SPARK PLUG

This invention provides a spark plug featuring good durability to solve a problem. The spark plug includes a tip provided on at least one of a center electrode and a ground electrode. The spark plug is achieved by reducing oxidative consumption without an influence from oxygen concentration under an...

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Bibliographic Details
Main Authors YOSHIMOTO, Osamu, KANEMARU, Tomonori, SUMOYAMA, Daisuke
Format Patent
LanguageEnglish
French
German
Published 22.07.2020
Subjects
BASIC ELECTRIC ELEMENTS
CORONA DEVICES
ELECTRICITY
GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
OVERVOLTAGE ARRESTERS USING SPARK GAPS
SPARK GAPS
SPARKING PLUGS
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Summary:This invention provides a spark plug featuring good durability to solve a problem. The spark plug includes a tip provided on at least one of a center electrode and a ground electrode. The spark plug is achieved by reducing oxidative consumption without an influence from oxygen concentration under an environment of this tip being exposed. The spark plug includes a center electrode and a ground electrode disposed providing a gap with the center electrode. At least one of the center electrode and the ground electrode includes a tip forming the gap. The tip has a main constituent of Ir. The tip contains Rh of 7 mass% or more to 31 mass% or less, Ru of 5 mass% or more to 20 mass% or less, and Pt of one-twentieth or more to one-half or less of a Ru content.
Bibliography:Application Number: EP20140859868