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公开(公告)号：EP3499000A1
公开(公告)日：2019-06-19
申请号：EP17839373.2
申请日：2017-08-04
发明人： KOBAYASHI, Tomokazu , YAMANISHI, Teruhide , TOMIZAWA, Kengo , MATSUSHITA, Koichiro , ISHIMATSU, Naoya , KITADA, Yoshihiro
摘要： Provided is an air-cooled internal combustion engine capable of thoroughly cooling a cylinder block and a cylinder head and capable of particularly efficiently cooling an extension portion of an exhaust pipe extending from the cylinder head where heat generation is intense. In the air-cooled internal combustion engine, a centrifugal cooling fan 56 is secured to one end of a crankshaft 21, and a cylinder block 23 and a cylinder head 24 are surrounded by a shroud 70. In the internal combustion engine, an exhaust-side cylinder side surface 23D of the cylinder block 23 is formed with a plurality of air-guiding cooling fins 82 arranged in parallel, with air-guiding grooves 83 formed between adjacent ones of the air-guiding cooling fins 82, the air-guiding grooves 83 each have a structure in which an inlet port 83i is opened in the direction toward a fan-side side edge 23Dr of the exhaust-side cylinder side surface 23D, while an outlet port 83e is opened in the direction toward the exhaust-side head side surface 24D, and each of the air-guiding grooves 83 communicates from the inlet port 83i to the outlet port 83e.
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公开(公告)号：EP2474723B1
公开(公告)日：2018-08-22
申请号：EP09848977.6
申请日：2009-09-03
CPC分类号： F01P11/10 , B60K11/04 , B60K11/08 , B60Y2200/12 , B60Y2200/126 , B62K2202/00 , F01P3/18 , F01P2050/16 , F02B61/02
摘要： Disclosed is a radiator cooling structure for cooling a radiator 67 of a water-cooled power unit mounted on a small vehicle and disposed on a laterally outer side of the small vehicle, which radiator cooling structure improves the efficiency of cooling an internal combustion engine 16 by using a head wind. The radiator 67 is provided with a radiator cover 68 having a louver 69 for guiding cooling air to the radiator 67. The louver 69 is formed such that a rear part thereof is more protruded laterally outward than a front part thereof. The louver 69 of the radiator cover 68 has parallel slats 69a tilting forward, and a lower body cover 13A is provided with a cooling air intake opening 70 capable of guiding a head wind toward the louver 69 positioned obliquely above and rearward of the cooling air intake opening 70.
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3.发明公开COOLING AIR INTAKE STRUCTURE FOR V-BELT TYPE STEPLESS TRANSMISSION 有权KÜHLENDELUFTEINLASSSTRUKTURFÜRSTUFENLOSES KEILRIEMENGETRIEBE
公开(公告)号：EP2474435A1
公开(公告)日：2012-07-11
申请号：EP09848976.8
申请日：2009-09-03
CPC分类号： F16H57/0489 , B60K11/08 , B60K17/08 , B60Y2200/12 , B60Y2200/126 , F16H57/035 , F16H57/0416 , F16H2057/0203 , F16H2057/02065
摘要： Disclosed is a cooling air intake structure for a V-belt drive continuously variable transmission 18, which is disposed beside the rear wheel of a small vehicle and which does not permit muddy water and dust to enter therein. A cooling air inlet 71 through which cooling air is taken in is formed at a position beside a transmission case 37 and above a cooling fan side opening 52 formed in the transmission case 37 opposite to a drive pulley 40. A cooling air passage 70 extending from the cooling air inlet 71 to the side opening 52 is formed so as to surround the side opening 52. Cooling air taken in through the cooling air inlet 71 is guided so as to flow upward first and then flows downward along a U-shaped cooling air passage 74 to the side opening 52 of the transmission case 37 beside the cooling fan.
摘要翻译： 公开了一种用于V型皮带驱动无级变速器18的冷却空气进气结构，其设置在小型车辆的后轮旁边，并且不允许泥水和灰尘进入其中。 在变速器壳体37的旁边，形成在与变速箱37相对的驱动带轮40上形成的冷却风扇侧开口部52的上方，形成有冷空气导入的冷却空气入口71。 侧面开口52的冷却风入口71形成为围绕侧开口52.冷却空气入口71所吸入的冷却空气被引导，首先向上流动，然后沿U形冷却空气向下流动 通道74到冷却风扇旁边的变速箱37的侧开口52。
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公开(公告)号：EP2474435B1
公开(公告)日：2015-09-16
申请号：EP09848976.8
申请日：2009-09-03
CPC分类号： F16H57/0489 , B60K11/08 , B60K17/08 , B60Y2200/12 , B60Y2200/126 , F16H57/035 , F16H57/0416 , F16H2057/0203 , F16H2057/02065
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5.发明公开COOLING STRUCTURE FOR RADIATOR FOR WATER-COOLED POWER UNIT 审中-公开KÜHLSTRUKTURFÜREINENKÜHLERFÜREINWASSERGEKÜHLTESSTROMAGGREGAT
公开(公告)号：EP2474723A1
公开(公告)日：2012-07-11
申请号：EP09848977.6
申请日：2009-09-03
CPC分类号： F01P11/10 , B60K11/04 , B60K11/08 , B60Y2200/12 , B60Y2200/126 , B62K2202/00 , F01P3/18 , F01P2050/16 , F02B61/02
摘要： Disclosed is a radiator cooling structure for cooling a radiator 67 of a water-cooled power unit mounted on a small vehicle and disposed on a laterally outer side of the small vehicle, which radiator cooling structure improves the efficiency of cooling an internal combustion engine 16 by using a head wind. The radiator 67 is provided with a radiator cover 68 having a louver 69 for guiding cooling air to the radiator 67. The louver 69 is formed such that a rear part thereof is more protruded laterally outward than a front part thereof. The louver 69 of the radiator cover 68 has parallel slats 69a tilting forward, and a lower body cover 13A is provided with a cooling air intake opening 70 capable of guiding a head wind toward the louver 69 positioned obliquely above and rearward of the cooling air intake opening 70.
摘要翻译： 公开了一种用于冷却安装在小型车辆上并设置在小型车辆的侧向外侧的水冷动力单元的散热器67的散热器冷却结构，该散热器冷却结构提高了内燃机16的冷却效率 用头风。 散热器67设置有散热器盖68，散热器盖68具有用于将冷却空气引导到散热器67的百叶窗69。百叶窗69形成为使得其后部比其前部更侧向外侧突出。 散热器盖68的百叶窗69具有向前倾斜的平行的板条69a，并且下主体盖13A设置有冷却空气进入开口70，该冷却空气入口70能够朝向位于冷却空气入口的上方和后方的百叶窗69引导头部风 开70。
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