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Diester core-based lubricating oil composition for diesel engine and preparation method thereof

A lubricating oil composition and diesel engine technology, applied in the field of lubricating oil, can solve the problems of reducing the degree of engine wear and achieve the effects of reducing friction and wear, low oil consumption, and reducing sludge and carbon deposits

Inactive Publication Date: 2020-07-03
江苏拉雅科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a diesel engine lubricating oil composition based on a diester core and its preparation method, which solves the problem of high-temperature oxidation of the existing diesel engine lubricating oil composition based on a diester core , by combining the base oil with related additives to improve high-temperature oxidation resistance, and by increasing the oil film strength, improve the lubricating performance of the lubricating oil composition, good anti-wear performance, reduce sludge and carbon deposits, and effectively reduce engine wear

Method used

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  • Diester core-based lubricating oil composition for diesel engine and preparation method thereof
  • Diester core-based lubricating oil composition for diesel engine and preparation method thereof
  • Diester core-based lubricating oil composition for diesel engine and preparation method thereof

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Embodiment 1

[0033] The diesel engine lubricating oil composition based on the diester core of this embodiment is composed of the following components by weight percentage:

[0034]

[0035] The preparation method of the diesel engine lubricating oil composition based on the diester core of the present embodiment is as follows:

[0036] (1) Weigh base oil 250N and base oil 500N respectively according to the proportioning weight, put them into the blending tank, and stir for 35min at a stirring speed of 180rpm;

[0037] (2) Weigh the additive 12210 according to the proportioning weight and put it into the blending tank, and heat the blending tank temperature to 45°C;

[0038] (3) Weigh base oil 100N and ethylene-propylene rubber according to the proportioning weight, and when heated to 100°C, put them into the blending tank;

[0039] (4) Weigh pour point depressant 1-248 by weight and put it into the blending tank, and heat the blending tank to 56°C, and stir at this temperature for 2h;...

Embodiment 2

[0043] The diesel engine lubricating oil composition based on the diester core of this embodiment is composed of the following components by weight percentage:

[0044]

[0045] The preparation method of the diesel engine lubricating oil composition based on the diester core of the present embodiment is as follows:

[0046] (1) Weigh base oil 250N and base oil 500N respectively according to the proportioning weight, put them into the blending tank, and stir for 35min at a stirring speed of 180rpm;

[0047] (2) Weigh the additive 12210 according to the proportioning weight and put it into the blending tank, and heat the blending tank temperature to 45°C;

[0048] (3) Weigh base oil 100N and ethylene-propylene rubber according to the proportioning weight, and when heated to 100°C, put them into the blending tank;

[0049] (4) Weigh pour point depressant 1-248 by weight and put it into the blending tank, heat the blending tank to 58°C, and stir at this temperature for 1.8h; ...

Embodiment 3

[0053] The diesel engine lubricating oil composition based on the diester core of this embodiment is composed of the following components by weight percentage:

[0054]

[0055]

[0056] The preparation method of the diesel engine lubricating oil composition based on the diester core of the present embodiment is as follows:

[0057] (1) Weigh base oil 250N and base oil 500N respectively according to the proportioning weight, put them into the blending tank, and stir for 35min at a stirring speed of 180rpm;

[0058] (2) Weigh the additive 12210 according to the proportioning weight and put it into the blending tank, and heat the blending tank temperature to 45°C;

[0059] (3) Weigh base oil 100N and ethylene-propylene rubber according to the proportioning weight, and when heated to 100°C, put them into the blending tank;

[0060] (4) Weigh pour point depressant 1-248 by weight and put it into the blending tank, heat the blending tank to 55°C, and stir at this temperature f...

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Abstract

The invention relates to the technical field of lubricating oil, and specifically relates to a diester core-based lubricating oil composition for a diesel engine and a preparation method thereof. Thecomposition comprises the following components in percentage by weight: 60-70% of base oil 250N, 10-20% of base oil 500N accounts for, 2-3% of OCP, 12-20% of an additive, and 0.1-0.5% of a pour pointdepressant; wherein the OCP is a composition of base oil 100N and ethylene propylene rubber according to a mass ratio of 1: (0.20-0.25). The invention solves the problem of high-temperature oxidationof an existing diester core-based lubricating oil composition for a diesel engine. The high-temperature oxidation resistance is improved by matching base oil with related additives, the lubricating performance of the lubricating oil composition is improved by increasing the oil film strength, the wear resistance is good, oil sludge and deposited carbon can be reduced, the wear degree of an enginecan be effectively reduced, and meanwhile, the exhaust emission can be effectively reduced.

Description

technical field [0001] The invention relates to the technical field of lubricating oils, in particular to a diester core-based lubricating oil composition for diesel engines and a preparation method thereof. Background technique [0002] Diesel engines, as engines for commercial vehicles and construction machinery vehicles, have been constantly updated in recent years. At present, diesel engines widely use direct injection technology and turbocharging technology to increase power, and use delayed injection technology, exhaust gas recirculation technology, and piston optimization to reduce engine emissions. The application of these technologies puts forward higher requirements for the dispersion, anti-oxidation and anti-wear of diesel engine oil. [0003] As we all know, the internal temperature of the engine is very high, and the lubricating oil is inevitably oxidized during use. For engines, the oxidation process produces acids, sludge and deposits. Among them, acid cause...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10N30/10C10N30/12C10N30/08C10N30/02
CPCC10M169/048C10M2205/0225C10M2205/0245C10M2219/042
Inventor 于德龙
Owner 江苏拉雅科技有限公司
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