发明名称 |
Spark plug for internal combustion engine and method of manufacturing the same |
摘要 |
<p>A spark plug having a center electrode ; an insulator having an axial hole extending in the direction of an axis ; a metallic shell ; a ground electrode extending from a front end portion of the metallic shell ; a center-electrode-side noble metal chip joined to a distal end surface of the center electrode ; and a ground-electrode-side noble metal chip joined to a distal end surface of the ground electrode, the ground-electrode-side noble metal chip having a distal end surface facing toward a side surface portion of the center-electrode-side noble metal chip, and the ground electrode being bent at an angle that falls within a range of 120° to 140° inclusive.</p> |
申请公布号 |
EP2131462(B1) |
申请公布日期 |
2013.11.20 |
申请号 |
EP20090161631 |
申请日期 |
2009.06.02 |
申请人 |
NGK SPARK PLUG CO., LTD. |
发明人 |
NUNOME, KENJI;SATO, YOSHIKUNI |
分类号 |
H01T13/39;H01T21/02 |
主分类号 |
H01T13/39 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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