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Enhanced marine engine lubricating oil

A marine engine and lubricating oil technology, applied in lubricating compositions, petroleum industry, etc., can solve problems such as air leakage, cylinder scuffing, piston ring sticking, oil pollution, etc., and achieve lower oil-fuel ratio, lower oil consumption rate, lower The effect of fuel consumption

Inactive Publication Date: 2017-04-26
广西北海玉柴马石油高级润滑油有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The temperature of the piston ring groove of a marine diesel engine can be as high as 250°C. Oil oxidation products, fuel incomplete combustion products, and products after neutralizing acidic substances will deposit on the surface of the piston and in the ring groove. In severe cases, the piston ring will stick or even break. , causing air leakage and cylinder scuffing
At the same time, these deposits will also enter the crankcase along the cylinder wall, causing oil pollution.
In addition, the oil cooling the piston will also be oxidized or thermally cracked on the top of the piston cavity due to high temperature, resulting in carbon deposits, which will affect heat transfer and cause the piston to burn out in severe cases

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] An enhanced marine engine lubricating oil, consisting of the following components by weight: 40 parts of 150N base oil, 30 parts of 500N base oil, 10 parts of PAO 6 base oil, 13 parts of composite additives, and 1.36 parts of base value reinforcing agent , 0.70 parts of tackifier and 5×10 antifoaming agent -6 share.

[0022] The 150N base oil is API II hydrogenated naphthenic base oil; the 500N base oil is API II hydrogenated naphthenic base oil; the PAO 6 is API IV polyalphaolefin synthesis Base oil; As preferably, described composite additive is made of highly refined mineral oil (C15-C50), sulfurized branched chain alkyl phenate calcium, alkyl dithiophosphate zinc, alkyl phenol ester, alkaryl amine, long Alkylaryl sulfonate calcium and branched chain alkyl phenate calcium, the mass ratio is 45:15:15:10:8:5:2; the alkali value reinforcing agent is high alkali value calcium sulfonate The base number is 260mgKOH / g; the tackifier is an ethylene-propylene copolymer visc...

Embodiment 2

[0024] An enhanced marine engine lubricating oil, consisting of the following components by weight: 45 parts of 150N base oil, 34 parts of 500N base oil, 10 parts of PAO 6 base oil, 13.5 parts of composite additives, and 1.60 parts of base value reinforcing agent , 0.78 parts of tackifier and 10×10 antifoaming agent -6 share.

[0025] The 150N base oil is API II hydrogenated naphthenic base oil; the 500N base oil is API II hydrogenated naphthenic base oil; the PAO 6 is API IV polyalphaolefin synthesis Base oil; As preferably, described composite additive is made of highly refined mineral oil (C15-C50), sulfurized branched chain alkyl phenate calcium, alkyl dithiophosphate zinc, alkyl phenol ester, alkaryl amine, long Alkylaryl sulfonate calcium and branched chain alkyl phenate calcium, the mass ratio is 45:15:15:10:8:5:2; the alkali value reinforcing agent is high alkali value calcium sulfonate The base number is 290mgKOH / g; the tackifier is an ethylene-propylene copolymer v...

Embodiment 3

[0027] An enhanced marine engine lubricating oil, consisting of the following components by weight: 43 parts of 150N base oil, 32 parts of 500N base oil, 10 parts of PAO 6 base oil, 13.3 parts of composite additives, and 1.5 parts of base value reinforcing agent , 0.72 parts of tackifier and 8×10 antifoaming agent -6 share.

[0028] The 150N base oil is API II hydrogenated naphthenic base oil; the 500N base oil is API II hydrogenated naphthenic base oil; the PAO 6 is API IV polyalphaolefin synthesis Base oil; As preferably, described composite additive is made of highly refined mineral oil (C15-C50), sulfurized branched chain alkyl phenate calcium, alkyl dithiophosphate zinc, alkyl phenol ester, alkaryl amine, long Alkylaryl sulfonate calcium and branched chain alkyl phenate calcium, the mass ratio is 45:15:15:10:8:5:2; the alkali value reinforcing agent is high alkali value calcium sulfonate The base number is 280mgKOH / g; the tackifier is an ethylene-propylene copolymer vis...

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PUM

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Abstract

The invention belongs to the technical field of lubricating oil research and development, and particularly relates to enhanced marine engine lubricating oil which comprises, by weight, 40-45 parts of 150N base oil, 30-34 parts of 500N base oil, 10 parts of PAO 6 base oil, 13-13.5 parts of composite additives, 1.36-1.60 parts of alkali value reinforcing agents, 0.70-0.78 parts of thickening agent and 5-10*10<6> parts of anti-foaming agents. The enhanced marine engine lubricating oil can improve suitable alkali value, and the alkali value ranges from 12.5 to 13.0. The enhanced marine engine lubricating oil can greatly reduce engine oil consumption of oil products, fuel oil rate of engine oil and consumption rate of the engine oil, cost is saved for users, and economic benefits are improved.

Description

technical field [0001] The invention belongs to the technical field of lubricating oil research and development, in particular to an enhanced marine engine lubricating oil. Background technique [0002] In recent years, my country has advanced from a big shipping country to a shipping powerhouse. With the rapid growth of my country's shipping industry, the development of ports and ships in the direction of large-scale, specialization and higher technology has been accelerated, and the output of port machinery and shipbuilding has also increased, and the demand for marine lubricants has continued to increase. [0003] Marine diesel engines are mainly divided into two types: low-speed crosshead two-stroke engines and medium-speed cylindrical piston engines. There are mainly three types of marine oil used, namely cylinder oil, system oil (for low-speed crosshead engines) and medium-speed Motor oil (for medium speed barrel engines). From the perspective of lubricating oil clas...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10N40/25
CPCC10M169/044C10M2203/1006C10M2203/1065C10M2205/0206C10M2205/022C10M2205/024C10M2207/023C10M2207/28C10M2215/26C10M2219/02C10M2219/044C10M2219/046C10M2223/065C10M2229/041C10N2010/04C10N2030/52C10N2030/72C10N2040/252
Inventor 叶小娟邓冰宋云刚
Owner 广西北海玉柴马石油高级润滑油有限公司
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