The invention belongs to the field of semiconductor devices, and relates to an exhaust pipe of a marine engine, which comprises a pipe body and a wave absorbing body, the tube body is of a cylindrical structure, the wave-absorbing body is arranged in the tube body, and a gap is formed between the wave-absorbing body and the tube wall of the tube body; the wave absorbing body is of a cylindrical structure and surrounds the inner wall of the pipe body. The wave absorbing body is of a double-layer structure, a base material is a ceramic layer, and an auxiliary material is a semiconductor resistance layer; the wave absorbing body is fixed on the inner wall of the pipe body through the truss; the truss is connected with the inner wall of the pipe body through a stud; the length of the stud is 4mm; the truss comprises a plurality of truss units, and the wave absorbing body comprises a plurality of wave absorbing body units; the truss units and the wave absorbing body units are distributed in an array and are in one-to-one correspondence; the truss units are of a rectangular structure, the wave absorbing body units are of a *-shaped structure, and the edges of the wave absorbing body units are fixedly connected with the corresponding truss units. Electromagnetic waves entering the exhaust pipe can be absorbed, and the cost is low.

    本申请属于半导体器件领域,涉及一种船用发动机的排气管,包括:管体以及吸波体;管体呈筒状结构,吸波体设在管体的内部,且与管体的管壁具有间隙;吸波体呈筒状结构且环绕管体的内壁;吸波体为双层结构,其中,基材为陶瓷层,辅材为半导体电阻层;吸波体通过桁架固定在管体的内壁上;桁架通过螺柱与管体的内壁连接;螺柱的长度为4mm;桁架包括若干桁架单元,吸波体包括若干吸波体单元;桁架单元和吸波体单元均呈阵列分布且一一对应;桁架单元呈矩形结构,吸波体单元呈“米”字型结构,且吸波体单元的边缘与对应桁架单元固定相连。采用本申请能够吸收进入排气管的电磁波,且成本低。


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    Title :

    Exhaust pipe of marine engine


    Additional title:

    一种船用发动机的排气管


    Contributors:
    ZHOU CHANG (author) / LI YAOHUA (author) / XIA JING (author) / HE ZHENGTAI (author) / WANG ZHONGWEI (author) / ZHU XUEKANG (author) / YANG HUARONG (author) / YAN YUJIE (author) / WANG NAN (author)

    Publication date :

    2023-03-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F01N GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL , Schalldämpfer oder Auspuffvorrichtungen für Gase von Kraft- und Arbeitsmaschinen oder von Kraftmaschinen allgemein / B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING



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