Borgwarner Ludwigsburg Gmbh

Borgwarner Beru Systems Gmbh

Beru Ag

Homag Gmbh

Helmut Müller

Timo Stifel

Werner Niessner

Martin Allgaier

Michael Haussner

Thomas Giffels

Steffen Bohne

Rainer Hain

Jens Hillius

The invention relates to a corona ignition device for igniting fuel in a combustion chamber of an engine by means of a corona discharge, comprising an insulator, a center electrode, which plugs into the insulator and carries an ignition head having a plurality of ignition tips, a coil, which is connected to the center electrode, and a housing, which surrounds the coil and into which the insulator plugs, wherein the ignition head has main body formed from sheet metal. In accordance with the invention, the ignition tips consist of a different material compared to the main body and are fastened to a side face of the main body. The invention also relates to an ignition head for such a corona ignition device and to a method for production thereof.

Corona ignition device and method for producing an ignition head for a corona ignition device

The invention relates to corona ignition device for igniting fuel in a combustion chamber of an engine by means of a corona discharge, comprising an insulator, a center electrode, which plugs into the insulator and carries an ignition head having a plurality of ignition needles, and a housing, into which the insulator plugs. In accordance with the invention, the ignition needles and the center electrode plug into the ignition head. The invention also relates to a method for producing an ignition head for a corona ignition device, wherein a green compact of the ignition head is produced by injection molding of metal powder, and the green compact is sintered while ignition needles and/or a center electrode plug thereinto.

An igniter for igniting a fuel-air-mixture in a combustion chamber, in particular in a combustion engine with one or several combustion chambers, by generating a high frequency corona discharge, said ignitiger comprising an assembly comprising an ignition electrode, an outer conductor surrounding the ignition electrode, which has a front end and a rear end, and an electrical insulator arranged between the ignition electrode and the outer conductor, wherein the ignition electrode is part of an electrical high-frequency resonant circuit, protrudes over the front end of the outer conductor, and is connected to an alternate current source or alternate voltage source which feeds the HF-resonant circuit, and delivers a high frequency alternate current or a high frequency alternate voltage, respectively. The ignition electrode is branched into more than four electrode branches extending away from the outer conductor, in different directions.

Igniter for igniting a fuel-air-mixture using HF corona discharge and engine fitted with such igniters

The present invention refers to a glow plug comprising a ceramic glow pencil (), a protective tube () enclosing the glow pencil (), a plug body () from which the protective tube () projects and a sleeve (), which encloses the protective tube () and which is welded to the protective tube (), is fitted in the plug body ().

Ceramic glow plug

Growing community of inventors

Hessigheim, Germany

Helmut Müller