产品介绍

中国航发商发首先启动了针对C919飞机发动机的研发，目前已完成验证机全部设计工作，正在开展零部件试制和试验工作。
该发动机是一型双轴大涵道比直驱涡扇发动机，由1级风扇、3级增压级、10级高压压气机、单环形燃烧室、2级高压涡轮及7级低压涡轮组成，采用全三维气动设计、贫油预混燃烧、主动间隙控制等先进技术，以及宽弦空心风扇叶片、整体叶盘、新一代单晶、粉末冶金等先进材料工艺，具有高效率、低燃油消耗，低排放、低噪音，高可靠性、长使用寿命，低维护成本、良好的维修性等产品特性。

Product Introduction:

AECC CAE launched the R&D of engine for the C919 in the first place. At this stage, all the design works of demo engine has been completed, and AECC CAE started the trial-manufacture and tests for the components. 
The engine is a high bypass ratio turbofan engine directly driven by two shafts. It consists of one stage fan, three-stage booster, ten-stage HPC, full annular combustor, two-stage HPT and seven-stage LPT. The technologies such as 3D aerodynamic design, lean pre-mix combustion, active clearance control, etc. and the new material technologies applied on wide-chord hollow fan blade, blisk, new generation single crystal blade, powder metallurgy parts, all together produce a high efficiency engine of lower fuel consumption, lower emission, less noise, and at same time higher reliability, longer life and better maintainability.