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Medium speed engine oil composition and application thereof

A technology of composition and engine oil, which is applied in lubricating compositions, petroleum industry, etc., can solve the problems of medium-speed engine oil detergency, anti-oxidation and water separation performance, etc., achieve excellent detergency, overcome poor detergency, and improve performance Effect

Inactive Publication Date: 2019-01-04
CHINA PETROLEUM & CHEM CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is that the medium-speed engine oil in the prior art has insufficient detergency, oxidation resistance, and water separation performance, and a new medium-speed engine oil composition is provided

Method used

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  • Medium speed engine oil composition and application thereof
  • Medium speed engine oil composition and application thereof

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Experimental program
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Effect test

Embodiment 1

[0039] Comparative Example 1, Comparative Example 2, and Comparative Example 3 in Table 1 respectively correspond to the same series of Kunlun commercial medium-speed motor oil, commercial ExxonMobil medium-speed motor oil, and commercial Chevron medium-speed motor oil.

[0040] Table 1

[0041]

[0042] The crankcase simulation test method, the lubricating oil oxidation induction period measurement method, and the marine oil-water separability measurement method were used to investigate the high-temperature cleaning performance, antioxidant performance, and water separation performance of the oil. The comparison results are shown in Table 2.

[0043] Crankcase simulation test method (QZX method) (SH / T 0300): The less the coking amount of the coking plate, the better the high temperature cleaning performance of the oil.

[0044] Lubricating oil oxidation induction period measurement method (pressure differential scanning calorimetry) (SH / T 0719): The longer the oxidation induction per...

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Abstract

The invention relates to a medium speed engine oil composition and application thereof, and aims at solving the existing defects of clearing performance, oxidation performance and water separation performance of medium speed engine oil in the prior art. The composition comprises, by weight, a) 10-90 parts of class II base oil, b) 0.5-40 parts of class I bright stock, c) 0.5-8 parts of clearing agent, d) 0.2-8 parts of dispersing agent, e) 0.1-4 parts of antioxidant, f) 0.1-4 parts of anti-wear agent and g) 0.01-3 parts of anti-foaming agent. The medium speed engine oil composition can be usedfor the lubricating and sealing of four-stroke cycle medium speed cylindrical piston diesel engine.

Description

Technical field [0001] The invention relates to a medium-speed engine oil composition and its use. Background technique [0002] The medium-speed cylindrical piston engine can be used for ship main engine, auxiliary engine, power generation and train traction applications, and the speed range is 300-1000rpm. Medium-speed cylindrical piston diesel engine oil (TPEO) is used for crankcase and cylinder lubrication. It can lubricate all the main moving parts of the engine, that is, the lubrication and sealing of the main bearing and the big end bearing of the connecting rod, and the camshaft. [0003] With the changes in the base oil market demand, the output of Type I base oils is decreasing year by year, and the market share of Type II hydrogenated base oils is increasing year by year. At present, medium-speed engine oil products on the market all use Type I base oils and compounding agents. Become. Compared with Type I base oils, Type II base oils have better oxidation resistance a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10N40/25C10N30/04C10N30/10
CPCC10M169/04C10M2207/144C10M2215/086C10M2215/28C10M2219/068C10M2219/087C10M2223/045C10N2030/04C10N2030/10C10N2030/26C10N2040/252
Inventor 占志恒郑金花李旭林志鹏秦振清马旭馨
Owner CHINA PETROLEUM & CHEM CORP