Ignition coil assembly for internal combustion engines

Details Ignition coil assembly for internal combustion engines Ignition coil assembly for internal combustion engines

1986-03-17

1987-04-21

Argenbright, Tony M.

Internal-combustion engines

High tension ignition system

Having an ignition coil with multiple primary or secondary...

123634, 336 96, 336214, 336234, F02P 100

Patent

active

046587993

ABSTRACT:
For a four cylinder engine, there are provided two ignition coil units, each including a primary coil and a secondary coil. The primary coil is wound around a center core made of grain oriented silicon steel, which forms a closed magnetic path for the magnetic flux produced by the coil unit together with a side core formed of non-grain oriented steel as one body. In the closed magnetic path there is provided an air gap. The current of the primary coils is controlled by transistors operated in response to gate signals furnished from an ignition control unit. The transistors are provided with a diode in the reverse parallel therewith. With these arrangements, the ignition coil assembly for an electronic distribution system can be miniaturized with the unfavorable influence of the magnetic inteference suppressed remarkably.

REFERENCES:
patent: 4509495 (1985-04-01), Betz et al.
patent: 4599985 (1986-07-01), Betz

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