发明申请
- 专利标题： SPARK PLUG FOR INTERNAL COMBUSTION ENGINE
- 专利标题（中）： 火花塞用于内燃机
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申请号： US13138392申请日： 2010-02-03
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公开(公告)号： US20110298353A1公开(公告)日： 2011-12-08
- 发明人: Mai Nakamura , Akira Suzuki
- 申请人： Mai Nakamura , Akira Suzuki
- 优先权： JP2009-033533 20090217
- 国际申请： PCT/JP2010/000628 WO 20100203
- 主分类号： H01T13/36
- IPC分类号： H01T13/36
摘要：
A spark plug comprised of an insulator having a stepped portion on an outer circumferential portion thereof, the stepped portion tapering frontward in the direction of the axis of the spark plug, an annular sheet packing and a metallic shell having a taper portion provided on an inner circumferential portion thereof and tapering frontward in the direction of the axis of the spark plug, the metallic shell holding the insulator through a rear end portion thereof being crimped, the stepped portion being seated on the taper portion via the sheet packing, and the taper portion having a groove therein.
公开/授权文献
- US08536771B2 Surface for supporting a sheet packing in a spark plug 公开/授权日：2013-09-17
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