|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||244/073R ; 244/053R ; 239/265.23 ; 239/265.39 ; 239/265.43 ; 239/265.17|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 6 인용 특허 : 5|
A fixed geometry duct defining a gas turbine engine exhaust nozzle includes a plurality of circumferentially adjoining flat triangular facets and coaxial first and second openings at opposite ends thereof. A method of making the duct includes scribing a plurality of lines on a flat sheet metal plate to define the facets, and bending the plate at each of the lines to form the duct.
[ What is claimed is:] [1.] A gas turbine engine duct comprising a plurality of flat triangular facets rigidly joined together circumferentially in a mixed geometry, with coaxial first and second openings at opposite ends thereof.