CN110016380A - Diesel engine oil composition - Google Patents

Diesel engine oil composition Download PDF

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Publication number
CN110016380A
CN110016380A CN201810015292.4A CN201810015292A CN110016380A CN 110016380 A CN110016380 A CN 110016380A CN 201810015292 A CN201810015292 A CN 201810015292A CN 110016380 A CN110016380 A CN 110016380A
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diesel engine
engine oil
oil composition
composition according
component
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CN201810015292.4A
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CN110016380B (en
Inventor
郭鹏
金鹏
汤仲平
徐小红
赵正华
王欣
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China Petroleum and Natural Gas Co Ltd
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China Petroleum and Natural Gas Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
    • C10M169/04—Mixtures of base-materials and additives
    • C10M169/044—Mixtures of base-materials and additives the additives being a mixture of non-macromolecular and macromolecular compounds
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
    • C10M2205/022—Ethene
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    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
    • C10M2205/024—Propene
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
    • C10M2205/028—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/14—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to carbon atoms of six-membered aromatic rings
    • C10M2207/144—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to carbon atoms of six-membered aromatic rings containing hydroxy groups
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    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28—Esters
    • C10M2207/287—Partial esters
    • C10M2207/289—Partial esters containing free hydroxy groups
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    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/08—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type
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    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
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    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
    • C10M2215/064—Di- and triaryl amines
    • C—CHEMISTRY; METALLURGY
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    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/08—Amides
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    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/086—Imides
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    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
    • C10M2219/044—Sulfonic acids, Derivatives thereof, e.g. neutral salts
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    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/06—Thio-acids; Thiocyanates; Derivatives thereof
    • C10M2219/062—Thio-acids; Thiocyanates; Derivatives thereof having carbon-to-sulfur double bonds
    • C10M2219/066—Thiocarbamic type compounds
    • C10M2219/068—Thiocarbamate metal salts
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    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/08—Thiols; Sulfides; Polysulfides; Mercaptals
    • C10M2219/082—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms
    • C10M2219/087—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Derivatives thereof, e.g. sulfurised phenols
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    • C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
    • C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
    • C10M2223/04—Phosphate esters
    • C10M2223/045—Metal containing thio derivatives
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    • C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
    • C10M2227/09—Complexes with metals
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    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/02—Pour-point; Viscosity index
    • C—CHEMISTRY; METALLURGY
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    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/08—Resistance to extreme temperature
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    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/64—Environmental friendly compositions
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    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/72—Extended drain
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    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/25—Internal-combustion engines
    • C10N2040/252—Diesel engines

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  • Chemical & Material Sciences (AREA)
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  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)

Abstract

The invention discloses a kind of energy-saving type diesel engine fluid compositions.The lubricant oil composite includes appropriate metal detergent, ashless dispersant, oxidation and corrosion inhibitor, composite antioxidant, duplex anti-friction agent, viscosity index improver, pour-point depressant and surplus base oil.Energy-saving type diesel engine oil of the invention has low coefficient of friction, low high temperature high shear viscosity and good antiwear and energy-saving effect, and formula is simple, at low cost, and modulation is convenient.

Description

Diesel engine oil composition
Technical field
The present invention relates to lubricating oil product technical field, specifically a kind of energy-saving type diesel engine fluid composition.
Background technique
As people are increasingly strict to the attention of environmental protection and environmental regulation, diesel engine starts to march toward the energy-saving and emission-reduction stage. Being taken the lead at present by China Automotive Technology & Research Center, " the heavy-duty commercial vehicle fuel consumption limit value " drafted (phase III solicits Opinion original text) it has completed, it determines using " the year two thousand twenty fuel consumption limit value on the basis of 2015 adds tight about 15% " as totally Energy conservation object.If phase III standard is implemented, there will be weight to China environmental protection, energy-saving and emission-reduction and commercial vehicle industry development The meaning wanted.
The energy-saving and emission-reduction of diesel engine can be realized by 3 kinds of main paths: (1) real by improving engine design Existing energy-saving and emission-reduction；(2) energy-saving and emission-reduction are realized by improving fuel mass；(3) energy-saving and emission-reduction are realized by lubrication technology.Using profit Skating section realizes that the technical costs of energy-saving and emission-reduction is low, easy to accomplish, is especially to have very much by the energy-saving engine oil strictly proved One of attractive fuel-economizing means.
Energy-saving engine oil requires oil product (temperature, stress, shearing force) can keep best viscosity under various conditions, can be on side With excellent abrasion resistance when boundary lubricates.Specifically, it is the characteristics of energy-saving engine oil: (1) oil product low-viscosity (i.e. oil product With low viscosity, low high temperature high shear viscosity)；(2) oil product high viscosity indexation (multi-grade oil)；(3) oil product antifriction performance It optimizes.As country comes into effect V discharge standard of diesel engine state, energy conservation and environmental protection is the main feature of diesel engine oil development.
Patent CN105542922 reports a kind of energy-saving diesel machine oil and preparation method thereof of overlength oil drain interval, by refined Richness complexing agent separately adds antiwear additive, antioxidant preparation, and antiwear additive selects carbamic acid molybdenum.Patent CN104059736 reports one Kind Wear-resisting energy-saving environment-protection diesel engine oil, improves the abrasion resistance of oil product by the way that poly- hexafluoroethylene micro mist is added in oil product.Specially Sharp CN105820861 describes a kind of energy-saving diesel machine oil and preparation method thereof, and antiwear additive selects carbamic acid molybdenum.Patent CN104232269 describes one kind I. C. engine oil containing molybdenum and the preparation method and application thereof, and indoles and naphthyridines knot have been used in formula Structure unit and disulphide and carbamic acid molybdenum, oil product have preferable abrasion resistance.Patent CN104745278 describes one kind Diesel engine oil of environmental protection and energy saving and preparation method thereof, using nanometer boron and nanometer molybdenum as friction improver.
Patent US20140194333 describes a kind of preparation method for improving fuel economy lubricant formula, feature It is to joined alkoxyl alcohol.Patent US20120028862 reports a kind of low-viscosity diesel engine oil for improving fuel economy Lubricant oil composite.
SRV friction and wear tester and the micro- traction force tester of MTM are the evaluation common testers of lubricating oil energy-saving effect Device.The energy-efficient performance of oil product is had rated in patent US20160108336 with SRV method, is utilized in patent US20140194333 The fuel economy of MTM method evaluation oil product.
CN102277225A discloses a kind of engine oil composition, belongs to technical field of lubricating oil.It mainly contains There is following components in percentage by weight: hydrotreating base oil；1.5~3.0% SULFURIZED CALCIUM ALKYL PHENATE WITH HIGH BASE NUMBER；4.5~ 6.5% boronation polyisobutylene succinamide ashless dispersant；1.0~2.5% high and low base number calcium sulfonate detersive； 0.5~1.5% zinc dialkyl dithiophosphate；0.3~0.6% amine type auxiliary antioxidant；0.3~0.6% nitrogenous sulphur For molybdenum phosphate；0.3~0.6% phenol type antioxidant.
Compared with the existing technology, organic-molybdenum of the present invention can be decomposed gradually in the use process of oil product, can reduce oil in this way The energy-efficient effect of product selects organic-molybdenum and organic amine compound, and in this way after organic-molybdenum is decomposed, organic amine continues to play antifriction Energy-saving effect ensure that the energy-saving long-acting of oil product.What organic amine in the present invention was selected is oleyl amine or oleyl amides, It is the result for comparing test with a variety of organic amines and obtaining.The base oil that the present invention has selected high temperature high shear viscosity low, this Sample is that the energy-efficient performance of oil product is more excellent.The present invention has used low friction technology, low high temperature high shear viscosity collaboration simultaneously Effect, so that the energy-efficient performance of oil product is more excellent.The creativeness of formula system, the salicylate body for selecting high temperature detergency good System and duplex anti-friction agent collaboration, so that energy saving oil product has good long-acting energy-saving effect.
Summary of the invention
The object of the present invention is to provide a kind of energy-saving diesel engine lubricating oil composites.
The present invention provides a kind of diesel engine oil composition, including following component: on the basis of composition gross weight,
(A) metal detergent, content are 0.5~7.0%；
(B) ashless dispersant, content are 1.0~10.0%；
(C) oxidation and corrosion inhibitor, content are 0.3~3.0%；
(D) composite antioxidant, content are 0.1~2.0%；
(E) duplex anti-friction agent, content are 0.1~2.0%；
(F) viscosity index improver, content are 1.0~15.0%；
(G) pour-point depressant, content are 0.1~2.0%；
(H) base oil, content are 70.0~92.0%.
Diesel engine oil composition of the present invention, wherein the component (A) is preferably alkylsalicylate, sulfonate With the mixture of any the two or three in alkyl monosulfide phenates.
Diesel engine oil composition of the present invention, wherein the structure of the alkylsalicylate alkylsalicylate is excellent It is selected as:
R is preferably the alkyl for containing 10~20 carbon atoms in formula, and M is preferably Ca or Mg, and m, n are preferably not zero just whole Number.
Diesel engine oil composition of the present invention, wherein the structure of the alkyl monosulfide phenates is preferred are as follows:
R is preferably the alkyl for containing 10~24 carbon atoms in formula, and M is preferably Ca or Mg, and m, n, x are preferably not zero just Integer.
Diesel engine oil composition of the present invention, wherein the structure of the sulfonate is preferred are as follows:
R is preferably the alkyl for containing 14~28 carbon atoms in formula, and M is preferably Ca or Mg, and m, n are preferably not zero just whole Number.
Diesel engine oil composition of the present invention, wherein the component (B) is preferably polyisobutene succinimide class Dispersing agent.
Diesel engine oil composition of the present invention, wherein the structure of the polyisobutene succinimide is preferred are as follows:
PIB is preferably polyisobutene in formula, and molecule is preferably that 900~2500, n is preferably the positive integer being not zero.
Diesel engine oil composition of the present invention, wherein it is anti-that the component (C) is preferably zinc dialkyl dithiophosphate Oxygen anti-corrosion additive.
Diesel engine oil composition of the present invention, wherein the structural formula of the zinc dialkyl dithiophosphate is preferred are as follows:
R=C in formulanH2n+1, n=3~10.
Diesel engine oil composition of the present invention, wherein the component (D) is preferably resisted by phenol type antioxidant and amine type Oxygen agent is combined, and calculates in mass ratio, phenol type antioxidant: amine type antioxidant is preferably 2:1；
Wherein the phenol type antioxidant is preferably 3- (3,5- di-tert-butyl-hydroxy phenyl) propionic ester, and the amine type is anti- Oxygen agent is preferably alkyl diphenylamine.
Diesel engine oil composition of the present invention, wherein the component (E) is preferably the mixing of organic-molybdenum and organic amine Object calculates in mass ratio, organic-molybdenum: organic amine 2:1；
Wherein the organic-molybdenum is preferably molybdenum dialkyl-dithiophosphate, molybdenum dialkyldithiocarbamacompositions or molybdenum amine network Object is closed, the organic amine is preferably oleyl amine or oleyl amides.
Diesel engine oil composition of the present invention, wherein the component (F) is preferably ethylene-propylene copolymer or poly- methyl-prop Olefin(e) acid ester.
Diesel engine oil composition of the present invention, wherein the component (G) is preferably poly alpha olefin or polymethyl Acid esters.
Diesel engine oil composition of the present invention, wherein the component (H) preferably has low high temperature high shear glutinous Degree.
The present invention can be with details are as follows:
Energy-saving diesel engine lubricating oil composite provided by the invention, on the basis of composition gross weight, by with the following group It is grouped as:
(A) metal detergent, content are 0.5~7.0%；(B) ashless dispersant, content are 1.0~10.0%；(C) resist Oxygen anti-corrosion additive, content are 0.3~3.0%；(D) composite antioxidant, content are 0.1~2.0%；(E) duplex anti-friction agent, content are 0.1~2.0%；(F) viscosity index improver, content are 1.0~15.0%；(G) pour-point depressant, content are 0.1~2.0%；(H) Base oil, content are 70.0~92.0%.
Component (A) metal detergent, can be alkylsalicylate or alkyl monosulfide phenates or sulfonate or any of the above The mixture of the two or the mixture of three；
The structure of alkylsalicylate are as follows:
R is the alkyl containing 10~20 carbon atoms in formula, and M is Ca or Mg, and m, n are the positive integer being not zero.
The structure of alkyl monosulfide phenates are as follows:
R is the alkyl containing 10~24 carbon atoms in formula, and M is Ca or Mg, and m, n, x are the positive integer being not zero.
The structure of sulfonate are as follows:
R is the alkyl containing 14~28 carbon atoms in formula, and M is Ca or Mg, and m, n are the positive integer being not zero.
Component (B) ashless dispersant is polyisobutene succinimide；
The structure of polyisobutene succinimide are as follows:
PIB is polyisobutene in formula, and molecule is that 900~2500, n is the positive integer being not zero.
Component (C) oxidation and corrosion inhibitor is zinc dialkyl dithiophosphate；
The structural formula of zinc dialkyl dithiophosphate are as follows:
R=C in formulanH2n+1, n=3~10.
Component (D) composite antioxidant is the mixture of phenol type antioxidant and amine type antioxidant, is calculated in mass ratio, and phenolic is anti- Oxygen agent: amine type antioxidant is 2:1.Wherein phenol type antioxidant is 3- (3,5- di-tert-butyl-hydroxy phenyl) propionic ester, and amine type is anti- Oxygen agent are as follows: alkyl diphenylamine.
Component (E) duplex anti-friction agent is the mixture of organic-molybdenum and organic amine, is calculated in mass ratio, organic-molybdenum: organic amine For 2:1.Wherein organic-molybdenum is molybdenum dialkyl-dithiophosphate, molybdenum dialkyldithiocarbamacompositions or molybdenum amine complex.It is organic Amine is oleyl amine or oleyl amides.
Component (F) viscosity index improver is ethylene-propylene copolymer or polymethacrylates；
Component (G) pour-point depressant is poly alpha olefin or polymethacrylates；
Component (H) base oil is the low hydrogenated base oil of high temperature high shear viscosity；
Component (A) accounts for the 0.5~7.0% of composition gross weight, and preferred optimum range is 2.0~6.0%.
Component (B) accounts for the 1.0~10.0% of composition gross weight, and preferred optimum range is 2.0~9.0%.
Component (C) accounts for the 0.3~3.0% of composition gross weight, and preferred optimum range is 0.5~2.5%.
Component (D) accounts for the 0.1~2.0% of composition gross weight, and preferred optimum range is 0.2~1.8%.
Component (E) accounts for the 0.1~2.0% of composition gross weight, and preferred optimum range is 0.3~1.5%.
Component (F) accounts for the 1.0~15.0% of composition gross weight, and preferred optimum range is 2.0~12.0%.
Component (G) accounts for the 0.1~2.0% of composition gross weight, and preferred optimum range is 0.2~1.0%.
Wherein component (H) accounts for the 70.0~92.0% of composition gross weight, and preferred optimum range is 72.0~88.0%.
The good additive component of selection performance can't be fully solved required for the present invention and solve the problems, such as, the present invention utilizes The principle to interact between well-known additive component makes every effort to the performance for making each functional additive in addition to playing its own Outside advantage, make to generate stronger " synergistic effect " between each functional additive component as far as possible.Especially with duplex anti-friction agent, So that composition has low coefficient of friction, the energy-saving effect of oil product is made to reach best.
The present invention is using the methods of SRV test method, MTM test method, wear scar diameter and the test of high temperature high shear viscosity Investigate the energy-efficient performance and abrasion resistance of oil product.
When configuring oil product, it is added at one time A, B, C, D, E, F, G, H component and is sufficiently stirred at least 2 hours, until composition It is uniformly mixed, energy-saving diesel engine oil product both can be obtained.
Beneficial effects of the present invention:
1；Organic-molybdenum can be decomposed gradually in the use process of oil product, can reduce the energy-efficient effect of oil product in this way, and selection has Machine molybdenum and organic amine are compound, and in this way after organic-molybdenum is decomposed, organic amine continues to play antifriction energy-saving effect, ensure that oil product Energy-saving long-acting.
2: what the organic amine in the present invention was selected is oleyl amine or oleyl amides, is compared with a variety of organic amines Test obtained result.
3: the base oil that the present invention has selected high temperature high shear viscosity low is that the energy-efficient performance of oil product is more excellent in this way.
4: the present invention has used low friction technology, low high temperature high shear viscosity synergistic effect simultaneously, so that the section of oil product Energy performance is more excellent.
5: the creativeness of formula system, the salicylate system for selecting high temperature detergency good and duplex anti-friction agent collaboration make Obtaining energy saving oil product has good long-acting energy-saving effect.
Detailed description of the invention
Fig. 1 is energy saving oil product SRV test result；
Test oil is carried out to the investigation of energy-efficient performance, (the 15W-40 CI- of reference oil 1 on SRV4 type friction and wear tester It 4) is the diesel engine oil of famous foreign brand, reference oil 2 (15W-40 CI-4) is the diesel engine of external another money famous brand name Oil, both for commercial product.SRV test method is carried out according to Q/SY 1495.
Fig. 2 is energy saving oil product MTM test result；
Test oil is carried out to the investigation of energy-efficient performance on the micro- traction force tester of MTM2, test method is according to Q/SY RH 4044-2015 is carried out.
Specific embodiment
Elaborate below to the embodiment of the present invention: the present embodiment carries out under the premise of the technical scheme of the present invention Implement, gives detailed embodiment and process, but protection scope of the present invention is not limited to following embodiments, following implementation Test method without specific conditions in example, usually according to normal condition.
Example 1
A kind of energy-saving type diesel engine fluid composition, is calculated according to the mass fraction, and the composition and content of raw material are as follows:
Example 2
A kind of energy-saving type diesel engine fluid composition, is calculated according to the mass fraction, and the composition and content of raw material are as follows:
Example 3
A kind of energy-saving type diesel engine fluid composition, is calculated according to the mass fraction, and the composition and content of raw material are as follows:
Example 4
This example is that the energy-efficient performance of oil product is investigated, by reference and example 1,2,3 in SRV4 type friction and wear tester Coefficient of friction under upper investigation different temperatures.The relational graph of temperature and coefficient of friction is made that according to off-test, such as Fig. 1 institute Show,
It will be seen from figure 1 that energy-saving diesel machine oil of the invention has low coefficient of friction, it is good to illustrate that oil product has Energy-efficient performance.
Example 5
This example is that the energy-efficient performance of oil product is investigated, by reference and example 1,2,3 on the micro- traction force tester of MTM2 It is investigated, test result is as shown in Figure 2.
Figure it is seen that the energy saving oil product of example 1,2,3 of the invention is easier to enter stream with the increase of test speed The state of body lubrication, has embodied good antifriction energy-saving performance.
Example 6
This example is that the wear scar diameter of oil product is tested.
Table 1 is four ball milling spot diameter test results of several oil products.
It can be seen that energy saving oil product of the invention with good abrasion resistance from the test result of table 1.
Example 7
This example is that the high temperature high shear viscosity of oil product is tested.
Table 2 is the high temperature high shear viscosity test result of several oil products.
It can be seen that energy saving oil product of the invention with low high temperature high shear viscosity from the test result of table 2, illustrate it With good energy-efficient performance.

Claims (14)

1. a kind of diesel engine oil composition, including following component: on the basis of composition gross weight,
(A) metal detergent, content are 0.5~7.0%；
(B) ashless dispersant, content are 1.0~10.0%；
(C) oxidation and corrosion inhibitor, content are 0.3~3.0%；
(D) composite antioxidant, content are 0.1~2.0%；
(E) duplex anti-friction agent, content are 0.1~2.0%；
(F) viscosity index improver, content are 1.0~15.0%；
(G) pour-point depressant, content are 0.1~2.0%；
(H) base oil, content are 70.0~92.0%.
2. diesel engine oil composition according to claim 1, which is characterized in that the component
It (A) is the mixture of any the two or three in alkylsalicylate, sulfonate and alkyl monosulfide phenates.
3. diesel engine oil composition according to claim 2, which is characterized in that the alkylsalicylate alkyl salicylate The structure of salt are as follows:
R is the alkyl containing 10~20 carbon atoms in formula, and M is Ca or Mg, and m, n are the positive integer being not zero.
4. diesel engine oil composition according to claim 2, which is characterized in that the structure of the alkyl monosulfide phenates are as follows:
R is the alkyl containing 10~24 carbon atoms in formula, and M is Ca or Mg, and m, n, x are the positive integer being not zero.
5. diesel engine oil composition according to claim 2, which is characterized in that the structure of the sulfonate are as follows:
R is the alkyl containing 14~28 carbon atoms in formula, and M is Ca or Mg, and m, n are the positive integer being not zero.
6. diesel engine oil composition according to claim 1, which is characterized in that the component (B) is polyisobutene fourth two Acid imide dispersing agent.
7. diesel engine oil composition according to claim 6, which is characterized in that the knot of the polyisobutene succinimide Structure are as follows:
PIB is polyisobutene in formula, and molecule is that 900~2500, n is the positive integer being not zero.
8. diesel engine oil composition according to claim 1, which is characterized in that the component (C) is dialkyl dithio Trbasic zinc phosphate oxidation and corrosion inhibitor.
9. diesel engine oil composition according to claim 8, which is characterized in that the knot of the zinc dialkyl dithiophosphate Structure formula are as follows:
R=C in formulanH2n+1, n=3~10.
10. diesel engine oil composition according to claim 1, which is characterized in that the component (D) is by phenol type antioxidant It is combined with amine type antioxidant, calculates in mass ratio, phenol type antioxidant: amine type antioxidant is 2:1；
Wherein the phenol type antioxidant is 3- (3,5- di-tert-butyl-hydroxy phenyl) propionic ester, and the amine type antioxidant is alkane Base diphenylamines.
11. diesel engine oil composition according to claim 1, which is characterized in that the component (E) is organic-molybdenum and organic The mixture of amine, calculates in mass ratio, organic-molybdenum: organic amine 2:1；
Wherein the organic-molybdenum is molybdenum dialkyl-dithiophosphate, molybdenum dialkyldithiocarbamacompositions or molybdenum amine complex, institute Stating organic amine is oleyl amine or oleyl amides.
12. diesel engine oil composition according to claim 1, which is characterized in that the component (F) be ethylene-propylene copolymer or Polymethacrylates.
13. diesel engine oil composition according to claim 1, which is characterized in that the component (G) is poly alpha olefin or gathers Methacrylate.
14. diesel engine oil composition according to claim 1, which is characterized in that the component (H) has low high temperature high Shear viscosity.
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