CN101319163A - Lubricant composition for internal combustion engine - Google Patents
Lubricant composition for internal combustion engine Download PDFInfo
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- CN101319163A CN101319163A CNA2008100982508A CN200810098250A CN101319163A CN 101319163 A CN101319163 A CN 101319163A CN A2008100982508 A CNA2008100982508 A CN A2008100982508A CN 200810098250 A CN200810098250 A CN 200810098250A CN 101319163 A CN101319163 A CN 101319163A
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Abstract
The present invention provides a kind of fuel-efficient engine oil with good high-temperature deposition performance, low wear characteristic and long service life. The lubricating oil composition for internal combustion engines of the invention is characterized in that the lubricating oil composition is produced by adding certain amount of alkaline earth detergent containing 0.12 to 0.24 percent metal ingredient by weight ratio, adding certain amount of P-type additive at least including zinc dialkyl dithio (ZnDTP) containing 0.005 to 0.070 percent P by weight ratio and adding certain amount of molybdenum dithiocarbamate (MoDTC) containing 0.030 to 0.075 percent Mo by weight ratio to mineral oil and/or synthesized base oil. The P content in the P-type additive and the Mo content in MoDTC satisfy the following formula (1): 0.5*P + Mo<=0.075 (1 ); [wherein, P represents the P content in the P-type additive of the lubricating composition (wt%);Mo represents the Mo content in MoDTC of th e lubricating composition (wt%)].
Description
Technical field
The present invention relates to a kind of lubricant composition for internal combustion engine, especially relate to the long lifetime fuel-saving type lubricant composition for internal combustion engine of the functional and low wear characteristic excellence of a kind of high temperature deposition.
Background technology
In recent years, in order to prevent global warming, an urgent demand improves fuel efficiency, the inhibition CO of automobile
2Quantity discharged.In order to improve the fuel efficiency of automobile, importantly improve the efficient of engine (engine), petrol engine (gasolineengine) adopts lean-burn (lean burn), straight spray (direct-injection) or turbocharger (turbocharger) technology always.On the other hand, the friction that reduces engine also can help to improve fuel efficiency, therefore sliding part is used low-friction material or adopts the fuel-saving type engine oil.
Known, in order to make fuel-saving type engine oil (engine oil), following method is comparatively effective: reduce the engine oil viscosity, make viscosity reach (the Society of Automotive Engineers of american car technological associations, SAE) 5W-20 or the 0W-20 in the classification of the viscosity of J300 defined, and the allotment additive (friction regulator that reduces to rub, below, sometimes be also referred to as FM) be that molybdenum dithiocarbamate organic-molybdenums such as (MoDTC) is that FM is (with reference to K.Hoshino et al, Fuel Efficiency of SAE 5W-20 Friction Modified Gasoline Engine Oil, SAE Technical Paper982506 (1998), and Japanese patent laid-open 10-17883 communique).
On the other hand, the engine height that the efficiency ratio of lean-combustion engine and direct fuel-injection engine is original, so temperature of combustion also has the trend of rising, makes piston (piston) etc. expose to the open air under higher temperature.In addition, turbocharger be with air compression and coercively fed in cylinder, thus, though the unblown edition engine identical with free air delivery (Natural aspirationengine) compared, can increase the power of engine, but engine is exposed to the open air at high temperature always.Therefore, the high temperature deposition performance of engine oil also must be improved.That is to say, require the high temperature deposition performance of fuel-saving type engine oil from now on to be better than original engine oil.
Summary of the invention
In view of above situation, problem of the present invention is to provide the engine oil of a kind of high temperature deposition excellent performance and fuel-economizing excellence.
In order to solve described problem, the inventor has carried out making great efforts research, found that, mineral oil and/or synthetic be that the alkaline-earth metal of allotment specified quantitative in the base oil is a sanitising agent, and the lubricating oil composition of making can be used as the well behaved fuel-saving type engine oil of high temperature deposition with the molybdenum dithiocarbamate (MoDTC) of the zinc dialkyl dithiophosphate (ZnDTP) of specific ratio allotment specified quantitative and specified quantitative.The present invention develops according to this opinion.
That is to say, the present invention is a kind of lubricant composition for internal combustion engine, it is characterized in that, its be mineral oil and/or synthetic be in the base oil, the alkaline-earth metal that allotment is counted 0.12 quality % (mass percent)～0.24 quality % with metal ingredient is a sanitising agent, the P that contains zinc dialkyl dithiophosphate (ZnDTP) at least that counts 0.005 quality %～0.070 quality % with phosphorus (P) composition is an additive, and make with the molybdenum dithiocarbamate (MoDTC) that molybdenum (Mo) composition is counted 0.030 quality %～0.075 quality %, and described P is that the P composition of additive and the Mo composition of described MoDTC satisfy the represented condition of following formula (1):
0.5×P+Mo≤0.075 (1)
[in the formula, P represents that P is the P components in proportions (quality %) of additive in the lubricating oil composition, and Mo represents the Mo components in proportions (quality %) of MoDTC in the lubricating oil composition].
Lubricant composition for internal combustion engine of the present invention preferably contains the described molybdenum dithiocarbamate of counting 0.045 quality %～0.075 quality % with the molybdenum composition.And, it is additive that lubricant composition for internal combustion engine of the present invention preferably contains the described P that counts 0.005 quality %～0.050 quality % with phosphorus composition, and preferably to contain the described alkaline-earth metal of counting 0.15 quality %～0.20 quality % with metal ingredient be sanitising agent.In addition, the kinematic viscosity during preferred 100 ℃ of the described base oil of lubricant composition for internal combustion engine of the present invention is 3.5mm
2/ s～5.0mm
2/ s, viscosity index is 110～160.
[effect of invention]
By adopting aforesaid formation, lubricant composition for internal combustion engine of the present invention is the long lifetime fuel-saving type engine oil that can realize following special-effect, that is, and and the high temperature deposition excellent performance, even use the sediment pile amount also less for a long time, and can keep low friction for a long time.Therefore, lubricant composition for internal combustion engine of the present invention can be used for petrol engine or turbochargers such as oil engine, especially lean-burn or straight spray preferably, has given play to the special-effect that improves fuel efficiency.
Embodiment
The base oil of lubricant composition for internal combustion engine of the present invention can use mineral oil, synthetic be base oil and mineral oil with synthesizing be in the mixture of base oil any one.The kinematic viscosity preferred 3.5mm of this base oil in the time of 100 ℃
2/ s～5.0mm
2The scope of/s, preferred especially 4.0mm
2/ s～4.5mm
2The scope of/s.And, the scope of the viscosity index of this base oil preferred 110～160, preferred especially 120～140 scope.In addition, mineral oil it is desirable to viscosity index more than or equal to 120 base oil of high viscosity index lubricant.Viscosity index can obtain by following manner more than or equal to 120 base oil of high viscosity index lubricant: the generation oil that makes wax (wax) carry out the hydrogen isomerization or to make mink cell focus carry out the hydrocracking gained is carried out solvent dewaxing or hydrodewaxed.To an example of these manufacture method be specifically described below.
Can utilize following manner to make wax carry out the hydrogen isomerization: use boiling point be 300 ℃～600 ℃ scope, carbon number be the wax of 20～70 scope as raw material, be in the presence of the hydrogen of 5MPa～14MPa in the hydrogen dividing potential drop, under 300 ℃～450 ℃ temperature, with 0.1hr
-1～2hr
-1Liquid hourly space velocity (liquid hour space velocity LHSV), contacts described wax and hydrogen isomerization catalyst.At this moment, the transformation efficiency of preferred straight chain shape paraffin (paraffin) is more than or equal to 80%, and straight chain shape paraffin to the transformation efficiency of light ends smaller or equal to 40%.In addition, paraffin for example can be enumerated: at mineral oil is soft wax (slack wax) that obtains in the solvent dewaxing step of lubricating oil or the wax that utilizes the acquisition by the Fischer-Tropsch synthetic (Fischer-Tropsch synthesis) of synthetic liquid fuels such as appropriate hydrocarbon gas etc.And, the hydrogen isomerization catalyst for example can be enumerated: carrying one or more the catalyzer in nickel (nickel), cobalt 8 family's metals such as (cobalt) and molybdenum, the tungsten 6A family metals such as (tungsten) on aluminum oxide (alumina) or silicon oxide (silica)-alumina supporter, zeolite (zeolite) catalyzer or containing the catalyzer that is carrying platinum etc. on the carrier of zeolite.
On the other hand, can utilize following manner to carry out hydrocracking: use is normal pressure distilled oil, vacuum distillate or the bright stock (bright stock) of 300 ℃～600 ℃ scope through the boiling point of hydro-desulfurization and denitrogenation as required, in the hydrogen dividing potential drop is in the presence of the hydrogen of 7MPa～14MPa, under 350 ℃～450 ℃ temperature, with 0.1hr
-1～2hr
-1LHSV (liquid hourly space velocity), described normal pressure distilled oil, vacuum distillate or bright stock and hydrocracking catalyst are contacted.At this moment, preferred cleavage rate (accounting for the mass percent of resultant more than or equal to the reduction of 360 ℃ cuts) is 40%～90%.In addition, hydrocracking catalyst for example can be enumerated: carrying a kind of of 6A family metals such as a kind of of 8 family's metals such as nickel, cobalt or more than one and molybdenum, tungsten or more than one catalyzer on the silica-alumina carrier.
The hydrogen isomerization that obtains from utilizing described method can obtain lubricating oil distillate after generating and heating up in a steamer light ends oil or the hydrocracking generation oil, if but directly use this cut, then yield point or viscosity are higher in general, and viscosity index is enough not high.Therefore, can carry out dewaxing treatment, remove the dewax composition, obtain the %C of n-d-M ring analysis thus this cut
pMore than or equal to 80, yield point is smaller or equal to-10 ℃, and viscosity index is more than or equal to 120 lubricant base.
Remove under the situation of described wax composition utilizing solvent dewaxing to handle, preferably when heating up in a steamer described light ends, use the precise distillation device to carry out fractionation by distillation, carry out fractionation in advance so that by the boiling point of gas-chromatography distillation method gained more than or equal to 371 ℃ less than 491 ℃ cut more than or equal to 70 quality %, reason is, can carry out solvent dewaxing thus more expeditiously and handle.This solvent dewaxing is handled and is for example preferably used methyl ethyl ketone/toluene (volume ratio is 1/1) as dewaxing solvent, is 2/1～4/1 scope at the ratio of solvent and oil, and temperature is to carry out under-15 ℃～-40 ℃ the condition.
On the other hand, remove under the situation of described wax composition utilizing the hydrodewaxed method, higher thereby the preferred use of the efficient of following manner: heat up in a steamer light ends with the degree that can not hamper hydrodewaxed, after hydrodewaxed, use the precise distillation device to carry out fractionation by distillation, carry out fractionation so that by the boiling point of gas-chromatography distillation method gained more than or equal to 371 ℃ less than 491 ℃ cut more than or equal to 70 quality %.This hydrodewaxed is in the presence of the hydrogen of 3MPa～15MPa in the hydrogen dividing potential drop preferably, under 320 ℃～430 ℃ temperature, with 0.2hr
-1～4hr
-1LHSV (liquid hourly space velocity) described lubricating oil distillate is contacted with zeolite catalyst so that the yield point of final lubricant base is smaller or equal to-10 ℃.
Utilize above-described method, can obtain viscosity index more than or equal to 120 lubricant base, and can further carry out solvent treatment or hydrofinishing as required.
And, synthetic is that base oil can be enumerated: the oligopolymer of alpha-olefin, by hexanodioic acid diprotic acid and monohydroxy-alcohol institute synthetic diester such as (adipic acid), by neopentyl glycol (neopentyl glycol), TriMethylolPropane(TMP) (trimethylolpropane), tetramethylolmethane polyvalent alcohol and monoprotic acid institute synthetic polyol esters (polyol Ester) such as (pentaerythritol), and their mixture etc.In addition, also can be with mineral oil and the synthetic mixing oil that is the base oil appropriate combination forms as the base oil of lubricant composition for internal combustion engine of the present invention.
The employed zinc dialkyl dithiophosphate of lubricant composition for internal combustion engine of the present invention (ZnDTP), can enumerate the represented compound of following general formula (2):
[changing 1]
In the described general formula (2), R
1, R
2, R
3And R
4Independent respectively expression carbon number is 1～24 alkyl.These alkyl are that carbon number is that 1～24 straight chain shape or branched-chain alkyl, carbon number are that 3～24 straight chain shape or a chain thiazolinyl or straight chain shape or branched-chain alkyl cycloalkyl, carbon number are 6～18 aryl or straight chain shape or branched-chain alkyl aryl.And alkyl or alkenyl can be any one in one-level, secondary and three grades.
Total mass with respect to lubricant composition for internal combustion engine, at least the P that contains ZnDTP is that content of additive is counted 0.005 quality %～0.070 quality % with the contained phosphorus of P based compound (P) element quality, the scope of preferred 0.005 quality %～0.050 quality %.In addition, the P that lubricant composition for internal combustion engine of the present invention does not contain in fact beyond the ZnDTP is an additive, the P beyond the ZnDTP be content of additive preferably smaller or equal to 0.002 quality %, the P that does not more preferably contain beyond the ZnDTP is an additive.In addition, so-called P is an additive, is meant by the additive that compound constituted that contains phosphoric.
The employed molybdenum dithiocarbamate of lubricant composition for internal combustion engine of the present invention (MoDTC) can be represented with following general formula (3):
[changing 2]
In the described general formula (3), R
5, R
6, R
7And R
8The expression carbon number is 4～18 straight chain shape or branched-chain alkyl or thiazolinyl, and X represents Sauerstoffatom or sulphur atom, and the ratio of this Sauerstoffatom and sulphur atom is 1/3～3/1.R
5～R
8Preferred alkyl, preferred especially carbon number are 8～14 branched-chain alkyl, R
5～R
8Specifically can enumerate: butyl, 2-ethylhexyl, isotridecyl, octadecyl etc.In addition, be present in four R in a part
5～R
8Both can be the same or different.And, in the lubricant composition for internal combustion engine of the present invention, also can be with two kinds or two or more R
5～R
8Different MoDTC mixes use.
With respect to the total mass of lubricant composition for internal combustion engine, the content of MoDTC is counted 0.030 quality %～0.075 quality % with the contained molybdenum of MoDTC (Mo) element quality, the scope of preferred 0.045 quality %～0.075 quality %.
Allocate the P based compound and the MoDTC that contain ZnDTP at least in the following manner, promptly, make the P based compound count 0.005 quality %～0.070 quality % with the P composition, preferred 0.005 quality %～0.050 quality %, make MoDTC count 0.030 quality %～0.075 quality % with the Mo composition, preferred 0.045 quality %～0.075 quality %, and in the scope of 0.5 * P+Mo≤0.075.If the value of 0.5 * P+Mo greater than 0.075, then can not obtain the high temperature deposition performance of target, for example, the sediment quality of TEOST 33C test can be smaller or equal to 42mg.And, if the content of described P based compound in the P composition less than 0.005 quality %, then can not obtain the abrasion resistance of target, if the content of described P based compound in the P composition greater than 0.070 quality %, then the influence that tai-gas clean-up catalyst is poisoned is become big.On the other hand, if the content of described MoDTC in the Mo composition less than 0.030 quality %, then can not obtain the fuel-economizing performance of target, if the content of described MoDTC in the Mo composition greater than 0.075 quality %, then can not obtain the high temperature deposition performance of target.In addition, if the content of MoDTC in the Mo composition more than or equal to 0.045 quality %, then can obtain the high persistence of fuel-economizing performance.
From the viewpoint of spatter property, it is sanitising agent that lubricant composition for internal combustion engine of the present invention preferably contains alkaline-earth metal.This metal is that sanitising agent preferably uses at least a alkaline-earth metal sanitising agent that is selected from alkaline earth metal sulfonate, alkaline-earth metal phenates and the alkaline-earth metal salicylate.
Described alkaline earth metal sulfonate can use molecular weight to be preferably 300～1, and 500, be preferably the alkaline earth salt of 400～700 alkyl aryl sulfonate especially, preferably use magnesium salts and/or calcium salt, especially preferably use calcium salt.
Described alkaline-earth metal phenates can be enumerated the alkaline earth salt of Mannich (Mannich) reactant of alkylphenol (alkyl phenol), alkylphenol sulfide (alkyl phenolsulfide), alkylphenol, particularly magnesium salts and/or calcium salt, more particularly, can enumerate following general formula (4)～represented compound of general formula (6):
[changing 3]
[changing 4]
[changing 5]
In described general formula (4)～general formula (6), R
9, R
10, R
11, R
12, R
13And R
14Independent respectively expression carbon number is 4～30, be preferably 6～18 straight chain shape or branched-chain alkyl, M
1, M
2And M
3Represent alkaline-earth metal respectively, be preferably calcium and/or magnesium, x represents 1 or 2.
Described alkaline-earth metal salicylate can be enumerated the alkaline earth salt of alkyl salicylate, and preferred especially magnesium salts and/or calcium salt more particularly, can be enumerated the represented compound of following general formula (7):
[changing 6]
In the described general formula (7), R
15Independently the expression carbon number is 1～30, is preferably 6～18 straight chain shape or branched-chain alkyl respectively, and n represents 1～4 integer, preferred 1 or 2, and M
4The expression alkaline-earth metal, preferred calcium and/or magnesium.
Metal in the lubricant composition for internal combustion engine of the present invention is that the content of purification agent is preferably, total mass with respect to lubricant composition for internal combustion engine, count the scope of 0.12 quality %～0.24 quality %, the more preferably scope of 0.15 quality %～0.20 quality % with metal ingredient.If described metal be the content of sanitising agent in metal ingredient less than 0.12 quality %, then can not obtain the spatter property of target, if described metal be the content of sanitising agent in metal ingredient greater than 0.24 quality %, then ash content may be deposited in the combustion chamber, thereby not good.
And from spatter property and the dispersed viewpoint of greasy filth (sludge), lubricant composition for internal combustion engine of the present invention preferably contains ashless dispersant.Ashless dispersant can be enumerated the alkenyl succinimide by the polyolefin derivative gained, alkyl succinimide and their derivative.Representative succinimide can by make by high-molecular weight thiazolinyl or alkyl metathetical succinyl oxide, with each molecule on average contain 4～10 (preferred 5～7) nitrogen-atoms polyalkylene polyamine (polyalkylene polyamine) reaction obtain.High-molecular weight thiazolinyl or alkyl preferred amount molecular-weight average are 700～5000 polyisobutenyl, and special preferred amount molecular-weight average is 900～3000 polyisobutenyl.
The employed polybutylene-based succinimide of lubricant composition for internal combustion engine of the present invention can be enumerated the compound of following general formula (8) or general formula (9) expression:
[changing 7]
[changing 8]
In described general formula (8) and the general formula (9), PIB represents polybutylene-based, it is the group that utilizes following polybutene gained, promptly, this polybutene is to use boron fluoride series catalysts or aluminum chloride series catalysts, make the mixture of high-purity isobutylene or 1-butylene and iso-butylene carry out polymerization and obtain, and, described contain 5mol%～100mol% in polybutylene-based usually have the group of inferior ethene (vinylidene) based structures at the polybutene end.In addition, from the viewpoint of sludge inhibiting effect excellence, the integer of n preferred 2～5, preferred especially 3～4 integer.
And, the derivative of polybutylene-based succinimide can use so-called modification succinimide, promptly, make the compound of described formula (8) or formula (9) expression, with oxygen-containing organic compound effects such as boron compound such as boric acid or alcohol, aldehyde, ketone, alkylphenol, cyclic carbonate, organic acids, and with residual amino and/or imino-part or all neutralization or make their form amido.Especially, make boron compounds such as compound and the boric acid reaction of described formula (8) or formula (9) expression and thiazolinyl (or alkyl) succinimide of the boracic of acquisition is comparatively favourable aspect thermostability, oxidative stability.
The content of the ashless dispersant in the lubricant composition for internal combustion engine of the present invention is any content, and preferably the total mass with respect to lubricant composition for internal combustion engine is the scope of 0.5 quality %～15 quality %.
In the lubricant composition for internal combustion engine of the present invention, except described ZnDTP, MoDTC, metal were sanitising agent and ashless dispersant, can add ashless as required was additives such as depressant prescription, metal passivator, rust-preventive agent or defoamer under antioxidant, viscosity index improver, the yield point.
[embodiment]
Below, enumerate embodiment and illustrate in greater detail the present invention, but the present invention is not subjected to any qualification of following embodiment.
The generation oil that makes mink cell focus carry out the hydrocracking gained is carried out hydrodewaxed in use and the mineral oil that obtains is base oil [kinematic viscosity: 19.9mm
2/ s (40 ℃), 4.26mm
2/ s (100 ℃); Viscosity index is 121], be used as base oil.
With the ratio shown in the table 1, in described base oil, allocate MoDTC, ZnDTP and other additives, the lubricant composition for internal combustion engine (engine oil) of preparation embodiment 1～embodiment 2 and comparative example 1～comparative example 5.And, the value of 0.5 * P+Mo is shown in Table 1 together.In addition, alkaline-earth metal is that sanitising agent is to use calcium sulphonate, and ZnDTP is to use the R with described general formula (2) expression
1, R
2, R
3And R
4Be the compound of octyl group, and R
1, R
2, R
3And R
4Be the compound of butyl and amyl group, MoDTC is to use the R with described general formula (3) expression
5, R
6, R
7And R
8Be the 2-ethylhexyl, and the ratio (O/S) of the Sauerstoffatom of X and sulphur atom is 1/1 compound.In addition, other additives are the additive agent mixtures that comprise depressant prescription under alkenyl succinimide, viscosity index improver, the yield point and defoamer, all add the additive of same amount in all embodiment and comparative example.
[table 1]
The embodiment of his-and-hers watches 1 and the engine oil of comparative example are implemented TEOST 33C test, the performance of engine evaluated oil respectively.TEOST 33C test is to utilize sediment quality to estimate the project of high temperature deposition performance, in ILSAC GF-2 standard as the engine oil standard, regulation with sediment quality smaller or equal to 60mg as criterion of acceptability.Obtain described each sediment quality according to ASTM D6335 for spreadsheet engine oil.And, utilize SHELL four ball millings consumption to test the abrasion resistance of estimating for spreadsheet engine oil, note did zero when abrasion resistance was good, note work when bad *.In addition, utilize the SRV rub(bing)test to estimate the fuel-economizing that supplies spreadsheet engine oil, note was made ◎ when fuel-economizing was good especially, and note does zero when good, remember when bad to do *.These be the results are shown in the table 2.
[table 2]
| Embodiment 1 | Embodiment 2 | Comparative example 1 | Comparative example 2 | Comparative example 3 | Comparative example 4 | Comparative example 5 | |
| TEOST 33C sediment quality (mg) | 41.1 | 41.2 | 33.5 | 57.3 | 44.6 | 24.5 | 25.2 |
| Abrasion resistance | ○ | ○ | ○ | ○ | ○ | ○ | × |
| Fuel-economizing | ◎ | ◎ | ○ | ◎ | ◎ | × | ○ |
Above result shows, shown in the embodiment mineral oil and/or synthetic be in the base oil, the P based compound that contains ZnDTP at least of 0.005 quality %～0.070 quality % is counted in allotment with the P composition, and make with the MoDTC that the Mo composition is counted 0.030 quality %～0.075 quality %, and 0.5 * P+Mo is adjusted into smaller or equal to 0.075 the lubricant composition for internal combustion engine sediment quality in TEOST 33C test, than further having reduced more than three one-tenth or three one-tenth smaller or equal to 60mg of ILSAC GF-2 prescribed by standard, as seen the high temperature deposition of this lubricant composition for internal combustion engine is functional.In addition as can be known, because the allotment of high density ground has MoDTC, so the fuel-economizing excellence.
On the other hand as can be known, the value of 0.5 * P+Mo is greater than in 0.075 the comparative example 2 and comparative example 3, and sediment quality is bigger, the high temperature deposition poor performance.In addition, though it is less not allocate the value of comparative example 4 0.5 * P+Mo of MoDTC, the high temperature deposition excellent performance, fuel-economizing is poor.In addition, though it is less not allocate the value of comparative example 5 0.5 * P+Mo of ZnDTP, the high temperature deposition excellent performance, abrasion resistance is poor.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (5)
1, a kind of lubricant composition for internal combustion engine, it is characterized in that, its be mineral oil and/or synthetic be in the base oil, the alkaline-earth metal that allotment is counted 0.12 quality %～0.24 quality % with metal ingredient is a sanitising agent, the phosphorus that contains zinc dialkyl dithiophosphate at least of counting 0.005 quality %～0.070 quality % with phosphorus composition is additive, and make with the molybdenum dithiocarbamate that the molybdenum composition is counted 0.030 quality %～0.075 quality %, and described phosphorus is that the phosphorus composition of additive and the molybdenum composition of described molybdenum dithiocarbamate satisfy the represented condition of following formula (1):
0.5×P+Mo≤0.075 (1)
In the formula, P represents that phosphorus is the ratio in quality % of the phosphorus composition of additive in the lubricating oil composition, and Mo represents the ratio in quality % of the molybdenum composition of the molybdenum dithiocarbamate in the lubricating oil composition.
2, lubricant composition for internal combustion engine according to claim 1 is characterized in that, contains the described molybdenum dithiocarbamate of counting 0.045 quality %～0.075 quality % with the molybdenum composition.
3, lubricant composition for internal combustion engine according to claim 1 is characterized in that, containing the described phosphorus of counting 0.005 quality %～0.050 quality % with phosphorus composition is additive.
4, lubricant composition for internal combustion engine according to claim 1 is characterized in that, containing the described alkaline-earth metal of counting 0.15 quality %～0.20 quality % with metal ingredient is sanitising agent.
5, lubricant composition for internal combustion engine according to claim 1 is characterized in that, the kinematic viscosity of described base oil in the time of 100 ℃ is 3.5mm
2/ s～5.0mm
2/ s, viscosity index is 110～160.
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|---|---|---|---|
| JP2007149,308 | 2007-06-05 | ||
| JP2007149308A JP5214173B2 (en) | 2007-06-05 | 2007-06-05 | Lubricating oil composition for internal combustion engines |
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|---|---|
| CN101319163A true CN101319163A (en) | 2008-12-10 |
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| CN103068955A (en) * | 2010-08-24 | 2013-04-24 | 株式会社Adeka | Lubricant composition for internal combustion engines |
| CN108699480A (en) * | 2015-12-07 | 2018-10-23 | 埃克森美孚研究工程公司 | Lubricant oil composite |
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| JP5465938B2 (en) * | 2009-07-03 | 2014-04-09 | シェブロンジャパン株式会社 | Lubricating oil composition for internal combustion engines |
| JP6296503B2 (en) * | 2014-09-05 | 2018-03-20 | 株式会社Adeka | Method for increasing self-ignition point of engine oil of direct injection engine with supercharger, and self-ignition point increasing agent for engine oil of the same engine |
| JP6822895B2 (en) * | 2017-05-02 | 2021-01-27 | Ｅｍｇルブリカンツ合同会社 | Lubricating oil composition |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07316577A (en) * | 1994-05-20 | 1995-12-05 | Tonen Corp | Lubricant oil composition |
| JP2001354987A (en) * | 2000-06-14 | 2001-12-25 | Asahi Denka Kogyo Kk | Lubricant composition |
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2007
- 2007-06-05 JP JP2007149308A patent/JP5214173B2/en active Active
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2008
- 2008-05-28 CN CNA2008100982508A patent/CN101319163A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103068955A (en) * | 2010-08-24 | 2013-04-24 | 株式会社Adeka | Lubricant composition for internal combustion engines |
| CN108699480A (en) * | 2015-12-07 | 2018-10-23 | 埃克森美孚研究工程公司 | Lubricant oil composite |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2008303241A (en) | 2008-12-18 |
| JP5214173B2 (en) | 2013-06-19 |
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Application publication date: 20081210 |