CN1247219A - Four-stroke engine oil compsns. for two-wheeled motorcycle - Google Patents
Four-stroke engine oil compsns. for two-wheeled motorcycle Download PDFInfo
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Abstract
A 4-cycle engine oil composition for two wheelers, in which the base oil using a kinematic viscosity below 100 DEG C of 3-10 mm2/s and a viscosity index of 120 or higher of a hydrocarbon lube base oil or using a mixed base oil containing at least 15 mass % above lube base oil and further contains (A) a zinc dialkyldithiophosphate, (B) a metal-based detergent, (C) an ashless dispersant, (D) a friction modifier, and (E) a viscosity index improver for modifying the kinematic viscosity of the composition below 100 DEG C to 9.3-16.5 mm2/s. A 4-cycle engine oil composition for two wheelers can be obtained with excellent reduction effect of oil consumption and saving fuel consumption.
Description
The present invention relates to a kind of two-wheel motorcycle 4 stroke engine oil compositions, in more detail, relate to a kind of reduction consumption butyrous effect and the good two-wheel motorcycle of fuel economy 4 stroke engine oil compositions of two-wheel 4 two-stroke engines.
Compare with the automobile of four-wheel, even use 4 identical two-stroke engines, two-wheel motorcycle also has the engine revolution height, further makes the also high feature of temperature of combustion.Therefore, if existing automobile is used for two-wheel motorcycle 4 two-stroke engines with 4 stroke engine oils, oil consumption severity then is discharged into that oil content increases in the waste gas in the atmosphere, as its countermeasure, and strong request improvement engine oil.
The objective of the invention is to, provide a kind of oil consumption that has concurrently few and improve two-wheel motorcycle 4 stroke engine oil compositions of good etc. the superperformance of fuel economy effect.
In order to achieve the above object, two-wheel motorcycle of the present invention is with in 4 stroke engine oil compositions, and the kinetic viscosity under base oil uses 100 ℃ is 3～10mm
2This base oil that/s and viscosity index contain in the hydro carbons lubricant base more than 120 or use accounts for the mixed base oil more than the base oil total amount 15 quality %, and contains following composition:
(A) zinc dialkyl dithiophosphate,
(B) metal be purification agent,
(C) ashless dispersant,
(D) low friction compound,
(E) making the kinetic viscosity of composition under 100 ℃ is 9.3～16.5mm
2The viscosity index improver of/s.
Below, illustrate in greater detail content of the present invention.
Two-wheel motorcycle of the present invention is with in 4 stroke engine oil compositions, and base oil is that the kinetic viscosity under 100 ℃ is 3～10mm
2/ s and viscosity index are at the hydro carbons lubricant base more than 120 or contain the mixed base oil that accounts for this base oil more than the base oil total amount 15 quality %.
As said hydro carbons lubricant base herein, for example can use, lubricating oil distillate to paraffin series crude oil or process air distillation of naphthenic acid crude oil and underpressure distillation acquisition carries out hydrofining, solvent treatment, dewaxing, clay-filtered, refinement treatment more than a kind or 2 kinds such as acid-alkali refining is (under the occasion of carrying out refinement treatment more than 2 kinds, each refinement treatment can be by sequential combination arbitrarily, also can change condition, identical refinement treatment is repeated for several times) the paraffin series mineral oil that obtained, naphthenic acid is the mineral oils lubricant base of mineral oil and normal alkane etc., and poly-alpha olefins (polybutene, 1-octene oligopolymer, 1-decene oligopolymer etc.), isoparaffin, alkylbenzene, the synthetic oil class lubricating oil base oil of alkylnaphthalene etc.
In these hydrocarbon base oils, consider the base oil that forms with mixed arbitrarily more than a kind or 2 kinds that preferably uses from following (a) among the present invention and select (b) from the aspect that oil consumption and fuel economy are good:
(a) mineral oil of aromatic series total content below 15 quality %,
(b) polymkeric substance of the alkene of carbonatoms 2～16 or its hydride.
(a) higher limit of the aromatic series total content of composition is 15 quality %, is preferably 10 quality %, more preferably 7 quality %.When the aromatic series total content surpassed higher limit, the oxidative stability of engine oil composition may worsen.(a) there is no particular limitation for the lower value of the aromatic series total content of composition, the aromatic series total content is 0 quality % or during greater than 0 quality %～less than 2 quality %, the greasy filth that produces in the use is difficult to be dissolved in the engine oil composition, and therefore, the aromatic series total content is preferably more than 2 quality %.
Should illustrate, said herein aromatic series total content be meant with among the ASTM D 2549 regulation, Standard Test Method for Separation of RepresentativeAromatics and Nonaromatics Fractions of High-Boiling Oils byElution Chromatography is the content of the aromatic fraction (aromaticsfraction) of standard test, generally, contain alkylbenzene in this aromatic fraction (aromaticsfraction), alkylnaphthalene, anthracene, phenanthrene and their alkylide, the compound that forms by four above phenyl ring condensations, perhaps pyridines, quinoline, phenol, the compound with heteroaromatic of aphthols etc. etc.
Above-mentioned (a) composition can adopt known any means manufacturing.For example, can adopt a kind of like this method to make: will be for example:
1.: the distillate that paraffin base system crude oil and/or mixing base system crude oil obtain through the normal pressure distillation
2.: the underpressure distillation distillate (WVGO) of the air distillation residual oil of paraffin base system crude oil and/or mixing base system crude oil
3.: 1. and/or mild hydrocracking handling oil 2.
4.: the mixing oil of from 1.～3., selecting of oil product more than 2 kinds
5.: deasphalted oil 1., 2., 3. or 4. (DAO)
6.: mild hydrocracking handling oil 5.
7.: the mixing oil of selecting from 1.～6. of oil product more than 2 kinds is as stock oil, this stock oil is directly refining, reclaim lubricating oil distillate, perhaps from above-mentioned raw materials oil, reclaim lubricating oil distillate, this lubricating oil distillate of re-refining can further reclaim lubricating oil distillate as required from this refining thing.
Refining for above-mentioned raw materials oil or lubricating oil distillate can adopt means arbitrarily, for example, can adopt following method separately or with its combination:
The hydrofining of (1) hydrogenation decomposition, hydrogenation processing etc.
(2) solvent treatment of furfural solvent extraction etc.
(3) dewaxing treatment of solvent dewaxing or contact dewaxing etc.
(4) with acidic white earth or atlapulgite etc. carry out clay-filtered
The acid-alkali refining of (5) sulfuric acid scrubbing, caustic soda washing etc. adopts in combination under the occasion of process for purification more than 2 kinds, can also can repeat identical process for purification more than 2 times with each process for purification by making up in proper order arbitrarily.
As (a) composition, particularly consider preferred the use to carrying out the hydrogenation disaggregating treatment from 1. above-mentioned～stock oil of selecting 6. or its lubricating oil distillate and carrying out that dewaxing treatment and solvent treatment are handled and the mineral oil that obtains to its product or to the lubricating oil distillate that from this product, reclaims from the good aspect of oil consumption and fuel economy.
Should illustrate, above-mentioned hydrogenation decompose can add hydroperoxide decomposition catalyst in the presence of, implementing under the condition arbitrarily, usually at total pressure 60～250kg/cm
2, 350～500 ℃ of temperature, LHS 0.1～2.0 hr
-1Reaction conditions under, make rate of decomposition reach 40 quality % and above-mentioned stock oil or its lubricating oil distillate hydrogenation decomposed abovely.As the activeconstituents that adds hydroperoxide decomposition catalyst, can use for example from metal, their oxide compound and sulfide such as molybdenum, chromium, tungsten, vanadium, platinum, nickel, copper, iron, cobalt, select more than a kind or 2 kinds, also can as required these activeconstituentss be supported on the carriers such as silica-alumina, activated alumina, zeolite.In addition, during for hydrogenation degradation production or its lubricating oil distillate execution dewaxing treatment and solvent treatment processing, can at random select the order and the number of processes of these two processing.Said herein dewaxing treatment comprises solvent dewaxing and contacts two kinds of methods of dewaxing.
On the other hand, above-mentioned (b) composition uses olefin polymer or its hydride.Herein, olefin polymer is meant the homopolymer of carbonatoms 2～16, preferred 2～12 alkene and the multipolymer between the above-mentioned alkene, this multipolymer can be random copolymers, alternating copolymer or segmented copolymer any.Forming the olefinic monomer of olefin polymer, can be alpha-olefin, also can be non-end group alkene, can be normal olefine, also can be branched-chain alkene.
If illustrate the alkene that can be used for making olefin polymer of the present invention particularly, can enumerate ethene, propylene, 1-butylene, 2-butylene, iso-butylene, amylene, hexene, heptene, octene, nonene, decene, undecylene, dodecylene, tridecylene, tetradecene, 15 carbenes, cetene (any all can be straight chain or side chain, all can be alpha-olefin or non-end group alkene) and their mixture etc., wherein, preferably use ethene, propylene, 1-butylene, 2-butylene, iso-butylene, the 1-octene, 1-decene, 1-dodecylene and composition thereof.
These olefin polymers can adopt the arbitrary method manufacturing.For example, can not use catalyzer and adopt the thermal response manufacturing, in addition, can use like this some known catalyzer etc. that above-mentioned alkene homopolymerization or copolymerization are made.Said catalyzer comprises: organic peroxide catalyst of benzoyl peroxide etc.; The Friedel-Crafts type catalyzer of aluminum chloride, aluminum chloride-polyvalent alcohol system, aluminum chloride-titanium tetrachloride system, aluminum chloride-alkyl tin halide system, boron fluoride etc.; The Ziegler type catalyzer of organic chloride aluminium-titanium tetrachloride system, organoaluminum-titanium tetrachloride system etc.; The metallocene type catalyst of aikyiaiurnirsoxan beta-zirconocene system, ionic compound-zirconocene system etc.; The Lewis acid complex type catalyzer of aluminum chloride-alkali system, boron fluoride-alkali system etc. etc.
(b) composition can use above-mentioned olefin polymer, but because this polymkeric substance has two keys usually, considers its thermostability and oxidative stability, preferably with the double-bond hydrogenation in the polymkeric substance, the hydride of the olefin polymer that generates is used as (b) composition.In order to obtain the hydride of olefin polymer, can adopt suitable method, for example, can be in the presence of known hydrogenation catalyst with hydrogen to the olefin polymer hydrogenation, make the two keys that exist in the olefin polymer saturated and obtain.In addition,, can not need, make olefinic polymerization and the double-bond hydrogenation that exists in the polymkeric substance is finished in 1 operation through olefinic polymerization and 2 operations of hydrogenation of polymer by selecting employed catalyzer.
In operable olefin polymer or its hydride, in thermostability and oxidative stability, viscosity-temperature profile, the aspect that low-temperature fluidity etc. are good, as (b) composition optimal ethylene-propylene copolymer, polybutene (B-B (the 1-butylene of by-product during by the petroleum naphtha thermolysis, the mixture of 2-butylene and iso-butylene) cut is through the multipolymer of polymerization acquisition), 1-octene oligopolymer, the 1-decene oligopolymer, 1-dodecylene oligopolymer and their hydride, also comprise their mixture etc., especially, more preferably ethylene-propylene copolymer hydride, polybutene hydride, 1-octene oligopolymer hydride, 1-decene oligopolymer hydride, 1-dodecylene oligopolymer hydride and their mixture.
Should illustrate that as the synthin base oil of lubricating oil with commercially available ethylene-propylene copolymer, polybutene and poly-alpha olefins etc. of base oil, generally, its pair key has been hydrogenated, also these commercially available products can be used as (b) composition now.
The kinetic viscosity of hydro carbons lubricant base of the present invention under 100 ℃, its lower value is 3mm
2/ s is preferably 4.0mm
2/ s, on the other hand, higher limit is 10mm
2/ s is preferably 6.0mm
2/ s.The not enough 3mm of kinetic viscosity under 100 ℃
2Under the occasion of/s, oil consumption is poor.On the other hand, surpass 10mm
2Under the occasion of/s, low temperature viscosity characteristic and fuel economy are poor, all are not preferred therefore.In addition, its viscosity index is more than 120, to be preferably more than 125.Under the occasion of the viscosity index less than 120 of hydro carbons lubricant base, because oil consumption is poor, thereby bad.
As two-wheel motorcycle of the present invention with the base oil in 4 stroke engine oil compositions, can use hydro carbons lubricant base separately, also can use with the total amount of base oil and contain mixed base oil more than this base oil 15 quality %, more than the preferred 20 quality % as benchmark with above-mentioned proterties.
Should illustrate, use under the occasion of mixed base oil,, can mix various lubricant bases for above-mentioned hydro carbons lubricant base.
There is no particular limitation for these lubricant bases, so long as use as common lubricant base, then can use no matter mineral oils still synthesizes oils.
As the mineral oils lubricant base, specifically, for example can use lubricating oil distillate that crude oil atmospheric distillation and underpressure distillation are obtained by with solvent deasphalting, solvent extraction, hydrogenation decomposition, solvent dewaxing, contact the oil product of the refining paraffin series that forms of combination that refinement treatment such as dewaxing, hydrofining, sulfuric acid scrubbing, clay treatment suit, cycloalkanes hydrocarbon system etc. and normal alkane etc.
In addition, as synthetic class lubricating oil base oil, can use for example poly-alpha olefins (polybutene particularly, 1-octene oligopolymer, 1-decene oligopolymer etc.), isoparaffin, alkylbenzene, alkylnaphthalene, diester (pentanedioic acid two (tridecyl) ester, hexanodioic acid two 2-ethylhexyls, diisodecyl adipate, hexanodioic acid two (tridecyl) ester, sebacic acid two 2-ethylhexyls etc.), tribasic ester (trimellitate etc.), polyol ester (sad trihydroxymethylpropanyl ester, the n-nonanoic acid trihydroxymethylpropanyl ester, the tetramethylolmethane 2-ethylhexanoate, tetramethylolmethane pelargonate etc.), polyether polyols, the dialkyl group diphenyl, polyphenylene oxide etc.
Should illustrate that these mineral oils base oils and synthetic class base oil can use separately, also can make up with blending ratio arbitrarily and use from wherein selecting base oil more than 2 kinds.
In addition, the viscosity of these lubricant bases is arbitrarily, and from oilness, cooling property (removing hot) is good and stir aspects such as frictionloss that resistance causes is few, the kinetic viscosity under wishing usually to use 40 ℃ is preferably 5～150mm
2/ s, 10～110mm more preferably
2The base oil of/s.
Two-wheel motorcycle of the present invention is a zinc dialkyl dithiophosphate with (A) composition in 4 stroke engine oil compositions.
As zinc dialkyl dithiophosphate, can enumerate the compound of for example following general formula (1) expression etc. particularly.
In the formula, R
1, R
2, R
3And R
4Can be identical or different separately, be carbonatoms 2～18, preferred 3～8 straight or branched alkyl, can enumerate ethyl, propyl group, butyl, amyl group, hexyl, heptyl, octyl group, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl etc. particularly, they can be straight chained alkyl or branched-chain alkyl.They can be primary alkyl, secondary alkyl or tertiary alkyl.
Introducing R
1, R
2, R
3And R
4The time, sometimes may be the mixture of alpha-olefin as raw material, under this occasion, (A) composition is made of the mixture of the different zinc dialkyl dithiophosphate of alkyl structure.
As preferred zinc dialkyl dithiophosphate, can enumerate dipropyl zinc dithiophosphate, zinc dibutyldithiophosphate particularly, (these alkyl can be the straight chain shapes to diamyl disulfide for zinc phosphate, dihexyl zinc dithiophosphate, diheptyl zinc dithiophosphate, dioctyl zinc dithiophosphate, also can be chain) and their mixture etc., preferably use the carbonatoms (carbonatoms 3～8) and/or the different zinc dialkyl dithiophosphate of structure of alkyl in 1 molecule.
Two-wheel motorcycle of the present invention is with in 4 stroke engine oil compositions, and (A) content of composition is arbitrarily, is benchmark with the total composition usually, is 0.5～2.0 quality %, is preferably 0.5～1.5 quality %, more preferably 0.6～1.2 quality %.(A) under the occasion that contains quantity not sufficient 0.5 quality % of composition, frictional coefficient improves after the engine oil deterioration, therefore can not keep low fuel expense property, and surpass under the occasion of 2.0 quality %, may disadvantageous effect be arranged to discharging waste gas.
Two-wheel motorcycle of the present invention is that metal is a purification agent with (B) composition in 4 stroke engine oil compositions.
As metal is purification agent, can use the metal that can be used as lubricating oil is any compound that purification agent uses, and for example can enumerate the metal of selecting in alkaline-earth metal sulfonate, alkaline-earth metal phenates, the alkaline-earth metal salicylate more than a kind or 2 kinds particularly is purification agent etc.
Alkaline-earth metal sulfonate is alkali earth metal salt, particularly magnesium salts and/or the calcium salt of alkyl aryl sulfonate that molecular weight 1300～1500, preferred 400～700 alkyl aromatic compound sulfonation are obtained, preferably uses calcium salt.
As the abovementioned alkyl aromatic sulphonic acid, can enumerate so-called mahogany acid and synthetic sulfonic acid etc. particularly.
As said mahogany acid herein, the general so-called mahogany acid that aromatics sulfonation with mineral oil lubricating oil distillate alkyl forms or by-product when making white oil etc. that uses.As synthetic sulfonic acid, can use for example detergent raw material alkylbenzene factory by-product is obtained or polyolefine alkylation in benzene obtained, has sulfonic acid that the alkylbenzene sulfonation of straight chain shape or branched-chain alkyl forms or sulfonic acid that alkylnaphthalene sulfonation such as dinonyl naphthalene are formed etc.Sulphonating agent as with these alkyl aromatic compound sulfonation the time has no particular limits, and uses oleum or sulphur trioxide usually.
As the alkaline-earth metal phenates, can enumerate alkali earth metal salt, particularly magnesium salts and/or the calcium salt of the Mannich reaction thing of alkylphenol, sulfenyl phenolate, alkylphenol, can enumerate the compound shown in for example following general formula (2)～(4).
In the formula, R
5, R
6, R
7, R
8, R
9And R
10Can be identical or different, represent carbonatoms 4～30, preferred 6～18 straight or branched alkyl respectively, M
1, M
2And M
3Represent alkaline-earth metal, preferred calcium and/or magnesium respectively, x represents 1～2 integer.
In the following formula, as R
5, R
6, R
7, R
8, R
9And R
10Can enumerate butyl, amyl group, hexyl, heptyl, octyl group, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, eicosyl, heneicosyl, docosyl, tricosyl, tetracosyl, pentacosyl, ceryl, heptacosyl, octacosyl, nonacosyl, triacontyl etc. particularly, they can be straight chained alkyl or branched-chain alkyl.They can be primary alkyl, secondary alkyl or tertiary alkyl.
As the alkaline-earth metal salicylate, can enumerate the alkali earth metal salt of alkyl salicylate, particularly magnesium salts and/or calcium salt, can enumerate the compound shown in for example following general formula (5).
In the formula, R
11Expression carbonatoms 4～30, preferred 6～18 straight chained alkyl, M
4The expression alkaline-earth metal, preferred calcium and/or magnesium.
As R
11Can enumerate butyl, amyl group, hexyl, heptyl, octyl group, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, eicosyl, heneicosyl, docosyl, tricosyl, tetracosyl, pentacosyl, ceryl, heptacosyl, octacosyl, nonacosyl, triacontyl etc. particularly, they can be straight chained alkyl or branched-chain alkyl.They can be primary alkyl, secondary alkyl or tertiary alkyl.
In addition, as alkaline-earth metal sulfonate, alkaline-earth metal phenates and alkaline-earth metal salicylate, not only comprise and make the abovementioned alkyl aromatic sulphonic acid, alkylphenol, sulfenyl phenolate, the Mannich reaction thing of alkylphenol, alkyl salicylates etc. directly and the alkali reaction of the alkaline-earth metal of the oxide compound of alkaline-earth metals such as magnesium and/or calcium or oxyhydroxide etc. or make an alkali metal salt that becomes sodium salt or sylvite etc. earlier, neutrality (normal salt) the alkaline-earth metal sulfonate that obtains with method such as alkali earth metal salt displacement again, neutral (normal salt) alkaline-earth metal phenates and neutrality (normal salt) alkaline-earth metal salicylate, but also neutral alkaline-earth metal sulfonate is heated in the existence that is included in water down, the alkali base great soil group metal sulfonate that neutral alkaline-earth metal phenates and neutral alkaline-earth metal salicylate obtain with the alkali of superfluous alkali earth metal salt or alkaline-earth metal, alkali base great soil group metal phenates and alkali base great soil group metal salicylate salt perhaps make neutral alkaline-earth metal sulfonate in the presence of carbonic acid gas, the hyperalkaline alkaline-earth metal sulfonate that neutral alkaline-earth metal phenates and neutral alkaline-earth metal salicylate obtain with the alkali reaction of alkaline-earth metal, hyperalkaline alkaline-earth metal phenates and hyperalkaline alkaline-earth metal salicylate.
As said purification agent among the present invention, can use above-mentioned neutral alkali earth metal salt, alkaline alkali earth metal salt, hyperalkaline alkali earth metal salt and their mixture etc.
Metal is a purification agent, generally, sells on market or acquisition easily with the state of light lubricating oil basis wet goods dilution, wishes that generally using its metal content is 1.0～20 quality %, the purification agent of preferred 2.0～16 quality %.The metal that uses among the present invention is that the total basicnumber of purification agent is arbitrarily, considers from oxidation-resistance and the good viewpoint of fuel economy, wishes that usually using total basicnumber is the purification agent of 30～400mgKOH/g, preferred 150～300mgKOH/g.
Should illustrate that said total basicnumber is meant that with 7. of " petroleum product and the lubricating oil-in and valency test method " of JIS K2501 (1992) serve as total basicnumber according to the perchloric acid method of mensuration herein.
Two-wheel motorcycle of the present invention is arbitrarily with the content of (B) composition in 4 stroke engine oil compositions, is benchmark with the total composition usually, is 1.0～10.0 quality %, is preferably 1.0～8.0 quality %, more preferably 1.5～5.0 quality %.(B) under the occasion that contains quantity not sufficient 1.0 quality % of composition, frictional coefficient improves after the engine oil deterioration, can not keep low fuel expense property, and surpass under the occasion of 10.0 quality %, reduces the effect possible deviation of fuel cost.
Two-wheel motorcycle of the present invention is an ashless dispersant with (C) composition in 4 stroke engine oil compositions.
Ashless dispersant be generally number-average molecular weight 900～3500, preferred 1000～2000 have a polybutylene-based compound, specific examples can be enumerated polybutylene-based succinimide, polybutylene-based benzylamine, polybutylene-based succinate or their mixture etc.
As the example of polybutylene-based succinimide, can enumerate the double imide shown in single imide shown in the following general formula (6) or the general formula (7) etc.
In general formula (6) and the general formula (7), R
12, R
13And R
14Represent respectively number-average molecular weight 900～3500, preferred 1000～2000 polybutylene-based, a and b represent 1～5 integer respectively.
As the example of polybutylene-based benzylamine, can enumerate the compound shown in the following general formula (8).
In the general formula (8), R
15And R
16Represent respectively number-average molecular weight 900～3500, preferred 1000～2000 polybutylene-based, c represents 1～5 integer.
As the example of polybutylene-based succinate, can enumerate the compound shown in the following general formula (9).
In the general formula (9), R
17The expression number-average molecular weight 900～3500, preferred 1000～2000 polybutylene-based.
In addition, as (C) of the present invention composition, the so-called sour modified compound that the polyprotonic acid of carbonatomss 2～30 such as the monocarboxylic acid (lipid acid etc.) of the nitrogenous compound of above-mentioned polybutylene-based succinimide, polybutylene-based benzylamine, polybutylene-based succinate etc. and carbonatoms 2～30 or oxalic acid, phthalic acid, trimellitic acid, Pyromellitic Acid is had an effect, part or all neutralization of remaining amino and/or imino-and amidation are formed; Make above-mentioned nitrogenous compound and boric acid have an effect, with part or all neutralization of remaining amino and/or imino-and amidation and the so-called boron modified compound that forms; The sulphur modified compound that above-mentioned nitrogenous compound and sulfide is had an effect and form; And the method for modifying more than 2 kinds that will be selected from sour modification, boron modification, sulphur modification makes up, modified compound that above-mentioned nitrogenous compound modification is formed; And their mixture etc.
Two-wheel motorcycle of the present invention is with in 4 stroke engine oil compositions, and (C) content of composition is arbitrarily, is benchmark with the total composition usually, is 2.0～10.0 quality %, is preferably 2.0～8.0 quality %, more preferably 3.0～5.0 quality %.(C) composition contain quantity not sufficient 1.0 quality % the time, can not get sufficient friction reducing effect, and when surpassing 10.0 quality %, may disadvantageous effect be arranged rubber packing material.
Two-wheel motorcycle of the present invention is a low friction compound with (D) composition in 4 stroke engine oil compositions.
As (D) composition, the organo-metallic that can enumerate organic molybdenum etc. is that the ashless of the alcohol of low friction compound or alkyl with at least 1 carbonatoms 6～30 or alkenyl, lipid acid or derivatives thereof, amine or derivatives thereof etc. is low friction compound etc., wherein, preferably use the organic molybdenum of selecting in molybdenum dithiophosphate and the molybdenum dithiocarbamate more than a kind or 2 kinds.
As molybdenum dithiophosphate, can use the compound shown in for example following general formula (10) particularly.
In above-mentioned (10) formula, R
18, R
19, R
20And R
21Can be identical or different separately, be carbonatoms 2～30, preferred carbonatoms 5～18, the more preferably alkyl of the alkaryl etc. of the alkyl of carbonatoms 5～12 or carbonatoms 6～18, preferred carbonatoms 10～15, X
1, X
2, X
3And X
4Be respectively sulphur atom or Sauerstoffatom.Should illustrate that said alkyl comprises primary alkyl, secondary alkyl and tertiary alkyl herein, they can be straight chained alkyls, also can be branched-chain alkyls.
Preferred embodiment as alkyl, can enumerate ethyl, propyl group, butyl, amyl group, hexyl, heptyl, octyl group, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl etc., they can be primary alkyl, secondary alkyl or tertiary alkyl, can be straight chained alkyl, also can be branched-chain alkyl.
Preferred embodiment as alkaryl, can enumerate phenyl, tolyl, ethylbenzene base, propyl phenyl, butylbenzene base, penta phenyl, own phenyl, hot phenyl, nonyl phenyl, last of the ten Heavenly stems phenyl, undecane phenyl, dodecane phenyl etc., this alkyl can be primary alkyl, secondary alkyl or tertiary alkyl, can be straight chained alkyl, also can be branched-chain alkyl.In these alkaryls, comprise whole replacement isomer that alkyl the position of substitution on aryl is different.
As preferred molybdenum dithiophosphate, can enumerate sulfuration diethyldithiophosphoric acid molybdenum particularly, sulfuration dipropyl molybdenum dithiophosphate, the butyl disulfide molybdenum dithiophosphate, the sulfuration diamyl disulfide is for molybdenum phosphate, sulfuration dihexyl molybdenum dithiophosphate, sulfuration dioctyl molybdenum dithiophosphate, sulfuration didecyl molybdenum dithiophosphate, sulfuration two (dodecyl) molybdenum dithiophosphate, sulfuration two (butylbenzene base) molybdenum dithiophosphate, sulfuration two (nonyl phenyl) molybdenum dithiophosphate, sulfuration diethyldithiophosphoric acid oxygen molybdenum, sulfuration dipropyl phosphorodithioic acid oxygen molybdenum, butyl disulfide phosphorodithioic acid oxygen molybdenum, the sulfuration diamyl disulfide is for phosphoric acid oxygen molybdenum, sulfuration dihexyl phosphorodithioic acid oxygen molybdenum, sulfuration dioctyl phosphorodithioic acid oxygen molybdenum, sulfuration didecyl phosphorodithioic acid oxygen molybdenum, sulfuration two (dodecyl) phosphorodithioic acid oxygen molybdenum, sulfuration two (butylbenzene base) phosphorodithioic acid oxygen molybdenum, (alkyl can be straight chained alkyl or branched-chain alkyl to sulfuration two (nonyl phenyl) phosphorodithioic acid oxygen molybdenum, and, the alkyl linked position of alkane phenyl is arbitrarily), and their mixture etc.Should illustrate, as these molybdenum dithiophosphates, the also preferred compound that has the alkyl of different carbonatomss and/or structure in 1 molecule that uses.
On the other hand, as molybdenum dithiocarbamate, can use the compound shown in for example following general formula (11) particularly.
In above-mentioned (11) formula, R
22, R
23, R
24And R
25Identical or different separately, the alkyl of the alkaryl of the alkyl of expression carbonatoms 2～24, preferred carbonatoms 4～13 or carbonatoms 6～24, preferred carbonatoms 10～15 etc., X
5, X
6, X
7And X
8Represent sulphur atom or Sauerstoffatom respectively.Should illustrate that said alkyl comprises primary alkyl, secondary alkyl and tertiary alkyl herein, they can be straight chained alkyls, also can be branched-chain alkyls.
Preferred embodiment as alkyl, can enumerate ethyl, propyl group, butyl, amyl group, hexyl, heptyl, octyl group, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl etc., they can be primary alkyl, secondary alkyl or tertiary alkyl, can be straight chained alkyl, also can be branched-chain alkyl.
Preferred embodiment as alkaryl, can enumerate phenyl, tolyl, ethylbenzene base, propyl phenyl, butylbenzene base, penta phenyl, own phenyl, hot phenyl, nonyl phenyl, last of the ten Heavenly stems phenyl, undecane phenyl, dodecane phenyl etc., this alkyl can be primary alkyl, secondary alkyl or tertiary alkyl, can be straight chained alkyl, also can be branched-chain alkyl.These alkaryls comprise whole replacement isomer that alkyl the position of substitution on aryl is different.
As preferred molybdenum dithiocarbamate, can enumerate sulfuration diethyldithiocar bamic acid molybdenum particularly, sulfuration dipropyl molybdenum dithiocarbamate, the butyl disulfide molybdenum dithiocarbamate, sulfuration diamyl dithiocarbamate molybdenum, sulfuration dihexyl molybdenum dithiocarbamate, sulfuration dioctyl molybdenum dithiocarbamate, sulfuration didecyl molybdenum dithiocarbamate, sulfuration two (dodecyl) molybdenum dithiocarbamate, sulfuration two (butylbenzene base) molybdenum dithiocarbamate, sulfuration two (nonyl phenyl) molybdenum dithiocarbamate, sulfuration diethyldithiocar bamic acid oxygen molybdenum, sulfuration dipropyl dithiocarbamic acid oxygen molybdenum, butyl disulfide dithiocarbamic acid oxygen molybdenum, sulfuration diamyl dithiocarbamate oxygen molybdenum, sulfuration dihexyl dithiocarbamic acid oxygen molybdenum, sulfuration dioctyl dithiocarbamic acid oxygen molybdenum, sulfuration didecyl dithiocarbamic acid oxygen molybdenum, sulfuration two (dodecyl) dithiocarbamic acid oxygen molybdenum, sulfuration two (butylbenzene base) dithiocarbamic acid oxygen molybdenum, (alkyl can be straight chained alkyl or branched-chain alkyl to sulfuration two (nonyl phenyl) dithiocarbamic acid oxygen molybdenum, and, the alkyl linked position of alkane phenyl is arbitrarily), and their mixture etc.Should illustrate, as these molybdenum dithiocarbamates, the also preferred compound that has the alkyl of different carbonatomss and/or structure in 1 molecule that uses.
As (D) of the present invention composition, the also preferred molybdenum dithiophosphate more than a kind selected in the middle of them and the molybdenum dithiocarbamate more than a kind of using is with arbitrary proportion blended mixture.
(D) of the present invention composition is as low friction compound except that above-mentioned organic molybdenum, as mentioned above, can use the alcohol, lipid acid or derivatives thereof, amine or derivatives thereof of alkyl with at least 1 carbonatoms 6～30 or alkenyl etc.
As this alkyl or alkenyl, can be straight chain shape or chain, wish to be carbonatoms 6～30, preferred 9～24 compound.The carbonatoms less than 6 of alkyl or alkenyl or surpass under 30 the occasion, the raising effect of fuel economy may variation.
As this alkyl or alkenyl, can enumerate alkyl such as hexyl, heptyl, octyl group, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, eicosyl, heneicosyl, docosyl, tricosyl, tetracosyl, pentacosyl, ceryl, heptacosyl, octacosyl, nonacosyl, triacontyl (any all can be straight chained alkyl or branched-chain alkyl) etc. particularly; Hexenyl, heptenyl, octenyl, the nonene base, the decene base, undecenyl, dodecenyl succinic, the tridecylene base, the tetradecene base, 15 carbene bases, the cetene base, the heptadecene base, the vaccenic acid base, 19 carbene bases, the eicosylene base, the heneicosene base, two dodecenyl succinic, the tricosene base, the tetracosa carbon thiazolinyl, the ppentacosene base, the cerotene base, the cerotene base, two vaccenic acid bases, 29 carbene bases, (any all can be straight chained alkyl or branched-chain alkyl to the alkenyl of triacontylene base etc., the position of two keys also is arbitrarily), wherein, particularly the viewpoint that the effect that improves from fuel economy is good is considered, preferred especially lauryl, myristyl, palmityl, stearyl, the straight chained alkyl of carbonatomss such as oleyl 12～18 or alkenyl.
As the ashless of the alcohol of alkyl with at least 1 carbonatoms 6～30 or alkenyl, lipid acid or derivatives thereof, amine or derivatives thereof etc. is low friction compound, particularly preferred example is to have the straight chained alkyl of carbonatoms 12～18 or the compound of straight alkenyl, can enumerate the straight chain aliphatics alcohols of lauryl alcohol, tetradecyl alcohol, palmityl alcohol, stearyl alcohol, oleyl alcohol etc. particularly; Lauric acid, tetradecanoic acid, palmitinic acid, stearic acid, oleic acid, by the straight chain fatty acid of various grease deutero-straight chain fatty acids (coco-nut oil fatty acid etc.) etc.; The monohydroxy-alcohol of these straight chain fatty acids and carbonatoms 1～10 or the ester of polyvalent alcohol (comprising the part ester); Acid amides or salt that the monoamine of these lipid acid and carbonatoms 1～10, diamine, polyamine etc. form; The straight chain fatty amine compound of lauryl amine, lauryl diethylamine, lauryl diethanolamine, dodecyl dipropanolamine, palmityl amine, stearic amine, stearyl tetren, oleyl amine, oleyl trimethylene diamine, oleyl diethanolamine, N-hydroxyethyl oleyl tetrahydroglyoxaline etc.; The oxyalkylene addition compound of these straight chain fatty amine compounds; The salt that these straight chain fatty amine compounds and acid phosphoric acid ester (for example di(2-ethylhexyl)phosphate 2-ethylhexyl), acid phosphorous acid ester (for example phosphorous acid two 2-ethylhexyls) form; The boric acid modified thing that the warps such as salt of the oxyalkylene addition compound of these straight chain fatty amine compounds, straight chain fatty amine compound or straight chain fatty amine compound and (Asia) phosphoric acid ester obtain with acid reaction; Acid amides that the lipid acid of these straight chain fatty amine compounds and carbonatoms 1～10 forms or salt etc.
Two-wheel motorcycle of the present invention is with in 4 stroke engine oil compositions, and (D) content of composition is arbitrarily, is benchmark with the total composition usually, is 0.3～1.5 quality %, is preferably 0.6～1.2 quality %.(A) composition contain quantity not sufficient 0.3 quality % the time, frictional coefficient improves after the engine oil deterioration, can not keep low fuel expense property, and when surpassing 1.5 quality %, clutch slip may take place in humid clutch.
Two-wheel motorcycle of the present invention is a viscosity index improver with (E) composition in 4 stroke engine oil compositions.
As viscosity index improver, can enumerate the graft copolymer of polymethacrylate, olefin copolymer or its hydride, vinylbenzene-diene copolymers, polymethacrylate and olefin copolymer or the mixture of its hydride and polymethacrylate and olefin copolymer or its hydride etc.
As said olefin copolymer herein, its specific examples can be enumerated the multipolymer of the alpha-olefin of ethene and carbonatoms 3～18.In addition,, the diene of carbonatoms 4～10 be can enumerate, divinyl and pentadiene are preferably as the diene in said vinylbenzene-diene copolymers herein.
Polymethacrylate, olefin copolymer or its hydride, vinylbenzene-diene copolymers, and the molecular weight of the graft copolymer of polymethacrylate and olefin copolymer or its hydride is arbitrarily, generally, the weight-average molecular weight of polymethacrylate is 50,000～1,000,000, the weight-average molecular weight of olefin copolymer or its hydride is 10,000～500,000, the weight-average molecular weight of vinylbenzene-diene copolymers is 10,000～1,000,000, the weight-average molecular weight of the graft copolymer of polymethacrylate and olefin copolymer is 50,000～1,000,000.
Two-wheel motorcycle of the present invention is with in 4 stroke engine oil compositions, and (E) content of composition is that to be enough to make the kinetic viscosity of lubricating oil composition under 100 ℃ be 9.3～16.5mm
2/ s, be preferably 9.5～16.3 content.(E) the content deficiency of composition is so that the kinetic viscosity of lubricating oil composition under 100 ℃ is 9.3mm
2During/s, can cause problem aspect the wear resistant of air valve system and variable-speed motor, and be enough to make the kinetic viscosity of lubricating oil composition under 100 ℃ to surpass 16.5mm
2Under the occasion of/s, may make the fuel economy variation.
(E) two-wheel motorcycle changes with the basic oil viscosity of using in 4 stroke engine oil compositions content of composition according to the present invention, and as mentioned above, it is 9.3～16.5mm that this content should be enough to make the kinetic viscosity of lubricating oil composition under 100 ℃
2/ s generally, is a benchmark with the total composition, is 4.0～10.0 quality %, is preferably 6.0～9.0 quality %.
Among the present invention, only in specific base oil, cooperate above-mentioned (A)～(E) composition, just can obtain the effect and the good two-wheel motorcycle of fuel economy 4 stroke engine oil compositions of oil consumption reduction, in order further to improve its various performances, can use the known lubricating oil additive of for example extreme-pressure additive, abrasion performance agent, rust-preventive agent, corrosion inhibitor, yield point depressant, rubber swelling agent, defoamer, tinting material etc. individually or with its several uses that combine.
As extreme-pressure additive and abrasion performance agent, can use for example chalcogenide compound.As chalcogenide compound, can enumerate for example disulfides, olefine sulfide class, vulcanized oil lipid etc. particularly.
As rust-preventive agent, can enumerate for example alkenyl succinic, alkenyl succinate, polyol ester, sulfonated petro-leum, dinonylnaphthalene sulfonic acid salt etc. particularly.
As corrosion inhibitor, can enumerate for example benzotriazole category, thiadiazole, glyoxaline compound etc. particularly.
As pour point depressant (yield point depressant), can enumerate the polymkeric substance of the polymethacrylate that for example is suitable for employed lubricant base etc. particularly.
As defoamer, can enumerate type siloxane of for example dimethyl siloxane and fluorosilicone etc. etc. particularly.
The addition of these additives is arbitrarily, generally, be benchmark with the lubricating oil composition total amount, the content of defoamer is 0.0005～1 weight %, the content of corrosion inhibitor is 0.005～1 weight %, and other content of additive are respectively about 0.1～15 weight %.
[embodiment]
Below, specifically describe content of the present invention according to embodiment and comparative example, but therefore the present invention is not subjected to any qualification.
Embodiment 1～8 and comparative example 1～2
Adjustment has the various compositions of forming shown in each example of table 1 and table 2 (respectively the example shown in the table 1 is mixed into 10W-30 oil, the example shown in the table 2 is mixed into 10W-40 oil), these compositions are carried out performance evaluation shown below, and its result together lists in table 1 and the table 2.
[oil consumption]
Evaporation test with regulation among the DIN 51581 is a standard, after carrying out test in 1 hour under 250 ℃, measures the reduction of oil.
[fuel economy]
Use the two-wheel motorcycle engine of free air delivery 399CC, water-cooled 4 cylinders, under the certain condition of 80 ℃ of water temperatures, 80 ℃ of oil temperature, carry out the vehicle operation test, in the scope of the several 3000～13000rpm of engine rotation, every 1000rpm measures the once crankshaft torque of this moment.Should illustrate that embodiment 1～4 compares with comparative example 1, embodiment 5～8 compares with comparative example 2, all demonstrates the antifriction rate.
Table 1
1) kinetic viscosity 4.1mm
2/ s, viscosity index 1232) kinetic viscosity 6.0mm
2/ s, viscosity index 1323) 1-decene oligopolymer hydride, kinetic viscosity 4.0mm
2/ s, viscosity index 1264) 1-decene oligopolymer hydride, kinetic viscosity 5.6mm
2/ s, viscosity index 1365) kinetic viscosity 4.4mm
2/ s, viscosity index 1056) kinetic viscosity 10.6mm
2/ s, viscosity index 977) total basicnumber 166mgKOH/g two (second month in a season/uncle's propyl group/octyl group) zinc dithiophosphate 9 two (Sec-Hexyl) zinc dithiophosphate 8)), Ca content 5.7 quality %10) total basicnumber 350mgKOH/g, Mg content 7.5 quality %11) the polybutylene-based succinimide of boronation, dimorphism, nitrogen content 2.0 quality %, boron content 0.43 quality %12) ethylene-propylene copolymer hydride sulfuration dioctyl phosphorodithioic acid oxygen molybdenum 13), weight-average molecular weight 260,00014) polymethacrylate, weight-average molecular weight 230,00015) the alkyl polysiloxane amine salt 16 of alkyl phosphate)
| Comparative example 1 | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | |||||
| The API viscosity grade | ??????????????????????10W-30 | ||||||||
| Base oil (is content, the quality % of benchmark with the base oil) | Hydrogenolysis mineral oil-A 1) | ??- | ???18 | ??- | ????75 | ??70 | |||
| Hydrogenolysis mineral oil-B 2) | ??- | ???2 | ??- | ????10 | ??15 | ||||
| PAO-A 3) | ??- | ???- | ??17 | ????- | ??- | ||||
| PAO-B 4) | ??- | ???- | ??3 | ????- | ??- | ||||
| Solvent treatment mineral oil-A 5) | ??100 | ???80 | ??80 | ????15 | ??15 | ||||
| Solvent treatment mineral oil-B 6) | ??- | ???- | ??- | ????- | ??- | ||||
| @100 ℃ of base oil viscosity () mm 2/s | ??4.38 | ???4.37 | ??4.37 | ????4.38 | ??4.37 | ||||
| Base oil viscosity index | ??102 | ???108 | ??108 | ????126 | ??119 | ||||
| Form quality % | Base oil | ??85.044 | ???83.344 | ??83.344 | ????84.724 | ??84.724 | |||
| (A) composition | ZnDTP-A 7) | ??0.58 | ???0.58 | ??0.58 | ????0.58 | ??0.58 | |||
| ZnDTP-B 8) | ??0.31 | ???0.31 | ??0.31 | ????0.31 | ??0.31 | ||||
| (B) composition | Calcium salicylate 9) | ??1.33 | ???1.33 | ??1.33 | ????1.33 | ??1.33 | |||
| Magnesium salicylate 10) | ??0.694 | ???0.694 | ??0.694 | ????0.694 | ??0.694 | ||||
| (C) composition | The boronation succinimide 11) | ??3.0 | ???3.0 | ??3.0 | ????3.0 | ??3.0 | |||
| (D) composition | Low friction compound 12) | ??0.62 | ???0.62 | ??0.52 | ????0.62 | ??0.62 | |||
| (E) composition | Viscosity index improver-A 13) | ??5.72 | ???7.0 | ??7.0 | ????5.72 | ??5.72 | |||
| Viscosity index improver-B 14) | ??1.88 | ???2.3 | ??2.3 | ????2.2 | ??2.2 | ||||
| Other | Extreme-pressure additive 15) | ??0.82 | ???0.82 | ??0.82 | ????0.82 | ??0.82 | |||
| Defoamer 16) | ??0.002 | ???0.002 | ??0.002 | ????0.002 | ??0.002 | ||||
| @100 ℃ of viscous preparations () mm 2/s | ??9.64 | ???9.66 | ??9.66 | ????9.65 | ??9.63 | ||||
| @250 ℃ of [oil consumption] steam output () quality % | ??23.0 | ???21.9 | ??20.6 | ????14.0 | ??12.8 | ||||
| [fuel economy] antifriction rate % | Engine rotation is counted rpm | ??3000 | ??0.00 | ???0.28 | ??0.28 | ????0.70 | ??1.40 | ||
| ??4000 | ??0.00 | ???0.14 | ??0.29 | ????1.01 | ??3.18 | ||||
| ??5000 | ??0.00 | ???0.28 | ??0.57 | ????2.13 | ??3.40 | ||||
| ??6000 | ??0.00 | ???0.14 | ??0.28 | ????2.76 | ??3.59 | ||||
| ??7000 | ??0.00 | ???0.13 | ??0.39 | ????3.48 | ??4.39 | ||||
| ??8000 | ??0.00 | ???0.24 | ??0.24 | ????4.14 | ??5.11 | ||||
| ??9000 | ??0.00 | ???0.11 | ??0.56 | ????4.56 | ??5.44 | ||||
| ??10000 | ??0.00 | ???0.80 | ??1.00 | ????3.00 | ??3.40 | ||||
| ??11000 | ??0.00 | ???0.19 | ??0.39 | ????2.91 | ??3.88 | ||||
| ??12000 | ??0.00 | ???0.10 | ??0.77 | ????3.18 | ??4.53 | ||||
| ??13000 | ??0.00 | ???0.19 | ??0.47 | ????3.02 | ??3.77 | ||||
Table 2
1) kinetic viscosity 4.1mm
2/ s, viscosity index 1232) kinetic viscosity 6.0mm
2/ s, viscosity index 1323) 1-decene oligopolymer hydride, kinetic viscosity 4.0mm
2/ s, viscosity index 1264) 1-decene oligopolymer hydride, kinetic viscosity 5.6mm
2/ s, viscosity index 1365) kinetic viscosity 4.4mm
2/ s, viscosity index 1056) kinetic viscosity 10.6mm
2/ s, viscosity index 977) total basicnumber 166mgKOH/g two (second month in a season/uncle's propyl group/octyl group) zinc dithiophosphate 9 two (Sec-Hexyl) zinc dithiophosphate 8)), ca content 5.7 quality %10) total basicnumber 350mgKOH/g, Mg content 7.5 quality %11) the polybutylene-based succinimide of boronation, dimorphism, nitrogen content 2.0 quality %, boron content 0.43 quality %12) ethylene-propylene copolymer hydride sulfuration dioctyl phosphorodithioic acid oxygen molybdenum 13), weight-average molecular weight 260,000 14) polymethacrylate, weight-average molecular weight 230,00015) the alkyl polysiloxane amine salt 16 of alkyl phosphate)
| Comparative example 2 | Embodiment 5 | Embodiment 6 | Embodiment 7 | Embodiment 8 | |||||
| The API viscosity grade | ?????????????????????????10W-40 | ||||||||
| Base oil (is content, the quality % of benchmark with the base oil) | Hydrogenolysis mineral oil-A 1) | ????- | ??- | ??- | ??56 | ??- | |||
| Hydrogenolysis mineral oil-B 2) | ????- | ??20 | ??- | ??29 | ??- | ||||
| PAO-A 3) | ????- | ??- | ??20 | ??- | ??58 | ||||
| PAO-B 4) | ????- | ??- | ??- | ??- | ??27 | ||||
| Solvent treatment mineral oil-A 5) | ????75 | ??65 | ??52 | ??- | ??- | ||||
| Solvent treatment mineral oil-B 6) | ????25 | ??15 | ??28 | ??15 | ??16 | ||||
| @100 ℃ of base oil viscosity () nm 2/3 | ????5.34 | ??5.34 | ??5.35 | ??5.37 | ??5.33 | ||||
| Base oil viscosity index | ????103 | ??112 | ??106 | ??130 | ??122 | ||||
| Form quality % | Base oil | ????83.344 | ??83.344 | ??83.344 | ??83.344 | ??83.344 | |||
| (A) composition | ZnDTP-A 7) | ????0.58 | ??0.58 | ??0.58 | ??0.58 | ??0.58 | |||
| ZnDTP-B 8) | ????0.31 | ??0.31 | ??0.31 | ??0.31 | ??0.31 | ||||
| (B) composition | Calcium salicylate 9) | ????1.33 | ??1.33 | ??1.33 | ??1.33 | ??1.33 | |||
| Magnesium salicylate 10) | ????0.694 | ??0.694 | ??0.694 | ??0.694 | ??0.694 | ||||
| (C) composition | The boronation succinimide 11) | ????3.0 | ??3.0 | ??3.0 | ??3.0 | ??3.0 | |||
| (D) composition | Low friction compound 12) | ????0.62 | ??0.62 | ??0.62 | ??0.62 | ??0.62 | |||
| (E) composition | Viscosity index improver-A 13) | ????7.0 | ??7.0 | ??7.0 | ??7.0 | ??7.0 | |||
| Viscosity index improver-B 14) | ????2.3 | ??2.3 | ??2.3 | ??2.3 | ??2.3 | ||||
| Other | Extreme-pressure additive 15) | ????0.82 | ??0.82 | ??0.82 | ??0.82 | ??0.82 | |||
| Defoamer 16) | ????0.002 | ??0.002 | ??0.002 | ??0.002 | ??0.002 | ||||
| @100 ℃ of viscous preparations () mm 2/s | ????13.0 | ??13.1 | ??13.1 | ??13.3 | ??13.0 | ||||
| @250 ℃ of [oil consumption] steam output () quality % | ????18.0 | ??16.6 | ??15.2 | ??10.5 | ??9.0 | ||||
| [fuel economy] antifriction rate % | Engine rotation is counted rpm | ??3000 | ????0.00 | ??0.14 | ??0.28 | ??0.70 | ??1.39 | ||
| ??4000 | ????0.00 | ??0.14 | ??0.28 | ??0.99 | ??3.10 | ||||
| ??5000 | ????0.00 | ??0.10 | ??0.14 | ??1.66 | ??2.90 | ||||
| ??6000 | ????0.00 | ??0.13 | ??0.40 | ??2.80 | ??3.60 | ||||
| ??7000 | ????0.00 | ??0.12 | ??0.25 | ??3.24 | ??4.11 | ||||
| ??8000 | ????0.00 | ??0.23 | ??0.23 | ??3.99 | ??4.92 | ||||
| ??9000 | ????0.00 | ??0.21 | ??0.54 | ??4.40 | ??5.26 | ||||
| ??10000 | ????0.00 | ??0.58 | ??1.06 | ??3.00 | ??3.39 | ||||
| ??11000 | ????0.00 | ??0.009 | ??0.38 | ??2.83 | ??3.77 | ||||
| ??12000 | ????0.00 | ??0.19 | ??0.85 | ??3.21 | ??4.53 | ||||
| ??13000 | ????0.00 | ??0.18 | ??0.55 | ??3.00 | ??3.73 | ||||
Find out from the result of table 1 and table 2, the two-wheel motorcycle of embodiments of the invention 1～8 4 stroke engine oil compositions, compare with 2 composition with the comparative example 1 that uses base oil of the present invention base oil in addition, all demonstrate the performance that oil consumption is few and fuel economy is good.
Therefore, two-wheel motorcycle of the present invention 4 stroke engine oil compositions, two aspect of performances that the fuel economy of bringing from the reduction that be short of, oil consumption of existing 4 stroke engine oils with by low friction performance improves also have very big contribution for the reduction of exhaust total amount.
As mentioned above, according to the present invention, can obtain to consume butyrous and reduce effect and the good two-wheel motorcycle of fuel economy 4 stroke engine oil compositions.
Claims (1)
1. two-wheel motorcycle 4 stroke engine oil compositions is characterized in that, the kinetic viscosity under base oil uses 100 ℃ is 3～10mm
2This base oil that/s and viscosity index contain in the hydro carbons lubricant base more than 120 or use accounts for the mixed base oil more than the base oil total amount 15 quality %, and contains following composition:
(A) zinc dialkyl dithiophosphate,
(B) metal be purification agent,
(C) ashless dispersant,
(D) low friction compound,
(E) making the kinetic viscosity of composition under 100 ℃ is 9.3～16.5mm
2The viscosity index improver of/s.
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| Application Number | Priority Date | Filing Date | Title |
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| JP25540998A JP4076634B2 (en) | 1998-09-09 | 1998-09-09 | 4-cycle engine oil composition for motorcycles |
| JP255409/1998 | 1998-09-09 |
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|---|---|
| CN1247219A true CN1247219A (en) | 2000-03-15 |
| CN1126810C CN1126810C (en) | 2003-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 99111783 Expired - Fee Related CN1126810C (en) | 1998-09-09 | 1999-08-11 | Four-stroke engine oil compsns. for two-wheeled motorcycle |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2000087070A (en) | 2000-03-28 |
| CN1126810C (en) | 2003-11-05 |
| JP4076634B2 (en) | 2008-04-16 |
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