A cooling structure for a saddle-type vehicle includes a main frame; an engine; an exhaust pipe extending rearward from a front portion of the engine; fuel tanks disposed laterally of the engine; and a skid plate covering front portions of the engine and the exhaust pipe. The skid plate includes ope
A cooling structure for a saddle-type vehicle includes a main frame; an engine; an exhaust pipe extending rearward from a front portion of the engine; fuel tanks disposed laterally of the engine; and a skid plate covering front portions of the engine and the exhaust pipe. The skid plate includes openings defined in a central upper portion thereof for introducing ram air from a front of the vehicle toward the engine. The openings are covered with a mesh member. The skid plate has first bulging portions bulging forwardly on both sides of the openings. The fuel tanks include bulging tank portions disposed rearward of and along the first bulging portions and covering front portions of the engine. Ram air guided toward a central area in a vehicle widthwise direction by the first bulging portions passes through the mesh member and the openings to cool the exhaust pipe and the engine.
대표청구항▼
1. A cooling structure for a saddle-type vehicle comprising: a main frame extending obliquely rearward and downward from a head pipe;an engine supported on the main frame;an exhaust pipe extending rearward from a front portion of the engine;fuel tanks disposed laterally of the engine;a skid plate co
1. A cooling structure for a saddle-type vehicle comprising: a main frame extending obliquely rearward and downward from a head pipe;an engine supported on the main frame;an exhaust pipe extending rearward from a front portion of the engine;fuel tanks disposed laterally of the engine;a skid plate covering the front portion of the engine and the exhaust pipe, the skid plate having openings defined in a central upper portion thereof for introducing ram air from a front of the vehicle toward the engine,wherein the openings are covered with a mesh member,the skid plate has first bulging portions bulging forward on both sides of the openings,the fuel tanks include bulging tank portions disposed rearward of and along the first bulging portions and covering the front portion of the engine, andthe ram air guided toward a central area in a vehicle widthwise direction by the first bulging portions passes through the mesh member and the openings to cool the exhaust pipe and the engine. 2. The cooling structure for a saddle-type vehicle according to claim 1, wherein the skid plate includes on a central lower portion thereof a second bulging portion that bulges forwardly along the exhaust pipe, andthe second bulging portion is disposed below the mesh member. 3. The cooling structure for a saddle-type vehicle according to claim 2, wherein the fuel tanks include cavities defined as dented portions of front walls and inner walls thereof,the mesh member overlaps at least portions of the cavities in a vehicle longitudinal direction, andthe ram air that has passed through the mesh member is collected to the central area in the vehicle widthwise direction by the cavities. 4. The cooling structure for a saddle-type vehicle according to claim 2, wherein a front fender that covers an upper portion of a front wheel is disposed forward of the skid plate, andthe front fender is of a shape substantially along an outer profile of the front wheel, anda lower end portion of the front fender is oriented toward the mesh member for guiding the ram air toward the mesh member. 5. The cooling structure for a saddle-type vehicle according to claim 2, wherein a down frame that extends substantially downward from the head pipe is disposed below the main frame,the down frame comprises a branched area where the down frame is branched into left and right portions in a vicinity of an upper edge of the mesh member, andthe exhaust pipe extends forward from the engine so as to pass between the left and right portions of the down frame below the branched area. 6. The cooling structure for a saddle-type vehicle according to claim 1, wherein the fuel tanks include cavities defined as dented portions of front walls and inner walls thereof,the mesh member overlaps at least portions of the cavities in a vehicle longitudinal direction, andthe ram air that has passed through the mesh member is collected to the central area in the vehicle widthwise direction by the cavities. 7. The cooling structure for a saddle-type vehicle according to claim 6, wherein radiators are disposed in the cavities upwardly of the skid plate,each of the radiators are inclined such that an inner side thereof in the vehicle widthwise direction is positioned rearward of an outer side thereof in the vehicle widthwise direction, andrear surfaces of the cavities are spaced rearward of the radiators and extend along the inclination of the radiators. 8. The cooling structure for a saddle-type vehicle according to claim 6, wherein a front fender that covers an upper portion of a front wheel is disposed forward of the skid plate, andthe front fender is of a shape substantially along an outer profile of the front wheel, anda lower end portion of the front fender is oriented toward the mesh member for guiding the ram air toward the mesh member. 9. The cooling structure for a saddle-type vehicle according to claim 6, wherein a down frame that extends substantially downward from the head pipe is disposed below the main frame,the down frame comprises a branched area where the down frame is branched into left and right portions in a vicinity of an upper edge of the mesh member, andthe exhaust pipe extends forward from the engine so as to pass between the left and right portions of the down frame below the branched area. 10. The cooling structure for a saddle-type vehicle according to claim 1, wherein a front fender that covers an upper portion of a front wheel is disposed forward of the skid plate, andthe front fender is of a shape substantially along an outer profile of the front wheel, anda lower end portion of the front fender is oriented toward the mesh member for guiding the ram air toward the mesh member. 11. The cooling structure for a saddle-type vehicle according to claim 10, wherein a down frame that extends substantially downward from the head pipe is disposed below the main frame,the down frame comprises a branched area where the down frame is branched into left and right portions in a vicinity of an upper edge of the mesh member, andthe exhaust pipe extends forward from the engine so as to pass between the left and right portions of the down frame below the branched area. 12. The cooling structure for a saddle-type vehicle according to claim 10, wherein radiators are disposed in the cavities upwardly of the skid plate,each of the radiators are inclined such that an inner side thereof in the vehicle widthwise direction is positioned rearward of an outer side thereof in the vehicle widthwise direction, andrear surfaces of the cavities are spaced rearward of the radiators and extend along the inclination of the radiators. 13. The cooling structure for a saddle-type vehicle according to claim 1, wherein a down frame that extends substantially downward from the head pipe is disposed below the main frame,the down frame comprises a branched area where the down frame is branched into left and right portions in a vicinity of an upper edge of the mesh member, andthe exhaust pipe extends forward from the engine so as to pass between the left and right portions of the down frame below the branched area. 14. The cooling structure for a saddle-type vehicle according to claim 13, wherein radiators are disposed in the cavities upwardly of the skid plate,each of the radiators are inclined such that an inner side thereof in the vehicle widthwise direction is positioned rearward of an outer side thereof in the vehicle widthwise direction, andrear surfaces of the cavities are spaced rearward of the radiators and extend along the inclination of the radiators.
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이 특허에 인용된 특허 (6)
Naoki Urano JP; Hiroshi Inokawa JP, Cooling device for motorcycle.
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