F - Mech Eng,Light,Heat,Weapons – 02 – K
Patent
F - Mech Eng,Light,Heat,Weapons
02
K
172/22, 60/86
F02K 1/28 (2006.01) F02C 7/045 (2006.01)
Patent
CA 1066517
Abstract of the Disclosure A sound-attenuating inlet duct is provided for a gas turbine engine wherein the inlet duct includes a casing defining, in serial flow relationship, a minimum area throat of predetermined axial extent, a diffuser and a cylindrical section. Sound-absorbent acoustic material is disposed upon the inner walls of the duct in the cylindrical section. A first amount of acoustic attenuation is provided by accelerating the motive fluid to high subsonic velocities through the throat. A second amount of acoustic attenuation is provided by locally accelerating the motive fluid in the vicinity of the acoustic material, thereby imparting a velocity component to the acoustic waves which is normal to the acoustic material, thereby enhancing absorption. By sizing the various sections of the inlet duct in a unique predetermined relationship the effects of the two sources of acoustic attenuation may be made additive.
248388
LandOfFree
Sound-attenuating inlet duct does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Sound-attenuating inlet duct, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sound-attenuating inlet duct will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-144092