|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||244/40R ; 244/41 ; 244/91 ; 416/23|
|발명자 / 주소|
|인용정보||피인용 횟수 : 37 인용 특허 : 0|
Device for diminishing tip vortices in an aircraft. For the purpose of diminishing the tip vortices generated by aircraft there are provided retractable foils at or near the airfoil, as wing, tips in question and projecting upwardly and/or downwardly therefrom. The operation of the retractable foils is satisfactory if such foils are parallel to the centerline of the aircraft but it is preferable if such foils are angled slightly with respect thereto, such as if the leading edge of the upper foil is angled approximately 10°inwardly toward the fuselage of ...
For an airfoil of an aircraft having a longitudinal centerline, wherein the airfoil includes an upper surface, a bottom surface and an end, the improvement comprising: a collapsible foil oriented substantially perpendicular to one said surface of said airfoil at least adjacent said end thereof and aligned at least approximately parallel to the longitudinal centerline of said aircraft; and controllable power means for selectably extending said foil into an extended position and collapsing said foil to a fully collapsed position, said collapsible foil in s...