METHODS AND USES FOR CONTROLLING DEPOSITS ON VALVES IN DIRECT-INJECTION SPARK-IGNITION ENGINES

METHODS AND USES FOR CONTROLLING DEPOSITS ON VALVES IN DIRECT-INJECTION SPARK-IGNITION ENGINES

The use as a valve deposit controlling additive in a fuel composition for a direct injection spark-ignition internal combustion engine of a combination of: a) at least one hydrocarbyl-substituted aromatic compound; and b) at least one polyalkylene amine.

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Bibliographische Detailangaben
Hauptverfasser: DEWHURST, Ross Alexander, WILLIAMSON, David Michael, GRUNDY, Michael John, ALLAN, Robert Edward
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The use as a valve deposit controlling additive in a fuel composition for a direct injection spark-ignition internal combustion engine of a combination of: a) at least one hydrocarbyl-substituted aromatic compound; and b) at least one polyalkylene amine.