Automotive gasoline fuel for internal combustion engines

C - Chemistry – Metallurgy – 10 – L

Patent

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Details

C10L 1/06 (2006.01)

Patent

CA 2350556

A fast burning, gasoline type composition for spark ignited internal combustion engines having a ASTM D-86, 90% distillation temperature of 310~F or less and an octane number (R+M)/2 of 82 or less that can be used with a reduced spark advance in the engines to effect a reduction in NOx exhaust emissions. Also disclosed is a gasoline having low octane (82-87) which can be used interchangeably in engines having a reduced spark advance and in engines having conventional spark advance.

L'invention concerne une composition de type essence à combustion rapide pour moteurs à combustion interne allumée par étincelle ayant une température de distillation à 90 % ASTM D-86 de 310 ·F ou moins et un indice d'octane (R+M)/2 au moins égal à 82 pouvant être utilisée avec une faible avance à l'allumage dans les moteurs afin d'obtenir une réduction des émissions d'échappement NO¿x?. L'invention concerne également une essence ayant un indice d'octane bas (82-87) pouvant être utilisée de manière interchangeable dans des moteurs ayant une avance à l'allumage réduite et dans des moteurs ayant une avance à l'allumage classique.

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