发明公开
EP0775806A1 Method of forming a tappet in an internal combustion engine
失效
Herstellungsverfahren einesStösselseiner Brennkraftmaschine
- 专利标题： Method of forming a tappet in an internal combustion engine
- 专利标题（中）： Herstellungsverfahren einesStösselseiner Brennkraftmaschine
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申请号： EP95308380.5申请日： 1995-11-22
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公开(公告)号： EP0775806A1公开(公告)日： 1997-05-28
- 发明人: Hirose, Masahito, c/o Fuji Oozx Inc. , Nakamura, Kazufumi, c/o Fuji Oozx Inc.
- 申请人： FUJI OOZX INC.
- 申请人地址： 22-1, Engyo 1-chome Fujisawa-shi, Kanagawa-ken JP
- 专利权人： FUJI OOZX INC.
- 当前专利权人： FUJI OOZX INC.
- 当前专利权人地址： 22-1, Engyo 1-chome Fujisawa-shi, Kanagawa-ken JP
- 代理机构： Ben-Nathan, Laurence Albert
- 主分类号： F01L1/14
- IPC分类号： F01L1/14 ; B22F3/16
摘要：
To manufacture a tappet in an internal combustion engine, a tappet rough body which comprises a cylindrical portion (2) with an upper wall (1) and an annular side wall (6) is moulded by press processing of metal powder, such that the upper wall (1), the cylindrical portion (2) and the annular side wall (6) become larger than the tappet to be manufactured in the axial size. After sintering the tappet rough body, it is re-compressed to form the final tappet.
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