Gasoline detergent with cleaning function and preparation method thereof

Abstract

The invention relates to a gasoline detergent with cleaning function and a preparation method thereof. Gasoline containing the detergent can clean deposits in an oil injection nozzle, an air inlet valve and a combustion chamber of a gasoline engine. The detergent comprises at least one type of high-activity polyetheramine, at least one type of high-activity polyisobutene amine, base oil serving as carrying oil, other solvent oil and functional agents such as an antioxidant, an anti-rusting agent, a preservative and a demulsifying agent. Specifically, the detergent comprises the following components in percentage by mass: 10 to 80 percent of polyetheramine, 5 to 20 percent of polyisobutene amine, 5 to 35 percent of carrying oil and 5 to 35 percent of solvent oil and other functional agents. After being added into commercially available motor gasoline according to the dosage of between 1,000 and 3,000 ppm, the detergent of the invention can suppress and clean the deposits of the oil injection nozzle, the air inlet valve and the combustion chamber of an oil-fired air inlet system of the gasoline engine. The motor gasoline containing the detergent of the invention can clean the deposits of the oil injection nozzle, the air inlet valve and the combustion chamber in which the deposits are generated.

Description

technical field [0001] The invention relates to a vehicle gasoline detergent with cleaning function and a preparation method thereof. The detergent is mainly composed of highly active polyetheramine, highly active polyisobutyleneamine and carrier oil. The agent can clean gasoline engine fuel injectors, intake valves, and deposits in combustion chambers. The invention also relates to the use of this detergent in motor gasoline. Background technique [0002] With the rapid development of the automobile industry, the number of automobiles in our country is increasing rapidly. As automobiles bring convenience to people's production and life, they also increase the consumption of petroleum resources and the emission of harmful exhaust substances. How to keep the car engine in a good working condition for a long time, so that the fuel gasoline can be fully burned, reduce fuel consumption and improve emissions. This must require the fuel intake system of the automobile engine t...

AI Technical Summary

Problems solved by technology

CN101230298A discloses a gasoline detergent that can significantly reduce deposits in the combustion chamber of a gasoline engine. This patent uses a solution of polyetheramine and polyether. The detergency of polyetheramine alone is not strong, and a relatively large dose is required to achieve a certain level of cleanliness. cleanliness

CN101230297A discloses a gasoline detergent that can reduce deposits in the combustion chamber of a gasoline engine. This patent uses polyisobutenylamine and polyether as the main raw materials, and has certain detergency, but the cleaning function is not strong, and it is easy to cause combustion when used in large doses. increase in chamber deposits

[0004] In modern automobile technology, electronic fuel injection system (PFI) has completely replaced carburetor cars, and gasoline direct injection (GDI) technology is gradually becoming popular. The fuel injectors of these engines have small apertures and high operating temperatures. It is easy to be blocked by carbon deposits, causing problems such as poor atomization, poor oil supply, increased fuel consumption, and worsened emissions.

With the development of modern engine technology, the application of turbocharging and waste recirculation systems is becoming more and more extensive, the heat load of the engine is increasing, and the deposit problem of the engine intake valve is becoming more and more serious. The intake valve deposits cause The cylinder is not tightly sealed, resulting in the leakage of the engine mixture, the decrease of cylinder pressure, and the reduction of power, which seriously affects the fuel economy, power and environmental protection of the engine, and reduces the overall performance of the engine.

Improper use of ordinary gasoline detergents will also lead to an increase in engine combustion chamber deposits. The obvious increase in the total deposits in the gasoline engine combustion chamber will increase the compression ratio of the engine and make it difficult to dissipate heat, which will lead to a high temperature of the gas at the end of compression in the combustion chamber. As the octane number increases, the octane number requirement (ORI) increases, and in severe cases, the mechanical interference between the piston top and the cylinder head will increase, resulting in "carbon knocking", which will eventually lead to increased engine fuel consumption and worsened emissions

[0005] Since most of the cars do not use detergents, there are generally clogged fuel nozzles in the current cars, carbon deposits in the intake valves seriously affect the air intake and sealing, and the increase in combustion chamber deposits leads to knocking and other faults. Detergents cannot clean the serious carbon deposits that have been formed. These faults usually need to be disassembled and cleaned in the car repair shop. The construction period is long and the cost is high, which has a certain impact on the overall performance of the engine.

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