| 摘要 |
An essentially-elongated spark plug for an internal combustion engine of a motor vehicle, including: an essentially-capacitive lower part including two coaxial electrodes; an essentially-inductive upper part including a central mandrel, a coaxial winding around the mandrel, and an external tubular casing that serves as electromagnetic armor; and an insulant disposed radially between the casing and the winding. The essentially-inductive upper part includes a second internal casing of electromagnetic armor, which is disposed radially between the insulant and the external casing. |
