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发明授权
CN103702903B 减小环境影响的飞行器 有权

减小环境影响的飞行器
摘要：
一种减小环境影响的飞行器，该包括两个发动机(10)以及各涡轮螺旋桨发动机的噪音屏蔽装置，该发动机安装在飞行器的背部并产生向后的噪声。该噪音屏蔽装置包括屏蔽元件(32)，例如一个襟翼(33)，其可以在收缩位置与朝向机翼后部展开的位置之间移动。在该展开位置上，该襟翼(33)屏蔽了涡轮螺旋桨发动机朝向前部的噪音区域(18)，减少了地面对噪音的感知。
摘要（英）：

An aircraft with reduced environmental impact includes two turboprop engines mounted on the back of the aircraft at the rear thereof, and one acoustic masking device per turboprop engine. The acoustic masking device includes a masking element, such as a flap, which can move between a position in which it is retracted into the wing, and a position in which it is extended toward the rear of the wing. In the extended position, the flap intercepts the noise area generated toward the front by the turboprop engine, so as to reduce the perception of noise on the ground.

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