Direct-injection spark-ignition internal combustion engine
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United States of America Patent
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Dec 5, 2006
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app pub date -
Jun 20, 2005
filing date -
Dec 20, 2002
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Abstract
In a direct-injection spark-ignition internal combustion engine having one injector per cylinder for injecting fuel into a combustion chamber, wherein the injector has an injection nozzle with a plurality of injection holes which are distributed over its circumference, so that the jets of fuel from the injection holes form during an injection process a conical cloud of fuel, the piston opposite the injection nozzle includes a piston recess provided with a plurality of radial cavities extending from the recess radially into the piston head for receiving fuel injected into the combustion chamber.
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