CN105531449A - Lubricating device and method - Google Patents
Lubricating device and method Download PDFInfo
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- CN105531449A CN105531449A CN201480050013.8A CN201480050013A CN105531449A CN 105531449 A CN105531449 A CN 105531449A CN 201480050013 A CN201480050013 A CN 201480050013A CN 105531449 A CN105531449 A CN 105531449A
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- humidity
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- oiling agent
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
- F01M9/02—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00 having means for introducing additives to lubricant
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/02—Pressure lubrication using lubricating pumps
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
A method and system for lubricating a diesel engine operating on sulphur-containing fuel. A feed of lubricant is supplied to a cylinder of the diesel engine and is adjusted based on the humidity of intake air of the engine.
Description
Invention field
The present invention relates to the lubrication of compression-ignited (diesel oil) motor.Especially, although be not special, the present invention relates to adjustment at a slow speed with the cylinder lubrication agent charging of medium speed diesel engines (such as those in boats and ships, railway or stationary applications).
background of invention
Slow-speed diesel engines, usually lower than about 300rpm, such as, at about 50-250rpm range of operation, has high peak power output/cylinder, such as, within the scope of 2000-6000KW/ cylinder usually.Slow-speed diesel engines normally 2-two-stroke engine and such as crosshead construction, direct-coupling can be had and directly reverse.Usually such motor comprises separator, such as dividing plate and stuffing box, is separated by ram stop products of combustion to enter crankcase and mix with the oil of crankcase with crankcase.Slow-speed diesel engines often uses the sulfurous fuels of significant quantity, such as residual fuel oil.
Medium speed diesel engines is at about 300-1000rpm range of operation, and peak power output/cylinder by the time high in can providing, such as, up to about 2000KW/ cylinder.Such motor can be that 4-stroke or 2-two-stroke engine also can also run sulfurous fuels, such as residual fuel oil.
At a slow speed or the cylinder of medium speed diesel engines lubricated by cylinder lubrication agent.In order to cut down the corrosion that sour sulfur material causes, cylinder lubrication agent provides basicity deposit (alkalinityreserve), and it is defined by total base number (TBN), usually represents with mgKOH/g and measures according to ASTMD2896.Such as, usually provide the stroke of the 2-at a slow speed compression ignition engine with cylinder lubrication agent, described cylinder lubrication agent has the TBN within the scope of 40-100mg, and such TBN by comprising additive and obtaining in oiling agent base storing.
At a slow speed or in medium-speed engine, engine operating temperatures and pressure are easy to destroy the lubricant film on the engine air inside wall of cylinder, and it can cause the wearing and tearing increased.Therefore cylinder lubrication agent supplies substantially continuously with lubricant feed speed.Lubricant feed speed represents with g/KWh usually, that is, export with engine power and change.
Not only responding power exports cylinder lubrication agent feed rate in known adjustment heavy diesel motor but also responding engine loading condiction, Sulpher content in fuel or special engine design.This permission optimizes lubricant feed in order to better engine performance.
US patent application 2003/0196632A1 discloses a kind of instrument that uses to realize the method for the change of oiling agent flow rate or the character in response to real engine condition.One or more engine parameters of the usual detecting instrument of the method are if XRF is to determine that wear metal or IR measure for base number.The engine parameter measured is for calculating the feed rate of oiling agent to motor.
Also the Sulpher content of known fuel also may have an impact to lubricating requirement.Usually the discharge as flue dust and metallic oxide of higher oxysulfide, nitrogen oxide and special material is produced compared with the burning of high-sulfur combustor.For lower sulphur fuel, low speed or medium speed diesel engines may be run with the lubricant feed speed reduced and/or lower TBN.Under these circumstances, providing the excessive unreacted compound in the additive package of TBN (as ultrahigh basicity detergent) that formation sediments may be caused.Therefore, the known TBN that will change cylinder lubrication agent is to mate the Sulpher content of fuel.
The adjustment of oiling agent composition can after making regular check on or continuously, concurrently (on-board) carry out.
US2003/0159672A1 discloses a kind of method, described method detects one or more engine parameters of total loss lubrication system termly, and adds base lubricant to produce the amount being fed to the second fluid of the modification base lubricant of motor at run duration from engine parameter calculation requirement.
US2006/0068995A1 discloses a kind of method producing cylinder oil, described method comprises TBN by determining at least one initial fluid, determine the expectation TBN of cylinder oil and by by described at least one initial fluid and the blended TBN correspondingly regulating described at least one initial fluid of suitable additive, thus at least one initial fluid described in modification.
US2008/0318818A1 discloses a kind of method of lubricating marine diesel 2-two-stroke engine, described method relates to and detects the performance parameter of motor, and prepares proper lubrication agent composition by in-situ blending at least two kinds of different fluid (wherein a kind of comprise the additive package with detergent).
Although there are these to develop, the operational issue relevant to cylinder lubrication continues to occur, such as unaccounted scratch so far or excessive corrosive wear.
The object of this invention is to provide a kind of improvement project of the diesel engine for lubricating diesel engine, especially low speed and the middling speed type run on sulfurous fuels, and/or solve at least one problem relevant to prior art.
Summary of the invention
According to a first aspect of the invention, provide the method for the diesel engine that lubrication uses sulfurous fuels to run, described method comprises the cylinder of supply lubricant feed to diesel engine, and wherein said charging regulates based on the humidity of the air inlet of motor.
Find for the consumption of the humidity of the air inlet of combustion of sulfurous fuel on the TBN of the oiling agent of the cylinder be fed in such motor, to there is impact in diesel engine.
The humidity of the air inlet of motor can be determined in any suitable manner or infer, and the method correspondingly can comprise measurement or detect humidity.Humidity can be absolute humidity or relative moisture.In an embodiment of the invention, lubricant feed is regulated based on absolute humidity.In yet another embodiment of the present invention, based on relative moisture, particularly regulate lubricant feed under given air temperature.Can use and represent that any tolerance of ambient humidity is to regulate lubricant feed.Aptly, can measure by humidity transducer or detect the humidity of air inlet.In order to accurate especially, the humidity of air inlet can advantageously be measured or detect in the gas-swept space of motor.
Lubricant feed can regulate across in the relative moisture (0-100%) of air inlet measured under any specific intake temperature (DEG C) or the gamut of absolute humidity.
In one embodiment, based on humidity adjustment by discharge oil samples one or more before measurement calibrate.Such as, described method measures the discharge TBN of oil samples and/or the initial step of tenor, to calibrate the adjustment based on humidity under can being included in multiple humidity.
Periodic measurement can be carried out to detect, to assess or infer the humidity of during a period of time (such as at least 5 minutes, at least 10 minutes, at least 1 hour or at least 1 day).
As the limiting examples shown in as can be seen from Fig. 1, under given engine load, fixing fuel sulfur content and fixing lubricant feed speed, relation between the consumption of basicity deposit (base number) and ambient humidity is found to defer to linear relationship, observes lower basicity deposit (base number) under higher levels of humidity.
The present invention allows the humidity factor by considering air inlet and lubricant feed is optimized for better performance.But lubricant feed can also regulate based on the other factors except ambient humidity.In one embodiment, the method also comprises based on being selected from following one or more because usually regulating lubricant feed: the Sulpher content of the fuel that the power stage of motor and/or each cylinder, engine load, motor use, the TBN of oiling agent, wearing and tearing, sediments and/or corrosion.
In one embodiment, charging, as the function of ambient humidity, is conditioned in (as at least 5 minutes, at least 10 minutes, at least 1 hour or at least 1 day) (or maintenance) during a period of time.
Charging can be regulated by change feed rate and/or feed composition.Therefore, feed rate changes with ambient humidity.
In one embodiment, feed rate is adjusted in about 0.50 to about 1.4g/kwh (i.e. g/h/kw engine power) scope.In one embodiment, feed rate is adjusted in about 0.50 to 1.2, about 0.5 to 1.1, about 0.6 to 1.4, about 0.6 to 1.2 or about 0.6 to 1.1g/kwh scope.The specified level of feed rate will depend on engine type and can consider other factors as above-named those.
In one embodiment, when ambient humidity improves, feed rate is adjusted to and is tending towards higher feed rate.In one embodiment, when ambient humidity reduces, feed rate is adjusted to and is tending towards lower feed rate.Term " be tending towards " representing can also optionally use other factors (as herein above-named those) to regulate feed rate, and therefore can affect whole adjustment.The certain weights giving ambient humidity for Optimal performance can be depending on engine type.
Charging can also or alternately be regulated by its composition of change or content.In one embodiment, the concentration of the additive providing basicity to lay in can be changed in charging.
In one embodiment, parallel blended (blend-on-board) system can be used to realize the change of charging content.The example of parallel blended system is described in US2006/0068995A1.
In one embodiment, said method comprising the steps of: (1) detects the humidity of the air inlet being used for motor; (2) select oiling agent with the behavior characteristics of modified engines, wherein said oiling agent is prepared by the blended at least following component of in-situ control: the additive that (i) provides basicity to lay in, optionally other performance additive, and (ii) has the base oil of lubricant viscosity; And 3) oiling agent of preparation in step (2) is fed to motor.
Carry out control by known blend method any in prior art blended, prerequisite is that the amount of dosing agent is to provide the lubricating composition of requirement.
In one embodiment, additive package is containing one or more ultrahigh basicity detergents and/or one or more mild detergents, and it is as described below.
In one embodiment, oiling agent is prepared by blended base oil, additive, fluid or the component different more than two kinds.In one embodiment, the quantity of base oil, additive, fluid or component be 2-8,2-6,2-4,3-8,3-6 or 3-4. in one embodiment, the quantity of additive, fluid or component is 3.
The specific quantity of the additive consistent with the character of the lubricant feed obtaining expectation, fluid or component, kind and concentration can be selected.Such as, the kind of additive, fluid or component, quantity and concentration can be selected to provide described Anywhere lubricant feed herein.
In one embodiment, when ambient humidity increases, regulate in charging and provide the concentration of the additive of basicity deposit to being tending towards higher TBN.In one embodiment, when ambient humidity reduces, regulate in charging and provide the concentration of the additive of basicity deposit to being tending towards lower TBN.Term " be tending towards " representing can also optionally use other factors (as herein above-named those) to regulate additive concentration, and therefore can affect whole adjustment.The certain weights giving ambient humidity for Optimal performance will depend on engine type.
In principle, benefit of the present invention can be expected to be widely used in any diesel engine using sulfurous fuels to run.But the present invention's imagination is under the background of marine diesel engine, and described marine diesel engine often runs and can stand the change of significant humidity under the residual fuel oil of meeting high sulfur content.The special motor wherein of advantage of the present invention be low speed or medium speed diesel engines (as herein above described or define) mode of execution in can be significant and useful.In one embodiment, motor is 2-stroke diesel engine, particularly boats and ships 2-stroke diesel engine.In one embodiment, one or more cylinders lubricated dose of charging total loss (total-loss) lubrication of motor.
Diesel engine uses sulfurous fuels to run.Such operation can occur while adjustment lubricant feed, but the present invention also comprises such method, operates in before or after charging regulates wherein like this, such as regulate start or terminate after the time durations of 24 or 48 hours occur.Especially, the present invention includes such method, wherein temporarily use and be substantially free of the fuel of sulphur or there is than sulfurous fuels the fuel of more low sulfur content, such as, when engine of boat and ship enters harbour or inland waters.Below relevant exemplary fuel classification is defined in.
Sulfurous fuels can be that comprise at least can any fuel of sulphur (being such as greater than 1ppm) of detection limit in principle.In one embodiment, fuel package is containing intermediate fraction and bottom oil.In one embodiment, sulfurous fuels comprises the sulphur of at least 0.0001%w/w.Such level may reside in ultra low sulfur fuels, such as super-low sulfur boats and ships gas and oil (ULSMGO).In another embodiment, fuel package contains the sulphur of at least 0.001%w/w.Such level can even be present in low-sulphur fuel, such as low-sulfur boats and ships gas and oil (LSMGO).In yet, fuel package containing at least 0.1%w/w sulphur or even at least 0.5%w/w or at least 1.0%w/w, at least 2% or at least 3% sulphur.Such level may reside in such as low-sulfur intermediate fuel oil (such as LS180 or LS380).In yet, fuel package contains the sulphur of at least 3.5%w/w.Such level may reside in such as intermediate fuel oil (such as IFO380).Generally speaking, the fuel cost with higher sulfur content is lower.The present invention has special advantage in the motor using lower cost operating fuel.It is believed that the impact of ambient humidity and lubricant properties is significant especially using in the fuel with higher level sulphur.Therefore, the present invention advantageously can solve the balance between cost and corrosion thought so far.
Oiling agent can be any oiling agent of applicable lubricating engine, particularly cylinder.In one embodiment, oiling agent as in WO99/64543A1 (its content be incorporated to by reference herein) Anywhere define.
In one embodiment, oiling agent is the oiling agent of SAE40 grade or SAE50 grade or SAE60 grade.
As previously mentioned, oiling agent can carry out pre-blend or parallel or in-situ blending by mixing.In one embodiment, oiling agent comprises at least one base oil and at least one additive, and it can form additive package.Base oil also optionally comprises the additive of one or more pre-blend.
In one embodiment, the viscosity of the combination of base oil or base oil is at 2mm
2/ s to 40mm
2/ s or to 50mm
2in the scope of/s (at 100 DEG C).Compatibly, base oil can comprise newly the system oil of (namely fresh or do not use), system oil (also may be referred to light neutral base oil) with crossing, heavy neutral base oil, bright stock or its mixture.Such oil comprises neutral and artificial oil, comes from hydrocracking, hydrogenation and hydrorefined oil, non-refining, refining and refining again oil and composition thereof.Also known and the naphthenic oil of hydrotreatment can be used, and the oil prepared by Fischer-Tropsch gas-liquid systhesis program and other gas-liquid oil.
As previously mentioned, additive or additive package can comprise one or more ultrahigh basicity detergents and/or one or more mild detergents.
In one embodiment, the oiling agent being fed to cylinder has the TBN of 20-100 (mgKOH/g).In one embodiment, the TBN of oiling agent is 20-80,20-70,30-100,30-80,30-70,40-100,40-80 or 40-70.
In one embodiment, ultrahigh basicity detergent has the detergent of at least 200.In one embodiment, the TBN of ultrahigh basicity detergent is at least 230 or at least 300.In one embodiment, the TBN of ultrahigh basicity detergent is up to 600,550 or 500.The example of the scope of the TBN of ultrahigh basicity detergent comprises 200-600,200-550,200-500,230-600,230-550,230-500,300-600,300-550 and 300-500.
In one embodiment, the TBN of mild detergent is less than 200.In one embodiment, the TBN of mild detergent is less than 175.The example of the scope of the TBN of mild detergent comprises 1-200,1-175,20-200 and 20-175.
In one embodiment, one or more ultrahigh basicity detergents described or one or more mild detergents comprise salicylate, sulfonate, phenates or hybrid radix detergent.Hybrid radix detergent such as can comprise sulfonate optionally under salicylate exists and the composite/mixture of phenates.
In one embodiment, also there is other additive in lubricant feed.In one embodiment, lubricant feed comprises polymer viscosifier or viscosity index improver.Polymer viscosifier such as can comprise the ester of styrene butadiene rubbers, ethylene-propylene copolymer, hydrogenated styrene isoprene polymer, hydrogenation free radicals isoprene copolymer, poly-(methyl) acrylate, alkyl styrenes, polyolefin (such as polyisobutylene), polyalkyl methacrylate and maleic anhydride-styrene copolymers.
In one embodiment, the weight average molecular weight (Mw) of polymer viscosifier is at least 8000, at least 8400, at least 10,000, at least 12,000, at least 15,000, at least 20,000, at least 25,000, at least 30,000 or at least 35,000.The Mw of polymer viscosifier does not have the upper limit usually, but in one embodiment, Mw is less than 2, and 000,000, be less than 500,000, be less than 300,000, be less than 150,000 or be less than 75,000.
In one embodiment, the oiling agent being applied to motor comprises at least one and is selected from following performance additive: metal deactivator, dispersing agent, antioxidant, antiwear additive, corrosion inhibitor, anti-liniment, extreme pressure agent, foam depressant, demulsifier, friction modifiers, pour-point depressant and composition thereof.
In one embodiment, oiling agent comprises antiwear additive, such as hydrocarbyl dithiophosphoric acid slaine.The example of hydrocarbyl dithiophosphoric acid slaine comprises dialkyldisulfide for Zinc phosphate (being commonly referred to ZDDP, ZDP or ZDTP).The example of suitable hydrocarbyl dithiophosphoric acid zinc compound comprises the reaction product of butyl/amyl group, heptyl, octyl group, nonyl phosphordithiic acid zinc salt or its mixture.
In one embodiment, antiwear additive is ashless, and namely antiwear additive is without metal.In one embodiment, be amine salt without metal antiwear agent.Ash-free antiwear agent can containing the atom comprising sulphur, phosphorus, boron or its mixture.
In one embodiment, oiling agent comprises dispersing agent.Dispersing agent can be the dispersing agent or the ashless type dispersants that comprise ash content, and it is because before mixing with other component of oiling agent that the latter calls like this, and they do not comprise the metal forming sulfated ass.After blending, they can obtain metal ion from other component; But they are so-called " ashless dispersant " still.Dispersing agent can use individually or with other dispersant package.In one embodiment, ashless dispersant does not comprise ash content formation metal.The feature of ashless type dispersants is the polar group being connected to relative HMW hydrocarbon chain.Ashless dispersant can comprise N-and replace long chain hydrocarbon succinimide such as alkenyl succinimide.The example that N-replaces long chain alkenyl succinimides comprises polyisobutenyl succinimide, and the substituent number-average molecular weight of polyisobutylene is such as 350-5000,350-3000,500-5000 or 500-3000.Succinimide dispersants and their preparation are disclosed in such as US4234435.Succinimide dispersants is the usual acid imide formed from polyamine, usually poly-(ethylene amines).
In one embodiment, lubricant feed comprises antioxidant, such as diphenylamines, hindered amine, molybdenum dithiocarbamate, olefine sulfide and composition thereof.In an alternate embodiments, oiling agent does not have antioxidant.
In one embodiment, oiling agent also can comprise other performance additive, such as: corrosion inhibitor is as octylamine octanoate; Dodecenyl-succinic acid or acid anhydride and fatty acid are as the condensation product of oleic acid and polyamine; Metal deactivator comprises the derivative of benzotriazole, 1,2,4-triazole, benzimidazole, 2-alkyl two Thiobenzimidazole or 2-alkyl two sulfo-benzothiazole; Foam in hibitors comprises the copolymer of ethyl acrylate and 2-EHA and optional vinyl acetate; Demulsifier comprises trialkylphosphate, polyethyleneglycol, PEO, PPOX and (epoxy ethane-epoxy propane) polymer; Pour-point depressant comprises the ester of maleic anhydride-styrene, polymethacrylate, polyacrylate or polyacrylamide; And/or friction modifiers comprises derivative of fatty acid as amine, ester, epoxides, fatty imidazolines, carboxylic acid and the condensation product of polyalkylene-polyamine and the amine salt of alkyl phosphoric acid.
Total merging amount of the additive existed can be such as 0-25,0-20,0-15,0-10,0.01-25,0.01-20,0.01-15,0.01-10,0.05-25,0.05-20,0.05-15,0.05-10,0.1-25,0.1-20,0.1-15,0.1-10,0.5-25,0.5-20,0.5-15 of total oiling agent, or 0.5-10 % by weight.
According to second aspect, the invention reside in the lubrication system for the diesel engine using sulfurous fuels to run, this system comprises:
For the humidity transducer of the humidity of sense engine air inlet;
For lubricant feed being controlled to the feeding regulating device of one or more cylinders of described motor; With
Engine controlling unit, it is configured to control feeding regulating device based on the humidity by humidity transducer sensing.
In this second aspect of the present invention, the humidity of air inlet can be absolute humidity or the relative moisture of air inlet.
In one embodiment, feeding regulating device comprises the device of the feed rate for controlling oiling agent and/or the intermingling apparatus for the composition that controls oiling agent.
In one embodiment, this system is configured to the method that is suitable for performing according to a first aspect of the invention.
According to the third aspect, the invention reside in the computer-readable medium comprising programmed instructions, it makes computer processor go the step of the method performed according to a first aspect of the invention.
According to fourth aspect, the invention reside in computer-readable medium according to a third aspect of the invention we and the agent of (i) cylinder lubrication, such as, define Anywhere herein; (ii) one or more external member of system according to a second aspect of the present invention.Advantageously, the computer-readable medium of such external member can be applicable to oiling agent and/or the system of external member especially.Described external member can be provided as the bundle of instruction that has and merge and use or its parts can sell separately but have the instruction merging and use.
According to the 5th aspect, the invention reside in abatement and use the corrosion and/or sedimental method that increase in the cylinder of the diesel engine of sulfurous fuels operation, the corrosion of described increase and/or sediments be come from engine charge humidity change (namely raise or reduce) caused by those, the described method humidity regulation comprised based on engine charge is supplied to the lubricant feed of cylinder.In in the of the present invention 5th, the humidity of air inlet can be the absolute humidity of air inlet or the relative moisture of air inlet.
According to the 6th aspect, the invention reside in a certain amount of basicity deposit purposes in the lubricant, its make described oiling agent be suitable for compensating wherein use or described oiling agent to be used motor in ambient humidity.In in the of the present invention 6th, ambient humidity can be absolute humidity or relative moisture.
In the whole specification and claims of the application, word " comprises " and the modification of " comprising " and these words, and what such as " contain " is meant to " including but not limited to ", and does not get rid of other parts, additive, component, integer or step.And odd number comprises plural number, unless the context requires otherwise: especially, using the place of indefinite article, specification should be understood to comprise plural number and odd number, unless context opposing requests.
The preferred feature of each aspect of the present invention can be described in conjunction with any other side.Typically, the present invention extends any newly or any combination newly of feature disclosed in this specification (comprising any subsidiary claims and accompanying drawing).Therefore, the feature, integer, feature, compound, chemical part or the group that describe in conjunction with particular aspects of the present invention, mode of execution or embodiment are interpreted as being applicable to any other aspect, mode of execution or embodiment described herein, unless incompatible therewith.In addition, except as otherwise noted, any feature disclosed herein can be used to the alternative character displacement of same or similar object.
In the place of upper and lower bound of quoting character, so can also represent that the scope of the value defined is carried out in the combination by any upper limit and any lower limit.
In this manual, quoting constitutive property unless otherwise indicated, is at ambient conditions, namely in barometric pressure and the character measured at 16-22 or 25 DEG C or 18-22 or 25 DEG C, such as about 20 DEG C.
The non-limiting example quoted below and the illustrative embodiments of enclosing are described further by the present invention now, wherein:
Fig. 1 to be presented in large 2-stroke marine diesel engine for the change of the humidity of the air inlet of combustion of sulfurous fuel the figure of the impact of the consumption of the TBN of cylinder lubrication agent; With
Fig. 2 is the schematic diagram of lubrication system according to the embodiment of the present invention.
Embodiment
the humidity of embodiment 1-engine charge is on the impact of TBN
The obtainable 70TBN cylinder oil (ShellAlexia50) of business is used to study.
Have studied under the fuel sulfur of two kinds of varying levels, engine load in 96cm cylinder diameter 2-stroke marine diesel engine, at 65-85%MCR, the consumption of basicity deposit is with the change of the absolute humidity of the air inlet (at various temperatures) for removing.
As prior art common, the absolute feed rate of oiling agent regulates continuously based on engine load.0.9g/kWh is held constant at relative to the feed rate of engine load.
Find that the relative moisture of air inlet has impact in the consumption of the TBN of oiling agent, as at table 1 and seen in fig. 1.
According to the present invention, if in the humidity (usually together with Sulpher content, load and any other special engine features) controlling to consider in feed rate for the air inlet of burning, so can cylinder lubrication agent feed rate be optimized further and obtain better performance.
embodiment 2-is based on humid control lubricant feed
With reference now to Fig. 2, the lubrication system 1 for 2-stroke marine diesel engine 2 comprises engine controlling unit 4, humidity transducer 6, the parallel blended system 8 of oiling agent and charging and controls 10.
2-stroke marine diesel engine 2 is routine types at a slow speed.Humidity transducer 6 is arranged in the gas-swept space of motor, to measure the humidity of engine charge.
Humidity transducer is connected to engine controlling unit 4, and its sequencing is to control the operation of motor, and control although it is so is also undertaken by independent device (if desired).Engine controlling unit 4 can comprise or be connected to the user interface (not shown) for showing engine operational conditions and/or reception user input.It can also receive further information, the Sulpher content of the fuel such as used about the power stage of motor or each cylinder, engine load, motor, the TBN of oiling agent, wearing and tearing, sediments and/or corrosion, it is from other sensors or module (not shown).
Engine controlling unit 4 comprises microprocessor.Engine controlling unit controls the operation of parallel blended system 8, and described parallel blended system 8 is communicated with source (such as tank) fluid of base oil 12 with the first and second additives 14,16.First additive 14 comprises ultrahigh basicity detergent.Second addition 16 is optional and comprises performance additive packages.Based on the requirement from engine controlling unit 4, the blended base oil of blended system 8 and one or more optional additives 14,16 are to provide cylinder lubrication agent 18.
Charging controls 10 and receives by the blended oiling agent 18 of blended system 8, and based on the requirement from engine controlling unit 4, oiling agent 18 is supplied to the cylinder of motor 2 as the charging 20 with the feed rate determined by engine controlling unit 4.
Be in operation, system 1 is set as cylinder lubricant compositions 18 being delivered under certain feed rate motor.The humidity of air inlet monitored continuously by humidity transducer 6, and this information is passed to engine controlling unit 4.
When being monitored humidity by sensor 6 and increasing, engine controlling unit is programmed, and with by suitable instruction is provided to feed control device 10 and/or blended system 8, performs below one or both:
I () improves the TBN of oiling agent 18 by the concentration of the basicity deposit additive 14 in increase oiling agent 18;
(ii) feed rate of the charging 20 of oiling agent 18 is improved.
When being monitored humidity by sensor 6 and reducing, engine controlling unit is programmed to perform below one or both:
I () lowers the TBN of oiling agent 18 by the concentration of the basicity deposit additive 14 in reduction oiling agent 18;
(ii) feed rate of the charging 20 of oiling agent 18 is reduced.
In modification preferably, engine controlling unit when controlling blended system 8 and charging and controlling 10 by other sequencing to consider following one or more: the Sulpher content of the fuel that the power stage of motor or each cylinder, engine load, motor use, the TBN of oiling agent, wearing and tearing, sediments and/or corrosion.
In further modification preferably, eliminate blended system 8.
Claims (17)
1. lubrication uses the method for the diesel engine of sulfurous fuels operation, and described method comprises cylinder lubricant feed being fed to described diesel engine, and wherein said charging regulates based on the humidity of the air inlet of described motor.
2. method according to claim 1, wherein said humidity is absolute humidity.
3. method according to claim 1, wherein said humidity is relative moisture, particularly under given air temperature.
4. the method described in any one of claim 1-3, the humidity of wherein said air inlet is by the humidity sensor measurement in the gas-swept space of described motor.
5. the method for any aforementioned claim, wherein said lubricant feed also regulates based on being selected from following one or more factors: the Sulpher content of fuel that the power stage of motor, engine load, motor use and the TBN of oiling agent.
6. the method for any aforementioned claim, wherein said charging is regulated by the composition changing lubricant feed speed and/or described lubricant feed.
7. the method for any aforementioned claim, wherein when the humidity of described air inlet improves, feed rate is adjusted to and is tending towards higher feed rate, and when the humidity of described air inlet reduces, feed rate is adjusted to and is tending towards lower feed rate.
8. the method for any aforementioned claim, the composition of wherein said lubricant feed provides the concentration of the additive of basicity deposit to regulate by changing to described charging, when the humidity of described air inlet increases, the concentration adjustment of described additive is be tending towards higher TBN in charging, and when the humidity of described air inlet reduces, be adjusted to and be tending towards lower TBN in charging.
9. the method for any aforementioned claim, wherein said motor uses the 2-stroke marine diesel engine comprising the operating fuel of the sulphur of at least 1.0%w/w.
10. the method for any aforementioned claim, wherein said oiling agent is the oiling agent of SAE40 or SAE50 or SAE60 grade.
11. for the lubrication system of the diesel engine that uses sulfurous fuels to run, and described system comprises:
For the humidity transducer of the humidity of the air inlet of motor described in sensing;
For lubricant feed being controlled to the feeding regulating device of one or more cylinders of described motor; With
Engine controlling unit, it is configured to control described feeding regulating device based on the humidity by described humidity transducer sensing.
12. lubrication systems according to claim 11, wherein said feeding regulating device comprises the device of the feed rate for controlling described oiling agent and/or the intermingling apparatus for the composition that controls described oiling agent.
13. claims 11 or lubrication system according to claim 12, wherein said engine controlling unit is configured to perform the method according to any one of claim 1-10.
14. computer-readable mediums comprising programmed instructions, it makes computer processor perform the step of the method according to any one of claim 1-10.
15. external members, it comprises computer-readable medium according to claim 14 and following one or more: cylinder lubrication agent; With the system according to any one of claim 11-13.
The corrosion of the increase in the cylinder of the diesel engine that 16. abatements use sulfurous fuels to run and/or sedimental method, the corrosion of described increase and/or sediments come from the humidity change of the air inlet of described motor, and the described method humidity regulation comprised based on the air inlet of described motor is supplied to the lubricant feed of described cylinder.
17. a certain amount of basicity deposits purposes in the lubricant, its make described oiling agent be suitable for compensating wherein use or described oiling agent to be used motor in ambient humidity.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP13184455 | 2013-09-13 | ||
| EP13184455.7 | 2013-09-13 | ||
| PCT/EP2014/069501 WO2015036543A1 (en) | 2013-09-13 | 2014-09-12 | Lubricating device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105531449A true CN105531449A (en) | 2016-04-27 |
Family
ID=49162065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480050013.8A Pending CN105531449A (en) | 2013-09-13 | 2014-09-12 | Lubricating device and method |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP3044431A1 (en) |
| JP (1) | JP2016531242A (en) |
| KR (1) | KR20160055230A (en) |
| CN (1) | CN105531449A (en) |
| WO (1) | WO2015036543A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111542717A (en) * | 2017-10-31 | 2020-08-14 | 马斯克公司 | Apparatus and method for blending oil on a marine vessel |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK179212B1 (en) * | 2015-10-20 | 2018-02-05 | A P Møller Mærsk As | Method and apparatus for preparing an oil to be supplied to the cylinders of a two-stroke crosshead engine |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6441619A (en) * | 1987-08-04 | 1989-02-13 | Sumitomo Heavy Industries | Lubricating oil regulating feeding device for internal combustion engine |
| JPH01125509A (en) * | 1987-11-09 | 1989-05-18 | Mitsubishi Heavy Ind Ltd | Cylinder liner lubricating device for diesel engine |
| US5511524A (en) * | 1992-03-16 | 1996-04-30 | Yamaha Hatsudoki Kabushiki Kaisha | Lubricating oil supplying system for engine |
| US6161510A (en) * | 1998-07-10 | 2000-12-19 | Kioritz Corporation | Separate lubricating device for an internal combustion engine |
| EP1158155A3 (en) * | 2000-05-24 | 2002-09-04 | DEUTZ Aktiengesellschaft | Modularly built engine |
| CN1195938C (en) * | 2001-03-16 | 2005-04-06 | 曼B与W狄赛尔公司 | Method of operating reciprocating piston internal combustion engine and reciprocating piston internal combustion engine |
| CN202132080U (en) * | 2011-07-08 | 2012-02-01 | 天津港轮驳有限公司 | Emergent recovery self-absorption compensation device for ship main engine lubricating oil pump |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4234435A (en) | 1979-02-23 | 1980-11-18 | The Lubrizol Corporation | Novel carboxylic acid acylating agents, derivatives thereof, concentrate and lubricant compositions containing the same, and processes for their preparation |
| US6339051B1 (en) | 1998-06-11 | 2002-01-15 | Mobil Oil Corporation | Diesel engine cylinder oils |
| US6874459B2 (en) | 2002-02-26 | 2005-04-05 | Exxonmobil Research And Engineering Company | Modification of lubricant properties in an operating all loss lubricating system |
| US6779505B2 (en) | 2002-04-23 | 2004-08-24 | Exxonmobil Research And Engineering Company | Method of employing instrumentation to efficiently modify a lubricant's flow rate or properties in an operating all-loss lubricating system |
| US7316992B2 (en) | 2004-09-24 | 2008-01-08 | A.P. Moller-Maersk A/S | Method and system for modifying a used hydrocarbon fluid to create a cylinder oil |
| JP2006138232A (en) * | 2004-11-11 | 2006-06-01 | Ihi Marine United Inc | Cylinder oil preparing and feeding device for internal combustion engine |
| US7928043B2 (en) | 2005-10-14 | 2011-04-19 | The Lubrizol Corporation | Lubricating compositions |
-
2014
- 2014-09-12 KR KR1020167009511A patent/KR20160055230A/en not_active Application Discontinuation
- 2014-09-12 WO PCT/EP2014/069501 patent/WO2015036543A1/en active Application Filing
- 2014-09-12 CN CN201480050013.8A patent/CN105531449A/en active Pending
- 2014-09-12 JP JP2016542322A patent/JP2016531242A/en active Pending
- 2014-09-12 EP EP14765934.6A patent/EP3044431A1/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6441619A (en) * | 1987-08-04 | 1989-02-13 | Sumitomo Heavy Industries | Lubricating oil regulating feeding device for internal combustion engine |
| JPH01125509A (en) * | 1987-11-09 | 1989-05-18 | Mitsubishi Heavy Ind Ltd | Cylinder liner lubricating device for diesel engine |
| US5511524A (en) * | 1992-03-16 | 1996-04-30 | Yamaha Hatsudoki Kabushiki Kaisha | Lubricating oil supplying system for engine |
| US6161510A (en) * | 1998-07-10 | 2000-12-19 | Kioritz Corporation | Separate lubricating device for an internal combustion engine |
| EP1158155A3 (en) * | 2000-05-24 | 2002-09-04 | DEUTZ Aktiengesellschaft | Modularly built engine |
| CN1195938C (en) * | 2001-03-16 | 2005-04-06 | 曼B与W狄赛尔公司 | Method of operating reciprocating piston internal combustion engine and reciprocating piston internal combustion engine |
| CN202132080U (en) * | 2011-07-08 | 2012-02-01 | 天津港轮驳有限公司 | Emergent recovery self-absorption compensation device for ship main engine lubricating oil pump |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111542717A (en) * | 2017-10-31 | 2020-08-14 | 马斯克公司 | Apparatus and method for blending oil on a marine vessel |
| CN111542717B (en) * | 2017-10-31 | 2022-07-01 | 马斯克公司 | Apparatus and method for blending oil on a marine vessel |
| US11473461B2 (en) | 2017-10-31 | 2022-10-18 | Maersk A/S | Apparatus and method for blending oil on a marine vessel |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3044431A1 (en) | 2016-07-20 |
| WO2015036543A1 (en) | 2015-03-19 |
| JP2016531242A (en) | 2016-10-06 |
| KR20160055230A (en) | 2016-05-17 |
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Application publication date: 20160427 |