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1. 发明申请

US20130177392A1 Aircraft Airflow Modulation System and Method 有权
标题翻译：飞机气流调制系统及方法
公开(公告)号：US20130177392A1
公开(公告)日：2013-07-11
申请号：US13781584
申请日：2013-02-28
申请人： Northrop Grumman Corporation
发明人： George D. Rupp , Trajaen J. Troia
IPC分类号： F04D3/00
CPC分类号： F01D17/12 , F01D5/02 , F01D9/04 , F02C7/042 , F02K3/02 , F02K7/075 , F02K7/16 , F02K7/20 , F05D2220/10 , F05D2300/502 , Y02T50/672
摘要： The present invention relates to a mechanical system and method that modulates airflow in an aircraft inlet diffuser that is used in conjunction with an aircraft engine that integrates both a center turbine engine and a high Mach engine such as a constant volume combustor (CVC) arrangement or ramjet arrangement with intakes formed co-centrically about the turbine. The modulation system uses two articulating components, a movable air flow duct and an articulating cone. The air flow duct, in a first position, is in exclusive air flow communication with the circular intake face of the turbine in a first position to receive air from the intake diffuser. In this configuration the expandable cone is in a retracted position and does not redirect airflow and allows the aircraft to operates in low speed mode as only the turbo jet receives airflow. In a transition speed mode, the air flow duct is retracted to allow air flow to both the turbo jet and the CVC. At its widest expanse, the articulating cone completely covers the turbo jet circular intake face directing air solely to the high Mach aircraft engine to allow the aircraft to operate in high speed mode.
摘要翻译：本发明涉及一种机械系统和方法，其调节与整合中等涡轮发动机和诸如恒定体积燃烧室（CVC）排列的高马赫发动机的飞机发动机结合使用的飞行器入口扩散器中的气流，或冲压喷气式排气装置，与涡轮机共同形成进气口。调制系统使用两个铰接部件，一个可移动的空气流动管道和一个铰接锥体。处于第一位置的空气流动管道处于与来自涡轮机的圆形进气面的第一位置专用气流连通，以从进气扩散器接收空气。在该配置中，可膨胀锥体处于缩回位置，并且不会使气流重定向，并允许飞行器以低速模式操作，因为只有涡轮喷气机接收气流。在过渡速度模式中，空气流动管道缩回以允许空气流动到涡轮喷气机和CVC。铰链锥体完全覆盖涡轮喷气圆形进气面，将空气仅引导到高马赫飞机发动机，以使飞机能够以高速运行。

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