FUEL COMPOSITION AND METHOD OF REDUCING DEPOSITS ON ADMISSION VALVES UTILIZING THIS COMPOSITION Russian patent published in 2000 - IPC

FIELD: liquid fuels. SUBSTANCE: invention relates to employment of alkoxysilicate sulfur-containing compounds as additives for fuel compositions, major amounts of which is constituted by gasoline temperature range hydrocarbons. Invention, in particular proposes compounds of general formula I: R₁-S-(R₂-O)_x-(R₃-O)_y-H (I), in which R₁ is hydrogen, C₁-C₂₀-alkyl, C₂-C₂₀-acyl, C₆-C₂₀-aryl, and polyoxyalkylene alcohol residue of formula H-(O-R₄)_z-, wherein R₄ are independently selected from C₂-C₂₀-alkyls, and z = 1-50; R₂ and R₃ are independently selected from C₂-C₂₀-alkyls; x = 0-10; y = 1-50. Average- weight molecular weight of this compound is at least 600. EFFECT: increased reduction of deposits on admission valves. 34 cl, 3 tbl, 4 ex