Method for reducing the particle emissions of a spark-ignition internal combustion engine with direct injection, and internal combustion engine for carrying out such a method

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United States of America Patent

PATENT NO 9115659
APP PUB NO 20130092124A1
SERIAL NO

13627953

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Abstract

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A method for reducing the particle emissions of a spark-ignition, direct-injection internal combustion engine is provided. The method comprises operating at least one cylinder superstoichiometrically, responsive to an injector coking level and sufficiently high cylinder temperature, for a duration to increase oxidation of coking residues.

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Patent Owner(s)

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FORD GLOBAL TECHNOLOGIES LLC1 AMERICAN RD FL4 DEARBORN MI 48126-2701

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lorenz, Thomas Cologne, DE 68 615
Mehring, Jan Cologne, DE 69 409
Ruhland, Helmut Hans Eschweiler, DE 46 665
Springer, Moritz Klaus Hagen, DE 45 503

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