METHOD FOR OPERATING A SPARK-IGNITION INTERNAL COMBUSTION ENGINE
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United States of America Patent
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Feb 11, 2021
app pub date -
Jan 23, 2019
filing date -
Jan 23, 2018
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Abstract
Various embodiments of the present disclosure are directed to methods of operating a spark-ignition internal combustion engine. In one embodiment, a method is disclosed including fuel is injected centrally into a combustion chamber via at least one fuel injection device per cylinder in at least one operating range of the internal combustion engine and is ignited centrally in the combustion chamber via at least one ignition device. The fuel is injected into the combustion chamber at an injection pressure of over 500 bar in the second half of the compression stroke before the top dead center of combustion and the internal combustion engine is operated at an air-fuel ratio λ≥1.
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