SPARK PLUG

专利名称：SPARK PLUG

发明人：Tsutomu Shibata,Tomo-o Tanaka,Daisuke

Sumoyama,Takaaki Kikai

申请号：US13638641申请日：20110118

公开号：US20130026903A1公开日：20130131

专利附图：

摘要：An electrode tip located at an distal end of an electrode of a spark plugcomprises Pd as a predominant component in an amount of 40 wt. % or more; at leastone element of Ir, Ni, Co, and Fe, wherein, when the tip contains Ir, the amount of Ir is 0.5

wt. % to 20 wt. %, and when the tip contains at least one element of Ni, Co, and Fe, theamount of the at least one element is 0.5 wt. % to 40 wt. %; and at least one element ofPt, Re, Rh, and Ru in a total amount of 5 wt. % to 40 wt. %, wherein when the tip containsat least one element of Re, Rh, and Ru, the amount of the at least one element is 10 wt.% or less, and when the tip contains Pt, the amount of Pt is 16 wt. % to 40 wt. %. Theelectrode tip, which comprises Pd as the main component, has improved resistance tospark-caused wear and reduced occurrence of separation and cracking of the tip.

申请人：Tsutomu Shibata,Tomo-o Tanaka,Daisuke Sumoyama,Takaaki Kikai

地址：Owariasahi JP,Kitanagoya JP,Nagoya JP,Ama JP

国籍：JP,JP,JP,JP

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