To inhibit heat damage to a heat exchanger caused by heat from a catalyst to improve cooling performance of an engine.SOLUTION: A motor cycle includes: a vehicle body frame 2; an engine 9 supported by the vehicle body frame 2; an exhaust pipe 86 in which exhaust gas exhausted from an exhaust port 60 of the engine 9 flows; a catalyst 81 which is provided within the exhaust pipe 86 and disposed in front of the engine 9; and a heat exchanger 14 disposed in front of the engine 9. The vehicle body frame 2 includes a down frame 23 extending downward from a head pipe 21. In a vehicle front view, the catalyst 81 is disposed at one side of the down frame 23 as seen in the lateral direction, and the heat exchanger 14 is disposed at the other side of the down frame 23 as seen in the lateral direction. In a vehicle side view, at least a part of the catalyst 81 and at least a part of the heat exchanger 14 overlap with the down frame 23.SELECTED DRAWING: Figure 4

    【課題】触媒からの熱による熱交換器への熱害を抑制し、エンジンの冷却性能を向上させる。【解決手段】自動二輪車は、車体フレーム2と、車体フレーム2に支持されるエンジン9と、エンジン9の排気口60から排出される排気ガスが流れる排気管86と、排気管86内に設けられ、エンジン9の前方に配置される触媒81と、エンジン9の前方に配置される熱交換器14と、を備え、車体フレーム2は、ヘッドパイプ21から下方に延びるダウンフレーム23を備え、車両前面視で、ダウンフレーム23の左右方向一方側に触媒81が配置され、ダウンフレーム23の左右方向他方側に熱交換器14が配置されており、車両側面視で、触媒81の少なくとも一部と熱交換器14の少なくとも一部がダウンフレーム23と重なっている。【選択図】図4


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    Title :

    MOTOR CYCLE


    Additional title:

    自動二輪車


    Contributors:

    Publication date :

    2020-02-13


    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 / F01P Kühlung von Kraft- und Arbeitsmaschinen oder Kraftmaschinen allgemein , COOLING OF MACHINES OR ENGINES IN GENERAL / B62K Fahrräder , CYCLES / B62J Fahrrad- oder Motorradsättel oder -sitze , CYCLE SADDLES OR SEATS



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