Spark plug with an improved separation resistance of a noble metal tip

A spark plug where a predetermined cross section of a noble metal tip is divided by a vertical line into two half cross sections having a first half cross section and a second half cross section. The first half cross section satisfies h1/t 0.2 and Rw1/Rt1 1.03, and the second half cross section sati...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: YOSHIZAKI HIROTOSHI, IGARASHI TOMOYUKI
Format: Patent
Sprache:eng
Schlagworte:
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