QUATERNARY AMMONIUM COMPOUNDS AND THEIR USE AS ADDITIVES TO FUEL OR LUBRICANTS Russian patent published in 2020 - IPC C07C215/40 C07C217/28 C07C211/63 C07C53/10 C07C57/12 C07C57/13 C08F10/10 C10L1/222 C10L10/18 C07C65/10 C07C61/00 C07C63/06 

FIELD: machine building.

SUBSTANCE: invention relates to an improved diesel fuel composition which improves operational characteristics of a diesel engine during combustion in an engine. Proposed diesel fuel composition contains one or more quaternary ammonium salts, having the following formula:

,

where each of R¹, R², R³ and R⁴ is independently selected from an unsubstituted alkyl group and a hydroxyalkyl group containing less than 8 carbon atoms, and R⁵ represents hydrogen or an optionally substituted hydrocarbyl group. When combusting in a diesel engine with a fuel injection system at pressure higher than 1350 bar (1.35⋅10⁸ Pa), composition leads to considerable reduction of intensity of formation of deposits in nozzles of the engine, in particular, on injector nozzle and nozzle tip, as well as on fuel filter, which contributes to maintenance of purity and cleaning of engine.

EFFECT: specified advantages allow improving efficiency of fuel combustion, reducing noise and fuel consumption.

15 cl, 4 dwg, 3 tbl, 18 ex