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Lubricating composition comprising a diester

A lubricating composition and composition technology, applied in the direction of lubricating compositions, base materials, additives, etc., can solve problems such as lubricant non-compliance, and achieve the effect of reducing fuel consumption and combustion consumption

Active Publication Date: 2020-05-01
TOTAL MARKETING SERVICES SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In addition, some monoesters used in lubricants are solid at ambient temperature, which brings about the problem of cold pumpability of lubricants, and these lubricants do not meet the standards of SAEJ300

Method used

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  • Lubricating composition comprising a diester
  • Lubricating composition comprising a diester
  • Lubricating composition comprising a diester

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0221] Physicochemical Characterization of Lubricating Compositions According to the Invention and Comparative Compositions

[0222] Tables 2 and 3 below show details of lubricating compositions according to the invention and comparative compositions and their physicochemical properties.

[0223] The lubricating composition is obtained by simply mixing the following ingredients at ambient temperature:

[0224] - Base oil 1 is a base oil of group III (kinematic viscosity at 100°C measured according to standard ASTM D-556 = 4.11 mm 2 / s), for example available from SK under the trade name "Yubase4+",

[0225] - Base oil 2 is a base oil of group III (kinematic viscosity at 100°C measured according to standard ASTM D-556 = 6mm 2 / s), for example commercially available from SK Corporation under the trade name "Yubase6",

[0226] - a conventional additive package (paquet) 1 comprising dispersants, detergents, antiwear additives,

[0227] - Regular Additive Pack 2,

[0228] - ...

Embodiment 2

[0241] Characterization of Compositions According to the Invention and Comparative Compositions in terms of Fuel Economy ("Fuel-Eco")

[0242] The test was carried out with the aid of an EB 1.2L Turbo engine with a power of 81kW at 5500rpm, driven by a generator which enables the application of a rotational speed of 900-4500rpm, and a torque sensor which enables the measurement of the movement by components in the engine resulting frictional torque. For each regime and each temperature, the frictional torque induced by the test lubricant was compared with the torque induced by the reference lubricant composition (SAE 0W30).

[0243] The conditions of this test are as follows.

[0244] The tests are carried out in the following order:

[0245] - flushing of the engine with a flushing oil containing detergent additives, followed by a reference lubricating composition;

[0246] - Measurement of frictional torque at four different temperatures indicated below on an engine usi...

Embodiment 3

[0262] Characterization of Compositions According to the Invention and Comparative Compositions in terms of Fuel Economy ("Fuel-Eco")

[0263] The test was carried out with the aid of a Nissan HR12DDR engine with a power of 180kW at 6500rpm, driven by a generator that enables the application of rotational speeds from 1000-4400rpm, and a torque sensor that enables the measurement of torque generated by the movement of components in the engine frictional torque. For each operating condition and each temperature, the friction torque induced by the test lubricant was compared to the average torque induced by the reference lubricant composition (SAE 0W16), which was evaluated before and after the test lubricant.

[0264] The conditions for this test are as follows.

[0265] The tests are carried out in the following order:

[0266] - flushing of the engine with a flushing oil containing detergent additives, followed by a reference lubricating composition;

[0267] - Measuremen...

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Abstract

The present invention relates to the field of lubricating compositions for motor vehicles. The lubricating composition according to the invention is graded according to the SAE J300 classification defined by the formula (X)W(Y), wherein X represents 0 or 5; and Y represents an integer between 4 and 20; and comprises at least one diester of formula (I): Ra-C(O)-O-([C(R)2]n-O)s-C(O)-Rb. The invention also relates to the use of such a composition as an engine lubricant, in particular for a vehicle engine, in order to reduce the fuel consumption of the engine and to improve engine cleanliness.

Description

technical field [0001] The present invention relates to the field of lubricating compositions for engines, especially for motor vehicle engines. In particular, the present invention aims to provide a lubricating composition with improved properties, especially with regard to improved engine cleanliness and reduced fuel consumption. Background technique [0002] Lubricating compositions, also known as "lubricants," are commonly used in engines with the primary purpose of reducing friction between the various metal parts that move in the engine. In addition, they are effective in preventing premature wear and even damage to these components, especially to their surfaces. [0003] For this purpose, lubricating compositions classically consist of a base oil, usually in combination with various additives, said additives being dedicated to stimulating the lubricating properties of the base oil (eg friction modifying additives), but also providing additional properties. For examp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M129/74C10M105/38
CPCC10M105/38C10M129/74C10M2207/283C10M2207/2835C10M2205/06C10M2209/084C10M2215/06C10M2227/066C10N2020/02C10N2030/04C10N2030/08C10N2030/02C10N2030/54C10N2030/74C10N2040/25C10M101/00C10M107/00C10N2030/06C10N2030/10C10N2030/18C10N2070/00
Inventor N·尚帕涅G·罗比诺
Owner TOTAL MARKETING SERVICES SA
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