IGNITION COIL FOR INTERNAL COMBUSTION ENGINE, AND MANUFACTURING METHOD THEREOF

摘要

PROBLEM TO BE SOLVED: To provide an ignition coil for an internal combustion engine being made to be difficult to occur a partial magnetic saturation in a main yoke section and being capable of increasing an output energy without enlarging the external shape of the ignition coil.

SOLUTION: An air-gap is formed between one end of the main yoke section fitting the coil and one side of a connecting yoke section. The sectional area of a section near the air-gap is formed in a size larger than that on the far side from the air-gap in the main yoke section.

COPYRIGHT: (C)2009,JPO&INPIT