Ignition coil for internal-combustion engine, has molding material arranged between sleeve-like unit and secondary coil body, where sleeve-like unit separates molding material into two areas that are separated from each other

摘要

The coil has a magnetic core (12) and a secondary coil (22) that is concentrically surrounded to the core. The core and the coil (22) are arranged in an ignition coil housing (30). The core is surrounded in a longitudinal direction of a sleeve-like unit (18). A molding material is arranged between the sleeve-like unit and a secondary coil body (23), where the sleeve-like unit separates the material into two areas that are separated from each other. The sleeve-like unit has sections that are in contact with an inner wall of the coil body. A serration is formed as a single piece in the unit.