EP1091098A1 - Lubrication circuit for a working machine - Google Patents

Lubrication circuit for a working machine Download PDF

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Publication number
EP1091098A1
EP1091098A1 EP00119083A EP00119083A EP1091098A1 EP 1091098 A1 EP1091098 A1 EP 1091098A1 EP 00119083 A EP00119083 A EP 00119083A EP 00119083 A EP00119083 A EP 00119083A EP 1091098 A1 EP1091098 A1 EP 1091098A1
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EP
European Patent Office
Prior art keywords
insert
oil
oil circuit
connections
circuit according
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.)
Withdrawn
Application number
EP00119083A
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German (de)
French (fr)
Inventor
Jochem Fischer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mann and Hummel GmbH
Original Assignee
Filterwerk Mann and Hummel GmbH
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Filing date
Publication date
Application filed by Filterwerk Mann and Hummel GmbH filed Critical Filterwerk Mann and Hummel GmbH
Publication of EP1091098A1 publication Critical patent/EP1091098A1/en
Withdrawn legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/04Filling or draining lubricant of or from machines or engines
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/03Mounting or connecting of lubricant purifying means relative to the machine or engine; Details of lubricant purifying means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00Pressure lubrication
    • F01M1/10Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters
    • F01M2001/105Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters characterised by the layout of the purification arrangements
    • F01M2001/1071Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters characterised by the layout of the purification arrangements comprising oil tanks
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/03Mounting or connecting of lubricant purifying means relative to the machine or engine; Details of lubricant purifying means
    • F01M2011/031Mounting or connecting of lubricant purifying means relative to the machine or engine; Details of lubricant purifying means characterised by mounting means
    • F01M2011/035Mounting or connecting of lubricant purifying means relative to the machine or engine; Details of lubricant purifying means characterised by mounting means comprising oil pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/04Filling or draining lubricant of or from machines or engines
    • F01M2011/0483Filling or draining lubricant of or from machines or engines with a lubricant cartridge for facilitating the change

Definitions

  • the invention relates to an oil circuit for a work machine, in particular a Internal combustion engine according to the preamble of claim 1.
  • Such oil circuits are according to the prior art in the engine block Internal combustion engine at least partially integrated.
  • the oil pan which forms a supply for the lubricating oil is in the lower area of the engine block appropriate. It is in direct connection with the crankcase, whereby the lubricating oil gathers there to be pumped up again lubricating points of the internal combustion engine to be promoted.
  • the object of the invention is therefore to provide an oil circuit which, in addition to low Manufacturing and assembly costs also cause low costs in operation and enables simple and reliable maintenance. This task is accomplished by the Features of claim 1 solved.
  • the oil circuit according to the invention consists of at least one line system Convey the oil to the lubrication points and a reservoir for the oil from which the Line system is fed. The oil also runs when it is not for lubrication is needed in this stock together.
  • the oil circuit according to the invention is thereby characterized in that this stock is part of an insert that is interchangeable is arranged in a receptacle of the working machine.
  • the stake is one Part of the oil circuit and can easily be used to change the lubricating oil be exchanged for a new assignment.
  • the recordings for the use can be provided, for example, on the working machine that the Contains oil circuit. The replacement is then done simply by loosening the attachment of the insert associated with the receptacle.
  • the insert can be attached to the machine or the oil circuit, where the recording z. B. consists of a bayonet connection, or it is according to another embodiment of the invention, an installation opening is provided for Installation of the insert can be opened and then closed.
  • an installation opening is provided for Installation of the insert can be opened and then closed.
  • a drawer-like receptacle can be used handling when replacing the insert is easier.
  • the cover of the installation opening leads to a higher reliability of the oil circuit in operation, because an additional seal can be created via the lid.
  • the use and the pipe system of the oil circuit connections that are used when installing the insert be connected to each other. This can be done by setting the Line system (for example, hoses), or the connections integrated into the insert in such a way that it automatically connects to the line system is connected by insertion into the receptacle. As an alternative to the connections the insert can also be open, so that the connections of the line system reach into this. The insert itself then has no connections on.
  • the Line system for example, hoses
  • the insert can also be open, so that the connections of the line system reach into this. The insert itself then has no connections on.
  • a particularly reliable variant of the invention in terms of maintenance results if the connections have valves in the event of a disconnection of the insert be closed by the oil circuit. This can be done manually or automatically by a corresponding connection of the valves to the connections. At the Disconnecting the insert from the oil circuit advantageously all openings, through which oil could escape into the environment. The change of This makes use particularly safe and can also be done by untrained personnel be performed.
  • the replaced insert results in a closed system and can be disposed of as a whole for the disposal of the waste oil.
  • a special application The invention is that the use with the waste oil from the oil manufacturer is withdrawn, which exchanges the old oil for new oil and the Provides new use. This type of application allows recycling of waste oil and multiple uses of the inserts, similar to the principle of Deposit bottle.
  • the use in the cylinder head the associated internal combustion engine Generally is this area of the engine block is particularly easily accessible, making a change of use can be done easily. Since the use of the stock for the Lubricant represents and the cylinder head is generally in the top area of the Internal combustion engine, the oil must pass through the lubrication oil circuit Circulation pump can be pumped into the insert. This can be done in the lubricating oil circuit a lubricating oil collecting point can be provided in the lowest area which pumps the lubricating oil into the insert from the circulation pump. The pump can can be controlled by appropriate sensors.
  • the insert can be placed at the lowest point in the oil circuit. In this case, it replaces the oil pan, which according to the prior art Collecting the oil is provided. If the internal combustion engine is not used, it runs the oil in the insert together. This has the advantage that when changing the Most of the used oil can be replaced. All impurities of the lubricating oil that normally accumulates at the bottom of the oil pan would remain in use with this principle and are therefore also replaced. The new insert is completely free of contamination.
  • Useful embodiments of the invention result if further functional elements of the oil circuit can be integrated into the insert.
  • the pump for circulating the lubricating oil and for generating a supply pressure at the lubrication points an oil wear sensor that the need indicates a change of use
  • a filter element for cleaning the lubricating oil or an oil centrifuge which is also suitable for cleaning the lubricating oil.
  • the lifespan of the individual functional elements can be coordinated so that all functional elements are used up when changing the filter insert. This applies in particular to the filter element and the lubricating oil.
  • functional elements such as the centrifuge and the pump are matched to the service life of the insert. These are then together with the filter element and the oil wear sensor provided.
  • Another option is to store a reservoir for oil additives, those during the life cycle of the oil continuously or at defined intervals can be supplied. These can significantly increase the life of the lubricating oil extend or the required properties of the lubricating oil constant hold.
  • the insert can use further connections have.
  • this enables a stronger branching of the oil circuit achieve, which is attached to the insert by several connections to others may have different connections for the components installed in the insert be necessary, e.g. B. could be an electrical connection for the operation of a electrical circulation pump integrated in the insert.
  • FIG. 1 An internal combustion engine 10 according to FIG. 1 is shown as an outline. In particular are a cylinder head cover 11 and a floor pan 12 as separate areas the internal combustion engine recognizable. Inserts 13 a, b create a supply 14 Lube oil for the internal combustion engine is available. The insert 13a is with the help fastened by fastening means 15 on the cylinder head cover 11. It has connections 16 for an indicated lubricating oil circuit, consisting of a line system 17 on.
  • the cylinder head cover 11 forms a receptacle 18 for the insert 13a.
  • an installation opening 19 which here in particular by a Drawer 20 is closed, the drawer insert 13b in the floor pan 12 of the internal combustion engine.
  • the connections 16 are automatically connected to the connections 21 in the internal combustion engine.
  • the connections 21 belong to the line system 17 of the internal combustion engine and are in the If the insert 13b is removed, it is closed by valves 22.
  • a filter element 23 is arranged.
  • a flat filter element preferably comes in question, but a round filter cartridge can also be installed.
  • FIG. 1 The schematic structure of an insert 13a is shown in FIG.
  • the two Connections 16 are not used for introducing and discharging the lubricating oil into the shown lubricating oil circuit.
  • valves 24 are arranged, which are removed from a Prevent oil leakage.
  • the insert has a mounting flange 25 on the attachment of the insert z. B. on the cylinder head of an internal combustion engine enables.
  • the heart of the application is the supply 14 of lubricating oil. However, there are more Functional elements integrated in the insert.
  • a feed pump 26 is to be mentioned here first, which has electrical connections 27 is provided. Furthermore, a filter element 23 is provided, through which the Pass lubricating oil through the lubricating oil circuit, not shown, after it has passed got to. One is in the bypass flow and connected via an additional valve 28 Free jet centrifuge 29, through which a partial flow of the fluid frees the smallest particles can be. There is also a reservoir provided with a feed valve 30 31 provided for lubricant additives.
  • Various sensors are provided on the outside of the insert. It is conceivable, for. B. the arrangement of a wear sensor S1 for the filter element and a contamination sensor S2 for the lubricating oil.
  • a viewing window 32 can also be provided be, which provides information about the fill level of the reservoir 31.
  • At the A label 33 is also attached to the outside of the insert.

Abstract

The circuit incorporates an oil reservoir (14) and a feed pipe system. The reservoir is integrated in an insert (13a), which is positioned replaceable in a holder and forms part of the oil circuit. The insert is fitted through an opening, and this is closed after assembly. Insert and pipe system have connected oil connections (16). These contain valves (24), which are closed when the insert is separated from the circuit. The insert is located in the cylinder head of an IC engine.

Description

Stand der TechnikState of the art

Die Erfindung betrifft einen Ölkreislauf für eine Arbeitsmaschine, insbesondere eine Brennkraftmaschine nach der Gattung des Patentanspruches 1.The invention relates to an oil circuit for a work machine, in particular a Internal combustion engine according to the preamble of claim 1.

Derartige Ölkreisläufe werden gemäß dem Stand der Technik in den Motorblock der Brennkraftmaschine zumindest teilweise integriert. Insbesondere die Ölauffangwanne, welche einen Vorrat für das Schmieröl bildet, ist im unteren Bereich des Motorblockes angebracht. Sie steht in direkter Verbindung mit dem Kurbelgehäuse, wobei sich das Schmieröl dort sammelt, um mit Hilfe einer Pumpe von neuem an die zu schmierenden Stellen der Brennkraftmaschine gefördert zu werden.Such oil circuits are according to the prior art in the engine block Internal combustion engine at least partially integrated. In particular the oil pan, which forms a supply for the lubricating oil is in the lower area of the engine block appropriate. It is in direct connection with the crankcase, whereby the lubricating oil gathers there to be pumped up again lubricating points of the internal combustion engine to be promoted.

Es besteht nun ein Bestreben, den für den Ölkreislauf anfallenden konstruktiven Aufwand möglichst gering zu halten. Dies läßt sich dadurch erreichen, daß die für den Ölkreislauf notwendigen Komponenten in den Motorblock integriert werden. Zum Beispiel wird gemäß der DE 198 33 974 A1 vorgeschlagen, das Ölfilter als Flachfilter auszuführen und in eine dafür vorgesehene Aufnahme in der Ölwanne einzusetzen. Eine andere Möglichkeit besteht darin, die Ölpumpe für den Ölvorrat in die Ölwanne zu integrieren, wie dies gemäß der DE 196 44 645 A1 vorgeschlagen wird.There is now an endeavor to achieve the design effort required for the oil circuit to keep as low as possible. This can be achieved in that for the Components necessary for the oil circuit are integrated in the engine block. To the Example is proposed according to DE 198 33 974 A1, the oil filter as a flat filter to be carried out and to be inserted into a designated receptacle in the oil pan. Another option is to put the oil pump in the oil pan for the oil supply to integrate, as is proposed according to DE 196 44 645 A1.

Diese Maßnahmen sind dazu geeignet, den konstruktiven Aufwand für die Brennkraftmaschine und somit die Fertigungs- und Montagekosten herabzusetzen. Die Betriebskosten lassen sich dadurch jedoch nicht verringern. Hier kann lediglich Einfluß genommen werden, indem durch die gewählte Ölqualität und die Filterstandzeiten möglichst lange Wartungsintervalle angestrebt werden. Die Wartung selbst gestaltet sich schwierig, die verbrauchten Filterelemente müssen ausgebaut sowie das alte Schmieröl abgelassen werden. Dabei besteht die Gefahr einer Verschmutzung der Umwelt durch versehentlich austretendes Öl. Außerdem müssen die ausgedienten Filterelemente sowie das Altöl einer fachgerechten Entsorgung zugeführt werden.These measures are suitable for reducing the design effort for the internal combustion engine and thus reduce the manufacturing and assembly costs. The However, this does not reduce operating costs. Here can only Be influenced by the selected oil quality and the filter service life longest possible maintenance intervals. The maintenance itself is difficult, the used filter elements must be removed as well the old lubricating oil can be drained. There is a risk of contamination the environment due to oil accidentally escaping. In addition, the disused Filter elements and used oil are disposed of properly become.

Aufgabe der Erfindung ist es daher, einen Ölkreislauf zu schaffen, der neben geringen Fertigungs- und Montagekosten auch im Betrieb geringe Kosten verursacht und eine einfache sowie zuverlässige Wartung ermöglicht. Diese Aufgabe wird durch die Merkmale des Patentanspruches 1 gelöst.The object of the invention is therefore to provide an oil circuit which, in addition to low Manufacturing and assembly costs also cause low costs in operation and enables simple and reliable maintenance. This task is accomplished by the Features of claim 1 solved.

Vorteile der ErfindungAdvantages of the invention

Der erfindungsgemäße Ölkreislauf besteht zumindest aus einem Leitungssystem zur Förderung des Öls zu den Schmierstellen und einem Vorrat für das Öl, aus dem das Leitungssystem gespeist wird. Außerdem läuft das Öl, wenn es nicht zur Schmierung benötigt wird, in diesem Vorrat zusammen. Der erfindungsgemäße Ölkreislauf ist dadurch gekennzeichnet, daß dieser Vorrat Teil eines Einsatzes ist, der auswechselbar in einer Aufnahme der Arbeitsmaschine angeordnet ist. Der Einsatz bildet damit einen Teil des Ölkreislaufes und kann zwecks eines Wechsels des Schmieröls unproblematisch gegen einen neuen Einsatz vertauscht werden. Die Aufnahmen für den Einsatz können zum Beispiel an der Arbeitsmaschine vorgesehen sein, die den Ölkreislauf enthält. Das Auswechseln erfolgt dann auf einfache Weise durch Lösen der mit der Aufnahme verbundenen Befestigung des Einsatzes.The oil circuit according to the invention consists of at least one line system Convey the oil to the lubrication points and a reservoir for the oil from which the Line system is fed. The oil also runs when it is not for lubrication is needed in this stock together. The oil circuit according to the invention is thereby characterized in that this stock is part of an insert that is interchangeable is arranged in a receptacle of the working machine. The stake is one Part of the oil circuit and can easily be used to change the lubricating oil be exchanged for a new assignment. The recordings for the use can be provided, for example, on the working machine that the Contains oil circuit. The replacement is then done simply by loosening the attachment of the insert associated with the receptacle.

Der Einsatz kann an die Arbeitsmaschine bzw. den Ölkreislauf angesetzt werden, wobei die Aufnahme z. B. aus einer Bajonettverbindung besteht, oder es wird gemäß einer anderen Ausgestaltung der Erfindung eine Einbauöffnung vorgesehen, die zum Einbau des Einsatzes geöffnet und anschließend geschlossen werden kann. Für den Einsatz kann zum Beispiel eine schubladenartige Aufnahme vorgesehen sein, die das Handling beim Auswechseln des Einsatzes erleichtert. Der Deckel der Einbauöffnung führt weiterhin zu einer höheren Zuverlässigkeit des Ölkreislaufes im Betrieb, weil über den Deckel eine zusätzliche Abdichtung erzeugt werden kann. The insert can be attached to the machine or the oil circuit, where the recording z. B. consists of a bayonet connection, or it is according to another embodiment of the invention, an installation opening is provided for Installation of the insert can be opened and then closed. For the For example, a drawer-like receptacle can be used handling when replacing the insert is easier. The cover of the installation opening leads to a higher reliability of the oil circuit in operation, because an additional seal can be created via the lid.

Gemäß einer sinnvollen Ausbildung des Erfindungsgedankens weist der Einsatz und das Leitungssystem des Ölkreislaufes Anschlüsse auf, die beim Einbau des Einsatzes miteinander verbunden werden. Dies kann durch gesondertes Ansetzen des Leitungssystems (zum Beispiel Schläuche) erfolgen, oder die Anschlüsse werden derart in den Einsatz integriert, daß dieser automatisch mit dem Leitungssystem durch Einsetzen in die Aufnahme verbunden wird. Alternativ zu den Anschlüssen kann der Einsatz auch offen ausgeführt sein, so daß die Anschlüsse des Leitungssystems in diesen hineinreichen. Der Einsatz selbst weist dann keine Anschlüsse auf.According to a sensible development of the inventive concept, the use and the pipe system of the oil circuit connections that are used when installing the insert be connected to each other. This can be done by setting the Line system (for example, hoses), or the connections integrated into the insert in such a way that it automatically connects to the line system is connected by insertion into the receptacle. As an alternative to the connections the insert can also be open, so that the connections of the line system reach into this. The insert itself then has no connections on.

Eine besonders zuverlässige Variante der Erfindung hinsichtlich der Wartung ergibt sich, wenn die Anschlüsse Ventile aufweisen, die im Falle eines Trennen des Einsatzes vom Ölkreislauf geschlossen werden. Dies kann manuell erfolgen oder automatisch durch eine entsprechende Anbindung der Ventile an die Anschlüsse. Beim Trennen des Einsatzes vom Ölkreislauf werden vorteilhafterweise somit alle Öffnungen, durch die Öl in die Umgebung austreten könnte, geschlossen. Der Wechsel des Einsatzes wird dadurch besonders sicher und kann auch von ungeschultem Personal durchgeführt werden.A particularly reliable variant of the invention in terms of maintenance results if the connections have valves in the event of a disconnection of the insert be closed by the oil circuit. This can be done manually or automatically by a corresponding connection of the valves to the connections. At the Disconnecting the insert from the oil circuit advantageously all openings, through which oil could escape into the environment. The change of This makes use particularly safe and can also be done by untrained personnel be performed.

Der ausgewechselte Einsatz ergibt für sich ein abgeschlossenes System und kann zur Entsorgung des Altöls als Ganzes weggegeben werden. Eine besondere Anwendung der Erfindung besteht darin, daß der Einsatz mit dem Altöl von dem Ölhersteller zurückgenommen wird, wobei dieser das Altöl gegen neues Öl auswechselt und den Einsatz von neuem zur Verfügung stellt. Diese Art der Anwendung erlaubt ein Recycling des Altöls und eine Mehrfachverwendung der Einsätze, ähnlich dem Prinzip der Pfandflasche.The replaced insert results in a closed system and can be disposed of as a whole for the disposal of the waste oil. A special application The invention is that the use with the waste oil from the oil manufacturer is withdrawn, which exchanges the old oil for new oil and the Provides new use. This type of application allows recycling of waste oil and multiple uses of the inserts, similar to the principle of Deposit bottle.

Gemäß einer besonderen Ausgestaltung der Erfindung kann der Einsatz im Zylinderkopf der zugehörigen Brennkraftmaschine untergebracht sein. Im allgemeinen ist dieser Bereich des Motorblocks besonders leicht zugänglich, wodurch ein Wechsel des Einsatzes einfach erfolgen kann. Da der Einsatz gleichzeitig den Vorrat für das Schmieröl darstellt und sich der Zylinderkopf im allgemeinen im obersten Bereich der Brennkraftmaschine befindet, muß das Öl durch die für den Schmierölkreislauf vorgesehene Umwälzpumpe in den Einsatz gepumpt werden. Hierfür kann im Schmierölkreislauf im untersten Bereich eine Schmierölsammelstelle vorgesehen sein, von der aus die Umwälzpumpe das Schmieröl in den Einsatz pumpt. Die Pumpe kann durch eine entsprechende Sensorik angesteuert werden.According to a special embodiment of the invention, the use in the cylinder head the associated internal combustion engine. Generally is this area of the engine block is particularly easily accessible, making a change of use can be done easily. Since the use of the stock for the Lubricant represents and the cylinder head is generally in the top area of the Internal combustion engine, the oil must pass through the lubrication oil circuit Circulation pump can be pumped into the insert. This can be done in the lubricating oil circuit a lubricating oil collecting point can be provided in the lowest area which pumps the lubricating oil into the insert from the circulation pump. The pump can can be controlled by appropriate sensors.

Alternativ kann der Einsatz an der tiefsten Stelle des Ölkreislaufs untergebracht werden. In diesem Fall ersetzt er die Ölwanne, die gemäß dem Stand der Technik zum Sammeln des Öls vorgesehen ist. Wird die Brennkraftmaschine nicht benutzt, so läuft das Öl in dem Einsatz zusammen. Dies hat den Vorteil, daß bei einem Wechsel des Einsatzes der größte Teil des Altöls ausgewechselt werden kann. Alle Verunreinigungen des Schmieröls, welche sich normalerweise am Boden der Ölwanne sammeln würden, verbleiben bei diesem Prinzip im Einsatz und werden daher mit ausgewechselt. Der neue Einsatz ist vollständig von Verunreinigungen frei.Alternatively, the insert can be placed at the lowest point in the oil circuit. In this case, it replaces the oil pan, which according to the prior art Collecting the oil is provided. If the internal combustion engine is not used, it runs the oil in the insert together. This has the advantage that when changing the Most of the used oil can be replaced. All impurities of the lubricating oil that normally accumulates at the bottom of the oil pan would remain in use with this principle and are therefore also replaced. The new insert is completely free of contamination.

Sinnvolle Ausgestaltungen der Erfindung ergeben sich, wenn weitere Funktionselemente des Ölkreislaufes in den Einsatz integriert werden. Hier bieten sich insbesondere an: die Pumpe zur Umwälzung des Schmieröls und zur Erzeugung eines Versorgungsdruckes an den Schmierstellen, ein Ölverschleißsensor, der die Notwendigkeit eines Einsatzwechsels anzeigt, ein Filterelement zur Reinigung des Schmieröls oder eine Ölzentrifuge, die ebenfalls zur Reinigung des Schmieröls geeignet ist. Außerdem können auch für die Beladung der Zentrifuge bzw. für den Verschleiß des Filtermediums Sensoren angebracht sein. Die Lebensdauer der einzelnen Funktionselemente kann aufeinander abgestimmt werden, so daß alle Funktionselemente bei einem Wechsel des Filtereinsatzes verbraucht sind. Dies gilt insbesondere für das Filterelement und das Schmieröl. Allerdings können auch Funktionselemente wie die Zentrifuge sowie die Pumpe auf die Lebensdauer des Einsatzes abgestimmt werden. Diese werden dann zusammen mit dem Filterelement und dem Ölverschleißsensor versorgt.Useful embodiments of the invention result if further functional elements of the oil circuit can be integrated into the insert. Here in particular offer on: the pump for circulating the lubricating oil and for generating a supply pressure at the lubrication points, an oil wear sensor that the need indicates a change of use, a filter element for cleaning the lubricating oil or an oil centrifuge, which is also suitable for cleaning the lubricating oil. Moreover can also be used to load the centrifuge or to wear the Filter medium sensors may be attached. The lifespan of the individual functional elements can be coordinated so that all functional elements are used up when changing the filter insert. This applies in particular to the filter element and the lubricating oil. However, functional elements such as the centrifuge and the pump are matched to the service life of the insert. These are then together with the filter element and the oil wear sensor provided.

Eine andere Möglichkeit, die allerdings nur bei einer Rücknahme und Neubefüllung der Einsätze durch den Hersteller einen Sinn ergibt, besteht darin, die Pumpe oder auch die Zentrifuge für mehrere Lebenszyklen der Filtereinsätze bzw. des Schmieröls auszulegen. Diese Bauteile werden dadurch teurer, können dafür aber länger eingesetzt werden. Insbesondere besteht durch die Unterbringung von Pumpe oder Zentrifuge die Möglichkeit, diese beim Wechseln des Öls zu säubern, wodurch deren Lebensdauer noch gesteigert werden kann.Another possibility, however, only with a return and refill The inserts made by the manufacturer make sense is the pump or also the centrifuge for several life cycles of the filter inserts or the lubricating oil to interpret. This makes these components more expensive, but they can be used for longer become. In particular, there is a housing for the pump or centrifuge the ability to clean them when changing the oil, thereby increasing their lifespan can still be increased.

Eine weitere Möglichkeit besteht in der Unterbringung eines Reservoirs für Öladditive, die während des Lebenszyklus des Öls kontinuierlich oder in definierten Abständen zugeführt werden können. Diese können die Lebensdauer des Schmieröls beträchtlich verlängern bzw. die geforderten Eigenschaften des Schmieröls konstant halten.Another option is to store a reservoir for oil additives, those during the life cycle of the oil continuously or at defined intervals can be supplied. These can significantly increase the life of the lubricating oil extend or the required properties of the lubricating oil constant hold.

Der Einsatz kann gemäß einer weiteren Ausgestaltung der Erfindung weitere Anschlüsse besitzen. Hierdurch läßt sich zum einen eine stärkere Verzweigung des Ölkreislaufs erzielen, der durch mehrere Anschlüsse am Einsatz befestigt wird, zum anderen können andersartige Anschlüsse für die in den Einsatz eingebauten Komponenten notwendig sein, z. B. könnte ein elektrischer Anschluß für den Betrieb einer elektrischen, in den Einsatz integrierten Umwälzpumpe vorgesehen werden.According to a further embodiment of the invention, the insert can use further connections have. On the one hand, this enables a stronger branching of the oil circuit achieve, which is attached to the insert by several connections to others may have different connections for the components installed in the insert be necessary, e.g. B. could be an electrical connection for the operation of a electrical circulation pump integrated in the insert.

Es ist vorteilhaft, Einsätze unterschiedlicher Ausstattungsvarianten auch unterschiedlich zu kennzeichnen. Hierdurch läßt sich die Gefahr vermindern, daß versehentlich falsche Einsätze eingebaut werden. Dies ist besonders dann notwendig, wenn die Anschlußmaße der Einsätze übereinstimmen, jedoch Ölfüllungen unterschiedlicher Qualität verwendet werden. Zum Beispiel könnten die für Dieselmaschinen eingesetzten Einsätze von denen für Ottomotoren unterschieden werden.It is advantageous to use different types of equipment differently to mark. This can reduce the risk of accidentally wrong inserts are installed. This is particularly necessary if the The connection dimensions of the inserts match, but the oil fillings differ Quality can be used. For example, those used for diesel engines Applications are differentiated from those for gasoline engines.

Diese und weitere Merkmale von bevorzugten Weiterbildungen der Erfindung gehen außer aus den Ansprüchen auch aus der Beschreibung und den Zeichnungen hervor, wobei die einzelnen Merkmale jeweils für sich allein oder zu mehreren in Form von Unterkombinationen bei der Ausführungsform der Erfindung und auf anderen Gebieten verwirklicht sein und vorteilhafte sowie für sich schutzfähige Ausführungen darstellen können, für die hier Schutz beansprucht wird.These and other features of preferred developments of the invention go not only from the claims but also from the description and the drawings, the individual features each individually or in groups in the form of sub-combinations in the embodiment of the invention and on others Areas to be realized and advantageous as well as protectable designs can represent, for which protection is claimed here.

Zeichnungdrawing

Weitere Einzelheiten der Erfindung werden in den Zeichnungen anhand von schematischen Ausführungsbeispielen beschrieben. Hierbei zeigen

Figur 1
eine schematisch dargestellte Brennkraftmaschine mit unterschiedlichen möglichen Einbauorten für den erfindungsgemäßen Einsatz und
Figur 2
den schematischen Aufbau eines Einsatzes.
Further details of the invention are described in the drawings using schematic exemplary embodiments. Show here
Figure 1
a schematically illustrated internal combustion engine with different possible installation locations for the use according to the invention and
Figure 2
the schematic structure of an insert.

Beschreibung der AusführungsbeispieleDescription of the embodiments

Eine Brennkraftmaschine 10 gemäß Figur 1 ist als Umriß dargestellt. Insbesondere sind ein Zylinderkopfdeckel 11 und eine Bodenwanne 12 als gesonderte Bereiche der Brennkraftmaschine erkennbar. Einsätze 13 a, b stellen einen Vorrat 14 an Schmieröl für die Brennkraftmaschine zur Verfügung. Der Einsatz 13a ist mit Hilfe von Befestigungsmitteln 15 auf dem Zylinderkopfdeckel 11 befestigt. Er weist Anschlüsse 16 für einen angedeuteten Schmierölkreislauf, bestehend aus einem Leitungssystem 17 auf.An internal combustion engine 10 according to FIG. 1 is shown as an outline. In particular are a cylinder head cover 11 and a floor pan 12 as separate areas the internal combustion engine recognizable. Inserts 13 a, b create a supply 14 Lube oil for the internal combustion engine is available. The insert 13a is with the help fastened by fastening means 15 on the cylinder head cover 11. It has connections 16 for an indicated lubricating oil circuit, consisting of a line system 17 on.

Der Zylinderkopfdeckel 11 bildet eine Aufnahme 18 für den Einsatz 13a. Alternativ kann eine Einbauöffnung 19 vorgesehen werden, die hier insbesondere durch eine Schublade 20 verschlossen wird, wobei die Schublade den Einsatz 13b in der Bodenwanne 12 der Brennkraftmaschine aufnimmt. Die Anschlüsse 16 werden dabei automatisch mit den Anschlüssen 21 in der Brennkraftmaschine verbunden. Die Anschlüsse 21 gehören zum Leitungssystem 17 der Brennkraftmaschine und werden im Falle eines Ausbaus des Einsatzes 13b durch Ventile 22 verschlossen. Im Einsatz 13b ist ein Filterelement 23 angeordnet. Es kommt bevorzugt ein Flachfilterelement in Frage, es kann jedoch auch eine Rundfilterpatrone eingebaut werden.The cylinder head cover 11 forms a receptacle 18 for the insert 13a. Alternatively can be provided an installation opening 19, which here in particular by a Drawer 20 is closed, the drawer insert 13b in the floor pan 12 of the internal combustion engine. The connections 16 are automatically connected to the connections 21 in the internal combustion engine. The connections 21 belong to the line system 17 of the internal combustion engine and are in the If the insert 13b is removed, it is closed by valves 22. In action 13b, a filter element 23 is arranged. A flat filter element preferably comes in question, but a round filter cartridge can also be installed.

Der schematische Aufbau eines Einsatzes 13a ist in Figur 2 dargestellt. Die beiden Anschlüsse 16 dienen zur Einleitung und Ausleitung des Schmieröls in den nicht dargestellten Schmierölkreislauf. Hier sind Ventile 24 angeordnet, die bei einem ausgebauten Einsatz einen Ölverlust verhindern. Der Einsatz weist einen Befestigungsflansch 25 auf, der die Anbringung des Einsatzes z. B. am Zylinderkopf einer Brennkraftmaschine ermöglicht.The schematic structure of an insert 13a is shown in FIG. The two Connections 16 are not used for introducing and discharging the lubricating oil into the shown lubricating oil circuit. Here valves 24 are arranged, which are removed from a Prevent oil leakage. The insert has a mounting flange 25 on the attachment of the insert z. B. on the cylinder head of an internal combustion engine enables.

Herzstück des Einsatzes ist der Vorrat 14 an Schmieröl. Allerdings sind noch weitere Funktionselemente in den Einsatz integriert.The heart of the application is the supply 14 of lubricating oil. However, there are more Functional elements integrated in the insert.

Hier ist zunächst eine Förderpumpe 26 zu nennen, die mit elektrischen Anschlüssen 27 versehen ist. Weiterhin ist ein Filterelement 23 vorgesehen, durch welches das Schmieröl nach Durchlauf durch den nicht dargestellten Schmierölkreislauf durchtreten muß. Im Nebenstrom und über ein Zusatzventil 28 geschaltet befindet sich eine Freistrahlzentrifuge 29, über die ein Teilstrom des Fluids von kleinsten Partikeln befreit werden kann. Außerdem ist ein mit einem Zuführventil 30 versehenes Reservoir 31 für Schmiermitteladditive vorgesehen.A feed pump 26 is to be mentioned here first, which has electrical connections 27 is provided. Furthermore, a filter element 23 is provided, through which the Pass lubricating oil through the lubricating oil circuit, not shown, after it has passed got to. One is in the bypass flow and connected via an additional valve 28 Free jet centrifuge 29, through which a partial flow of the fluid frees the smallest particles can be. There is also a reservoir provided with a feed valve 30 31 provided for lubricant additives.

Am Äußeren des Einsatzes sind verschiedene Sensoren vorgesehen. Denkbar ist z. B. die Anordnung eines Verschleißsensors S1 für das Filterelement sowie eines Verschmutzungssensors S2 für das Schmieröl. Weiterhin kann ein Sichtfenster 32 vorgesehen werden, welches über den Füllstand des Reservoirs 31 Auskunft gibt. Am Äußeren des Einsatzes ist außerdem eine Kennzeichnung 33 angebracht.Various sensors are provided on the outside of the insert. It is conceivable, for. B. the arrangement of a wear sensor S1 for the filter element and a contamination sensor S2 for the lubricating oil. A viewing window 32 can also be provided be, which provides information about the fill level of the reservoir 31. At the A label 33 is also attached to the outside of the insert.

Claims (9)

Ölkreislauf für eine Arbeitsmaschine, insbesondere eine Brennkraftmaschine, enthaltend einen Vorrat (14) für das Öl und ein Leitungssystem (17) zur Förderung des Öls zu Schmierstellen, dadurch gekennzeichnet, daß der Vorrat in einen Einsatz (13a, b) integriert ist, der auswechselbar in einer Aufnahme (18) angeordnet ist und einen Teil des Ölkreislaufes bildet.Oil circuit for a working machine, in particular an internal combustion engine, containing a reservoir (14) for the oil and a line system (17) for conveying the oil to lubrication points, characterized in that the reservoir is integrated in an insert (13a, b) which is exchangeable is arranged in a receptacle (18) and forms part of the oil circuit. Ölkreislauf nach Anspruch 1, dadurch gekennzeichnet, daß für den Einsatz (13a, b) eine Einbauöffnung (19) vorgesehen ist, die nach dem Einbau des Einsatzes geschlossen werden kann.Oil circuit according to claim 1, characterized in that an installation opening (19) is provided for the insert (13a, b) which can be closed after the installation of the insert. Ölkreislauf nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, daß der Einsatz und das Leitungssystem (17) Anschlüsse (16, 21) für das Öl aufweist aufweist, die miteinander verbunden sind.Oil circuit according to one of the preceding claims, characterized in that the insert and the line system (17) have connections (16, 21) for the oil which are connected to one another. Ölkreislauf nach Anspruch 3, dadurch gekennzeichnet, daß die Anschlüsse (16, 21) Ventile (22, 24) aufweisen, die im Falle eines Trennens des Einsatzes (13a, b) vom Ölkreislauf geschlossen werden.Oil circuit according to Claim 3, characterized in that the connections (16, 21) have valves (22, 24) which are closed by the oil circuit when the insert (13a, b) is disconnected. Ölkreislauf nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, daß der Einsatz (13a, b) im Zylinderkopf der zugehörigen Brennkraftmaschine untergebracht ist.Oil circuit according to one of the preceding claims, characterized in that the insert (13a, b) is accommodated in the cylinder head of the associated internal combustion engine. Ölkreislauf nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Einsatz (13a, b) die tiefste Stelle des Ölkreislaufes bildet.Oil circuit according to one of claims 1 to 4, characterized in that the insert (13a, b) forms the lowest point of the oil circuit. Ölkreislauf nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, daß weitere Funktionselemente (23, 26, 29, 31) des Ölkreislaufes in den Einsatz integriert sind. Oil circuit according to one of the preceding claims, characterized in that further functional elements (23, 26, 29, 31) of the oil circuit are integrated in the insert. Ölkreislauf nach Anspruch 7, dadurch gekennzeichnet, daß für die Funktionselemente (23, 26, 29, 31) weitere Anschlüsse (27) am Einsatz (13a, b) und in der Aufnahme (18) vorgesehen sind.Oil circuit according to claim 7, characterized in that further connections (27) on the insert (13a, b) and in the receptacle (18) are provided for the functional elements (23, 26, 29, 31). Ölkreislauf nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, daß Einsätze unterschiedlicher Ausstattungsvarianten mit unterschiedliche Kennzeichnungen versehen sind.Oil circuit according to one of the preceding claims, characterized in that inserts of different equipment variants are provided with different labels.
EP00119083A 1999-10-08 2000-09-02 Lubrication circuit for a working machine Withdrawn EP1091098A1 (en)

Applications Claiming Priority (2)

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DE19948658 1999-10-08
DE19948658A DE19948658A1 (en) 1999-10-08 1999-10-08 Oil circuit for a work machine

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EP (1) EP1091098A1 (en)
JP (1) JP2001132424A (en)
DE (1) DE19948658A1 (en)

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JP2001132424A (en) 2001-05-15
US6374797B1 (en) 2002-04-23

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