Patent · US Active

Glow plug

US10641488B2 · kind B2 · utility

0Cited by

1References

12Claims

0Family size

Assignee

BorgWarner Ludwigsburg GmbH · DE

Inventors

Michael Haussner · Memmingen, DE
Ralf Ehlert · Stuttgart, DE

Key dates

Filing date	Oct 24, 2017
Grant date	May 5, 2020
Priority date	—
Expiry date	Nov 15, 2038

Classification

Technology area (CPC H)Electricity
CPC primaryH05B2203/027
WIPO fieldThermal processes and apparatus
WIPO sectorMechanical engineering

Abstract

Described is a glow plug having a casing and a ceramic glow pin protruding out of the casing. The glow pin has a tapered end section inside the casing. A metal protective tube protrudes out of the casing and surrounds the glow pin. The protective tube has a widened end section inside the casing. A center electrode is arranged in the casing and electrically connected to the glow pin. The glow plug includes an annular or sleeve-shaped contact element through which the glow pin projects and to which the tapered end section of the glow pin is soldered. The contact element is at least partly surrounded by the widened end section of the protective tube.

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