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AssigneeENI S.p.A.
InventorsLuigi D'Elia, Pietro Scorletti, Riccardo Rausa, Guido Rivolta, Alberto De Amicis, Tiziano Ambrosini
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Fuel for motor vehicles comprising an emulsion between water and a liquid hydrocarbon, and an anti-cavitation additive comprising a copolymer including 20-80% in moles, preferably 35-70% in moles, of units containing at least one carboxylic group and 80-20% in moles, preferably 65-30% in moles, of units deriving from at least one monomer having an ethylene unsaturation, and wherein at least 20% in moles of the carboxylic groups, preferably 30-90% in moles, is in the form of at least one derivative selected from carboxylate salt, ester, amide and imide.
A fuel for motor vehicles comprising an emulsion between water and a liquid hydrocarbon, and an anti-cavitation additive, including a copolymer comprising 20-80% in moles of units containing at least one carboxylic group and 80-20% in moles of units deriving from at least one monomer having an ethylene unsaturation, and wherein at least 20% in moles of the carboxylic groups is in the form of at least one derivative selected from carboxylate salt, ester, amide and imide.
The fuel for motor vehicles according to any of the previous claims, wherein the units containing at least one carboxylic group derive from a C3-C10 aliphatic monocarboxylic acid having an ethylene unsaturation, or from a C4-C10 aliphatic dicarboxylic acid having an ethylene unsaturation.
The fuel for motor vehicles according to any of the previous claims, wherein the monomer having an ethylene unsaturation is selected from:
The fuel for motor vehicles according to any of the previous claims, wherein the liquid hydrocarbon has a viscosity at 40° C. ranging from 1 to 5.3 cSt and a density at 15° C. ranging from 0.75 to 1.1 kg/dm3.
The fuel for motor vehicles according to any of the previous claims, wherein the water is present in a quantity ranging from 2 to 40% by weight, with respect to the total.
The fuel for motor vehicles according to any of the previous claims, wherein the emulsion is of the water-in-oil type.
The fuel for motor vehicles according to any of the previous claims, wherein said at least one emulsifying agent has an HLB (Hydrophilic-Lipophilic Balance) value ranging from 2 to 10.
The fuel for motor vehicles according to any of the previous claims, wherein said at least one emulsifying agent is a product obtained by the reaction of:
The fuel for motor vehicles according to any of the claims from 1 to 14, wherein said at least one emulsifying agent is a product obtained by the reaction of (b1) a carboxylic acylating agent containing a hydrocarbon chain having from 50 to 500 carbon atoms, with (b2) ammonia or an amine.
A process for feeding an internal combustion engine which comprises:
Dependencies are inferred from the claim text.