| 摘要 |
The present invention relates to a process for manufacturing an ignition device or connector for an internal combustion engine and the ignition device or convection obtained by such process. The ignition convector, in use, creates a plasma for igniting lean mixtures. Said device an insulator 2 containing a central electrode 3 and a metal shell 4, in which the insulator is fixed. The ground electrode of conventional spark-plugs is replaced by a circular capsule 17 welded to the shell base, after having been subjected to a hard chromizing treatment. The shell comprises an annular recess 14 provided in the thickness of its wall, and is welded to the ceramic insulator 2 by brazing. |
