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    INTERNAL COMBUSTION ENGINE
    3.
    发明公开
    INTERNAL COMBUSTION ENGINE 审中-公开
    内燃机

    公开(公告)号：EP2074291A2

    公开(公告)日：2009-07-01

    申请号：EP07825226.9

    申请日：2007-10-01

    申请人： Toyota Jidosha Kabushiki Kaisha

    发明人： AMANO, Takashi

    IPC分类号： F01L3/20 ,  F02B31/04 ,  F02F1/42 ,  F02F1/24

    CPC分类号： F02F1/4214 ,  F01L3/06 ,  F01L3/20 ,  F01L2003/251 ,  F01L2003/255 ,  F01L2003/256 ,  F01L2820/01 ,  F02B31/04 ,  F02B2275/48 ,  F02F2001/244 ,  Y02T10/125 ,  Y02T10/146

    摘要： When viewed from the upper face of a cylinder head (52A) in which an intake port (10A) communicating with a combustion chamber (54) of an internal combustion engine (50A) is formed, a starting point (Pl) of the port (10A) is defined as a point of intersection of the streamline of the intake port (10A) and an inlet-side opening plane of the intake port (10A) as projected on a horizontal plane (S), and an end point (P2) is defined as a point of intersection of the streamline of the port (10A) and the center -axis of an intake valve (55) as projected on the horizontal plane (S). The starting point (Pl) is located closer to the center of the chamber (54) than a straight line (L2) that contains the end point (P2) and extends in a direction orthogonal to the axis of the crankshaft on the plane (S), and the streamline (F) of the port (10A) projected on the horizontal plane (S) is curved toward the center of the chamber (54), with respect to a straight line (L1) that contains the starting point (P1) and extends in a direction orthogonal to the axis of the crankshaft on the plane (S).

    摘要翻译： 当从形成有与内燃机（50A）的燃烧室（54）连通的进气口（10A）的气缸盖（52A）的上表面看时，端口（P1）的起点（P1） 10A）定义为在水平面（S）上投影的进气口（10A）的流线和进气口（10A）的入口侧开口平面的交点和终点（P2） 被定义为投影在水平面（S）上的端口（10A）的流线与进气阀（55）的中心轴的交点。 起点（P1）比包含终点（P2）的直线（L2）更靠近腔室（54）的中心，并且在与平面上的曲轴轴线正交的方向上延伸（S ），并且相对于包含起始点（P1）的直线（L1），投影在水平面（S）上的端口（10A）的流线（F）朝向腔室（54）的中心弯曲 ）并且在与平面（S）上的曲轴的轴线正交的方向上延伸。