Ignition apparatus with a pre-gap

Details Ignition apparatus with a pre-gap Ignition apparatus with a pre-gap

1994-03-01

1995-04-04

Argenbright, Tony M.

Internal-combustion engines

High tension ignition system

Having auxiliary spark gap in series or parallel with the coil

F02P 1500, F02P 1512

Patent

active

054027667

ABSTRACT:
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.

REFERENCES:
patent: 1341362 (1920-05-01), Ranney et al.
patent: 2797252 (1957-06-01), Erickson
patent: 3185938 (1940-01-01), Crawford
patent: 3995183 (1976-11-01), Lechner et al.
patent: 4944280 (1990-07-01), Washington

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