Method for operating an internal combustion engine
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United States of America Patent
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Mar 25, 2008
Grant Date -
Sep 14, 2006
app pub date -
Mar 24, 2006
filing date -
Sep 25, 2003
priority date (Note) -
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Abstract
In a method for operating an internal combustion engine in which the angular locations where the fuel/air mix combustions takes place can be controlled by an adjustment of the inlet and outlet valve timing, the timing of at least one of the intake and exhaust valve opening phases is shifted depending on the engine speed so as to reduce engine emissions.
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