Ignition apparatus for an internal combustion engine
AssigneesHitachi, Ltd., Hitachi Car Engineering Co., Ltd.
InventorsEiichiro Konda, Noboru Sugiura, Kazutoshi Kobayashi, Kenichi Katagishi, Yoichi Anzo, Hidetoshi Oichi, Hiroshi Watanabe
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Abstract
A cylindrical type ignition apparatus housed in a spark plug hole of a cylinder of an internal combustion engine is disclosed. A center core, a primary coil, a secondary core and a side core are provided, and a closed magnetic path is formed by connecting magnetically the center core and the side core by a core on a high voltage side and a core on a low voltage side, or a semi-closed magnetic path is formed by connecting magnetically the center core and the side core by a core on a low voltage side.
Claims15
A cylindrical type ignition apparatus housed in a plug hole and connected directly to a spark plug, comprising a center core, a primary coil and a secondary each disposed outside the center core, a side core disposed outside those coils, and a core disposed on a lower voltage side, for connecting magnetically said center core and said side core.
Dependencies are inferred from the claim text.