EP3980629B1 - Internal combustion engine and method for operating an internal combustion engine of this type - Google Patents
Internal combustion engine and method for operating an internal combustion engine of this type Download PDFInfo
- Publication number
- EP3980629B1 EP3980629B1 EP19732873.5A EP19732873A EP3980629B1 EP 3980629 B1 EP3980629 B1 EP 3980629B1 EP 19732873 A EP19732873 A EP 19732873A EP 3980629 B1 EP3980629 B1 EP 3980629B1
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- EP
- European Patent Office
- Prior art keywords
- oil
- internal combustion
- combustion engine
- lubricating oil
- loop
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000002485 combustion reaction Methods 0.000 title claims description 60
- 238000000034 method Methods 0.000 title claims description 11
- 239000003921 oil Substances 0.000 claims description 118
- 239000010687 lubricating oil Substances 0.000 claims description 88
- 239000007789 gas Substances 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 description 12
- 239000000314 lubricant Substances 0.000 description 6
- 239000002245 particle Substances 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000012159 carrier gas Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000010913 used oil Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000037406 food intake Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000003879 lubricant additive Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000126 substance Substances 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
- F01M11/04—Filling or draining lubricant of or from machines or engines
- F01M11/0458—Lubricant filling and draining
-
- 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
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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
- F01M11/0004—Oilsumps
-
- 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
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/02—Arrangements of lubricant conduits
- F01M2011/021—Arrangements of lubricant conduits for lubricating auxiliaries, e.g. pumps or turbo chargers
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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
- F01M11/0458—Lubricant filling and draining
- F01M2011/0466—Filling or draining during running
-
- 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
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
- F01M2013/0438—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil with a filter
Definitions
- the present invention relates to an internal combustion engine with an oil circuit having the features of the preamble of claim 1 and a method for operating an internal combustion engine having the features of the preamble of claim 11.
- an amount of lubricating oil may vary due to the operation of the internal combustion engine due to some consumption of the lubricant that naturally occurs in the combustion cylinders and other elevated temperature locations.
- the quantity of lubricant must therefore be checked periodically (usually by the operator or automatically via the engine control) and - if necessary - an appropriate quantity of fresh lubricant must be added to the internal combustion engine in order to keep the internal combustion engine's lubricant at a required level.
- Lubricating oil degradation occurs due to a depletion of lubricating additives that perform specific functions such as viscosity control, wear, increase lubricity, minimize deposits, prevent oxidation, and other desired properties. Lubricating oil degradation can also occur through the ingestion of foreign matter into the lubricating oil, such as dirt from the environment, wear materials from the engine that occur as part of the natural process of operation, and combustion residues from the combustion process.
- Factors that influence the quality of the lubricating oil are intensive and/or long contact with combustion gases, intensive and/or long contact with hot and/or large surfaces, high temperatures or contact with catalytically active substances (such as metals such as copper or iron) in the internal combustion engine.
- catalytically active substances such as metals such as copper or iron
- the lubricating oil must be replaced when a certain lower quality limit is reached or after a certain number of operating hours. In the case of stationary internal combustion engines in particular, however, it involves a great deal of effort to replace all the lubricating oil and the associated filters. Substantial effort and expense are also associated with disposing of and refilling the significant amount of lubricating oil. It is therefore necessary to find a way of maintaining the lubricating oil quality for as long as possible in order to have to carry out an oil change (and the associated service work) as rarely as possible and to reduce the operating costs of the system.
- One way to improve the quality of engine lubricating oil is to periodically remove some or all of the lubricating oil and replace it with fresh lubricating oil. Filters are also used to remove foreign materials above a certain particle size from the lubricating oil.
- the object of the invention is to provide an internal combustion engine and a method for operating an internal combustion engine, by means of which the lubricating oil quality in an oil circuit can be improved and/or the operating hours of the internal combustion engine can be extended during two oil change intervals.
- the stated disadvantages of methods known from the prior art are to be avoided.
- a most heavily contaminated lubricating oil can be collected before it mixes again with less heavily contaminated lubricating oil, for example in an oil pan of the internal combustion engine.
- a most heavily contaminated, separated lubricating oil can be specifically removed from the oil circuit and thus (only) the most heavily contaminated lubricating oil with the lowest quality can be derived in a targeted manner.
- At least one return line is provided, by means of which at least part of the lubricating oil collected in the at least one collection container can be returned to the at least one oil reservoir, preferably via a filter element.
- the at least one oil reservoir can be designed at least partially as an oil pan or oil sump of the internal combustion engine.
- the oil reservoir as a separate Lubricating oil tank is designed or as a separate lubricating oil tank in addition to an oil pan or an oil sump of the internal combustion engine.
- blow-by gases When operating an internal combustion engine, so-called blow-by gases are known to arise, which must be discharged from a crankcase of the internal combustion engine in order to avoid an increase in the pressure in the crankcase.
- this crankcase ventilation gas (blow-by gas) is returned to an air intake of the internal combustion engine.
- the carrier gas contains fine droplets and solid particles in the size range of about 0.1 ⁇ m to 10 ⁇ m.
- an oil volume of the lubricating oil in the at least one collection container is between 5% and 10% of the total oil volume of the oil circuit.
- the entire oil volume of the oil circuit can change calculated from the volume of lubricating oil in the lines in the internal combustion engine, from the volume of lubricating oil in any oil pan or oil reservoir provided and the volume of lubricating oil in any external oil tanks provided and the oil volume of the lubricating oil in preferably provided filter units.
- fresh lubricant used in this application is to be understood as a base lubricant/lubricating oil that contains a desired amount and type of fresh lubricant additives and/or is free of foreign substances to a certain extent.
- the at least one supply device has at least one extraction line, at least one pump and/or at least one controllable or adjustable valve and/or at least one fresh oil tank.
- a control or regulating unit connected to the at least one supply device in a signal-conducting manner can be provided, which is designed to supply a defined volume of oil to the oil circuit by controlling or regulating the at least one supply device. It can preferably be provided that the at least one Delivery device is designed to keep a total oil volume of the oil circuit constant by controlling or regulating the at least one delivery device.
- a control or regulating unit and a supply device can be provided, by means of which an oil volume in the oil circuit is automatically kept constant.
- a control or regulation unit connected to the at least one removal device in a signal-conducting manner is provided, which is designed to remove a defined volume of oil from the oil circuit by controlling or regulating the at least one removal device. It can preferably be provided that the control or regulation unit removes a predefined oil volume of lubricating oil from the collection container at predefined time intervals and preferably feeds the removed oil volume back to the oil circuit in the form of fresh oil through a supply line.
- collected downstream can mean that an oil of higher quality applied to at least one component of the internal combustion engine loses quality as a result of the lubrication and/or cooling of this at least one component, and the oil that comes from the at least one component - preferably directly - and is possibly of reduced quality is then collected (i.e. possibly independently of the formation of a liquid flow).
- the internal combustion engine 1 shows an embodiment of an internal combustion engine 1 according to the invention with an oil circuit.
- the internal combustion engine 1 has a crankshaft housing 4 which is closed off by an oil pan 3 in its lower region.
- this oil pan 3 forms the oil reservoir 2.
- Lubricating oil can be supplied to individual components of the internal combustion engine 1 through the oil circuit.
- the turbocharger 6 is supplied with lubricating oil from the oil pan 3 via the supply line 19 in order to cool or lubricate it.
- a blow-by gas can be discharged from the crankcase 4 and fed to a blow-by filter 7 through a discharge line 20 for blow-by gases.
- the lubricating oil which is a lubricating oil with increased traces of consumption (greatly reduced lubricating oil quality)
- the lubricating oil can be fed to a collection container 5 in which the lubricating oil can collect and gases can be released from the lubricating oil.
- gases occurring in the collection container 5 can circulate to the crankcase 4 of the internal combustion engine 1 via a connecting line 23 .
- the connecting line 23 is arranged in such a way that it
- Crankcase 4 connects above a liquid level to the collecting tank 5 above a liquid level of the lubricating oil (the liquid levels are symbolized by horizontal lines).
- a removal device 8 is provided, by means of which lubricating oil (which collects in the collection container 5) can be discharged from the collection container 5 .
- this removal device 8 has a removal line 9 which leads part of the lubricating oil collected in the collection container 5 to a waste oil tank 12 .
- the removal of the used lubricating oil from the collection container 5 can be controlled or regulated via the pump 10 of the removal device 8 and/or the controllable or adjustable valve 11 of the removal device 8 .
- a return line 13 is also provided in order to return the remaining part of the used lubricating oil to the oil pan 3 of the internal combustion engine 1. It can be provided that in this return line 13 a additional filter element for lubricating oil or a non-return valve (non-return valve) is available.
- a feed device 14 is provided, which feed device 14 can feed fresh lubricating oil from a fresh oil tank 18 into the oil pan 3 (and thus the oil circuit) via a feed line 15 .
- the supply device 14 has a pump 16 of the supply device 14 and a controllable or adjustable valve 17 of the supply device 14 in order to be able to control or regulate the amount of fresh oil volume supplied over time.
- a control or regulating unit 22 is also provided, which is connected via signal-conducting connections 21 to the pump 10 of the withdrawal device 8, the controllable or regulatable valve 11 of the withdrawal line 8, the pump 16 of the delivery device 14 and the controllable or regulatable valve 17 of the delivery device 14. It can be provided, for example, that the used oil volume removed per unit of time and/or the fresh oil volume supplied per unit of time can be controlled or regulated via the control or regulating unit 22 via the pumps 16, 10 and/or the controllable or adjustable valves 11, 17. It can be provided, for example, that used lubricating oil that has been removed via the removal device 8 is compensated for by fresh lubricating oil via the supply device 14 in an essentially true-to-volume manner by means of the control or regulating unit 22 .
- control or regulating unit 22 is designed via sensors to detect a total oil volume of the internal combustion engine 1 (for example via a filling level through the liquid level of the lubricating oil in the oil pan 3) and the supply device 14 and/or the removal device 8 to such control or regulate that this liquid level (or the total volume of lubricating oil) is kept constant.
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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)
Description
Die vorliegende Erfindung betrifft eine Brennkraftmaschine mit einem Ölkreislauf mit den Merkmalen des Oberbegriffs des Anspruchs 1 und ein Verfahren zum Betreiben einer Brennkraftmaschine mit den Merkmalen des Oberbegriffs des Anspruchs 11.The present invention relates to an internal combustion engine with an oil circuit having the features of the preamble of claim 1 and a method for operating an internal combustion engine having the features of the preamble of
Um einen einwandfreien Betrieb und eine lange Lebensdauer einer Brennkraftmaschine garantieren zu können, ist es Voraussetzung, eine gewisse Schmierölqualität und -menge bereitzustellen. Im Allgemeinen kann eine Schmierölmenge wegen des Betriebs der Brennkraftmaschine aufgrund eines gewissen Verbrauchs des Schmiermittels, was natürlicherweise in den Verbrennungszylindern und anderen Positionen erhöhter Temperatur auftritt, variieren. Die Schmiermittelmenge muss daher (meist durch den Betreiber oder automatisch über die Motrorsteuerung) periodisch überprüft werden und - falls erforderlich - muss der Brennkraftmaschine eine entsprechende Menge an frischem Schmiermittel hinzugefügt werden, um das Schmiermittel der Brennkraftmaschine bei einer geforderten Menge zu halten.In order to be able to guarantee trouble-free operation and a long service life of an internal combustion engine, it is necessary to provide a certain quality and quantity of lubricating oil. In general, an amount of lubricating oil may vary due to the operation of the internal combustion engine due to some consumption of the lubricant that naturally occurs in the combustion cylinders and other elevated temperature locations. The quantity of lubricant must therefore be checked periodically (usually by the operator or automatically via the engine control) and - if necessary - an appropriate quantity of fresh lubricant must be added to the internal combustion engine in order to keep the internal combustion engine's lubricant at a required level.
Allgemein vermindert sich auch die Qualität des Schmieröles in einer Brennkraftmaschine mit dem Betrieb der Brennkraftmaschine. Ein Schmierölabbau tritt aufgrund einer Erschöpfung von Schmiermitteladditiven auf, die spezifische Funktionen wie Viskositätssteuerung, Verschleiß, Erhöhung der Schmierfähigkeit, Minimierung von Ablagerungen, Oxidationsverhinderung und andere gewünschte Eigenschaften erfüllt. Ein Schmierölabbau kann auch durch die Aufnahme von Fremdkörpern in das Schmieröl, wie Schmutz aus der Umgebung, Verschleißmaterialien aus dem Motor, die als Teil des natürlichen Betriebsverfahrens auftreten, und Verbrennungsrückstände aus dem Verbrennungsvorgang auftreten.In general, the quality of the lubricating oil in an internal combustion engine also deteriorates with the operation of the internal combustion engine. Lubricating oil degradation occurs due to a depletion of lubricating additives that perform specific functions such as viscosity control, wear, increase lubricity, minimize deposits, prevent oxidation, and other desired properties. Lubricating oil degradation can also occur through the ingestion of foreign matter into the lubricating oil, such as dirt from the environment, wear materials from the engine that occur as part of the natural process of operation, and combustion residues from the combustion process.
Faktoren, welche die Schmierölqualität beeinflussen, sind der intensive und/oder lange Kontakt mit Verbrennungsgasen, der intensive und/oder lange Kontakt mit heißen und/oder großen Oberflächen, hohe Temperaturen oder der Kontakt mit katalytisch wirkenden Substanzen (wie beispielsweise Metallen wie Kupfer oder Eisen) in der Brennkraftmaschine.Factors that influence the quality of the lubricating oil are intensive and/or long contact with combustion gases, intensive and/or long contact with hot and/or large surfaces, high temperatures or contact with catalytically active substances (such as metals such as copper or iron) in the internal combustion engine.
Bei Erreichen einer bestimmten unteren Qualitätsgrenze oder nach einer bestimmten Betriebsstundenzahl muss das Schmieröl getauscht werden. Vor allem bei stationären Brennkraftmaschinen stellt es jedoch einen großen Aufwand dar, das gesamte Schmieröl und die zugehörigen Filter zu tauschen. Substantieller Aufwand und Kosten sind außerdem damit verbunden, die erhebliche Menge an Schmieröl zu entsorgen und neu nachzufüllen. Es gilt daher, einen Weg zu finden, die Schmierölqualität möglichst lange aufrecht zu erhalten, um einen Ölwechsel (und die damit verbundenen Servicearbeiten) möglichst selten durchführen zu müssen und die Betriebskosten der Anlage zu verringern.The lubricating oil must be replaced when a certain lower quality limit is reached or after a certain number of operating hours. In the case of stationary internal combustion engines in particular, however, it involves a great deal of effort to replace all the lubricating oil and the associated filters. Substantial effort and expense are also associated with disposing of and refilling the significant amount of lubricating oil. It is therefore necessary to find a way of maintaining the lubricating oil quality for as long as possible in order to have to carry out an oil change (and the associated service work) as rarely as possible and to reduce the operating costs of the system.
Ein Weg zum Verbessern der Qualität des Schmieröls der Brennkraftmaschine bestehen darin, periodisch einen Teil oder das gesamte Schmieröl zu entfernen und es mit frischem Schmieröl zu ersetzen. Auch werden Filter verwendet, um Fremdmaterialien über einer bestimmten Partikelgröße aus dem Schmieröl zu entfernen.One way to improve the quality of engine lubricating oil is to periodically remove some or all of the lubricating oil and replace it with fresh lubricating oil. Filters are also used to remove foreign materials above a certain particle size from the lubricating oil.
Dabei sind beispielsweise Methoden bekannt, bei denen während des Betriebs der Brennkraftmaschine kontinuierlich oder mit Zeitversatz kleine Mengen an Schmieröl aus der Ölwanne der Brennkraftmaschine entfernt werden und diese Mengen gleichzeitig durch frisches Schmieröl ersetzt werden. Dies ist beispielsweise durch die
Nachteilig an einem solchen Verfahren ist jedoch, dass bei der Entnahme von Schmieröl aus der Ölwanne Schmieröl entnommen wird, welches mit seiner Qualität noch nicht an den Grenzen der Verwendbarkeit oder Belastbarkeit steht. Da sich das Schmieröl in der Ölwanne immer wieder mit dem frischen und dem verbrauchten Schmieröl vermischt, bildet sich stets ein Schmierölgemisch in der Ölwanne, welches aus Gründen von unzureichender Qualität noch nicht zwingend aus dem Ölkreislauf der Brennkraftmaschine entfernt werden müsste.The disadvantage of such a method, however, is that when removing lubricating oil from the oil pan lubricating oil is removed, which with its quality is not yet at the limits of usability or resilience. Since the lubricating oil in the oil pan mixes again and again with the fresh and used lubricating oil, a lubricating oil mixture is always formed in the oil pan which, for reasons of insufficient quality, does not necessarily have to be removed from the oil circuit of the internal combustion engine.
Aufgabe der Erfindung ist es, eine Brennkraftmaschine, sowie ein Verfahren zum Betreiben einer Brennkraftmaschine bereitzustellen, mittels welchem die Schmierölqualität in einem Ölkreislauf verbessert werden kann und/oder die Betriebsstunden der Brennkraftmaschine während zweier Ölwechselintervalle verlängert werden könnte. Insbesondere sollen genannte Nachteile von aus dem Stand der Technik bekannten Verfahren vermieden werden.The object of the invention is to provide an internal combustion engine and a method for operating an internal combustion engine, by means of which the lubricating oil quality in an oil circuit can be improved and/or the operating hours of the internal combustion engine can be extended during two oil change intervals. In particular, the stated disadvantages of methods known from the prior art are to be avoided.
Diese Aufgabe wird durch eine Brennkraftmaschine mit den Merkmalen des Anspruchs 1 und einem Verfahren zum Betreiben einer Brennkraftmaschine mit den Merkmalen des Anspruchs 11 gelöst.This object is achieved by an internal combustion engine having the features of claim 1 and a method for operating an internal combustion engine having the features of
Dies geschieht, indem der Ölkreislauf durch Führen von Schmieröl zum Versorgen wenigstens einer Komponente der Brennkraftmaschine ausgebildet ist, mit wenigstens einem Ölreservoir zum Bereitstellen des Schmieröles für den Ölkreislauf, wobei die wenigstens eine Komponente wenigstens einen Turbolader und/oder einen Blow-by-Filter beinhaltet, wobei
- wenigstens ein vom wenigstens einen Ölreservoir separater Sammelbehälter vorgesehen ist, wobei in wenigstens einem Sammelbehälter Schmieröl im Ölkreislauf stromabwärts der wenigstens einen Komponente sammelbar ist, und
- wenigstens eine Entnahmevorrichtung vorgesehen ist, mittels welcher zumindest ein Teil des im wenigstens einen Sammelbehälter gesammelten Schmieröls aus dem wenigstens einen Ölkreislauf entnehmbar ist.
- at least one collection container separate from the at least one oil reservoir is provided, lubricating oil in the oil circuit downstream of the at least one component being able to be collected in at least one collection container, and
- at least one removal device is provided, by means of which at least part of the lubricating oil collected in the at least one collection container can be removed from the at least one oil circuit.
Durch das Vorsehen eines Sammelbehälters, welcher Schmieröl kommend von einer Komponente auffängt, bei welcher das Schmieröl zur Kühlung oder zur Schmierung verwendet wird, kann ein am stärksten belastetes Schmieröl gesammelt werden bevor es sich wieder mit nicht so stark belastetem Schmieröl, beispielsweise in einer Ölwanne der Brennkraftmaschine, vermischt. Indem anschließend dieses am stärksten belastete Schmieröl aus dem wenigstens einen Sammelbehälter zumindest teilweise entnommen wird, kann gezielt ein am stärksten belastetes, abgetrenntes Schmieröl aus dem Ölkreislauf entnommen werden und somit gezielt (nur) das am stärksten belastete Schmieröl mit der geringsten Qualität abgeleitet werden.By providing a collection container, which collects lubricating oil coming from a component in which the lubricating oil is used for cooling or lubrication, a most heavily contaminated lubricating oil can be collected before it mixes again with less heavily contaminated lubricating oil, for example in an oil pan of the internal combustion engine. By then at least partially removing this most heavily contaminated lubricating oil from the at least one collection container, a most heavily contaminated, separated lubricating oil can be specifically removed from the oil circuit and thus (only) the most heavily contaminated lubricating oil with the lowest quality can be derived in a targeted manner.
Vorteilhafte Ausführungsformen der Erfindung sind in den abhängigen Ansprüchen definiert.Advantageous embodiments of the invention are defined in the dependent claims.
Vorzugsweise ist vorgesehen, dass wenigstens eine Rückführleitung vorgesehen ist, mittels welcher zumindest ein Teil des im wenigstens einen Sammelbehälter gesammelten Schmieröls, vorzugsweise über ein Filterelement, in das wenigstens eine Ölreservoir rückführbar ist.It is preferably provided that at least one return line is provided, by means of which at least part of the lubricating oil collected in the at least one collection container can be returned to the at least one oil reservoir, preferably via a filter element.
Folglich ist beispielsweise die Möglichkeit geschaffen, dass nur ein Teil des belasteten Schmieröls aus dem Sammelbehälter entnommen wird und der restliche Teil des belasteten Schmieröls wieder in das Ölreservoir zur Weiterverwendung im Ölkreislauf rückgeführt wird. Durch eine solche Ausführung kann kontinuierlich eine kleine Menge an belastetem Schmieröl abgeführt werden. Wenn die gesamte Menge an Schmieröl aus dem Sammelbehälter abgeführt werden würde, würde dies zu einem unerwünscht stark erhöhten Schmierölverbrauch der Brennkraftmaschine führen.Consequently, for example, the possibility is created that only part of the contaminated lubricating oil is removed from the collection container and the remaining portion of the contaminated lubricating oil is returned to the oil reservoir for further use in the oil circuit. Such a design allows a small amount of contaminated lubricating oil to be discharged continuously. If the entire quantity of lubricating oil were to be drained from the collection container, this would lead to an undesirably greatly increased consumption of lubricating oil by the internal combustion engine.
Es kann vorgesehen sein, dass das wenigstens eine Ölreservoir zumindest teilweise als Ölwanne oder Ölsumpf der Brennkraftmaschine ausgebildet ist. Es ist jedoch auch durchaus denkbar, dass das Ölreservoir als separater Schmieröltank ausgebildet ist oder als separater Schmieröltank zusätzlich zu einer Ölwanne oder einem Ölsumpf der Brennkraftmaschine.Provision can be made for the at least one oil reservoir to be designed at least partially as an oil pan or oil sump of the internal combustion engine. However, it is also quite conceivable that the oil reservoir as a separate Lubricating oil tank is designed or as a separate lubricating oil tank in addition to an oil pan or an oil sump of the internal combustion engine.
Vorzugsweise ist vorgesehen, dass die wenigstens eine Komponente wenigstens einen Turbolader beinhaltet. Es ist im Stand der Technik geläufig, durch das Schmieröl und den Ölkreislauf einen Turbolader der Brennkraftmaschine zu schmieren und/oder zu kühlen. Jedoch ist das Schmieröl bei der Kühlung und/oder Schmierung des Turboladers starken thermischen Belastung ausgesetzt, da der Turbolader erhöhte Temperaturen aufweist und das Schmieröl beim Turbolader durch den Kontakt mit Abgasen verstärkt altert (oxidiert) und durch Verbrennungspartikel verunreinigt wird.Provision is preferably made for the at least one component to contain at least one turbocharger. It is common practice in the prior art to use the lubricating oil and the oil circuit to lubricate and/or cool a turbocharger of the internal combustion engine. However, when cooling and/or lubricating the turbocharger, the lubricating oil is exposed to high thermal loads, since the turbocharger has elevated temperatures and the lubricating oil in the turbocharger ages (oxidizes) more as a result of contact with exhaust gases and is contaminated by combustion particles.
Es kann vorgesehen sein, dass die wenigstens eine Komponente einen Blow-by-Filter beinhaltet.Provision can be made for the at least one component to contain a blow-by filter.
Beim Betrieb einer Brennkraftmaschine entstehen bekannterweise sogenannte Blow-by-Gase, die aus einem Kurbelwellengehäuse der Brennkraftmaschine abzuführen sind, um ein Ansteigen des Drucks im Kurbelgehäuse zu vermeiden. In geschlossenen Kurbelgehäuse-Entlüftungssystemen wird dieses Kurbelgehäuse-Entlüftungsgas (Blow-by-Gas) zu einem Lufteinlass der Brennkraftmaschine zurückgeführt. Das Trägergas enthält feine Tröpfchen und Feststoffpartikel in der Größenordnung von etwa 0,1 µm bis 10 µm.When operating an internal combustion engine, so-called blow-by gases are known to arise, which must be discharged from a crankcase of the internal combustion engine in order to avoid an increase in the pressure in the crankcase. In closed crankcase ventilation systems, this crankcase ventilation gas (blow-by gas) is returned to an air intake of the internal combustion engine. The carrier gas contains fine droplets and solid particles in the size range of about 0.1 µm to 10 µm.
Um negative Auswirkungen dieses im Blow-by-Gas enthaltenen Öls auf Komponenten im Lufteinlass der Brennkraftmaschine zu vermeiden, ist es bekannt, Öl und auch Feststoffpartikel aus dem Trägergas mittels eines Blow-By-Filters abzuscheiden.In order to avoid negative effects of this oil contained in the blow-by gas on components in the air intake of the internal combustion engine, it is known to separate oil and also solid particles from the carrier gas by means of a blow-by filter.
Es kann vorgesehen sein, dass ein Ölvolumen des Schmieröls im wenigstens einen Sammelbehälter zwischen 5 % und 10 % des gesamten Ölvolumens des Ölkreislaufs beträgt. Das gesamte Ölvolumen des Ölkreislaufs kann sich dabei aus dem Volumen des Schmieröls in den Leitungen in der Brennkraftmaschine, aus dem Volumen des Schmieröls in der gegebenenfalls vorgesehenen Ölwanne oder Ölreservoirs und dem Volumen des Schmieröls in gegebenenfalls vorgesehenen externen Öltanks sowie den Ölvolumen des Schmieröls in vorzugsweise vorgesehenen Filtereinheiten berechnen.It can be provided that an oil volume of the lubricating oil in the at least one collection container is between 5% and 10% of the total oil volume of the oil circuit. The entire oil volume of the oil circuit can change calculated from the volume of lubricating oil in the lines in the internal combustion engine, from the volume of lubricating oil in any oil pan or oil reservoir provided and the volume of lubricating oil in any external oil tanks provided and the oil volume of the lubricating oil in preferably provided filter units.
Vorzugsweise ist vorgesehen, dass die wenigstens eine Entnahmevorrichtung wenigstens eine Entnahmeleitung, wenigstens eine Pumpe und/oder wenigstens ein steuer- oder regelbares Ventil und/oder wenigstens einen Altöltank aufweist.Provision is preferably made for the at least one removal device to have at least one removal line, at least one pump and/or at least one controllable or regulatable valve and/or at least one waste oil tank.
Besonders bevorzugt ist vorgesehen, dass wenigstens eine Zuführvorrichtung vorgesehen ist, mittels welcher wenigstens einen Zuführvorrichtung dem Ölkreislauf vorzugsweise über das wenigstens eine Ölreservoir zusätzliches frisches Schmieröl zuführbar ist.Provision is particularly preferably made for at least one supply device to be provided, by means of which at least one supply device can be used to supply additional fresh lubricating oil to the oil circuit, preferably via the at least one oil reservoir.
Das in dieser Anmeldung verwendete Synonym "frisches Schmiermittel" ist als Grundschmiermittel / Schmieröl zu verstehen, dass eine gewünschte Menge und Art von frischen Schmiermitteladditiven enthält und/oder bis zu einem gewissen Grad frei von Fremdstoffen ist.The synonym "fresh lubricant" used in this application is to be understood as a base lubricant/lubricating oil that contains a desired amount and type of fresh lubricant additives and/or is free of foreign substances to a certain extent.
Es kann vorgesehen sein, dass die wenigstens eine Zuführvorrichtung wenigstens eine Entnahmeleitung, wenigstens eine Pumpe und/oder wenigstens ein steuer- oder regelbares Ventil und/oder wenigstens einen Frischöltank aufweist.It can be provided that the at least one supply device has at least one extraction line, at least one pump and/or at least one controllable or adjustable valve and/or at least one fresh oil tank.
In einem Ausführungsbeispiel der Erfindung kann eine signalleitend mit der wenigstens einen Zuführvorrichtung verbundene Steuer- oder Regeleinheit vorgesehen sein, welche dazu ausgebildet ist, dem Ölkreislauf durch Steuern oder Regeln der wenigstens einen Zuführvorrichtung ein definiertes Ölvolumen zuzuführen. Bevorzugt kann dabei vorgesehen sein, dass die wenigstens eine Zuführvorrichtung dazu ausgebildet ist, ein gesamtes Ölvolumen des Ölkreislaufes durch Steuern oder Regeln der wenigstens einen Zuführvorrichtung konstant zu halten.In one exemplary embodiment of the invention, a control or regulating unit connected to the at least one supply device in a signal-conducting manner can be provided, which is designed to supply a defined volume of oil to the oil circuit by controlling or regulating the at least one supply device. It can preferably be provided that the at least one Delivery device is designed to keep a total oil volume of the oil circuit constant by controlling or regulating the at least one delivery device.
Demzufolge kann eine Steuer- oder Regeleinheit und eine Zuführvorrichtung vorgesehen sein, mittels welcher automatisch ein Ölvolumen im Ölkreislauf konstant gehalten wird.Accordingly, a control or regulating unit and a supply device can be provided, by means of which an oil volume in the oil circuit is automatically kept constant.
Vorzugsweise ist vorgesehen, dass eine signalleitend mit der wenigstens einen Entnahmevorrichtung verbundene Steuer- oder Regeleinheit vorgesehen ist, welche dazu ausgebildet ist, durch Steuern oder Regeln der wenigstens einen Entnahmevorrichtung ein definiertes Ölvolumen aus dem Ölkreislauf zu entnehmen. Dabei kann es bevorzugt vorgesehen sein, dass die Steuer- oder Regeleinheit in vorgegebenen Zeitintervallen ein vorgegebenes Ölvolumen an Schmieröl aus dem Sammelbehälter entnimmt und bevorzugt durch eine Zuführleitung das entnommene Ölvolumen dem Ölkreislauf in Form von Frischöl wieder zuführt.It is preferably provided that a control or regulation unit connected to the at least one removal device in a signal-conducting manner is provided, which is designed to remove a defined volume of oil from the oil circuit by controlling or regulating the at least one removal device. It can preferably be provided that the control or regulation unit removes a predefined oil volume of lubricating oil from the collection container at predefined time intervals and preferably feeds the removed oil volume back to the oil circuit in the form of fresh oil through a supply line.
Bevorzugt ist vorgesehen, dass der wenigstens eine Sammelbehälter und wenigstens ein Kurbelwellengehäuses oberhalb eines Flüssigkeitsniveaus miteinander verbunden sind, sodass Gase zwischen dem wenigstens einen Sammelbehälter und dem Kurbelwellengehäuses zirkulieren können.Provision is preferably made for the at least one collection container and at least one crankshaft housing to be connected to one another above a liquid level, so that gases can circulate between the at least one collection container and the crankshaft housing.
Weiters wird Schutz begehrt für ein Verfahren zum Betreiben einer Brennkraftmaschine, wobei mittels eines in einem Ölkreislauf geführten Schmieröles wenigstens eine Komponente der Brennkraftmaschine geschmiert und/oder gekühlt wird und wobei durch wenigstens ein Ölreservoir Schmieröl für den Ölkreislauf bereitgestellt wird, dadurch gekennzeichnet, dass
- in einem vom wenigstens einen Ölreservoir separaten Sammelbehälter Schmieröl im Ölkreislauf stromabwärts der wenigstens einen Komponente gesammelt wird, und
- durch eine Entnahmevorrichtung zumindest ein Teil des im wenigstens einen Sammelbehälter gesammelten Schmieröls entnommen wird.
- lubricating oil is collected in the oil circuit downstream of the at least one component in a collection container separate from the at least one oil reservoir, and
- at least part of the lubricating oil collected in the at least one collection container is removed by a removal device.
Im Kontext der Erfindung kann mit "stromabwärts gesammelt" gemeint sein, dass ein auf zumindest eine Komponente der Brennkraftmaschine aufgebrachtes Öl höherer Qualität durch die Schmierung und/oder Kühlung dieser zumindest einen Komponente gegebenenfalls an Qualität verliert und das von der zumindest einen Komponente - vorzugsweise direkt - kommende und gegebenfalls qualitäts-verminderte Öl anschließend gesammelt wird (also unter Umständen unabhängig von der Ausbildung einer Flüssigkeitsströmung).In the context of the invention, "collected downstream" can mean that an oil of higher quality applied to at least one component of the internal combustion engine loses quality as a result of the lubrication and/or cooling of this at least one component, and the oil that comes from the at least one component - preferably directly - and is possibly of reduced quality is then collected (i.e. possibly independently of the formation of a liquid flow).
Bevorzugt ist vorhesehen, dass ein gegebenenfalls qualitäts-vermindertes Öl von zumindest einem Blow-by-Filter stromabwärts zumindest einer Komponente aufgefangen wird und in dem zumindest einen Sammelbehälter gesammelt wird.Provision is preferably made for any oil that may have deteriorated in quality to be collected by at least one blow-by filter downstream of at least one component and collected in the at least one collection container.
Weitere Vorteile und Einzelheiten der Erfindung ergeben sich anhand der Figur sowie der dazugehörigen Figurenbeschreibung.Further advantages and details of the invention result from the figure and the associated description of the figure.
Durch den Ölkreislauf kann Schmieröl einzelnen Komponenten der Brennkraftmaschine 1 zugeführt werden. So wird beispielsweise über die Versorgungsleitung 19 dem Turbolader 6 Schmieröl aus der Ölwanne 3 zugeführt, um diesen zu kühlen oder zu schmieren. Weiters ist durch eine Abführleitung 20 für Blow-by-Gase aus dem Kurbelwellengehäuse 4 ein Blow-by-Gas abführbar und einem Blow-by-Filter 7 zuführbar.Lubricating oil can be supplied to individual components of the internal combustion engine 1 through the oil circuit. For example, the
Anschließend an die Komponenten (Turbolader 6 und Blow-by-Filter 7) kann das Schmieröl, welches ein Schmieröl mit erhöhten Verbrauchspuren (stark gesenkter Schmierölqualität) darstellt, jeweils einem Sammelbehälter 5 zugeführt werden, in welchem sich das Schmieröl sammeln kann und sich Gase vom Schmieröl lösen können. Diese im Sammelbehälter 5 anfallenden Gase können über eine Verbindungsleitung 23 mit dem Kurbelwellengehäuse 4 der Brennkraftmaschine 1 zirkulieren. Die Verbindungsleitung 23 ist dabei so angeordnet, dass sie dasSubsequent to the components (
Kurbelwellengehäuse 4 oberhalb eines Flüssigkeitsniveaus mit dem Sammelbehälter 5 oberhalb eines Flüssigkeitsniveaus des Schmieröls verbindet (die Flüssigkeitsniveaus sind durch horizontale Linien symbolisiert).
Gemäß der Erfindung ist eine Entnahmevorrichtung 8 vorgesehen, mittels welcher aus dem Sammelbehälter 5 Schmieröl (welches sich im Sammelbehälter 5 sammelt) abgeführt werden kann.According to the invention, a
Diese Entnahmevorrichtung 8 weist in diesem Ausführungsbeispiel eine Entnahmeleitung 9 auf, welche einen Teil des gesammelten Schmieröls des Sammelbehälters 5 zu einem Altöltank 12 führt. Die Entnahme des Altschmieröls aus dem Sammelbehälter 5 kann dabei über die Pumpe 10 der Entnahmevorrichtung 8 und/oder das steuer- oder regelbare Ventil 11 der Entnahmevorrichtung 8 gesteuert oder geregelt werden.In this exemplary embodiment, this
Da in diesem Ausführungsbeispiel nur ein Teil des gesammelten Schmieröls des Sammelbehälters 5 über die Entnahmevorrichtung 8 an den Altöltank 12 geleitet wird, ist weiters eine Rückführleitung 13 vorgesehen, um den verbleibenden Teil des Altschmieröls an die Ölwanne 3 der Brennkraftmaschine 1 rückzuführen. Es kann vorgesehen sein, dass in dieser Rückführleitung 13 ein weiteres Filterelement für Schmieröl oder eine Rückstromsperre (Rückschlagventil) vorhanden ist.Since in this exemplary embodiment only part of the lubricating oil collected in the
Zusätzlich ist in diesem Ausführungsbeispiel der
Weiters ist eine Steuer- oder Regeleinheit 22 vorgesehen, welche über signalleitende Verbindungen 21 mit der Pumpe 10 der Entnahmevorrichtung 8 dem steuer- oder regelbaren Ventil 11 der Entnahmeleitung 8 der Pumpe 16 der Zuführvorrichtung 14 und dem steuer- oder regelbaren Ventil 17 der Zuführvorrichtung 14 signalleitend verbunden ist. Dabei kann es beispielsweise vorgesehen sein, dass über die Steuer- oder Regeleinheit 22 das entnommene Altölvolumen pro Zeiteinheit und/oder das zugeführte Frischölvolumen pro Zeiteinheit über die Pumpen 16, 10 und/oder die steuer- oder regelbaren Ventile 11, 17 gesteuert oder geregelt werden kann. Dabei kann es beispielsweise vorgesehen sein, dass ein entnommenes Altschmieröl über die Entnahmevorrichtung 8 mittels der Steuer- oder Regeleinheit 22 im Wesentlichen volumentreu durch frisches Schmieröl über die Zuführvorrichtung 14 ausgeglichen wird.A control or regulating
Es kann jedoch auch vorgesehen sein, dass die Steuer- oder Regeleinheit 22 über Sensoren dazu ausgebildet ist, ein Gesamtölvolumen der Brennkraftmaschine 1 (beispielsweise über einen Füllstand durch das Flüssigkeitsniveau des Schmieröls in der Ölwanne 3) zu erfassen und die Zuführvorrichtung 14 und/oder die Entnahmevorrichtung 8 dermaßen zu steuern oder zu regeln, dass dieses Flüssigkeitsniveau (oder auch das Gesamtschmierölvolumen) konstant gehalten wird.However, it can also be provided that the control or regulating
- 11
- Brennkraftmaschineinternal combustion engine
- 22
- Ölreservoiroil reservoir
- 33
- Ölwannesump
- 44
- Kurbelwellengehäusecrankcase
- 55
- Sammelbehältercollection container
- 66
- Turboladerturbocharger
- 77
- Blow-by-Filterblow-by filter
- 88th
- Entnahmevorrichtungextraction device
- 99
- Entnahmeleitungsampling line
- 1010
- Pumpe der EntnahmevorrichtungSampling device pump
- 1111
- steuer- oder regelbares Ventil der Entnahmevorrichtungcontrollable or adjustable valve of the extraction device
- 1212
- Altöltankwaste oil tank
- 1313
- Rückführleitungreturn line
- 1414
- Zuführvorrichtungfeeding device
- 1515
- Zuführleitungsupply line
- 1616
- Pumpe der ZuführvorrichtungFeeder pump
- 1717
- steuer- oder regelbares Ventil der Zuführvorrichtungcontrollable or adjustable valve of the feeding device
- 1818
- Frischöltankfresh oil tank
- 1919
- Versorgungsleitung für TurboladerSupply line for turbocharger
- 2020
- Abführleitung für Blow-by-GaseDischarge line for blow-by gases
- 2121
- signalleitende Verbindungsignal-conducting connection
- 2222
- Steuer- oder RegeleinrichtungControl or regulating device
- 2323
- Verbindungsleitungconnection line
Claims (12)
- An internal combustion engine comprising an oil circuit, wherein the oil circuit is configured to supply at least one component of the internal combustion engine (1) with lubricating oil, and at least one oil reservoir (2) configured to provide the lubricating oil for the oil circuit, wherein- at least one collecting container (5) separate from the at least one oil reservoir (2) is provided, wherein the at least one collecting container (5) is configured to collect the lubricating oil in the oil circuit downstream of the at least one component, and- at least one oil remover (8) is provided by means of which at least a part of the lubricating oil collected in the at least one collecting container (5) from the at least one oil circuit is removable,characterized on that the at least one component includes at least one turbocharger (6) and/or a blow-by filter (7).
- The internal combustion engine of the preceding claim, characterized in that at least one return line (13) is provided, by means of which at least a part of the lubricating oil collected in the at least one collecting chamber (5) can be returned into the at least one oil reservoir (2), preferably via a filter element.
- The internal combustion engine of at least one of the preceding claims, characterized in that the at least one oil reservoir (2) is formed at least partially as an oil pan (3) or an oil sump of the internal combustion engine (1).
- The internal combustion engine at least one of the preceding claims, characterized in that the at least one oil remover (8) has at least one removal line (9), at least one pump (10), at least one open-loop or closed-loop controllable valve (11), and/or at least one old oil tank (12).
- The internal combustion engine of at least one of the preceding claims, characterized in that at least one oil supply (14) is provided, by means of which at least one oil supply (14) additional fresh lubricating oil can be fed to the oil circuit, preferably via the at least one oil reservoir (2).
- The internal combustion engine of claim 5, characterized in that the at least one oil supply (14) has at least one feed line (15), at least one pump (16), at least one open-loop or closed-loop controllable valve (17), and/or at least one fresh oil tank (18).
- The internal combustion engine of claim 5 or 6, characterized in that an open-loop or closed-loop controller (22) connected in signal-conducting relationship to the at least one oil supply (14) is provided, which is configured to feed a defined volume of oil to the oil circuit by open-loop or closed-loop control of the at least one oil supply (14).
- The internal combustion engine of at least one of the preceding claims, characterized in that an open-loop or closed-loop controller (22) in signal-conducting relationship to the at least one oil remover (8) is provided, which is configured to remove a defined volume of oil from the at least one collecting container (5) by open-loop or closed-loop control of the at least one oil remover (8).
- The internal combustion engine of claim 7 or 8, characterized in that the open-loop or closed-loop controller (22) is configured to maintain a constant total volume of oil of the oil circuit by open-loop or closed-loop control of the at least one oil supply (14) and/or the at least one oil remover (8) .
- The internal combustion engine of at least one of the preceding claims, characterized in that the at least one collecting container (5) and at least one crankcase (4) are connected together above a liquid level so that gases can circulate between the at least one collecting container (5) and the crankcase (4).
- A method of operating an internal combustion engine, preferably an internal combustion engine (1) of claims 1 to 10, wherein by means of flowing a lubricating oil in an oil circuit at least one component of the internal combustion engine (1) is lubricated and/or cooled and wherein the lubricating oil is provided for the oil circuit by at least one oil reservoir (2), wherein- the lubricating oil is collected in a collecting container (5) separate from the at least one oil reservoir (2) in the oil circuit downstream of the at least one component, and- at least a part of the lubricating oil collected in the at least one collecting container (5) is removed by an oil remover (8),characterized in that the at least one component includes at least one turbocharger and/or a blow-by filter.
- The method of claim 11, characterized in that the oil circuit is fed with a volume of fresh lubricating oil that corresponds to the volume of lubricating oil removed from the at least one collecting container (5).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/AT2019/060189 WO2020243758A1 (en) | 2019-06-07 | 2019-06-07 | Internal combustion engine and method for operating an internal combustion engine of this type |
Publications (2)
| Publication Number | Publication Date |
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| EP3980629A1 EP3980629A1 (en) | 2022-04-13 |
| EP3980629B1 true EP3980629B1 (en) | 2023-07-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| Country | Link |
|---|---|
| US (1) | US11725552B2 (en) |
| EP (1) | EP3980629B1 (en) |
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| WO (1) | WO2020243758A1 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0684368B1 (en) * | 1994-05-26 | 1998-07-29 | Nippon Oil Co., Ltd. | Method and apparatus for replenishing the lubricating oil of an internal combustion engine |
| EP0928883B1 (en) * | 1998-01-12 | 2004-06-23 | The Lubrizol Corporation | System for maintaining the quality and level of lubricant in an engine |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4720783B2 (en) * | 2007-05-09 | 2011-07-13 | 日産自動車株式会社 | Supercharger lubrication device |
| AT517483B1 (en) * | 2015-06-25 | 2017-02-15 | Ge Jenbacher Gmbh & Co Og | Oil supply system for an internal combustion engine |
| US10184368B2 (en) * | 2015-06-30 | 2019-01-22 | Honda Motor Co., Ltd. | Breather device for internal combustion engine |
| DE102015014950A1 (en) * | 2015-11-19 | 2017-05-24 | FEV Europe GmbH | Device for oil emergency supply of an internal combustion engine |
-
2019
- 2019-06-07 EP EP19732873.5A patent/EP3980629B1/en active Active
- 2019-06-07 WO PCT/AT2019/060189 patent/WO2020243758A1/en unknown
- 2019-06-07 CA CA3141771A patent/CA3141771A1/en active Pending
- 2019-06-07 US US17/617,297 patent/US11725552B2/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0684368B1 (en) * | 1994-05-26 | 1998-07-29 | Nippon Oil Co., Ltd. | Method and apparatus for replenishing the lubricating oil of an internal combustion engine |
| EP0928883B1 (en) * | 1998-01-12 | 2004-06-23 | The Lubrizol Corporation | System for maintaining the quality and level of lubricant in an engine |
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| Publication number | Publication date |
|---|---|
| US20220307397A1 (en) | 2022-09-29 |
| US11725552B2 (en) | 2023-08-15 |
| EP3980629A1 (en) | 2022-04-13 |
| CA3141771A1 (en) | 2020-12-10 |
| WO2020243758A1 (en) | 2020-12-10 |
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