Gasoline additives

C - Chemistry – Metallurgy – 10 – L

Patent

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Details

C10L 1/22 (2006.01) C10L 1/14 (2006.01) C10L 1/222 (2006.01) C10L 10/00 (2006.01) C10L 10/04 (2006.01)

Patent

CA 2478968

The invention provides the use of an effective concentration of a hydrocarbyl amine wherein the hydrocarbyl moiety has a number average molecular weight in the range 140 to 255 as an additive in an unleaded gasoline composition comprising a major proportion of a gasoline suitable for use in a spark ignition engine, for reducing injector nozzle fouling in a direct injection spark ignition engine; an unleaded gasoline composition suitable for such use; and a method of operating a direct injection spark ignition engine.

L'invention concerne l'utilisation d'une concentration efficace d'une amine d'hydrocarbyle, dont le groupe caractéristique hydrocarbyle a un poids moléculaire moyen numéral compris entre 140 et 255, comme additif dans une composition d'essence sans plomb renfermant une proportion importante d'une essence appropriée à un moteur à étincelles, de manière à diminuer l'encrassement de l'injecteur dans un moteur à étincelles à injection directe. Cette invention a aussi pour objet une composition d'essence sans plomb appropriée à une telle utilisation et un procédé de fonctionnement d'un moteur à étincelles à injection directe.

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