Advanced trailing edge control surface on the wing of an...

Details Advanced trailing edge control surface on the wing of an... Advanced trailing edge control surface on the wing of an...

B - Operations, Transporting

64

C

B64C 9/14 (2006.01) B64C 9/18 (2006.01) B64C 21/02 (2006.01)

Patent

CA 2622320

The invention relates to an advanced trailing edge control surface on the wing of an aircraft. The wing (1) comprises on its trailing edge a flap (4) that runs in the direction of the wingspan and can be pivoted into various positions, a sealing flap (5) that is situated on the upper side between the wing (1) and the flap (4) and a ventilation flap (5) that is mounted on the underside between the wing (1) and the flap (4) so that it can pivot. According to the invention, the flap (4) can be pivoted through positive positions downwards and through negative positions upwards. When the flap (4) is used as a control flap, with pivoted positions of said flap ranging between negative and low positive value flap positions, the upper side of the wing profile is closed by the sealing flap (7) and the underside is closed by the ventilation flap (5) and when the flap (4) is used to increase the uplift, with pivoted positions of the flap (4) ranging between low positive value positions and high positive value positions, the ventilation flap (5) releases an air flow from the underside of the wing (1) to the upper side of the flap (4) and the sealing flap (7) is retracted to form a predefined gap, in order to release an outflow of air from the upper side of the flap (4).

L'invention concerne un bord de fuite progressiste d'aile d'avion, comprenant une aile (1), un volet (4) qui est disposé sur le bord de fuite de l'aile (1), s'étend dans le sens de l'empattement et peut être ajusté à différentes amplitudes, un volet d'étanchéité (7) à déplacement pivotant, disposé entre l'aile (1) et le volet (4) et un clapet de ventilation (5) à déplacement pivotant disposé sur la face inférieure, entre l'aile (1) et le volet (4). Selon l'invention, il est prévu que le volet (4) puisse être ajusté aussi bien vers le bas, sous l'effet d'amplitudes positives, que vers le haut, sous l'effet d'amplitudes négatives. Lorsque le volet (4) fait office de volet de commande, avec des ajustements dudit volet entre des amplitudes négatives et de faibles amplitudes positives, le profil de l'aile est fermé au niveau de la face supérieure par le volet d'étanchéité (7) et au niveau de la face inférieure, par le clapet de ventilation (5). Lorsque le volet (4) fait office de volet hypersustentateur, avec des ajustements du volet (4) entre de faibles amplitudes négatives et d'importantes amplitudes positives, le clapet de ventilation (5) libère un écoulement allant de la face inférieure de l'aile (1) à la face supérieure du volet (4) et le volet d'étanchéité (7) est éloigné d'une fente prédéterminée, pour libérer le courant latéral provenant de la face supérieure du volet (4).

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