Abstract:
Aminocarbamates of polyalkyl or polyalkenyl N-hydroxyalkyl succinimides having the formula: ##STR1## or a fuel soluble salt thereof; wherein R is a polyalkyl or polyalkenyl group having an average molecular weight in the range of about 450 to about 5,000;n is an integer from 2 to 5; andA is a polyamine moiety having at least one basic nitrogen atom, wherein the polyamine is connected to he carbonyl group through one of its nitrogen atoms to form a carbamate linkage.The compounds of formula I are useful as fuel additives for the prevention and control of engine deposits.
Abstract:
A fuel additive composition comprising: (a) a polyalkylphenoxyaminoalkane having the formula: ##STR1## or a fuel soluble salt thereof, wherein R is a polyalkyl group having an average molecular weight in the range of about 600 to 5,000; R.sub.1 and R.sub.2 are independently hydrogen or lower alkyl having 1 to 6 carbon atoms; and A is amino, N-alkyl amino having about 1 to about 20 carbon atoms in the alkyl group, N,N-dialkyl amino having about 1 to about 20 carbon atoms in each alkyl group, or a polyamine moiety having about 2 to about 12 amine nitrogen atoms and about 2 to about 40 carbon atoms; and (b) a poly(oxyalkylene) amine having at least one basic nitrogen atom and a sufficient number of oxyalkylene units to render the poly(oxyalkylene) amine soluble in hydrocarbons boiling in the gasoline or diesel fuel range. The fuel additive compositions of this invention are useful as fuel additives for the prevention and control of engine deposits.
Abstract:
A fuel additive composition comprising: (a) A fuel-soluble aliphatic amine selected from the group consisting of (1) a straight or branched chain hydrocarbyl-substituted amine, (2) a hydroxyalkyl substituted amine, and (3) a straight or branched chain hydrocarbyl-substituted succinimide; and (b) a polyalkyl hydroxyaromatic compound or salt thereof wherein the polyalkyl group has sufficient molecular weight and carbon chain length to render the polyalkyl hydroxyaromatic compound soluble in hydrocarbons boiling in the gasoline or diesel range.
Abstract:
Platinum group metal fuel additives are effective in fuel environments which make the exclusion of water impractical. The fuels additives comprise a platinum group metal compound and a water-functional composition selected from the group consisting of lipophilic emulsifiers, lipophilic organic compounds in which water is miscible and mixtures of these. The additives are preferably effective in fuel compositions having water contents of at least about 0.01% water by weight.
Abstract:
Substituted aromatic polyalkyl ethers having the formula: ##STR1## wherein R.sub.1 is a polyalkyl group having an average molecular weight of about 450 to about 5,000;A is nitro, amino, cyano, aminomethyl, N-alkylamino or N-alkylaminomethyl wherein the alkyl group contains from about 1 to about 6 carbon atoms, or N,N-dialkylamino or N,N-dialkylaminomethyl wherein each alkyl group independently contains from about 1 to about 6 carbon atomsx is an integer from about 0 to about 1; and y is an integer from about 0 to about 10 with the proviso that one of x and y must be 0 and the other must be greater than 0.The substituted aromatic polyalkyl ethers of the present invention are useful as fuel additives for the prevention and control of engine deposits.
Abstract:
A corrosion inhibited fuel mixture includes a hydrocarbon fuel, at least one vanadium composition, and a yttrium composition. The concentration of the yttrium composition in the mixture provides at least a stoichiometric amount of yttrium for a substantially complete reaction between the yttrium and V.sub.2 O.sub.5 formed from the vanadium composition when the mixture is burned. The yttrium and V.sub.2 O.sub.5 react to form YVO.sub.4. One particular yttrium composition useful as a hydrocarbon fuel soluble, water stable vanadium corrosion inhibitor incorporates a yttrium ester having at least four carbon atoms and a hydrocarbon fuel soluble chelating agent that includes 2,4-pentanediene. The complex has a molar ratio of 2,4-pentanediene to yttrium of up to 5:1.
Abstract translation:腐蚀抑制燃料混合物包括烃燃料,至少一种钒组合物和钇组合物。 当混合物燃烧时,混合物中钇组合物的浓度提供至少化学计量的钇,用于在由钒组合物形成的钇和V 2 O 5之间基本上完全的反应。 钇和V2O5反应形成YVO4。 可用作烃燃料可溶的水稳定性钒腐蚀抑制剂的一种特定的钇组合物包含具有至少四个碳原子的钇酯和包含2,4-戊二烯的烃燃料可溶性螯合剂。 络合物的2,4-戊二烯与钇的摩尔比高达5:1。
Abstract:
A fuel composition comprising a major amount of hydrocarbons boiling in the gasoline or diesel range and an effective detergent amount of a compound of the formula: ##STR1## wherein R is a hydrocarbyl group having an average molecular weight of about 400 to 5,000; andR.sub.1 and R.sub.2 are independently selected from the group consisting of hydrogen, hydroxy, --CO.sub.2 H, --NO.sub.2, and --NR.sub.3 R.sub.4, wherein R.sub.3 and R.sub.4 are independently hydrogen or lower alkyl of 1 to 6 carbon atoms; provided that R.sub.1 and R.sub.2 cannot both be hydrogen.
Abstract:
The combination of a fuel-soluble succinimide detergent/dispersant, a fuel-soluble liquid carrier or induction aid therefor, and a fuel-soluble cyclopentadienyl manganese tricarbonyl compound can sharply reduce the formation or accumulation of engine deposits such as intake valve deposits in internal combustion engines. In fact, such compositions can function synergistically whereby the effectiveness of a highly effective succinimide-based deposit control additive can be improved by the addition thereto of the manganese compound, the latter not known to be a substance that reduces deposits.
Abstract:
The present invention relates to a process for reducing nitrogen oxides emissions from a diesel engine, which comprises preparing an emulsion of an aqueous urea solution in diesel fuel, and supplying said emulsion to a diesel engine for combusting therein, whereby combustion of the emulsion leads to a reduction in the nitrogen oxides emissions from the diesel engine when compared with combustion of diesel fuel alone.
Abstract:
Intake valve deposits in port fuel injected engines are reduced by using a fuel containing a mixture of (a) an oil soluble polyamine selected from (i) an aliphatic alkylene polyamine containing at least one olefinic polymer chain attached to a nitrogen and/or carbon atom of the alkylene radical(s) connecting the amino nitrogen atoms and said polyamine having a number average molecular weight in the range of from about 600 to about 10,000, (ii) a Mannich polyamine comprising the condensation product of a high molecular weight sulfur-free alkyl-substituted hydroxyaromatic compound wherein the alkyl group has a number average molecular weight from about 600 to about 10,000, an amine which contains an amino group having at least one active hydrogen atom, and an aldehyde, wherein the respective molar ratio of reactants is 1:0.1-10:0.1-10, or (iii) mixtures of (i) and (ii) and (b) an oil soluble hydrocarbyl poly(oxyalkylene)aminocarbamate having a number average molecular weight in the range of from about 600 to about 10,000 having at least one basic nitrogen atom wherein the hydrocarbyl group contains from 1 to about 30 carbons atoms, and wherein the mixture is present in an amount of 5-1000 ppmw basis the fuel and the weight ratio of component (a) to component (b) ranges from about 3:1 to about 1:2. The fuels are also compatible with carburetor and throttle body injected engines.