Spark ignition device for an internal combustion engine and...

Details Spark ignition device for an internal combustion engine and... Spark ignition device for an internal combustion engine and...

2011-06-28

2011-06-28

Santiago, Mariceli (Department: 2879)

Electric lamp and discharge devices

Spark plugs

Particular electrode structure or spacing

C313S143000

Reexamination Certificate

active

07969078

ABSTRACT:
A spark ignition device is provided having an electrode sparking tip constructed from an AuPd alloy with the addition of at least 3 wt. % of a precious metal element selected from at least one of platinum, iridium, rhodium and ruthenium. The gold counteracts oxidation of the palladium and the additional elements provide the sparking tip with high temperature and high strength mechanical properties and resistance to alloying with the combustion constituents during use.

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