发明名称 |
Spark plug |
摘要 |
A spark plug including a center electrode and a ground electrode having a gap between the center electrode and the ground electrode, the ground electrode has an outer layer which is formed from an Ni-based alloy and a core portion which is covered by the outer layer and formed from a material having a thermal conductivity higher than that of the outer layer. Further, the melting point of the Ni-based alloy forming the outer layer is 1150° C. or more and 1350° C. or less. |
申请公布号 |
US8664842(B2) |
申请公布日期 |
2014.03.04 |
申请号 |
US201113515627 |
申请日期 |
2011.01.11 |
申请人 |
TANAKA TOMOO;SHIBATA TSUTOMU;YOSHIMOTO OSAMU;KIKAI TAKAAKI;KUNO TAKEHITO;NUNOME KENJI;NGK SPARK PLUG CO., LTD. |
发明人 |
TANAKA TOMOO;SHIBATA TSUTOMU;YOSHIMOTO OSAMU;KIKAI TAKAAKI;KUNO TAKEHITO;NUNOME KENJI |
分类号 |
H01T13/20;H01T1/22;H01T13/32;H01T13/39 |
主分类号 |
H01T13/20 |
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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