|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||181/214 ; 181/213 ; 181/222 ; 181/286|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 20 인용 특허 : 5|
A quiet nacelle system for jet aircraft engines includes a nose cowl and nose dome having a sound-attenuating liner, a concentric ring between the nose cowl and nose dome, and fan duct components having a sound-attenuating liner. The system is particularly suitable for JT3D-3B and JT3D-7 engines for use with DC-8 aircraft. The components may be combined as a hush kit for retrofit in existing nacelle systems.
In an aircraft jet engine nacelle adapted to permit operation of the aircraft at low noise levels at take-off and landing, the combination comprising: (a) a nose cowl defining an inlet, the nose cowl having an airflow surface with an acoustic liner on substantially the entire airflow surface thereof, and anti-icing means disposed at least in part at the forwardmost portion of the nose cowl and having an acoustic liner thereon; (b) a nose dome portion on a fan section for the engine, the nose dome portion having an airflow surface with an acoustic liner o...