Patent · US Active

Glow plug

US8916800B2 · kind B2 · utility

0Cited by

1References

20Claims

0Family size

Assignee

BORGWARNER BERU SYSTEMS GMBH · DE

Inventors

Yue Cheng · Chongqing, CN
Bernd Last · Reutlingen, DE
Jochen Hammer · Stuttgart, DE
Harald Reustlen · Sachsenheim, DE
Andreas Ruthmann · Eberdingen, DE

Key dates

Filing date	Dec 14, 2011
Grant date	Dec 23, 2014
Priority date	—
Expiry date	Mar 18, 2032

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF23Q7/001
WIPO fieldThermal processes and apparatus
WIPO sectorMechanical engineering

Abstract

A glow plug includes a ceramic glow pencil, a protective sleeve from which the glow pencil protrudes, and a housing from which the protective sleeve protrudes. The protective sleeve is fastened to the glow pencil via a holding element which is disposed outside of the housing and is soldered to the glow pencil. The ceramic glow pencil includes a substantially cylindrical inner conductor disposed along a length of a distal end of the ceramic glow pencil, an insulating layer disposed over the inner conductor, and an outer conductive layer disposed over the insulating layer, wherein the outer conductive layer is connected to the inner conductor at the distal end of the ceramic glow pencil.

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