Corona ignition device
AssigneeBorgWarner BERU Systems GmbH
InventorsTimo Stifel, Thomas Giffels
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Abstract
What is described is a corona ignition device for igniting fuel in an internal combustion engine by generating a corona discharge, said corona ignition device comprising a housing, an insulator, which is held in the housing, a centre electrode, which is held in the insulator, and at least one ignition tip at an and of the centre electrode. The housing surrounds an interior, which has a cylindrical portion in which a cylindrical portion of the insulator sits. A widened interior portion adjoins at the end of the cylindrical interior portion remote from the ignition peak. The insulator has a thinner portion in the widened interior portion. The cylindrical portion of the insulator carries an electrically conductive coating, which ends before the thinner portion.
Claims14
A corona ignition device for igniting fuel in an internal combustion engine by generating a corona discharge, said corona ignition device comprising
- a housing,
- an insulator, which is held in the housing,
- a centre electrode, which is held in the insulator, and
- at least one ignition tip at an end of the centre electrode,
- wherein the housing surrounds an interior, which has a cylindrical portion and a widened portion adjoining the cylindrical portion of the interior on an end facing away from the at least one ignition tip,
- wherein a cylindrical portion of the insulator sits in the cylindrical portion of the interior,
- wherein the insulator has a thinner portion in the widened portion of the interior, and
- wherein the cylindrical portion of the insulator carries an electrically conductive coating, which ends before the thinner portion of the insulator.
Dependencies are inferred from the claim text.