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1. 发明授权

US06718752B2 Deployable segmented exhaust nozzle for a jet engine 失效
标题翻译：喷气发动机可部署的分段排气喷嘴
公开(公告)号：US06718752B2
公开(公告)日：2004-04-13
申请号：US10157681
申请日：2002-05-29
申请人： Eric H. Nesbitt , George W. Butler , David H. Reed
发明人： Eric H. Nesbitt , George W. Butler , David H. Reed
IPC分类号： F02K110
CPC分类号： F02K1/48 , F02K1/46 , F05D2300/505 , Y02T50/672
摘要： An exhaust flow nozzle for a jet engine having a plurality of flow altering components extending from a lip portion of a secondary exhaust nozzle that are movable between first and second positions. In the first position the flow altering components are disposed substantially parallel to an exhaust gas flow path and thereby do not produce drag or a reduction of thrust from the engine. In the second position the flow altering components bend or are deformed to project into the exhaust gas flow path exiting from the secondary exhaust nozzle. The flow altering components are comprised of a shape-memory alloy material which deforms in response to heat. One or more additional layers of material are bonded or otherwise coupled to the shape-memory alloy layer of each flow altering component to assist in returning the shape-memory alloy layer to its unheated shape.
摘要翻译：一种用于喷气发动机的排气流喷嘴，具有从第二和第二位置可移动的二次排气喷嘴的唇部延伸的多个流动变化部件。在第一位置，流动改变部件基本上平行于废气流动路径设置，从而不产生来自发动机的阻力或减小推力。在第二位置，流动变化部件弯曲或变形以伸入从二次排气喷嘴排出的废气流动路径。流动变化部件由响应于热而变形的形状记忆合金材料构成。一个或多个另外的材料层被粘合或以其他方式耦合到每个流动变化部件的形状记忆合金层，以帮助将形状记忆合金层返回到其未加热的形状。

2. 发明授权

US07883049B2 Jet nozzle having noise attenuating shield and method therefor 有权
标题翻译：喷嘴具有噪声衰减屏蔽及其方法
公开(公告)号：US07883049B2
公开(公告)日：2011-02-08
申请号：US11741457
申请日：2007-04-27
申请人： Eric H. Nesbitt , Mark Yee , Ronen Elkoby , Leonard J. Hebert , Thomas E. Alston
发明人： Eric H. Nesbitt , Mark Yee , Ronen Elkoby , Leonard J. Hebert , Thomas E. Alston
IPC分类号： F02K1/44
CPC分类号： F02K1/827 , F02K1/44 , Y02T50/672
摘要： An arcuate or semi-circumferential shield in the shape of a visor that is adapted to be secured to an external surface of a nozzle housing of a jet nozzle to attenuate jet noise generated by the jet nozzle. The shield may be fixedly secured to the nozzle housing or movably supported so that it can be moved between retracted and deployed positions. When used as a fixedly mounted component, or when positioned in its deployed position, a downstream edge of the shield extends past a downstream edge of the nozzle housing and the shield is spaced apart from an outer surface of the nozzle housing to form a channel therebetween. The shield is preferably orientated at approximately a bottom dead center of the nozzle housing. The shield operates to attenuate jet installation noise, and particularly jet installation noise experienced during the takeoff phase of flight of a jet aircraft, as well as to reduce jet installation noise that would otherwise propagate forwardly toward the cockpit of the aircraft.
摘要翻译：一种适于固定在喷嘴的喷嘴壳体的外表面上的遮阳板形状的弧形或半圆形屏蔽件，以减少由喷嘴产生的喷射噪声。屏蔽件可以固定地固定到喷嘴壳体或可移动地支撑，使得其可以在缩回位置和展开位置之间移动。当用作固定安装的部件时，或当其位于其展开位置时，护罩的下游边缘延伸穿过喷嘴壳体的下游边缘，并且屏蔽件与喷嘴壳体的外表面间隔开以在其间形成通道。护罩优选地定位在喷嘴壳体的大致下死点处。盾牌可以减轻喷气式飞机安装噪音，特别是在喷气式飞机起飞阶段期间经受的喷气安装噪音，以及减少飞机安装噪音，否则将向前朝向飞机驾驶舱传播。

3. 发明授权

US6050527A Flow control device to eliminate cavity resonance 失效
标题翻译：流量控制装置消除腔体共振
公开(公告)号：US6050527A
公开(公告)日：2000-04-18
申请号：US183812
申请日：1997-12-19
申请人： Leonard J. Hebert , Wendell R. Miller , Eric H. Nesbitt , Jerry Piro , Michael L. Sangwin
发明人： Leonard J. Hebert , Wendell R. Miller , Eric H. Nesbitt , Jerry Piro , Michael L. Sangwin
IPC分类号： B64C23/00 , B64D33/02 , B64C21/06
CPC分类号： B64D33/02 , B64C23/00 , B64C2230/06 , B64C2230/20 , B64D2033/026 , Y02T50/166
摘要： A flow control device and method for eliminating flow-induced cavity resonance within a closed or nearly closed end flow passage (20) having an inlet opening (30) defined between an upstream inlet edge (32) and a downstream inlet edge (34). The passage accepts exterior fluid flow (38) therein via the opening (30). The flow control device includes a stationary inlet guide vane (44) having a leading edge (46), a trailing edge (48), and a number of support members (50) to connect the vane to the inlet. The vane (44) is positioned such that the vane leading edge intercepts the exterior fluid flow shear layer, and the vane trailing edge extends into the passage at the inlet. In a preferred embodiment, the inlet guide vane is located approximately midway between the upstream and downstream inlet edges. The inlet guide vane is cross-sectionally shaped as a cambered airfoil. Flow-induced cavity resonance is reduced or eliminated in the closed or nearly closed end passage through the interception of the free shear layer passing over the inlet opening with an inlet guide vane flow control device.
摘要翻译：一种流动控制装置和方法，用于消除闭合或近闭合的端部流动通道（20）内的流动感应腔共振，该流动通道具有限定在上游入口边缘（32）和下游入口边缘（34）之间的入口（30）。通道经由开口（30）接收其中的外部流体流（38）。流量控制装置包括具有前缘（46），后缘（48）和用于将叶片连接到入口的多个支撑构件（50）的固定入口引导叶片（44）。叶片（44）被定位成使得叶片前缘拦截外部流体流动剪切层，并且叶片后缘延伸到入口处的通道中。在优选实施例中，入口引导叶片位于上游和下游入口边缘之间的大致中间位置。入口导向叶片的横截面形状为弧形翼型。通过通过入口引导叶片流量控制装置拦截通过入口开口的自由剪切层，在闭合或近闭合的端部通道中减少或消除了流动诱发的腔共振。

4. 发明申请

US20080264718A1 JET NOZZLE HAVING NOISE ATTENUATING SHIELD AND METHOD THEREFOR 有权
标题翻译：喷气喷嘴具有噪音降低的防护及其方法
公开(公告)号：US20080264718A1
公开(公告)日：2008-10-30
申请号：US11741457
申请日：2007-04-27
申请人： Eric H. Nesbitt , Mark Yee , Ronen Elkoby , Leonard J. Hebert , Thomas E. Alston
发明人： Eric H. Nesbitt , Mark Yee , Ronen Elkoby , Leonard J. Hebert , Thomas E. Alston
IPC分类号： F02K1/44
CPC分类号： F02K1/827 , F02K1/44 , Y02T50/672
摘要： An arcuate or semi-circumferential shield in the shape of a visor that is adapted to be secured to an external surface of a nozzle housing of a jet nozzle to attenuate jet noise generated by the jet nozzle. The shield may be fixedly secured to the nozzle housing or movably supported so that it can be moved between retracted and deployed positions. When used as a fixedly mounted component, or when positioned in its deployed position, a downstream edge of the shield extends past a downstream edge of the nozzle housing and the shield is spaced apart from an outer surface of the nozzle housing to form a channel therebetween. The shield is preferably orientated at approximately a bottom dead center of the nozzle housing. The shield operates to attenuate jet installation noise, and particularly jet installation noise experienced during the takeoff phase of flight of a jet aircraft, as well as to reduce jet installation noise that would otherwise propagate forwardly toward the cockpit of the aircraft.
摘要翻译：一种适于固定在喷嘴的喷嘴壳体的外表面上的遮阳板形状的弧形或半圆形屏蔽件，以减少由喷嘴产生的喷射噪声。屏蔽件可以固定地固定到喷嘴壳体或可移动地支撑，使得其可以在缩回位置和展开位置之间移动。当用作固定安装的部件时，或当其位于其展开位置时，护罩的下游边缘延伸穿过喷嘴壳体的下游边缘，并且屏蔽件与喷嘴壳体的外表面间隔开以在其间形成通道。护罩优选地定位在喷嘴壳体的大致下死点处。盾牌可以减轻喷气式飞机安装噪音，特别是在喷气式飞机起飞阶段期间经受的喷气安装噪音，以及减少飞机安装噪音，否则将向前朝向飞机驾驶舱传播。

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