Gasoline additives

Details Gasoline additives Gasoline additives

2011-03-08

2011-03-08

Toomer, Cephia D (Department: 1771)

Fuel and related compositions

Liquid fuels

Organic nitrogen compound containing

C044S415000

Reexamination Certificate

active

07901470

ABSTRACT:
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 is provided containing 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. A method of operating a direct injection spark ignition engine is also provided.

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W.W. Yau, J.J. Kirkland and D.D. Bly, “Modern size exclusion liquid chromatography”, John Wiley & Sons, NY, 1979.

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