H - Electricity – 01 – T
Patent
H - Electricity
01
T
H01T 13/46 (2006.01) F02P 9/00 (2006.01)
Patent
CA 2061287
Only one pre-gap is arranged between the ignition coil and the distributor so that it is connected in series with each of the ignition plugs in the engine. A relay device is connected in parallel with the pre-gap. The relay device is normally closed to supply a high voltage from the ignition coil to the distributor, bypassing the pre-gap. Only when sensor signals indicate that the air-fuel combustion state is bad, the relay device is opened to cause the high voltage from the ignition coil to be applied to the pre-gap before being supplied to the distributor. This construction permits the single pre-gap to serve all the cylinders in the engine and prolongs the working life of the pre-gap.
Mitani Tetsuya
Sato Takashi
Tsuchiya Hiromitsu
Robic
Yazaki Corporation
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