Patent ID: 9077156
Filing Date: 2015-07-07
Classification: H01T

Abstract:
1. A spark plug of an internal combustion engine, preferably for spark-ignition gas engines, comprising a spark plug housing ( 2 ) surrounding an insulating body ( 1 ) and a center electrode ( 3 ) and at least one ground electrode ( 4 ) supported by a ground electrode carrier ( 6 ), wherein the ignition surface ( 12 ) of the center electrode ( 3 ) and the ignition surface ( 26 ) of the ground electrode ( 4 ) are surrounded by a wall ( 8 ) forming a chamber ( 5 ) open or closed on the combustion chamber side, characterized in that the ground electrode carrier ( 6 ), as viewed perpendicularly to the longitudinal axis (A) of the spark plug ( 2 ), is spaced further apart from the center electrode ( 3 ) than it is from the outer surface ( 7 ) of the wall ( 8 ) of the chamber ( 5 ), and supports at least one finger-shaped ground electrode ( 4 ) extending into the chamber ( 5 ) through an opening ( 50 ) in the wall ( 8 ), wherein the ignition surface ( 26 ) of the ground electrode ( 4 ) lies at the same height as the ignition surface ( 12 ) of the center electrode ( 3 ) in the chamber ( 5 ).