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公开(公告)号：EP3502449B1
公开(公告)日：2020-10-28
申请号：EP18211449.6
申请日：2018-12-10
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公开(公告)号：EP2505796B1
公开(公告)日：2014-10-22
申请号：EP12157151.7
申请日：2012-02-27
发明人： YOSHIHARA, Akira , KIDO, Yusuke , HASEGAWA, Takeshi , MURATA, Mitsuhiko , UMEMURA, Toshiaki , HONGO, Fuminobu
CPC分类号： F01L1/047 , F01L1/08 , F01L2105/00 , F16H53/025
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公开(公告)号：EP2505796A3
公开(公告)日：2013-02-06
申请号：EP12157151.7
申请日：2012-02-27
发明人： YOSHIHARA, Akira , KIDO, Yusuke , HASEGAWA, Takeshi , MURATA, Mitsuhiko , UMEMURA, Toshiaki , HONGO, Fuminobu
CPC分类号： F01L1/047 , F01L1/08 , F01L2105/00 , F16H53/025
摘要： A cam structure includes a camshaft and a cam lobe. The cam lobe includes a base cam and a roller which is provided at a distal end portion of a valve lifting portion. A first plus peak of acceleration of a valve is caused on starting a valve lift, a second plus peak is caused on finishing the valve lift, and the acceleration of the valve becomes minus between the first peak and the second peak. An outside diameter and mounting position of the roller are set so that a follower portion of a valve mechanism rides on to the roller from the valve lifting portion at a side of the starting of the valve lift and rides on to the valve lifting portion from the roller at a side of the finishing of the valve lift between the first and second peaks.
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公开(公告)号：EP3502449A1
公开(公告)日：2019-06-26
申请号：EP18211449.6
申请日：2018-12-10
摘要： In an intake structure of an internal combustion engine (10), on an intake upstream side from a valve seat (32) of an intake port (22), a convex portion (36) is provided which protrudes to an inside of the intake port (22) in a place near an outer circumferential portion of a cylinder chamber (12) when viewed from an upper side of the cylinder chamber (12). The convex portion (36) includes an upstream guide surface (3602) extending from an apex (3610) of the convex portion (36) to the intake upstream side, and a downstream guide surface (3604) extending from the apex (3610) to an intake downstream side and including a curved surface recessed inside the convex portion (36) at a middle portion thereof.
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公开(公告)号：EP3232041A1
公开(公告)日：2017-10-18
申请号：EP17162037.0
申请日：2017-03-21
摘要： A cylinder head (1) containing an exhaust system manifold (6) for an engine (10) includes screw holes (20) formed through a fastening face (15A) of the cylinder head (1) and an exhaust pipe, and outlet cooling channels (4C, 4D) that are provided adjacent to an outlet (6B) of a confluence (6A) of the manifold (6), and are disposed between the screw holes (20) and the outlet (6B). Coolant flows through the outlet cooling channels (4C, 4D).
摘要翻译： 包含用于发动机（10）的排气系统歧管（6）的气缸盖（1）包括穿过气缸盖（1）的紧固面（15A）和排气管形成的螺纹孔（20），以及排气冷却通道 （6）的汇合部（6A）的出口（6B）附近设置的螺旋孔（4C，4D），配置在螺纹孔（20）与出口（6B）之间。 冷却液流过出口冷却通道（4C，4D）。
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公开(公告)号：EP2505796A2
公开(公告)日：2012-10-03
申请号：EP12157151.7
申请日：2012-02-27
发明人： YOSHIHARA, Akira , KIDO, Yusuke , HASEGAWA, Takeshi , MURATA, Mitsuhiko , UMEMURA, Toshiaki , HONGO, Fuminobu
CPC分类号： F01L1/047 , F01L1/08 , F01L2105/00 , F16H53/025
摘要： A cam structure includes a camshaft and a cam lobe. The cam lobe includes a base cam and a roller which is provided at a distal end portion of a valve lifting portion. A first plus peak of acceleration of a valve is caused on starting a valve lift, a second plus peak is caused on finishing the valve lift, and the acceleration of the valve becomes minus between the first peak and the second peak. An outside diameter and mounting position of the roller are set so that a follower portion of a valve mechanism rides on to the roller from the valve lifting portion at a side of the starting of the valve lift and rides on to the valve lifting portion from the roller at a side of the finishing of the valve lift between the first and second peaks.
摘要翻译： 凸轮结构包括凸轮轴和凸轮凸角。 凸轮凸角包括底座凸轮和设置在阀提升部分的远端部分的辊。 在启动气门升程时会引起阀门加速度的第一加峰值，在完成气门升程时会引起第二加峰，阀门的加速度在第一峰值与第二峰值之间变为负值。 辊的外径和安装位置被设定为使得阀机构的从动部分在阀升程开始的一侧从气门提升部分向上滚动，并且从阀提升部分 辊子在第一和第二峰值之间的气门升程的完成的一侧。
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