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High-power liquid fuel composition for spark-ignition engines

a high-power, fuel-based technology, applied in the petroleum industry, liquid carbonaceous fuels, fuels, etc., can solve the problems of nitromethane, like nitroparaffins, now prohibited, damage to the engine, etc., to improve the power of the naturally-aspirated or turbocharged spark-ignition engine during combustion, and improve the performance of the fuel composition. , the effect of improving the power of the spark-ignition engin

Inactive Publication Date: 2015-01-08
TOTAL MARKETING SERVICES SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention is about improving the performance of petrol fuel compositions used in engines by adding a specific type of alcohol. This addition helps increase power output, range, and speed of combustion in engines, reducing the need for refueling and achieving better engine performance.

Problems solved by technology

If the octane numbers are insufficient with respect to the compression ratio applied in the engine, the knock phenomenon or fuel pre-ignition can occur, which can significantly damage the engine and dramatically reduce its performance.An optimized oxygen content.
But, nitromethane, like nitroparaffins, is now prohibited in the majority of motor sports competition regulations.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example

Preparation of a Competition Fuel Composition

[0070]A competition fuel composition is prepared by mixing pure chemical compounds listed in Table 1 below at ambient temperature.

TABLE 1Component (vol %)Fuel CXylene31Isooctane25Isopentane73-methyl-2-butene-1-ol8Isoprene18Ethanol5Diisobutylene6Total100

[0071]Power Test

[0072]The fuel C of the previous example as well as a competition fuel marketed by the company TOTAL Additifs & Carburants spéciaux (TACS) under the name Elf Turbo Evo underwent a power test in a 1.6 L direct-injection turbocharged petrol engine. The characteristics of the fuels C and Elf Turbo Evo are summarized in Tables 2 and 3 below.

TABLE 2Elf TurboFIA / Annexe JEvoFuel CRegulationOctane numbersRON101.7101.5 95 to 102MON88.687.885 to 90Densitykg / L at 15° C.0.7700.7650.720 to 0.785Oxygen Content% mass3.53.4 3.7 maxLead contentg / L0.013 maxSulphur Contentmg / kg62  10 max

TABLE 3Results of analysis by high-resolution gas chromatography for determiningthe percent by volume of the...

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Abstract

A high-power liquid fuel composition for spark-ignition engines is provided. The fuel composition has a RON greater than or equal to 95 and a MON greater than or equal to 85, the RON and MON values being measured according to the ASTM D 2699-86 standard or D 2700-86 standard, and includes at least one C4-C5 unsaturated alcohol. The disclosure also relates to the use of a C4-C5 unsaturated alcohol, preferably 3-methyl-2-butene-1-ol or 3-methyl-3-butene-1-ol, in a petrol fuel composition, for improving the power of a naturally-aspirated or turbocharged spark-ignition engine, during the combustion. The disclosure also relates to a process for preparing such a fuel composition.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is a National Phase Entry of International Application Serial No. PCT / EP2013 / 053792, filed on Feb. 26, 2013, which claims priority to French Patent Application Serial No. 1251766, filed on Feb. 27, 2012, both of which are incorporated by reference herein.BACKGROUND AND SUMMARY[0002]The present invention relates to liquid fuel compositions for spark-ignition engines of the petrol type, naturally-aspirated or turbocharged, and more particularly, high-power petrol fuel compositions and their use.[0003]The petrol-type fuels that can be used in naturally-aspirated or turbocharged spark-ignition engines, in particular those of motor vehicles, have octane numbers that are sufficiently high to avoid the knock phenomenon. Typically, the petrol fuels marketed in Europe, complying with the EN 228 standard, have a Motor Octane Number (MON) above 85 and a Research Octane Number (RON) of 95 as a minimum. These fuels are suitable for th...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): C10L1/182
CPCC10L1/1824C10L1/023C10L2230/22C10L1/14C10L1/1608C10L1/1852C10L2270/023
Inventor AUBRY, ROMAIN
Owner TOTAL MARKETING SERVICES SA
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