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Special lubricating oil for diesel engine and preparation method thereof

A diesel engine and lubricating oil technology, applied in the field of lubricating oil, can solve the problems of not having automatic repair of wear marks, short engine maintenance cycle, large friction coefficient, etc., achieve good oxidation stability and thermal stability, and control oil viscosity Effect of growth, excellent wear resistance

Inactive Publication Date: 2017-05-17
ENG EQUIP CO LTD SUZHOU SAI SIDE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the engine lubricating oil in the prior art still has a large friction coefficient, generally above 0.1, which only has the function of lubricating and reducing wear, and does not have the ability to automatically repair wear and tear. Therefore, after the engine has been running for a certain period of time, engine wear will still occur. Serious problem, engine maintenance cycle is short, maintenance cost is high, resulting in a lot of waste of resources, which has become a worldwide problem

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036]A special lubricating oil for diesel engines provided in this embodiment, the lubricating oil comprises the following components in parts by mass: 42 parts of base oil, 13 parts of polydimethylsiloxane, 1 part of nano silicon dioxide, 5 parts of methyl citrate, 2 parts of alkyl dianiline, complex agent H8744B: 1 part, viscosity index improver OCP: 3 parts, polymethacrylate 2 parts, dialkyl dithiophosphate 2 parts, 2 parts of octylphenol, 4 parts of sulfonate detergent, 2 parts of di-n-butyl phosphite, 1 part of simethicone, 2 parts of polyisobutylene pentaerythritol succinate, antifoaming agent T901:1 part;

[0037] The base oil is hydrogenated mineral base oil 650SN and bright stock 150BS at a volume ratio of 5:1; the sulfonate detergent is calcium sulfonate with a base value of 380 mgKOH / g.

[0038] The preparation method of the diesel engine special lubricating oil of the present embodiment may further comprise the steps:

[0039] (1) Add nano-silica, methyl citrate,...

Embodiment 2

[0044] A special lubricating oil for diesel engines provided in this embodiment, said lubricating oil comprises the following components in parts by mass: 44 parts of base oil, 14 parts of polydimethylsiloxane, 3 parts of nano silicon dioxide, 7 parts of methyl citrate, 5 parts of alkyl dianiline, 2 parts of compounding agent H8744B, 4 parts of viscosity index improver OCP, 3 parts of polymethacrylate, 3 parts of dialkyl dithiophosphate, 4 parts of octylphenol, 6 parts of sulfonate detergent, 4 parts of di-n-butyl phosphite, 2 parts of dimethyl silicone oil, 4 parts of polyisobutylene pentaerythritol succinate, antifoaming agent T901: 2 parts;

[0045] The base oil is hydrogenated mineral base oil 650SN and bright stock 150BS at a volume ratio of 5:1; the sulfonate detergent is calcium sulfonate with a base value of 390 mgKOH / g.

[0046] The preparation method of the diesel engine special lubricating oil of the present embodiment may further comprise the steps:

[0047] (1) A...

Embodiment 3

[0052] A special lubricating oil for diesel engines provided in this embodiment, said lubricating oil comprises the following components in parts by mass: 46 parts of base oil, 16 parts of polydimethylsiloxane, 4 parts of nano silicon dioxide, 9 parts of methyl citrate, 6 parts of alkyl diphenylamine, 3 parts of complex agent H8744B, 5 parts of viscosity index improver OCP, 5 parts of polymethacrylate, 4 parts of dialkyl dithiophosphate, 5 parts of octylphenol, 7 parts of sulfonate detergent, 6 parts of di-n-butyl phosphite, 3 parts of dimethyl silicone oil, 5 parts of polyisobutylene pentaerythritol succinate, antifoaming agent T901: 3 parts;

[0053] The base oil is hydrogenated mineral base oil 650SN and bright stock 150BS in a volume ratio of 5:2; the sulfonate detergent is calcium sulfonate with a base value of 400 mgKOH / g.

[0054] The preparation method of the diesel engine special lubricating oil of the present embodiment may further comprise the steps:

[0055] (1) A...

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Abstract

The invention discloses special lubricating oil for a diesel engine. The special lubricating oil is prepared from the following components in parts by mass: base oil, polydimethylsiloxane, nanometer silicon dioxide, methyl ciTCMLIBate, alkyl diphenylamine, a compounding agent H8744B, a viscosity index modifier OCP, polymethyl methacrylate, dialkyl dithiophosphate, octyl phenol, a sulfonate detergent, di-n-butyl phosphate, dimethicone, polyisobutylene butane diacid pentaerythritol ester, and an anti-foaming agent T901. The special lubricating oil for the diesel engine has the advantages that the high-property engine lubricating oil designed by the researched special new technique formula is adopted for the high-load diesel engine with the characteristics of long-time running, complicated condition, heavy heat load, and frequent replacing of diesel from different areas; the high-temperature cleaning property and dispersing property are excellent, the piston ring adhering and cylinder sleeve polishing caused by the fuel direct spraying technique are effectively prevented, and the high cleanliness of the engine is maintained; compared with the common pressurizing diesel oil, the oxidizing safety and heat stability are higher.

Description

technical field [0001] The invention relates to a lubricating oil and a processing technology thereof, in particular to a special lubricating oil for diesel engines and a preparation method thereof, belonging to the technical field of lubricating oil. Background technique [0002] When the engine is working, many transmission parts make high-speed relative motion in a small gap, such as crankshaft main journal and main bearing, crank pin and connecting rod bearing, cam journal and cam bearing, piston, piston ring and cylinder wall, The movement pairs of the gas distribution mechanism and the transmission gear pairs, etc. Although the working surfaces of these parts are finely machined, they are uneven when viewed under magnification. If these surfaces are not lubricated, intense friction will occur between them. The dry friction between the metal surfaces not only increases the power consumption of the engine and accelerates the wear of the working surface of the parts, bu...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10N40/25C10N30/06C10N30/04C10N30/10C10N30/08
CPCC10M169/048C10M2201/10C10M2207/023C10M2207/282C10M2209/084C10M2215/064C10M2219/046C10M2223/047C10M2223/049C10M2229/041C10N2030/06C10N2030/08C10N2030/10C10N2040/252C10N2010/04
Inventor 顾建强钱燕华
Owner ENG EQUIP CO LTD SUZHOU SAI SIDE
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