Abstract:
Methods for improving the injector performance, unsticking fuel injectors, and reducing an amount of alkali metal carboxylate deposits on internal components of fuel injectors. The method includes operating the diesel engine on a fuel composition comprising a major amount of diesel fuel and from about 45 to about 550 ppm by weight based on a total weight of fuel composition of a fuel additive consisting essentially of a compound of the formula wherein R is an alkyl or alkenyl group containing from 20 to 170 carbon atoms. The additive has a total acid number (TAN) ranging from about 50 to about 290 mg KOH/g. Fuel injectors of the fuel injected diesel engine have an average injector hole diameter of less than 160 μm and an average smallest clearance between injector needle and injector barrel/casing of less than about 10 μm.
Abstract:
A fuel soluble additive for a diesel engine, a method for improving performance of fuel injectors and a method for cleaning fuel injectors for a diesel engine. The fuel soluble additive includes a quaternary ammonium salt derived from an amido amine containing at least one tertiary amino group and an epoxide, in the presence of a proton donor selected from a carboxylic acid and an alkyl phenol. The amido amine is made in a reaction medium that is substantially devoid of an acylating agent.
Abstract:
A fuel additive composition, fuel composition, method of improving the injector performance of a fuel injected engine, method for preventing or cleaning up deposits in an engine or fuel system, method of reducing wear in a fuel system of an engine, and method of improving the demulsibility of a fuel composition. The fuel composition includes from about 5 to about 300 ppm by weight based on a total weight of the fuel composition of a hydrocarbyl soluble quaternary ammonium carboxylate derived from a quaternary ammonium carbonate and an organic acid.
Abstract:
A fuel soluble additive for a diesel engine, a method for improving performance of fuel injectors and a method for cleaning fuel injectors for a diesel engine. The fuel soluble additive includes a quaternary ammonium salt derived from the reaction of (a) a hydrocarbyl amine containing at least one tertiary amino group, (b) an epoxide compound selected from a glycidol, a glycidyl ether, glycidyl ester, polyglycidyl ether, a polyglycidyl ester, and combinations thereof, wherein substituents of the glycidyl group have, on average, less than five carbon atoms per hetero atom, and (c) optionally a proton donor.
Abstract:
A fuel additive and its preparation for a engine, a fuel containing the additive, a fuel additive concentrate, a method for improving performance of fuel injectors and a method for cleaning fuel injectors for an engine. The fuel additive includes a quaternary ammonium salt derived from a reaction of a hydrocarbyl substituted anhydride, a tertiary amine and a hydroxyl-containing epoxide, wherein the tertiary amine is devoid of primary and secondary amino groups.
Abstract:
A fuel composition, a lubricant composition, and methods for reducing friction or wear of moving parts. The fuel composition includes gasoline and from about 10 to about 500 ppm by weight of a dialkylaminoalkanol of the formula R1(R2)NCH2CH(R3)R4. The lubricant composition includes base oil of lubricating viscosity and from about 0.05 to about 5.0 weight percent of a dialkylaminoalkanol of the formula R1(R2)NCH2CH(R3)R4. In the above formulas wherein R1 is an alkyl group or a hydroxyalkyl group containing from 8 to 50 carbon atoms; R2 is an alkyl group containing from 1 to 4 carbon atoms; R3 is selected from H and OH; and R4 is selected from H, an alkyl group containing from 1 to 4 carbon atoms, and CH2OH and wherein at least one of R3 and R4 contains a hydroxyl group and provided that when R1 is a hydroxyalkyl group, R3 is OH and R4 is CH2OH.
Abstract:
In accordance with the disclosure, exemplary embodiments provide a method for improving injector performance, a method for restoring power to a diesel fuel injected engine, and a method of operating a fuel injected diesel engine. The method includes combining a fuel with a reaction product derived from (i) a hydrocarbyl substituted dicarboxylic acid or anhydride, wherein the hydrocarbyl substituent has a number average molecular weight ranging from about 600 to about 800 and (ii) a polyamine includes a compound of the formula H2N—((CHR1—(CH2)n—NH)m—H, wherein R1 is hydrogen, n is 1 and m is 4, wherein a molar ratio of (i) reacted with (ii) ranges from about 1.3:1 to about 1.6:1. The reaction product, as made, contains no more than 3.0 wt. % unreacted polyamine in the reaction product based on active material in the reaction product.
Abstract:
A fuel soluble additive for a gasoline engine, a method for improving performance of fuel injectors and a method for cleaning fuel injectors for a gasoline engine. The fuel soluble additive includes a quaternary ammonium salt derived from an amido amine containing at least one tertiary amino group and an epoxide, in the presence of a proton donor selected from a carboxylic acid and an alkyl phenol. The amido amine is made in a reaction medium that is substantially devoid of an acylating agent.
Abstract:
In accordance with the disclosure, exemplary embodiments provide a fuel additive concentrate, a method for cleaning fuel injectors, a method for restoring power to a diesel fuel injected engine, a fuel composition, and a method of operating a fuel injected diesel engine. The additive concentrate includes (a) a hydrocarbyl substituted quaternary ammonium internal salt; and (b) a reaction product of (i) a hydrocarbyl substituted dicarboxylic acid, anhydride, or ester and (ii) an amine compound or salt thereof of the formula wherein R is selected from hydrogen and a hydrocarbyl group containing from about 1 to about 15 carbon atoms, and R1 is selected from hydrogen and a hydrocarbyl group containing from about 1 to about 20 carbon atoms. The reaction product (b) on average has less than 2 amino-triazole groups per molecule. A weight ratio of (a) to (b) in the additive concentrate ranges from about 10:1 to about 1:10.