To provide a high lift device capable of suppressing physical interference between a slat and a main blade and reducing ambient noise without significantly changing a design of the slat.SOLUTION: A high lift device 11 provided on a main blade 10 of an aircraft 1 comprises: a slat 15; and a slat movement mechanism 16 for moving the slat 15 between a development position and a storage position, the slat 15 comprises: a slat front surface 21; a slat rear surface 22; and a fillet surface 23 between the slat front surface 21 and the slat rear surface 22. The slat rear surface 22 is formed into a curve surface which is a recess toward an inner part side of the slat 15, the fillet surface 23 is formed into a curve surface which is a salient toward an outer part of the slat 15. In a cross section cut in a plane orthogonal to a pitch axis direction of an aircraft, an inflection point P2 of the slat rear surface 22 and the fillet surface 23 is positioned on a lower side of an apex P1 on a front side of the main blade 10 in the storage.SELECTED DRAWING: Figure 3

    【課題】スラットの大幅な設計変更を行うことなく、スラットと母翼との物理的な干渉を抑制し、騒音を低減することができる高揚力装置等を提供する。【解決手段】航空機1の母翼10に設けられる高揚力装置11において、スラット15と、スラット15を展開位置と格納位置との間で移動させるスラット移動機構16とを備え、スラット15は、スラット前面21と、スラット後面22と、スラット前面21とスラット後面22との間のフィレット面23とを有し、スラット後面22は、スラット15の内部側に向かって凹となる曲面となっており、フィレット面23は、スラット15の外部側に向かって凸となる曲面となっており、航空機のピッチ軸方向に直交する面で切った断面において、スラット後面22とフィレット面23との変曲点P2は、格納時における母翼10の前方側の頂点P1よりも下方側に位置している。【選択図】図3


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    Title :

    HIGH LIFT DEVICE AND BLADE OF AIRCRAFT


    Additional title:

    高揚力装置及び航空機の翼


    Contributors:

    Publication date :

    2019-09-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



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