发动机装机功率。