PROBLEM TO BE SOLVED: To simplify a structure in an inside of a muffler, and to improve muffling performance while restraining enlargement of the muffler.SOLUTION: An exhaust pipe structure includes an exhaust pipe (45) connected to an engine (4), and a muffler (43) disposed beneath the engine. The muffler has a muffler inlet (43a) for introducing exhaust gas in a rear side of a vehicle. The exhaust pipe has a rear part reverse pipe (62) for reversing a direction of the exhaust flow flowing to the rear side to the front side. The rear part reverse pipe is connected to the muffler inlet in a downstream end side. The muffler has a muffler outlet (43b) for discharging the exhaust gas, and the muffler outlet is provided in the vehicle front side. Accordingly, the exhaust gas flows from the rear to the front along one direction in the muffler.

    【課題】消音器内部の構造の簡略化を図ることができ、消音器の大型化を抑制しつつ消音性能を向上できるようにすること。【解決手段】エンジン(4)に接続される排気管(45)と、エンジンの下方に配置される消音器(43)とを備えて排気管構造が構成される。消音器には、排気を導入する消音器入口(43a)が車体後方に設けられる。排気管は、後方に流れる排気流の向きを前方に反転する後部反転管(62)を有する。後部反転管は、下流端側で消音器入口と接続される。消音器には排気を排出する消音器出口(43b)が設けられ、この消音器出口は車体前方に設けられている。これにより、消音器の内部は排気が後から前に一方向に流れる。【選択図】図4


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    Title :

    EXHAUST PIPE STRUCTURE OF VEHICLE


    Additional title:

    車両の排気管構造


    Contributors:

    Publication date :

    2015-12-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    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 / B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer / F02B INTERNAL-COMBUSTION PISTON ENGINES , Brennkraftmaschinen mit innerer Verbrennung mit Verdrängerwirkung



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