|국가/구분||United States(US) Patent 등록|
|국제특허분류(IPC7판)||F02K-003/02 F02K-003/00 F02K-001/34 F02K-001/00 F02K-001/40|
|미국특허분류(USC)||060/226.1; 060/262; 060/230; 060/231; 181/213; 181/220; 239/265.17; 239/265.35|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 11 인용 특허 : 21|
An embodiment of the invention is a technique to suppress noise in a jet engine. A noise suppressor includes an exhaust duct to exhaust a first stream from an air stream taken from an inlet. The exhaust duct has an exit end. The air stream is divided into the first stream and a second stream. The second stream has an axis. A stream director attached to vicinity of the exit end directs the first stream to a direction that is away from or sideward relative to the axis.
What is claimed is: 1. A turbofan jet engine comprising: a first exhaust duct to exhaust a first stream through a first exit end from an air stream taken from an inlet, the air stream being divided into the first stream and a second stream, one of the first and second streams being a fan bypass stream; a second exhaust duct to exhaust the second stream through a second exit end, the first and second streams being substantially coaxial at the first and second exit ends; and a noise-reducing stream director attached to a vicinity of at least one of the fi...