|국가/구분||United States(US) Patent 등록|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 10 인용 특허 : 15|
A device for attenuating acoustical noise from an exhaust nozzle of a turbojet is disclosed. The turbojet exhaust nozzle includes a central body defining the inner surface of the primary gas flow path. The central body includes an outer wall defining one, and only one, resonator cavity. The single resonator cavity is in fluid communication with the primary gas flow path via orifices through at least one upstream portion of the outer wall. The single resonator cavity and plurality of orifices compose a Helmholtz resonator.
The invention claimed is: 1. A central body disposed within an outer casing of a turbojet gas exhaust nozzle, defining a primary gas stream flow path therebetween, comprising:a first wall forming a first cavity, the first wall disposed between the first cavity and the primary gas stream flow path, and the first wall and the first cavity disposed downstream of a final turbine stage; anda plurality of orifices through at least one upstream portion of the first wall,wherein the plurality of orifices are in fluid communication with the first cavity and the p...