Ignition coil

Details Ignition coil Ignition coil

2007-07-13

2009-12-08

Nguyen, Tuyen (Department: 2832)

Inductor devices

With outer casing or housing

Reexamination Certificate

active

07629869

ABSTRACT:
An ignition coil includes a coil body, a connector, a coil case, a filling resin, and a vent groove. The coil body includes a primary coil, a secondary coil, and a center core. The secondary coil has a secondary spool and a secondary wire wound around the spool. The center core is provided on an inner peripheral side of the secondary spool. The connector is coupled with an end of the coil body. The connector has an aligning part adapted for centering the center core. An end of the secondary spool has a tubular shape adapted for engagement with an outer periphery of the aligning part. The vent groove is provided to facing surfaces of the aligning part and of the end of the second spool. The vent groove is adapted for releasing gas around the center core to an exterior of the secondary spool.

REFERENCES:
patent: 5618193 (1997-04-01), Nakajima et al.
patent: 6622712 (2003-09-01), Nakashima et al.
patent: 6653922 (2003-11-01), Sano et al.
patent: 6977572 (2005-12-01), Kawai et al.
patent: 2000-138126 (2000-05-01), None
patent: 2004-022582 (2004-01-01), None
patent: 2004-111649 (2004-04-01), None
Japanese Office Action dated Feb. 3, 2009, issued in corresponding Japanese Application No. 2006-205270, with English translation.

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