The invention discloses a lobe bent spray pipe injection mixer and an aircraft, and belongs to the technical field of aero-engine exhaust systems, and the lobe bent spray pipe injection mixer comprises a lobe bent spray pipe, a central pipe and a mixing pipe; an inlet of the lobe bent spray pipe is communicated with an engine exhaust channel and is an annular inlet, and an outlet of the lobe bent spray pipe is a kidney-shaped lobe outlet. The central pipe is arranged in the lobe bent spray pipe, the central pipe is used for containing a turboshaft engine power turbine bearing force cylinder, the outer wall of the central pipe and the inner wall of the lobe bent spray pipe jointly form a flow channel molded surface, and the flow channel molded surface is a gradually-expanding molded surface along the flow channel center line. The outlet end of the lobe bent spray pipe is inserted into the inlet end of the mixing pipe, and an injection mixing flow channel is formed between the lobe bent spray pipe and the mixing pipe and used for being communicated with an inner cavity of a power cabin. The ventilation cooling effect of the power turbine rear output type turboshaft engine can be improved.

    本申请公开了一种波瓣弯曲喷管引射混合器及飞行器,属于航空发动机排气系统技术领域,其中波瓣弯曲喷管引射混合器包括波瓣弯曲喷管、中心管以及混合管;波瓣弯曲喷管入口与发动机排气通道连通,波瓣弯曲喷管入口为环形入口,出口为腰形波瓣出口;中心管设置于波瓣弯曲喷管内,中心管内用于容纳涡轴发动机动力涡轮轴承力筒,中心管外壁与波瓣弯曲喷管内壁共同形成流道型面,流道型面为沿流道中心线的渐扩型型面;波瓣弯曲喷管的出口端插入到混合管的入口端内,且波瓣弯曲喷管与混合管之间形成引射掺混流道,引射掺混流道用于与动力舱内腔连通。本申请能够提升动力涡轮后输出式涡轴发动机通风冷却效果。


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    Titel :

    Lobe bent spray pipe injection mixer and aircraft


    Weitere Titelangaben:

    波瓣弯曲喷管引射混合器及飞行器


    Beteiligte:
    DING JINTAO (Autor:in) / HUANG XING (Autor:in) / ZHANG LINA (Autor:in) / QIU JIANG (Autor:in) / LUO XIAO (Autor:in)

    Erscheinungsdatum :

    2024-04-12


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    F02K JET-PROPULSION PLANTS , Strahltriebwerke / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT



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