Ignition coil

Details Ignition coil Ignition coil

2008-07-31

2009-12-01

Nguyen, Tuyen (Department: 2832)

Inductor devices

Coils of special configuration

Reexamination Certificate

active

07626481

ABSTRACT:
An ignition coil includes a coil body transversely arranged outside of a plug hole, and a plug connection portion protruding in a direction perpendicular to an axial direction of the coil body. A secondary coil of the coil body has a maximum outer diameter portion, and an inclined outer diameter portion arranged on two sides of the maximum outer diameter portion in the axial direction. The secondary coil includes a secondary electric wire that is wound obliquely around an outer periphery of a secondary spool such that reduced winding parts and enlarged winding parts are alternately superimposed on each other. The reduced winding part is wound with a winding diameter decreasing obliquely from one side to the other side in the axial direction, and the enlarged winding part is wound with a winding diameter increasing obliquely from the other side to the one side in the axial direction.

REFERENCES:
patent: 4739947 (1988-04-01), Anseel et al.
patent: 5861791 (1999-01-01), Schneider
patent: 6252483 (2001-06-01), Kawano et al.
patent: 7079000 (2006-07-01), Hamer et al.
patent: 7382220 (2008-06-01), Keller
patent: 2002-033230 (2002-01-01), None

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