Acoustic noise suppressing ducted fan propulsor mounting arrangement and treatments

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12195167
APP PUB NO 20230406483A1
SERIAL NO

18451619

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Abstract

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A general mounting method for ducted fan propulsors is disclosed. This mounting method uses extremely slender stators that connect the duct ring to the propulsor which is mounted in the middle and drives the rotor, fan or propeller. The slender stators take the form of spokes and as such are so slender that the midspan stresses within the spokes are dominated by axial tension loads rather than the shear loads experienced by conventional stators. The spokes may have an aerodynamic shape and damping methods may be used to retard spoke vibrations and transmission of engine vibrations to the duct and force. The duct itself is also stiffened by the spoke arrangement, thereby reducing low frequency vibration modes.

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Patent Owner(s)

Patent OwnerAddress
KANSAS UNIVERSITY OF1450 JAYHAWK BOULEVARD 245 STRONG HALL LAWRENCE KS 66045

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Barrett, Ronald Martin Lawrence, US 9 54
Haug, John Austin Austin, US 2 4
McNamee, Patrick Ian Topeka, US 2 4
Mudd, Joshua Donald Port St. Lucie, US 2 4
Prins, Dalton Bastiaan Clovis, US 2 4
Schumacher, Lauren Nicole Rolla, US 4 5
Werner, Nicholas Donald Overland Park, US 2 4

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