发明授权
- 专利标题: Ignition coil for internal combustion engine
- 专利标题(中): 内燃机点火线圈
-
申请号: US09456546申请日: 1999-12-08
-
公开(公告)号: US06191674B1公开(公告)日: 2001-02-20
- 发明人: Norihiro Adachi , Yoshihiro Shimoide , Kazutoyo Osuka , Kazuhide Kawai
- 申请人: Norihiro Adachi , Yoshihiro Shimoide , Kazutoyo Osuka , Kazuhide Kawai
- 优先权: JP10-354084 19981214
- 主分类号: H01F2702
- IPC分类号: H01F2702
摘要:
An ignition coil that can be easily assembled, that assures co-axial alignment of a primary coil, a secondary coil and a center core part, and that generates desired high voltage. A core body is formed to have an outer diameter larger than that of a permanent magnet so that the permanent magnet will not protrude out of the outer peripheral face of the core body. Accordingly, when the center core part is inserted into a secondary spool, the center core part is not caught by the secondary spool and may be readily inserted and assembled therewith. Also, because no bulge is created at the center core part, it is possible to prevent the center core part from tilting within the secondary spool and to readily assure the co-axial alignment of the primary spool, the secondary spool and the center core part. Thus, voltage generated by the secondary coil is prevented from dropping, and high voltage may be applied to the ignition plug.