PROBLEM TO BE SOLVED: To provide a cooling device for a saddle ride vehicle internal combustion engine capable of ensuring smooth air exhaust, high air exhaust efficiency, and a large intake air volume, and improving radiator cooling efficiency while taking advantage of an axial-flow cooling fan.SOLUTION: In a saddle ride vehicle internal combustion engine cooling device in which a radiator 6 is disposed laterally of an internal combustion engine 3 including a crankshaft 31 oriented in a vehicle width direction, an axial-flow cooling fan 7 interlocked with the crankshaft 31 and having a rotational axis X parallel to an axis of the crankshaft 31 is disposed inward of the radiator 6, and a fan case 8 which includes an air exhaust port 70 formed therein for discharging cooling air passing through the radiator 6 and in which the axial-flow cooling fan 7 is disposed is arranged downstream of the radiator, the axial-flow cooling fan 7 includes: a vane section 71 having a plurality of vanes 71a formed therein; and a latter half section 72 disposed downstream of the vane section 71, and the air exhaust port 70 is provided at a position at which the air exhaust port 70 overlaps the latter half section 72 in a direction of the rotation axis X.

    【課題】円滑な排風で排風効率が良く、吸込風量が大きく、軸流式冷却ファンの利点を活かして、ラジエータの冷却効率が向上する鞍乗型車両用内燃機関の冷却装置。【解決手段】車幅方向を指向したクランク軸31を備える内燃機関3の側方にラジエータ6が配置され、クランク軸と連動しクランク軸線と平行な回転軸線Xを有する軸流式冷却ファン7がラジエータの内方に配置され、ラジエータを通過した冷却風を排出する排風口70が形成され且つ内部に軸流式冷却ファンが配置されるファンケース8が、ラジエータよりも下流側に設けられた鞍乗型車両用内燃機関の冷却装置において、軸流式冷却ファンは、複数の羽板71aが形成された羽部71と、羽部よりも下流側に配設された後半部72とを備え、排風口が、回転軸線方向で後半部と重なる位置に設けられた。【選択図】図3


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    Title :

    COOLING DEVICE FOR SADDLE RIDE VEHICLE INTERNAL COMBUSTION ENGINE


    Additional title:

    鞍乗型車両用内燃機関の冷却装置


    Contributors:

    Publication date :

    2015-08-06


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

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



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