Ignition coil for an internal combustion engine
AssigneeRobert Bosch GmbH
InventorsKonstantin Lindenthal, Nikolaus Hautmann, Markus Knepper
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Abstract
An ignition coil for an internal combustion engine has a rod-shaped magnetic core, which is situated within a secondary coil shell. The annular interspace between the magnetic core and the secondary coil shell is filled with an electrically insulating molded material. To prevent the formation of tears in the molded material during thermo-mechanical loading, or the spread of such tears such that the operativeness of the ignition coil is adversely affected, a separation element is provided, which divides the molded material into at least two mutually separate regions.
Claims8
An ignition coil for an internal combustion engine, comprising:
- a rod-shaped magnetic core;
- a coil having a coil shell and concentrically surrounding the magnetic core;
- an ignition coil housing in which the magnetic core and at least the coil are situated;
- a separation element surrounding the magnetic core in a longitudinal direction;
- and
- molded material situated between the separation element and the coil shell,
- wherein the separation element subdivides the molded material into at least two mutually separate regions.
Dependencies are inferred from the claim text.