Patent · US Active

Spark plug electrode and method of manufacturing the same

US11870222B2 · kind B2 · utility

0Cited by

16References

14Claims

0Family size

Assignee

FEDERAL-MOGUL IGNITION GMBH · US

Inventors

Werner Niessner · Steinheim, DE
Daniel Konig · Gerabronn, DE

Key dates

Filing date	May 4, 2022
Grant date	Jan 9, 2024
Priority date	—
Expiry date	May 4, 2042

Classification

Technology area (CPC H)Electricity
CPC primaryH01T21/02
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A spark plug electrode with an electrode tip formed on an electrode base using an additive manufacturing process, such as a powder bed fusion technique. The spark plug electrode includes an intermediate layer located between the electrode tip and the electrode base, where the intermediate layer has a coefficient of thermal expansion (CTE) that is between that of the electrode base and the electrode tip and includes a whole area connection. In some examples, the whole area connection is non-uniform in thickness so that it is thicker in one section than it is in another section.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.