CN104845702A - Special oil for two-stroke engine used for chain saw - Google Patents
Special oil for two-stroke engine used for chain saw Download PDFInfo
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- CN104845702A CN104845702A CN201510204127.XA CN201510204127A CN104845702A CN 104845702 A CN104845702 A CN 104845702A CN 201510204127 A CN201510204127 A CN 201510204127A CN 104845702 A CN104845702 A CN 104845702A
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Abstract
The invention provides special oil for a two-stroke engine used for a chain saw. According to the invention, TRS0812 polyol ester, rapeseed oil, hydrogenated base oil 400N and the like are used as mixed basic raw materials to strengthen chemical stability of a mixture; ashless additives like dithioalkylphosphonate and polybutylene succinimide are introduced for compounding with the mixture so as to improve lubricity and dispersion of the special oil and enhance anticorrosion and antirust abilities and combustion value of the special oil, thereby enabling the special oil to fully combust and reducing emission factors of pollutants. The special oil for the two-stroke engine used for the chain saw has sufficient lubricity and excellent comprehensive performance; and through usage of a mixture of the special oil and gasoline in a ratio of 1: 50, lubrication performance of the two-stroke engine used for the chain saw can be met, fuel economy is improved, loss of friction power, engine noise, smoke amount of the blended fuel and environmental pollution are reduced, engine power is increased, and requirements of working of the two-stroke engine are fully met.
Description
Technical field
The present invention relates to a kind of engine special oil, especially a kind of chain saw two-stroke engine special oil.
Background technology
The domestic discharge in order to reduce fuel oil combustion pollutent at present, many areas have changed state IV standard fuel oil into, and the appearance of state IV standard fuel oil describes the whole world and pays much attention to the pollution level problem of oil fuel use to ecotope.In recent years, the product research such as global oil seed production enterprise and scientific research institutions are biodegradable to oil product, energy-conservation, environmental friendliness make great progress, and all adopt different methods to solve oil plant to ecological pollution problem.But domestic two-stroke engine because of equipment de-sign power strong, simple and light, compared with traditional Otto cycle engine, two-stroke engine can give birth to 20% power by fecund, and reduce by 30% weight, the partly cause that weight reduces does not have independent lubrication box, and lubricating oil is mixed in fuel and burns, therefore in high-power compact and portable appliance, two-stroke engine has more advantage, is generally used at chain saw, mower, trim cutter etc.
Even now; but the principle of design of two-stroke engine; still need to adopt machine oil and the mixed of gasoline to convert the lubrication protection that combustion system could meet engine cylinder-body; reduce equipment attrition; in order to avoid scuffing of cylinder bore tile kilning; simultaneously increasing service life of engine, but combustion processes is insufficient, tail gas is involved in fuel and the gas mixture of air, part of fuel the shortcoming such as to be discharged in advance and still existed.The fuel oil that burns of two-stroke engine oil ratio Otto cycle engine oil the is many composition of machine oil, and two-stroke engine machine oil on the market generally have employed oil based on common straight mineral oil, and add containing the higher functional additive of element sulphur, increase machine oil burning and exhausting thus and pollute.For reducing machine oil burning pollutant quantity discharged, be only the technical problem that this product will be captured.Independent mineral oil based lubricants biodegradability is poor, and some also has eco-toxicity.Along with the continuous reinforcement that mankind's environmental consciousness and environmental protection are made laws, the problem of environmental pollution that straight mineral oil base lubricating agent causes more and more is subject to people and pays close attention to.Especially in recent years, " green manufacturing " as a kind of Advanced Manufacturing Modes with characteristics of the times taking into full account environment and resources, the whole world forms new green waves.
Summary of the invention
The present invention is mainly according to the two-stroke engine mechanism of action and the feature of chain saw, develop and a kind of there is enough oilnesies, improve fuel economy, reduce frictional power loss, reduce the noise of engine, strengthen the power of engine, meet the chain saw two-stroke engine special oil of two-stroke engine work requirements.
The technical solution used in the present invention is:
Weight percentage shared by the concrete material composition of the present invention is as follows:
Polyol ester TRS0812:20.0% ~ 35.0%
Phosphorodithioic acid alkyl ester: 0.3% ~ 0.5%
Polybutylene succinimide: 1.0% ~ 2.0%
Rapeseed oil: 2.0% ~ 15.0%
Hydrogenation 400N base oil: 60.0% ~ 75.0%.
Production technique of the present invention is:
This technique is measured all raw materials according to patent formulation, first 40 DEG C ± 5 DEG C are heated to after cold oil circulation being carried out to rapeseed oil while stirring, synthetic ester is added according to formula, thermostatically heating stirs 0.5h, temperature is proceeded to extremely in the 400N base oil of 50 DEG C ± 5 DEG C after the rape oil modify agent of gained, senior lubricant blending filtering system circulation stirring 0.5h is carried out by vacuum pressed 0.2MP, slowly be warming up to 80 DEG C ± 5 DEG C, composite metering prepares good Ashless type antiwear agents and ashless detergent dispersant again, 2h is stirred in constant temperature pulse, through technical indicator after the assay was approved, product is obtained again by 10 Mm filter systems.
The present invention is mainly applicable to double stroke chain saw engine, and this product is now with the current with the weight percent of 1:50 with gasoline.
Each raw material that the present invention screens has following effect:
1. synthetic ester TRS0812 polyol ester
TRS0812 is the trihydroxy methyl propane ester synthesized by the saturated Compound-acid of high-quality, belongs to the Vth class base oil in API classification.TRS0812 polyol ester has the features such as excellent low-temperature performance, good lubricity and low volatility.Have excellent high viscosity index (HVI), good oilness and abrasion resistance, biological degradation rate reaches more than 90% and renewable performance.
2. rapeseed oil bio-oil
The effect of bio-oil and rapeseed oil, mainly generates hydroxylation modified colza oiliness improver.The advantages such as it is fast and free from environmental pollution that the great advantage of rapeseed oil is that oneself decomposes, and sulfur-bearing is low, and discharge of poisonous waste is little in the offgas are also one of bio oil that in Now Domestic research, biofuel is given prominence to the most.In rapeseed oil, introduce hydroxyl in the present invention, synthesize a kind of environment-friendly modified rapeseed oil slip additive.Their abrasion resistances in Rapeseed and extreme pressure property has been investigated by infrared spectra, four-ball tester. the pattern on spot surface is ground with sem observation analysis, simultaneously by carrying out X-ray photoelectron spectroscopic analysis to polishing scratch, its hydroxylation Modified Rapeseed Oil as Additives for Lubricating Oil has the good extreme-pressure anti-wear mechanism of action.
3. hydrogenated base oil 400N
400N base oil adopts high-quality crude through underpressure distillation, refines form through three hydrogenation depth.It has stronger oxidation-resistance, viscosity index advantages of higher.It is the desirable feedstock of producing top-grade lubricating oil and special type oil.Its feature performance benefit is that smell is good, and viscosity is suitable, and pour point is low; Viscosity index is high, applied widely, has good storage stability and light stability.
4. Ashless type antiwear agents phosphorodithioic acid alkyl ester
Phosphorodithioic acid alkyl ester is fine with the use consistency of formula synthetic ester, not only can give remarkable abrasion resistance, in formula use procedure can also with its chemical reaction of engine metal surface, thus prevent from wearing and tearing under boundary friction condition.The use of zinc dialkyl dithiophosphate is equal to again, also known as promotor ZDTP in the present invention.Its use can prevent valve mechanism from wearing and tearing and bearing rust, thus allow engine run more for a long time, more smooth and easy.ZDDP has anti-oxidation characteristics, can reduce the damage that formation and flue dust because of greasy filth gather and cause on piston and other engine parts, and then extends the work-ing life of engine oil.They can form the chemical films with provide protection in metallic surface, prevent metal to be corroded.
5. ashless detergent dispersant polybutylene succinimide
Polybutylene succinimide has outstanding dispersion, solublization and good high-temperature stability, is mainly used in modulating medium-to-high grade level lubricating oil.Polybutylene succinimide also has good peace and quiet effect, for keeping engine washing, not only can solve the low temperature greasy filth of engine, can also reduce the deposition of engine hot parts paint film and carbon distribution, avoiding depositing around combustion chamber and piston.
Research and development principle:
The present invention mainly introduces the hydroxyl in the trihydroxy methyl propane ester of the saturated Compound-acid synthesis of contained high-quality in TRS0812 polyol ester in rapeseed oil, through four-ball tester, X-ray photoelectron spectroscopic analysis, by the extreme-pressure anti-wear mechanism of action of hydroxylation Modified Rapeseed Oil as Additives for Lubricating Oil, define hydroxylation modified colza additive, unique molecular adsorption effect, easily be adsorbed on metal interface and form stable oil film, similar friction improver, obviously improve the wear-resistant of rapeseed oil and Wear vesistance, thus the oilness of oil product can be improved, define modification biological grease.Its lubrication mechanism on surface of friction, adsorbs or occur friction chemical reaction define the lubricant film playing wear-resistant effect that jointly forms of friction polyester film, ferric oxide film or iron soap due to long-chain rapeseed oil molecule, can improve the abrasion resistance of synthetic ester in formula.Refining hydrogenation 400N base oil is with the addition of while modified colza, improve the lubricity of formula, in conjunction with functional additives such as Ashless type antiwear agents (phosphorodithioic acid alkyl ester), ashless detergent dispersants (polybutylene succinimide), the detergency of supply needed for two-stroke engine and dispersiveness, reduce the carbon deposit that formulation product produces in combustion, improve fuel value, thus decrease the quantity discharged of burning pollutant.
This product adopts TRS0812 polyol ester, bio-oil, hydrogenated base oil 400N etc. to be mixed base raw material.By rapeseed oil, polyol ester mixing, compound hydrogenation 400N base oil, enhance the chemical stability of mixture, quoting the Ashless type additives such as phosphorodithioic acid alkyl ester, polybutylene succinimide carries out composite, improve oilness and the dispersiveness of product, improve the antiseptic and rustproof of product and fuel value ability simultaneously, make product perfect combustion, reduce the emission factor of pollutent.Chain saw two-stroke engine special oil of the present invention, have enough oilnesies, product over-all properties is superior, and this product and gasoline use with 1:50 ratio, the lubricity of chain saw two-stroke engine can be met, improve fuel economy, reduce frictional power loss, reduce the noise of engine, reduce the composite fuels amount of being fuming, reduce the pollution of environment, strengthen the power of engine, the demand of two-stroke engine work can be met completely.
Accompanying drawing explanation
Fig. 1 is present invention process figure.
Embodiment
The present invention tests according to SH/T0646-1997 " WIND COOLING TWO STROKE exhaust smoke assessment method ", has carried out being fuming property assessment to the formula that this formula and plain mineral oil are formed.In this test, result is by the index according to flue gas, and the standard double stroke that fume indication is 100 compares.Fume indication is higher, and it is more that smoke evacuation reduces.Base oil 400N 100 DEG C of kinematic viscosity 10.8 ~ 11.5 mm2/s; TRS0812 polyol ester 100 DEG C of kinematic viscosity 5.5 ~ 6.0mm2/s, bio-oil 100 DEG C of kinematic viscosity 8.5 ~ 12.0mm2/s, hydroxyl value 4mgKOH/g, viscosity index 180.
Table 1
Table 2
For the feasibility of this formula more can be described, the parameter that the present invention is different to this formula for a product respectively carries out adjusting the new formula of formation, meets the oily requirement of chain saw two-stroke engine.The production technique of this formula is identical with above-mentioned production technique, and the percentage composition according to formulation parameter adds.
Example 3:
Base oil 400N 100 DEG C of kinematic viscosity 11.5 mm2/s; TRS0812 polyol ester 100 DEG C of kinematic viscosity 5.8mm2/s, bio-oil 100 DEG C of kinematic viscosity 9.8mm2/s, hydroxyl value 4mgKOH/g, during viscosity index 180.This example carries out all raw materials according to patent formulation to measure, first 40 DEG C ± 5 DEG C are heated to after cold oil circulation being carried out to rapeseed oil 2.0kg while stirring, synthetic ester 28.85kg is added according to formula, thermostatically heating stirs 0.5h, proceed in temperature to 50 DEG C ± 5 DEG C of 67.85kg 400N base oils after the rape oil modify agent of gained, senior lubricant blending filtering system circulation stirring 0.5h is carried out by vacuum pressed 0.2MP, slowly be warming up to 80 DEG C ± 5 DEG C, composite metering prepares good Ashless type antiwear agents (phosphorodithioic acid alkyl ester) 0.30kg and ashless detergent dispersant (polybutylene succinimide) 2.00kg again, 2h is stirred in constant temperature pulse, through technical indicator after the assay was approved, product is obtained again by 10 Mm filter systems.
Example 4:
Base oil 400N 100 DEG C of kinematic viscosity 11.0mm2/s; TRS0812 polyol ester 100 DEG C of kinematic viscosity 5.9mm2/s, bio-oil 100 DEG C of kinematic viscosity 10.0mm2/s, hydroxyl value 4mgKOH/g, during viscosity index 180.This example carries out all raw materials according to patent formulation to measure, first 40 DEG C ± 5 DEG C are heated to after cold oil circulation being carried out to rapeseed oil 2.27kg while stirring, synthetic ester 33.66kg is added according to formula, thermostatically heating stirs 0.5h, proceed in temperature to 50 DEG C ± 5 DEG C of 62.77kg 400N base oils after the rape oil modify agent of gained, senior lubricant blending filtering system circulation stirring 0.5h is carried out by vacuum pressed 0.2MP, slowly be warming up to 80 DEG C ± 5 DEG C, composite metering prepares good Ashless type antiwear agents (phosphorodithioic acid alkyl ester) 0.40kg and ashless detergent dispersant (polybutylene succinimide) 1.50kg again, 2h is stirred in constant temperature pulse, through technical indicator after the assay was approved, product is obtained again by 10 Mm filter systems.
Example 5:
Base oil 400N 100 DEG C of kinematic viscosity 11.0 mm2/s; TRS0812 polyol ester 100 DEG C of kinematic viscosity 5.5mm2/s, bio-oil 100 DEG C of kinematic viscosity 8.50mm2/s, hydroxyl value 4mgKOH/g, during viscosity index 180.This example carries out all raw materials according to patent formulation to measure, first 40 DEG C ± 5 DEG C are heated to after cold oil circulation being carried out to rapeseed oil 14.87kg while stirring, synthetic ester 23.27kg is added according to formula, thermostatically heating stirs 0.5h, proceed in temperature to 50 DEG C ± 5 DEG C of 74.23kg 400N base oils after the rape oil modify agent of gained, senior lubricant blending filtering system circulation stirring 0.5h is carried out by vacuum pressed 0.2MP, slowly be warming up to 80 DEG C ± 5 DEG C, composite metering prepares good Ashless type antiwear agents (phosphorodithioic acid alkyl ester) 0.50kg and ashless detergent dispersant (polybutylene succinimide 2.00kg again, 2h is stirred in constant temperature pulse, through technical indicator after the assay was approved, product is obtained again by 10 Mm filter systems.
Example 6:
Base oil 400N 100 DEG C of kinematic viscosity 11.0 mm2/s; TRS0812 polyol ester 100 DEG C of kinematic viscosity 5.5mm2/s, bio-oil 100 DEG C of kinematic viscosity 9.0mm2/s, hydroxyl value 4mgKOH/g, during viscosity index 180.This example carries out all raw materials according to patent formulation to measure, first 40 DEG C ± 5 DEG C are heated to after cold oil circulation being carried out to rapeseed oil 8.75kg while stirring, synthetic ester 26.25kg is added according to formula, thermostatically heating stirs 0.5h, proceed in temperature to 50 DEG C ± 5 DEG C of 71.24kg 400N base oils after the rape oil modify agent of gained, senior lubricant blending filtering system circulation stirring 0.5h is carried out by vacuum pressed 0.2MP, slowly be warming up to 80 DEG C ± 5 DEG C, composite metering prepares good Ashless type antiwear agents (phosphorodithioic acid alkyl ester) 0.50kg and ashless detergent dispersant (polybutylene succinimide) 2.00kg again, 2h is stirred in constant temperature pulse, through technical indicator after the assay was approved, product is obtained again by 10 Mm filter systems.
Table 3
The technical indicator display that above formulation examples detects, formula of the present invention has higher viscosity index, suitable viscosity-temperature characteristics and oilness, and pour point is low, smoke evacuation reduces.According to two stroke engine oil requirement, recommendation of the present invention mixes with the ratio of 1:50 now with the current with gasoline, and what product can meet two-stroke engine uses oily requirement.
Claims (2)
1. a chain saw two-stroke engine special oil, is characterized in that, the weight percentage shared by each material composition is as follows:
Polyol ester TRS0812:20.0% ~ 35.0%
Phosphorodithioic acid alkyl ester: 0.3% ~ 0.5%
Polybutylene succinimide: 1.0% ~ 2.0%
Rapeseed oil: 2.0% ~ 15.0%
Hydrogenation 400N base oil: 60.0% ~ 75.0%.
2. according to the two-stroke engine special oil of the chain saw described in claim 1, it is characterized in that: this product is used in combination with 1:50 ratio with gasoline.
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| CN201510204127.XA CN104845702A (en) | 2015-04-27 | 2015-04-27 | Special oil for two-stroke engine used for chain saw |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105802709A (en) * | 2016-03-24 | 2016-07-27 | 刘应才 | Preparation method for antioxidant gasoline engine lubricating oil |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1802356A (en) * | 2003-04-17 | 2006-07-12 | 凯姆杜拉公司 | Alkylated iminodibenzyls as antioxidants |
| CN101845356A (en) * | 2004-09-27 | 2010-09-29 | 英菲诺姆国际有限公司 | Lubricating oil composition |
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- 2015-04-27 CN CN201510204127.XA patent/CN104845702A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1802356A (en) * | 2003-04-17 | 2006-07-12 | 凯姆杜拉公司 | Alkylated iminodibenzyls as antioxidants |
| CN101845356A (en) * | 2004-09-27 | 2010-09-29 | 英菲诺姆国际有限公司 | Lubricating oil composition |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105802709A (en) * | 2016-03-24 | 2016-07-27 | 刘应才 | Preparation method for antioxidant gasoline engine lubricating oil |
| CN105802709B (en) * | 2016-03-24 | 2019-01-25 | 山东莱克科技有限公司 | A kind of preparation method of the petrol engine lubricating oil of resistance to oxidation |
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Application publication date: 20150819 |