Invention Application
US20120292441A1 SYSTEM AND METHOD FOR REDUCING THE NOISE OF PUSHER TYPE AIRCRAFT PROPELLERS
有权
用于减少推进式飞机螺旋桨噪声的系统和方法
- Patent Title: SYSTEM AND METHOD FOR REDUCING THE NOISE OF PUSHER TYPE AIRCRAFT PROPELLERS
- Patent Title (中): 用于减少推进式飞机螺旋桨噪声的系统和方法
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Application No.: US13111414Application Date: 2011-05-19
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Publication No.: US20120292441A1Publication Date: 2012-11-22
- Inventor: Mark Drela , John Gundlach , Robert Parks , Adam Scott Ehrmantraut
- Applicant: Mark Drela , John Gundlach , Robert Parks , Adam Scott Ehrmantraut
- Applicant Address: US VA MANASSAS
- Assignee: AURORA FLIGHT SCIENCES CORPORATION
- Current Assignee: AURORA FLIGHT SCIENCES CORPORATION
- Current Assignee Address: US VA MANASSAS
- Main IPC: B64C1/40
- IPC: B64C1/40

Abstract:
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.
Public/Granted literature
- US08622334B2 System and method for reducing the noise of pusher type aircraft propellers Public/Granted day:2014-01-07
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