Patent ID: 9574540
Date: 2017-02-21
CPC Classifications: F02P

Claim:
1. A corona ignition device for igniting fuel in a combustion chamber of an engine by means of a corona discharge, comprising: an insulator, which has a continuous channel; a central electrode, which is disposed in the continuous channel of the insulator and leads to at least one ignition tip; a glass seal, which seals the continuous channel; and a housing in which the insulator is disposed, wherein the central electrode has a sealing face, which, together with a sealing face of the insulator, forms a seat; an annular air gap between the central electrode and the insulator, said annular air gap being open towards the ignition tip in an end portion of the continuous channel, said end portion facing the ignition tip; and wherein an end portion of the insulator facing the ignition tip protrudes from the housing and the sealing face of the insulator is disposed on the end portion of the insulator.