|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||181/213 ; 181/296 ; 60/262|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 42 인용 특허 : 0|
A broad band acoustic attenuator particularly useful for attenuating gas turbine engine noise utilizes a plurality of axially extending, open-ended, perforated cylinders concentrically arranged within the exhaust duct of the gas turbine engine for attenuating noise therefrom without imposing significant back pressure penalties.
An acoustic attenuator for heated exhaust gas from a gas turbine engine having a compressor, a combustor for heating compressed air from the compressor, turbine means driven by heated gases from the combustor, and a cylindrical exhaust duct for receiving only heated exhaust gases from said turbine means substantially without mixture with cooling fluid flow, said attenuator comprising: a plurality of open-ended cylinders extending axially within said cylindrical exhaust duct and substantially concentrically arranged within said exhaust duct, each of said ...