Ignition system for a two cycle engine

Details Ignition system for a two cycle engine Ignition system for a two cycle engine

1993-04-15

1998-03-10

Argenbright, Tony M.

Internal-combustion engines

Combustion chamber means having fuel injection only

Having a particular relationship between injection and...

123169CL, 123531, 123637, 123640, F02P 1500

Patent

active

057249385

ABSTRACT:
The present invention relates to ignition systems for internal combustion engines and, in particular, to a spark ignition system specifically adapted for two-cycle engines. An ignition system is provided which is able to avoid ignition plug smolder and electrode contamination by providing for self-cleaning of the ignition plug electrodes and ensuring complete combustion of an injected rich mixture of fuel/air in the vicinity of the ignition plug electrodes within a combustion chamber. This is accomplished by employing two distinct, yet interrelated, ignition plug firing systems. One such system causes an ignition plug to emit a spark of long duration when an air/fuel charge is present in the combustion chamber, thereby ensuring good combustion. The other system causes the ignition plug to emit a spark of short duration and of very high energy when little, or no, charge is present in the combustion chamber, thereby aiding in the self-cleaning of the electrodes of the ignition plug.

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