发明授权
- 专利标题： Forming method of throttle apparatus for internal combustion engine
- 专利标题（中）： 内燃机节气门装置的成形方法
-
申请号： US10983260申请日： 2004-11-08
-
公开(公告)号： US07107678B2公开(公告)日： 2006-09-19
- 发明人: Tsuyoshi Arai , Naoki Hiraiwa , Masami Goto , Katsuya Torii
- 申请人： Tsuyoshi Arai , Naoki Hiraiwa , Masami Goto , Katsuya Torii
- 申请人地址： JP
- 专利权人： Denso Corporation
- 当前专利权人： Denso Corporation
- 当前专利权人地址： JP
- 代理机构： Nixon & Vanderhye PC
- 优先权： JP2003-379089 20031107
- 主分类号： B21K1/22
- IPC分类号： B21K1/22 ; B21K1/20 ; B29C45/00
摘要：
A throttle valve and the throttle body are formed substantially simultaneously in the same dies. The melted resin is injected in to a cavity through a pair of valve gates. The valve gates are symmetrically located with respect to the throttle valve shaft. A deformation of the throttle valve can be avoided because a stress concentration on the metal shaft of the throttle valve is reduced in opening the dies.
公开/授权文献
信息查询
