The invention relates to a ventilated air intake system (10) for a turbofan engine core compartment (4). The ventilation air inlet system (10) comprises an air inlet pipe (1) allowing air flow to enter the core cabin (4); the ventilation air inlet shell (2) is provided with an air inlet end (2a) communicated with the air inlet pipe (1), an opposite end (2b) opposite to the air inlet end (2a) and a central axis (X) penetrating through the air inlet end (2a) and the opposite end (2b); and the at least one exhaust grid (3) is arranged on the ventilation air inlet shell (2). The cross-sectional area (S) of the ventilation intake housing (2) taken on each plane perpendicular to the central axis (X) varies between the intake end (2a) and the opposite end (2b) in a first increasing and then decreasing manner. The problem that a ventilation cooling device cannot give consideration to improvement of air inlet uniformity and reduction of total pressure loss is solved, and the ventilation heat exchange efficiency in a core cabin can be improved.

    本发明涉及一种用于涡扇发动机核心舱(4)的通风进气系统(10)。该通风进气系统(10)包括:允许气流进入核心舱(4)的进气管(1);通风进气壳体(2),通风进气壳体(2)具有与进气管(1)连通的进气端(2a)、与进气端(2a)相对的相对端(2b)和穿过进气端(2a)和相对端(2b)的中心轴线(X);以及开设在通风进气壳体(2)上的至少一条排气格栅(3)。通风进气壳体(2)在垂直于中心轴线(X)的各个平面上截取的横截面积(S)在进气端(2a)和相对端(2b)之间以先增大再缩小的方式变化。本发明解决了通风冷却装置无法兼顾改善进气均匀性和降低总压损失的问题,有助于提升核心舱内的通风换热效率。


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    Titel :

    Ventilation air inlet system for core compartment of turbofan engine


    Weitere Titelangaben:

    用于涡扇发动机核心舱的通风进气系统


    Beteiligte:
    WANG YAN (Autor:in) / DENG MING (Autor:in) / LIU HAO (Autor:in) / ZHAO QIANG (Autor:in) / ZHOU LEISHENG (Autor:in) / CUI YUCHAO (Autor:in)

    Erscheinungsdatum :

    2022-12-02


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    F02C Gasturbinenanlagen , GAS-TURBINE PLANTS / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT




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