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CF-4 grade diesel engine oil composition and application thereof

An oil composition, CF-4 technology, applied in the direction of lubricating composition, petroleum industry, etc., can solve the problem of not meeting the requirements of engine oil, and achieve the effect of good oxidation resistance

Active Publication Date: 2015-09-23
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the development of diesel engine technology, CD grade diesel engine oil, which is lower than CF grade, cannot meet the oil requirements of some engines

Method used

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  • CF-4 grade diesel engine oil composition and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～7

[0037] Various formulations of CF-415W-40 were prepared by using detergent, dispersant, antioxidant, thickener, pour point depressant, antifoaming agent, and HVI base oil as raw materials. The composition of each formulation is shown in Table 1. The above mixture was heated and stirred at 55°C for 1 hour until completely homogeneous.

[0038] The following simulation tests were used to investigate the performance of the oil product: the oxidation induction period was used to examine the oxidation resistance of the oil product, the longer the time, the better the anti-oxidation performance of the oil product; The smaller the oil, the better the anti-wear performance of the oil; the coke plate test examines the cleanliness of the oil, the less the coke weight, the better the cleanliness of the oil; the soot dispersibility test examines the dispersibility of the oil, and the viscosity increases The smaller the ratio, the better the oil dispersion.

[0039] The specific results o...

Embodiment 8

[0041] The formula described in [Example 7] was subjected to each bench test specified in GB11122-2006CF-4 quality level, and the bench test results are shown in Table 3.

[0042] Table 1 Table 2

[0043] table 3

[0044]

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Abstract

The invention relates to a CF-4 grade diesel engine oil composition and uses thereof The CF-4 grade diesel engine oil composition includes the following components: by weight, a) 1-10 parts of a detergent; b) 1-15 parts of a dispersant; c) 1-10 parts of an antioxidant; d) 0-20 parts of a thickener; e) 0.03-2 parts of a pour point depressant; f) 0.01-1 part of an antifoaming agent; and h) 50-88 parts of base oil; in the technical scheme, the calcium content in the CF-4 grade diesel engine oil composition is not less than 2000 ppm, and the total content of calcium and magnesium is not less than 2700 ppm, the nitrogen content is not less than 500 ppm, and the technical scheme can meet the GB11122-2006 CF -4 quality grade requirement, and can be used in industrial production of the CF-4 grade diesel engine oil composition.

Description

technical field [0001] The invention relates to a CF-4 grade diesel engine oil composition and its application. Background technique [0002] With the development of diesel engine technology, CD grade diesel engine oil, which is lower than CF grade, cannot meet the oil requirements of some engines. Compared with CD-grade oil, CF-4 has better high-temperature oxidation resistance, detergency and dispersibility and anti-wear performance, which ensures engine cleanliness under various fuel conditions, effectively prevents piston rings from sticking and prolongs engine operating life, and is especially suitable for Engines with complex fuel (such as high sulfur content) and low-speed high-torque output conditions, such as military or civilian diesel engines such as generator sets, bulldozers, excavators, mining equipment, and armored transport vehicles. [0003] The GB11122-2006 standard stipulates that CF-4 engine oil must pass the L-38 engine test bearing corrosion test, Cate...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M169/04C10M169/00C10N40/25
Inventor 王亚萍杨慧青郑金花侯仲淼蒋辰婕秦振清马旭馨
Owner CHINA PETROLEUM & CHEM CORP
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