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3 results about "Gasoline direct injection" patented technology
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Gasoline direct injection (GDI) (also known as petrol direct injection, direct petrol injection, spark-ignited direct injection (SIDI) and fuel-stratified injection (FSI)), is a form of fuel injection employed in modern two-stroke and four-stroke gasoline engines. The gasoline is highly pressurized, and injected via a common rail fuel line directly into the combustion chamber of each cylinder, as opposed to conventional multipoint fuel injection that injects fuel into the intake tract or cylinder port. Directly injecting fuel into the combustion chamber requires high-pressure injection, whereas low pressure is used injecting into the intake tract or cylinder port.
Fuel additives and formulations for improving performance of gasoline direct injection engines
Fuel additive compositions having at least one acylated detergent, at least one Mannich detergent, and at least one polyether and / or polyetheramine. The acylated detergent may be the reaction product of a hydrocarbyl-substituted acylating agent and a nitrogen containing compound having at least one amino group, that may optionally be quaternizable, and at least one oxygen or nitrogen atom capable of reacting with the hydrocarbyl-substituted acylating agent. The compositions are useful for reducing the formation of carbonaceous deposits and / or cleaning carbonaceous deposits in an engine, such as a gasoline direct injection engine.
Owner:THE LUBRIZOL CORP
Particulate reduction in GDI engines using mannich detergents
The present disclosure relates to fuel additive packages, fuels, and methods of achieving emission particulate reductions in gasoline direct injection (GDI) engines using select Mannich detergents (e.g., reaction products of a hydrocarbyl-substituted hydroxyaromatic compound, an aldehyde, and an amine). In one approach or embodiment, the select Mannich detergents herein for emissions particulate reductions include one or more of the following characteristics: (i) certain molar ratios of the hydroxyaromatic compound, the amine, and the aldehyde; (ii) select oligomer structures; and / or (iii) certain isomeric forms of polyisobutylene substituents on the hydroxyaromatic compound.
Owner:AFTON CHEMICAL CORPORATION
Gasoline additive composition for improved engine performance
ActiveUS12624303B2Liquid carbonaceous fuelsFuel additivesGasoline direct injectionProcess engineering
The present disclosure provides fuel additives including Mannich detergent additive(s) and succinimide detergent additive(s) effective to improve engine performance in both port fuel injected and gasoline direct injection engines.
Owner:AFTON CHEMICAL CORPORATION