FUEL ADDITIVE FOR IMPROVED PERFORMANCE OF ENGINES WITH FUEL INJECTION Russian patent published in 2016 - IPC C10L1/00 C10L1/22 C10L1/223 C10L10/00 

FIELD: engines and pumps, chemistry.

SUBSTANCE: invention discloses a fuel composition for internal combustion engine with fuel injection, which comprises: a large amount of fuel and small effective amount of a quaternary ammonium salt from reaction of a tertiary amine and a hydrocarbyl-substituted alkylhydroxybenzoate, where R⁶ is a hydrocarbyl group, and n is an integer from 1 to 3, where sum of carbon atoms of all groups R⁶ is equal to at least 8 up to about 200, and R⁶ does not contain N, S or O atoms, and R⁷ is an alkyl group containing 1 to 4 carbon atoms.

EFFECT: disclosed is a method of improving performance of injector and method of operating internal combustion engine with fuel injection; also described is a concentrate additive and additive for fuel used in internal combustion engine with fuel injection.

27 cl, 4 tbl, 7 ex