COMBUSTION STATE DETERMINATION DEVICE FOR INTERNAL COMBUSTION ENGINE
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United States of America Patent
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Issued Date -
Dec 4, 2014
app pub date -
Nov 22, 2012
filing date -
Nov 28, 2011
priority date (Note) -
Abandoned
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Abstract
A spark ignition type internal combustion engine 1 causes a spark discharge generated between a center electrode 22 and a ground electrode 23 and an electric field generated via an antenna 16 facing inside of a combustion chamber 6 to interact to generate a plasma and ignite a fuel-air mixture. A combustion state determination device used in the spark ignition type internal combustion engine 1 determines a combustion state of the internal combustion engine 1 by comparing a strength of a reflected wave of an electromagnetic wave applied into the combustion chamber 6 from the antenna 16 with a threshold of a combustion state derived in advance by an experiment. This allows for the determination of the combustion state of the spark ignition type internal combustion engine that causes the spark discharge and the electric field to interact to generate the plasma and ignite the fuel-air mixture.
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