Lubricating oil composite
A technology of lubricating oil composition and diesel engine, applied in lubricating composition, petroleum industry, additives, etc., can solve the problem that it cannot be used as a special lubricating oil for Deutz engines, it is difficult to meet the soot dispersion performance, high temperature detergency and anti-polishing Ability, anti-oxidation and anti-wear properties, etc., to achieve excellent high temperature detergency, excellent soot dispersing performance, and improve the effect of dispersing ability
Active Publication Date: 2013-07-31
PETROCHINA CO LTD
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AI Technical Summary
Problems solved by technology
Therefore, it is difficult for the existing lubricating oil to meet the requirements of higher soot dispersion performance, high temperature detergency, anti-polishing ability, anti-oxidation and anti-wear performance
[0003] Chinese invention patents CN1523086 and CN1523090 respectively report the patented technology of developing API CD and API CF4 diesel engine oil through the combination of additives such as detergent and dispersant, anti-oxidant and anti-wear agent, but this technology does not involve the dispersion of Mack T8E soot by Deutz engine Test bench, HTCBT high temperature corrosion performance evaluation, program IIIE oxidation evaluation test and bench evaluation of Deutz diesel engine, etc., cannot be used as special lubricant for Deutz engine
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1
[0014] Prepare a 10W / 40CH-4 diesel engine oil with all components meeting the European DEUTZ diesel engine oil requirements. The components and contents are shown in the following table:
[0015] Table 1
[0016] components
[0017] Dispersed Ethylene Propylene Copolymer
[0018] The production process of the present invention is as follows: first prepare the hydrogenated base oil, add the pour point depressant into the small blending tank according to the amount in Table 1, pump in an appropriate amount of base oil to dilute and stir, heat up to 70-80°C, and wait for the pour point depressant After complete miscibility, add the viscosity index improver according to the amount in Table 1, and continue stirring at constant temperature until it is completely dissolved. Then, pump the prepared hydrogenated base oil into the large blending tank, control the temperature at 60-70°C, and continue stirring until the mixture is uniform. Add various additives to the...
Embodiment 3
[0024] table 3
[0025] components
[0026] T901 Antifoaming agent
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Abstract
The invention relates to a lubricating oil composite comprising the components in percentage by weight: 2.0-10.0% of high-temperature detergent, 2.0-10.0% of ashless dispersant, 0.2-2.0% of antioxidant antiwear agent, 0.5-3.0% of auxiliary antioxidant, 0.1-0.8% of pour point depressant, 5.0-10.0% of viscosity index improver, 0.0015-0.0025% of anti-foaming agent and the balance of hydrogenation technology base oil. The lubricating oil composite has the characteristics of easy obtaining of raw material, simple production technology and convenient modulation, can furthest reduce faults of a diesel engine due to lubrication, prolongs the service life of the engine and has excellent soot disperse property; oil shows excellent high-temperature detergency, polishing property resistance and the effects of antioxidant and thickening by optimizing the high-temperature detergency and the antioxidant antiwear agent. The main property reaches ACEA E4 and API CH4 quality grades and satisfies the oil consumption requirements of DEUTZ diesel engines.
Description
technical field [0001] The invention relates to a lubricating oil composition, in particular to a lubricating oil composition suitable for heavy-duty, high-speed four-stroke diesel engines, whose main performance reaches ACEA E4 and API CH4 quality grades. Background technique [0002] At present, many diesel engine technologies introduced in China come from Europe. European diesel engines mainly adopt the ACEA specification formulated by the European Automobile Manufacturers Association. The amount of carbon deposit is small, the gap between the top ring bank and the cylinder is small, the amount of blow-by gas is small, the piston is easy to keep clean, the power loss is small, and the service life of the lubricating oil is long. However, if sediment or carbon deposits fall between the top ring bank and the cylinder liner, the pressure-bearing surface of the piston can easily compact it, and after repeated up and down operations, it is easy to wear off the surface of the c...
Claims
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IPC IPC(8): C10M141/08C10M157/08C10M169/06C10N40/00C10N30/10C10N30/06C10N30/04
Inventor 刘功德王泽恩翟月奎佘海波丁元庆张长和
Owner PETROCHINA CO LTD