Ignition coil
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United States of America Patent
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Aug 30, 2022
Grant Date -
Sep 16, 2021
app pub date -
Oct 11, 2016
filing date -
Oct 11, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
An ignition coil includes: a center core; a primary coil wound around the center core; a secondary coil wound around the primary coil; a plurality of side cores, which are arranged around the secondary coil, and are coupled to the center core to form a closed magnetic path; a magnet inserted between the plurality of side cores; an igniter configured to control supply and interruption of a current to the primary coil; a case configured to accommodate the center core, the primary coil, the secondary coil, the plurality of side cores, the magnet, and the igniter; and insulating resin filled in the case. The side cores include a wide portion and a narrow portion. The magnet is inserted into the wide portion. The igniter is arranged between the narrow portion and the case.
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