The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 23, 2014
Filed:
Dec. 14, 2011
Yue Cheng, Shenyang, CN;
Bernd Last, Reutlingen, DE;
Jochen Hammer, Stuttgart, DE;
Harald Reustlen, Sachsenheim, DE;
Andreas Ruthmann, Eberdingen, DE;
Yue Cheng, Shenyang, CN;
Bernd Last, Reutlingen, DE;
Jochen Hammer, Stuttgart, DE;
Harald Reustlen, Sachsenheim, DE;
Andreas Ruthmann, Eberdingen, DE;
BorgWarner BERU Systems GmbH, Ludwigsburg, DE;
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.