Title:
ELECTRODE MATERIAL FOR USE WITH A SPARK PLUG
Document Type and Number:
WIPO Patent Application WO/2012/016072
Kind Code:
A3
Abstract:
A spark plug (10) for an internal combustion engine has a center electrode (12), a ground electrode (18) or both that includes an electrode material that is a Pt-based alloy. The electrode material may include platinum (Pt), at least one active element like aluminum (Al) or silicon (Si), and at least one high-melting point element such as ruthenium (Ru), iridium (Ir), tungsten (W), molybdenum (Mo), rhenium (Re), tantalum (Ta), niobium (Nb), chromium (Cr), or a combination thereof. In at least some of the disclosed alloys, the aluminum (Al) and/or silicon (Si) contributes to the formation of a thin protective oxide layer on a surface of the electrode material.
Inventors:
MA SHUWEI (US)
Application Number:
PCT/US2011/045767
Publication Date:
July 12, 2012
Filing Date:
July 28, 2011
Export Citation:
Assignee:
FEDERAL MOGUL IGNITION CO (US)
MA SHUWEI (US)
MA SHUWEI (US)
International Classes:
H01T13/39; F02P13/00; H01T13/20
Foreign References:
| US20050168121A1 | 2005-08-04 | |||
| US20070236123A1 | 2007-10-11 | |||
| US5514929A | 1996-05-07 | |||
| US6045424A | 2000-04-04 |
Other References:
See also references of EP 2599172A4
Attorney, Agent or Firm:
STEVENS, James, D. et al. (P.O. Box 4390Troy, MI, US)
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