Method of operating an internal combustion engine
AssigneeDaimler-Benz Aktiengesellschaft
InventorsChristian Enderle, Stephan Kramer, Stephan Pischinger, Klaus Rossler
Life of this patent
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Abstract
In a method of operating an internal combustion engine with direct injection of fuel into an engine combustion chamber during a compression stroke of a respective piston wherein first a main fuel volume is injected and subsequently an ignition fuel volume is injected into the combustion chamber, the injection of the main fuel volume is initiated only after about 3/10 of the compression stroke of the piston has been completed.
Claims5
A method of operating an internal combustion engine with direct fuel injection into an engine combustion chamber, said method comprising the step of injecting into said combustion chamber during a compression stroke of a respective piston first, after completion of about 3/10 of the compression stroke of the engine piston over the full load range, a main fuel volume generating a main fuel cloud in said combustion chamber and subsequently an ignition fuel volume, which generates in said combustion chamber in the area around the spark plug an ignition fuel cloud providing an essentially stoichiometric fuel/air mixture and igniting said ignition fuel cloud which, upon combustion ignites the main fuel cloud.
Dependencies are inferred from the claim text.