CONTROL METHOD AND SPARK PLUG FOR SPARK -IGNITED INTERNAL COMBUSTION ENGINE
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United States of America Patent
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Issued Date -
Apr 26, 2012
app pub date -
Sep 24, 2009
filing date -
Jun 29, 2009
priority date (Note) -
Abandoned
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Abstract
A control method for a spark-ignited internal combustion engine includes generating plasma by interacting an electric field generated in a combustion chamber by electric field generation means with spark discharge caused by a spark plug, and igniting an air-fuel mixture, wherein the electric field generated by the electric field generation means is set to an intensity weaker than that of an electric field generated by the spark plug when the spark discharge is caused, and set to an intensity at which discharge into the combustion chamber is disabled, and the air-fuel mixture can be securely ignited and combusted at an intended ignition timing and at a position of the spark plug.
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