EP2476870A1 - Oil supply device for a combustion engine, in particular for a crankcase of a combustion engine - Google Patents
Oil supply device for a combustion engine, in particular for a crankcase of a combustion engine Download PDFInfo
- Publication number
- EP2476870A1 EP2476870A1 EP11009229A EP11009229A EP2476870A1 EP 2476870 A1 EP2476870 A1 EP 2476870A1 EP 11009229 A EP11009229 A EP 11009229A EP 11009229 A EP11009229 A EP 11009229A EP 2476870 A1 EP2476870 A1 EP 2476870A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- oil
- channel
- oil filter
- switching
- flow
- 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.)
- Granted
Links
- 238000002485 combustion reaction Methods 0.000 title claims description 34
- 238000004891 communication Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 3
- 239000000470 constituent Substances 0.000 claims description 2
- 239000003921 oil Substances 0.000 description 287
- 239000010687 lubricating oil Substances 0.000 description 8
- 238000010276 construction Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000013022 venting Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
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
- F01M11/03—Mounting or connecting of lubricant purifying means relative to the machine or engine; Details of lubricant purifying means
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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
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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
- F01M11/04—Filling or draining lubricant of or from machines or engines
- F01M11/045—Removing lubricant by suction
Definitions
- the invention relates to an oil supply device for an internal combustion engine, in particular for a crankcase of an internal combustion engine, according to the preamble of claim 1.
- oil supply devices for an internal combustion engine, in particular in conjunction with a crankcase of an internal combustion engine, is already generally known from the automotive, industrial or ship engine industry.
- This oil supply device is part of a lubrication system for the internal combustion engine, in which the oil is guided in the lubricating oil circuit.
- an oil pump as a conveyor sucks the oil from an oil sump or an oil sump and conveys the sucked oil via an oil cooler and an oil filter to one or more crankcase-side main channels, from which the oil is then conveyed to the individual lubrication points.
- engine components such as an oil filter unit
- engine-mounted redundantly in a redundant design, thereby allowing an oil filter of an oil filter unit also during engine operation by appropriately switching from one oil filter unit to the other Decommissioning and changing the oil filter unit.
- this is known in connection with switchable double filters in the field of marine engines.
- such a double-filter switchable arrangement is known from US 5,178,237 US 2005/0022756 A1 in which the oil coming from the internal combustion engine is fed via a supply line to a first filter unit, from which the oil then flows back to the engine via a first return line.
- a second filter unit arranged parallel to the first filter unit is switched off by corresponding valves during the operation of the first filter unit. If the second filter unit is now to be put into operation in order, for example, to service the first filter unit or replace the oil filter arranged there, then the valves of the first filter unit are closed and the valves of the second filter unit are opened accordingly.
- this is an internal combustion engine, which is used in conjunction with oil production on oil fields and which is not operated here with conventional fuel but with oil.
- an oil supply device for an internal combustion engine in particular for a crankcase of an internal combustion engine is provided, which has at least one oil reservoir and at least one conveyor, by means of which conveyor ⁇ I is guided from the oil reservoir via at least one flow channel to at least one main oil passage of a crankcase of the internal combustion engine wherein a plurality of oil filter units, for example a plurality of oil filter units each equipped with at least one oil filter, are provided in the flow path of the oil from the oil reservoir to the at least one main oil passage.
- the oil supply means comprises a filter switching means, for example in the manner of a shuttle valve or the like, by means of which filter switching means the oil filter units are selectively switched into the flow path of the oil to the main oil passage that only a part of the oil filter units as at least one active oil filter unit from Oil is flowed through, while the other part of the oil filter units as at least one passive oil filter unit is not flowed through by the oil and can be serviced if necessary.
- a switching unit preferably a single switching unit, which is passive in at least part of those switching positions of the filter switching device in which one part of the oil filter units is active and another part of the oil filter units is connected, a first pressure oil flow path from the oil reservoir to the at least one active oil filter unit releases and further produces a second exhaust or drainage flow path between the at least one passive oil filter unit and a discharge channel, wherein the discharge channel, a discharge device, in particular a suction device , assigned, by means of which the ⁇ I accumulated in the region of the at least one passive oil filter unit can be discharged, in particular sucked.
- an oil filter replacement of the deactivated, passive oil filter unit can also be carried out while the internal combustion engine is running, without the residual oil accumulated in the passive, deactivated oil filter unit having to be drained off the engine for this purpose. Because of the assignment of a discharge device according to the invention, it is possible to simply discharge or suck off this oil accumulated in the switched-off, passive oil filter unit and feed it to the lubricating oil circuit of the internal combustion engine.
- the discharge channel is assigned to the oil reservoir, for example an oil pan or the like, which forms part of a crankcase of the internal combustion engine, so that the oil, which has been drained off via the discharge channel and is sucked back into the oil reservoir, resumes the lubricating oil circuit of the internal combustion engine can be supplied by the oil supply device.
- crankcase is to be understood here explicitly in a comprehensive sense and, for example, can be equated with the term "engine block”.
- a suction device as a discharge device is therefore particularly necessary in order to be able to build up a sufficient pressure potential against unfavorable pressure conditions in the region of the crankcase during the engine or internal combustion engine operation for the discharge of the oil from the passive oil filter unit.
- the suction device can basically be designed in different ways, for example by means of any suitable suction pump.
- the discharge channel designed as a suction channel is assigned an ejector pump device as the suction device, by means of which the ⁇ I accumulated in the region of the at least one passive oil filter unit can be sucked off via the suction channel, wherein the ejector pump device can be acted upon by a partial pressure stream branched off from the pressure oil flow path to produce a suction pressure.
- jet pump arrangement is thus ensured in a particularly simple and functionally integrated manner that a branched off from the pressure oil flow path partial flow from the anyway to be provided motor pressure oil supply in a dual function is simultaneously used as a driving medium for the Ejektorpump worn to, in corresponding switching position of the switching unit, in to suck the at least one passive oil filter unit accumulated residual oil as a suction medium.
- the extraction by means of the ejector pump device can also be ensured in a simple and functionally reliable manner without great additional expenditure on components.
- the ejector pump device can in principle be formed by a permanent ejector pump that is permanently actuated during internal combustion engine operation or, alternatively, can be configured by an ejector pump which can be actuated or switched on by an actuator at defined times.
- the actuating device can in principle be designed and arranged so that a manual operation is possible.
- an actuating device formed by a control device which can be correspondingly activated for actuating the ejector pump device at defined times. This will be discussed in more detail below in connection with a preferred specific embodiment of the switching unit.
- the switching unit itself can basically be designed in different ways. Particularly preferred is a switching unit, the one Adjusting device which is adjustably received in a switch housing of the switching unit, leading to the oil filter units oil filter flow channels open into the switch housing and there in defined switching positions of the actuator either with the drain or suction or with the coming of the conveyor and also communicate in the switch housing opening pressure oil flow channel. It is understood that in principle even more switching positions are possible, as will be explained in more detail below.
- the switching positions just described here relate essentially to those switching positions in which a preferred suction of residual oil from at least one passive, switched-off oil filter unit should be possible by means of the drainage or suction device.
- Other switching positions are of course possible at any time.
- the adjusting device itself can also be designed in different ways, for example by slide switch or the like. However, particularly preferred is the design of the adjusting device in the form of a shift drum, which is rotatably received and stored in a switch housing of the switching unit. By means of such a switching drum, the individual switching-roller-side control channels, as will be discussed in more detail below, can be brought into fluid communication with the correspondingly assigned pressure-oil flow channels or oil-filter flow channels by simple rotational movements.
- the adjusting device in particular a switching drum, in a first switching position of the switching unit connects at least one first oil filter flow channel leading to at least one active oil filter unit by means of a control channel with a pressure oil flow channel, while at least one to at least one passive second oil filter unit guided second oil filter flow channel is flow-connected in this first switching position of the switching unit by means of a control channel with the discharge or suction channel.
- the adjusting device in particular a shift drum, moved to a second switching position, in which now at least one active second oil filter unit and passive at least a first oil filter unit, the at least one second active to the second oil filter unit Oil filter flow channel is flow-connected by means of a control channel with a pressure oil flow channel, while the at least one guided to the at least one passive first oil filter unit first oil filter flow channel by means of a control channel to the drain and suction channel is flow-connected.
- control channels of an adjusting device in particular a shift drum, a different flow control is possible in a simple manner only by switching or displacing the adjusting device without the need for this component-consuming valves or the like.
- the configuration of the adjusting device as a shift drum is particularly preferred.
- a control device having a plurality of control channels and being designed as a shift drum, it can have two control channels which are arranged in the first switching position such that a first control channel connects the pressure oil flow channel to the first oil filter flow channel a second control passage connects the second oil filter flow passage to the drain passage.
- these control channels are then preferably arranged so that the first control channel connects the first oil filter flow channel with the discharge channel, while the second control channel connects the second oil filter flow channel with the pressure oil flow channel.
- the suction device formed by Ejektorpump pain is preferably arranged in the switch housing and is switch housing side with the at least partially constituent of the switching housing forming suction in flow communication, in particular such that a nozzle of the Ejektorpump Vintage protrudes into the suction.
- a branch channel diverges from a flow channel forming the pressure oil flow path, in particular from a flow channel or flow channel section of the pressure oil flow path led to the switching unit, into the ejector pump device, preferably in the region of one Nozzle of Ejektorpump issued, opens.
- the pressure oil supply for the ejector pump means can be ensured in a functionally reliable manner.
- the branch channel extends at least partially in the switch housing, whereby the function integration in connection with the switching unit can be further increased and this switching unit can be installed as easy to be manufactured module component.
- the branch channel can also be designed separately and independently of the switch housing, for example by means of a hose and / or pipe branching off from a pressure oil flow channel.
- a switchable shut-off device in particular a shut-off valve or the like is arranged as a shut-off, which is switchable between a position releasing or occluding the flow connection to the ejector.
- the circuit of the shut-off device can basically also be done manually. However, particularly preferred is the circuit by means of a control device as a function of defined shut-off parameters.
- shut-off device is so coupled to the adjusting device, in particular with a shift drum, the switching unit, that it can be brought in defined switching positions of the adjusting device or the shift drum in their flow connection to Ejektorpump adopted releasing or closing position , That is, with such a structure, the actuator is then displaced to the desired position in response to an operation of the switch unit.
- the adjusting device formed in particular by a shift drum can also be designed and / or adjustable so that this adjusting device can be adjusted in internal combustion engine operation in a position in which a part of the oil filter units active and another part of the Oil filter units is switched passively and in which further the suction device, in particular also in an optionally produced flow connection between the at least one oil filter unit and the suction channel, is not activated.
- the adjusting device and thus the switching unit can of course also be designed so that the adjusting device can be displaced into such positions, in which - despite active circuit of a part of the oil filter units and despite passive switching of another part of the oil filter units - not necessarily an extraction is made or provided.
- the suction of a passively connected oil filter unit enabling switching positions of course, other switch positions with active and / or passive connected oil filter units are possible.
- the actuation of the suction device which is in particular formed by an ejector pump device, can of course also take place in a different manner, that is to say independently of the switching position of the switching unit, for example by magnetic and / or electrical switching devices , which can be operated separately and independently of an actuation of the switching unit.
- the adjusting device in particular a switching drum, in particular with regard to their control channels, can be designed and / or arranged such that the adjusting device at standstill of the internal combustion engine and thus also at switched-off conveyor is adjustable in a flow connection between the suction channel and an associated oil filter unit producing position, so that in the respective oil filter unit accumulated oil can flow out of this due to gravity on the drain or suction, in particular can flow through the suction into an oil reservoir of the crankcase ,
- the oil filter units should preferably be arranged in the mounted state geodetically above the switching unit.
- the adjusting device in particular a switching drum, in particular with regard to their control channels, also designed and / or adjustable so that all oil filter units are actively switched and can be flowed through by the oil.
- an embodiment is particularly preferred, in which at least one main oil filter unit is provided, which is connected to other components of the oil supply device or the lubricating oil circuit, such as an oil cooler and / or a blow-by separator and / or an oil pump as a conveyor and / or optionally other integrated in the lubricating oil circuit components, is integrated into a separately installable oil module, while on the other hand, the at least one, a redundancy forming oil filter unit is designed as a separately mountable additional filter unit.
- the invention further relates to a suitable process control for operating an oil supply device for an internal combustion engine, in particular for a crankcase of an internal combustion engine, with one or more features of the oil supply device according to the invention, as they has been described in detail above.
- the applicant expressly reserves the formulation of further method claims for operating such an oil supply device.
- a crankcase 1 of an internal combustion engine which for example has a cylinder block 2 in V-arrangement, in which in the usual way, which is not shown here, cylinder pistons and valves are guided and stored.
- the one in the picture plane the Fig. 1a Lower region of the crankcase 1 here has an oil reservoir 3 forming an oil reservoir, is received in the oil 4, which is supplied by means of an oil supply device 5 according to the invention a lubricating oil circuit not shown here in detail.
- an oil pump 6 oil from the oil pan 3 as a pressure oil via a pressure oil flow channel 8 to a switching unit 7, which will be described in more detail below, promoted or pumped.
- the pressure oil flows through a first control channel 9, which is fluidly connected to an oil filter flow channel 10 leading away from the switching unit 7.
- This oil filter flow channel 10 branches into a first channel section 10a and a second channel section 10b, which are respectively led to an oil filter unit 11, in which the pressure oil flows through an oil filter 12 shown here only extremely schematically, before it via another pressure oil flow channel thirteenth to a here formed, for example, as a shuttle valve 14 filter switching device flows, here the flow of the pressure oil from the pressure oil flow channel 13 via one of the Shuttle valve 14 away leading channel section 15 to a main oil passage 16 releases.
- the oil supply device also comprises two second oil filter units 17, which have an oil filter flow channel 18 and channel sections 18a, 18b branched off from it and lead to one of the second oil filter units 17 with a second control channel 19 the switching unit 7 are in flow communication.
- This second control channel 19 is further in fluid communication with a suction channel 20, which is assigned to the oil pan 3 and opens into this.
- the suction channel 20 is associated with an ejector 21, which, as in particular from Fig. 1b It can be seen that an enlarged view of the switching unit 7 of Fig. 1a shows, with a nozzle 22 in the outgoing from the second control channel 19 suction channel 20 opens.
- the switching unit 7 comprises a here in partial section drawn switch housing 23 in which a control channels 9, 19 having and subsequently described in more detail shift drum 24 is rotatably received.
- the ejector 21 is mounted in this switching housing 23 in the region of the suction channel 20 in a pump recess 25 so that the nozzle 22 of the ejector 21 projects in the manner described above in the switch housing side region of the suction channel 20.
- suction is thus to be understood in a comprehensive sense and includes both the switch housing-side channel portion and the outside of the switching housing 23 extending channel portion, as he, for example, from Fig. 1a is apparent.
- flow channel is also to be understood here in a comprehensive sense and encompasses both free conduits formed, for example, by pipes or hoses, and channels integrated in components or the like.
- Fig. 1b branches off upstream of the switching unit 7, a branch channel 26 from the pressure oil flow channel 8 and is here, either integrally in the switch housing 23 of the switching unit 7 or by means of a separate line outside the switching housing 23 of the switching unit 7 to the ejector 21st guided, so that pressure oil is withdrawn from the pressure oil flow channel 8 in the form of a partial flow in a manner to be described and the ejector 21 can be supplied as a driving medium.
- This branched off from the pressure oil flow channel 8 partial flow of the pressure oil is then through the nozzle 22, which may for example have a nozzle size between 1 to 5 mm (depending on the engine size, the flow rates, etc.), in the downstream of the nozzle 22 subsequent mixing chamber section 27 of the suction channel 20 is injected, where it exerts a suction effect in the second oil filter units 17 flow-connected to the oil filter flow channel 18 and the channel portions 18 a and 18 b via the second control channel 19. This can then in the in the Fig.
- the second oil filter units 17 are here part of a so-called oil module 31, which also includes an oil cooler 32 shown here only schematically and in addition to the oil filter unit 17 and optionally other components of the lubricating oil circuit forming components or components.
- oil modules 31 are then mounted motor-fixed in a conventional manner.
- two oil pump 6 are provided as conveyors, which are each associated with a guided to the switching unit 7 pressure oil flow channel 8a and 8b.
- each oil module 31 is assigned a shuttle valve 14, which is the flow path from Pressure oil flow channel 13 to the two main oil channels (16) unlocks here.
- the ejector 21 also opens again into this suction channel 20 and is acted upon via the here branched off from the pressure oil flow channel 8a branch channel 26 with a partial flow of the pressurized oil, whereby a suction effect on the collected in the second oil filter units 17 residual amounts of oil 28 is applied and this be sucked against the prevailing pressure conditions in the crankcase 1 via the flow channels 18a, 18b and the suction passage 20 and finally introduced into the oil pan 3.
- Fig. 1d is the one in the Fig. 1c shown switching unit 7 in an enlarged embodiment, so that individual details are even better visible.
- the change-over valve 14 forming a filter unit switching device is switched over, the two second oil filter units 17 are actively switched (FIG. Fig. 2a ).
- the two oil filter units 17 flowing through pressure oil are conveyed through the channel section 15 in the main oil passage 16.
- the switching roller 24 of the switching unit 7 in the switch housing 23 is preferably rotated simultaneously with the switching of the shuttle valve 14 so that now the second control channel 19, a flow connection between the pressure oil flow channel.
- the rotation of the shift drum 24 brings the first control channel 9 into flow communication with, on the one hand, the suction channel 20 and, on the other hand, the oil filter flow channel 10, which opens into the first oil filter unit 11 with its two channel sections 10a, 10b.
- a suction effect on a residual oil amount 34 in the two passively connected first oil filter units 11 are applied, whereby this amount of residual oil 34 is conveyed through the channel assembly 10, 10a, 10b, the first control channel 9 and the suction channel 20 in the oil pan 3 ,
- the ejector 21 operates against the prevailing pressure conditions in the crankcase, that is to say that the ejector 21 builds up a pressure potential against unfavorable pressure conditions in the crankcase chamber in order to allow the residual oil quantity 34 to be extracted from the two first oil filter units 11.
- shut-off valve 35 in the region of the branch channel 26, an obturator formed here by way of example by a shut-off valve 35 is provided, by means of which the diversion of pressure oil from the pressure oil flow channel 8 to the ejector 21, depending on Switching position of the shut-off valve 35, can be released or locked.
- the suction of the residual oil quantity depending on the switching position of the shift drum 24, can be effected from the respectively passively connected oil filter units via the ejector 21.
- shut off shut-off valve 35 takes place during operation of the engine against it regularly no outflow of residual oil from the passively connected oil filter units instead, since there is no sufficient suction or suction acts on the residual oil quantities in the passively connected oil filter units.
- shut-off valve 35 To actuate the shut-off valve 35 can be provided that this is manually operated, for example, during ongoing maintenance. Alternatively, however, it may also be provided that the shut-off valve 35 is switched in accordance with control via a control device of the oil supply device 5 in the open position. According to a particularly preferred embodiment, it is provided that the shut-off valve 35 is switched to its open position when the shift drum 24 at a certain shift drum position, as shown in the Fig. 1b and 2 B is shown, at the same time, the shut-off valve 35 is operated to adjust this depending on the switching position of the shift drum 24 between an open and a closed position.
- a shut-off valve 35 in the in the Fig. 3 shown manner can be arranged.
- the switching of the shift drum 24 and thus the switching unit 7 can be carried out separately and independently of an adjustment or circuit of the shuttle valve 14. But here, too, is basically a coupling of the circuit of shuttle valve 14 and switching unit 7 possible.
- a switching unit 7, which is part of the oil supply device 5 according to the embodiment of Fig. 1c is.
- the control channels 9a and 9b respectively displaced by rotation of the shift drum or replaced by such control channels of the shift drum 24, which now produce a flow connection of the pressure oil flow channel 8a with the oil filter flow channel 18a.
- the here the passively connected side associated oil filter flow channels 10 a and 10 b are now flow-connected via a control channel 19 to the suction channel 20.
- the switching unit 7 in particular with regard to their control channels, of course, also be designed so that in defined switching positions one of the pressure oil side associated control channel active is associated with switched oil filter unit, while the passively connected oil filter unit switching roller side seen no control channel is assigned and, accordingly, no flow connection between them and the suction channel is made.
- One Such a structure of a shift drum or such a structure of an arrangement is not shown here, but in principle possible and represents a switching to the above-described positions further switching possibility or possibility of designing the shift drum and thus the switching unit.
- the shift drum 24 may be formed in conjunction with their control channels so that, for example, in a faulty switching all oil filter units are actively connected and are flowed. This case is not explicitly shown here.
- the switch housing 23 itself may be formed in several parts, which is shown there only by way of example by means of a plate 36 and a lid 37.
- the openings of the shift drum 24 are shown here only schematically without running inside the control channels, the different opening sizes to symbolize the various design and circuit variants of the control channels or the shift drum 24.
- the Fig. 3 shown here by way of example hand-operated shut-off valve 35, which can be brought by twisting in the desired position.
- This switching unit 7 can then be installed in a modular manner.
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- Engineering & Computer Science (AREA)
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- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
Description
Die Erfindung betrifft eine Ölversorgungseinrichtung für eine Brennkraftmaschine, insbesondere für ein Kurbelgehäuse einer Brennkraftmaschine, nach dem Oberbegriff des Anspruchs 1.The invention relates to an oil supply device for an internal combustion engine, in particular for a crankcase of an internal combustion engine, according to the preamble of claim 1.
Aus dem Automobil-, Industrie- oder Schiffsmotorenbau ist der Einsatz von Ölversorgungseinrichtungen für eine Brennkraftmaschine, insbesondere in Verbindung mit einem Kurbelgehäuse einer Brennkraftmaschine, bereits allgemein bekannt. Diese Ölversorgungseinrichtung ist Bestandteil eines Schmiersystems für die Brennkraftmaschine, bei dem das ÖI im Schmierölkreislauf geführt wird. Konkret saugt hierbei eine Ölpumpe als Fördereinrichtung das ÖI aus einem Ölsumpf bzw. einer Ölwanne an und fördert das angesaugte ÖI über einen Ölkühler und einen Ölfilter zu einem oder mehreren kurbelgehäuseseitigen Hauptkanälen, von dem ausgehend das ÖI dann zu den einzelnen Schmierstellen gefördert wird. Bei verschiedenen Anwendungen besteht die Forderung, dass betriebswichtige Motorkomponenten, wie zum Beispiel eine Ölfiltereinheit, in redundanter Ausführung motorfest angeordnet werden, wodurch die Möglichkeit besteht, einen Ölfilters einer Ölfiltereinheit auch während des Brennkraftmaschinenbetriebs, durch entsprechendes Umschalten von der einen Ölfiltereinheit auf die andere Ölfiltereinheit außer Betrieb zu nehmen und zu wechseln. Beispielsweise ist dies in Verbindung mit umschaltbaren Doppelfiltern im Bereich der Schiffsmotoren bekannt. Beim Wechseln des Ölfilters der jeweils zu wartenden Ölfiltereinheit wird hierbei regelmäßig das in der Ölfiltereinheit angesammelte Restöl über eine Ablasseinrichtung in Verbindung mit einer Belüftungs-/Entlüftungsschraube motorextern abgelassen und anschließend der Ölfilter der Ölfiltereinheit demontiert und gewechselt.The use of oil supply devices for an internal combustion engine, in particular in conjunction with a crankcase of an internal combustion engine, is already generally known from the automotive, industrial or ship engine industry. This oil supply device is part of a lubrication system for the internal combustion engine, in which the oil is guided in the lubricating oil circuit. In concrete terms, an oil pump as a conveyor sucks the oil from an oil sump or an oil sump and conveys the sucked oil via an oil cooler and an oil filter to one or more crankcase-side main channels, from which the oil is then conveyed to the individual lubrication points. In various applications, there is a requirement that engine components, such as an oil filter unit, be engine-mounted redundantly in a redundant design, thereby allowing an oil filter of an oil filter unit also during engine operation by appropriately switching from one oil filter unit to the other Decommissioning and changing the oil filter unit. For example, this is known in connection with switchable double filters in the field of marine engines. When changing the oil filter of the respective to be serviced oil filter unit here the accumulated in the oil filter unit residual oil is drained via a venting device in conjunction with a vent / bleed screw motorextern and then disassembled the oil filter of the oil filter unit and changed.
Beispielsweise ist eine derartige umschaltbare Doppelfilteranordnung aus der
Es ist daher Aufgabe der vorliegenden Erfindung, eine Ölversorgungseinrichtung für eine Brennkraftmaschine, insbesondere für ein Kurbelgehäuse einer Brennkraftmaschine, zu schaffen, mittels der das Auswechseln eines Ölfilters einer Ölfiltereinheit im Betrieb der Brennkraftmaschine auf einfache und funktionssichere Weise möglich wird und mittels der das motorexterne Ablassen von Restöl aus einer zu wartenden Ölfiltereinheit möglichst vermieden wird.It is therefore an object of the present invention to provide an oil supply device for an internal combustion engine, in particular for a crankcase of an internal combustion engine, by means of which the replacement of an oil filter an oil filter unit in the operation of the internal combustion engine in a simple and reliable manner is possible and by means of the off-engine exhausting Residual oil from a serviceable oil filter unit is avoided if possible.
Diese Aufgabe wird gelöst mit den Merkmalen des Anspruchs 1. Vorteilhafte Ausgestaltungen hierzu sind Gegenstand der darauf rückbezogenen Unteransprüche.This object is achieved with the features of claim 1. Advantageous embodiments thereof are the subject of the dependent claims.
Gemäß Anspruch 1 ist eine Ölversorgungseinrichtung für eine Brennkraftmaschine, insbesondere für ein Kurbelgehäuse einer Brennkraftmaschine, vorgesehen, das wenigstens ein Ölreservoir und wenigstens eine Fördereinrichtung aufweist, mittels welcher Fördereinrichtung ÖI aus dem Ölreservoir über wenigstens einen Strömungskanal zu wenigstens einem Hauptölkanal eines Kurbelgehäuses der Brennkraftmaschine geführt ist, wobei mehrere Ölfiltereinheiten, zum Beispiel mehrere mit jeweils wenigstens einem Ölfilter bestückte Ölfiltereinheiten, im Strömungsweg des Öls von dem Ölreservoir zu dem wenigstens einen Hauptölkanal vorgesehen sind. Weiter umfasst die Ölversorgungseinrichtung eine Filter-Umschalteinrichtung, zum Beispiel in der Art eines Wechselventils oder dergleichen, mittels welcher Filter-Umschalteinrichtung die Ölfiltereinheiten selektiv so in den Strömungsweg des Öls zum Hauptölkanal einschaltbar sind, dass lediglich ein Teil der Ölfiltereinheiten als wenigstens eine aktive Ölfiltereinheit vom ÖI durchströmt ist, während der andere Teil der Ölfiltereinheiten als wenigstens eine passive Ölfiltereinheit nicht vom ÖI durchströmt ist und gegebenenfalls gewartet werden kann. Erfindungsgemäß wird vorgeschlagen, dass im Strömungsweg von dem Ölreservoir zu den Ölfiltereinheiten eine Schalteinheit, vorzugsweise eine einzige Schalteinheit, vorgesehen ist, die in wenigstens einem Teil derjenigen Schaltstellungen der Filter-Umschalteinrichtung, in denen ein Teil der Ölfiltereinheiten aktiv und ein anderer Teil der Ölfiltereinheiten passiv geschaltet ist, einen ersten Drucköl-Strömungsweg von dem Ölreservoir zu der wenigstens einen aktiven Ölfiltereinheit freigibt und die weiter einen zweiten Ablass- bzw. Absaug-Strömungsweg zwischen der wenigstens einen passiven Ölfiltereinheit und einem Ablasskanal herstellt, wobei dem Ablasskanal eine Ablasseinrichtung, insbesondere eine Absaugeinrichtung, zugeordnet ist, mittels der das im Bereich der wenigstens einen passiven Ölfiltereinheit angesammelte ÖI ablassbar, insbesondere absaugbar ist.According to claim 1, an oil supply device for an internal combustion engine, in particular for a crankcase of an internal combustion engine is provided, which has at least one oil reservoir and at least one conveyor, by means of which conveyor ÖI is guided from the oil reservoir via at least one flow channel to at least one main oil passage of a crankcase of the internal combustion engine wherein a plurality of oil filter units, for example a plurality of oil filter units each equipped with at least one oil filter, are provided in the flow path of the oil from the oil reservoir to the at least one main oil passage. Further, the oil supply means comprises a filter switching means, for example in the manner of a shuttle valve or the like, by means of which filter switching means the oil filter units are selectively switched into the flow path of the oil to the main oil passage that only a part of the oil filter units as at least one active oil filter unit from Oil is flowed through, while the other part of the oil filter units as at least one passive oil filter unit is not flowed through by the oil and can be serviced if necessary. According to the invention, it is proposed that in the flow path from the oil reservoir to the oil filter units, a switching unit, preferably a single switching unit, is provided which is passive in at least part of those switching positions of the filter switching device in which one part of the oil filter units is active and another part of the oil filter units is connected, a first pressure oil flow path from the oil reservoir to the at least one active oil filter unit releases and further produces a second exhaust or drainage flow path between the at least one passive oil filter unit and a discharge channel, wherein the discharge channel, a discharge device, in particular a suction device , assigned, by means of which the ÖI accumulated in the region of the at least one passive oil filter unit can be discharged, in particular sucked.
Mit einem derartigen erfindungsgemäßen Aufbau kann auch bei laufender Brennkraftmaschine ein Ölfilterwechsel der abgeschalteten, passiven Ölfiltereinheit durchgeführt werden, und zwar ohne dass hierfür das in der passiven, abgeschalteten Ölfiltereinheit angesammelte Restöl motorextern abgelassen werden muss. Denn durch die erfindungsgemäße Zuordnung einer Ablasseinrichtung besteht die Möglichkeit, dieses in der abgeschalteten, passiven Ölfiltereinheit angesammelte ÖI einfachst abzulassen bzw. abzusaugen und dem Schmierölkreislauf der Brennkraftmaschine zuzuführen. Hierbei ist bevorzugt vorgesehen, dass der Ablasskanal dem Ölreservoir, zum Beispiel einer Ölwanne oder dergleichen, die Bestandteil eines Kurbelgehäuses der Brennkraftmaschine bildet, zugeordnet ist, so dass das über den Ablasskanal abgelassene, insbesondere abgesaugte ÖI wieder im Ölreservoir aufgenommen und damit dem Schmierölkreislauf der Brennkraftmaschine mittels der Ölversorgungseinrichtung zugeführt werden kann. An dieser Stelle sei erwähnt, dass die Begrifflichkeit "Kurbelgehäuse" hier ausdrücklich in einem umfassenden Sinne zu verstehen ist und beispielsweise auch mit der Begrifflichkeit "Motorblock" gleichgesetzt werden kann.With such a construction according to the invention, an oil filter replacement of the deactivated, passive oil filter unit can also be carried out while the internal combustion engine is running, without the residual oil accumulated in the passive, deactivated oil filter unit having to be drained off the engine for this purpose. Because of the assignment of a discharge device according to the invention, it is possible to simply discharge or suck off this oil accumulated in the switched-off, passive oil filter unit and feed it to the lubricating oil circuit of the internal combustion engine. In this case, it is preferably provided that the discharge channel is assigned to the oil reservoir, for example an oil pan or the like, which forms part of a crankcase of the internal combustion engine, so that the oil, which has been drained off via the discharge channel and is sucked back into the oil reservoir, resumes the lubricating oil circuit of the internal combustion engine can be supplied by the oil supply device. It should be mentioned at this point that the term "crankcase" is to be understood here explicitly in a comprehensive sense and, for example, can be equated with the term "engine block".
Das Vorsehen einer Absaugeinrichtung als Ablasseinrichtung ist insbesondere deshalb erforderlich, um während des Motor- bzw. Brennkraftmaschinenbetriebs für das Ablassen des Öls aus der passiven Ölfiltereinheit ein ausreichendes Druckpotential gegen ungünstige Druckverhältnisse im Bereich des Kurbelgehäuses aufbauen zu können. Die Absaugeinrichtung kann dabei grundsätzlich auf unterschiedliche Weise ausgebildet sein, zum Beispiel mittels jeder geeigneten Absaugpumpe. Besonders bevorzugt ist jedoch eine Ausgestaltung, bei der dem als Absaugkanal ausgebildeten Ablasskanal eine Ejektorpumpeinrichtung als Absaugeinrichtung zugeordnet ist, mittels der das im Bereich der wenigstens einen passiven Ölfiltereinheit angesammelte ÖI über den Absaugkanal absaugbar ist, wobei die Ejektorpumpeinrichtung zur Erzeugung eines Saugdrucks mit einem vom Drucköl-Strömungsweg abgezweigten Drucköl-Teilstrom beaufschlagbar ist. Mit einer derartigen Strahlpumpenanordnung wird somit auf besonders einfache und funktionsintegrierte Weise sichergestellt, dass ein vom Drucköl-Strömungsweg abgezweigter Teilstrom aus der ohnehin vorzusehenden motorischen DruckölVersorgung in einer Doppelfunktion gleichzeitig als Treibmedium für die Ejektorpumpeinrichtung verwendet wird, um, bei entsprechender Schaltstellung der Schalteinheit, das in der wenigstens einen passiven Ölfiltereinheit angesammelte Restöl als Saugmedium abzusaugen. In vorteilhafter Weise kann somit hier innerhalb des Schmierölkreislaufes gleichzeitig auch die Absaugung mittels der Ejektorpumpeinrichtung auf einfache und funktionssichere Weise ohne großen zusätzlichen Bauteilaufwand sichergestellt werden.The provision of a suction device as a discharge device is therefore particularly necessary in order to be able to build up a sufficient pressure potential against unfavorable pressure conditions in the region of the crankcase during the engine or internal combustion engine operation for the discharge of the oil from the passive oil filter unit. The suction device can basically be designed in different ways, for example by means of any suitable suction pump. However, an embodiment is particularly preferred in which the discharge channel designed as a suction channel is assigned an ejector pump device as the suction device, by means of which the ÖI accumulated in the region of the at least one passive oil filter unit can be sucked off via the suction channel, wherein the ejector pump device can be acted upon by a partial pressure stream branched off from the pressure oil flow path to produce a suction pressure. With such a jet pump arrangement is thus ensured in a particularly simple and functionally integrated manner that a branched off from the pressure oil flow path partial flow from the anyway to be provided motor pressure oil supply in a dual function is simultaneously used as a driving medium for the Ejektorpumpeinrichtung to, in corresponding switching position of the switching unit, in to suck the at least one passive oil filter unit accumulated residual oil as a suction medium. Advantageously, therefore, within the lubricating oil circuit at the same time, the extraction by means of the ejector pump device can also be ensured in a simple and functionally reliable manner without great additional expenditure on components.
Die Ejektorpumpeinrichtung kann dabei grundsätzlich durch eine während des Brennkraftmaschinenbetriebs dauerhaft betätigte Permanentejektorpumpe gebildet sein oder aber alternativ durch eine mittels einer Betätigungseinrichtung zu definierten Zeiten betätigbare bzw. zuschaltbare Ejektorpumpe ausgebildet sein. Die Betätigungseinrichtung kann dabei grundsätzlich so ausgebildet und angeordnet sein, dass eine manuelle Betätigung möglich ist. Besonders bevorzugt ist jedoch eine durch eine Steuereinrichtung ausgebildete Betätigungseinrichtung, die zur Betätigung der Ejektorpumpeinrichtung zu definierten Zeiten entsprechend angesteuert werden kann. Hierauf wird nachfolgend noch in Verbindung mit einer bevorzugten konkreten Ausgestaltung der Schalteinheit näher eingegangen.The ejector pump device can in principle be formed by a permanent ejector pump that is permanently actuated during internal combustion engine operation or, alternatively, can be configured by an ejector pump which can be actuated or switched on by an actuator at defined times. The actuating device can in principle be designed and arranged so that a manual operation is possible. However, particularly preferred is an actuating device formed by a control device, which can be correspondingly activated for actuating the ejector pump device at defined times. This will be discussed in more detail below in connection with a preferred specific embodiment of the switching unit.
Die Schalteinheit selbst kann grundsätzlich auf unterschiedliche Art und Weise ausgebildet sein. Besonders bevorzugt ist eine Schalteinheit, die eine Stelleinrichtung aufweist, die in einem Schaltgehäuse der Schalteinheit verstellbar aufgenommen ist, wobei die zu den Ölfiltereinheiten führenden Ölfilter-Strömungskanäle in das Schaltgehäuse münden und dort in definierten Schaltstellungen der Stelleinrichtung entweder mit dem Ablass- bzw. Absaugkanal oder mit dem von der Fördereinrichtung kommenden und ebenfalls in das Schaltgehäuse einmündenden Drucköl-Strömungskanal kommunizieren. Es versteht sich, dass grundsätzlich noch mehr Schaltstellungen möglich sind, wie dies nachfolgend auch noch näher erläutert wird.The switching unit itself can basically be designed in different ways. Particularly preferred is a switching unit, the one Adjusting device which is adjustably received in a switch housing of the switching unit, leading to the oil filter units oil filter flow channels open into the switch housing and there in defined switching positions of the actuator either with the drain or suction or with the coming of the conveyor and also communicate in the switch housing opening pressure oil flow channel. It is understood that in principle even more switching positions are possible, as will be explained in more detail below.
Die hier soeben beschriebenen Schaltstellungen betreffen im Wesentlichen diejenigen Schaltstellungen, bei denen mittels der Ablass- bzw. Absaugeinrichtung eine bevorzugt Absaugung von Restöl aus wenigstens einer passiven, abgeschalteten Ölfiltereinheit möglich sein soll. Weitere Schaltstellungen sind selbstverständlich jederzeit möglich. Die Stelleinrichtung selbst kann ebenfalls auf unterschiedliche Weise ausgebildet sein, zum Beispiel durch Schaltschieber oder dergleichen. Besonders bevorzugt ist jedoch die Ausgestaltung der Stelleinrichtung in Form einer Schaltwalze, die verdrehbar in einem Schaltgehäuse der Schalteinheit aufgenommen und gelagert ist. Mittels einer derartigen Schaltwalze lassen sich durch einfache Drehbewegungen die einzelnen schaltwalzenseitigen Steuerkanäle, wie dies nachfolgend noch näher erörtert wird, mit den entsprechend zugeordneten Drucköl-Strömungskanälen bzw. Ölfilter-Strömungskanälen in Strömungsverbindung setzen.The switching positions just described here relate essentially to those switching positions in which a preferred suction of residual oil from at least one passive, switched-off oil filter unit should be possible by means of the drainage or suction device. Other switching positions are of course possible at any time. The adjusting device itself can also be designed in different ways, for example by slide switch or the like. However, particularly preferred is the design of the adjusting device in the form of a shift drum, which is rotatably received and stored in a switch housing of the switching unit. By means of such a switching drum, the individual switching-roller-side control channels, as will be discussed in more detail below, can be brought into fluid communication with the correspondingly assigned pressure-oil flow channels or oil-filter flow channels by simple rotational movements.
Gemäß einer besonders bevorzugten konkreten Ausgestaltung wird vorgeschlagen, dass die Stelleinrichtung, insbesondere eine Schaltwalze, in einer ersten Schaltstellung der Schalteinheit wenigstens einen zu wenigstens einer aktiven, ersten Ölfiltereinheit führenden ersten Ölfilter-Strömungskanal mittels eines Steuerkanals mit einem Drucköl-Strömungskanal verbindet, während wenigstens ein zu wenigstens einer passiven, zweiten Ölfiltereinheit geführter zweiter Ölfilter-Strömungskanal in dieser ersten Schaltstellung der Schalteinheit mittels eines Steuerkanals mit dem Ablass- bzw. Absaugkanal strömungsverbunden ist. Soll nunmehr die wenigstens eine zweite Ölfiltereinheit aktiv geschaltet werden, wird die Stelleinrichtung, insbesondere eine Schaltwalze, in eine zweite Schaltstellung verlagert, in der nunmehr bei aktiver wenigstens einer zweiten Ölfiltereinheit und passiver wenigstens einer ersten Ölfiltereinheit, der wenigstens eine zur aktiven zweiten Ölfiltereinheit geführte zweite Ölfilter-Strömungskanal mittels eines Steuerkanals mit einem Drucköl-Strömungskanal strömungsverbunden ist, während der wenigstens eine zu der wenigstens einen passiven ersten Ölfiltereinheit geführte erste Ölfilter-Strömungskanal mittels eines Steuerkanals mit dem Ablass- bzw. Absaugkanal strömungsverbunden ist. Mit derartigen Steuerkanälen einer Stelleinrichtung, insbesondere einer Schaltwalze, wird auf einfache Weise lediglich durch Umschalten bzw. Verlagern der Stelleinrichtung eine unterschiedliche Strömungsführung möglich, ohne dass hierzu bauteilaufwändige Ventile oder dergleichen eingesetzt werden müssen. Zudem ist eine derartige in einem Schaltgehäuse aufgenommene bzw. gelagerte Stelleinrichtung, insbesondere eine Schaltwalze, sehr funktionssicher zu betätigen und bedienen, wodurch die Druckölförderung zur aktiven Ölfiltereinheit ebenso sichergestellt ist, wie die Ablass- bzw. Absaugmöglichkeit des Restöls von der anderen, passiv geschalteten Ölfiltereinheit.According to a particularly preferred specific embodiment, it is proposed that the adjusting device, in particular a switching drum, in a first switching position of the switching unit connects at least one first oil filter flow channel leading to at least one active oil filter unit by means of a control channel with a pressure oil flow channel, while at least one to at least one passive second oil filter unit guided second oil filter flow channel is flow-connected in this first switching position of the switching unit by means of a control channel with the discharge or suction channel. If now the at least one second oil filter unit to be actively switched, the adjusting device, in particular a shift drum, moved to a second switching position, in which now at least one active second oil filter unit and passive at least a first oil filter unit, the at least one second active to the second oil filter unit Oil filter flow channel is flow-connected by means of a control channel with a pressure oil flow channel, while the at least one guided to the at least one passive first oil filter unit first oil filter flow channel by means of a control channel to the drain and suction channel is flow-connected. With such control channels of an adjusting device, in particular a shift drum, a different flow control is possible in a simple manner only by switching or displacing the adjusting device without the need for this component-consuming valves or the like. In addition, such a recorded in a switch housing or mounted adjusting device, in particular a shift drum, very reliable to operate and operate, whereby the pressure oil supply to the active oil filter unit is also ensured, as the Ablass- or Absaugmöglichkeit the residual oil from the other, passively connected oil filter unit ,
Wie bereits zuvor ausgeführt, ist die Ausgestaltung der Stelleinrichtung als Schaltwalze besonders bevorzugt. In diesem Zusammenhang kann bei einer mehrere Steuerkanäle aufweisenden und als Schaltwalze ausgebildeten Stelleinrichtung weiter vorgesehen sein, dass diese zwei Steuerkanäle aufweist, die in der ersten Schaltstellung so angeordnet sind, dass ein erster Steuerkanal den Drucköl-Strömungskanal mit dem ersten Ölfilter-Strömungskanal verbindet, während ein zweiter Steuerkanal den zweiten Ölfilter-Strömungskanal mit dem Ablasskanal verbindet. In der zweiten Schaltstellung sind diese Steuerkanäle dann bevorzugt so angeordnet, dass der erste Steuerkanal den ersten Ölfilter-Strömungskanal mit dem Ablasskanal verbindet, während der zweite Steuerkanal den zweiten Ölfilter-Strömungskanal mit dem Drucköl-Strömungskanal verbindet. Dadurch ergibt sich ein vorteilhafter Aufbau, bei dem ein Steuerkanal grundsätzlich für unterschiedliche Strömungsverbindungen verwendet werden kann. Es versteht sich, dass selbstverständlich noch mehr als diese zwei Strömungskanäle bzw. Strömungsverbindungsmöglichkeiten im Bereich einer derartigen Schaltwalze vorgesehen sein können, um zum Beispiel andere Strömungsverbindungen darzustellen. In Verbindung mit der erfindungsgemäß vorgesehenen Ablassmöglichkeit einer passiven, abgeschalteten Ölfiltereinheit während des Betriebs der Brennkraftmaschine und somit bei gleichzeitig aktiv geschalteter weiterer Ölfiltereinheit, ergibt sich jedoch mit einem derartigen konkreten Aufbau eine vorteilhafte, einfach und funktionssicher zu realisierende konkrete Ausgestaltung einer Schalteinheit.As already stated above, the configuration of the adjusting device as a shift drum is particularly preferred. In this context, in the case of a control device having a plurality of control channels and being designed as a shift drum, it can have two control channels which are arranged in the first switching position such that a first control channel connects the pressure oil flow channel to the first oil filter flow channel a second control passage connects the second oil filter flow passage to the drain passage. In the second switching position these control channels are then preferably arranged so that the first control channel connects the first oil filter flow channel with the discharge channel, while the second control channel connects the second oil filter flow channel with the pressure oil flow channel. This results in an advantageous construction in which a control channel can basically be used for different flow connections. It goes without saying that, of course, more than these two flow channels or flow connection possibilities can be provided in the region of such a switching drum in order to represent, for example, other flow connections. In connection with the inventively provided drainage possibility of a passive, shut-off oil filter unit during operation of the internal combustion engine and thus simultaneously activated further oil filter unit, however, results with such a concrete structure an advantageous, simple and reliable function to be implemented specific embodiment of a switching unit.
Die durch eine Ejektorpumpeinrichtung ausgebildete Absaugeinrichtung ist bevorzugt in dem Schaltgehäuse angeordnet und steht schaltgehäuseseitig mit dem wenigstens bereichsweise Bestandteil des Schaltgehäuses bildenden Absaugkanal in Strömungsverbindung, insbesondere dergestalt, dass eine Düse der Ejektorpumpeinrichtung in den Absaugkanal einragt.The suction device formed by Ejektorpumpeinrichtung is preferably arranged in the switch housing and is switch housing side with the at least partially constituent of the switching housing forming suction in flow communication, in particular such that a nozzle of the Ejektorpumpeinrichtung protrudes into the suction.
Gemäß einer weiteren besonders bevorzugten Ausgestaltung ist vorgesehen, dass von einem dem Drucköl-Strömungsweg bildenden Strömungskanal, insbesondere von einem von der Fördereinrichtung zu der Schalteinheit geführten Strömungskanal oder Strömungskanalabschnitt des Drucköl-Strömungsweges, ein Abzweigkanal abzweigt, der in die Ejektorpumpeinrichtung, vorzugsweise im Bereich einer Düse der Ejektorpumpeinrichtung, einmündet. Mit einem derartigen Aufbau lässt sich die Druckölversorgung für die Ejektorpumpeinrichtung auf funktionssichere Art und Weise sicherstellen. Besonders bevorzugt ist dabei ein Aufbau, bei dem der Abzweigkanal wenigstens bereichsweise im Schaltgehäuse verläuft, wodurch die Funktionsintegration in Verbindung mit der Schalteinheit noch weiter erhöht werden kann und diese Schalteinheit als einfach zu fertigendes Modulbauteil verbaut werden kann. Der Abzweigkanal kann jedoch gegebenenfalls auch separat und unabhängig vom Schaltgehäuse ausgebildet sein, zum Beispiel durch eine von einem Drucköl-Strömungskanal abzweigende Schlauch- und/oder Rohrleitung.According to a further particularly preferred embodiment, it is provided that a branch channel diverges from a flow channel forming the pressure oil flow path, in particular from a flow channel or flow channel section of the pressure oil flow path led to the switching unit, into the ejector pump device, preferably in the region of one Nozzle of Ejektorpumpeinrichtung, opens. With such a construction, the pressure oil supply for the ejector pump means can be ensured in a functionally reliable manner. Particularly preferred is a structure in which the branch channel extends at least partially in the switch housing, whereby the function integration in connection with the switching unit can be further increased and this switching unit can be installed as easy to be manufactured module component. However, if necessary, the branch channel can also be designed separately and independently of the switch housing, for example by means of a hose and / or pipe branching off from a pressure oil flow channel.
Weiter ist bevorzugt vorgesehen, dass im Bereich des Abzweigkanals eine schaltbare Absperrvorrichtung, insbesondere ein Absperrventil oder dergleichen als Absperrorgan, angeordnet ist, das zwischen einer die Strömungsverbindung zur Ejektorpumpeinrichtung freigebenden oder verschließenden Stellung schaltbar ist. Die Schaltung der Absperrvorrichtung kann dabei grundsätzlich auch manuell vorgenommen werden. Besonders bevorzugt ist jedoch die Schaltung mittels einer Steuereinrichtung in Abhängigkeit von definierten Absperrparametern.Further, it is preferably provided that in the region of the branch channel, a switchable shut-off device, in particular a shut-off valve or the like is arranged as a shut-off, which is switchable between a position releasing or occluding the flow connection to the ejector. The circuit of the shut-off device can basically also be done manually. However, particularly preferred is the circuit by means of a control device as a function of defined shut-off parameters.
Besonders bevorzugt ist weiter eine erfindungsgemäße Ausgestaltung, bei der die Absperrvorrichtung so mit der Stelleinrichtung, insbesondere mit einer Schaltwalze, der Schalteinheit gekoppelt ist, dass diese bei definierten Schaltstellungen der Stelleinrichtung bzw. der Schaltwalze in ihre die Strömungsverbindung zur Ejektorpumpeinrichtung freigebende oder verschließende Stellung bringbar ist. Das heißt, dass mit einem derartigen Aufbau dann die Stelleinrichtung in Abhängigkeit von einer Betätigung der Schalteinheit in die gewünschte Stellung verlagert wird. Durch diese Ankopplung der Absperrvorrichtung an die Stelleinrichtung der Schalteinheit wird somit auf einfache Weise sichergestellt, dass sich die Absperrvorrichtung, bei einer definierten Schaltposition der Stelleinrichtung, in der gewünschten die Strömungsverbindung zur Ejektorpumpeinrichtung freigebenden oder verschließenden Stellung befindet. In diesem Zusammenhang soll ausdrücklich erwähnt werden, dass die insbesondere durch eine Schaltwalze gebildete Stelleinrichtung ferner so ausgebildet und/oder verstellbar sein kann, dass diese Stelleinrichtung im Brennkraftmaschinenbetrieb in eine Stellung verstellt werden kann, bei der ein Teil der Ölfiltereinheiten aktiv und ein anderer Teil der Ölfiltereinheiten passiv geschaltet ist und bei der weiter die Absaugeinrichtung, insbesondere auch bei einer gegebenenfalls hergestellten Strömungsverbindung zwischen der wenigstens einen Ölfiltereinheit und dem Absaugkanal, nicht aktiviert ist. Mit anderen Worten bedeutet dies, dass die Stelleinrichtung und damit die Schalteinheit selbstverständlich auch so ausgebildet sein kann, dass die Stelleinrichtung auch in solche Stellungen verlagert werden kann, bei denen - trotz Aktivschaltung eines Teils der Ölfiltereinheiten und trotz Passivschaltung eines anderen Teils der Ölfiltereinheiten - nicht unbedingt eine Absaugung erfolgt oder vorgesehen ist. Das heißt, dass zusätzlich zu den zuvor beschriebenen, die Absaugung einer passiv geschalteten Ölfiltereinheit ermöglichenden Schaltstellungen selbstverständlich auch andere Schaltstellungen mit aktiv und/oder passiv geschalteten Ölfiltereinheiten möglich sind.Particular preference is further an embodiment of the invention, in which the shut-off device is so coupled to the adjusting device, in particular with a shift drum, the switching unit, that it can be brought in defined switching positions of the adjusting device or the shift drum in their flow connection to Ejektorpumpeinrichtung releasing or closing position , That is, with such a structure, the actuator is then displaced to the desired position in response to an operation of the switch unit. By this coupling of the shut-off device to the adjusting device of the switching unit is thus ensured in a simple manner that the shut-off, at a defined switching position of the adjusting device, in the desired the flow connection to the Ejektorpumpeinrichtung releasing or closing position. In this context, it should be expressly mentioned that the adjusting device formed in particular by a shift drum can also be designed and / or adjustable so that this adjusting device can be adjusted in internal combustion engine operation in a position in which a part of the oil filter units active and another part of the Oil filter units is switched passively and in which further the suction device, in particular also in an optionally produced flow connection between the at least one oil filter unit and the suction channel, is not activated. In other words, this means that the adjusting device and thus the switching unit can of course also be designed so that the adjusting device can be displaced into such positions, in which - despite active circuit of a part of the oil filter units and despite passive switching of another part of the oil filter units - not necessarily an extraction is made or provided. This means that in addition to the previously described, the suction of a passively connected oil filter unit enabling switching positions of course, other switch positions with active and / or passive connected oil filter units are possible.
An dieser Stelle sei ausdrücklich auch erwähnt, dass die Betätigung der Absaugeinrichtung, die insbesondere durch eine Ejektorpumpeinrichtung gebildet ist, selbstverständlich auch auf andere Art und Weise erfolgen kann, das heißt unabhängig von der Schaltstellung der Schalteinheit, zum Beispiel durch magnetische und/oder elektrische Schalteinrichtungen, die separat und unabhängig von einer Betätigung der Schalteinheit betätigt werden können.It should also be expressly mentioned at this point that the actuation of the suction device, which is in particular formed by an ejector pump device, can of course also take place in a different manner, that is to say independently of the switching position of the switching unit, for example by magnetic and / or electrical switching devices , which can be operated separately and independently of an actuation of the switching unit.
In diesem Zusammenhang soll weiter erwähnt werden, dass die Stelleinrichtung, insbesondere eine Schaltwalze, insbesondere im Hinblick auf ihre Steuerkanäle, so ausgebildet und/oder angeordnet sein kann, dass die Stelleinrichtung im Stillstand der Brennkraftmaschine und damit auch bei abgeschalteter Fördereinrichtung in eine eine Strömungsverbindung zwischen dem Absaugkanal und einer zugeordneten Ölfiltereinheit herstellende Stellung verstellbar ist, so dass in der jeweiligen Ölfiltereinheit angesammeltes ÖI aus dieser schwerkraftbedingt über den Ablass- bzw. Absaugkanal abströmen kann, insbesondere über den Absaugkanal in ein Ölreservoir des Kurbelgehäuses abströmen kann. Um ein derartig schwerkraftbedingtes Abströmen zu ermöglichen, sollten die Ölfiltereinheiten im montierten Zustand bevorzugt geodätisch oberhalb der Schalteinheit angeordnet sein.In this context, it should also be mentioned that the adjusting device, in particular a switching drum, in particular with regard to their control channels, can be designed and / or arranged such that the adjusting device at standstill of the internal combustion engine and thus also at switched-off conveyor is adjustable in a flow connection between the suction channel and an associated oil filter unit producing position, so that in the respective oil filter unit accumulated oil can flow out of this due to gravity on the drain or suction, in particular can flow through the suction into an oil reservoir of the crankcase , In order to allow such gravity-related outflow, the oil filter units should preferably be arranged in the mounted state geodetically above the switching unit.
Um zum Beispiel auch bei einer Fehlbedienung des Brennkraftmaschinenbetriebs, bei dem sämtliche Filtereinheiten aktiv geschaltet werden, einen funktionsgemäßen Betrieb sicherzustellen, ist die Stelleinrichtung, insbesondere eine Schaltwalze, insbesondere hinsichtlich ihrer Steuerkanäle, zudem so ausgebildet und/oder verstellbar, dass sämtliche Ölfiltereinheiten aktiv geschaltet und vom ÖI durchströmt werden können.To ensure, for example, even in case of incorrect operation of the engine operation, in which all filter units are activated to ensure proper operation, the adjusting device, in particular a switching drum, in particular with regard to their control channels, also designed and / or adjustable so that all oil filter units are actively switched and can be flowed through by the oil.
Besonders bevorzugt ist des Weiteren eine Ausgestaltung, bei der wenigstens eine Haupt-Ölfiltereinheit vorgesehen ist, die mit weiteren Bauteilen der Ölversorgungseinrichtung bzw. des Schmierölkreislaufes, wie beispielsweise einem Ölkühler und/oder einem Blow-By-Abscheider und/oder einer Ölpumpe als Fördereinrichtung und/oder gegebenenfalls anderer in den Schmierölkreislauf integrierter Komponenten, in ein separat verbaubares Ölmodul integriert ist, während demgegenüber die wenigstens eine, eine Redundanz ausbildende Ölfiltereinheit als separat montierbare Zusatzfiltereinheit ausgebildet ist.Furthermore, an embodiment is particularly preferred, in which at least one main oil filter unit is provided, which is connected to other components of the oil supply device or the lubricating oil circuit, such as an oil cooler and / or a blow-by separator and / or an oil pump as a conveyor and / or optionally other integrated in the lubricating oil circuit components, is integrated into a separately installable oil module, while on the other hand, the at least one, a redundancy forming oil filter unit is designed as a separately mountable additional filter unit.
Die Erfindung betrifft ferner eine geeignete Verfahrensführung zum Betreiben einer Ölversorgungseinrichtung für eine Brennkraftmaschine, insbesondere für ein Kurbelgehäuse einer Brennkraftmaschine, mit einem oder mehreren Merkmalen der erfindungsgemäßen Ölversorgungseinrichtung, wie sie vorstehend ausführlich beschrieben worden ist. Die Formulierung von weiteren Verfahrensansprüchen zum Betreiben einer derartigen Ölversorgungseinrichtung behält sich die Anmelderin ausdrücklich vor.The invention further relates to a suitable process control for operating an oil supply device for an internal combustion engine, in particular for a crankcase of an internal combustion engine, with one or more features of the oil supply device according to the invention, as they has been described in detail above. The applicant expressly reserves the formulation of further method claims for operating such an oil supply device.
Die Erfindung wird nachfolgend anhand einer Zeichnung näher erläutert.The invention will be explained in more detail with reference to a drawing.
Es zeigen:
- Fig. 1 a
- schematisch eine Prinzipdarstellung eines Kurbelgehäuses einer Brennkraftmaschine mit einer erfindungsgemäßen Ölversorgungseinrichtung, die sich in einer Schaltstellung befindet, mittels der Restöl aus einer Ölfiltereinheit abgesaugt und Drucköl über eine weitere Ölfiltereinheit zu einem Hauptölkanal des Kurbelgehäuses gefördert werden kann,
- Fig. 1 b
- schematisch eine vergrößerte Prinzipdarstellung einer Schalteinheit der
Fig. 1b , - Fig. 1c
- schematisch eine der Schaltstellung der
Fig. 1a und 1b entsprechende Ölversorgungseinrichtung mit einer perspektivischen Detaildarstellung der eine Schaltwalze aufweisenden Schalteinheit, - Fig. 1 d
- die Schalteinheit der
Fig. 1c in vergrößerter Detaildarstellung, - Fig. 2a
- eine vom Prinzip her der
Fig. 1a entsprechende Darstellung, jedoch mit einer anderen Schaltstellung der Schalteinheit, - Fig.2b
- eine vergrößerte Darstellung der schematischen Prinzipdarstellung der Schalteinheit der
Fig. 2a ,
- Fig. 2c
- schematisch und perspektivisch eine vergrößerte Detaildarstellung der erfindungsgemäßen Schalteinheit in einer in der
Fig. 2a und Fig. 2b gezeigten Schaltstellung, - Fig. 3
- schematisch eine perspektivische auseinandergezogene Darstellung des Aufbaus der Schalteinheit aus Schaltgehäuse und Schaltwalze.
- Fig. 1 a
- schematically a schematic diagram of a crankcase of an internal combustion engine with an oil supply device according to the invention, which is in a switching position, extracted by means of the residual oil from an oil filter unit and pressure oil can be promoted via a further oil filter unit to a main oil passage of the crankcase,
- Fig. 1 b
- schematically an enlarged schematic diagram of a switching unit of
Fig. 1b . - Fig. 1c
- schematically one of the switching position of
Fig. 1a and 1b corresponding oil supply device with a perspective detail of the switching drum having a switching unit, - Fig. 1 d
- the switching unit of the
Fig. 1c in enlarged detail, - Fig. 2a
- a principle of the
Fig. 1a corresponding representation, but with a different switching position of the switching unit, - 2b
- an enlarged view of the schematic schematic diagram of the switching unit of
Fig. 2a .
- Fig. 2c
- schematically and in perspective an enlarged detail of the switching unit according to the invention in a in the
Fig. 2a and Fig. 2b shown switching position, - Fig. 3
- schematically an exploded perspective view of the structure of the switching unit of switch housing and shift drum.
In der
Mittels einer Ölpumpe 6 wird aus der Ölwanne 3 ÖI als Drucköl über einen Drucköl-Strömungskanal 8 zu einer Schalteinheit 7, die nachfolgend noch näher beschrieben wird, gefördert bzw. gepumpt. In der Schalteinheit 7 durchströmt das Drucköl einen ersten Steuerkanal 9, der mit einem von der Schalteinheit 7 wegführenden Ölfilter-Strömungskanal 10 strömungsverbunden ist. Dieser Ölfilter-Strömungskanal 10 verzweigt sich in einen ersten Kanalabschnitt 10a und einen zweiten Kanalabschnitt 10b, die jeweils zu einer Ölfiltereinheit 11 geführt sind, in der das Drucköl einen hier lediglich äußerst schematisch dargestellten Ölfilter 12 durchströmt, bevor es über einen weiteren Drucköl-Strömungskanal 13 zu einer hier beispielsweise als Wechselventil 14 ausgebildeten Filter-Umschalteinrichtung strömt, die hier die Strömung des Drucköls vom Drucköl-Strömungskanal 13 über einen vom Wechselventil 14 wegführenden Kanalabschnitt 15 zu einem Hauptölkanal 16 freigibt.By means of an
Wie dies der schematischen Darstellung der
Dem Absaugkanal 20 ist eine Ejektorpumpe 21 zugeordnet, die, wie dies insbesondere aus der
An dieser Stelle sei weiterhin ausdrücklich darauf hingewiesen, dass die Begrifflichkeit "Strömungskanal" hier ebenfalls in einem umfassenden Sinne zu verstehen ist und sowohl freie, zum Beispiel durch Rohre oder Schläuche gebildete Leitungen als auch in Bauteile integrierte Kanäle oder dergleichen umfasst.It should also be expressly pointed out at this point that the term "flow channel" is also to be understood here in a comprehensive sense and encompasses both free conduits formed, for example, by pipes or hoses, and channels integrated in components or the like.
Wie dies weiter insbesondere aus der
In der
Nach dem Durchströmen der ersten Ölfiltereinheiten 11 strömt das Drucköl über den Drucköl-Strömungskanal 13 wieder über die Abschnitte 13a, 13b sowie 15a und 15b zu den hier zwei Hauptölkanälen 16, wobei hier beispielhaft jedem Ölmodul 31 ein Wechselventil 14 zugeordnet ist, das den Strömungsweg vom Drucköl-Strömungskanal 13 zu den hier zwei Hauptölkanälen (16) freischaltet.After flowing through the first
Andererseits steht jede der beiden hier mittels des Wechselventils 14 passiv geschalteten zweiten Ölfiltereinheiten 17 über die Strömungskanäle 18a bzw. 18b in Strömungsverbindung mit einem weiteren Steuerkanal 19 der Schaltwalze 24, welcher Steuerkanal 19 mit einem schaltgehäuseseitigen Abschnitt des Absaugkanals 20 in Strömungsverbindung steht. Die Ejektorpumpe 21 mündet auch hier wieder in diesen Absaugkanal 20 ein und wird über den hier vom Drucköl-Strömungskanal 8a abzweigenden Abzweigkanal 26 mit einem Teilstrom des Drucköls beaufschlagt, wodurch eine Sogwirkung auf die im Bereich der zweiten Ölfiltereinheiten 17 gesammelten Restölmengen 28 aufgebracht wird und diese gegen die im Kurbelgehäuse 1 vorherrschenden Druckverhältnisse über die Strömungskanäle 18a, 18b und den Absaugkanal 20 abgesaugt werden und schließlich in die Ölwanne 3 eingebracht werden.On the other hand, each of the two passively connected here by means of the
In der
Wird nunmehr, ausgehend von der beispielhaften Darstellung der
Wie dies insbesondere aus der
Zur Betätigung des Absperrventils 35 kann vorgesehen sein, dass dieses zum Beispiel bei stattfindenden Wartungsarbeiten manuell betätigt wird. Alternativ dazu kann aber auch vorgesehen sein, dass das Absperrventil 35 entsprechend gesteuert über eine Steuereinrichtung der Ölversorgungseinrichtung 5 in die Offenstellung geschaltet wird. Gemäß einer besonders bevorzugten Ausgestaltung ist vorgesehen, dass das Absperrventil 35 in seine Offenstellung geschaltet wird, wenn die Schaltwalze 24 bei einer bestimmten Schaltwalzenposition, wie sie in den
In der
Wie bereits zuvor dargestellt, kann das Umschalten der Schaltwalze 24 und damit der Schalteinheit 7 separat und unabhängig von einer Verstellung bzw. Schaltung des Wechselventils 14 erfolgen. Aber auch hier ist grundsätzlich eine Kopplung der Schaltung von Wechselventil 14 und Schalteinheit 7 möglich.As already shown above, the switching of the
In der
Abgesehen von den hier dargestellten Ausführungsformen, bei denen jeweils das Absaugen einer Restölmenge aus den passiv geschalteten Ölfiltereinheiten ermöglicht ist, kann die Schalteinheit 7, insbesondere hinsichtlich ihrer Steuerkanäle, selbstverständlich zusätzlich auch so ausgebildet sein, dass in definierten Schaltstellungen ein der Druckölseite zugeordneter Steuerkanal einer aktiv geschalteten Ölfiltereinheit zugeordnet ist, während der passiv geschalteten Ölfiltereinheit schaltwalzenseitig gesehen kein Steuerkanal zugeordnet ist und dementsprechend auch keine Strömungsverbindung zwischen diesen und dem Absaugkanal hergestellt ist. Ein derartiger Aufbau einer Schaltwalze bzw. ein derartiger Aufbau einer Anordnung ist hier nicht dargestellt, jedoch grundsätzlich möglich und stellt eine zu den zuvor beschriebenen Schaltstellungen weitere Schaltmöglichkeit bzw. Ausgestaltungsmöglichkeit der Schaltwalze und damit der Schalteinheit dar.Apart from the embodiments shown here, in each of which the suction of a residual amount of oil from the passively connected oil filter units is possible, the
Ebenso kann die Schaltwalze 24 in Verbindung mit ihren Steuerkanälen so ausgebildet sein, dass zum Beispiel bei einer Fehlschaltung sämtliche Ölfiltereinheiten aktiv geschaltet sind und beströmt werden. Auch dieser Fall ist hier nicht explizit dargestellt.Likewise, the
Schließlich gibt es auch die Möglichkeit, im Motorstillstand bei entsprechend geodätisch oberer Anordnung der Ölfiltereinheiten, wie in der
Alle diese Schaltzustände können bzw. sollen mit einer erfindungsgemäßen Ölversorgungseinrichtung darstellbar sein, so dass sich hiermit ein insgesamt funktionsintegrierter einfacher Aufbau einer Ölversorgungseinrichtung ergibt.All of these switching states can or should be representable with an oil supply device according to the invention, so that this results in an overall function-integrated simple construction of an oil supply device.
Wie dies insbesondere noch aus der
- 1.1.
- Kurbelgehäusecrankcase
- 22
- Zylinderblickcylinder view
- 33
- Ölwanneoil pan
- 44
- ÖIoil
- 55
- ÖlversorgungseinrichtungOil supply
- 66
- Ölpumpeoil pump
- 77
- Schalteinheitswitching unit
- 8, 8a, 8b8, 8a, 8b
- Drucköl-StrömungskanalPressure oil flow channel
- 9, 9a, 9b9, 9a, 9b
- Steuerkanalcontrol channel
- 1010
- Ölfilter-StrömungskanalOil filter flow channel
- 10a, 10b, 10c, 10d, 10e10a, 10b, 10c, 10d, 10e
- Kanalabschnittchannel section
- 1111
- ÖlfiltereinheitOil filter unit
- 1212
- Ölfilteroil filter
- 13, 13a, 13b13, 13a, 13b
- Drucköl-StrömungskanalPressure oil flow channel
- 1414
- Wechselventilshuttle valve
- 15, 15a, 15b15, 15a, 15b
- Kanalabschnittchannel section
- 1616
- HauptölkanalMain oil
- 1717
- ÖlfiltereinheitOil filter unit
- 18a, 18b18a, 18b
- Ölfilter-StrömungskanalOil filter flow channel
- 1919
- Steuerkanalcontrol channel
- 2020
- Absaugkanalsuction
- 2121
- Ejektorpumpeejector
- 2222
- Düsejet
- 2323
- Schaltgehäuseswitch housing
- 2424
- Schaltwalzeshift drum
- 2525
- PumpenausnehmungPumpenausnehmung
- 2626
- Abzweigkanalbranch channel
- 2727
- MischkammerabschnittMixing chamber section
- 2828
- RestölmengeResidual oil quantity
- 2929
- ÖlfilterdeckelOil filter cap
- 3030
- Entlüftungs-/BelüftungsschraubeDrain / vent screw
- 3131
- Ölmoduloil module
- 3232
- Ölkühleroil cooler
- 33, 33a, 33b33, 33a, 33b
- Drucköl-StrömungskanalPressure oil flow channel
- 3434
- RestölmengeResidual oil quantity
- 3535
- Absperrventilshut-off valve
- 3636
- Platteplate
- 3737
- Deckelcover
Claims (15)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SI201130965A SI2476870T1 (en) | 2011-01-15 | 2011-11-22 | Oil supply device for a combustion engine, in particular for a crankcase of a combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011008680A DE102011008680A1 (en) | 2011-01-15 | 2011-01-15 | Oil supply device for an internal combustion engine, in particular for a crankcase of an internal combustion engine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2476870A1 true EP2476870A1 (en) | 2012-07-18 |
EP2476870B1 EP2476870B1 (en) | 2016-06-29 |
Family
ID=45062802
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11009229.3A Active EP2476870B1 (en) | 2011-01-15 | 2011-11-22 | Oil supply device for a combustion engine, in particular for a crankcase of a combustion engine |
Country Status (7)
Country | Link |
---|---|
US (1) | US8973550B2 (en) |
EP (1) | EP2476870B1 (en) |
KR (1) | KR101785256B1 (en) |
CN (1) | CN102678223B (en) |
BR (1) | BR102012000924B1 (en) |
DE (1) | DE102011008680A1 (en) |
SI (1) | SI2476870T1 (en) |
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EP2987543A2 (en) | 2014-08-21 | 2016-02-24 | MAN Truck & Bus AG | Method and device for changing a filter, in particular of an oil filter for a combustion engine |
CN112502808A (en) * | 2019-09-16 | 2021-03-16 | 现代自动车株式会社 | Method for controlling oil pump of vehicle |
DE102020126166A1 (en) | 2020-10-07 | 2022-04-07 | Bayerische Motoren Werke Aktiengesellschaft | Method and lubricant conditioning device for use in a machine and motor vehicle |
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US8423182B2 (en) | 2009-03-09 | 2013-04-16 | Intuitive Surgical Operations, Inc. | Adaptable integrated energy control system for electrosurgical tools in robotic surgical systems |
EP4082468A1 (en) | 2012-09-17 | 2022-11-02 | Intuitive Surgical Operations, Inc. | Methods and systems for assigning input devices to teleoperated surgical instrument functions |
US10864048B2 (en) | 2012-11-02 | 2020-12-15 | Intuitive Surgical Operations, Inc. | Flux disambiguation for teleoperated surgical systems |
US10631939B2 (en) | 2012-11-02 | 2020-04-28 | Intuitive Surgical Operations, Inc. | Systems and methods for mapping flux supply paths |
EP2914198B1 (en) * | 2012-11-02 | 2020-06-17 | Intuitive Surgical Operations, Inc. | Flux transmission connectors and systems, flux disambiguation, and systems and methods for mapping flux supply paths |
JP6632734B2 (en) * | 2016-09-27 | 2020-01-22 | 本田技研工業株式会社 | Lubrication structure of internal combustion engine |
DE102022116416A1 (en) | 2022-06-30 | 2022-10-20 | FEV Europe GmbH | oil filter module |
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- 2011-01-15 DE DE102011008680A patent/DE102011008680A1/en not_active Withdrawn
- 2011-11-22 SI SI201130965A patent/SI2476870T1/en unknown
- 2011-11-22 EP EP11009229.3A patent/EP2476870B1/en active Active
-
2012
- 2012-01-13 KR KR1020120004262A patent/KR101785256B1/en active IP Right Grant
- 2012-01-13 BR BR102012000924-2A patent/BR102012000924B1/en active IP Right Grant
- 2012-01-16 CN CN201210028198.5A patent/CN102678223B/en active Active
- 2012-01-17 US US13/351,357 patent/US8973550B2/en active Active
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---|---|---|---|---|
EP2987543A2 (en) | 2014-08-21 | 2016-02-24 | MAN Truck & Bus AG | Method and device for changing a filter, in particular of an oil filter for a combustion engine |
DE102014012473A1 (en) | 2014-08-21 | 2016-02-25 | Man Truck & Bus Ag | Method and device for changing a filter, in particular an oil filter for an internal combustion engine |
CN112502808A (en) * | 2019-09-16 | 2021-03-16 | 现代自动车株式会社 | Method for controlling oil pump of vehicle |
DE102020126166A1 (en) | 2020-10-07 | 2022-04-07 | Bayerische Motoren Werke Aktiengesellschaft | Method and lubricant conditioning device for use in a machine and motor vehicle |
Also Published As
Publication number | Publication date |
---|---|
CN102678223B (en) | 2016-08-03 |
DE102011008680A1 (en) | 2012-07-19 |
BR102012000924A8 (en) | 2018-03-06 |
KR101785256B1 (en) | 2017-10-16 |
US20120180751A1 (en) | 2012-07-19 |
CN102678223A (en) | 2012-09-19 |
US8973550B2 (en) | 2015-03-10 |
BR102012000924A2 (en) | 2016-02-16 |
RU2012101120A (en) | 2013-07-20 |
BR102012000924B1 (en) | 2021-02-09 |
KR20120083223A (en) | 2012-07-25 |
EP2476870B1 (en) | 2016-06-29 |
SI2476870T1 (en) | 2016-11-30 |
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