Apparatus and method for reducing noise emissions from a gas...

Details Apparatus and method for reducing noise emissions from a gas... Apparatus and method for reducing noise emissions from a gas...

F - Mech Eng,Light,Heat,Weapons

02

C

F02C 7/045 (2006.01) B64C 1/40 (2006.01)

Patent

CA 2209881

Noise attenuating linings for a turbofan engine inlet are installed around the upper crown area and/or around the lower lip. The acoustical lining at the upper crown area attenuates those fan noise emissions which are normally reflected from the crown area downward toward the ground. The acoustical lining at the lower inlet lip attenuates those fan noise emissions which travel along the inner surface of the lip and are diffracted around the lower lip downward toward the ground.

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