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Noise suppressor for turbo fan jet engines

机译:涡轮喷气发动机的噪声抑制器

摘要

A noise suppressor for installation on the discharge or aft end of a turbo fan engine. Within the suppressor are fixed annular airfoils which are positioned to reduce the relative velocity between the high temperature fast moving jet exhaust and the low temperature slow moving air surrounding the same. Within the suppressor nacelle is an exhaust jet nozzle which constrains the shape of the jet exhaust to a substantially uniform elongate shape irrespective of the power setting of the engine. Fixed ring airfoils within the suppressor nacelle therefore have the same salutary effects irrespective of the power setting at which the engine is operated.
机译:一种噪声抑制器,用于安装在涡轮风扇发动机的排气端或后端。在抑制器内有固定的环形翼型件,其位置被设置成减小高温快速移动的射流排气和围绕其的低温缓慢移动的空气之间的相对速度。在抑制器机舱内是排气喷嘴,其将喷射排气的形状限制为基本上均匀的细长形状,而与发动机的功率设置无关。因此,抑制器机舱内的固定环翼型件具有相同的有益效果,而与发动机工作时的功率设定无关。

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