Invention Grant
- Patent Title: Ignition coil device for internal combustion engine
- Patent Title (中): 内燃机点火线圈装置
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Application No.: US11597426Application Date: 2005-07-28
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Publication No.: US07789078B2Publication Date: 2010-09-07
- Inventor: Yoichi Anzo , Makio Takahashi , Takanobu Kobayashi
- Applicant: Yoichi Anzo , Makio Takahashi , Takanobu Kobayashi
- Applicant Address: JP Tokyo
- Assignee: Hitachi, Ltd.
- Current Assignee: Hitachi, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Crowell & Moring LLP
- Priority: JP2004-220353 20040728; JP2005-091277 20050328
- International Application: PCT/JP2005/013836 WO 20050728
- International Announcement: WO2006/011552 WO 20060202
- Main IPC: H01F38/12
- IPC: H01F38/12 ; F02P11/00 ; H01T13/08
Abstract:
An internal combustion engine ignition coil device has an annular seal rubber at its lower side coil. An annular projection is provided on a part of the seal rubber and is pressed against the inner diameter surface of a plug hole. An air path is formed in part of a coil case by mounting the seal rubber into a groove, enabling inside and outside portions of the plug hole to communicate. A gas-permeable thin film resin member is bonded to an inlet of the air path.
Public/Granted literature
- US20080029074A1 Ignition Coil Device for Internal Combustion Engine Public/Granted day:2008-02-07
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