CN101718214B - For lubricating method and this large-sized diesel motor of large-sized diesel motor - Google Patents
For lubricating method and this large-sized diesel motor of large-sized diesel motor Download PDFInfo
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- CN101718214B CN101718214B CN200910204714.3A CN200910204714A CN101718214B CN 101718214 B CN101718214 B CN 101718214B CN 200910204714 A CN200910204714 A CN 200910204714A CN 101718214 B CN101718214 B CN 101718214B
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- crank
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Classifications
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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
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/02—Arrangements of lubricant conduits
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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
- F01M1/08—Lubricating systems characterised by the provision therein of lubricant jetting means
-
- 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
-
- 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
- F01M1/08—Lubricating systems characterised by the provision therein of lubricant jetting means
- F01M2001/083—Lubricating systems characterised by the provision therein of lubricant jetting means for lubricating cylinders
-
- 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
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/02—Arrangements of lubricant conduits
- F01M2011/022—Arrangements of lubricant conduits for lubricating cylinders
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The present invention relates to the method for lubricating large-sized diesel motor and this large-sized diesel motor.Specifically, propose a kind of method for lubricating large-sized diesel motor, this large-sized diesel motor has at least one cylinder (2) being arranged in cylinder group (3), having can the piston (5) that moves back and forth of the running surface (21) along cylinder (2), this piston (5) defines on the crank axle (10) that combustion space (6) and being connected to is arranged in crank shell (4), wherein, in order to lubricate piston (5), lubricant is introduced cylinder (2) from lubricant source (62), this lubricant is because being contaminated in combustion space (6) middle combustion process occurred.Contaminated lubricant deflected from cylinder (2) before it can enter crank shell (5), and was channeled to afterwards be cleaned in cleaning device (60) and at this.Further it is proposed that the large-sized diesel motor of a kind of correspondence.
Description
Technical field
The present invention relates to the independent claims according to respective type preamble for moistening
The method of sliding large-sized diesel motor and this large-sized diesel motor.
Background technology
The large-sized diesel motor that may be made in two stroke engine or four-stroke engine is usual
As the driver element of ship or also use in fixed operation, such as, be used for driving large-scale
Engine produces electric energy.In this regard, motor generally in continuous operation mode with the biggest
Time span operate, this allows for needing higher job security and work available
Property.Therefore, especially long term maintenance rate, less abrasion and work fuel economic use for
Main standard is become for operating personnel.
In this regard, the meaning that piston lubrication is important is given.In working order, piston is continued to use
Making the cylinder inner wall sliding of running surface, wherein, cylinder is generally made as cylinder and runs sleeve
(bush) shape.On the one hand, piston must be as easily as possible (i.e., without barrier) at cylinder
Middle sliding, and on the other hand, piston must seal the combustion space in cylinder, and as far as possible
Guarantee that the energy efficient discharged during combustion process is converted into mechanical power.
For that reason, during Diesel engine works, generally lubricating oil is introduced cylinder
Realize the good operation characteristic of piston, and keep cylinder wall, piston and piston ring the least
Abrasion.Additionally, lubricating oil is used for neutralizing aggressivity combustion product, and for anticorrosion.By
In these numerous requirements, thus be used as lubricating oil be typically that the highest grade and thing costly
Matter.
At present, generally use that the two single lubricating systems of set come for band crosshead transmission is large-scale
Two-stroke diesel engine.A set of lubricating system includes so-called system oil or system lubricant,
It is commonly used for lubricating all bearings or axle journal, such as the base bearing of crank axle, cross head bearing
Base bearing, the base bearing etc. of crosshead, and also it is frequently used for (internal) cooling of piston.Separately
A set of lubricating system include specialized gas cylinders oil or lubricant cylinder, be commonly used for lubricate piston,
Piston ring, and running surface.Lubricant cylinder is only running stores (" total loss "), i.e. exists
After it has been applied on running surface or piston and is contaminated in combustion space, just will
Residual collection also removes.Therefore, although the revolution every time of engine consumes vapour the most continuously
Cylinder oil, but in most of situations, system lubricant is not running stores, i.e. carries out it clearly
Clean and be reintroduced back to afterwards in lubricant source.
Generally, a kind of lubricant is used for the large-scale four-cycle diesel engine with connecting rod,
Wherein, this lubricant is applied not only to piston lubrication and for bearing lubrication, and the most alternatively
Cool down for internal piston.For these machines, the lubricant polluted because of combustion process is usual
Pushed down on by piston when piston running surface along internal cylinder wall moves downward, and
Drop onto from the lower end of cylinder in the food tray being arranged at crank outer casing bottom, wherein, this food tray
Can act as lubricant source.Here, the highly polluted lubricant of combustion space is come from another
A kind of lubricant mixes mutually, and produces contaminated lubricant extremely strong because of the significant difference of volume
Dilution.It is cleaned also being known to the lubricating oil coming from food tray.
Summary of the invention
In view of making large-sized diesel motor more effectively do work, need two class engines (i.e. two
Stroke Engine and four-stroke engine) lubrication improve.
Therefore, it is an object of the present invention to provide one for lubricating large-sized diesel motor
Method, its job security need not be made any compromise in the case of improve engine
Efficiency and economy.Another object of the present invention is to provide the large-sized diesel of a kind of correspondence to start
Machine.
Meeting the subject of the present invention of these purposes in terms of relevant technology and equipment, it is special
Point is the feature of the independent claims of respective type.
Therefore, propose a kind of method for lubricating large-sized diesel motor according to the present invention,
This large-sized diesel motor has at least one cylinder being arranged in cylinder group, and having can be along vapour
The piston that running surface in cylinder moves back and forth, this piston defines combustion space and is connected to set
Putting on the crank axle in crank shell, wherein, lubricant introduces cylinder from lubricant source
For the lubrication of piston, and by there is the dirt of the combustion process in combustion space in this lubricant
Dye.Contaminated lubricant deflected from cylinder before it can enter in crank shell, and drew afterwards
It is directed at the cleaning device that lubricant is cleaned.
Contaminated lubricant is deflected from cylinder clear to it before it can enter crank shell
Clean measure its result for lubrication large-sized two-stroke diesel engine is, comes from combustion
Waste product as known in the art no longer regarded as by the lubricating oil burning space, but can be by clear
Clean reuse.From the viewpoint of economy, this is a biggest advantage.For large-scale
For the lubrication of four-cycle diesel engine, its result of the method according to the invention is, highly
The lubricant polluted can be gone up and the lubricant phase more cleaned at crank shell bottom plate (floor) at it
Cylinder is deflected from before mixing.But, about cleaning, if contaminated lubricant is with more
If concentrate form be cleaned than contaminated lubricant first with cleaning lubricant
Mixing and be cleaned afterwards will be more effectively mutually.Therefore, similarly for four-stroke engine,
Achieve the significant performance boost about lubrication.
Preferably, it is being positioned at the lower dead point position of last piston ring and cylinder group and crank shell
Between border between position contaminated lubricant is deflected from.Last piston ring refers to from combustion
Burn the piston ring that space is farthest.This last piston ring may also be fabricated which oil-scraping ring.In other words, should
Measure can ensure that, collects the lubrication being derived from combustion space or running surface as much as possible
Agent, and be effectively prevented with crank shell present in oil phase mix.
Specifically, from the point of view of the structure viewpoint of two stroke engine design, it is particularly advantageous that
If contaminated lubricant is deflected from stuffing-box (stuffing box) place, and the most direct
Above the stuffing-box being arranged between cylinder group and crank shell.
Given advantageous measures is, is directed in lubricant source by the lubricant cleaned,
To guide lubricant in lubricant circuit.Especially for two stroke engine, it is used for living
The lubricant of plug lubrication and/or steam-cylinder lubrication is the most no longer to be necessary for removing after it uses
Running stores, but can be reintroduced back to after the cleaning in lubricant source, maybe can cause lubricant
Other position in loop.This likely significantly reduces the lubricating requirement of engine, such as by making
Come from this lubricant of internal cylinder space again to circulate and reduce by 300% or more.With
Time, it is possible to increase within the unit interval, it is applied to the lubrication rates on running surface or piston
(lubrication rate) and/or amounts of lubrication, to realize even preferably lubricating.Although lubrication rates
Improving, but can greatly reduce total lubricating requirement by feeding back the lubricant cleaned, this is also
It it is the remarkable advantage in terms of economy.
Especially for four-stroke engine, clean highly polluted lubricant and cause lubricating total amount
Aging slow down, for the change interval of lubrication and/or refill interval and can greatly extend, and
Less lubricant is caused to remove as waste product.
Particularly advantageously, the method according to the invention also makes for two stroke engine, has
May only provide a kind of lubricant for lubricating piston, and also can at least be used for lubricating axle journal or
Bearing and/or be used for cooling down piston.Therefore, in this way it is no longer necessary to there is two sets single lubricant system
The lubrication known in the art of system, this also results in and reduces the working strength for equipment
And/or cost.
Given advantageous measures is, the viscosity of monitoring lubricant and/or BN (base number) value.
Therefore, it can be appreciated that when these values exceed or fall below the critical value allowed.For such feelings
Shape, then can take adequate measures.
Advantageously, during operation, fresh lubricant is had to be fed to lubricant circuit.One side
Face, thus may replace burning or leaks the lubricant lost, on the other hand, the one of lubricant
A little characteristics, such as its viscosity or BN value, can be arranged to appropriate value by adding fresh lubricant.
In this regard, favourable measure is, fresh lubricant is fed to lubricant circuit,
It is made first to cool down piston before first introducing cylinder.In other words, fresh lubricant can be use up
May be effectively introduced in lubricant circuit.
Preferably, additive is fed to lubricant.Such as, can be by adding pure additive
Systematically and controllably to change the BN value of lubricant or chemical property.
In order to realize the particularly effective collection of lubricant that is pointed in running surface and/or strike off,
If striking off lubricant from the running surface of cylinder by being arranged on the oil-scraping ring at piston
If may be advantageously.
Additionally, according to the invention it is proposed that a kind of there is at least one being arranged in cylinder group
The large-sized diesel motor of cylinder, wherein, piston can the running surface along cylinder move back and forth,
This piston defines combustion space, and is connected to be arranged on the crank axle in crank shell, wherein,
From lubricant source, lubricant is caused lubricating inlet cylinder so that lubrication piston, and lubricant is because occurring
Combustion process in combustion space and be contaminated, and outlet is arranged for contaminated
Lubricant, and arrange and be adapted such that contaminated lubricant can be in it enters crank shell
Deflect from cylinder before, but also provide the cleaning device being connected in outlet and come for contaminated
Lubricant.
It is additionally operable to according to the present invention about being set out in same meaning of the method according to the invention
Large-sized diesel motor, this large-sized diesel motor may be made in two stroke engine and also
May be made in four-stroke engine.
For reasons of having illustrated, please be connected on lubricant source by clean device, in order to profit is provided
Lubrication prescription loop.
Outlet for contaminated lubricant is preferably disposed within and is positioned under last piston ring
The position between border between dead point and cylinder group and crank shell.
For the large-sized diesel motor according to the present invention, especially for two stroke engine,
Outlet for contaminated lubricant is preferably also arranged at and is arranged at outside cylinder group and crank
At stuffing-box between shell.
Especially for large-scale four-cycle diesel engine, the collection device for lubricant is arranged
When cylinder lower end such as collection channel or groove advantageously.
Other advantageous measures of the present invention and preferred embodiment are produced by dependent claims.
Accompanying drawing explanation
Hereinafter, will with reference to embodiment and accompanying drawing in terms of equipment and in terms of technology more
For being set forth in the present invention.The sketch (partly with cross section) being not necessarily to scale shows
Go out:
Fig. 1: according to the of the large-sized diesel motor being made for two stroke engine of the present invention
One embodiment,
Fig. 2: according to the of the large-sized diesel motor being made for four-stroke engine of the present invention
Two embodiments,
Fig. 3: for the embodiment of the collection device of lubricant, and
Another embodiment of Fig. 4: collection device.
Detailed description of the invention
With the schematic partial diagram of sectional view, it is big that Fig. 1 shows according to the first embodiment of the present invention
Type Diesel engine, it represents with reference number 1 generally, and performs wherein according to this
Bright lubricating method.
This large-sized diesel motor 1 is made for the two-stroke ten with longitudinally scavenged slow running
Prefix large-sized diesel motor.
Large-sized diesel motor 1 generally includes multiple cylinder 2, only it can be seen that multiple vapour in Fig. 1
In cylinder 2 one.Cylinder 2 is arranged in cylinder group 3, and this cylinder group 3 is positioned at crank shell
The top of 4.Piston 5 is arranged to move back and forth in each cylinder 2, and piston is in work
State is moved along the running surface 21 at cylinder 2 inwall.Generally, running surface 21 is by vapour
Cylinder inner matter (inset) or lining are formed.According to diagram, at piston 5 end thereon, it is defined in it
The combustion space 6 of middle generation combustion process, and piston is generally of not shown in Fig. 1 many
Individual piston ring.Piston 5 is connected in crosshead 8 via piston rod 7, and crosshead 8 is the most again
It is connected on the crank axle 10 that is arranged in crank shell 4 via push rod 9.
For via piston rod from the guiding of cylinder group 3 to crank shell 4, with the most public
The mode known provides the stuffing-box 34 around piston rod.
During large-sized diesel motor works, with natively known manner, lubricant is executed
Being added to running surface 21, this lubricant lubrication piston 5, piston ring and running surface, to realize
The good operation characteristic of piston and holding cylinder wall, piston 5 and piston ring wear and tear as small as possible.
Additionally, lubricating oil is used as to neutralize aggressivity combustion product, and for anticorrosion, such as sulfur corrosion.
Lubricant may pass through cylinder 2 wall and/or is applied in running surface 21 through piston 5 is internal.
Original known all lubricating methods, as pulsation lubrication or gathering lubricate (random lubrication),
It is suitable for this purpose.All known media, as is common for the profit of large-sized diesel motor
Lubricating oil, is suitable for as lubricant.
Lubricant is dirty by height because of the combustion process in combustion space 6 and mechanical wear
Dye, such as residue of combustion, wear particle, abrasive fines or compound, these are invaded because neutralizing
Erosion property combustion product and produce.
When the piston 5 according to diagram moves downward, by piston 5 and/or piston ring from operation
Lubricating oil is struck off on surface 21, and the cylinder group 3 being collected in stuffing-box 34 region
At Di Bu.Generally, being provided with chamfering 35 in this place, lubricant can pass through via this chamfering 35
Outlet 36 outflow.According to prior art, this highly polluted lubricant is removed, because its
It is no longer available for other application.
According to the present invention, now propose and contaminated lubricant can be entered crank shell at it
Cylinder 2 was deflected from, during (as shown in arrow 40) is fed to cleaning device 60 afterwards and at this before in
It is cleaned.
It was unexpected that shown that the highly polluted lubricant coming from combustion space can get good
Clean well, cause it to can be used for other application.This is that in terms of economy is the most notable
Advantage.
Preferably, the lubricant (as by shown in arrow 41) cleaned is fed to lubricant source
In 62, lubricant is the most also taken from this lubricant source 62.Lubricant source 62 is also via connection
Pipeline (arrow 45) is connected on food tray 66, and this food tray 66 is arranged on the base portion of crank shell 4,
Make the lubricant collected in this place can arrive lubricant source 62 from food tray 66.So, just obtain
Obtaining lubricant circuit, wherein, lubricant takes out from lubricant source 62, applies it to vapour
Piston (symbolically being illustrated by the arrow 42 in Fig. 1) is lubricated, so in cylinder running surface 21
Struck off from running surface 21 when it moves downward according to diagram by piston 5 afterwards, via
Outlet 36 (arrow 40) arrives cleaning device 60, is cleaned in this place, is the most again fed to
Lubricant source 62.Come from the lubrication in crank shell (such as, come from cross lubrication or
Journal lubrication) lubricant collection in food tray 66, and then can be via connector (arrow 45)
Arrive source of lubrication 62.
Therefore, for the two-stroke embodiment of the large-scale diesel engine according to the present invention, it is derived from operation
The contaminated lubricant on surface 21 is not the most re-used as waste product and removes, but to have cleaned
Form is reintroduced back in lubricant circuit.This recycling measure achieves the very big joint of lubricant
Save.For improving lubrication, even if when lubrication rates (that is, is executed at time per unit or every stroke
The lubrication amount being added in running surface 21) compare known large-sized two-stroke diesel engine and obtain
During raising, the lubrication consumption for steam-cylinder lubrication also can reduce 300% or more.
As shown in fig. 1, buffer store 61 may be provided at cylinder 2 and exports 36 and sanitizer cartridge
Put between 60, temporarily to store contaminated lubricant.
Further it is provided that lubricant reservoir 63 and other holder 64, fresh oil
Agent can introduce lubricant circuit (arrow 43) from lubricant reservoir 63.Such as, for lubricant
Additive can be stored in holder 64, when needed, this additive can introduce lubricant
In loop (as shown in arrow 44), such as, so that the BN value (base numerical value) of lubricant is arranged
Become desired value.Other holder can be configured as certainly in order to other material is introduced lubrication
In agent loop.
Optionally, lubricant circuit is also equipped with monitoring means 65, and it can be utilized to come
Monitor and/or control or analyze character and/or the composition of lubricant.Such as, monitoring means is used
The viscosity of lubricant can be analyzed, as analyzing its chemical composition, temperature etc..Monitoring means
Such as can regulate fresh lubricant, interpolation according to the measurement result that provides it or input signal
Agent or the feed of other composition.
It has been shown that the side that the lubricant being derived from running surface is deflected from and cleans by this utilization
Method, it is also possible to only for lubricating piston and lubrication axle journal and optional with a kind of lubricant
Ground piston in cooling large-sized two-stroke diesel engine.The most normally used two set profits
Lubrication prescription system (i.e. have the lubricating system of system lubricant and be isolated from it there is steam-cylinder lubrication
The lubricating system of agent) it is the most no longer required.Fig. 1 shows such a kind of large-sized two-stroke bavin
The embodiment of oil turbine, wherein, it is provided that previous a set of lubricating system, this lubricating system
The profit of identical lubricant is provided including all positions needing lubrication in large-sized diesel motor 1
Lubrication prescription loop.In non-exclusionism inventory, these positions for example, running surface 21 and having
The piston 5 of piston ring, the base bearing of crank axle 10, the bearing of push rod 9, crosshead journal,
The slideway of crosshead 8 and/or sliding shoes, and piston rod axle journal.Additionally, lubricant also can use
Natively known manner cools down piston.For this purpose it is proposed, lubricant is drawn as cooling oil
Enter piston 5 internal, and flow back to lubricant source 62 via food tray 66 from piston 5 inside alternatively.
When only using a kind of lubricant in large-sized two-stroke diesel engine, relative to viscosity
Make compromise with BN value.Master for piston lubrication and/or steam-cylinder lubrication, to lubricant
Require to be that it can neutralize aggressivity combustion product and cleaning capacity (dirt-removing power) thereof, and
For other system is applied, local extreme high pressure and its back mixing that lubricant is stood are closed
Property (demulsibility) is then extremely important, wherein, and this anti-Combination e.g. its dividing with water
From property.Generally, the viscosity of lubricant is represented by No. SAE (SAE: american car engineering association).
When only using a kind of lubricant in large-sized diesel motor 1, such as, can use SAE 40
With the lubricant of BN 40, other lubricant being generally used for four-stroke engine maybe can be used.
But, the method according to the invention or according to these of the large-sized diesel motor of the present invention
Embodiment is also possible to provide the two single lubricant systems of set, especially at two stroke engine
Situation in, the most a set of for steam-cylinder lubrication and/or for piston lubrication and another set of for system
Lubrication (that is, journal lubrication and alternatively piston cooling).Utilize this type of embodiment, for cylinder
The system of lubrication the most preferably is made for lubricant circuit, wherein, from the operation of cylinder 2
The lubricant polluted by combustion process is struck off on surface 21, is derived cylinder 2, cleans it,
Then it be fed to lubricant source again, and from lubricant source, lubricant is re-applied to run
For piston lubrication and steam-cylinder lubrication on surface 21.
Cleaning device 60 preferably includes the centrifuge being cleaned lubricant wherein.Especially
It is particulate or insoluble liquid component such as water, can separate in centrifuge.May be favourable
It is to be connected to be centrifuged by multiple mechanical filters different to the mechanical coarse filter of coarse grain or fineness
Before machine so that first contaminated lubricant is cleaned by mechanical filter.
Alternately or in addition to centrifuge, chemically cleaning device also can provide into for lubricant,
Such as, for removing from lubricant selectively because neutralizing produced by aggressivity combustion product
Material.Such as, after the calcium being present in new oil combine burning time produce sulfate from
Son, concurrently forms calcium sulfate, can be such as by precipitation reaction and subsequently after this calcium sulfate
Again remove when filtration is cleaned.
In the embodiment provided in FIG, the lubricant circuit provided especially may also provide
There is the fresh lubricant coming from lubricant reservoir 63.So, the most replaceable by letting out
The lubricant that leakage, burning or other process are lost.On the other hand, by introducing fresh oil
Agent, can use controlled mode to change the character of lubricant, such as its BN value.
Fresh lubricant is fed on lubricant circuit any position in the loop the most all
It is feasible, thus produces high degree of flexibility.Therefore, specifically, it can be advantageous that will
Fresh lubricant introduces in lubricant circuit so that this lubricant is being applied to cylinder first
First piston is cooled down before running surface 21.In this case, fresh lubricant is fed to
The pipeline being arranged on the oil cooling pipe line within piston 5 is led to, in order to can from lubricant source 62
Utilize fresh lubricant to realize preferable cooling performance.
The additive or the multiple additives that come from holder 64 also can be in lubricant circuit
Any indefinite position introduces.Particularly advantageously when introducing an additive into lubricant circuit,
Make additive direct and lubrication before applying a lubricant to the running surface 21 of cylinder 2
Agent combines.
According to application scenario, some other applicable or favourable positions certainly can be there are, at these
Position, will come from the fresh lubricant of lubricant reservoir 63 or comes from holder 64
Additive introduces in lubricant circuit.
Strike off efficiency to improve the lubrication at running surface 21 and therefore improve recycling
Total amount, it is advantageous that also oil-scraping ring is being arranged on piston 5 in addition to piston ring, or will be
Back piston annular becomes oil-scraping ring." finally " piston ring on piston 5 means from combustion space 6
Farthest piston ring.Oil-scraping ring also assures that and updates oil film or profit in running surface 21 soon
Synovial membrane, this is owing to essentially all contaminated oil all strikes off from running surface 21.
By all these measures (such as so that the lubricant coming from running surface 21 is carried out
Recycle, or efficiency struck off in increase), the lubricant that can significantly reduce large-sized diesel motor 1 disappears
Consumption.Thus it is for example possible to the longitudinally scavenged large-sized two-stroke diesel according to Fig. 1 is started
The lubricant consumption of machine 1 or lubrication oil consumption are reduced to scope from 0.2g/kWh (gram/kilowatt-hour)
Value to 0.6g/kWh.Meanwhile, the lubrication rates of increase can be used.
Certainly it is also possible to contaminated lubricant is drawn in the position being different from stuffing-box 34
From cylinder 2.In order to ensure collecting contaminated lubricant as efficiently as possible, it is advantageous that
Diagram according to Fig. 1 be positioned at the position below the lower dead point position of last piston ring and/or
The position in oil-scraping ring (if present) lower section is provided to be deflected from by contaminated lubricant.
It is also understood that can be also that lubricant provides more than one outlet 36, say, that
Also from two or more diverse locations, contaminated lubricant can be deflected from cylinder 2.
Alternately or additionally, according to diagram, the outlet for lubricant can also be provided at filler
In letter 34 or the lower end of stuffing-box 34.Therefore, the most also can collect and stick to piston rod 7
On lubricant.
Additionally, certainly it is also possible to the lubricant of cleaning device 60 will not be come from directly or complete
Portion it is fed to lubricant source 62, but it is introduced lubrication in one or more various locations
Agent loop.
Fig. 2 shows the letter of the second embodiment of the large-sized diesel motor 1 according to the present invention
Figure, performs the method according to the invention wherein, and this large-sized diesel motor 1 is made for greatly
Type four-cycle diesel engine 1.Have the part of same or similar function be provided with in Fig. 1
Identical reference number.
With reference to given by Fig. 1 and first embodiment be described the most in a similar manner or with
Identical implication is applied to the second embodiment.
For the large-scale four-cycle diesel engine 1 according to Fig. 2, piston 5 is straight via connecting rod 9 '
Receive in succession on crank axle 10.Fig. 2 shows the multiple piston rings 51 being positioned at piston 5,
Last piston ring therein (i.e. farthest from combustion space 6 piston ring) is made for oil-scraping ring
52。
Upper end in the combustion space 6 according to diagram, it is provided that at least one inlet valve 68 He
One outlet valve 69.
In the region of cylinder 2, owing to the structure of connecting rod 9 ' makes cylinder group 3 towards crank shell
4 open wide, and i.e. there is stuffing-box unlike in two stroke engine.It is made for lubricant source
The food tray of 62 is positioned at the base portion of crank shell 4.
At work, moving downward lubricant from the running surface of cylinder 2 by piston 5
21 and/or cylinder buss on strike off.
Prior art is: because of combustion process by highly polluted lubricant from cylinder 2
Border drops in crank shell 4, and mixes mutually with the rest lubricant in lubricant source 62.
Owing to the contaminated amounts of lubrication struck off in running surface 21 is compared to lubricant total amount
Say little to ignoring, therefore contaminated lubricant obtains the strongest dilute in lubricant source 62
Release.
According to the present invention, it is therefore prevented that the highly polluted lubricant struck off from running surface 21
Dripping downward in crank shell 4, this is owing to this contaminated lubricant can enter crank at it
Deflect from cylinder before in shell 4, and direct it to cleaning device 60 afterwards.
For this purpose it is proposed, collector unit 22 is arranged on vapour in large-scale four-cycle diesel engine 1
The lower end of cylinder 2, and collect the contaminated lubricant struck off from running surface 21, make
Obtain this lubricant can not enter in crank shell 4, and thus without without entering cleanly
Enter lubricant source 62.
Fig. 3 and Fig. 4 shows two embodiments of collector unit 22.
According in the embodiment of Fig. 3, at the lower end of cylinder 2 or at the cylinder according to diagram
The lower end of lining, is provided with groove 221 along total circumference, at its base portion, is provided with at least one
Individual exit opening 222, via this exit opening 222, contaminated lubricant can enter outlet
In 36.
In the another embodiment of the collection device 22 that figure 4 illustrates, it is provided with groove 223,
It extends along total circumference in the region of cylinder 2 lower end or cylinder buss lower end.From table
The lubricant collection struck off on face 21 is wherein.Contaminated lubricant does not shows via in Fig. 4
The exit opening gone out flows into outlet 36 from groove 223.Preferably, groove 223 is towards cylinder
2 outer walls are downward-sloping, so as to preferably collect lubricant (as shown in Figure 4).
For large-scale four-cycle diesel engine, such embodiment is also feasible, i.e. at it
In provide two single lubricant circuit, i.e. one for steam-cylinder lubrication and/or piston profit
Sliding, and another is for journal lubrication and optionally for piston cooling.
Should be appreciated that in the embodiment of fig. 2, will at diverse location or multiple various location
It is also feasible that contaminated lubricant deflects from the modification of cylinder 2.Contaminated lubricant is preferred
It is to be positioned at last piston ring or the bottom dead centre of oil-scraping ring 52 and cylinder group 3 and crank shell 4
Between border between a position or multiple position deflect from.Have only in principle prevent in a large number
Contaminated lubricating oil is directly entered source of lubrication from running surface 21 via crank shell 4.
Owing to highly polluted lubricant can not mix with the lubricant in lubricant source 62 mutually at it
Deflect from cylinder 2 in the case of conjunction, therefore contaminated lubricant is not diluted, and thus can
Cleaning device 60 obtains preferably and more efficiently clean.
Claims (18)
1., for the method lubricating large-sized diesel motor, described large-sized diesel motor has
There is at least one cylinder (2) being arranged in cylinder group (3), with can be along described cylinder (2)
The piston (5) that running surface (21) moves back and forth, described piston (5) defines combustion space (6), and institute
State on the crank axle (10) that piston (5) is connected to be arranged in crank shell (4), wherein, in order to moisten
Sliding described piston (5), introduces described cylinder (2) by lubricant from lubricant source (62), wherein,
Described lubricant is contaminated, by institute because there is the combustion process in described combustion space (6)
State contaminated lubricant and deflect from described cylinder (2), and be channeled to cleaning device (60) afterwards,
At described cleaning device (60) place, before described lubricant can enter in described crank shell (4)
Described lubricant is cleaned, it is characterised in that be arranged on described cylinder group (3) with described
Described contaminated lubricant is deflected from by stuffing-box (34) place between crank shell (4), prevent with
Present in described crank shell (4), lubricant mixes mutually, which provides a set of lubricating system,
Described lubricating system includes that all positions needing lubrication in described large-sized diesel motor carry
For the lubricant circuit of identical lubricant, wherein, described all positions at least include described crank
The base bearing of axle (10).
2., for the method lubricating large-sized diesel motor, described large-sized diesel motor has
There is at least one cylinder (2) being arranged in cylinder group (3), with can be along described cylinder (2)
The piston (5) that running surface (21) moves back and forth, described piston (5) defines combustion space (6), and institute
State on the crank axle (10) that piston (5) is connected to be arranged in crank shell (4), wherein, in order to moisten
Sliding described piston (5), introduces described cylinder (2) by lubricant from lubricant source (62), wherein,
Described lubricant is contaminated, by institute because there is the combustion process in described combustion space (6)
State contaminated lubricant and deflect from described cylinder (2), and be channeled to cleaning device (60) afterwards,
At described cleaning device (60) place, before described lubricant can enter in described crank shell (4)
Described lubricant is cleaned, it is characterised in that in the bottom dead centre position being positioned at last piston ring
Put the position between the border between described cylinder group (3) and described crank shell (4) by described
Contaminated lubricant deflects from, and which provides a set of lubricating system, and described lubricating system includes
The all positions needing lubrication in described large-sized diesel motor provide the profit of identical lubricant
Lubrication prescription loop, wherein, described all positions at least include the base bearing of described crank axle (10).
Method the most according to claim 1 and 2, it is characterised in that the profit that will have cleaned
Lubrication prescription guides to described lubricant source (62), in order to described lubricant is directed to lubricant circuit
In.
Method the most according to claim 3, it is characterised in that by fresh lubricant feed
To described lubricant circuit.
Method the most according to claim 4, it is characterised in that by described fresh lubricant
It is fed to described lubricant circuit, in order to described fresh lubricant is being firstly introduced described cylinder
(2) it was made first to cool down described piston (5) before in.
Method the most according to claim 1 and 2, it is characterised in that described lubricant is used
In lubricating described piston (5), and the most at least it is used for lubricating bearing or axle journal and/or for cooling down
State piston (5).
Method the most according to claim 6, it is characterised in that by fresh lubricant feed
To described lubricant circuit.
Method the most according to claim 7, it is characterised in that by described fresh lubricant
It is fed to described lubricant circuit, in order to described fresh lubricant is being firstly introduced described cylinder
(2) it was made first to cool down described piston (5) before in.
Method the most according to claim 1 and 2, it is characterised in that monitor described lubrication
The viscosity of agent and/or BN (base number) value.
Method the most according to claim 9, it is characterised in that fresh lubricant is supplied
Give described lubricant circuit.
11. methods according to claim 10, it is characterised in that by described fresh oil
Agent is fed to described lubricant circuit, in order to described fresh lubricant is being firstly introduced described vapour
It was made first to cool down described piston (5) before in cylinder (2).
12. methods according to claim 1 and 2, it is characterised in that additive is supplied
Give described lubricant.
13. methods according to claim 1 and 2, it is characterised in that by being arranged on
The oil-scraping ring (52) at described piston (5) place, by the described lubricant running surface from described cylinder (2)
(21) strike off on.
14. 1 kinds of large-sized diesel motors, it has at least one being arranged in cylinder group (3)
Cylinder (2), with can the piston (5) that moves back and forth of the running surface (21) along described cylinder (2),
Described piston (5) boundary is determined combustion space (6) and is connected to the crank being arranged in crank shell (4)
On axle (10), with for lubricant is fed to described cylinder (2) from lubricant source (62) so that
Lubricating the lubricating inlet (42) of described piston (5), wherein, described lubricant is because of at described burning sky
Between combustion process of occurring in (6) and be contaminated, described contaminated lubricant is provided
Outlet (36), described outlet is arranged and is adapted such that described contaminated lubricant can at it
Described cylinder (2) is deflected from before entering in described crank shell (4), and for described contaminated
Lubricant additionally provides cleaning device (60), and described cleaning device (60) is connected to described outlet (36)
On, it is characterised in that the described outlet (36) for described contaminated lubricant is arranged in and carries
For, on the stuffing-box (34) between described cylinder group (3) and described crank shell (4), preventing and institute
State lubricant present in crank shell (4) to mix mutually, which provide a set of lubricating system, institute
State lubricating system and include that all positions needing lubrication in described large-sized diesel motor provide
The lubricant circuit of identical lubricant, wherein, described all positions at least include described crank axle
(10) base bearing.
15. large-sized diesel motors according to claim 14, it is characterised in that described
Cleaning device (60) is connected on described lubricant source (62).
16. 1 kinds of large-sized diesel motors, it has at least one being arranged in cylinder group (3)
Cylinder (2), with can the piston (5) that moves back and forth of the running surface (21) along described cylinder (2),
Described piston (5) boundary is determined combustion space (6) and is connected to the crank being arranged in crank shell (4)
On axle (10), with for lubricant is fed to described cylinder (2) from lubricant source (62) so that
Lubricating the lubricating inlet (42) of described piston (5), wherein, described lubricant is because of at described burning sky
Between combustion process of occurring in (6) and be contaminated, described contaminated lubricant is provided
Outlet (36), described outlet is arranged and is adapted such that institute ` states contaminated lubricant can at it
Described cylinder (2) is deflected from before entering in described crank shell (4), and for described contaminated
Lubricant additionally provides cleaning device (60), and described cleaning device (60) is connected to described outlet (36)
On, it is characterised in that the described outlet (36) for described contaminated lubricant is arranged in place
In between the lower dead point position and described cylinder group (3) and described crank shell (4) of last piston ring
Position between border, which provides a set of lubricating system, described lubricating system include to
The all positions needing lubrication in described large-sized diesel motor provide the lubrication of identical lubricant
Agent loop, wherein, described all positions at least include the base bearing of described crank axle (10).
17. large-sized diesel motors according to claim 16, it is characterised in that described
Cleaning device (60) is connected on described lubricant source (62).
18. according to the large-sized diesel in any of the one of claim 14 to claim 17
Engine, it is characterised in that the collection device (22) for described lubricant is arranged on described vapour
The lower end of cylinder (2).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP08166055 | 2008-10-08 | ||
| EP08166055.7 | 2008-10-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101718214A CN101718214A (en) | 2010-06-02 |
| CN101718214B true CN101718214B (en) | 2016-08-24 |
Family
ID=40404917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910204714.3A Expired - Fee Related CN101718214B (en) | 2008-10-08 | 2009-09-29 | For lubricating method and this large-sized diesel motor of large-sized diesel motor |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2175107A1 (en) |
| JP (1) | JP2010090897A (en) |
| KR (2) | KR20100039813A (en) |
| CN (1) | CN101718214B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2479413A1 (en) * | 2011-01-24 | 2012-07-25 | Wärtsilä Schweiz AG | Piston for a stroke piston combustion engine |
| US9154678B2 (en) | 2013-12-11 | 2015-10-06 | Apple Inc. | Cover glass arrangement for an electronic device |
| JP6675956B2 (en) * | 2016-08-29 | 2020-04-08 | 三菱重工業株式会社 | Frame and crosshead internal combustion engine |
| CN108301893B (en) * | 2017-01-12 | 2023-12-29 | 上海外高桥造船海洋工程项目管理有限公司 | Backwash greasy dirt cabinet and lubricating oil circulation system comprising same |
| NL2029230B1 (en) * | 2021-09-23 | 2023-02-23 | Margaretha Maria Nicolaas Rombouts Cornelis | Internal combustion engine with means for condensation fluid removal |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19902928C1 (en) * | 1999-01-26 | 2000-08-24 | Daimler Chrysler Ag | Lubrication system for piston group of internal combustion engine, with closed circuit including device for wetting cylinder surface |
| EP1696021A2 (en) * | 2004-12-30 | 2006-08-30 | A.P. Moller - Maersk A/S | Method and system for improving fuel economy and environmental impact operating a 2-stroke engine |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58165515A (en) * | 1982-03-26 | 1983-09-30 | Mitsui Eng & Shipbuild Co Ltd | Method and device for injecting oil to cylinder of diesel engine |
| JPH0299708A (en) * | 1988-10-07 | 1990-04-11 | Mitsubishi Heavy Ind Ltd | Regeneration unit for cylinder oil |
| JPH02169006A (en) * | 1988-12-22 | 1990-06-29 | Mazda Motor Corp | Engine-oil deterioration preventing device |
| JPH0726687Y2 (en) * | 1989-05-08 | 1995-06-14 | 日産ディーゼル工業株式会社 | Engine oil viscosity detector |
| JPH03194109A (en) * | 1989-12-21 | 1991-08-23 | Mitsubishi Heavy Ind Ltd | Cylinder lubricating system |
| JPH0680805U (en) * | 1993-04-13 | 1994-11-15 | 三菱重工業株式会社 | Cylinder oil reuse device |
| DE19959309A1 (en) * | 1999-12-09 | 2001-06-21 | Man B & W Diesel As Kopenhagen | Engine has switching valves next to lubricant outlets with which supply lines can be blocked or opened at times determined by controller from lubricant demand derived from measurements |
| JP4508046B2 (en) * | 2005-09-02 | 2010-07-21 | トヨタ自動車株式会社 | Lubricating device for internal combustion engine |
| JP2007224760A (en) * | 2006-02-21 | 2007-09-06 | Toyota Motor Corp | Cylinder lubricating device |
| JP2008095562A (en) * | 2006-10-06 | 2008-04-24 | Toyota Motor Corp | Engine oil degradation determining device |
-
2009
- 2009-09-04 EP EP09169465A patent/EP2175107A1/en not_active Withdrawn
- 2009-09-29 CN CN200910204714.3A patent/CN101718214B/en not_active Expired - Fee Related
- 2009-10-07 JP JP2009232968A patent/JP2010090897A/en active Pending
- 2009-10-07 KR KR1020090095010A patent/KR20100039813A/en active Application Filing
-
2016
- 2016-02-04 KR KR1020160014135A patent/KR20160021170A/en not_active Application Discontinuation
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19902928C1 (en) * | 1999-01-26 | 2000-08-24 | Daimler Chrysler Ag | Lubrication system for piston group of internal combustion engine, with closed circuit including device for wetting cylinder surface |
| EP1696021A2 (en) * | 2004-12-30 | 2006-08-30 | A.P. Moller - Maersk A/S | Method and system for improving fuel economy and environmental impact operating a 2-stroke engine |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2175107A1 (en) | 2010-04-14 |
| CN101718214A (en) | 2010-06-02 |
| KR20160021170A (en) | 2016-02-24 |
| KR20100039813A (en) | 2010-04-16 |
| JP2010090897A (en) | 2010-04-22 |
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