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1. (US20120097791) Autonomous slat-cove-filler device for reduction of aeroacoustic noise associated with aircraft systems

专利局 : 美国
申请号: 13277859 申请日: 20.10.2011
公布号: 20120097791 公布日: 26.04.2012
授权号: 09242720 授权日: 26.01.2016
公布类型: B2
国际专利分类:
B64C 9/24
B64C 9/22
B64C 3/48
B 作业;运输
64
飞行器;航空;宇宙航行
C
飞机;直升飞机
9
可调节的操纵面或操纵部件,例如舵
14
形成翼缝的
22
在机翼前部的
24
用单个襟翼的
B 作业;运输
64
飞行器;航空;宇宙航行
C
飞机;直升飞机
9
可调节的操纵面或操纵部件,例如舵
14
形成翼缝的
22
在机翼前部的
B 作业;运输
64
飞行器;航空;宇宙航行
C
飞机;直升飞机
3
机翼
38
整个机翼或其部件的调整
44
改变弯度的
48
用机翼结构可相对移动的部件
申请人: Travis L. Turner
The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
Reggie T. Kidd
David P Lockard
Mehdi R. Khorrami
Craig L. Streett
Douglas Leo Weber
发明人: Travis L. Turner
Reggie T. Kidd
David P Lockard
Mehdi R. Khorrami
Craig L. Streett
Douglas Leo Weber
代理人: Andrea Z. Warmbier
优先权数据:
标题: (EN) Autonomous slat-cove-filler device for reduction of aeroacoustic noise associated with aircraft systems
摘要: front page image
(EN)

A slat cove filler is utilized to reduce airframe noise resulting from deployment of a leading edge slat of an aircraft wing. The slat cove filler is preferably made of a super elastic shape memory alloy, and the slat cove filler shifts between stowed and deployed shapes as the slat is deployed. The slat cove filler may be configured such that a separate powered actuator is not required to change the shape of the slat cove filler from its deployed shape to its stowed shape and vice-versa. The outer contour of the slat cove filler preferably follows a profile designed to maintain accelerating flow in the gap between the slat cove filler and wing leading edge to provide for noise reduction.