Ruthenium-based electrode material for a spark plu

专利名称：Ruthenium-based electrode material for a

spark plug

发明人：Shuwei Ma申请号：US13342709申请日：20120103公开号：US08471451B2公开日：20130625

专利附图：

摘要：A ruthenium-based electrode material for use with a spark plug. The electrodematerial comprises ruthenium (Ru) and a precious metal. The ruthenium (Ru) is the singlelargest constituent of the electrode material on a wt % basis. The electrode material may

have a density that is less than or equal to about 15.5 g/cmand may include at least oneother precious metal. The electrode material may be used in a spark plug that includes ametallic shell having an axial bore, an insulator having an axial bore and at least partiallydisposed within the axial bore of the metallic shell, a center electrode at least partiallydisposed within the axial bore of the insulator, and a ground electrode attached to a freeend of the metallic shell. The center electrode, the ground electrode or both may beformed at least in part from the electrode alloy.

申请人：Shuwei Ma

地址：Ann Arbor MI US

国籍：US

代理机构：Reising Ethington P.C.

更多信息请下载全文后查看