PROBLEM TO BE SOLVED: To provide an exhaust gas sensor arrangement structure which enables exhaust gas sensors to be arranged in front of and behind a catalyst without impairing the detection accuracy.SOLUTION: An exhaust gas sensor arrangement structure according to the invention includes: a catalyst (8) which purifies an exhaust gas of an engine (3); exhaust gas sensors (9) which detect an exhaust gas component of the engine; and a chamber (7) disposed behind the engine. The catalyst is provided below the engine and at least partially disposed in the chamber. The exhaust gas sensors include: an upstream side sensor (90) disposed at an upstream side of the catalyst; and a downstream side sensor (91) provided at a downstream side of the catalyst. The upstream side sensor is disposed below the engine. The downstream side sensor is disposed in the chamber.SELECTED DRAWING: Figure 2

    【課題】検出精度を損なうことなく排気ガスセンサを触媒の前後に配置すること。【解決手段】本発明に係る排気ガスセンサの配置構造は、エンジン(3)の排気ガスを浄化する触媒(8)と、エンジンの排気ガス成分を検出する排気ガスセンサ(9)と、エンジンの後方に配置されるチャンバ(7)と、を備える。触媒は、エンジンの下方に設けられ、少なくとも一部がチャンバ内に配置される。排気ガスセンサは、触媒の上流側に設けられる上流側センサ(90)と、触媒の下流側に設けられる下流側センサ(91)と、を有する。上流側センサはエンジンの下方に配置される。下流側センサはチャンバに配置される。【選択図】図2


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    Title :

    EXHAUST GAS SENSOR ARRANGEMENT STRUCTURE


    Additional title:

    排気ガスセンサの配置構造


    Contributors:

    Publication date :

    2017-12-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen / B62J Fahrrad- oder Motorradsättel oder -sitze , CYCLE SADDLES OR SEATS / B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer / 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



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