To use an air-cooling mechanism which does not have an actuator to introduce airflow needed for a cooling object component, such as a radiator, efficiently according to flight conditions of a helicopter.SOLUTION: A cooling duct 10 for introducing airflow to a cooling object device 6 provided at an airframe of a helicopter 1 includes: a duct body 11 disposed below a main rotor 2 of the helicopter 1 and adjacent to the cooling object device 6; a front opening 15 formed at the airframe front side of the duct body 11; an upper opening 16 formed at the airframe upper side of the duct body 11; a hinge 31 which is disposed at an upper part of the duct body 11 and has a rotary shaft 31a extending in a lateral direction of the airframe; and a movable vane plate 21 which is pivotally supported at one end by the hinge 31 and is provided so as to be rotatable around the rotary shaft 31a between a first position 21A where the movable vane plate 21 closes the front opening 15 and a second position 21B where the movable vane plate 21 closes the upper opening 16.SELECTED DRAWING: Figure 5

    【課題】アクチュエータを有さない空冷機構を用いて、ヘリコプタの飛行状態に応じて、ラジエータ等の冷却対象部品に対して必要な空気流を効率的に導入する。【解決手段】ヘリコプタ1の機体に設けられた冷却対象装置6に空気流を導入するための冷却ダクト10であって、ヘリコプタ1のメインロータ2よりも下方で、冷却対象装置6に隣接して配置されたダクト本体11と、ダクト本体11の機体前方側に形成された前方開口15と、ダクト本体11の機体上方側に形成された上方開口16と、ダクト本体11の上部に配置され、機体左右方向に延びる回動軸31aを有するヒンジ31と、ヒンジ31に一端が軸支され、前方開口15を塞ぐ第1位置21Aと上方開口16を塞ぐ第2位置21Bとの間で、回動軸31aを中心に回動自在に設けられた可動翼板21と、を備える。【選択図】図5


    Access

    Download


    Export, share and cite



    Title :

    COOLING DUCT


    Additional title:

    冷却ダクト


    Contributors:
    YAMADA UMI (author)

    Publication date :

    2020-11-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / B64C AEROPLANES , Flugzeuge



    COOLING DUCT

    ITO NAOTO / FUKAYA RYOSUKE | European Patent Office | 2023

    Free access

    COOLING DUCT

    ITO NAOTO / SAKABE MOTOCHIKA | European Patent Office | 2022

    Free access

    COOLING DUCT

    YAMADA KAI | European Patent Office | 2020

    Free access

    COOLING DUCT

    ITO NAOTO / FUKAYA RYOSUKE | European Patent Office | 2023

    Free access

    COOLING DUCT

    KOBAYASHI TAKENORI / IWASE KAZUYUKI | European Patent Office | 2019

    Free access