某型发动机增设滑油低压开关可行性研究

某型民用航空发动机服役后,在全球范围内,装备该机型的民用客机在运行过程中多次出现由于滑油压力传感器故障导致的滑油低压误告警,使得飞行员主动关停发动机,从而导致空停。通过安全性分析的方式,对该型发动机的滑油系统中增设滑油低压开关来关闭误告警问题的可行性进行评估,同时对增设低压开关的影响进行权衡,确认方法可行,增设低压开关有利于保证该型民用航空发动机航线运行中的安全性和派遣率。

Feasibility Analysis of Add Oil Low Pressure Switch on Serviced Civil Engine

After a type civil engine entering into service, the civil aircraft equipped with this type engine occurs oil low pressure alert caused by the failure of oil pressure transducer during operation, and this alert leads pilot to shutoff engine actively and leads to engine shutdown. A safety analysis method is used to evaluate the feasibility of adding an oil low pressure switch in engine oil system, at the same time, the impact of adding switch is traded study. As a result, the method of adding the oil low pressure switch is available and it is advantage to ensure the safety and dispatch for this aircraft service.