An exhaust pipe structure of an internal combustion engine vehicle and a and method for manufacturing internal combustion engine vehicle are provided. The exhaust pipe structure includes a coupling part coupling a first exhaust pipe to a second exhaust pipe disposed serially. The coupling part includes an insertion pipe part formed in the second exhaust pipe, an outer circumferential pipe part formed in the first exhaust pipe and to which the insertion pipe part is inserted, an inner circumferential pipe inserted into the outer circumferential pipe part, an annular protrusion formed in the second exhaust pipe and protruding radially outward from the entire circumference of the insertion pipe part, and a clamp member coupling the outer circumferential pipe part to the annular protrusion. The clamp member has a band part wrapped radially outside around a part where a flare part of the outer circumferential pipe part overlaps with the annular protrusion, and a tightening part tightening the band part. As a result, the exhaust pipe structure of the present invention is compact in the radial direction, and can improve air tightness.

    本发明提供一种内燃机搭载车辆的排气管结构及内燃机搭载车辆制造方法。本发明的排气管结构具备将相邻的排气管连结的连结部。连结部包括:插入管部,形成于第二排气管;外周管部,形成于第一排气管,让插入管部插入;内周管,插入在外周管部,该内周管的一方的端部固定于第一排气管的内周面,另一方的端部插入在插入管部的内部;环状凸部,形成在第二排气管上与插入管部相邻的位置,并且在整周范围向插入管部的径向外侧突出;以及夹持构件,将外周管部和环状凸部连结。夹持构件具有:箍带部分,从外周侧围装在外周管部的扩口部与环状凸部叠合的部分;以及紧固部分,将箍带部分紧固。由此,本发明的排气管结构在径向上紧凑,而且能够提高气密性。


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    Titel :

    Exhaust pipe structure for internal combustion engine vehicle and method for manufacturing internal combustion engine vehicle


    Weitere Titelangaben:

    内燃机搭载车辆的排气管结构及内燃机搭载车辆制造方法


    Beteiligte:
    HIRAOKA TETSUO (Autor:in)

    Erscheinungsdatum :

    2021-05-18


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    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 / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES





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