WO2017085643A1 - Circuit d'huile avec filtres, en particulier pour moteurs marins - Google Patents

Circuit d'huile avec filtres, en particulier pour moteurs marins Download PDF

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Publication number
WO2017085643A1
WO2017085643A1 PCT/IB2016/056902 IB2016056902W WO2017085643A1 WO 2017085643 A1 WO2017085643 A1 WO 2017085643A1 IB 2016056902 W IB2016056902 W IB 2016056902W WO 2017085643 A1 WO2017085643 A1 WO 2017085643A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter
oil
backwash
scavenging
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.)
Ceased
Application number
PCT/IB2016/056902
Other languages
English (en)
Inventor
Stefan Schmitz
Michael POSSEKEL
Christian Robert JELLINGGAARD
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Boll and Kirch Filterbau GmbH
Original Assignee
Boll and Kirch Filterbau GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Boll and Kirch Filterbau GmbH filed Critical Boll and Kirch Filterbau GmbH
Priority to KR1020187016700A priority Critical patent/KR20180075680A/ko
Priority to DK16810058.4T priority patent/DK3377736T3/da
Priority to JP2018523798A priority patent/JP6814803B2/ja
Priority to CN201680066553.4A priority patent/CN108368757B/zh
Priority to EP16810058.4A priority patent/EP3377736B1/fr
Publication of WO2017085643A1 publication Critical patent/WO2017085643A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • 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

Definitions

  • the invention relates to an oil circuit for an engine, in particular a reciprocating piston engine, preferably a marine engine, in particular in an embodiment as a diesel engine, comprising an oil sump and at least one supply loop, which is suppliable with oil from the oil sump, has at least one oil-consuming unit and returns back into the oil sump, and which has a main pump and a plurality of filters, of which at least one is a simple filter with filter area and a further filter is a self-cleaning backwash filter with backwashable filter area, wherein the backwash filter has an inlet, a clean oil outlet and a backwash outlet, and wherein the backwash outlet opens out into a line branch containing at least one means for the treatment of the scavenging oil.
  • An oil circuit of the generic type is known from DE 196 19 843 C2.
  • two supply loops are provided, namely one supply loop for lubricating points to be supplied with lubricating oil and a second supply loop for hydraulic power units to be supplied with hydraulic oil.
  • the supply loop leading to the hydraulic power units branches off from the supply loop containing lubricating oil and has an own, self-cleaning filter, wherein the outlet for the fluid generated in the self-cleaning process (oil sludge) opens out into a separating device which is formed by an impulse centrifuge.
  • a pump is connected directly upstream of the impulse centrifuge in order to achieve an appropriately high rotation speed of the centrifuge, and thus an advantageous separation of solid components and oil.
  • the object of the invention is to create an oil circuit equipped with filters, in particular for marine engines, which oil circuit is of simple construction, has a low-cost basic concept, and, given an economic operating mode of the employed filters, enables a continuous
  • the inlet of the backwash filter in dependence on the switching status of at least one switching valve, can be supplied with oil by the main pump, selectively via a first line section or a second line section, wherein in the second line section is arranged a simple filter.
  • This concept hence intends to enable the inflow to the self-cleaning filter, designed as a backwash filter, via two different line sections, wherein in one line section a simple filter, i.e. a filter which is not self-cleaning, in particular not backwashable, is connected upstream of the backwash filter.
  • this line section is connected upstream of the inflow or inlet of the backwash filter in order in this operating time to extract a large part of the impurities in the oil definitively from all line branches, and thus also from the oil sump. Only after a sufficiently lengthy start-up phase is a switch then made to the other line section, wherein this then enables the simple filter, which is anyway present, to now be used for another application, as is further explained with reference to the sub-claims.
  • the line branch for the scavenging oil can be assigned a scavenging oil pump and, downstream of the scavenging oil pump, a simple filter, the filter exit of which, preferably with the interposition of a shut-off member, opens out into the inlet of the backwash filter.
  • This simple filter is here preferably constituted by precisely that simple filter which, during the start-up phase described further above, is located in the inflow of the backwash filter.
  • a shut-off member is arranged between the scavenging oil pump and the filter entrance.
  • a pressure indicator can also be arranged, in order to be able to check the degree of contamination of the simple filter.
  • a centrifuge in particular an impulse centrifuge, can be arranged, wherein downstream of the centrifuge is/are arranged a collecting tank and/or a return line into the oil sump.
  • the collecting tank can be connected to the inlet of the backwash filter via a feed line and a pump disposed in the feed line.
  • the line branch for the scavenging oil could also be assigned a scavenging oil pump and, downstream of the scavenging oil pump, a simple filter, the filter exit of which then preferably opens out directly into the oil sump.
  • oil in dependence on the switching status of the switching valve arranged upstream of the backwash filter and in combination with the switching status of a switching member disposed in the line branch for the scavenging oil, oil can selectively be fed by the main pump, or scavenging oil from the line branch for the scavenging oil, to the filter entrance of the simple filter.
  • no scavenging oil pump is hence then provided in the line branch for the scavenging oil, so that the volumetric flow of the scavenging oil is not available to supply the units connected downstream of the backwash filter.
  • the simple filter which is anyway present, in any event after completion of the start-up phase, i.e.
  • the switching valve arranged upstream of the backwash filter shuts off the line section to the simple filter and switches over to the other line section
  • the filter outlet of the simple filter in normal operation when the switching valve arranged upstream of the backwash filter shuts off the line section to the simple filter, is connected up to a return line to the oil sump.
  • the return line can then preferably be assigned a shut-off member in order to, if need be, exchange a filter insert in the simple filter, for instance, including in running operation.
  • an oil circuit in which the line branch for the scavenging oil is assigned a scavenging oil pump and, downstream of the scavenging oil pump, a simple filter, the filter exit of which opens out into the inlet of the backwash filter is proposed.
  • this measure can achieve the effect that the whole of the volumetric flow of oil which is delivered by the main pump is available to all consuming units connected downstream of the backwash filter, whereby the main pump can be given a lower pumping capacity, and, at the same time, furthermore, the quality of the oil circulating in the supply loops is permanently improved.
  • the inlet of the backwash filter in dependence on the switching status of at least one switching valve, can be supplied with oil by the main pump, selectively via a first line section or a second line section, wherein in the second line section is arranged a simple filter.
  • a shut-off member and/or a pressure indicator can be arranged between the scavenging oil pump and the filter entrance.
  • the filter area of the simple filter or filters is larger than the backwashable filter area of the backwash filter, and preferably is at least 5 times larger than the filter area of the backwash filter and/or maximally 15 times larger than the backwashable filter area of the backwash filter. Even if the simple filter then after the start-up phase has a certain degree of contamination, it can then, without replacement, continue to be used for numerous further operating hours for the scavenging oil treatment and, if used purely in the scavenging oil treatment, extremely long maintenance-free service lives are enabled.
  • the filter fineness of the filter area of the simple filter is finer than the filter fineness of the filter area of the backwash filter, wherein preferably the filter fineness of the simple filter is finer by a factor of 2 to 5 than the filter fineness of the backwash filter.
  • in the oil circuit between the main pump and the switching valve arranged upstream of the backwash filter can be arranged at least one rough filter, the filter fineness of which is coarser than the filter fineness of the filter areas of the simple filter and of the backwash filter.
  • the engine is constituted by a marine engine, and the backwash filter there serves for the treatment of the oil from the oil sump as hydraulic oil, in which case, correspondingly, in the supply loop comprising the backwash filter, there is or are arranged, as oil-consuming units, at least one hydraulic power unit, and preferably a plurality of hydraulic oil power units.
  • the backwash filter irrespective of the switching status of all switching valves and switching members, both in normal operation and in a start-up operation in the first operating hours of a new or reconditioned engine, is connected upstream of all oil-consuming units, in particular hydraulic power units, in the supply loop for the fine filtering of the oil.
  • a second supply loop in which there are arranged as oil-consuming units one, or preferably a plurality of lubricating points to be lubricated with oil, wherein preferably the second supply loop behind the main pump, in particular behind a rough filter connected downstream of the main pump, branches off from the first supply loop comprising the backwash filter.
  • FIG 1 shows a flow chart of an oil circuit for a marine engine with pump in the
  • FIG 2 shows the flow chart from Figure 1 during normal operation of the engine
  • FIG 3 shows a flow chart of an oil circuit for a marine engine without pump in the scavenging oil line branch during a start-up phase of the engine;
  • FIG 4 shows the flow chart from Figure 3 during normal operation of the engine
  • FIG 5 shows a flow chart of an oil circuit for a marine engine with centrifug
  • FIG 6 shows the flow chart from Figure 5 during normal operation of the engine
  • FIG 7 shows a flow chart of an oil circuit for a marine engine with pump and simple filter in the scavenging oil line branch during a start-up phase of the engine; and FIG 8 shows the flow chart from Figure 7 during normal operation of the engine.
  • an oil circuit 10 according to a first illustrative embodiment for a marine engine 1 (indicated only symbolically) with oil pan as the oil sump 2 is represented with the aid of a flow chart.
  • the oil circuit 10 both hydraulic power units and lubricating points on the or for the marine engine 1 are supplied with oil, wherein, for this purpose, mutually separated supply loops 20, 40 are provided.
  • the flow chart shows, on the one hand, a supply loop 20 for hydraulic power units (not represented in detail) on the marine engine 1 and, in addition, a second supply loop 40 for lubricating points (also not
  • the supply loop 40 for the lubricating points (not represented) on the marine engine 1, such as, for instance, the bearings of crankshaft, connecting rod, camshaft, rockers or valves, is representatively referred to within the Application as the second supply loop 40, whereas the supply loop 20 for the hydraulic power units is representatively referred to as the first supply loop.
  • further supply loops or line sections could be provided both for the lubricating points and for the hydraulic power units.
  • both the first supply loop 20 and the second supply loop 40 are supplied with oil from the same oil pan, hereinafter solely referred to as the oil sump 2, which oil, for this purpose, is drawn from the oil sump 2 by means of a main pump 3 and subjected to a predefined pressure.
  • a line 5 In the shown flow chart, between the engine 1 and the main pump 3 is found a line 5.
  • the main pump can also, however, be integrated in the engine. Behind the main pump 3 is arranged a first filter 4, which normally forms the main lubricating oil filter and by which contaminations are filtered out of the oil emanating from the oil sump 2, so that all lubricating oil-consuming units can be lubricated with the oil filtered by means of the filter 4.
  • a branch-off point 6 from which the supply loop 40 for the lubricating points or lubricating oil consuming units to be lubricated with lubricating oil, and the supply loop 20 for the hydraulic power units to be supplied with hydraulic oil, run in separated arrangement.
  • the lubricating oil and the hydraulic oil are in this case provided by means of the same oil from the oil sump 2, wherein, in the second supply loop 40 for the lubricating oil, normally no further treatment of the oil takes place, so that this supply loop 40 is represented in the flow chart solely by a dotted line going back to the marine engine 1.
  • the invention relates substantially only to the embodiment of the supply loop 20 for supplying hydraulic power units with hydraulic oil.
  • the treatment of the oil from the oil sump 2 is in this case realized primarily by means of a self-cleaning automatic filter, referred to generally within the Application as the backwash filter 11.
  • Corresponding automatic filters or backwash filters are known in the prior art.
  • a fluid, here the oil to be filtered passes via an inlet 12 into a housing, in the filtering operation of a backwash filter 11 through its filter area 13, so as then to be fed, as filtrate or clean oil filtered in accordance with the specific requirements of the engine manufacturer, via the clean oil outlet (filtrate outlet) 14 to the hydraulic power units on the marine engine 1.
  • the filtrate/clean oil hence forms the hydraulic oil for the hydraulic power units connected downstream of the backwash filter 11.
  • the backwash filter 11 can be constituted, for instance, by a candle filter having a plurality of backwashable filter candles, as is described, for instance, in EP 0 900 584 Al or EP 0 656 223 Al .
  • individual filter candles are then connected on one side or both sides via backwash members to a backwash outlet 15 on the backwash filter 11, in order to clean off the filter area 13 in counterflow to the filtering direction, and preferably also in crossflow.
  • the backwash medium is in this case mostly the clean oil, which therefore behind the backwash filter 11 is no longer available for the units connected downstream of this and reduces the volumetric flow of filtrate/clean oil.
  • the backwash outlet 15 Via the backwash outlet 15, the impurities dissolved in the backwashing process on the filter area, together with the backwash medium, here therefore the clean oil, are in turn led out of the backwash filter 11.
  • the degree of contamination of the entire filter area can be read off, for instance, with the aid of a manometer as the pressure indicator 16 and the pressure difference between the filter inlet 12 and the clean oil outlet 14.
  • the basic structure of a backwash filter of this kind is known to the person skilled in the art, so that no detailed description of the structure and of the working method of the backwash filter is given here.
  • An aspect which is fundamental to the oil circuit according to the invention lies in the fact that here the backwash filter 11 in the supply loop 20 is in all operating modes and at all times connected upstream of the hydraulic power units and has therefore to ensure that the hydraulic oil fed to the hydraulic power units has that degree of purity which is defined by the specifications of these power units or of the engine manufacturer.
  • a bypass for the backwash filter 11 is not provided.
  • the inlet 12 of the backwash filter 11 can be supplied, via two separate line sections 21, 22, with the oil flow pressurized and delivered by the main pump 3, wherein the selection of the active line section 21 or 22 is made via a switching valve 23, connected upstream of the said line section, in the supply loop 20.
  • the switching valve 23 is preferably constituted by a multi-way valve with suitable switching member.
  • the switching valve 23 shuts off the line section 22, which is therefore represented as a dashed line, and the oil supply to the backwash filter 15 is realized via the line section 21.
  • the flow chart according to FIG 1 is in this case preferably employed in a start-up phase of a marine engine 1, thus, for instance, during the first 200 operating hours of a new or reconditioned marine engine 1. In this operating time, there is still an elevated impurities component in the oil, for example stemming from the manufacture, assembly, start-up or maintenance of the individual units of the marine engine 1, wherein in particular these operating hours can be responsible for the durability of the marine engine 1 as a whole.
  • the filter area 26 of the simple filter 25 is at the same time preferably 5 times to 15 times, preferably 6 times to 12 times larger, than the filter area 13 of the backwash filter 11, in order to obtain a long operating time of the simple filter 25 despite the absence of self-cleaning.
  • the simple filter 25 with its filter area 26 has at the same time the function of filtering the backwash fluid or scavenging oil which exits from the backwash outlet 15 on the backwash filter 11.
  • a line branch 24 for the scavenging oil is provided, which line branch opens out into a filter entrance 27 on the simple filter 25.
  • a scavenging oil pump 28 which subjects the scavenging oil to an appropriate pressure in order that it can flow via the filter inlet 27, including in the position of the switching valve 23 according to FIG 1, i.e.
  • shut-off of the line section 22, together with the oil flowing in from the main pump 3, into the simple filter 25 is one advantage to be gained.
  • One advantage to be gained is in this case that the volumetric flow delivered by the main pump 3 into the supply loop 20 remains fully available to the hydraulic power units.
  • the second advantage is that the impurities in the scavenging oil do not make their way back into the oil circuit, in particular into the oil sump 2, so that the after-treatment of the scavenging oil with the filter area of the simple filter 25 continuously ensures an improvement of the oil quality of the oil which overall is present and circulates in the whole of the oil circuit 10.
  • the oil emanating from the main pump 3 passes via the switching valve 23 and the line connecting hereto, into the simple filter 25 via a filter entrance 27A, whilst the oil from the line branch 24 passes via a filter entrance 27 into the simple filter 25.
  • the two filter entrances 27, 27A could also be formed by an individual entrance, through the merger, for instance, of the respective lines.
  • the oil flow formed by the two partial volumetric flows then passes through the filter medium 26 of the simple filter, out of the simple filter 25 at the filter outlet 33, and into the inlet 12 of the backwash filter 11, so as there to be available again.
  • a manometer Downstream of the shut-off member 30 disposed behind the pump 28, a manometer is further installed as a pressure indicator 31 in the line branch 24, in order to be able to draw from the pressure indicator 31 conclusions regarding the degree of contamination of the simple filter 25.
  • the line branch 24 for the scavenging oil could be provided, as shown in Fig.
  • the flow chart in FIG 2 differs from that according to FIG 1 solely on the basis of the switch position of the switching valve 23 assigned to the separate line sections 21, 22.
  • the flow chart in FIG 2 corresponds to the normal operation of the oil circuit 10 of a marine engine 1.
  • the second line section 21 is shut off and oil passes from the main pump 3, directly via the first line section 22, into the inlet 12 of the backwash filter 11.
  • the inactive line 37, located between the switching valve 23 and the simple filter 25, of the line section 21 is in FIG 2 therefore shown correspondingly in dashed representation, whereas the line in the line section 22, as an active line, is represented with a continuous line.
  • the simple filter 25 additionally fulfils the object of treating the scavenging oil in the line branch 24 and filtering out its impurities entrained in the backwashing.
  • the appropriately treated, filtered scavenging oil is fed to the inlet 12 of the backwash filter 11 parallel to the oil emanating directly from the main pump 3.
  • a further, preferably simple shut-off member 32 such as, for instance, a valve flap, or preferably a non-return valve, which works automatically and avoids wrong switching .
  • FIG 3 and FIG 4 a slightly modified oil circuit 110 is represented in corresponding flow charts.
  • the arrangement of the switching valve 23 connected upstream of the backwash filter 11, the structure of the backwash filter 11 with inlet 12, filter area 13, clean oil outlet 14, backwash outlet 15 and pressure indicator 16, as well as the activation of the backwash filter 11 via two separate line sections 21, 22 with a simple filter 125 in the second line section 21 in the case of the supply loop 120, is exactly the same as in the previous illustrative embodiment, so that the same reference symbols are used for these elements in the oil circuit 110 and reference is made to the above description.
  • the line branch 124 for the scavenging oil is configured other than in the previous illustrative embodiment, since no pump is provided in the line branch 124.
  • the line branch 124 therefore here has only one shut-off member 129, as well as a pressure indicator 131, but, as in the previous illustrative embodiment, opens out into a filter inlet 127 on the simple filter 125.
  • shut-off member in the line branch for the scavenging oil is realized, for instance, as a multi-way valve, and in the start-up phase the scavenging oil is fed via a further line section to a further filter or a separating device, before it is fed back into the oil pan, or else flows back unfiltered into the oil sump 2.
  • a backwash takes place and the shut-off member 129 is open.
  • the switching valve 23 connected upstream of the backwash filter 11 shuts off the line section 21 and feeds the oil emanating from the main pump, via the line section 22, directly to the inlet 12 of the backwash filter.
  • the scavenging oil generated in the backwash passes via the line in the line branch 124 at the filter inlet 127 into the simple filter 125 and is cleaned by means of its filter area 126, before it runs back via a return line 135, which can preferably be shut off by means of a shut-off member 136, in particular for the start-up phase according to FIG 3, appropriately cleaned of the impurities, into the oil sump 2.
  • the return line 135 is hence active only in normal operation of the oil circuit 110, and therefore represented in FIG 4 with a continuous line and represented in FIG 3 as an inactive line with dashed line.
  • the line branch 124 for the scavenging oil could be provided, as shown in Fig. 3 and 4 in dotted lines, with a 3 -way valve 149 instead of a simple shut-off member 129 as well as a connecting branch 145 to return line 135, connecting the additional outlet of the 3-way valve 149 to the oil sump 2.
  • This preferred modification avoids an unintended shut-off of the line for the scavenging oil and enables to return the scavenging oil into the oil sump 2 if problems should occur.
  • FIG 5 and FIG 6 a once again modified oil circuit 210 is represented in corresponding flow charts.
  • the line branch 224 for the scavenging oil is once again configured other than in the two previous illustrative embodiments, since, although in the line branch 224 a pump 228 is provided behind the backwash outlet 15 on the backwash filter 11, this pump 228, in the case of the oil circuit 210, is connected upstream of a centrifuge 251, in particular an impulse centrifuge, by means of which the scavenging oil in the associated line branch 224 is treated.
  • the line branch 224 here has no shut-off member, but rather the centrifuge exit or exits of the centrifuge 251 lead to a collecting tank 253 arranged downstream of the centrifuge 251, such as, for instance, a catch pan with collecting tank.
  • the volumetric flow of treated scavenging oil which volumetric flow can once again be fed to the backwash filter 1 1 by means of a supply line 254 and a further pump 255, both during the start-up phase shown in FIG 5 and in normal operation according to FIG 6, when the switching valve 23 correspondingly switches over to the line section 22, or it is fed, according to an alternative design variant indicated in FIG 6 with the dash-dotted return line 261, directly to the oil sump 2 of the engine 1.
  • shut-off members either e.g. switchable flap valves or non-return valves, could be provided in all or individual lines, in particular for maintenance purposes.
  • FIG 7 and FIG 8 show the associated flow charts relating to a fourth design variant for an oil circuit 310.
  • the arrangement of the switching valve 23 connected upstream of the backwash filter 11, the structure of the backwash filter 11 with inlet 12, filter area 13, clean oil outlet 14, backwash outlet 15 and pressure indicator 16, as well as the activation of the backwash filter 11 via two separate line sections 21 and 22, wherein a simple filter 325 is arranged in the line section 21, is once again exactly the same as in the previous illustrative embodiments, so that reference is here too made to the above description.
  • a pump 328 and a simple filter 377 connected downstream of the pump 328, which filter is having a filter exit 378.
  • the scavenging oil treated with the separate, additional simple filter 377 is either, as indicated in the illustrative embodiment of FIG 7 for the start-up phase, in which the backwash filter 11 is fed via the line section 21 through the simple filter 325 provided in line section 21, by means of a supply line 354 connected up to the filter exit 378, once again fed to the entrance of the backwash filter 11, or, as indicated with the dash-dotted line 376 in FIG 8, it is fed directly to the oil sump 2 of the engine 1.
  • both design variants could be realized simultaneously in one oil circuit, and shut-off members could be provided in all or individual lines, in particular for maintenance purposes.
  • the different filter finenesses in the simple filter and in the backwash filter could, already be achieved for instance, by virtue of the fact that the filter area in the simple filter consists of a non-woven fabric, in particular a cellulose, synthetic or glass fibre non-woven fabric, whereas the filter area in the backwash filter consists of a woven fabric, such as a metal or synthetic fabric.
  • the filter area in the backwash filter could also consist of a sintered non-woven fabric or an edge filter design.
  • the filter area of the simple filter is preferably exchangeable. A considerably larger filter area of the simple filter relative to that of the backwash filter can achieve the effect that, despite the finer filtration in the simple filter, a long, maintenance-free service life is ensured.

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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

L'invention concerne un circuit d'huile destiné à un moteur, de préférence un moteur marin, comportant un carter 2 d'huile et au moins une boucle 20 d'alimentation, qui peut être alimentée en huile à partir du carter 2 d'huile, comprend au moins une unité consommatrice d'huile et dont le parcours revient dans le carter 2 d'huile, et qui est munie d'une pompe principale 3 et d'une pluralité de filtres. Un des filtres est un filtre simple 25 comprenant une zone filtrante 26, et un autre filtre est un filtre autonettoyant 11 avec lavage à contre-courant doté d'une zone filtrante (13) lavable à contre-courant, qui comprend une entrée 12, d'une sortie 14 d'huile propre et d'une sortie 15 de lavage à contre-courant, qui débouche dans une branche 24 de canalisation contenant au moins un moyen pour le traitement de l'huile de récupération. Afin de créer un circuit d'huile de construction simple sur un concept de base économique, qui permet également une amélioration continue de la qualité de l'huile circulant dans la boucle d'alimentation selon l'invention, l'entrée 12 du filtre avec lavage à contre-courant, suivant l'état d'aiguillage d'au moins une vanne 23 d'aiguillage, peut être alimentée en huile par la pompe principale, sélectivement via un premier tronçon 22 de canalisation ou un deuxième tronçon 21 de canalisation, un filtre simple étant disposé dans le deuxième tronçon 21 de canalisation.
PCT/IB2016/056902 2015-11-16 2016-11-16 Circuit d'huile avec filtres, en particulier pour moteurs marins Ceased WO2017085643A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
KR1020187016700A KR20180075680A (ko) 2015-11-16 2016-11-16 특히 선박 엔진을 위한, 필터가 있는 오일 회로
DK16810058.4T DK3377736T3 (en) 2015-11-16 2016-11-16 Oil circuit with filters, in particular for marine engines
JP2018523798A JP6814803B2 (ja) 2015-11-16 2016-11-16 特に船舶用エンジンのための濾過器を有する油回路
CN201680066553.4A CN108368757B (zh) 2015-11-16 2016-11-16 特别用于船用发动机的具有过滤器的油路
EP16810058.4A EP3377736B1 (fr) 2015-11-16 2016-11-16 Circuit d'huile avec filtres, en particulier pour moteurs marins

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE202015106199 2015-11-16
DE202015106199.4 2015-11-16
DE202016103007.2U DE202016103007U1 (de) 2015-11-16 2016-06-06 Ölkreislauf mit Filtern insbesondere für Schiffsmotoren
DE202016103007.2 2016-06-06

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Publication Number Publication Date
WO2017085643A1 true WO2017085643A1 (fr) 2017-05-26

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WO2018002822A1 (fr) * 2016-06-28 2018-01-04 Boll & Kirch Filterbau Gmbh Système de filtration pour filtration d'huile, en particulier pour les machines marines telles que des moteurs de bateaux
WO2019069520A1 (fr) * 2017-10-04 2019-04-11 神奈川機器工業株式会社 Dispositif de filtration
DE202020105401U1 (de) 2020-09-21 2022-01-07 Boll & Kirch Filterbau Gesellschaft mit beschränkter Haftung Filtrationssystem für die Ölfiltration insbesondere für Schiffsaggregate wie Schiffsmotoren
CN114876606A (zh) * 2022-05-05 2022-08-09 东风柳州汽车有限公司 一种机油滤清系统及其控制方法、汽车
US12510046B2 (en) 2018-01-24 2025-12-30 Maersk A/S Fuel system

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CN115264358B (zh) * 2022-08-03 2024-05-10 华能苏州热电有限责任公司 一种燃气轮机润滑油系统清洁装置
CN115615701B (zh) * 2022-11-30 2023-04-18 江苏普瑞亚动力科技有限公司 一种柴油发动机试验用回油调压装置
DE102023003883A1 (de) * 2023-09-25 2025-03-27 Hydac Process Technology Gmbh System

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WO2018002822A1 (fr) * 2016-06-28 2018-01-04 Boll & Kirch Filterbau Gmbh Système de filtration pour filtration d'huile, en particulier pour les machines marines telles que des moteurs de bateaux
WO2019069520A1 (fr) * 2017-10-04 2019-04-11 神奈川機器工業株式会社 Dispositif de filtration
JP2019063762A (ja) * 2017-10-04 2019-04-25 神奈川機器工業株式会社 濾過装置
US12510046B2 (en) 2018-01-24 2025-12-30 Maersk A/S Fuel system
DE202020105401U1 (de) 2020-09-21 2022-01-07 Boll & Kirch Filterbau Gesellschaft mit beschränkter Haftung Filtrationssystem für die Ölfiltration insbesondere für Schiffsaggregate wie Schiffsmotoren
WO2022058975A1 (fr) 2020-09-21 2022-03-24 Boll & Kirch Filterbau Gesellschaft Mit Beschraenkter Haftung Système de filtration pour filtration d'huile, en particulier pour des unités marines telles que des moteurs marins
CN114876606A (zh) * 2022-05-05 2022-08-09 东风柳州汽车有限公司 一种机油滤清系统及其控制方法、汽车
CN114876606B (zh) * 2022-05-05 2023-08-04 东风柳州汽车有限公司 一种机油滤清系统及其控制方法、汽车

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DE202016103007U1 (de) 2016-11-18
DK3377736T3 (en) 2022-04-04
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EP3377736A1 (fr) 2018-09-26
JP6814803B2 (ja) 2021-01-20
JP2019502850A (ja) 2019-01-31
KR20180075680A (ko) 2018-07-04
CN108368757A (zh) 2018-08-03

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