公开(公告)号：US20090121442A1

公开(公告)日：2009-05-14

申请号：US12094453

申请日：2006-11-27

申请人： Yasufumi Uozumi ,  Eiji Mochizuki

发明人： Yasufumi Uozumi ,  Eiji Mochizuki

IPC分类号： F16J15/34 ,  B26F1/40 ,  F02M61/16

CPC分类号： B21D53/20 ,  F02M47/027 ,  F02M55/005 ,  F02M61/168 ,  F02M2200/8053 ,  F02M2200/8061 ,  F02M2200/8069 ,  F02M2547/003 ,  Y10T83/0481

摘要： To provide: a method of manufacturing a ring-shaped member that can efficiently manufacture a stronger backup ring that reinforces a seal member disposed in a pressure introduction chamber of a fuel injection valve; the backup ring; and a seal structure for a fuel injection valve disposed with the backup ring.A method of manufacturing a ring-shaped member that is manufactured by subjecting a rigid flat-shaped base material to burring includes: a step of forming a prepared hole with respect to the base material; a step of pressing an edge portion of the prepared hole to thereby bend the edge portion using a first punch member that has a diameter that is larger than the diameter of the prepared hole and is tapered towards its distal end portion; and a step of forming a flange portion by press-inserting, with respect to the prepared hole whose edge portion has been bent, a second punch member that has a diameter that is smaller than the diameter of the first punch member and is tapered towards its distal end portion.

摘要翻译： 提供一种制造环形构件的方法，所述环形构件可以有效地制造强化用于加强设置在燃料喷射阀的压力导入室中的密封构件的较强的支撑环; 备用环; 以及配置有备用环的燃料喷射阀的密封结构。 通过对刚性扁平状基材进行毛边加工而制造的环状构件的制造方法包括：相对于基材形成预定孔的工序; 使用直径比准备好的孔的直径大的第一冲头构件使其朝向其前端部逐渐变细的步骤，从而使边缘部分弯曲， 以及通过相对于其边缘部分已被弯曲的预制孔而通过压入而形成凸缘部的步骤，第二冲头构件的直径小于第一冲头构件的直径，并且朝向其逐渐变细 远端部分。