US 11,855,417 B2
Spark plug and method for producing a spark plug
Stefan Prankl, Weer (AT); Johann Klausner, St. Jakob i.H. (AT); and Robert Grabner, Pogier (AT)
Assigned to Innio Jenbacher GmbH & Co OG, Jenbach (AT)
Appl. No. 17/639,337
Filed by INNIO Jenbacher GmbH & Co OG, Jenbach (AT)
PCT Filed Oct. 15, 2019, PCT No. PCT/AT2019/060344
§ 371(c)(1), (2) Date Mar. 1, 2022,
PCT Pub. No. WO2021/072458, PCT Pub. Date Apr. 22, 2021.
Prior Publication US 2022/0329049 A1, Oct. 13, 2022
Int. Cl. H01T 13/32 (2006.01); H01T 13/08 (2006.01); H01T 13/16 (2006.01)
CPC H01T 13/08 (2013.01) [H01T 13/16 (2013.01); H01T 13/32 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus, comprising:
a spark plug configured to ignite a combustible fuel in an internal combustion engine, wherein the spark plug comprises:
an igniter arranged at an end of the spark plug and configured to face the combustion chamber, when the spark plug is mounted in the internal combustion engine, wherein the igniter comprises at least one middle electrode and at least one ground electrode, wherein the igniter comprises a spark gap between the at least one middle electrode and the least one ground electrode, wherein the at least one ground electrode is arranged on a ground electrode carrier,
a wall at least partially surrounding the igniter, and
a sealing area configured to seal the combustion chamber against the environment,
wherein the wall comprises the sealing area located at an end of the wall, which end faces the combustion chamber when the spark plug is mounted in the internal combustion engine, wherein the sealing area comprises a chamfer, and the sealing area comprising the chamfer extends at least partially onto the ground electrode carrier.