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:
Nov. 26, 2019
Filed:
May. 02, 2019
Man Energy Solutions SE, Augsburg, DE;
Björn Dirumdam, Ellgau, DE;
MAN Energy Solutions SE, Augsburg, DE;
Abstract
A spark plug for an internal combustion engine, having a center electrode, which has a first body and a second body that is a precious metal welded to the first body and a ground electrode arranged roundabout the center electrode so that an annular ignition gap is formed between the electrodes. The second body of the center electrode is formed as an annular element having a central recess. The first body of the center electrode has a projection that extends into the recess of the second body. A first weld seam is formed between a radially outer surface of the projection of the first body and a radially inner surface of the second body delimiting the recess of the second body, and a second weld seam is formed between an axial surface of the main body of the first body and an axial surface of the second body.