Lubricating oil for diesel engines

A lubricating oil and diesel engine technology, applied in the field of lubricating oil, can solve the problems of reduced PM removal efficiency, shortened DPF life, reduced ash content, etc., and achieves the effects of reducing environmental burden, good cleaning and dispersibility, and good wear resistance

Inactive Publication Date: 2015-08-12
马健
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Diesel particulate filters (hereinafter referred to as DPF) are considered to be an effective method for removing particulate matter (hereinafter referred to as PM) from diesel engine exhaust gas, but they may experience filter the jam
For example, it is known that ash derived from diesel oil will accumulate in DPF, which will lead to lower PM removal efficiency and shorter DPF life, so it is considered necessary to reduce sulfated ash in diesel oil, in other words, the ash content must be reduced

Method used

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  • Lubricating oil for diesel engines
  • Lubricating oil for diesel engines
  • Lubricating oil for diesel engines

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Take the following raw materials by weight (mix evenly):

[0022]

[0023] The above-mentioned base oils are Class II lubricating oil base oils classified according to API.

[0024] The above surfactant preparation method: weigh 13 parts by weight of alkyl glucoside, 7 parts by weight of tea saponin and 23 parts by weight of sulfated castor oil, and mix them evenly.

[0025] The above antioxidant preparation method: weigh a mixture of 20 parts by weight of p-diisooctyl diphenylamine and 23 parts by weight of 2,6-di-tert-butyl-4-methylphenol, and mix evenly.

[0026] The preparation method of the above detergent: weigh the mixture of 18 parts by weight of polyisobuteneamine and 18 parts by weight of polyetheramine, and mix them evenly.

[0027] The preparation method of the above-mentioned corrosion inhibitor: weigh a mixture of 15 parts by weight of 2,4-di-tert-butylphenol and 21 parts by weight of methyl isobutyrate, and mix evenly.

Embodiment 2

[0029] Take the following raw materials by weight (mix evenly):

[0030]

[0031] The above-mentioned base oils are Class I lubricating oil base oils classified according to API.

[0032] The above surfactant preparation method: weigh 10 parts by weight of alkyl glucoside, 5 parts by weight of tea saponin and 25 parts by weight of sulfated castor oil, and mix them evenly.

[0033] The above antioxidant preparation method: weigh a mixture of 22 parts by weight of p-diisooctyl diphenylamine and 20 parts by weight of 2,6-di-tert-butyl-4-methylphenol, and mix evenly.

[0034] The preparation method of the above-mentioned detergent: weigh a mixture of 20 parts by weight of polyisobutylene amine and 15 parts by weight of polyetheramine, and mix them evenly.

[0035] The preparation method of the above corrosion inhibitor: weigh a mixture of 12 parts by weight of 2,4-di-tert-butylphenol and 24 parts by weight of methyl isobutyrate, and mix them evenly.

Embodiment 3

[0037] Take the following raw materials by weight (mix evenly):

[0038]

[0039] The above-mentioned base oils are Class I lubricating oil base oils classified according to API.

[0040] The above surfactant preparation method: weigh 15 parts by weight of alkyl glucoside, 8 parts by weight of tea saponin and 20 parts by weight of sulfated castor oil, and mix them uniformly.

[0041] The above antioxidant preparation method: weigh a mixture of 17 parts by weight of p-diisooctyl diphenylamine and 25 parts by weight of 2,6-di-tert-butyl-4-methylphenol, and mix evenly.

[0042] The preparation method of the above-mentioned detergent: weigh the mixture of 15 parts by weight of polyisobutylamine and 20 parts by weight of polyetheramine, and mix them evenly.

[0043] The preparation method of the above corrosion inhibitor: weigh a mixture of 17 parts by weight of 2,4-di-tert-butylphenol and 19 parts by weight of methyl isobutyrate, and mix them evenly.

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Abstract

The invention relates to the technical field of lubricating oil, in particular to lubricating oil for diesel engines. The lubricating oil comprises, by weight, 60-80 parts of base oil, 20-30 parts of surfactants, 3-9 parts of antioxidants, 2-6 parts of polytetrafluoroethylene, 5-8 parts of cleaning agents and 6-12 parts of corrosion inhibitors. The lubricating oil has the advantages that component compatibility is high; the lubricating oil does not contain metal cleaning agents and has low ash content, high cleaning dispersity is achieved, and high cleanness of pistons of the engines can be kept; oxidation and corrosion resistance and shear stability are high, and proper viscosity of the oil can be kept when the engines are in low-temperature, high-temperature or high-shear environments; abrasion resistance is high, DPF (diesel particulate filter) blocking is prevented, and valve train abrasion is reduced; environment burdens are reduced.

Description

technical field [0001] The invention relates to the technical field of lubricating oil, in particular to a lubricating oil for diesel engines. Background technique [0002] Diesel particulate filters (hereinafter referred to as DPF) are considered to be an effective method for removing particulate matter (hereinafter referred to as PM) from diesel engine exhaust gas, but they may experience filter of the jam. For example, it is known that ash derived from diesel oil will accumulate in DPF, which will lead to lower PM removal efficiency and shorter DPF life, so it is considered necessary to reduce sulfated ash in diesel oil, in other words, the ash content must be reduced . [0003] This means that engine oils and especially diesel oils have a history of changes due to fuel changes. For example, air pollution due to particulate matter, carbon monoxide, and NOx emissions from exhaust gases is a problem, and especially the sulfur content in diesel has been rapidly reduced fr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M167/00C10M147/02C10M145/24C10M143/06C10M129/70C10M129/10C10M133/12C10M159/08C10M129/00C10N30/02C10N30/04C10N30/06C10N30/08C10N30/10C10N30/12
Inventor 马健
Owner 马健
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