CN106190505B - A kind of turbo-charged direct injection cylinder oil composition - Google Patents

A kind of turbo-charged direct injection cylinder oil composition Download PDF

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Publication number
CN106190505B
CN106190505B CN201610654137.8A CN201610654137A CN106190505B CN 106190505 B CN106190505 B CN 106190505B CN 201610654137 A CN201610654137 A CN 201610654137A CN 106190505 B CN106190505 B CN 106190505B
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oil
turbo
direct injection
engine
base oil
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CN106190505A (en
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石俊峰
杨操
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Jiangsu Longpan New Material Technology Co ltd
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JIANGSU LOPAL TECH Co Ltd
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    • 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
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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
    • C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
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    • 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
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    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
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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
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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
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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
    • C10M2227/08—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 having metal-to-carbon bonds
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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
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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
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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
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Abstract

The invention discloses a kind of turbo-charged direct injection cylinder oil compositions, are reconciled by the component of following weight percentage: base oil 75~85%, engine oil package 7~12%, viscosity index improver 4~12%, friction improver 0.3~1.0%, high temperature ashless oxidation inhibitor 0.3~1.0%, rubber seal modifier 0.3~2%, pour-point depressant 0.1~0.5%.Lubricant oil composite of the invention rationally controls the content of calcium content, phosphorus and molybdenum in lubricating oil product oil, so that products obtained therefrom has excellent high-temperature oxidation resistance and piston detergency, stronger greasy filth control ability and outstanding anti-wear protection ability；The generation of turbine direct-injection engine with supercharger low speed pre-ignition phenomenon can be effectively reduced, and helps the fuel economy for improving vehicle, increasing service life of engine.

Description

A kind of turbo-charged direct injection cylinder oil composition
Technical field
The invention belongs to cylinder oil technical fields, moisten more particularly to a kind of turbo-charged direct injection engine Sliding oil composition.
Background technique
In recent years, turbocharging and in-cylinder direct-jet technology have become the important trend of spark ignition type gasoline engine.Turbine increases It is pressed in and improves that engine power density, to increase torque output upper with the obvious advantage, thus improved in the case where not increasing discharge capacity Engine power performance；In-cylinder direct-jet technology can effectively improve efficiency of combustion, improve fuel consumption and emission, and promote engine Transient response.The discharge and fuel efficiency regulation formulated due to countries in the world government become to be increasingly stringenter, original device system It makes quotient and is all using turbocharging, gasoline direct injection (TGDI) engine technology.Currently, turbocharging gasoline direct injection starts Machine accounts for the 15-20% of new engine yield, and after 3 to four years following, the market share in Europe will increase by one Times.It was predicted that arriving the year two thousand twenty, there is 50% engine that will be equipped with turbo-charged direct injection formula technology in commercially available new car.
However, also having negative effect, such as its running temperature than tradition using the engine of turbo-charged direct injection formula technology Engine is much higher, is usually associated with higher fuel dilution, will lead to oxidation, machine oil retrogradation, carbon distribution and sludge deposition, from And lead to the blocking of oil filter and oil duct；Engine inner wall causes serious carbon distribution due to overheat, turbocharger The problems such as carbon distribution formed in bearing chamber will lead to bearing failure, all to lubricating oil, more stringent requirements are proposed for these, it is necessary to have There are higher inoxidizability, high temperature detergency, higher film strength and anti-shear performance.In addition, turbo-charged direct injection is started Machine is most prominent and the problem that makes people puzzled is low speed pre-ignition phenomenon.Low speed pre-ignition be with air inflow increase, in-cylinder pressure and Temperature is constantly promoted, and is easy to cause random pre-ignition in the excessively high torque demand of low speed segment, is a kind of malcombustion phenomenon.Low speed When pre-ignition occurs, easily cause super detonation in cylinder, maximum combustion pressure rises sharply in cylinder, can make sparking-plug electrode fusing, piston ring Fracture, top land ablation, connecting rod bending etc. will cause engine damage when serious.The formation master of studies have shown that low speed pre-ignition Related to the factors such as the wet wall amount of cylinder, combustion chamber machine oil droplet distribution, hot spot and coke content, the composition and quality of machine oil are to morning Combustion, which is formed, also has important influence.
The domestic lubricating oil for turbo-charged direct injection engine is almost using the vehicle with traditional natural air-breathing at present It is identical with viscosity with the credit rating of lubricating oil, it is at most exactly to improve engine oil quality grade, to improving turbo-charged direct injection The low speed pre-ignition phenomenon of engine does not have any effect, and some can even aggravate the generation of low speed pre-ignition.According to the applicant understood, state The relevant report of interior turbo-charged direct injection cylinder oil is less, is also not affected by attention, and CN10410957A describes one kind Turbocharged engine Special lubricating oil formula and its production technology, the patent have mainly used synthetic base oil and high-performance Engine complexing agent promotes high temperature oxidation resistance, wear resistence and the detergent-dispersant performance of oil product, solves turbogenerator carbon distribution and asks Topic, but the low speed pre-ignition problem and engine that can not help improve turbo-charged direct injection engine are in long term high temperature operating condition Lower seal is because of oil leakage problem caused by aging.
Summary of the invention
Goal of the invention: in view of the above shortcomings of the prior art, the present invention provides a kind of turbo-charged direct injection engine use Lubricant oil composite.
Technical solution: turbo-charged direct injection cylinder oil composition of the invention, by following weight percentage Component reconcile: base oil 75~85%, viscosity index improver 4~12%, rubs at engine oil package 7~12% Wipe modifier 0.3~1.0%, high temperature ashless oxidation inhibitor 0.3~1.0%, rubber seal modifier 0.3~2%, pour-point depressant 0.1 ~0.5%.
100 DEG C of kinematic viscosity of gained lubricant oil composite are 9.3~16.3mm2/ s, and calcium content is in lubricating oil 0.2% hereinafter, phosphorus content is 0.06~0.12%, and molybdenum content is 0.01~0.08%.
The base oil is composite foundation oil, further includes III class base oil of hydroisomerization and poly- including Esters oil At least one of alpha-olefin synthetic base oil.
Preferably, the base oil is composite foundation oil, including Esters oil, III class base oil of hydroisomerization and poly- Alpha-olefin synthetic base oil.Wherein, the weight ratio of III class base oil of hydroisomerization and poly alpha olefin synthetic base oil is 1:1- 2。
Wherein, the III class base oil of hydroisomerization can be in base oil Yubase 4 and base oil Yubase6 At least one；The poly alpha olefin synthetic base oil can be selected from least one of base oil PAO 4 and base oil PAO6； The Esters oil is saturated polyol ester or 100 DEG C of kinematic viscosity are 2000mm2The high-viscosity compound ester of/s can be saturation respectively Polyol ester Esterex NP343, high viscosity complex ester Priolube3986, it is further preferred that the Esters oil is lubricating Accounting in fluid composition is 0.5~5%.
The engine oil package is the engine oil package for meeting the above rank of API SM, it is preferred that this hair The engine oil compounding machine of bright middle selection can be engine complexing agent P5810, engine complexing agent Hitec9890 etc..Start Machine oil complexing agent is that good detersive, dispersing agent, oxidation and corrosion inhibitor and ashless oxidation inhibitor, anti-friction composition etc. is selected to modulate, The diesel engine oil for being added to engine oil package can significantly improve the piston of engine and fill charcoal and cylinder wear, and have excellent Cigarette ash dispersion and antioxygen, anticorrosive and wear resistance, can be effectively protected engine and increasing service life of engine.
The present invention not only helps to mention by the way that suitable saturated polyol ester or high-viscosity compound ester are added in lubricant formula The high high temperature detergent-dispersant performance of oil product, and enhance oil film thickness of the oil product under low speed, heavy load operating condition, and using multiple The synergistic effect of ZDDP in ester and engine complexing agent effectively increases oil product to the anti-wear protection of valve system, reduces oil product and exist Coefficient of tractor under the conditions of elastohydrodynamic lubrication improves the fuel economy of vehicle.
The viscosity index improver is ethylene propylene copolymer, hy drogenated styrene-diene copolymer or polymethyl One of sour methyl esters can be viscosity index improver SV261, viscosity index improver Lubrizol7077 or viscosity and refer to Number modifier Viscoplex 2-540.
The friction improver is oil-soluble molybdenum dialkyldithiocarbamacompositions salt, molybdenum dialkyl-dithiophosphate salt Or one of sulfur-bearing tri-nuclear molybdenum compound, it specifically can be the molybdenum dialkyldithiocarbamacompositions Sakura- containing 10% molybdenum Lube 525, the molybdenum dialkyl-dithiophosphate Sakura-lube 300 containing 9% molybdenum or the tri-nuclear molybdenum compound containing 5.5% molybdenum One of Infineum S1888.
Preferably, high temperature ashless oxidation inhibitor is also added into instant component, the high temperature ashless oxidation inhibitor is alkyl two Aniline or phenyl-α-naphthylamine.Base oil of the invention uses hydroisomerization Group III or polyalphaolefin synthetic base oil, and cooperates High temperature ashless oxidation inhibitor can effectively improve the heat-resisting quantity and inoxidizability of oil product, prevent turbo-charger bearing deposit It is formed, provides good wear-resistant protection for booster element.
Preferably, rubber seal modifier of the present invention is four alkylidene sulfone of 3- alkoxy.By the way that rubber seal is added Modifier can help to improve lubricating oil to the compatibility protectiveness of engine sealing, delay the aging of sealing element, repair and living Change the sealing element of aging, effectively solves the problems, such as vehicle permeability.
The pour-point depressant is polymethacrylates, can be polymethyl methacrylate Viscoplex 1-248.
The utility model has the advantages that being compared to the prior art, lubricant oil composite of the invention has the advantage that (1) is rationally controlled The content of calcium content, phosphorus and molybdenum in lubricating oil product oil is made, so that products obtained therefrom has excellent high-temperature oxidation resistance and work Fill in detergency, stronger greasy filth control ability and outstanding anti-wear protection ability；(2) turbine direct-injection pressurization hair can be effectively reduced The generation of motivation low speed pre-ignition phenomenon, and help the fuel economy for improving vehicle；(3) exhaust gas aftertreatment system is provided very Good compatibility protection, oil leakage problem caused by solving because of sealing element aging facilitate increasing service life of engine.
Specific embodiment
Raw material sources: engine complexing agent Infineum P5810, the copolymerization of viscosity index improver hydrogenated styrene diene Object SV261, friction improver Infineum S1888 are all from Run Yinglian company, the U.S.；Saturated polyol ester Esterex NP343 comes from U.S.'s Mobil Corporation；Friction improver Sakura-lube 525, friction improver Sakura-lube 300 come from Chinese mugwort Dicon A/S, Japan；Pour-point depressant polymethyl methacrylate Viscoplex 1-248, viscosity index improver Viscoplex 2-540 comes from German Evonik Degussa Corp.；Engine complexing agent Hitec9890 comes from Afton Chemical Corp., the U.S.；Ethylene, propylene Copolymer LZ7077 is all from Lubrizol Corp., the U.S.；High viscosity complex ester Priolube 3986 comes from the big chemicals of Britain's standing grain Company.Other do not do the raw material of specified otherwise, are that market is sold.
Embodiment 1
Turbo-charged direct injection cylinder oil composition in the present embodiment, by the component of following weight percentage It reconciles:
Embodiment 2
Turbo-charged direct injection cylinder oil composition in the present embodiment, by the component of following weight percentage It reconciles:
Embodiment 3
Turbo-charged direct injection cylinder oil composition in the present embodiment, by the component of following weight percentage It reconciles:
Embodiment 4
Turbo-charged direct injection cylinder oil composition in the present embodiment, by the component of following weight percentage It reconciles:
Embodiment 5
Turbo-charged direct injection cylinder oil composition in the present embodiment, by the component of following weight percentage It reconciles:
Embodiment 6
Turbo-charged direct injection cylinder oil composition in the present embodiment, by the component of following weight percentage It reconciles:
Embodiment 7
Turbo-charged direct injection cylinder oil composition in the present embodiment, by the component of following weight percentage It reconciles:
Performance test:
The main performance index of the various embodiments described above is listed in table 1.
The performance indicator data of each embodiment oil product of table 1
By data in table as it can be seen that gained 100 DEG C of kinematic viscosity of lubricating oil are 9.3~16.3mm in embodiment 1 to 72/ s, and Calcium content is 0.2% hereinafter, phosphorus content is 0.06~0.12% in lubricating oil, and molybdenum content is 0.01%~0.08%.Can have There are excellent high-temperature oxidation resistance, piston detergency, greasy filth controlling, anti-wear protection and shear resistant, can effectively protect Each lubricant housings of turbo-charged direct injection engine is protected, prevents turbo-charger bearing ablation due to deposit, and substantially reduce low The generation of fast pre-ignition phenomenon improves VE Vehicle Economy and service life of aeroengine.It prevents too early because of sealing element aging simultaneously And there is oil leakage problem, and the sealing element of aging can be activated, solve vehicle leakage problems.

Claims (5)

1. a kind of turbo-charged direct injection cylinder oil composition, which is characterized in that 100 DEG C of the lubricant oil composite Kinematic viscosity is 9.3~16.3mm2/ s, calcium content is 0.2% hereinafter, phosphorus content is 0.06~0.12% in lubricating oil, and molybdenum contains Amount is 0.01~0.08%；
The lubricant oil composite is reconciled by the component of following weight percentage: base oil 75~85%, engine oil Complexing agent 7~12%, viscosity index improver 4~12%, friction improver 0.3~1.0%, high temperature ashless oxidation inhibitor 0.3~ 1.0%, rubber seal modifier 0.3~2%, pour-point depressant 0.1~0.5%；
The base oil is composite foundation oil, further includes III class base oil of hydroisomerization and poly- α-alkene including Esters oil At least one of hydrocarbon synthetic base oil；Wherein, the Esters oil is saturated polyol ester or 100 DEG C of kinematic viscosity are 2000mm2The high-viscosity compound ester of/s, and the accounting in lubricant oil composite is 0.5~5%；
The friction improver is oil-soluble molybdenum dialkyldithiocarbamacompositions salt, molybdenum dialkyl-dithiophosphate salt or contains It is a kind of in sulphur tri-nuclear molybdenum compound；The rubber seal modifier is four alkylidene sulfone of 3- alkoxy；The pour-point depressant is poly- Methacrylate.
2. turbo-charged direct injection cylinder oil composition according to claim 1, it is characterised in that: described plus hydrogen III class base oil of isomerization is selected from least one of base oil Yubase 4 and base oil Yubase 6；The poly alpha olefin closes At least one of base oil PAO 4 and base oil PAO 6 are selected from base oil.
3. turbo-charged direct injection cylinder oil composition according to claim 1, it is characterised in that: the hair Motivation oil complexing agent is the engine oil package for meeting the above rank of API SM.
4. turbo-charged direct injection cylinder oil composition according to claim 1, it is characterised in that: described is viscous Degree index improver is one of ethylene propylene copolymer, hy drogenated styrene-diene copolymer or polymethyl methacrylate.
5. turbo-charged direct injection cylinder oil composition according to claim 1, it is characterised in that: the high temperature Ashless oxidation inhibitor is alkyl diphenylamine or phenyl-α-naphthylamine.
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