|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||181/213 ; 181/269 ; 181/286 ; 181/292|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 72 인용 특허 : 0|
Core noise, a low frequency noise component believed to be partly caused by the combustion processes within the engine, and turbine noise, a higher frequency noise component caused by the interaction of high velocity gases with the engine\s turbine, are attenuated by noise absorbing structures that are disposed within the engine\s nozzle and that in part define the physical geometry of the nozzle duct. The nozzle is formed of an outer sleeve and an inner generally bulb-shaped plug which are coaxially arranged to define an annular nozzle duct that channel...
In a noise attenuating nozzle assembly for a turbojet propulsion engine having an annular, core-exhaust port and in which said nozzle assembly is of the type having an annularly-shaped sleeve that has an inner wall surface, and further having a plug that has a central axis and an outer wall surface of generally circular transverse section, said plug being mounted substantially coaxially within said sleeve so as to define an annular, core-exhaust duct between the inner wall surface of said sleeve and the outer wall surface of said plug, said sleeve and sa...