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出願の表示

1. IN2701/DELNP/2012 - SPARK PLUG

官庁 インド
出願番号 2701/DELNP/2012
出願日 28.03.2012
公開番号 2701/DELNP/2012
公開日 30.05.2014
特許番号 308651
特許付与日 06.03.2019
公報種別 B
IPC
H01T 13/39
H電気
01基本的電気素子
Tスパークギャップ;スパークギャップを用いる過電圧避雷器;スパークプラグ;コロナ放電装置;密閉されない気体中へ導入されるイオンの発生
13スパークプラグ
20電極または絶縁体の形状に特徴のあるもの
39電極のための材料の選択
出願人 NGK SPARK PLUG CO.LTD.
発明者 SHIBATA Tsutomu
KUNO Takehito
TANAKA Tomo o
NUNOME Kenji
NAGATOMO Shoichiro
優先権情報 2009292950 24.12.2009 JP
発明の名称
(EN) SPARK PLUG
要約
(EN)
Disclosed is a spark plug which comprises a center electrode and/or a ground electrode that is capable of suppressing generation of an emergent corrosive material while maintaining high thermal conductivity and high strength. Specifically disclosed is a spark plug which comprises a center electrode and a ground electrode that is arranged at a distance from the center electrode and wherein the center electrode and/or the ground electrode is formed from an electrode material that contains not less than 96% by mass of Ni. The spark plug is characterized in that the electrode material contains at least one element selected from the group consisting of Y and rare earth elements in an amount of 0.05 0.45% by mass (inclusive) in total Mn in an amount of 0.05% by mass or more and at least one element selected from the group consisting of Ti V and Nb in an amount of 0.01% by mass or more while having a ratio of the total content (a) of Ti V and Nb to the Mn content (b) namely a/b of 0.02 0.40 (inclusive).