发明授权
- 专利标题： Injection valve and method of making orifice
- 专利标题（中）： 注射阀和制孔方法
-
申请号： US11519115申请日： 2006-09-12
-
公开(公告)号： US07874070B2公开(公告)日： 2011-01-25
- 发明人: Kenichi Gunji , Keiji Kawahara , Shuichi Shimizu , Atsushi Sekine , Masafumi Nakano
- 申请人： Kenichi Gunji , Keiji Kawahara , Shuichi Shimizu , Atsushi Sekine , Masafumi Nakano
- 申请人地址： JP Tokyo
- 专利权人： Hitachi, Ltd.
- 当前专利权人： Hitachi, Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： Crowell & Moring LLP
- 优先权： JP2005-264572 20050913
- 主分类号： B21K1/22
- IPC分类号： B21K1/22
摘要：
An injection valve has a nozzle body, a valve needle positioned in the nozzle body, an actuator for actuating the valve needle, and an orifice plate fixed at an end of the nozzle body. The orifice plate has a valve seat for cooperating with the valve needle and an orifice for injecting a fluid. The orifice plate is provided with a projection having a convex-curved surface on an orifice outlet side of the orifice plate. A flat surface portion is formed in the area of the convex-curved surface, and the outlet of the orifice is located in the flat surface portion.
公开/授权文献
- US20070057093A1 Injection valve and method of making orifice 公开/授权日：2007-03-15
信息查询
