发明申请
- 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
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申请号： US10983260申请日： 2004-11-08
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公开(公告)号： US20050120556A1公开(公告)日： 2005-06-09
- 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 Kariya-city
- 专利权人： DENSO CORPORATION
- 当前专利权人： DENSO CORPORATION
- 当前专利权人地址： JP Kariya-city
- 优先权： JP2003-379089 20031107
- 主分类号： B22D17/00
- IPC分类号： B22D17/00 ; B29C45/00 ; B29C45/14 ; B29C45/26 ; B29C45/27 ; B29L31/00 ; F02D9/10 ; F16K1/22 ; B21K1/20
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.
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