Ignition apparatus for internal-combustion engine

Details Ignition apparatus for internal-combustion engine Ignition apparatus for internal-combustion engine

1996-02-09

1998-03-31

Wong, Peter S.

Inductor devices

With outer casing or housing

Potted type

336110, 336212, 361386, H01F 2702, H01F 1706

Patent

active

057343110

ABSTRACT:
An ignition apparatus for an internal-combustion engine comprises a first iron-core section around which a primary coil of an ignition coil is wound; a secondary coil which is wound around the outside of the primary coil; a second iron-core section disposed in the outside of the secondary coil, which forms a closed magnetic path together with the first iron-core section; a housing case which accommodates the primary and secondary coils; and an insulating resin layer composed of first and second resin sections arranged between the housing case and the secondary coil; wherein the first resin section between the second iron-core section and the secondary coil is made thicker than the second resin section which is the part of the insulating resin layer other than the one thereof.

REFERENCES:
patent: 4740773 (1988-04-01), Buchschmid et al.
patent: 4866409 (1989-09-01), Umezaki
patent: 4990881 (1991-02-01), Ooyabu
patent: 5128645 (1992-07-01), Suda
patent: 5172302 (1992-12-01), Taruya et al.

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