Ignition coil for use in internal-combustion engine of motor vehicle, has primary coil and secondary coil that is concentric to primary coil, and housing consisting of magnetically conductive material and forming outer magnetic core

摘要

The coil (10) has a housing (22) made of metal, and a primary coil (11) and a secondary coil (15) that is concentric to the primary coil, where the secondary coil and the primary coil are surrounded within the housing by an isolating mass (36). A magnetic circuit exhibits a rod-shaped inner magnetic core (28) arranged concentric to the primary coil and secondary coil. The magnetic circuit exhibits an outer magnetic core that is connected with the inner core. The housing consists of a magnetically conductive material and forms the outer magnetic core.