Internal-combustion-engine ignition device

Details Internal-combustion-engine ignition device Internal-combustion-engine ignition device

1993-06-03

1995-01-03

Wolfe, Willis R.

Internal-combustion engines

High tension ignition system

Power supply, ignition coil primary, and interrupter element...

1231465A, 73116, 200 19DC, F02P 706

Patent

active

053776534

ABSTRACT:
An internal-combustion-engine ignition device in which such components as the ion-current-detection unit are provided integrally with other ignition-device components to realize a simplified structure, thereby helping to attain a reduction in cost and an improvement in terms of layout and reliability, the internal-combustion-engine ignition device including: a distributor cap having a central electrode connected to an ignition coil, a plurality of peripheral electrodes respectively connected to the ignition plugs of cylinders and adapted to be selectively connected to the central electrode, and diodes each connected at one end to the peripheral electrodes and at the other end to the central electrode, the distributor cap having openings lodging the diodes for detecting an ion current generated upon combustion of air-fuel mixture inside the cylinders, caused by ignition of the ignition plugs. An ion-current-detection unit may be arranged integrally with the distributor cap, distributor housing, ignition coil, or engine-turning-angle detecting device.

REFERENCES:
patent: 4357927 (1982-11-01), Igashira et al.
patent: 4359893 (1982-11-01), Kizler et al.
patent: 4491110 (1985-01-01), Bone et al.
patent: 5044348 (1991-09-01), Ookawa
patent: 5144936 (1992-09-01), Murata et al.
patent: 5207200 (1993-05-01), Iwata
patent: 5230240 (1993-07-01), Ohsawa et al.
patent: 5272914 (1993-12-01), Murata et al.
English language Abstract of DE 3,934,310, Mitsubishi Denki KK, Oct. 1989.

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