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公开(公告)号：US07905216B2
公开(公告)日：2011-03-15
申请号：US12444067
申请日：2007-02-23
申请人： Yozo Kutsukake , Ryomei Yawata , Kenichi Kubo , Shogo Yarita , Kiyoshi Tateda
发明人： Yozo Kutsukake , Ryomei Yawata , Kenichi Kubo , Shogo Yarita , Kiyoshi Tateda
CPC分类号： F02M55/025 , F02M2200/8069 , F16L41/03
摘要： To provide a common rail that can prevent stress concentration from arising locally with respect to intersecting portions between a flow path and branching paths and can prevent damage such as cracks.A common rail that is used in a fuel injection system of an internal combustion engine comprises: a rail body portion that includes inside of itself a flow path along an axial direction; and branching pipe portions that are arrayed along the axial direction of the rail body portion, project from and are molded integrally with the rail body portion, and each of which includes inside of itself a branching path that branches from the flow path, wherein edges of inlets of the branching paths at intersecting portions between the flow path and the branching paths are chamfered, and, of the edges, the radius of curvature of the edges in the axial direction of the rail body portion is larger than the radius of curvature of the edges in a direction orthogonal to the axial direction of the rail body portion.
摘要翻译： 为了提供能够防止在流路和分支路径之间相对于交叉部分局部产生应力集中的共轨，并且可以防止诸如裂纹的损伤。 在内燃机的燃料喷射系统中使用的共轨包括：轨道本体部，其在内侧具有沿轴向的流路; 沿着轨道主体部的轴向排列的分支管部从轨道体部伸出并与轨道体部成一体，并且在其自身内部具有从流路分支的分支路径， 在流路和分支路径之间的相交部分处的分支路径的入口被倒角，并且在边缘中，轨道体部分的轴向方向上的边缘的曲率半径大于轨道主体部分的曲率半径 在与轨道主体部分的轴向正交的方向上的边缘。
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公开(公告)号：US20100108036A1
公开(公告)日：2010-05-06
申请号：US12444067
申请日：2007-02-23
申请人： Yozo Kutsukake , Ryomei Yawata , Kenichi Kubo , Shogo Yarita , Kiyoshi Tateda
发明人： Yozo Kutsukake , Ryomei Yawata , Kenichi Kubo , Shogo Yarita , Kiyoshi Tateda
CPC分类号： F02M55/025 , F02M2200/8069 , F16L41/03
摘要： To provide a common rail that can prevent stress concentration from arising locally with respect to intersecting portions between a flow path and branching paths and can prevent damage such as cracks.A common rail that is used in a fuel injection system of an internal combustion engine comprises: a rail body portion that includes inside of itself a flow path along an axial direction; and branching pipe portions that are arrayed along the axial direction of the rail body portion, project from and are molded integrally with the rail body portion, and each of which includes inside of itself a branching path that branches from the flow path, wherein edges of inlets of the branching paths at intersecting portions between the flow path and the branching paths are chamfered, and, of the edges, the radius of curvature of the edges in the axial direction of the rail body portion is larger than the radius of curvature of the edges in a direction orthogonal to the axial direction of the rail body portion.
摘要翻译： 为了提供能够防止在流路和分支路径之间相对于交叉部分局部产生应力集中的共轨，并且可以防止诸如裂纹的损伤。 在内燃机的燃料喷射系统中使用的共轨包括：轨道本体部，其在内侧具有沿轴向的流路; 沿着轨道主体部的轴向排列的分支管部从轨道体部伸出并与轨道体部成一体，并且在其自身内部具有从流路分支的分支路径， 在流路和分支路径之间的相交部分处的分支路径的入口被倒角，并且在边缘中，轨道体部分的轴向方向上的边缘的曲率半径大于轨道主体部分的曲率半径 在与轨道主体部分的轴向正交的方向上的边缘。
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