Patent · US Active

Spark plug housing including corrosion protection on the inner side and spark plug and manufacturing method

US11437787B2 · kind B2 · utility

0Cited by

1References

8Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Bernhard Gries · Kemmern, DE
Christoph Roland Hoelzl · Kornwestheim, DE
Gabriel Petersen · Bamberg, DE
Herbert Noelscher · Eltmann, DE
Martina Bubrin · Stuttgart, DE
Milan Pilaski · Mannheim, DE
Roland Kraus · Oberkochen, DE
Sabrina Rathgeber · Gerlingen, DE
Tim Bergmann · Hemer, DE
Tina Hirte · Stuttgart, DE

Key dates

Filing date	Mar 2, 2020
Grant date	Sep 6, 2022
Priority date	—
Expiry date	Mar 2, 2040

Classification

Technology area (CPC H)Electricity
CPC primaryH01T13/32
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A spark plug housing. The spark plug housing includes an inner side, an outer side, and a longitudinal axis, which extends from an end of the spark plug housing facing toward the combustion chamber up to an end of the spark plug housing facing away from the combustion chamber. The spark plug housing includes a circumferential shoulder on its inner side, which is designed so that a spark plug insulator rests thereon, and a corrosion protection layer on its inner side, which is formed on a section of the inner side of the spark plug housing, the section extending from the end of the spark plug housing facing toward the combustion chamber to at least over the shoulder and along the inner circumference of the spark plug housing.

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