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. 17, 2007
Filed:
Aug. 25, 2003
Ewald Schmidt, Ludwigsburg, DE;
Michael Thiel, Leonberg, DE;
Juergen Hasch, Stuttgart, DE;
Hans-oliver Ruoss, Stuttgart, DE;
Klaus Linkenheil, Stuttgart, DE;
Ewald Schmidt, Ludwigsburg, DE;
Michael Thiel, Leonberg, DE;
Juergen Hasch, Stuttgart, DE;
Hans-Oliver Ruoss, Stuttgart, DE;
Klaus Linkenheil, Stuttgart, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A device is described for igniting an air-fuel mixture in an internal combustion engine using a high-frequency electric power source having a coaxial waveguide structure () into which the high-frequency electric power may be coupled and whose one end protrudes into the individual combustion chamber of a cylinder of the internal combustion engine. The one end of the coaxial waveguide structure () is designed as an igniter () in such a way that, when a voltage potential is applied, a field structure (), protruding into the combustion chamber, and thus a free-standing plasma in the air-fuel mixture at the inner conductor (), projecting from the waveguide structure, is generatable via an abrupt and/or smooth cross-section change () of the inner conductor () and/or the outer conductor ().