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:
Apr. 06, 2021
Filed:
Apr. 11, 2017
Rosenberger Hochfrequenztechnik Gmbh & Co. KG, Fridolfing, DE;
Martin Fuchs, Freilassing, DE;
Michael Wollitzer, Fridolfing, DE;
Gunnar Armbrecht, Mühldorf am Inn, DE;
Peter Awakowicz, Bochum, DE;
Thomas Musch, Bochum, DE;
Sven Gröger, Bochum, DE;
Andre Bergner, Bottrop, DE;
Gordon Notzon, Bochum, DE;
Marcel Van Delden, Bochum, DE;
ROSENBERGER HOCHFREQUENZTECHNIK GMBH, Fridolfing, DE;
Abstract
The invention relates to a spark plug () for an internal combustion engine, in particular having a high frequency ignition system, having a central electrode (), a ground electrode () and an electrical insulator () arranged between the central electrode () and the ground electrode (), wherein a central electrode connecting point () for electrically connecting the central electrode () to an ignition system is provided on the insulator (), wherein the central electrode () and the ground electrode () project beyond the insulator () at an axial end () of the spark plug () and each form, with a part projecting axially beyond the insulator (), a central electrode end () and a ground electrode end (), wherein the central electrode end () and the ground electrode end () are arranged and embodied in such a way that an axial region () of a gap () is formed between them in an axial direction, wherein the axial region () of the gap () is spaced apart from the insulator (), wherein at least one additional electrode () is provided which projects beyond the insulator () at the axial end () of the spark plug () and forms, with a part which projects axially beyond the insulator (), an additional electrode end (). In this case the additional electrode () is arranged electrically insulated from the ground electrode () and the central electrode (), on the spark plug (), wherein the additional electrode end () projects into the axial region () of the gap () between the central electrode end () and the ground electrode end () or is arranged into a region () of the gap () which is radially adjacent to the axial region () of the gap (), and as a result divides the gap () into two ignition spark end gaps ().