Title:
IGNITION COIL
Document Type and Number:
WIPO Patent Application WO1994006134
Kind Code:
A3
Abstract:
An ignition coil having annular primary and secondary coils, the primary coil wound around a central core member and including a permanent magnet made of a magnetic material that is less than fully dense, and is interposed between one end of the central core member and one end of a C-shaped iron core surrounding the primary and secondary coil assembly and assuring the elimination of any air gap between the C-shaped iron core and the central core member.
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Inventors:
HANCOCK ROBERT L (US)
PRITZ STEVEN E (US)
BAUMAN ROBERT C (US)
PRITZ STEVEN E (US)
BAUMAN ROBERT C (US)
Application Number:
PCT/GB1993/001841
Publication Date:
April 14, 1994
Filing Date:
August 31, 1993
Export Citation:
Assignee:
FORD MOTOR CO (GB)
International Classes:
F02P13/00; H01F38/12; (IPC1-7): H01F31/00
Foreign References:
| EP0431322A1 | 1991-06-12 | |||
| US3209295A | 1965-09-28 | |||
| EP0126451A1 | 1984-11-28 | |||
| DE3323958A1 | 1985-01-10 |
Other References:
PATENT ABSTRACTS OF JAPAN vol. 15, no. 351 (E - 1108) 5 September 1991 (1991-09-05)
CHEMICAL PATENTS INDEX, BASIC ABSTRACTS JOURNAL Week 198832, Derwent World Patents Index; AN 1988-224596
CHEMICAL PATENTS INDEX, BASIC ABSTRACTS JOURNAL Week 198832, Derwent World Patents Index; AN 1988-224596
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