公开(公告)号：US09283615B2

公开(公告)日：2016-03-15

申请号：US14369089

申请日：2011-12-27

申请人： Hideto Kuriyama ,  Katsunori Osabe ,  Hiroyuki Akutagawa ,  Kenichi Ikei ,  Hiroaki Takamune ,  Yuki Shimizu

发明人： Hideto Kuriyama ,  Katsunori Osabe ,  Hiroyuki Akutagawa ,  Kenichi Ikei ,  Hiroaki Takamune ,  Yuki Shimizu

IPC分类号： B21K1/22 ,  F01L3/00 ,  B21C23/18

CPC分类号： B21K1/22 ,  B21C23/183 ,  F01L3/00 ,  F01L2103/00 ,  F01L2103/01

摘要： An engine valve forging system includes a molding forging die having a circular hole stem molding portion continued to a tip end of a head type molding portion, to mold an engine valve by extrusion-forging a material from the head type molding portion to the stem molding portion by an upper die, and a stem guide forging die which is coaxially disposed to communicate with a tip end of the stem molding portion, and has a guide portion for a stem portion of an engine valve extruded from the stem molding portion, and a plurality of stem curve restraining portions having a shape gradually tapering toward a central shaft line from a rear end portion to a tip end portion are formed continuously along the central shaft line of the guide portion in the guide portion, to be capable of manufacturing high-precision engine valves with less stem curve.

摘要翻译： 发动机阀锻造系统包括具有连续到头部成型部分的末端的圆形孔杆模制部分的模制锻模，通过将材料从头部成型部分挤出锻造到杆模制来模制发动机气门 以及杆引导锻模，其同轴地设置成与杆模制部分的末端连通，并且具有用于从杆模部分挤出的发动机气门的杆部分的引导部分，和 沿引导部的引导部的中心轴线连续地形成有从后端部到前端部朝向中心轴线逐渐变细的形状的多个杆曲线限制部， 精密发动机阀门具有较少的阀杆曲线。

公开(公告)号：US20140345354A1

公开(公告)日：2014-11-27

申请号：US14369089

申请日：2011-12-27

申请人： Hideto Kuriyama ,  Katsunori Osabe ,  Hiroyuki Akutagawa ,  Kenichi Ikei ,  Hiroaki Takamune ,  Yuki Shimizu

发明人： Hideto Kuriyama ,  Katsunori Osabe ,  Hiroyuki Akutagawa ,  Kenichi Ikei ,  Hiroaki Takamune ,  Yuki Shimizu

IPC分类号： B21K1/22

CPC分类号： B21K1/22 ,  B21C23/183 ,  F01L3/00 ,  F01L2103/00 ,  F01L2103/01

摘要： An engine valve forging system includes a molding forging die having a circular hole stem molding portion continued to a tip end of a head type molding portion, to mold an engine valve by extrusion-forging a material from the head type molding portion to the stem molding portion by an upper die, and a stem guide forging die which is coaxially disposed to communicate with a tip end of the stem molding portion, and has a guide portion for a stem portion of an engine valve extruded from the stem molding portion, and a plurality of stem curve restraining portions having a shape gradually tapering toward a central shaft line from a rear end portion to a tip end portion are formed continuously along the central shaft line of the guide portion in the guide portion, to be capable of manufacturing high-precision engine valves with less stem curve.

摘要翻译： 发动机阀锻造系统包括具有连续到头部成型部分的末端的圆形孔杆模制部分的模制锻模，通过将材料从头部成型部分挤出锻造到杆模制来模制发动机气门 以及杆引导锻模，其同轴地设置成与杆模制部分的末端连通，并且具有用于从杆模部分挤出的发动机气门的杆部分的引导部分，和 沿引导部的引导部的中心轴线连续地形成有从后端部到前端部朝向中心轴线逐渐变细的形状的多个杆曲线限制部， 精密发动机阀门具有较少的阀杆曲线。