|국가/구분||United States(US) Patent 등록|
|국제특허분류(IPC7판)||B64C-003/16 B64C-003/36 B64C-011/18|
|미국특허분류(USC)||244/203 ; 244/035R ; 244/035A ; 244/123 ; 244/130 ; 416/235 ; 416/243|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 4 인용 특허 : 2|
A jet airplane capable of supersonic flight has airfoils with leading edges. Each leading edge has a cavity which extends for substantially the entire length of the airfoil. The leading edge also has a cover which is approximately the same size as the cavity. The cover has an open position and a closed position. When the cover is in the open position, the leading portion has a concave profile. When the cover is in the closed position, the leading portion has a convex profile that gives the airfoil a conventional shape. The cover is rotated to the open po...
[ I claim:] [1.] An airfoil for an aircraft, comprising in combination:a leading portion;an unobstructed cavity formed in the leading portion and extending substantially the length of the airfoil, the cavity defining two parallel leading edges separated by the cavity, the cavity having a closed base and creating a shock wave forward of the leading portion while the airfoil is in supersonic airflow to retard temperature increase of the leading portion.