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Burnup saving type engine oil composition

A composition and engine oil technology, which is applied in lubricating compositions, petroleum industry, base materials, etc., can solve the problems of increased wear and increased evaporation loss of engine oil, etc., and achieves less evaporation loss, good low-temperature viscosity characteristics, and fuel economy. Good results

Inactive Publication Date: 2009-09-02
JAPAN ENERGY CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, regarding the further lowering of the viscosity, it is known that the lowering of the viscosity in the high temperature range leads to an increase in wear, and the lowering of the viscosity in the low temperature range requires further lowering of the base oil viscosity, so the evaporation loss of the engine oil increase

Method used

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  • Burnup saving type engine oil composition
  • Burnup saving type engine oil composition
  • Burnup saving type engine oil composition

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Embodiment

[0053] Hereinafter, the present invention will be specifically described through examples.

[0054] As the mineral oil base oil, the kinematic viscosity at 100°C obtained by hydrodewaxing the product oil obtained by the hydrocracking of heavy oil is 4.3 mm. 2 / s base oil.

[0055] As a dicarboxylic acid diester having a molecular weight of 400 to 450 represented by the general formula (1) (hereinafter referred to as the diester of the present invention), the kinematic viscosity at 100°C is 3.2mm 2 / s, dioctyl sebacate with a molecular weight of 426.

[0056] In addition, as a comparative diester that does not satisfy the diester of the present invention, a kinematic viscosity at 100°C of 3.6 mm was used. 2 / s, diisodecyl adipate with a molecular weight of 426, the kinematic viscosity at 100°C is 2.3mm 2 / s, dioctyl adipate with a molecular weight of 370 and a kinematic viscosity of 3.4mm at 100°C 2 / s of trimethylolpropane (TMP) enanthate.

[0057] As additives, the follo...

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Abstract

The present invention provides a burnup saving type engine oil with superior low vaporability and low temperature viscosity property. The burnup saving type engine oil composition comprises mineral oil and / or synthetic oil lubricating oil based oil and organic molybdenum compound, the lubricating oil based oil contains 30% by mass of dicarboxylic diester with molecular weight of 400 to 450 represented by the formula (I), the content of the organic molybdenum compound is measured by the mass of Mo, over 0.03%. In the formula, R<1> and R<2> respectively and independently represent alkyl with 1 to 16 carbon atoms, and R<3> represents bivalent alkyl with 6 to 10 carbon atoms.

Description

technical field [0001] The present invention relates to a fuel-efficient engine oil comprising a lubricating base oil containing a specific diester and an organic molybdenum compound, and relates to a fuel-efficient engine oil having good environmental performance due to low evaporation and good low-temperature viscosity characteristics. Background technique [0002] In recent years, in order to prevent global warming, improve the fuel consumption characteristics of automobiles and suppress CO 2 The calls for emissions are high. In order to improve the fuel consumption characteristics of automobiles, it is important to increase the efficiency of the engine, and the technologies of lean burn and direct injection are adopted in gasoline engines. On the other hand, reducing the friction of the engine is also conducive to the improvement of fuel consumption characteristics, so the method of using low-friction materials for sliding parts or using fuel-saving oil is adopted. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10M101/00C10M105/36C10M111/00C10M141/10C10M135/18C10M137/06
Inventor 吉田悟内藤康司
Owner JAPAN ENERGY CORP
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