发明授权
US08622334B2 System and method for reducing the noise of pusher type aircraft propellers
有权
降低推进式飞机螺旋桨噪音的系统和方法
- 专利标题: System and method for reducing the noise of pusher type aircraft propellers
- 专利标题(中): 降低推进式飞机螺旋桨噪音的系统和方法
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申请号: US13111414申请日: 2011-05-19
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公开(公告)号: US08622334B2公开(公告)日: 2014-01-07
- 发明人: Mark Drela , John Gundlach , Robert Parks , Adam Scott Ehrmantraut
- 申请人: Mark Drela , John Gundlach , Robert Parks , Adam Scott Ehrmantraut
- 申请人地址: US VA Manassas
- 专利权人: Aurora Flight Sciences Corporation
- 当前专利权人: Aurora Flight Sciences Corporation
- 当前专利权人地址: US VA Manassas
- 代理机构: Katten Muchin Rosenman LLP
- 主分类号: B64C1/40
- IPC分类号: B64C1/40
摘要:
A system and method for reducing the noise penalty of a pusher propeller, allowing an aircraft to retain its advantages for UAV configurations, while allowing acoustic performance similar to that of a tractor propeller by reducing, or eliminating, propeller noise emissions. The system and method provide an airfoil-shaped flight surface with (i) a scoop configured to route boundary layer air and associated wake from said flight surface, and (ii) a suction device configured to provide a suction pressure, wherein the scoop routes boundary layer air from the flight surface to the suction device via an opening in the flight surface.
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