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    • 9. 发明公开
    • Air drag reduction for an undercarriage with skids of a rotary wing aircraft
    • Luftwiderstandsverringerungfürein Fahrwerk mit Landekufen einesDrehflügler
    • EP2610170A1
    • 2013-07-03
    • EP11380105.4
    • 2011-12-28
    • EUROCOPTER ESPAÑA, S.A.
    • Jimenez Garcia, Juan Manuel
    • B64C25/52
    • B64C25/52B64C2025/325B64C2230/20Y02T50/166
    • The invention pertains to an undercarriage (2) having skids for a rotary wing aircraft (1).
      For air drag reduction, the undercarriage (2) is equipped with a device (3), suitable for creating an artificial flow of air around the undercarriage (2), particularly at the vicinity of transverse elements (10-11), in order to delay / displace rearwards the location of the breaking point (27) and in order to increase the boundary layer energy.
      An embodiment proposes a series of slots or nozzle bores, allocating an extra airflow into the boundary layer, with the result of reducing the overall air drag of the undercarriage (2) as well as the air drag of the whole rotary wing aircraft (1), and thus provoking an air drag reduction effect.
    • 本发明涉及一种具有用于旋转翼飞机(1)的滑行板的起落架(2)。 为了减少空气阻力,起落架(2)装备有适于在起落架(2)周围产生人造气流的装置(3),特别是在横向元件(10-11)的附近,以便 延迟/向后移位断点(27)的位置,以便增加边界层能量。 一个实施例提出了一系列槽或喷嘴孔,将额外的气流分配到边界层中,结果是减小了起落架(2)的整体空气阻力以及整个旋翼飞机(1)的空气阻力, ,从而引起空气阻力降低效果。