A shroud for an aircraft is configured to at least partially surround a noise source including a propeller. The shroud includes an outer layer and two or more sound absorbing materials located insidethe shroud. The outer layer is configured to transmit noise from the noise source into the inside of the shroud and/or includes a recess located and sized to partially surround at least a part of a tip of at least one blade.
一种用于飞机的护罩,其构造成至少部分地围绕包括螺旋桨的噪声源。护罩包括外层和位于护罩内部中的两种或更多种吸声材料。外层构造成将来自噪声源的噪声传播到护罩内部中,和/或包括凹部,该凹部的位置和尺寸确定成部分地围绕至少一个叶片的至少一部分尖端。
SHROUD
护罩
10.04.2020
Patent
Elektronische Ressource
Chinesisch
IPC: | B64C AEROPLANES , Flugzeuge |