WO2005095559A1 - クロスヘッド型ディーゼル機関用シリンダー潤滑油組成物 - Google Patents
クロスヘッド型ディーゼル機関用シリンダー潤滑油組成物 Download PDFInfo
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- WO2005095559A1 WO2005095559A1 PCT/JP2005/006723 JP2005006723W WO2005095559A1 WO 2005095559 A1 WO2005095559 A1 WO 2005095559A1 JP 2005006723 W JP2005006723 W JP 2005006723W WO 2005095559 A1 WO2005095559 A1 WO 2005095559A1
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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
- C10M163/00—Lubricating compositions characterised by the additive being a mixture of a compound of unknown or incompletely defined constitution and a non-macromolecular compound, each of these compounds being essential
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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
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/10—Compounds containing silicon
- C10M2201/1006—Compounds containing silicon used as base material
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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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/02—Hydroxy compounds
- C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
- C10M2207/028—Overbased salts thereof
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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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/28—Amides; Imides
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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
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
- C10M2219/046—Overbasedsulfonic acid salts
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- 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
- C10N2040/252—Diesel engines
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- 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
- C10N2060/00—Chemical after-treatment of the constituents of the lubricating composition
- C10N2060/14—Chemical after-treatment of the constituents of the lubricating composition by boron or a compound containing boron
Definitions
- the present invention relates to a cross-head type cylinder engine lubricating oil composition for a diesel engine. [Background technology]
- Cross-head diesel engines use cylinder oil to lubricate between the cylinder and biston, and system oil to lubricate and cool other parts.
- the cylinder oil maintains the proper viscosity required for lubrication between the cylinder and the piston (piston ring), and the cleanliness required for proper piston and piston ring exercises. Function is required.
- this engine has a problem of cylinder corrosion due to acidic components such as sulfuric acid generated by combustion, because high sulfur fuel is usually used due to its economy. In order to prevent this problem, cylinder oil must also have a function to neutralize acidic components such as sulfuric acid and prevent corrosion.
- Patent Document 1 JP-A-2002-275491
- Patent Document 2 Japanese Patent Publication No. 2002-51 5933
- Patent Document 3 Japanese Patent Publication No. 2002-501974
- Patent Document 4 Japanese Patent Publication No. 2002-500262
- Patent Document 5 Japanese Patent Application Laid-Open No. 2002-241780
- the present invention provides a cross-head type cylinder lubricating oil for diesel engines that has lower cost, improved wear resistance, and improved seizure resistance in addition to conventional performance. It aims to provide cylinder lubricating oil for diesel engines.
- the present inventors have conducted intensive studies to solve the above-mentioned problems, and as a result, it is effective to use a specific boron-containing ashless dispersant in order to further improve the wear resistance and seizure resistance of the cylinder portion. I found something. It was also found that the combined use of an ashless dispersant and a silicone oil of a specific viscosity improved the spreadability of cylinder oil at high temperatures, and further improved the abrasion resistance and seizure resistance of part of the cylinder. Furthermore, they have found that the wear resistance and seizure resistance can be further improved by using an extreme pressure agent together, and have completed the present invention.
- the present invention provides a cross-head type diesel engine cylinder-lubricating oil composition containing (A) an ashless dispersant in a lubricating base oil, wherein (A 1) a boron content of 1 to 5 Mass% or more and / or (B) a silicone oil having a kinematic viscosity at 25 ° C. of 100 to 350 000 mm 2 / s for a cross-head type diesel engine.
- A a boron content of 1 to 5 Mass% or more and / or
- B a silicone oil having a kinematic viscosity at 25 ° C. of 100 to 350 000 mm 2 / s for a cross-head type diesel engine.
- the present invention is the above-described cylinder lubricating oil composition for a crosshead type diesel engine, further comprising (A2) an ashless dispersant other than (A1).
- the present invention also relates to the above-described cross-head type cylinder engine lubricating oil composition for a diesel engine, further comprising (C) an extreme pressure agent. Further, the present invention provides the cylinder lubricating oil composition for a cross-head type diesel engine described above, which is used for a cross-head type diesel engine satisfying at least one of the following conditions. .
- Cylinder wall temperature is 250 ° C or more
- the present invention relates to (A1) an ashless dispersant having a boron content of 1.5% by mass or more, and Z or (B) a kinematic viscosity at 25 ° C. Characterized in that silicone oil of 100 to 350,000 mm 2 Zs is included in a cylinder head cylinder lubricating oil composition for a cross-head type diesel engine. One method is to improve the wear prevention and Z or seizure resistance.
- the present invention will be described in detail.
- the lubricating base oil in the cross-head type diesel engine cylinder lubricating oil composition of the present invention (hereinafter, also simply referred to as lubricating oil composition) is not particularly limited, and mineral oil base oils used in ordinary lubricating oils are used. Oils and / or synthetic base oils can be used.
- a mineral base oil specifically, lubricating oil fractions obtained by depressurizing distillation of atmospheric residual oil obtained by atmospheric distillation of crude oil are subjected to solvent removal, solvent extraction, and hydrocracking. , Solvent dewaxing, hydrorefining, etc., or a method of isomerizing GT L WAX (gas to liquid wax) produced by the Fischer-Tropsch process, etc. And the like.
- the total aromatic content of the mineral base oil is not particularly limited, but is preferably 40% by mass or less, more preferably 30% by mass or less.
- the total aromatic content is satisfactory even at 0% by mass, but is preferably 1% by mass or more, more preferably 5% by mass or more, and more preferably 10% by mass or more from the viewpoint of solubility of the additive. Is more preferable, and particularly preferably 20% by mass or more. If the total aromatic content of the base oil exceeds 40% by mass, it is not preferable because the oxidation stability is poor.
- the above-mentioned wholly aromatic content means the content of the aromatic fraction (aromatic ticfracaction) measured according to ASTM D2549.
- this aromatic fraction includes, in addition to alkylbenzene and alkylnaphthalene, anthracene, phenanthrene, their alkylated compounds, compounds in which four or more benzene rings are condensed, pyridines, quinolines, phenols, and naphthols And compounds having a heteroaromatic such as a class.
- the sulfur content in the mineral base oil is not particularly limited, but is preferably 1% by mass or less, more preferably 0.5% by mass or less.
- the sulfur content may be 0% by mass, preferably 0.1% by mass or more, more preferably 0.2% by mass. / 0 or more.
- the synthetic base oil examples include polybutene or a hydride thereof; polyoctene oligomer, poly- ⁇ -olefin such as 1-decene oligomer, or a hydrogenated product thereof; ditridecyl glutarate, and diethyl ethyl.
- Diesters such as hexyl adipate, disodecyl adipate, ditridecyl adipate, and di-2-ethylhexyl sebacate; trimethylolpropane caprylate, trimethylolpropanperanolegonate, pentaerythritol 1-2 ethynolehexanoate, and pentaerythrate
- Polyol esters such as tonoleperargonate
- copolymers of dicarboxylic acids such as dibutynole maleate and monoolefins having 2 to 30 carbon atoms
- aromatic synthetic oils such as alkyl naphthalene, alkyl benzene, and aromatic esters; And the like.
- a mineral base oil a synthetic base oil, or an arbitrary mixture of two or more lubricating oils selected from these can be used.
- one or more mineral base oils, one or more synthetic base oils, one or more mineral base oils and one or more synthetic base oils examples thereof include a mixed oil with oil.
- the kinematic viscosity of the lubricating base oil is not particularly limited, the kinematic viscosity at the 1 00 ° C is preferably 4 to 5 0 mm 2 Z s, more preferably, 6 ⁇ 40mm 2 Zs, particularly preferably is a 8 ⁇ 3 5 mm 2 / s.
- the kinematic viscosity at 100 ° C of the lubricating base oil exceeds 50 mm 2 Zs, the low-temperature viscosity characteristics will deteriorate, while if the kinematic viscosity is less than 4 mm 2 / s, Since the oil film formation is insufficient, the lubricating properties are poor, and the evaporation loss of the lubricating base oil increases, which is not preferable.
- the lubricating base oil has a kinematic viscosity at 100 ° C of 4 to less than 17 mm 2 / s and / or a kinematic viscosity at 100 ° C of 17 to 50. It preferably contains mm 2 / s of lubricating base oil.
- Examples of the lubricating base oil having a kinematic viscosity at 100 ° C of 4 to less than 17 mm 2 Zs include mineral base oils such as SAE 10 to 40 and synthetic base oils.
- 1 00 as the lubricating base oil of kinematic viscosity at ° C is 1 7 ⁇ 50 mm 2 Z s, for example, SAE 50, Briar preparative mineral base oil, such as stock and synthetic base oils and the like, its kinematic viscosity is preferably 20 mm 2 Z s or more over, more preferably 2 5 mm 2 / s, preferably 40 mm 2 / s or less, and more preferably not more than 35 mm 2 / s.
- a lubricating base oil having a kinematic viscosity at 100 ° C of 4 to less than 17 mm 2 Zs is a main component, for example, 50% by mass or more, more preferably 70% by mass based on the total amount of the base oil. If necessary, a lubricating base oil having a kinematic viscosity at 100 ° C. of 17 to 50 mm 2 s can be blended.
- the evaporation loss of the lubricating base oil is preferably 20% by mass or less, more preferably 16% by mass or less, particularly preferably 10% by mass or less, in terms of NOACK evaporation amount. preferable. If the NOACK evaporation amount of the lubricating base oil exceeds 20% by mass, the lubricating oil evaporation loss becomes large, causing an increase in viscosity and the like.
- the NO ACK evaporation amount is a measurement of the evaporation amount of the lubricating oil measured according to ASTM D5800.
- the viscosity index of the lubricating base oil is not particularly limited, but is preferably 80 or more, more preferably 90 or more so as to obtain excellent viscosity characteristics from low to high temperatures. And more preferably 100 or more.
- the upper limit of the viscosity index is not particularly limited, and is about 13.5 to 180, such as normal paraffin, slack wax, GTL wax, or isomerized isosparaffinic mineral oil, or complex ester base oil or HV.
- I-PAO base oils such as about 150-250 can be used, but from the viewpoint of solubility of additives and storage stability, it is preferably 120 or less, and 110 or less. It is desirable that
- the cylinder lubricating oil composition for a crosshead type diesel engine of the present invention contains (A) an ashless dispersant.
- any ashless dispersant used for lubricating oils can be used.
- a linear or branched alkyl or alkenyl group having 40 to 400 carbon atoms, preferably 60 to 350 carbon atoms can be used.
- Examples include a nitrogen-containing compound or a derivative thereof having at least one in the molecule, a Mannich-based dispersant, or a modified product of immobilized arkeel succinate. At the time of use, one or more kinds arbitrarily selected from these can be blended.
- the alkyl group or alkenyl group may be linear or branched, but is preferably, for example, a derivative derived from an oligomer of an olefin such as propylene, 1-butene, or isobutylene, or a copolymer of ethylene and propylene. Such as a branched alkyl group and a branched alkenyl group.
- ashless dispersant (A) more specifically, for example, one or more compounds selected from the following components (I-11) to (1-3) can be mentioned. .
- Examples of the component (1-1) include a compound represented by the formula (1) or (2).
- R 20 represents an alkyl group or an alkenyl group having 40 to 400, preferably 60 to 350 carbon atoms, and h represents an integer of 1 to 5, preferably 2 to 4.
- R 21 and R 22 each independently represent an alkyl group or an alkenyl group having 40 to 400 carbon atoms, preferably 60 to 350 carbon atoms, and particularly preferably a polybutenyl group.
- I represents an integer of 0 to 4, preferably 1 to 3.
- the (1-1) component includes a so-called mono-type succinic acid imid represented by the formula (1) in which succinic anhydride is added to one end of a polyamine, and a formula in which succinic anhydride is added to both ends of a polyamine.
- the so-called bis-type succinic acid imid represented by (2) is included, and the lubricating oil composition of the present invention may include any of them or a mixture thereof.
- the method for producing the succinic acid imid which is the component (I-11), is not particularly limited.
- a compound having an alkyl group or an alkenyl group having 40 to 400 carbon atoms can be prepared by mixing maleic anhydride with 100 to 200 ° C. By reacting an alkyl succinic acid or an alkenyl succinic acid obtained by the reaction with a polyamine.
- polyamine specifically, diethylene triamine, triethylene tet Lamin, tetraethylenepentamine, pentaethylenehexamine and the like can be exemplified.
- component (1-2) include compounds represented by the formula (3).
- R 23 represents an alkyl group or an alkenyl group having 40 to 400 carbon atoms, preferably 60 to 350 carbon atoms; i represents an integer of 1 to 5, preferably 2 to 4.
- the method for producing benzylamine which is the component (1-2), is not particularly limited.
- a polyolefin such as propylene oligomer, polybutene, or ethylene-olefin copolymer is reacted with phenol to form an alkyl phenol, It can be obtained by reacting formaldehyde with a polyamine such as diethylenetriamine, triethylenetetramine, tetraethylenepentamine, or pentaethylenehexamine by a Mannich reaction.
- component (1-3) examples include compounds represented by the formula (4).
- R 24 represents an alkyl group or an alkenyl group having 40 to 400 carbon atoms, preferably 60 to 350 carbon atoms, and k represents an integer of 1 to 5, preferably 2 to 4.
- the method for producing the polyamine (I-13) is not particularly limited.
- propylene oligomers, polybutene, and polyolefins such as ethylene monoolefin copolymers are chlorinated and then chlorinated with ammonia or ethylenediamine. It can be obtained by reacting a polyamine such as dimethylenetriamine, triethylenetetramine, tetraethylenepentamine, or pentaethylenehexamine.
- Examples of the derivative of the nitrogen-containing compound mentioned as an example of the component (A) include, for example, monocarboxylic acid (fatty acid or the like) having 1 to 30 carbon atoms, oxalic acid, Polycarboxylic acids having 2 to 30 carbon atoms such as phthalic acid, trimellitic acid, and pyromellitic acid or anhydrides thereof, or ester compounds, alkylene oxides having 2 to 6 carbon atoms, hydroxy (poly) oxyalkylene carbonates, and the like To neutralize or amidate some or all of the remaining amino and / or imino groups, so-called denatured compounds by so-called oxygen-containing organic compounds; and to react the above-mentioned nitrogen-containing compounds with boric acid.
- monocarboxylic acid fatty acid or the like
- Polycarboxylic acids having 2 to 30 carbon atoms such as phthalic acid, trimellitic acid, and pyromellitic acid or anhydrides thereof
- ester compounds alkylene oxides having
- a sulfur compound acts on the aforementioned nitrogen-containing compound Sulfur-modified compounds were; and modified by an oxygen-containing organic compound to the nitrogen-containing compounds described above, boron-modified, modified phosphoric acid, modified compound was Align combination of two or more modifying selected from sulfur-modified and the like.
- the lubricating base oil contains (A 1) an ashless dispersant having a boron content of 1.5% by mass or more. It consists of.
- the component (A1) include a boron-modified compound obtained by modifying the above-described (A) ashless dispersant (not boron-modified) with a boron compound such as boric acid or a borate.
- the component (A1) is an ash-containing ash dispersant having a boron content of 1.5% by mass or more, and the boron content is preferably 1.8% by mass or more.
- the component (A1) here may contain 10 to 90% by mass, preferably 30 to 70% by mass of diluent oil (for example, mineral oil, synthetic oil, or the like).
- the boron content in the component usually means the boron content in a state containing the diluent oil. '
- the component (A 1) is preferably a compound obtained by modifying the above-mentioned component (1-1) with a boron compound, and in particular, a bis-type succinic acid imid represented by the above general formula (2)
- the boric acid-modified compound of the ashless dispersant is particularly preferred because it can significantly improve abrasion resistance and seizure resistance.
- the (Al) component has no particular limitation on the mass ratio (B / N ratio) between its boron content and nitrogen content, but is preferably 0.5 to 1, more preferably 0.7 to 0. 9
- BZN ratio the more easily the anti-wear and anti-seizure properties are improved. If the BZN ratio exceeds 1, it is not desirable because there is concern about stability.
- the content of the component (A1) is preferably 0.001 to 0.1% by mass, more preferably 0.0005 to 0.1% by mass, based on the total amount of the composition. It is preferably 0.05% by mass, more preferably 0.01 to 0.04% by mass.
- an ashless dispersant other than the component (A1) or an extreme pressure agent (C) described below is used in combination, sufficient antiwear properties are obtained even if the boron content is reduced to 0.02% by mass or less. It is particularly preferable because seizure resistance can be maintained, coking at a high temperature can be further suppressed, and a low-cost composition can be obtained.
- an ashless dispersant other than the component (A1) for example, an ashless dispersant having a boron content of less than 1.5% by mass or an ashless dispersant not containing boron as described above is blended.
- a bis-type imidized succinic acid-based ashless dispersant represented by the general formula (2) because coking at a high temperature is more easily suppressed.
- the blending amount is not particularly limited, but is preferably 0.005 to 0.1% by mass, more preferably 0.005 to 0.1% by mass, based on the total amount of the composition. 0.005 to 0.05 mass 0 /. More preferably, it is 0.01 to 0.03% by mass.
- Another embodiment of the cross-head type diesel engine cylinder-lubricating oil composition of the present invention comprises: (A) an ashless dispersant in a lubricating base oil; and (B) a kinematic viscosity at 25 ° C. Contains 100 to 350,000 Omms of silicone oil.
- the component (B) in the present invention is silicone oil, and its structure is not particularly limited, and examples thereof include an organopolysiloxane represented by the following general formula (5).
- R represents a hydrocarbon group having 1 to 10 carbon atoms, which may be the same or different.
- the hydrocarbon group having 1 to 10 carbon atoms refers to an alkyl group, an alkenyl group, an aryl group, an alkylaryl group, and an arylalkyl group each having 1 to 10 carbon atoms.
- R is preferably an alkyl group having 1 to 4 carbon atoms, more preferably an alkyl group having 1 or 2 carbon atoms, particularly preferably a methyl group.
- silicone oil examples include dimethyl silicone, dimethyl silicate, trifluoropropyl methyl silicone, and the like.
- Some silicone oils usually have a kinematic viscosity at 25 ° C of less than 0.5 to less than 10 Omm 2 s, but in the present invention, the kinematic viscosity at 25 ° C is 100 to 350,000 mm. It is necessary to have a high viscosity of 2 / s, preferably 300 to 100,000 mm 2 / s, more preferably 1,000 to 100,000 mm 2 Zs, and particularly preferably 2,000. ⁇ 5,000 mm 2 Zs. When the kinematic viscosity at 25 ° C is less than 100 mm 2 / s, the effect of improving the spread of the lubricating oil on the sliding surface at high temperatures is small, and the effect of improving the anti-wear property is small.
- the content of the silicone oil (B) in the lubricating oil composition of the present invention is not particularly limited, but is preferably 1 to 100 ppm by mass, more preferably 5 to 80 ppm by mass, and still more preferably, based on the total amount of the composition. Is from 10 to 60 mass ppm, particularly preferably from 20 to 60 mass ppm, most preferably from 30 to 60 mass ppm. (B) If the content of the component is less than 1 mass ppm, it is difficult to improve the spreadability of the lubricating oil on the sliding surface at high temperatures, and if it exceeds 100 mass ppm, the content is commensurate with the content.
- the lubricating oil composition of the present invention comprises (A) an ashless dispersant and (B) a silicone oil having a kinematic viscosity at 25 ° C of 100 to 000 mm 2 / s.
- the content of the component is 0.005 to 0.4% by mass, preferably 0.01 to 0.2% by mass, more preferably 0.01 to 0.1% by mass, as a nitrogen amount, based on the total amount of the composition. Particularly preferably, it is 0.02 to 0.05 mass% / 0 .
- the ashless dispersant component it is preferable to use a boron-containing ashless dispersant.
- a boron-containing ashless dispersant By using the boron-containing ashless dispersant together with the component (B), the anti-wear property and anti-seizure property are remarkably improved. This is particularly preferred because
- the mass ratio between the boron content and the nitrogen content is not particularly limited, but is preferably 0.5 to 1, more preferably 0.7 to 0. 9
- the content thereof is not particularly limited, but is preferably 0.001 to 0.1 mass as the boron amount based on the total amount of the composition. / 0 , more preferably 0.005 to 0.05 mass%, particularly preferably 0.01 to 0.04 mass%.
- the component (A) has a boron content of 0.5% by mass or more, more preferably 1.0% by mass or more, still more preferably 1.5% by mass or more, and particularly preferably 1.8% by mass or more. It is most desirable to contain a mass% of a boron-containing ashless dispersant, preferably a boric acid-modified compound of alkenyl succinic acid imide, particularly a bis-type boron-containing succinic acid imidic dispersant.
- the boron-containing ashless dispersant having a boron content of 0.5% by mass or more contains a diluent oil (for example, mineral oil, synthetic oil, etc.) of 10 to 90% by mass, preferably 30 to 70% by mass.
- the boron content usually means the boron content in the state including the diluent oil.
- the boron content usually means the boron content in the state including the diluent oil.
- any antiwear agent used in lubricating oils can be used.
- sulfur-based, phosphorus-based, sulfur-phosphorus-based extreme pressure agents and the like can be used.
- phosphites, thiophosphites, dithiophosphites, and trithiophosphites can be used.
- Phosphates, phosphates, thiophosphates, dithiophosphates, trithiophosphates Stels, their amine salts, their metal salts, their derivatives, dithiocarbamate, zinc dithiocarbamate, molybdenum dithioamide, disulfides, polysulfides, sulfides, sulfided oils and the like. . In the present invention, it is preferable to use zinc dithiophosphate and / or polysulfides.
- the content thereof is not particularly limited, but is preferably from 0.05 to 5% by mass, and preferably from 0.1 to 5% by mass, based on the total amount of the composition. To 2% by mass, particularly preferably 0.2 to 1% by mass. / 0 .
- the content is less than 0.1% by mass, the effect of further improving the anti-wear property and the anti-seizure property is small. It is not preferable because the high-temperature cleanliness of the product deteriorates significantly.
- the lubricating oil composition of the present invention is generally used in lubricating oils according to the purpose in order to further improve its performance or to add other required performances, in addition to the above constitution.
- Some optional additives can be further added. Examples of such additives include metal detergents, antioxidants, friction modifiers, viscosity index improvers, corrosion inhibitors, antioxidants, demulsifiers, metal deactivators, and defoamers. And additives such as colorants and the like.
- the metal-based detergent is not particularly limited, and is a known alkali metal or alkaline earth metal sulfonate-based detergent, an alkali metal or alkaline earth metal phenate-based detergent, an alkaline metal or an alkaline metal.
- alkali metal examples include sodium and potassium
- examples of the alkaline earth metal examples include calcium, magnesium, and barium.
- the alkaline earth metal is preferable, and calcium or magnesium is preferable. It is particularly preferred.
- the base number of the metallic detergent is not particularly limited, but is usually 0 to 50 O mg KO HZ g It is more preferably 150 to 450 mg KOH / g, particularly preferably 250 to 45 Omg KOH / g.
- the base number means the base number by the perchloric acid method measured in accordance with Section 7 of JIS K2501 “Petroleum products and lubricating oil-neutralization value test method”.
- the content of the metal-based detergent is not particularly limited, but is usually 1 to 30% by mass, preferably 5 to 25% by mass, based on the total amount of the composition and based on a diluent oil mixture. Preferably it is 10 to 25% by mass or more, more preferably 15 to 25% by mass.
- antioxidants examples include phenol-based and amine-based ashless antioxidants, and copper-based and molybdenum-based metal-based antioxidants. Their content is usually from 0 :! to 5% by mass, based on the total amount of the composition.
- the friction modifier examples include an ashless friction modifier such as a fatty acid ester, an aliphatic amine, and a fatty acid amide, and a metal friction modifier such as molybdenum dithiocarbamate and molybden dithiophosphate. .
- Their content is usually from 0 :! to 5% by mass based on the total amount of the composition.
- the viscosity index improver examples include a polymethacrylate-based viscosity index improver, an olefin copolymer-based viscosity index improver, a styrene-diene copolymer-based viscosity index improver, a styrene / maleic anhydride copolymer-based viscosity index improver, or And polyalkylstyrene-based viscosity index improvers.
- the weight average molecular weight of these viscosity index improvers is usually from 800 to 1,000,000, preferably from 100,000 to 900,000.
- the content of the viscosity index improver is usually 0.1 to 20% by mass based on the total amount of the composition.
- corrosion inhibitor examples include benzotriazole-based, torinoletriazole-based, thiadiazole-based, and imidazole-based compounds.
- Examples of the protective agent include petroleum sulfonate, alkylbenzene sulfonate, Examples include dinonylnaphthalene sulfonate, alkenyl succinate, and polyhydric alcohol ester.
- demulsifier examples include a polyalkylene dalicol-based nonionic surfactant such as polyoxyethylene alkyl ether, polyoxyethylene alkynolephenyl ether, or polyoxyethylene alkyl naphthyl ether.
- metal deactivator examples include imidazoline, pyrimidine derivatives, alkylthiaziazole, mercaptobenzothiazole, benzotriazole or derivatives thereof, 1,3,4-thiadiazole polysulfide, and 1,3,4-thiadiazolinolate.
- metal deactivator examples include 2,5-bisdialkyldithiocarbamate, 2- (anolekyldichio) benzoimidazole, and ⁇ - ( ⁇ -carboxybenzyldithio) propionnitrile.
- the antifoaming agent examples include silicone oil having a kinematic viscosity at 25 ° C of 0.1 to less than 100 mm 2 Zs, an alkenyl succinic acid derivative, an ester of a polyhydroxy aliphatic alcohol and a long-chain fatty acid, and methyl salicylate.
- o-Hydroxybenzyl alcohol anolemminium stearate, potassium oleate, N-dianolexamine nitroamine aminoaminoalkanole, aromatic amine salt of isolaminoleoctyl phosphate, alkyl Alkylene diphosphate, thioether metal derivative, disulfide metal derivative, aliphatic hydrocarbon fluorine compound, triethyl silane, dichlorosilane, alkylphenyl polyethylene glycol ether sulfide, fluoroalkyl ether, etc. .
- the content is usually from 0.005 to 5 mass% for the corrosion inhibitor, the antioxidant and the demulsifier based on the total amount of the composition. /.
- the metal deactivator is usually selected from the range of 0.005 to 1% by mass, and the defoamer is usually selected from the range of 0.0005 to 1% by mass.
- the kinematic viscosity at 10 ° C. of the lubricating oil composition of the present invention is not particularly limited, but is preferably 6 to 50 mm 2 / "s, more preferably 9.3 to 30 mm 2 / s, and particularly preferably.
- Mashiku is 1 2. 5 ⁇ 2 1. 9mm 2 / s .
- the base number of the lubricating oil composition of the present invention is not particularly limited.
- the amount is preferably 5 to 100 mgKOHZg, more preferably 1 OmgKOHZg or more, and further preferably 2 Omg or more.
- the base number indicates a base number measured by ASTM D-2896. .
- the amount of sulfated ash in the lubricating oil composition of the present invention is not particularly limited, but is preferably at least 1.2% by mass, more preferably at least 2% by mass, particularly preferably at least 3% by mass, preferably at least 3% by mass. It is at most 20% by mass, more preferably at most 10% by mass.
- sulfated ash content refers to a value measured by the method specified in JIS K2272, 5. “Test Methods for Sulfated Ash Content”, and is mainly attributable to metal-containing additives.
- the lubricating oil composition of the present invention has excellent spreadability on a sliding surface at a high temperature, is excellent in abrasion prevention and seizure resistance, and is suitable as a lubricating oil composition for a crosshead type diesel engine cylinder.
- the latest model has a large bore size of 7 Ocm or more, an ultra-long stroke with an average piston speed of 8 mZs or more, and even 8.5 mZs or more, and a combustion pressure of net effective pressure (BMEP ) At 1.8MPa or more, moreover 1.9MPa or more, cylinder wall temperature at 250 ° C or more, furthermore 260 ° C or more, especially at 270 ° C or more.
- BMEP net effective pressure
- Lubricating oil compositions of the present invention having compositions shown in Table 1 (Examples 1 to 5), lubricating oil compositions for comparison (Comparative Examples 1 and 2) were prepared.
- the seizure load was measured by the high-speed reciprocating motion tester under the following conditions, and the results are also shown in Table 1.
- the base oil used here was SAE 30 Group I base oil (sulfur content
- Package A is an additive package consisting of only an overbased sulfonate and an overbased phenate, and is added so that the base number of the composition becomes 7 Omg KOH / g.
- Reciprocating speed 100 rpm
- Ring material Flake graphite iron (material used in actual machine)
- Root mean square roughness 0.38 to 0.40 ⁇
- composition of Comparative Example 1 in which the seizure load was as low as about 4 MPa contained the component (B) in a very small amount of 50 mass ppm (0.005 mass%), and the seizure load was 5 MPa. (Example 3) and replaced with boron-free succinic acid imid Table 1 Additive content
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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
Description
Claims
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JP2004101059A JP4606050B2 (ja) | 2004-03-30 | 2004-03-30 | クロスヘッド型ディーゼル機関用シリンダー潤滑油組成物 |
JP2004-101059 | 2004-03-30 | ||
JP2004101060A JP2005281614A (ja) | 2004-03-30 | 2004-03-30 | クロスヘッド型ディーゼル機関用シリンダー潤滑油組成物 |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011077810A1 (ja) * | 2009-12-24 | 2011-06-30 | Jx日鉱日石エネルギー株式会社 | クロスヘッド型ディーゼル機関用シリンダー潤滑油組成物 |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6366298A (ja) * | 1986-09-05 | 1988-03-24 | Matsumura Sekiyu Kenkyusho:Kk | 潤滑油添加剤組成物及びこれを含有する潤滑油組成物 |
JPS63502833A (ja) * | 1986-03-13 | 1988-10-20 | ザ ルブリゾル コ−ポレ−ション | ホウ素含有組成物,およびそれらを含有する潤滑剤および燃料 |
JPH028296A (ja) * | 1988-02-23 | 1990-01-11 | Exxon Chem Patents Inc | マリンディーゼルシリンダ潤滑剤用分散剤 |
JPH03501628A (ja) * | 1988-10-07 | 1991-04-11 | ザ ルブリゾル コーポレーション | 改良された解乳化性を示す潤滑剤および機能流体組成物 |
JPH07102273A (ja) * | 1993-08-11 | 1995-04-18 | Idemitsu Kosan Co Ltd | ディーゼルエンジン用潤滑油組成物及びそれを用いたディーゼルエンジンの潤滑方法 |
JPH07197062A (ja) * | 1993-12-28 | 1995-08-01 | Kao Corp | ディーゼルエンジン用潤滑油添加剤及び潤滑油組成物 |
JPH07197067A (ja) * | 1993-12-28 | 1995-08-01 | Tonen Corp | ディーゼルエンジン用潤滑油組成物 |
JPH0848989A (ja) * | 1994-08-09 | 1996-02-20 | Idemitsu Kosan Co Ltd | 潤滑油組成物 |
JPH08127787A (ja) * | 1994-10-28 | 1996-05-21 | Toray Dow Corning Silicone Co Ltd | 液状組成物 |
JPH10147790A (ja) * | 1996-09-18 | 1998-06-02 | Tonen Corp | 内燃機関用潤滑油組成物 |
JP2002515933A (ja) * | 1997-05-02 | 2002-05-28 | インフィニューム ユーエスエイ リミテッド パートナーシップ | 潤滑油組成物 |
JP2003119484A (ja) * | 2001-09-28 | 2003-04-23 | Infineum Internatl Ltd | 潤滑油組成物 |
-
2005
- 2005-03-30 WO PCT/JP2005/006723 patent/WO2005095559A1/ja active Application Filing
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63502833A (ja) * | 1986-03-13 | 1988-10-20 | ザ ルブリゾル コ−ポレ−ション | ホウ素含有組成物,およびそれらを含有する潤滑剤および燃料 |
JPS6366298A (ja) * | 1986-09-05 | 1988-03-24 | Matsumura Sekiyu Kenkyusho:Kk | 潤滑油添加剤組成物及びこれを含有する潤滑油組成物 |
JPH028296A (ja) * | 1988-02-23 | 1990-01-11 | Exxon Chem Patents Inc | マリンディーゼルシリンダ潤滑剤用分散剤 |
JPH03501628A (ja) * | 1988-10-07 | 1991-04-11 | ザ ルブリゾル コーポレーション | 改良された解乳化性を示す潤滑剤および機能流体組成物 |
JPH07102273A (ja) * | 1993-08-11 | 1995-04-18 | Idemitsu Kosan Co Ltd | ディーゼルエンジン用潤滑油組成物及びそれを用いたディーゼルエンジンの潤滑方法 |
JPH07197062A (ja) * | 1993-12-28 | 1995-08-01 | Kao Corp | ディーゼルエンジン用潤滑油添加剤及び潤滑油組成物 |
JPH07197067A (ja) * | 1993-12-28 | 1995-08-01 | Tonen Corp | ディーゼルエンジン用潤滑油組成物 |
JPH0848989A (ja) * | 1994-08-09 | 1996-02-20 | Idemitsu Kosan Co Ltd | 潤滑油組成物 |
JPH08127787A (ja) * | 1994-10-28 | 1996-05-21 | Toray Dow Corning Silicone Co Ltd | 液状組成物 |
JPH10147790A (ja) * | 1996-09-18 | 1998-06-02 | Tonen Corp | 内燃機関用潤滑油組成物 |
JP2002515933A (ja) * | 1997-05-02 | 2002-05-28 | インフィニューム ユーエスエイ リミテッド パートナーシップ | 潤滑油組成物 |
JP2003119484A (ja) * | 2001-09-28 | 2003-04-23 | Infineum Internatl Ltd | 潤滑油組成物 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011077810A1 (ja) * | 2009-12-24 | 2011-06-30 | Jx日鉱日石エネルギー株式会社 | クロスヘッド型ディーゼル機関用シリンダー潤滑油組成物 |
JP2011132338A (ja) * | 2009-12-24 | 2011-07-07 | Jx Nippon Oil & Energy Corp | クロスヘッド型ディーゼル機関用シリンダー潤滑油組成物 |
US9222054B2 (en) | 2009-12-24 | 2015-12-29 | Jx Nippon Oil & Energy Corporation | Cylinder lubricating oil composition for crosshead-type diesel engine |
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