CN114717041A - Diesel engine oil composition with long oil change period - Google Patents
Diesel engine oil composition with long oil change period Download PDFInfo
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- CN114717041A CN114717041A CN202110015435.3A CN202110015435A CN114717041A CN 114717041 A CN114717041 A CN 114717041A CN 202110015435 A CN202110015435 A CN 202110015435A CN 114717041 A CN114717041 A CN 114717041A
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- 239000000203 mixture Substances 0.000 title claims abstract description 59
- 239000003921 oil Substances 0.000 title claims abstract description 57
- 239000010710 diesel engine oil Substances 0.000 title claims abstract description 55
- 230000008859 change Effects 0.000 title claims abstract description 48
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 22
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 22
- 239000002199 base oil Substances 0.000 claims abstract description 12
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 7
- 239000002270 dispersing agent Substances 0.000 claims abstract description 7
- 238000005260 corrosion Methods 0.000 claims abstract description 5
- 230000007797 corrosion Effects 0.000 claims abstract description 5
- 230000000994 depressogenic effect Effects 0.000 claims abstract description 5
- 239000003599 detergent Substances 0.000 claims abstract description 5
- 229920001971 elastomer Polymers 0.000 claims abstract description 5
- 239000003112 inhibitor Substances 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims abstract description 5
- 229910052751 metal Inorganic materials 0.000 claims abstract description 5
- -1 alkyl salicylate Chemical compound 0.000 claims description 7
- 125000000217 alkyl group Chemical group 0.000 claims description 6
- 229920000193 polymethacrylate Polymers 0.000 claims description 6
- 229920001577 copolymer Polymers 0.000 claims description 4
- 239000002530 phenolic antioxidant Substances 0.000 claims description 4
- 229960001860 salicylate Drugs 0.000 claims description 4
- 229920013639 polyalphaolefin Polymers 0.000 claims description 3
- VETPHHXZEJAYOB-UHFFFAOYSA-N 1-n,4-n-dinaphthalen-2-ylbenzene-1,4-diamine Chemical compound C1=CC=CC2=CC(NC=3C=CC(NC=4C=C5C=CC=CC5=CC=4)=CC=3)=CC=C21 VETPHHXZEJAYOB-UHFFFAOYSA-N 0.000 claims description 2
- ZRMMVODKVLXCBB-UHFFFAOYSA-N 1-n-cyclohexyl-4-n-phenylbenzene-1,4-diamine Chemical compound C1CCCCC1NC(C=C1)=CC=C1NC1=CC=CC=C1 ZRMMVODKVLXCBB-UHFFFAOYSA-N 0.000 claims description 2
- WPMYUUITDBHVQZ-UHFFFAOYSA-M 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical group CC(C)(C)C1=CC(CCC([O-])=O)=CC(C(C)(C)C)=C1O WPMYUUITDBHVQZ-UHFFFAOYSA-M 0.000 claims description 2
- UJAWGGOCYUPCPS-UHFFFAOYSA-N 4-(2-phenylpropan-2-yl)-n-[4-(2-phenylpropan-2-yl)phenyl]aniline Chemical compound C=1C=C(NC=2C=CC(=CC=2)C(C)(C)C=2C=CC=CC=2)C=CC=1C(C)(C)C1=CC=CC=C1 UJAWGGOCYUPCPS-UHFFFAOYSA-N 0.000 claims description 2
- ZZMVLMVFYMGSMY-UHFFFAOYSA-N 4-n-(4-methylpentan-2-yl)-1-n-phenylbenzene-1,4-diamine Chemical compound C1=CC(NC(C)CC(C)C)=CC=C1NC1=CC=CC=C1 ZZMVLMVFYMGSMY-UHFFFAOYSA-N 0.000 claims description 2
- UTGQNNCQYDRXCH-UHFFFAOYSA-N N,N'-diphenyl-1,4-phenylenediamine Chemical compound C=1C=C(NC=2C=CC=CC=2)C=CC=1NC1=CC=CC=C1 UTGQNNCQYDRXCH-UHFFFAOYSA-N 0.000 claims description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical group [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 239000011701 zinc Substances 0.000 claims description 2
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 230000003647 oxidation Effects 0.000 abstract description 3
- 238000007254 oxidation reaction Methods 0.000 abstract description 3
- 239000006185 dispersion Substances 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 34
- 238000007689 inspection Methods 0.000 description 6
- 239000010687 lubricating oil Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 239000002585 base Substances 0.000 description 4
- 239000000295 fuel oil Substances 0.000 description 4
- 125000004432 carbon atom Chemical group C* 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 239000008139 complexing agent Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 239000002283 diesel fuel Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000010705 motor oil Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- KZNICNPSHKQLFF-UHFFFAOYSA-N succinimide Chemical compound O=C1CCC(=O)N1 KZNICNPSHKQLFF-UHFFFAOYSA-N 0.000 description 2
- 229920002367 Polyisobutene Polymers 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- DKVNPHBNOWQYFE-UHFFFAOYSA-N carbamodithioic acid Chemical compound NC(S)=S DKVNPHBNOWQYFE-UHFFFAOYSA-N 0.000 description 1
- 108010011222 cyclo(Arg-Pro) Proteins 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000012990 dithiocarbamate Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- UFWIBTONFRDIAS-UHFFFAOYSA-N naphthalene-acid Natural products C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 229960002317 succinimide Drugs 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
- C10M169/044—Mixtures of base-materials and additives the additives being a mixture of non-macromolecular and macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/022—Ethene
-
- 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
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/024—Propene
-
- 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
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/14—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to carbon atoms of six-membered aromatic rings
- C10M2207/144—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to carbon atoms of six-membered aromatic rings containing hydroxy groups
-
- 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
- C10M2207/28—Esters
- C10M2207/287—Partial esters
- C10M2207/289—Partial esters containing free hydroxy groups
-
- 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
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/08—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type
- C10M2209/084—Acrylate; Methacrylate
-
- 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
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
- C10M2215/064—Di- and triaryl amines
- C10M2215/065—Phenyl-Naphthyl amines
-
- 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
-
- 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
- C10M2219/06—Thio-acids; Thiocyanates; Derivatives thereof
- C10M2219/062—Thio-acids; Thiocyanates; Derivatives thereof having carbon-to-sulfur double bonds
- C10M2219/066—Thiocarbamic type compounds
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/08—Thiols; Sulfides; Polysulfides; Mercaptals
- C10M2219/082—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms
- C10M2219/087—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Derivatives thereof, e.g. sulfurised phenols
-
- 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
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/04—Phosphate esters
- C10M2223/045—Metal containing thio derivatives
Abstract
The invention discloses a diesel engine oil composition with a long oil change period. The composition consists of a metal detergent, an ashless dispersant, an oxidation and corrosion inhibitor, an antioxidant, a rubber antioxidant, an antiwear agent, a dispersion type viscosity index improver, a pour point depressant and base oil. The diesel engine oil composition has the characteristics of good low-temperature performance, long oil change period and the like, and the oil change mileage exceeds 15 kilometers. The diesel engine oil composition with the long oil change period can reduce the oil change frequency of vehicles, save the cost of customers and contribute to environmental protection.
Description
Technical Field
The invention relates to the technical field of lubricating oil products, in particular to a diesel engine oil composition with a long oil change period.
Background
With the attention of people on environmental protection and the stricter environmental protection regulations, diesel engines begin to step into the energy-saving and emission-reducing stage. The reduction of the emission of diesel engines and the improvement of the durability of the engines are the development trends of modern diesel engines, and the most concerned problem of users is how to reduce the running cost of vehicles, i.e. how to economize and scientifically use oil, and to achieve the goal, the engine oil is required to be capable of improving the fuel economy and prolonging the oil change period to the greatest extent on the premise of ensuring the service life of the engines, and the prolongation of the oil change period of the diesel oil becomes the current research hotspot.
The oil consumption level of the lubricating oil is inspected by a scholarer by adopting the fuel oil ratio, the percentage of the national lubricating oil consumption to the fuel oil consumption is called the fuel oil ratio, and the national lubricating oil using condition is reflected from one angle. The fuel oil ratio of China is close to 1.6 wt%, which is far higher than that of developed countries and regions (about 1.0 wt% in the United states, less than 0.9 wt% in Japan, and about 0.8 wt% in Europe), which indicates that the oil consumption level of China is low. The oil usage gap for diesel engine oils may be even greater. Along with the implementation of the national V emission standard of heavy-duty diesel engine, the CI-4 diesel engine oil gradually enters the main stream of oil products.
At present, the oil change period of commercial vehicles in China is 2-4 kilometers, and the oil change period of commercial vehicles in developed countries in Europe and America is 6-10 kilometers. In recent years, different requirements of 6 kilometers and 10 kilometers are put forward on the oil change period of oil products by domestic main-stream OEMs such as one-steam commercial vehicle, east wind commercial vehicle, northern steam and the like, more and more attention is paid to the diesel engine oil in the long oil change period, and the service life of the diesel engine oil becomes a trend.
Patent CN101851548 reports a long-life diesel engine oil, wherein base oil is mixed base oil consisting of three types and polyolefin, and the oil change period exceeds 3 kilometers; patent CN105602655 describes a composite additive for lubricating oil of a diesel engine with an ultra-long oil change period, wherein the oil change period of the composite additive can reach more than 5 kilometres; CN108219908 introduces a long-life environment-friendly diesel engine oil, the composition uses PAO and alkyl naphthalene as base oil, and the oil change period can reach 10 kilometres.
Through technical innovation, the diesel engine oil with a long oil change period is developed, so that the resource is saved, the generation of waste engine oil is reduced, and the environment is protected. There are many studies on diesel engine oil with long oil change period at home and abroad, the longest oil change period is reported to be 10 kilometers, and no longer oil change period diesel engine oil product is reported.
Disclosure of Invention
In view of the above, it is an object of the present invention to provide a diesel engine oil composition having a long drain change period, the drain change period of which exceeds 15 kilometers.
Therefore, the invention provides a diesel engine oil composition with a long oil change period, which comprises the following components by taking the total weight of the composition as a reference:
(A) a metal detergent in an amount of 2.0 to 7.0 wt%, preferably 2.5 to 6.5 wt%;
(B) an ashless dispersant in an amount of 3.0 to 10.0 wt%, preferably 3.5 to 8.0 wt%;
(C) 0.3 to 2.5 weight percent of oxidation and corrosion inhibitor, preferably 0.8 to 2.5 weight percent;
(D) 0.3-1.5 wt% of antioxidant, preferably 0.5-1.5 wt%;
(E) 0.2-1.0 wt% of rubber antioxidant, preferably 0.2-0.8 wt%;
(F) 0.2-0.6 wt% of antiwear agent, preferably 0.2-0.5 wt%;
(G) the content of the dispersive viscosity index improver is 1.0-5.0 wt%, preferably 2.0-5.0 wt%;
(H) the content of the viscosity index improver is 2.0-8.0 wt%, preferably 3.0-8.0 wt%;
(I) a pour point depressant, the content of which is 0.2 to 0.8 wt%, preferably 0.2 to 0.6 wt%;
(J) a base oil in an amount of 72.0 to 85.0 wt%, preferably 75.0 to 85.0 wt%.
The diesel engine oil composition with the long oil change period is characterized in that the component (A), namely the metal detergent, is a mixture of alkyl salicylate and sulfurized alkyl phenate, and the mass ratio of the alkyl salicylate to the sulfurized alkyl phenate is 2: 0.4-1.
It is further preferred that the alkyl salicylate has the structure shown below:
in the formula, R is alkyl containing 10-20 carbon atoms, M is Ca or Mg, and M and n are positive integers which are not zero;
it is further preferred that the sulfurized alkylphenate has the structure shown by the formula:
wherein R is an alkyl group having 10 to 24 carbon atoms, M is Ca or Mg, and M, n, and x are positive integers other than zero.
The long drain-time diesel engine oil composition of the present invention, wherein the ashless dispersant of the component (B) is preferably a polymeric polyisobutylene succinimide ashless dispersant, and the number average molecular weight thereof is greater than 4600.
The diesel engine oil composition with long oil change period of the invention is characterized in that the component (C) antioxidant corrosion inhibitor is zinc dialkyl dithiophosphate, and the structure is shown as the following formula:
wherein R is an alkyl group having 3 to 10 carbon atoms.
In the diesel engine oil composition with the long oil change period, the antioxidant of the component (D) is a phenolic antioxidant, wherein the phenolic antioxidant is preferably 3- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate.
The diesel engine oil composition with the long oil change period of the invention is characterized in that the rubber antioxidant (E) preferably comprises one or more of antioxidant D, antioxidant RD, antioxidant DNP, antioxidant A, antioxidant 4010, antioxidant 4020, antioxidant H, antioxidant Permanax49 and antioxidant KY 405.
The long drain-time diesel engine oil composition of the present invention, wherein preferably the antiwear agent of component (F) is an alkyl thiocarbamate antiwear agent, more preferably a dialkyl dithiocarbamate.
The diesel engine oil composition with the long oil change period of the invention is preferably characterized in that the component (G) dispersed viscosity index improver is dispersed ethylene-propylene copolymer or dispersed polymethacrylate.
The diesel engine oil composition with the long oil change period of the invention is preferably characterized in that the component (H) viscosity index improver is an ethylene propylene copolymer or polymethacrylate viscosity index improver.
The diesel engine oil composition with long oil change period of the invention is characterized in that the pour point depressant of the component (I) is preferably poly alpha-olefin or polymethacrylate.
The long drain-time diesel engine oil composition of the present invention, wherein preferably, the component (J) base oil is a group III hydrogenated base oil, and more preferably at least one of VHVI4, VHVI6, and VHVI 8. The high-quality lubricating oil product needs to be prepared from a complexing agent with excellent performance and high-quality base oil, and the III-type hydrogenated base oil is selected while the complexing agent with excellent performance is selected, so that the high viscosity index of the diesel engine oil composition is ensured, the good low-temperature performance of the diesel engine oil composition is ensured, the diesel engine oil composition can be used in different seasons and different regions, and the purpose of long-term oil change is achieved.
During preparation, the component A, B, C, D, E, F, G, H, I, J is added at one time and fully stirred for at least 2 hours until the composition is uniformly mixed, so that the diesel engine oil product with long oil change period can be obtained.
The invention has the following beneficial effects:
the oil change period of the oil product is inspected by adopting an actual driving test, the route is Heilongjiang-all over the country, the road condition is 90 wt% of high speed, the rest are national roads and provincial roads, the vehicle fuel is the fuel which is filled in a normal gas station and meets the national standard, and the driving test lasts for two years. Therefore, the composition has good low-temperature performance, and can ensure the stable running of the vehicle in the season-crossing and region-crossing processes. Finally, the composition completes the driving test of more than 15 kilometres. The composition performs the disassembly and inspection scoring on the engine of the test vehicle after the driving test is finished, and the engine disassembly and inspection scoring is passed.
In conclusion, the diesel engine oil composition has the characteristics of good low-temperature performance, long oil change period and the like, and the oil change mileage exceeds 15 kilometers. The diesel engine oil composition with the long oil change period can reduce the oil change frequency of vehicles, save the cost of customers and contribute to environmental protection.
Drawings
FIG. 1 is a graph of the viscosity change of the oil in the road test of example 5. The viscosity of the diesel oil composition changes in the running test;
FIG. 2 is the change in base number of the oil in the running test of example 5. Base number of diesel engine oil composition was varied in the running test.
FIG. 3 is a photograph showing the engine disassembled and inspected after the running test in example 5. Running test No. 1 test vehicle engine piston
FIG. 4 is a photograph showing the engine disassembled and inspected after the running test in example 5. Running test No. 1 test vehicle engine connecting rod bearing bush
Detailed Description
The following examples illustrate the invention in detail: the present example is carried out on the premise of the technical scheme of the present invention, and detailed embodiments and processes are given, but the scope of the present invention is not limited to the following examples, and the experimental methods without specific conditions noted in the following examples are generally performed according to conventional conditions.
All ranges disclosed herein are inclusive of the endpoints and independently combinable. The endpoints of the ranges and any values disclosed herein are not limited to the precise range or value, and such ranges or values should be understood to encompass values close to those ranges or values.
Example 1
The composition and content of the raw materials of the long oil change period diesel engine oil composition provided in this example are shown in table 1, by weight:
TABLE 1
Example 2
The composition and content of the raw materials of the long oil change period diesel engine oil composition provided in this example are shown in table 2, by weight:
TABLE 2
Example 3
The composition and content of the raw materials of the long oil change period diesel engine oil composition provided in this example are shown in table 3, by weight:
TABLE 3
Example 4
This example is a physical and chemical property test of the diesel engine oil composition of the present invention, and the analysis results of the diesel engine oil composition of each example are shown in table 4.
TABLE 4
As can be seen from the test results in Table 4, the diesel engine oil composition of the present invention has low pour point and low temperature dynamic viscosity, ensures that the oil has good low temperature start-up performance, and ensures that the oil can be started smoothly in the use process all the year round (long period).
Example 5
In the embodiment, the diesel engine oil composition is actually tested in a driving test, the test vehicle is a liberation J6P-350 vehicle type, the engine model is CA6DL2-35E5, the driving route is Heilongjiang-China, the test time is 2018-2019, the driving mileage is 17 kilometers, the viscosity change of the oil product in the driving test is shown in a graph 1, and the alkali number change is shown in a graph 2.
As can be seen from FIG. 1, the viscosity change of the oil product is not obvious in the process of the 17 kilo kilometer driving test of 3 test cars, which shows that the oil product has excellent performance, the viscosity increase caused by oxidation and soot growth does not occur, and the normal operation of an engine can be effectively protected.
As can be seen from FIG. 2, the base number of the 3-trolley oil is reduced by less than 50% in the running test process of over 17 kilometers, further illustrating that the oil of the present invention has excellent base retention and can effectively neutralize the acidic substances in the engine in the long-term running process of the vehicle.
Example 6
This example is the disassembly and inspection of the engine after the running test of the diesel engine oil composition of the present invention. After the driving test is completed, the engine of test vehicle No. 1 is subjected to disassembly and inspection scoring, the disassembly and inspection photographs are shown in fig. 3 and 4, and the disassembly and inspection scoring is shown in table 5.
TABLE 5
As can be seen from FIG. 3, after the traveling test is completed, the piston cylinder sleeve of test vehicle No. 1 has no scuffing and no paint film is formed on the skirt part of the piston, which shows that the diesel engine oil composition of the invention has excellent practical use performance.
As can be seen from FIG. 4, after the running test, the bearing bush of the No. 1 test vehicle has no abnormal wear, which shows that the diesel engine oil composition of the invention has excellent practical use performance.
As can be seen from table 5, after the driving test is completed, the engine part of test vehicle No. 1 is quantitatively scored, and the result is that the driving test is passed.
The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it is therefore intended that all such changes and modifications as fall within the true spirit and scope of the invention be considered as within the following claims.
Claims (11)
1. The diesel engine oil composition with the long oil change period is characterized by comprising the following components by taking the total weight of the composition as a reference:
(A) the content of the metal detergent is 2.0-7.0%; (B) an ashless dispersant, the content of which is 3.0-10.0%; (C) 0.3 to 2.5 percent of antioxidant corrosion inhibitor; (D) 0.3-1.5% of antioxidant; (E) 0.2-1.0% of rubber antioxidant; (F) 0.2-0.6% of an antiwear agent; (G) the content of the dispersive viscosity index improver is 1.0-5.0%; (H) the content of the viscosity index improver is 2.0-8.0%; (I) 0.2 to 0.8 percent of pour point depressant; (J) the content of the base oil is 72.0-85.0%.
2. The long drain period diesel engine oil composition of claim 1, wherein the metal detergent is a mixture of alkyl salicylate and sulfurized alkyl phenate at a mass ratio of 2: 0.4-1.
3. The extended drain period diesel engine oil composition of claim 1, wherein said ashless dispersant is a polymeric ashless dispersant having a number average molecular weight greater than 4600.
4. The extended drain period diesel engine oil composition of claim 1, wherein the antioxidant corrosion inhibitor is zinc dialkyldithiophosphate.
5. The extended drain time diesel engine oil composition of claim 1, wherein said antioxidant is a phenolic antioxidant, preferably said phenolic antioxidant is 3- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate.
6. The long drain time diesel engine oil composition of claim 1, wherein the rubber antioxidant comprises one or more of antioxidant D, antioxidant RD, antioxidant DNP, antioxidant A, antioxidant PA, antioxidant 4010, antioxidant 4020, antioxidant H, antioxidant Permanax49, and antioxidant KY 405.
7. The long drain time diesel engine oil composition of claim 1 wherein said antiwear agent is an alkyl thiocarbamate antiwear agent.
8. The long drain time diesel engine oil composition of claim 1, wherein said dispersed viscosity index improver is a dispersed ethylene propylene copolymer or a dispersed polymethacrylate.
9. The extended drain period diesel engine oil composition of claim 1, wherein the viscosity index improver is an ethylene propylene copolymer or a polymethacrylate viscosity index improver.
10. The extended drain period diesel engine oil composition of claim 1, wherein said pour point depressant is a polyalphaolefin or a polymethacrylate.
11. The extended drain time diesel engine oil composition of claim 1, wherein said base oil is at least one of group III hydrogenated base oils VHVI4, VHVI6, VHVI 8.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115678646A (en) * | 2022-08-05 | 2023-02-03 | 黎光泰富(苏州)科技有限公司 | Diesel engine oil with ultralow-temperature starting performance |
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| CN101798545A (en) * | 2009-02-11 | 2010-08-11 | 中国石油天然气股份有限公司 | Lubricating oil composite |
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| CN108822943A (en) * | 2018-07-26 | 2018-11-16 | 中国石油化工股份有限公司 | Diesel engine oil composition and application thereof |
| CN111321028A (en) * | 2018-12-13 | 2020-06-23 | 中国石油天然气股份有限公司 | Ashless antioxidant lubricating oil additive, compound lubricating oil additive and lubricating oil composition containing additives |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101798545A (en) * | 2009-02-11 | 2010-08-11 | 中国石油天然气股份有限公司 | Lubricating oil composite |
| CN104059715A (en) * | 2013-03-22 | 2014-09-24 | 中国石油化工股份有限公司 | Antioxidant composition, lubricating oil composition and method for improving oxidation resistance of lubricating oil |
| CN108822943A (en) * | 2018-07-26 | 2018-11-16 | 中国石油化工股份有限公司 | Diesel engine oil composition and application thereof |
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| CN115678646A (en) * | 2022-08-05 | 2023-02-03 | 黎光泰富(苏州)科技有限公司 | Diesel engine oil with ultralow-temperature starting performance |
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