CN108368757A - Oil circuit with filter, in particular for a marine engine - Google Patents
Oil circuit with filter, in particular for a marine engine Download PDFInfo
- Publication number
- CN108368757A CN108368757A CN201680066553.4A CN201680066553A CN108368757A CN 108368757 A CN108368757 A CN 108368757A CN 201680066553 A CN201680066553 A CN 201680066553A CN 108368757 A CN108368757 A CN 108368757A
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- China
- Prior art keywords
- oil
- filter
- cleaning
- backwash
- line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- F01M1/10—Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters
-
- 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
- F01M1/10—Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters
- F01M2001/1007—Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters characterised by the purification means combined with other functions
- F01M2001/1021—Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters characterised by the purification means combined with other functions comprising self cleaning systems
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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
- F01M1/10—Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters
- F01M2001/105—Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters characterised by the layout of the purification arrangements
- F01M2001/1057—Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters characterised by the layout of the purification arrangements comprising a plurality of filters, parallel or serial
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Filtration Of Liquid (AREA)
Abstract
The present invention relates to an oil circuit for an engine, preferably a marine engine, comprising an oil sump 2 and at least one supply circuit 20, which can be supplied with oil from the oil sump 2, which has at least one oil consumer and has a path back into the oil sump 2, and which has a main pump 3 and a plurality of filters. One of the filters is a simple filter 25 with a filter area 26 and the other is a self-cleaning backflush filter 11 with a backflushable filter area (13), the backflush filter 11 having an inlet 12, a clean oil outlet 14 and a backflush outlet 15, the backflush outlet 15 leading to a line branch 24 containing at least one device for treating the washing oil. In order to create an oil circuit which is simple in construction, is based on low-cost basic concepts and also enables the quality of the oil circulating in the supply circuit to be continuously improved, according to the invention the inlet 12 of the backflushing filter can be supplied with oil by the main pump, selectively via the first line section 22 or the second line section 21, depending on the switching state of the at least one switching valve 23, wherein a simple filter is provided in the second line section 21.
Description
Technical field
The present invention relates to for engine, the oil circuit of particularly reciprocating-piston engine, preferably marine engine, it is special
It is not used in embodiments as the oil circuit of diesel engine, including oil groove and at least one supply loop, supply loop
It can be supplied with the oil for coming from oil groove, supply loop has at least one oil consumption unit and returns in oil groove, and supplies
Answer circuit that there is main pump and multiple filters, at least one of the multiple filter is the simple filtration for having filtration zone
Device, and also one be with can backwash filter region self-cleaning backwash filter, wherein backwash filter
Utensil has entrance, cleaning oil export and backwash outlet, and wherein backwash outlet is led to comprising for handling cleaning oil
The line branches of at least one device.
Background technology
The oil circuit of known general-purpose type from 196 19 843 C2 of DE.There are two supply for setting in the oil circuit of universal class
Circuit is answered, that is, being used for the to be supplied of oil site has a supply loop of lubricating oil and for the to be supplied of hydraulic power unit
There is another supply loop of hydraulic oil.Lead to the supply loop of the hydraulic power unit branch from the supply loop containing lubricating oil
Out and with the self-cleaning filter of itself is belonged to, wherein for generated fluid (greasy filth) during automatically cleaning
The separator formed by pulse centrifuge is led in outlet.It is connected with pump again in the upstream end close to pulse centrifuge, so as to reality
The appropriate high rotating speed of existing centrifuge, and thus realize the advantageous separation of solid constituent and oil.It is carried for lubricating oil and hydraulic oil
For mutually independent supply loop, particularly marine engine construction in, presented its value, wherein oil similarly from
It extracts out in common reservoir (oil groove) and is filtered with different precision for corresponding application.
Invention content
The purpose of the present invention is to provide a kind of oil circuits equipped with filter, are particularly used for the oil of marine engine
Road, the oil path structure is simple, its basic conception is at low cost, and in view of the economic operation pattern of used filter, the oil
Road makes the quality of the oil recycled in supply loop obtain continuing improvement.
For this purpose, according to the first aspect of the invention, it is proposed that the entrance of backwash filter, according at least one switching valve
Switching state, selectively can supply oil by main pump via the first line segments or the second line segments, wherein second
Simple filter is provided in line segments.Therefore, which aims at the flow direction quilt via two different line segments
Be designed as the self-cleaning filter of backwash filter into becoming a mandarin, wherein in a line segments, simple filter, i.e. simultaneously
Non- self-cleaning, the filter that particularly can not backwash, be connected to the upstream of backwash filter.Particularly peculiar to vessel
The startup stage of engine, in initial operating time or after marine engine thorough overhaul, which is connected to
Backwash filter into becoming a mandarin or the upstream of entrance, arise directly from all pipelines point to be extracted in the run time
Branch thus also come from most of impurity in the oil of oil groove.Only after sufficiently long startup stage, just it is switched to another
Line segments, the wherein switching again so that simple filter, its is existing anyway, can be used in other application now, this
It will be a little further detailed with reference to dependent claims.
According to particularly preferred embodiment, the line branches for cleaning oil can be assigned the oily oil pump of cleaning and be located at
The simple filter in the oily oil pump downstream of cleaning, the filter outlet of the simple filter, preferably by being positioned at the filtering
Shutdown component between device outlet and the entrance of backwash filter, the entrance for leading to backwash filter.The simple filtration
Device is at this preferably just by the simple mistake of that into becoming a mandarin positioned at backwash filter during above-mentioned startup stage
Filter is constituted.By the way that pump is arranged in the line branches for cleaning oil, even if can if backwashed fluid during startup stage
With in this case from being fed in backwash filter in the line segments for being provided with simple filter.Although using recoil
Filter is washed, the overall volume flow in supply loop after backwash filter is also therefore again for described in be supplied
Unit, particularly hydraulic power unit use, thus allow simultaneously main pump for the tapped oil from oil groove equipped with compared with
Low power or with lower Power operation.Particularly, for the maintenance purpose about the oily oil pump of cleaning, for cleaning oil
In line branches, setting shutdown component is advantageous between the oily oil pump of cleaning and filter access port.Alternatively or additionally,
Pressure indicator can also be set, so as to check the pollution level of simple filter.
In the alternate embodiment of oil circuit, can be provided in the line branches for cleaning oil the oily oil pump of cleaning and
Positioned at centrifuge, special earth pulse centrifuge of the oily oil pump downstream of cleaning, processing for cleaning oil, wherein in centrifuge
Downstream is provided with collecting tank and/or enters the return line in oil groove.According to a kind of design variable, collecting tank can be via feeding
Pipeline and the pump being set in feed line are connected to the entrance of backwash filter.
While abandoning above-mentioned certain advantages, the line branches for cleaning oil can also be assigned the oily oil pump of cleaning with
And the simple filter positioned at cleaning oily oil pump downstream, the filter outlet of the simple filter are preferably directly communicated to oil again
Slot.
In alternative embodiments, it is arranged according to the switching state for the switching valve for being set to backwash filter upstream and combination
Oil, can be selectively fed to simply by main pump by the switching state of the switching member in the line branches for cleaning oil
The filter access port of filter, or will come from and be fed to simple filter for cleaning the cleaning oil of oily line branches
Filter access port.Therefore, in the oil circuit, not in the line branches for cleaning oil, the oily oil pump of setting cleaning, makes
The volume flow that oil must be cleaned cannot be used for supplying the unit for being connected to backwash filter downstream.But in this feelings
Equally be proved to be under condition advantageously, in any event after the completion of startup stage, i.e., engine during normal operation,
All already present simple filter may be incorporated for the follow-up cleaning of cleaning oil anyway, and in this regard, constantly
Improve the quality of the oil recycled between oil groove and consumable unit, wherein during the normal operating of engine, be set to recoil
The switching valve breakdown for washing filter upstream leads to the line segments of simple filter and is switched to another line segments.Particularly,
It is preferably in this embodiment, leads to the pipeline of simple filter in the switching valve breakdown for being set to backwash filter upstream
In the case of part, the filter outlet of simple filter is connected to the return line being connect with oil groove in normal operating.
This similarly, return line can be preferably provided with shutdown component again, when needed, to be for example included in running operation,
Replace the filter inner core in simple filter.
According to the second inventive concept, it is proposed that a kind of oil circuit, wherein the line branches for cleaning oil are assigned cleaning
Oil pump and simple filter positioned at the oily oil pump downstream of cleaning, the filter outlet of the simple filter lead to backwash
The entrance of filter.As described above, such effect may be implemented in the measure, i.e., by whole volume flows of the oil of main pump conveying
All consumable units for being connected to backwash filter downstream use, and thus main pump can be given with lower pumpability,
And the quality of the oil recycled in supply loop simultaneously is also for good and all improved.
Herein similarly, here it is particularly advantageous that particularly when the oil circuit is used for marine engine, particularly large-scale diesel engine
When, the entrance of backwash filter can be selectively via the first line segments according to the switching state of at least one switching valve
Or second line segments by main pump supply oil, wherein being provided with simple filter in the second line segments.Particularly for dimension
Eye protection, for cleaning in the line branches of oil, setting structure can be turned off between the oily oil pump of cleaning and filter access port
Part and/or pressure indicator.
In all embodiments of oil circuit, if the filtration zone of one or more simple filters is more than backwash filter
Device can backwash filter region, and preferably at least 5 times of the filtration zone of backwash filter and/or at most
Be backwash filter can be 15 times of backwash filter region, it is advantageous.Even if simple filter startup stage it
There is a degree of pollution, the simple filter can be continuing with more run times in the case where being changed without again again afterwards
For the processing of cleaning oil, and if simple filter is used purely for the processing of cleaning oil, may be implemented extremely to grow exempts from
Safeguard service life.It is further favourable that mistake of the filtering accuracy of the filtration zone of simple filter than backwash filter
The filtering accuracy for filtering region is thinner, wherein the filtering accuracy of preferably simple filter is the filtering accuracy of backwash filter
2 to 5 times.
By convention, it can be provided in main pump and the oil circuit being set between the switching valve of backwash filter upstream
At least one coarse filter, the filtering accuracy of the coarse filter is than the filtration zone of simple filter and the mistake of backwash filter
The filtering accuracy for filtering region is thicker.
In the preferred application area of oil circuit according to the present invention, engine is made of marine engine, and therein
Backwash filter is for handling the oil as hydraulic oil from oil groove, in this case, accordingly, including backwash
At least one hydraulic power unit as oil consumption unit, preferably multiple hydraulic powers are provided in the supply loop of filter
Unit.Particularly in the oil circuit for marine engine, here it is particularly advantageous that no matter all switching valves and switching member are cut
How change state, backwash filter is in normal operating and in new or the engine by overhauling initial operation time
The upstream of all oil consumption units in supply loop, particularly hydraulic power unit is all connected in interior start-up operation, so as to right
Oil carries out fine filtering.In the oil circuit, as is known, at least the second supply loop can be further set, this second
It is provided in supply loop and is waited for one of oil lubrication or preferably multiple oil sites as oil consumption unit, wherein preferably,
Second supply loop is after main pump, particularly after the coarse filter for being connected to main pump downstream from including backwash filter
The first supply loop in be branched off.
Description of the drawings
The further advantage and embodiment of the present invention is from appended claims and hereafter to according to the present invention for peculiar to vessel
Show in the description of the schematically illustrate property embodiment of the oil circuit of engine, the critical piece part of the embodiment shows in the accompanying drawings
Show to meaning property.In the accompanying drawings：
Fig. 1 shows the startup of the oil circuit in engine in cleaning tubing line branch with pump for marine engine
Flow chart during stage；
Fig. 2 shows flow charts of the Fig. 1 during the normal operating of engine；
Fig. 3 shows oil circuit the opening in engine for not having pump in cleaning tubing line branch for marine engine
Flow chart during the dynamic stage；
Fig. 4 shows flow charts of the Fig. 3 during the normal operating of engine；
Fig. 5 shows the oil circuit with centrifuge in cleaning tubing line branch for marine engine in engine
Flow chart during startup stage；
Fig. 6 shows flow charts of the Fig. 5 during the normal operating of engine；
Fig. 7 is shown in cleaning tubing line branch there is the oil circuit of pump and simple filter to exist for marine engine
Flow chart during the startup stage of engine；And
Fig. 8 shows flow charts of the Fig. 7 during the normal operating of engine.
Specific implementation mode
In fig. 1 and 2, the basis for marine engine 1 (only symbolically showing) is shown by means of flow
The oil circuit 10 of first illustrative embodiment, wherein the food tray of marine engine 1 is as oil groove 2.By means of oil circuit 10, to positioned at
Both on marine engine 1 or for marine engine 1 hydraulic power unit and oil site supply oil, wherein for this
Purpose is respectively arranged with supply loop 20,40.For this purpose, on the one hand the flow chart shows the hydraulic pressure on marine engine 1
On the other hand the supply loop 20 of power unit (not shown in detail) shows the second supply loop 40 for oil site (also
It is not shown).It is on marine engine 1, for example, the profit of the bearing as bent axle, connecting rod, camshaft, rocking arm or valve etc
The supply loop 40 of sliding point (not shown) is typically referred to as the second supply loop 40 in this application, and is used for hydraulic power list
The supply loop 20 of member is typically referred to as the first supply loop.Naturally, it can provide and both be also used for hydraulic pressure for oil site
The other supply loops or line segments of power unit.
In the flow chart of oil circuit 10 shown in, both the first supply loop 20 and the second supply loop 40 are by identical
Food tray supply oil, the food tray are hereinafter simply referred to as oil groove 2, and for this purpose, the oil is taken out by means of main pump 3 from oil groove 2
Go out and is subjected to predetermined pressure.In the flow chart shown, pipeline 5 is provided between engine 1 and main pump 3.However, main pump
It can integrate within the engine.First filter 4 is provided with after main pump 3, which is usually formed main lubricating oil
Filter and pollutant is filtered out from the oil from oil groove 2 by the first filter 4 so that all lubrication oil consumption lists
First oil lubrication that can be to be filtered by means of filter 4.In the flow chart shown, after filter 4, by pipeline and/
Or it is provided with branch point 6 in the pipeline that is formed of hose, for waiting for the oil site of oil lubrication or lubrication oil consumption unit
Supply loop 40 and supply loop 20 for the hydraulic power unit to be supplied with hydraulic oil are from the branch point 6 to detach
Formula arrangement extends.In this case, lubricating oil and hydraulic oil are provided by the identical oil for coming from oil groove 2, wherein for
Oil is not further processed usually in second supply loop 40 of lubricating oil, therefore the supply loop 40 in the flow chart
Only by the dotted line expression back to marine engine 1.
The present invention substantially only relates to the embodiment for the supply loop 20 to hydraulic power unit supply hydraulic fluid.
In this case, the processing of the oil to coming from oil groove 2 is realized mainly by means of self-cleaning automatic filter, the filter
It is referred to generally at backwash filter 11 in this application.Corresponding automatic filter or backwash filter are in the prior art
It is known.Fluid enters here it is oil to be filtered, via entrance 12 in shell, is grasped in the filtering of backwash filter 11
Its filtration zone 13 is passed through in work so that the filtrate that the fluid is filtered consequently as the particular requirement according to manufacturers of engines
Or cleansing oil and the hydraulic power unit on marine engine 1 is fed to via cleaning oil export (filtrate (liquid) 14.Herein
In described application, therefore filtrate/cleansing oil forms the hydraulic power unit for being connected to 11 downstream of backwash filter
Hydraulic oil.Backwash filter 11 can be for example by constituting, such as such as with multiple candle filters for backwashing filter column
Filter column is backwashed described in 0 656 223 Al of EP 0 900 584 Al or EP.In backwash process, each filter
Column again via backwash component be connected on side or on both sides the backwash on backwash filter 11 outlet 15, so as to
The adverse current opposite with filtering direction clears up filtration zone 13, preferably also clears up filtration zone 13 with crossing current.In this case,
Backwash medium be mainly cleansing oil, therefore the cleansing oil be no longer available for being connected to after backwash filter 11 it is backwashed
The unit in 11 downstream of filter uses and reduces the volume flow of filtrate/cleansing oil.Via backwash outlet 15, on filtration zone
Backwash process in dissolved impurity together with backwash medium -- being herein cleansing oil -- from backwash filter 11
It is brought out.The pollution level of entire filtration zone can for example by as pressure indicator 16 pressure gauge and filter enter
Pressure difference between mouthfuls 12 and cleaning oil export 14 and read.The basic structure of this backwash filter is for art technology
It is known for personnel, therefore does not provide the structure of backwash filter and the detailed description of working method herein.
One basic sides of oil circuit according to the present invention reside in the fact that, that is, anti-in supply loop 20 herein
Flush filter 11 is in all operation modes and is permanently attached to the upstream of hydraulic power unit, and therefore it must be true
Protect be fed to hydraulic power unit hydraulic oil have limited by the specification of these power units or the specification of manufacturers of engines
Fixed degree of purity.In the preferred creative embodiment of oil circuit 10, it is not provided for the bypass of backwash filter 11.In root
It, can be via two independent line segments 21,22 to backwash filter in supply loop 20 according to the oil circuit 10 of the present invention
11 entrance 12 supplies the oil stream pressurizeed and conveyed by main pump 3, and the wherein selection of working line part 21 or 22 is via supplying back
The switching valve 23 for being connected to the line segments upstream in road 20 carries out.Switching valve 23 is preferably by having suitable switching structure
The multi-way valve of part is constituted.
In switching position in the flow chart according to Fig. 1, switching valve 23 turns off line segments 22, and line segments 22 are therefore
It is represented by dotted lines, and the oil supply of backwash filter 15 is realized via line segments 21.In this case, according to figure
1 flow chart is preferably used for the startup stage of marine engine 1, thus, for example, for hair peculiar to vessel new or by maintenance
During first 200 hour run times of motivation 1.In the run time, the impurity component in oil is still more, such as source
In the manufacture of each unit of marine engine 1, assembly, startup or maintenance, wherein particularly, which can be to peculiar to vessel
The overall durability of engine 1 impacts.This in order to eliminate in startup stage there may be more impurity component is asked
Topic is equipped with the filter that can not be backwashed in line segments 21, and therefore can not backwash filter referred to as letter by this
Single-filter 25, and the filtering accuracy of the filtration zone 26 of simple filter 25 is preferably the filtering of backwash filter 11
The several times of the filtering accuracy in region 13.Meanwhile the filtration zone 26 of simple filter 25 is preferably backwash filter 11
5 times to 15 times of filtration zone 13, preferably, 6 times to 12 times, to obtain the longer run time of simple filter 25,
Simple filter 25 its do not have self-cleaning function.
In oil circuit 10 according to the present invention, simple filter 25 has simultaneously together with its filtration zone 26 to be filtered from anti-
The backwashed fluid of 15 discharge of backwash outlet on flush filter 11 or the function of cleaning oil.For this purpose, being exported from backwash
15 start, and the line branches 24 for cleaning oil are arranged, which leads to the filter inlet 27 in simple filter 25.
In the illustrative embodiment according to the oil circuit 10 of Fig. 1 and Fig. 2, cleaning oil oil is provided in the line branches 24 for cleaning oil
Pump 28, cleaning oily oil pump 28 makes cleaning oil be subjected to pressure appropriate so that is being in position according to Fig. 1 including switching valve 23
I.e. turn off line segments 22 when inside in the case of, cleaning oil can via filter inlet 27 with from main pump 3 flow out oil one
It rises and flows into simple filter 25.The advantage obtained in this case is to be transported to the body in supply loop 20 by main pump 3
Product flow is still available for hydraulic power unit and makes full use of.Second advantage is that the impurity in cleaning oil does not return in oil circuit,
Will not particularly it enter in oil groove 2 so that the filtration zone of the subsequent processing and simple filter 25 of cleaning oil persistently ensures
The oil quality for the oil for existing and recycling in entire oil circuit 10 is improved.In the flow chart, come from the oil of main pump 3 via cutting
It changes valve 23 and is connected to the pipeline transmission of switching valve 23, and entered in simple filter 25 via filter access port 27A, and
Oil from line branches 24 is transmitted to via filter access port 27 in simple filter 25.Two filter access ports 27,
27A can also be formed for example by the merging of respective lines by single entrance.Then, the oil stream formed by two parts volume flow
The filter medium 26 for flowing through simple filter flows out at filter outlet 33 from simple filter 25, and enters backwashed
In the entrance 12 of filter 11, so as to here for utilizing again.
In Fig. 1 and illustrative embodiment shown in Fig. 2, for clean oil line branches 24 in, pump 28 before and
It is respectively arranged with shutdown component 29 and shutdown component 30 later, shutdown component 29 and shutdown component 30 are by simple switching branch joint
Composition, that can place under repair when needed to pump 28.At the downstream of the shutdown component 30 after being set to pump 28, pressure gauge
It is further installed in line branches 24 as pressure indicator 31, so as to be obtained about simple from pressure indicator 31
The conclusion of the pollution level of filter 25.According to a further remodeling, the line branches 24 for cleaning oil can be arranged
Component 29 is turned off so that replacement is simple with triple valve shown in dotted line 49 just like in Fig. 1 and Fig. 2, and is provided with triple valve 49
Additional outlet be connected to the branch of a circuit 44 of oil groove 2.This preferred remodeling avoids the line branches 24 for cleaning oil
Unexpected shutdown, and if for example pump 28 goes wrong, enabling will cleaning oil back in oil groove 2.
Flow chart in Fig. 2 with to be based only upon distributing to for switching valve 23 according to the difference of the flow chart of Fig. 1 independent
The switching position of line segments 21,22.Flow chart in Fig. 2 corresponds to the normal operating of the oil circuit 10 of marine engine 1.In root
According in the flow chart of Fig. 2, the second line segments 21 are turned off and oil is directly transmitted via the first line segments 22 from main pump 3
Into the entrance 12 of backwash filter 11.Therefore, line segments 21 between switching valve 23 and simple filter 25
Be not used that pipeline 37 is represented by dotted lines in fig. 2 and correspondence is shown, and the pipeline in line segments 22 as working line with reality
Line indicates.Although changing the switching position of switching valve 23, simple filter 25 additionally realizes in processing pipeline branch 24
Cleaning oil and filter out the purpose of the impurity that it is carried secretly in backwash process.As described with reference to Fig. 1, by proper treatment
The filtered oily entrance 12 for being parallel to the oil for being derived directly from main pump 3 and being fed to backwash filter 11 of cleaning.Mainly go out
In maintenance purpose, in oil circuit 10, in the filter outlet 33 and backwash filter of the simple filter 25 of line segments 21
It is provided with another preferably simple shutdown component in pipeline between 11 entrance 12, such as automatically works and avoids mistake
The flap or preferred check-valves of ground switching.
In figs. 3 and 4, the oil circuit 110 slightly changed is shown in corresponding flow chart.Arrangement and preceding description below
Property embodiment is identical, i.e., the switching valve 23 that is connected to 11 upstream of backwash filter, backwash filter 11 have into
Mouthfuls 12, the structure of filtration zone 13, cleaning oil export 14, backwash outlet 15 and pressure indicator 16 and via two solely
Vertical line segments 21,22 make backwash filter 11 work, wherein in the second pipeline portion in the case of supply loop 120
Divide in 21 and be provided with simple filter 125, therefore identical reference numeral is used for these elements in oil circuit 110, and to above
Description carries out reference.However, for clean oil line branches 124 be configured to it is different from foregoing illustrative embodiment because
Pump is not provided in line branches 124.Therefore, only tool there are one shutdown component 129 and has pressure to line branches 124 herein
Indicator 131, but as in foregoing illustrative embodiment, line branches 124 lead to the filtering in simple filter 125
Device entrance 127.This causes simple filter 125 in the startup stage such as indicated with the flow chart in Fig. 3 and according to Fig. 4
Slightly different purposes and function are all had in the normal operating of the characterization of middle flow chart.In startup stage, when switching valve 23
When turning off line segments 22, although oil is primarily based on the correspondence toggle bit of switching valve 23 as in foregoing illustrative embodiment
Setting -- the line segments 21-- that the switching position generates work flow to simple filter 125 via pipeline 137, and simple at this
At filter 125, oil is filtered by means of the filtration zone 126 of simple filter 125, then flows to entering for backwash filter 11
Mouth 12, but in the operational phase, in the illustrated exemplary embodiment, the entire line branches 124 for cleaning oil are borrowed
Help turn off the shutdown of component 129, therefore in flow chart according to fig. 3, is not backwashed in startup stage.Therefore pipeline
Pipeline in branch 124 is accordingly represented by dashed line.(not shown) according to alternate embodiment, if the pipeline point for cleaning oil
Shutdown component in branch is embodied as such as multi-way valve, and in startup stage, cleaning oil is before being fed back to food tray via it
Its line segments is fed to other filters or separator, then may backwash, and otherwise cleaning oil will not filtered
It flows in oil-recovery tank 2 on ground.
On the other hand, it in the normal operating of oil circuit 110 as shown in Figure 4, is backwashed and turns off component 129 and opened
It opens.The switching valve 23 for being connected to 11 upstream of backwash filter turns off line segments 21, and will be derived from via line segments 22
The oil of main pump directly feeds into the entrance 12 of backwash filter.The cleaning oil generated in backwash process is via line branches
Pipeline in 124 transmits and enters in simple filter 125 and by means of simple filter 125 at filter inlet 127
Filtration zone 126 cleaned, which then flows back to via return line 135 in oil groove 2, and return line 135 can be with
It is particularly turned off preferably by means of shutdown component 136 in startup stage according to fig. 3, the impurity in cleaning oil obtains suitably
It removes.Therefore return line 135 only works in the normal operating of oil circuit 110, and therefore in Fig. 4 it is indicated by the solid line simultaneously
And it is represented by dotted lines in figure 3 as unused pipeline.As shown in dotted line in Fig. 3 and Fig. 4, the line branches for cleaning oil
124 can be provided with triple valve 149 to substitute simple shutdown component 129, and be provided with the connection point for leading to return line 135
Branch 145, to which the additional outlet of triple valve 149 is connected to oil groove 2.This preferred remodeling avoids the pipe for cleaning oil
The unexpected shutdown of line, and if there is problem, cleaning oil can be returned in oil groove 2.
In fig. 5 and fig., improved oil circuit 210 is indicated with corresponding flow chart again.Arrangement and foregoing illustrative below
Embodiment is identical, i.e., the switching valve 23 that is connected to 11 upstream of backwash filter, backwash filter 11 there is entrance
12, filtration zone 13, cleaning oil export 14, backwash outlet 15 and pressure indicator 16 structure and via two independences
Line segments 21,22 make backwash filter 11 work, wherein in the case of supply loop 220 in line segments 21
With simple filter 225, therefore identical reference numeral is used for these elements in oil circuit 210 again, and to above description into
Row reference.However, for clean oil line branches 224 be again configured as it is different from both of the aforesaid illustrative embodiment, because
Although after pump 228 is set to the outlet of the backwash on backwash filter 11 15 in line branches 224, the pump
228 are connected to the upstream of centrifuge 251, special earth pulse centrifuge, associated line branches in the case of oil circuit 210
Cleaning oil in 224 is handled by means of centrifuge 251.Line branches 224 herein do not have shutdown component, but make from
The collecting tank 253 for being set to 251 downstream of centrifuge is led in one or more centrifuges outlet of scheming 251, such as with collection
The tray of tank.During the treated startup stage cleaned oily volume flow can be shown in Fig. 5 and according to Fig. 6
Normal operating in, in the case where switching valve 23 correspondingly switches to line segments 22 by means of supply line 254 and other
Pump 255 is fed to backwash filter 11 again, alternatively, having the return line 261 indicated with chain-dotted line according to figure 6
Alternate design variant, treated cleaning oil volume flow directly feed into the oil groove 2 of engine 1.In this variation,
If necessary, it might even be possible to omit collecting tank.By the way that other switching valve is arranged, two kinds of variants shown in fig. 6 can also
It realizes simultaneously.In addition, for for example changeable clack valve or to be the shutdown component of check-valves can particularly set for maintenance purpose
It is placed in all pipelines or in individual pipelines.
Fig. 7 and Fig. 8 shows the dependence diagram for being related to the 4th design variable for oil circuit 310.Arrange below also with
, the switching valve 23 that is connected to 11 upstream of backwash filter, backwash filter 11 foregoing illustrative embodiment is identical, i.e.,
With entrance 12, filtration zone 13, cleaning oil export 14, backwash outlet 15 and pressure indicator 16 structure, Yi Jijing
Backwash filter 11 is set to work by two independent line segments 21 and 22, wherein to be provided in line segments 21 simple
Filter 325, therefore reference also is carried out to above description herein.For leaving backwash filter at backwash outlet 15
It is provided with pump 328 in the line branches 324 of 11 cleaning oil and is connected to the simple filter 377 in 328 downstreams of pump, the filter
With filter outlet 378.It is oily with the 377 processed cleaning of independent additional simple filter, or if Fig. 7 is for starting
It is fed to again by means of being connected to the supply line 354 of filter outlet 378 like that shown in the illustrative embodiment in stage
The entrance of backwash filter 11, wherein in startup stage, backwash filter 11 is set via line segments 21 in pipe
Simple filter 325 in line part 21 and be supplied to；Or as in Fig. 8 as represented by chain-dotted line 376, the cleaning
Oil directly feeds into the food tray 2 of engine 1.Herein similarly, by the way that other switching valves are arranged, two kinds of variants can be in an oil
It is realized simultaneously in road, also, turn off component can particularly be set in all pipelines or individual pipelines for maintenance purpose.
The different filtering accuracies of simple filter and backwash filter can be for example achieved because of following facts, that is, letter
Filtration zone in single-filter includes non-woven fabrics, particularly cellulosic nonwoven fabric, synthesis non-woven fabrics or glass fibre non-woven,
And the filtration zone in backwash filter includes the Woven fabric of such as metal fabric or synthetic textiles.In backwash filter
Filtration zone can also include sintering supatex fabric or edge filter design.The filtration zone of simple filter is preferred
Ground is interchangeable.The filtration zone that the filtration zone relative to backwash filter of simple filter is much bigger may be implemented
Following effect still ensures that longer non-maintaining service life although the filtering of i.e. simple filter is more fine.
To those skilled in the art, can be obtained from foregoing description should fall into scope of the appended claims
Interior a variety of remodeling.Flow chart only shows basic structure, and other line branches or supply loop can be arranged.Especially
Ground, the presence of lubricant oil way and/or its structure are not vital for the present invention.Other lubrications can also be set
Oil circuit, other lubricant oil ways are even not attached to main lubricating oil filter.Although marine engine, particularly big
Type diesel engine belongs to the preferred application area of the present invention, and oil circuit according to the present invention can also be used in other engines.
Cleaning oil is used for clear to be fed to automatic filter or backwash filter, but in the case of being fed to other consumable units
The setting of pump in the line branches of washing oil and cleaning oil is handled and can also provide advantage using filter, wherein using
It pumps the pressure rise of cleaning oil.Such remodeling and other remodeling are intended to fall in scope of the appended claims.
Claims (17)
1. for engine, the oil circuit of particularly reciprocating-piston engine, preferably marine engine, including oil groove (2) and
At least one supply loop (20,40,120), the supply loop can be supplied with the oil from the oil groove (2), the confession
Answer circuit at least one oil consumption unit and with back to the path in the oil groove (2), and the supply loop
With main pump (3) and multiple filters, at least one of the multiple filter is the simple filtration for having filtration zone (26)
Device (25), and there are one filter be with can backwash filter region (13) self-cleaning backwash filter
(11), wherein the backwash filter (11) has entrance (12), cleaning oil export (14) and backwash outlet (15), and
And wherein, the backwash outlet (15) leads to line branches (24,124), and the line branches include for handling cleaning oil
At least one device, which is characterized in that the entrance (12) of the backwash filter can be according at least one switching
The switching state of valve (23) is selectively supplied via the first line segments (22) or the second line segments (21) by the main pump
Oil, wherein be provided with simple filter in second line segments (21).
2. oil circuit according to claim 1, which is characterized in that the line branches (24,324) for cleaning oil are divided
Simple filter (25,377) equipped with the oily oil pump (28,328) of cleaning and positioned at cleaning oily oil pump downstream, wherein institute
The filter outlet (33,378) of stating simple filter (25,377), the institute preferably by being positioned at the simple filter
State the shutdown component (32) between filter outlet and the entrance of the backwash filter, lead to it is described backwashed
The entrance of filter.
3. oil circuit according to claim 2, which is characterized in that for clean oil the line branches (24) in,
It is provided with shutdown component (30) and/or pressure indicator between the oily oil pump (28) of the cleaning and filter access port (27)
(31)。
4. oil circuit according to claim 1, which is characterized in that set in the line branches (224) for cleaning oil
It is equipped with the centrifuge of the oily oil pump (228) of cleaning and the processing for cleaning oil positioned at oily oil pump (228) downstream of the cleaning
(251), special earth pulse centrifuge, wherein be provided with collecting tank (253) at the downstream of the centrifuge (251) and/or enter
Return line (261) in the oil groove.
5. oil circuit according to claim 4, which is characterized in that the collecting tank (253) is via feed line (254) and sets
The pump (255) being placed in the feed line (254) is connected to the entrance of the backwash filter (11).
6. oil circuit according to claim 1, which is characterized in that according to being set to the backwash filter (11) upstream
The switching state of the switching valve (23) is simultaneously incorporated in the switching member being arranged in the line branches for cleaning oil
The switching state of (29,49,129,149), the filter access port (27,27A) energy of the simple filter (25)
It is enough to be selectively fed with the oil for coming from the main pump (3) or be fed with the pipeline point come from for cleaning oil
The cleaning oil of branch (24,124).
7. oil circuit according to claim 6, which is characterized in that cut when being set to described in the backwash filter upstream
Valve (23) shutdown is changed when leading to the line segments (21) of the simple filter, the mistake of the simple filter (24)
Filter outlets (33) are connected to the return line (135) being connect with the oil groove in normal operating.
8. oil circuit according to claim 7, which is characterized in that the return line (135) is assigned shutdown component
(136)。
9. for engine, the oil circuit of particularly reciprocating-piston engine, preferably marine engine, including oil groove and at least
One supply loop (20), the supply loop can be supplied with the oil for coming from the oil groove (2), and the supply loop has
At least one oil consumption unit and back in the oil groove, and the supply loop has main pump (3) and multiple filters,
At least one of the multiple filter is the simple filter (25) for having filtration zone (26), and there are one filters
Be with can backwash filter region (13) self-cleaning backwash filter (11), wherein the backwash filter
(11) there is entrance (12), cleaning oil export (14) and backwash outlet (15), and wherein, the backwash outlet (15) is logical
To line branches (24,324), the line branches include at least one device for handling cleaning oil, which is characterized in that are used
It is assigned the oily oil pump (28,228) of cleaning in the line branches (24,324) of cleaning oil and positioned at cleaning oil oil
Pump the simple filter (25,377) in (28,228) downstream, wherein the filter outlet of the simple filter (25,377)
(33,378) lead to the entrance (12) of the backwash filter (11).
10. oil circuit according to claim 9, which is characterized in that according to the switching state of at least one switching valve (23), institute
State the entrance (12) of backwash filter selectively via the first line segments (22) or the second line segments (21) by
Main pump (3) the supply oil, wherein be provided with simple filter (25) in second line segments (21).
11. oil circuit according to claim 9 or 10, which is characterized in that in the line branches (24) for cleaning oil
In, shutdown component (30) and/or pressure instruction are provided between the oily oil pump (28) of the cleaning and filter access port (27)
Device (31).
12. oil circuit according to any one of the preceding claims, which is characterized in that one or more simple filters
(25) the filtration zone (26) be more than the backwash filter (11) it is described can backwash filter region (13), and
At least 5 times and/or the preferably at most described backwash of the filtration zone (13) of the preferably described backwash filter
The described of filter can be 15 times of backwash filter region (13).
13. oil circuit according to any one of the preceding claims, which is characterized in that the filtering of the simple filter
The filtering accuracy in region (6,20) is thinner than the filtering accuracy of the filtration zone (13) of the backwash filter, wherein
The filtering accuracy of the preferably described simple filter is 2 to 5 times of the filtering accuracy of the backwash filter.
14. oil circuit according to any one of the preceding claims, which is characterized in that in the main pump (3) and be set to institute
It states and is provided at least one coarse filter (4), the coarse filter between the switching valve (23) of backwash filter upstream
Filtering accuracy than the filtration zone of the simple filter and the filtration zone of the backwash filter mistake
It is thicker to filter precision.
15. oil circuit according to any one of the preceding claims, which is characterized in that in the supply loop (20,120)
It is provided at least one, preferably multiple hydraulic power units as oil consumption unit.
16. oil circuit according to any one of the preceding claims, which is characterized in that no matter all switching valves (23) and switching
How is the switching state of component, and the backwash filter (11) is started in normal operating and new or process maintenance
All oil consumption lists being all connected in start-up operation in the initial operation time of machine in the supply loop (20,120)
First, the particularly hydraulic power unit upstream, to carry out fine filtering to oil.
17. oil circuit according to any one of the preceding claims, which is characterized in that at least one second supply loop of setting
(40), it is provided in second supply loop and is waited for one of oil lubrication, preferably multiple lubrications as oil consumption unit
Point, wherein preferably, second supply loop is after the main pump (3), particularly in being connected to the main pump downstream
It is branched off from first supply loop (20,120) including the backwash filter after filter (4).
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE202015106199.4 | 2015-11-16 | ||
| DE202015106199 | 2015-11-16 | ||
| DE202016103007.2 | 2016-06-06 | ||
| DE202016103007.2U DE202016103007U1 (en) | 2015-11-16 | 2016-06-06 | Oil circuit with filters especially for marine engines |
| PCT/IB2016/056902 WO2017085643A1 (en) | 2015-11-16 | 2016-11-16 | Oil circuit with filters, in particular for marine engines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108368757A true CN108368757A (en) | 2018-08-03 |
| CN108368757B CN108368757B (en) | 2021-10-01 |
Family
ID=57536744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680066553.4A Expired - Fee Related CN108368757B (en) | 2015-11-16 | 2016-11-16 | Oil circuit with filter, in particular for a marine engine |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP3377736B1 (en) |
| JP (1) | JP6814803B2 (en) |
| KR (1) | KR20180075680A (en) |
| CN (1) | CN108368757B (en) |
| DE (1) | DE202016103007U1 (en) |
| DK (1) | DK3377736T3 (en) |
| WO (1) | WO2017085643A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109339901A (en) * | 2018-12-12 | 2019-02-15 | 中国北方发动机研究所(天津) | A kind of self-cleaning type oil filter structure |
| CN115264358A (en) * | 2022-08-03 | 2022-11-01 | 华能苏州热电有限责任公司 | Cleaning device for lubricating oil system of gas turbine |
| CN115615701A (en) * | 2022-11-30 | 2023-01-17 | 江苏普瑞亚动力科技有限公司 | Oil return pressure regulating device for diesel engine test |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202016103432U1 (en) * | 2016-06-28 | 2017-06-29 | Boll & Kirch Filterbau Gmbh | Filtration system for oil filtration, in particular for ship aggregates such as marine engines |
| JP6469198B1 (en) * | 2017-10-04 | 2019-02-13 | 神奈川機器工業株式会社 | Filtration device |
| GB2570645A (en) * | 2018-01-24 | 2019-08-07 | Maersk As | Fuel system |
| DE202020105401U1 (en) | 2020-09-21 | 2022-01-07 | Boll & Kirch Filterbau Gesellschaft mit beschränkter Haftung | Filtration system for oil filtration, especially for ship aggregates such as ship engines |
| CN114876606B (en) * | 2022-05-05 | 2023-08-04 | 东风柳州汽车有限公司 | Engine oil filtering system, control method thereof and automobile |
| DE102023003883A1 (en) * | 2023-09-25 | 2025-03-27 | Hydac Process Technology Gmbh | system |
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- 2016-11-16 WO PCT/IB2016/056902 patent/WO2017085643A1/en active Application Filing
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| CN115615701A (en) * | 2022-11-30 | 2023-01-17 | 江苏普瑞亚动力科技有限公司 | Oil return pressure regulating device for diesel engine test |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017085643A1 (en) | 2017-05-26 |
| EP3377736B1 (en) | 2022-01-12 |
| KR20180075680A (en) | 2018-07-04 |
| DK3377736T3 (en) | 2022-04-04 |
| JP6814803B2 (en) | 2021-01-20 |
| JP2019502850A (en) | 2019-01-31 |
| EP3377736A1 (en) | 2018-09-26 |
| CN108368757B (en) | 2021-10-01 |
| DE202016103007U1 (en) | 2016-11-18 |
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