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CFM56-3系列发动机是由美国通用电气公司(GE)和法国国营航空发动机研制公司(SNECMA)组成的国际公司(CFMI)研制生产的为波音B737-300/400/500型航空器翼吊发动机;其N2转速管理系统为飞机提供精确的燃油控制功能以防止发动机超速及失速情况的发生。N2转速管理系统主要通过接受发动机的核心转子转速(N2)和动力角(PLA)来控制燃油流量使发动机实际转速与目标转速相符。
The CFM56-3 series engine is a Boeing B737-300 / 400/500 aircraft wing crane engine developed and manufactured by the International Corporation (CFMI) consisting of General Electric Company (GE) and French National Aerospace Engine Development Corporation (SNECMA); its N2 speed management system for the aircraft to provide accurate fuel control to prevent the engine speeding and stalling situation. N2 speed management system mainly by accepting the engine core rotor speed (N2) and power angle (PLA) to control the fuel flow so that the actual engine speed and target speed.