Small-diameter ignition coil

Details Small-diameter ignition coil Small-diameter ignition coil

2006-07-11

2006-07-11

Nguyen, Tuyen T (Department: 2832)

Inductor devices

With supporting and/or spacing means between coil and core

Preformed insulation between coil and core

C336S206000

Reexamination Certificate

active

07075401

ABSTRACT:
A small-diameter ignition coil includes a center core, a primary coil, a secondary coil, and a thin film tube. The primary and secondary coils are arranged on an outer circumferential side with respect to the center core. The thin film tube has a cylindrical shape. The thin film tube is arranged on an outer circumferential side with respect to one of the primary coil and the secondary coil that is arranged on an outer circumferential side with respect to the other of the primary coil and the secondary coil. The thin film tube is thermally resistive and electrically insulative. The thin film tube has wall thickness that is equal to or less than 0.35 mm. An electrically insulative resin is filled in a gap formed between the thin film tube and one of the primary coil and the secondary coil, which is radially adjacent to the thin film tube.

REFERENCES:
patent: 3559134 (1971-01-01), Daley
patent: 4857877 (1989-08-01), Dethienne
patent: 5485135 (1996-01-01), Hipp
patent: 5736917 (1998-04-01), Kawano et al.
patent: 6456181 (2002-09-01), Nakamura
patent: 6457229 (2002-10-01), Kanazawa et al.
patent: 9-199353 (1997-07-01), None
patent: 2003-232272 (2003-08-01), None

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