Patent ID: 9564740
Date: 2017-02-07
CPC Classifications: H01T

Claim:
1. A spark plug for a gas-powered internal combustion engine, comprising: a spark plug body with a passage in which an insulator is located; a front end and a back end, wherein the insulator projects from the spark plug body at the back end and has a supply terminal there; a center electrode that projects from the insulator at the front end and is connected in an electrically conductive manner to the supply terminal through a center conductor located in the insulator; a ground electrode support that is attached to the spark plug body and supports at least one ground electrode that forms a spark gap together with the center electrode; a swirl chamber located at the front end of the spark plug whose wall surrounds the center electrode and the ground electrode; the wall of the swirl chamber is formed by a cylindrical sleeve, which has an open front face and radial perforations; the ground electrode support includes an annular base part and at least one arm that supports the ground electrode; and the arm starts at the base part and extends within the swirl chamber in the longitudinal direction of the spark plug; wherein the arm of the ground electrode support increases in cross-section starting from the ground electrode it supports toward the annular base part of the ground electrode support.