Exhaust nozzle

The application relates to an exhaust nozzle. Conventional commercial engine exhaust systems are defined with axi-symmetric surfaces (e.g., conical or nearly conical surfaces), which create an annularexhaust for the fan (bypass) nozzle of roughly constant duct-height around the circumference. In one example configuration, the fan sleeve has been sheared upward (towards the wing or pylon) causinga larger area and duct height near the pylon relative to the portion away from the pylon. For a given thrust generated by the turbofan engine housed in the nacelle, the shear toward the pylon mount realigns the thrust in the direction of flight which may, in some examples, reduce noise experienced downstream of the turbofan engine and decreases fuel consumed in the engine core. 本申请公开了一种排气喷嘴。传统的商用引擎排气系统利用轴对称表面(例如，圆锥或接近圆锥表面)限定，其为具有大致恒定的管道高度的风扇(旁通)喷嘴产生围绕圆周的环形排气。在一个示例性构造中，风扇套筒已被向上剪切(朝向机翼或挂架)，导致相对于远离挂架的部分的靠近挂架的更大面积和管道高度。对于由容纳在引擎机舱中的涡扇引擎产生的给定推力，朝向挂架安装件的剪切使推力重新对准在飞行方向上，在一些示例中，这可以降低在涡扇引擎下游所经受的噪声并减少在引擎核心中消耗的燃料。