Internal-combustion engines – High tension ignition system – Having a specific ignition coil
Patent
1993-01-15
1994-02-15
Nelli, Raymond A.
Internal-combustion engines
High tension ignition system
Having a specific ignition coil
F02P 1100
Patent
active
052857611
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. Alternatively, the permanent magnet may be replaced with an electrically non-conductive shim of substantially equal dimension such that the energy output is substantially reduced and the charge/discharge interval substantially increased to thereby allow use of the same basic modularly constructed coil assembly for totally different ignition strategies.
REFERENCES:
patent: 3209295 (1965-09-01), Baermann
patent: 4546753 (1985-10-01), Pierret
patent: 4990881 (1991-01-01), Ooyabu
patent: 5036827 (1991-08-01), Shimada et al.
patent: 5101803 (1992-04-01), Nakamura et al.
patent: 5170768 (1992-12-01), Eileraas
Bauman Robert C.
Hancock Robert L.
Nowlan Shawn J.
Pritz Steven E.
Dixon Richard D.
Ford Motor Company
May Roger L.
Nelli Raymond A.
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