CN109504502A - A kind of wear-resistant type petrol engine lubricating oil of compound antioxygen - Google Patents
A kind of wear-resistant type petrol engine lubricating oil of compound antioxygen Download PDFInfo
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- CN109504502A CN109504502A CN201811133822.1A CN201811133822A CN109504502A CN 109504502 A CN109504502 A CN 109504502A CN 201811133822 A CN201811133822 A CN 201811133822A CN 109504502 A CN109504502 A CN 109504502A
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Classifications
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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
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/06—Metal compounds
- C10M2201/065—Sulfides; Selenides; Tellurides
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- 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
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- 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
- C10N2030/10—Inhibition of oxidation, e.g. anti-oxidants
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/25—Internal-combustion engines
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
The present invention relates to one kind with FeS2/ carbon composite nano-material improves clean-up performance as lubrication oil antiwear agent, with sulfonate and salicylate, molybdenum dialkyldithiocarbamacompositions (MoDTC) and phenols are ashless for antioxidant, and the addition of high molecular polymer improves high temperature performance, compound additive after optimization has excellent performance, and fuel consumption reduces about 16-20%.It is such the result shows that the lubricant after proportion optimizing can provide efficient economical engine, for vehicular manufacturer and user, it may be the proper orientation for inhibiting engine fuel cost and Engine Durability under the conditions of different operation.
Description
Technical field
The present invention relates to the preparations of composite lube additive, in particular to a kind of to add for petrol engine lubricating oil
The application of agent, and performance test has been done to raising gasoline engine engine efficiency and fuel economy to this compounded lubricant.
Background technique
With the growing interest to energy shortage and environmental protection, haulage vehicle accounts for about world energy consumption every year
19%.The main reason for friction between surface is energy dissipation in automobile engine.It is generated due to friction loss, engine
General power reduces in the range of 17-19%.The ability that lubricating oil improves fuel economy is most important in the world.Cause
This, the research that frictional power loss reduces is obtained as a promising direction of fuel economy petrol engine performance
Great concern.The total frictional force loss for reducing vehicle can make America's economy save 120,000,000,000 dollars every year.In order to solve
This problem, we are using the Nanotribology in engine as frictional power loss is minimized, and slidingsurface is worn and overheat
The main policies of generation finally will lead to the raising of automobile engine performance.Using the lubricant additive of nanocomposite
It is considered as a kind of attractive modifying lubricating oil technology being widely used, changes because it does not need any great hardware
It makes.In order to improve engine efficiency, need to explore new method to replace using environmentally harmful additive, this will lead to not
Good discharge (zinc dialkyl dithiophosphate (ZDDP)), the frictional behaviour without will affect automobile engine are such as environmental-friendly
Additive, such as ionic liquid and nano particle.Since its excellent performance has become, many energy are related for the research of nano material
One of research field with fastest developing speed in field.Rameshkumar et al. has studied addition ferric oxide nanometer particle to lubricating oil
(SAE10W-30) influence.The result shows that fuel economy can be improved using nano lubricating agent.Another research is also shown that
The fuel economy of petrol engine can be improved into 3-5% under full capacity using molybdenum.Fuel economy is obtained from lubricant
Property a common approach be to reduce its viscosity and to minimize boundary friction coefficient.Use MoS2Nano lubricating agent, fuel warp
Ji property reduces 5-10%.The main direction of studying of country variant is had become to the investigation of vehicle fuel consumption value decline.From root
It is said on this, the braking specific fuel consumption (BSFC) of engine shows fuel quantity consumed by per unit work.BSFC is with load
Increase and reduce, until reaching minimum BSFC, then be known as excessively refuel the phenomenon that in increase.In addition, engine load
Have a significant impact to engine efficiency and BSFC.Mechanical efficiency usually increases with engine load.Scientific research personnel is already led to
The viscosity characteristics of optimization engine oil (5W-30) are crossed to study fuel economy.The result shows that the increase of lubricating oil viscosity index
Improve fuel economy.In addition, the optimization of lube oil additive performance depends not only on the raising of frictional behaviour, one excellent
Lube oil additive must the condition that is optimal of each side's name.Improve piston deposit, piston cleanliness, cigarette ash induced-viscosity to increase
The problems such as thick and oxidation induced-viscosity thickening, so the lube oil additive of composite optimization comes into being.
A kind of gasoline lubricating oil complexing agent, it should have excellent clean-up performance, greasy filth dispersion performance, wear-resistant anti-oxidant
And corrosion resistance, the design belong to compound additive class.
Summary of the invention
The present invention overcomes the deficiency of existence conditions, provide it is a kind of with excellent clean-up performance, greasy filth dispersion performance,
Wear-resistant anti-oxidant and corrosion resistance compound additive class gasoline lubricating oil complexing agent.
The present invention is achieved through the following technical solutions
A kind of wear-resistant type petrol engine lube oil additive of compound antioxygen includes detergent 25- based on mass fraction
55%, ashless dispersant 20-60%, antioxidant 5-25% and antiwear additive 5-20%, wherein the antiwear additive is FeS2/ carbon is compound
Material.
Further, above-mentioned additive includes detergent 30-50%, ashless dispersant 35-55%, antioxygen based on mass fraction
Agent 10-20% and antiwear additive 5-15%.
The detergent is metal detergent, more specifically both sulfonate and alkylsalicylate composition；
Ashless dispersant is high molecular weight succinimide dispersant (T161)；
Antioxidant is molybdenum dialkyldithiocarbamacompositions (MoDTC) and/or phenols ashless oxidation inhibitor；Further preferably
Molybdenum dialkyldithiocarbamacompositions (MoDTC) account for 65%, and phenols ashless oxidation inhibitor accounts for 35%.
Further, phenols ashless oxidation inhibitor general structure
R3、R4: methyl, ethyl, tert-butyl；R5=CmH2m+1(m=5-20).
A kind of preparation method of antiwear additive is also claimed in the present invention, relative to the g-C in relation to patented invention3N4/FeS2It is multiple
Object is closed, the present invention is no longer depended on containing C3N4This nitrogenate, directly compound with porous carbon, more simple and effective, and it is this
The preparation of antiwear additive is more simple, and raw material is easy to get, and is suitble to production.Preparation step includes:
Step 1: the preparation of carbon, obtains PEI solution for PEI (polyetherimide) dissolution in deionized water；By bromoacetonitrile
It is added in ethyl alcohol, wherein the mass ratio of PEI (polyetherimide) and bromoacetonitrile is 2:1.Stirring to dissolution prepare bromoacetonitrile with
The mixed liquor of ethyl alcohol；The mixed liquor of bromoacetonitrile and ethyl alcohol is slowly dropped in PEI solution, presoma PEI is prepared；It takes and forerunner
Body PEI material molar ratio is the AgN (CN) of 1:12It is added in presoma PEI, adds water and stirs to obtain PEI-DCA；By PEI-DCA
Calcining obtains required carbon material.
Wherein calcining is in N2It burns under atmosphere to 800 DEG C；
Step 2: FeS2The preparation of/carbon composite, the carbon material that the first step synthesizes is added in deionized water, is carried out
Ultrasonic treatment；Then by FeCl2·4H2O, PVP, sulphur powder, NaOH solution (concentration 0.75mol/L) are respectively added to above-mentioned molten
It is reacted in liquid, wherein carbon material, FeCl2·4H2O, the mass ratio of PVP, sulphur powder and NaOH are 4:5:7:5:3.5.By
This obtains FeS2/ carbon nano-composite material.
Above-mentioned reaction condition is sealing, 200 DEG C of hydro-thermal reaction 20h.
For the ease of comparing, FeCl is not being added2·4H2In the case where O and sulphur powder, carbon materials are prepared for same method
Expect nanometer sheet；FeS is prepared in the case where not adding carbon2。
A kind of wear-resistant type petrol engine lubricating oil of compound antioxygen is also claimed in the present invention, and above-mentioned lubricating oil addition is added
Agent.
Actual gain of the invention
Different types of detergent, dispersing agent, antiwear additive and antioxidant are distributed rationally, reach complexing agent composition most
Excellent performance requirement.Wherein, the maximum feature of the present invention is using FeS2/ carbon composite antiwear additive the most not only abrasion resistance
It is good, and the FeS of near-spherical2Particle plays the role of nano bearing between friction surface, to reduce friction, reduces abrasion and makees
With.With 6.5% plus dosage so that gasoline engine composition quality is reached GB11121SE standard.
Detailed description of the invention
The present invention has following attached drawing:
Fig. 1 is the composite lube additive of various concentration of the present invention and the coefficient of friction of base oil；
Fig. 2 is that the function of inventive engine braking power (a) and torque (b) and throttle valve opening at 3,000 rpm closes
System；
Fig. 3 is the fuel consumption and speed of lubricating oil of the present invention (5W-30) and compounded lubricating oil compound additive.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
Embodiment 1
Antiwear additive: FeS2The preparation of/carbon composite；
FeS2/ carbon composite is prepared as lube oil additive antiwear agents
Step 1: the preparation of carbon.5g PEI (polyetherimide) is dissolved in 15ml deionized water, is stirred, to complete
Solution transfer single port bottle continues to stir spare；The bromoacetonitrile of 2.4g is added in 10ml ethyl alcohol, stirring to dissolution；Use dropper
The mixed liquor of bromoacetonitrile and ethyl alcohol is slowly dropped in PEI solution, is stirred 36 hours, 45 degree of revolvings, ether washing, vacuum is dry
It is dry.It is denoted as presoma PEI.Take the AgN (CN) for being 1:1 with presoma PEI material molar ratio2It is added in 5g persursor material,
It adds water and stirs 12 hours, label PEI-DCA, rotates, wash, vacuum drying.PEI-DCA material is put into tube furnace N2Under atmosphere
It burns to 800 DEG C, obtains required carbon material.
Step 2: FeS2The preparation of/carbon composite.The carbon material of 0.20g is added in the deionized water of 50ml first,
Carry out the ultrasonic treatment of 2h.Then, by 0.25g FeCl2·4H2O, 0.35g PVP, 0.25g sulphur powder, 6ml NaOH solution are (dense
Degree is 0.75mol/L) it is respectively added in above-mentioned solution, then mixed solution is placed individually into 100mL by magnetic agitation 0.5h
It in stainless steel hydrothermal reaction kettle (inner lining material is polytetrafluoroethylene (PTFE)), and is sealed, reaction condition is 200 DEG C of hydro-thermal reactions
20h.Products therefrom washing, alcohol are washed, the sample after cleaning then is placed on 60 DEG C of dry 12h of vacuum drying, to obtain
FeS2/ carbon nano-composite material.
For the ease of comparing, FeCl is not being added2·4H2In the case where O and sulphur powder, carbon materials are prepared for same method
Expect nanometer sheet；FeS is prepared in the case where not adding carbon2.Detergent: sulfonate and alkylsalicylate
R1=CmH2m+1(m=10-20)
M=Na, Ca, Mg
R2=CmH2m+1(m=10-15)
M=Na, Ca, Mg
Ashless dispersant: high molecular weight succinimide dispersant (T161)
Ashless dispersant main function controls petrol engine greasy filth and generates, and controls sludge deposition, neutralizes what burning generated
Acid.This lubricating oil high molecular weight succinimide dispersant (T161) good using low temperature and High Temperature Disperse performance.
Antioxidant: molybdenum dialkyldithiocarbamacompositions (MoDTC) and phenols ashless oxidation inhibitor MoDTC are inorganic molybdenum core
Wherein ligand provides oil-soluble with the compound of dialkyldithiocarbamacompositions.Molybdenum core be 5 valences two core molybdenums or 4 valences three
Core molybdenum.
It weighs 144g molybdenum trioxide to be added in 216mL water, the NaHS solution of 202g mass fraction 40% is added dropwise then at 40 DEG C
The 1h. hydrogensulfite solution that then addition 34g mass fraction is 85% is reacted in 60 DEG C of reaction 1h, adds 324g first
Alcohol, bis- octodrine of 254g.80g carbon disulfide, while being acidified with 50.5g sulfuric acid (mass fraction 35%).In 72 DEG C of reaction 5h.
It is cooled to room temperature, removes one methanol layer of water, obtain brown oil.It is washed with water and methanol, using being dried under reduced pressure, is made
425g yellow oil.Through chemical detection, contain molybdenum 20.8%, sulphur 21.5%.
Wherein sulphur is antioxidant, anti-oxidant in the molecule, improves oil ageing stability；The thermal decomposition of MoDTC
It is endothermic process.The TRANSIENT HIGH TEMPERATURE that metal contact friction generates can be absorbed, reduce oil temperature, protect oil quality of lubricant, extension is changed
The oily phase.
Phenols ashless oxidation inhibitor general structure
R3、R4: methyl, ethyl, tert-butyl；R5=CmH2m+1(m=5-20)
The present invention is mainly technically characterized by: different types of detergent, dispersing agent, antiwear additive and antioxidant optimization are matched
It sets, the performance requirement for being optimal complexing agent composition.Wherein, the maximum feature of the present invention is using FeS2/ carbon composite wood
Not only abrasion resistance is good for antiwear additive the most for material, but also the FeS of near-spherical2Particle plays the work of nano bearing between friction surface
With, so that friction is reduced, reduction abrasive action.With 6.5% plus dosage make gasoline engine composition quality reach GB11121SE mark
It is quasi-.
In configuration oil product, the effective dose of each component is as follows:
The result content wherein optimized is as follows:
Metal detergent (both sulfonate and alkylsalicylate composition) 40%
Ashless dispersant (high molecular weight succinimide dispersant (T161)) 38%
Antioxidant (molybdenum dialkyldithiocarbamacompositions (MoDTC) and phenols ashless oxidation inhibitor) 15%
Wherein: molybdenum dialkyldithiocarbamacompositions (MoDTC) account for 65%, and phenols ashless oxidation inhibitor accounts for 35%
Antiwear additive (FeS2/ carbon composite) 7%.
Tribological property test
By the FeS of 7wt.%2/ carbon composite is added in base oil atoleine, and in order to be compared, carbon material is received
Rice piece and FeS2Particle also takes same processing method.Above-mentioned weighed solid powder is uniformly divided using ultrasonic cleaner
It is dispersed in base oil, forms dense fluid sample.It is tested using UMT-2 Multifunctional friction testing machine (U.S. CE TR company)
The tribological property of sample.Due to being comparative tests, so the time that this experiment is chosen is 10min.Stainless steel ball is diameter
The 9Cr18 fashioned iron of 9mm, hardness 62HRC are 45# blooms to grinding, having a size of Φ 40mm × 6mm.
Engine setting and test program
Experiment is on petrol engine (model HXDG16-BD-TJ, multi-point injection is independent to light a fire, water cooling and natural aspiration)
It carries out.Engine measures engine performance using AVL dynamometer machine.The technical specification of engine and vehicle is shown in Table 1.
1 engine of table and vehicle technology specification
The effect to confirm nanometer additive is measured to evaluate nanometer additive under different operating conditions, this
Allow to evaluate lubricant under different lubricating conditions within the engine.In addition, being started using vehicle operational mode (NEDC)
Machine performance compares, to confirm influence of the nanometer additive to the different operation condition of engine.The assessment of NEDC driving cycle is permitted
Perhaps in actual operating conditions Imitating nanometer additive, and fuel consumption is emphasized.The experiment of NEDC driving cycle is surveyed in AVL
It is completed on power meter.Each NEDC test is started when being cold-started engine (35 DEG C).
In order to study the situation of change of various lubricating additives coefficient of friction under Different adding amount, experiment tests lubrication
Additive is respectively the tribological property of compounded lubricating oil compound, experiment condition are as follows: load 20N, revolving speed 300rpm, time
10min.As shown in Figure 1, every group of friction co-efficient value tested is all very low, the relative error of coefficient of friction is lower than 10%,
And with the increase of various lubricating additive contents, coefficient of friction is also gradually decreasing on the whole, wherein lubricating additive
For with the increase of content, the synthesis tribological property of the lubricating oil containing compounded lubricating oil compound is also gradually increased.It is rubbing
During wiping, the FeS of near-spherical2Particle plays the role of nano bearing between friction surface, to reduce friction, reduces mill
Damage.FeS2FeS is attributed to the fact that in the tribology performance excellent as lube oil additive of/carbon composite2Collaboration between particle and carbon
Effect.
Fig. 2 is tested under the engine speed of 3000rpm, and throttle valve position is to compounded lubricating oil compound and engine
The oily braking power of (5W-30) and the influence of engine torque.The result shows that braking power and torque are with throttle valve opening
Increase and increases.Due to higher volumetric efficiency, torque and power can be obtained at full throttle.With medium or high
In the full open throttle valve of engine speed, exhaust inertia is relatively high.Exhaust gas inertia generates vacuum, is overlapped and is sucked by valve
New charge in cylinder.Therefore, longer overlaid periodic will lead to better cylinder charge and improve volumetric efficiency.
In the comparison of fuel consumption result, Fig. 3 provides the relationship between car speed and fuel consumption, for calculating
In engine automobile using nano lubricating agent economic profit how much.As a result it compares and uses lubricating oil (5W-30) and compound
Every 100 kilometers of the engine fuel consumption of the different gearbox gear-shifts of lubricant additive.It can clearly be observed that in low speed
In the case of can save up to 4L/100km using compounded lubricant, 2.4L/100km can be saved at economic pace (70km/h),
1.5L/100km is reduced simultaneously.Compared with the engine oil of not additive, fuel consumption at high speeds correspond to compared with
Low gear reduction ratio.According to before as a result, due to the advantage or mixed lubricating state in engine operational conditions lower boundary,
Compound additive is highly effective under lower throttle valve opening and lower engine speed (city).
By above-mentioned experiment, composite material lubricant improves gasoline engine in all operating points and NEDC driving circulation
The performance of machine.Facts proved that these results and fuel economy have direct correlation, Main Conclusions is as follows:
1, the synthesis tribological property containing compounded lubricating oil compound additive is improved.In friction process, class
Spherical FeS2Particle plays the role of nano bearing between friction surface, to reduce friction, reduces abrasion.FeS2/ carbon nanometer
FeS is attributed to the fact that in the composite material tribology performance excellent as lube oil additive2Synergistic effect between particle and carbon.
2, compared with the lubricating oil (5W-30) of not particle, under all specific operating conditions, compounded lubricant is used
Compound additive can increase braking power and engine torque.The reason is that using compounded lubricant compound additive, always
Friction horsepower has dropped 5-7%.And used antioxidant and detergent play best effect all in optimal content
Fruit.As a result, the mechanical efficiency of engine improves 0.7-2.5%.
3. the fuel consumption for corresponding to compounded lubricant compound reduces about 16-20%.Therefore, during NEDC test
The fuel consumption of record reduces the fuel economy needed in city with about 4L/100km.
4. since the composite lubricated agent addition agent of the sensibility for improving lubricating oil accelerates warm-up phase in the operating condition
24%.As a result fuel consumption reduces 4-10%.
Claims (10)
1. a kind of wear-resistant type petrol engine lube oil additive of compound antioxygen, it is characterised in that: based on mass fraction include clear
Clean dose of 25-55%, ashless dispersant 20-60%, antioxidant 5-25% and antiwear additive 5-20%, wherein the antiwear additive is
FeS2/ carbon composite.
2. additive according to claim 1, it is characterised in that: based on mass fraction include detergent 30-50%, ashless
Dispersing agent 35-55%, antioxidant 10-20% and antiwear additive 5-15%.
3. additive according to claim 1, it is characterised in that: the detergent is metal detergent, more specifically sulphur
Both hydrochlorate and alkylsalicylate composition.
4. additive according to claim 1, it is characterised in that: ashless dispersant is the dispersion of high molecular weight succimide
Agent (T161)；
Antioxidant is molybdenum dialkyldithiocarbamacompositions (MoDTC) and/or phenols ashless oxidation inhibitor.
5. additive according to claim 4, it is characterised in that: wherein, molybdenum dialkyldithiocarbamacompositions (MoDTC)
65% is accounted for, phenols ashless oxidation inhibitor accounts for 35%.
6. additive according to claim 4, it is characterised in that: phenols ashless oxidation inhibitor general structure is
R3、R4: methyl, ethyl, tert-butyl；R5=CmH2m+1(m=5-20).
7. a kind of preparation method of antiwear additive, step include:
Step 1: the preparation of carbon, prepares PEI (polyetherimide) solution first；Bromoacetonitrile is added in ethyl alcohol, is stirred to molten
Solution prepares the mixed liquor of bromoacetonitrile and ethyl alcohol；The mixed liquor of bromoacetonitrile and ethyl alcohol is slowly dropped in PEI solution, forerunner is prepared
Body PEI, wherein the mass ratio of PEI and bromoacetonitrile is (1.5-2.5): 1；Take the AgN for being 1:1 with presoma PEI material molar ratio
(CN)2It is added in presoma PEI, adds water and stirs to obtain PEI-DCA；PEI-DCA is calcined to obtain required carbon material；
Step 2: FeS2The carbon material that the first step synthesizes, is added in deionized water first, is surpassed by the preparation of/carbon composite
Sonication；Then, by FeCl2·4H2O, PVP, sulphur powder, NaOH solution (concentration 0.75mol/L) are respectively added to above-mentioned molten
It is reacted in liquid, thus to obtain FeS2/ carbon nano-composite material；Wherein, carbon material, FeCl2·4H2O, PVP, sulphur powder and
The mass ratio of NaOH is 4:5:7:5:3.5.
8. preparation method according to claim 7, it is characterised in that: calcining therein is in N2It burns under atmosphere to 800 DEG C.
9. preparation method according to claim 7, it is characterised in that: the reaction condition is to seal, under the conditions of 200 DEG C,
Hydro-thermal reaction 10-30h.
10. a kind of wear-resistant type petrol engine lubricating oil of compound antioxygen, it is characterised in that: any one of claim 1-6 institute is added
The lube oil additive stated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811133822.1A CN109504502B (en) | 2018-09-27 | 2018-09-27 | A compound anti-oxidative and anti-wear gasoline engine lubricating oil |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811133822.1A CN109504502B (en) | 2018-09-27 | 2018-09-27 | A compound anti-oxidative and anti-wear gasoline engine lubricating oil |
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| CN109504502B CN109504502B (en) | 2020-11-20 |
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| CN1699618A (en) * | 2005-05-27 | 2005-11-23 | 上海大学 | Surface treatment method of automobile engine piston pin |
| CN101007982A (en) * | 2006-01-27 | 2007-08-01 | 中国石油化工股份有限公司 | Transmission liquid composition for stepless speed gear |
| CN101781598A (en) * | 2009-12-04 | 2010-07-21 | 济南开发区星火科学技术研究院 | Multi-effect lubricating oil additive and preparation method thereof |
| CN103923728A (en) * | 2014-04-03 | 2014-07-16 | 山东力牌石油化学有限公司 | Anti-wear energy-saving engine lubricating oil |
-
2018
- 2018-09-27 CN CN201811133822.1A patent/CN109504502B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4008775A (en) * | 1973-06-28 | 1977-02-22 | Ironite Products Company | Method of using a porous Fe3 O4 drilling mud additive |
| WO2002051955A1 (en) * | 2000-12-26 | 2002-07-04 | Advanced Micro Devices, Inc. | Prevention of precipitation defects on copper interconnects during cmp by use of solutions containing organic compounds with silica adsorption and copper corrosion inhibiting properties |
| CN1699618A (en) * | 2005-05-27 | 2005-11-23 | 上海大学 | Surface treatment method of automobile engine piston pin |
| CN101007982A (en) * | 2006-01-27 | 2007-08-01 | 中国石油化工股份有限公司 | Transmission liquid composition for stepless speed gear |
| CN101781598A (en) * | 2009-12-04 | 2010-07-21 | 济南开发区星火科学技术研究院 | Multi-effect lubricating oil additive and preparation method thereof |
| CN103923728A (en) * | 2014-04-03 | 2014-07-16 | 山东力牌石油化学有限公司 | Anti-wear energy-saving engine lubricating oil |
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