Multitorch Gmbh

Dkt Verwaltungs-gmbh

Georg Maul

Dieter Kuhnert

Uwe Sailer

Steffen Kuhnert

Reinhard Latsch

Jens Paesold

Maurice Kettner

A prechamber spark plug for igniting a fuel-air mixture in an internal combustion engine, in particular a gas engine, having a spark plug body () comprising a prechamber housing () and a cap () that closes the prechamber () at least partially, a ground electrode () and a central electrode () isolated from the ground electrode and projecting into the prechamber, is designed and developed with simple structural means in order to obtain advantageous igniting properties, the ground electrode () being designed for that purpose essentially as a cylindrical pin () that can be welded in a passage (), preferably a bore (), in the spark plug body ().

Prechamber spark plug

The invention refers to a prechamber spark plug comprising an ignition electrode with several electrode arms. The ignition electrode is made of a cross-shaped blank that is cut out of sheet metal and then the electrode arms are set upright by bending. The sheet metal is made of iridium or an iridium-based alloy by rolling in a rolling direction and the ignition electrode blank is cut out in such a way that an angle of 50&#xb0; or less is present between each of the electrode arms and the rolling direction (W).

The invention relates to a pre-chamber spark plug with a housing which, at its forward end, comprises a pre-chamber with a plurality of openings, an insulator arranged in the housing, a center electrode which is surrounded by the insulator and supports an ignition electrode arranged in the pre-chamber which comprises a plurality of electrode arms, wherein the electrode arms each comprise a rear section which extends in a transverse direction in relation to the longitudinal direction of the center electrode and a forward section which extends along a pre-chamber wall and forms a spark gap between itself and the pre-chamber wall. It is provided according to the invention that the electrode arms are embedded in the center electrode and project from a lateral surface of the center electrode. Furthermore, the invention relates to a method according to the invention.

Pre-chamber spark plug

An ignition device for the ignition of a gas mixture in a main combustion chamber (), in particular of an internal combustion engine, is proposed, wherein the absorber body () is heated by means of a laser (). A prechamber () is located upstream of the absorber body () on the combustion chamber inner side () in order to improve the ignition behavior.

Laser ignition for gas mixtures

The invention relates to a spark plug for igniting a combustible gas mixture in an internal combustion engine, comprising an ignition electrode (), an electrical supply line (), to which the ignition electrode () is connected, an insulator body (), through which the supply line () is passed, a housing head (), which rests in sealing fashion on the insulator body () and bears an outer thread () for the purpose of screwing it into an internal combustion engine, a tube housing (), which is fixed on the housing head (), surrounds the insulator body () and has a hexagon head (). The invention provides that the tube housing () surrounds an insulator body holder (), which is welded to the housing head () and presses the insulator body () with a prestress against the housing head ().

Growing community of inventors

Bad Wurzach, Germany

Georg Maul