EP1322841A1 - Ventilation device for a crankcase - Google Patents

Ventilation device for a crankcase

Info

Publication number
EP1322841A1
EP1322841A1 EP01969261A EP01969261A EP1322841A1 EP 1322841 A1 EP1322841 A1 EP 1322841A1 EP 01969261 A EP01969261 A EP 01969261A EP 01969261 A EP01969261 A EP 01969261A EP 1322841 A1 EP1322841 A1 EP 1322841A1
Authority
EP
European Patent Office
Prior art keywords
plate
plates
rotor
separator
ventilation device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP01969261A
Other languages
German (de)
French (fr)
Other versions
EP1322841B1 (en
Inventor
Hartmut Sauter
Pius Trautmann
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
Mahle Filtersysteme GmbH
Original Assignee
Mann and Hummel GmbH
Mahle Filtersysteme GmbH
Filterwerk Mann and Hummel GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Application filed by Mann and Hummel GmbH, Mahle Filtersysteme GmbH, Filterwerk Mann and Hummel GmbH filed Critical Mann and Hummel GmbH
Publication of EP1322841A1 publication Critical patent/EP1322841A1/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B04CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04BCENTRIFUGES
    • B04B5/00Other centrifuges
    • B04B5/12Centrifuges in which rotors other than bowls generate centrifugal effects in stationary containers
    • 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
    • F01M13/00Crankcase ventilating or breathing
    • F01M13/04Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B04CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04BCENTRIFUGES
    • B04B5/00Other centrifuges
    • B04B5/12Centrifuges in which rotors other than bowls generate centrifugal effects in stationary containers
    • B04B2005/125Centrifuges in which rotors other than bowls generate centrifugal effects in stationary containers the rotors comprising separating walls
    • 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
    • F01M13/00Crankcase ventilating or breathing
    • F01M13/04Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
    • F01M2013/0422Separating oil and gas with a centrifuge device

Definitions

  • the invention relates to a ventilation device for a crankcase of an internal combustion engine with the features of the preamble of claim 1.
  • the invention also relates to a method according to claim 15 and a use according to claim 17.
  • Such a ventilation device is known for example from DE 198 03 872 AI and has a centrifugal oil separator which has a mixture inlet for an oil-air mixture and an air outlet for clean air and an oil outlet for oil.
  • the centrifugal oil separator used in the known ventilation device has a rotatingly driven housing which has an outflow funnel which is oriented coaxially with the axis of rotation of the housing and which forms the air outlet coaxially with the axis of rotation. Radially between this outflow funnel and an outer housing wall, the mixture inlet is essentially annular. Baffles protrude into this mixture inlet and thereby force a multiple deflection of the flow of the Oil-air mixture. This deflection allows the oil to separate from the chicanes. The oil is transported to the outer walls of the rotating housing by the centrifugal forces. In these outer walls, several oil outlet holes are provided at suitable points through which the separated oil can escape from the housing. The clean air, cleaned of oil, exits the interior of the housing through the air outlet.
  • the clean air emerging from the centrifugal oil separator is usually fed to the intake tract of an internal combustion engine.
  • the clean air contain as little oil residue as possible.
  • the oil consumption of the internal combustion engine can be reduced, on the other hand, the emission behavior of the internal combustion engine can be improved.
  • a particularly high degree of purity for the clean air is desirable in order to avoid damage to the sensitive components and influence on the measured values.
  • the present invention deals with the problem of specifying an embodiment for a ventilation device of the type mentioned at the outset which enables particularly high-quality oil separation.
  • the invention is based on the general idea of designing the centrifugal oil separator as a plate separator. It has been shown that a particularly high-quality oil separation can be achieved with the aid of a plate separator, so that the clean air emerging from the plate separator contains no or only very small amounts of oil or oil mist.
  • the plate separator can preferably have a stator designed as a housing, in which a rotor is accommodated, which has a plurality of plates, which are arranged parallel to one another along the rotor axis and coaxial to the rotor axis. A gap is then formed in each case between two adjacent plates, which connects an annular space formed in the interior of the rotor with a space which surrounds the rotor in the interior of the housing.
  • the desired cleaning effect can be achieved for a given volume flow and a given pressure drop. It is clear that the cleaning effect also depends on the speed of the rotor.
  • the plates can form a plate block in which adjacent plates are fastened to one another, this plate block being connected in a rotationally fixed manner via its axial ends to a central rotor shaft of the rotor.
  • the plate block forms a one-piece assembly, which is attached to the rotor shaft as such. Accordingly, at least the plates which are arranged between the axially outer plates are not directly connected to the rotor shaft. The plate block is then connected to the rotor shaft via the two plates located axially on the outside. This design simplifies the manufacture of the plate separator, since all the plates are fixed to the rotor by fastening the plate block to the rotor shaft.
  • At least two adjacent plates can form a stack of plates which is made in one piece.
  • a stack of plates can be produced, for example, by an injection molding process.
  • the one-piece production of this stack of plates means that the associated plates are already firmly connected to one another, which means that additional fastening steps can be omitted.
  • a plate block can be formed by at least one stack of plates. Since the plates do not have to be attached to one another in a stack of plates, the production of the plate block is simplified. Another important advantage of this embodiment results when a plurality of stacks of plates form the respective plate block, since the number of plates in the plate block can then be varied particularly easily. For example, a stack of plates always includes five plates.
  • a plate block should have 15 plates in a first variant and 20 plates in a second variant. The number of plates depends, for example, on the volume flow to be cleaned. To produce the first variant, three stacks of plates are thus connected to one another. To form the second variant Accordingly, four stacks of plates are connected to each other. The additional effort for the formation of two different variants is minimal.
  • spacing elements in the direction of the rotor axis between adjacent plates, which produce the respective gap.
  • plates and spacer elements can thus be stacked on top of one another and connected to one another in one operation, for example by a welding process.
  • FIG. 1 shows a longitudinal section through a plate separator of a ventilation device according to the invention.
  • a ventilation device (not shown) has a plate separator 1, which has a stator 2 and a rotor 3.
  • the stator 2 can for example be attached to a crankcase of an internal combustion engine.
  • the rotor 3 is rotatably arranged in the stator 2, the stator 2 in the special embodiment shown here having corresponding radial bearings 4 and 5 with which a rotor shaft 6 of the rotor 3 is rotatably mounted on the stator 2.
  • the stator 2 forms a housing 7 in which the rotor 3 is arranged. In the interior of the housing 7, a space 8 is also formed, which surrounds the rotor 3.
  • the rotor 3 has a plurality of disks 9 which are arranged parallel to one another and coaxially to the rotor axis 19 along a rotor axis 19.
  • a gap 10 is formed between two adjacent plates 9. Each of these gaps 10 connects the space 8 lying radially outside with respect to the plates 9 with an annular space 11 lying radially inside with respect to the plates 9, which is formed inside the rotor 3 and extends coaxially to the rotor shaft 6.
  • This annular space 11 is connected to a first connection 12, while the space 8 is connected to a second connection 13 and to a third connection 14.
  • the annular space 11 opens directly on the low-pressure side of a compressor 15, which is designed here as a radial compressor.
  • a compressor wheel 16 of the compressor 15 is fixed in a rotationally fixed manner directly on the rotor shaft 6 of the plate separator 1. From the radially inner low-pressure side of the compressor wheel 16, the air provided there by the annular space 11 is conveyed radially outward within the compressor wheel 16, where it reaches a pressure chamber 17 of the compressor 15. This pressure chamber 17 is now connected to the first connection 12.
  • the compressor 15 serves on the one hand to substantially compensate for the pressure loss which inevitably occurs when the plate separator 1 flows through.
  • the compressor 15 can also be dimensioned such that it generates a pressure increase between the second connection 13 and the first connection 12, that is to say above the separator-compressor unit.
  • the first connection 12 serves as an air outlet for the clean air cleaned from the oil
  • the second connection 13 serves as a mixture inlet for the unpurified oil-air mixture.
  • the third connection 14 forms an oil outlet through which the separated or separated oil can be removed from the space 8. It is clear that in another embodiment, which is not equipped with the compressor 15, for example, the direction of flow of the plate separator 1 can also be reversed, so that the first connection 12 serves as a mixture inlet and the second connection 13 serves as an air outlet.
  • this second connection 13 is aligned axially parallel to the rotor axis 19, in another embodiment this second connection 13 can also be arranged inclined or transverse to the rotor axis 19, in particular radially to the rotor axis 19 or tangential to the housing 7.
  • Spacer elements 18 are arranged between adjacent plates 9, only a few of which are shown symbolically for the sake of clarity in FIG. 1. These spacer elements 18 are, for example, punctiform or spherical or in the form of webs. The spacer elements 18 keep the adjacent plates 9 at a distance in the direction of the rotor axis 19, as a result of which the gaps 10 can be defined. In a preferred embodiment, these spacer elements 18 are made in one piece with the plates 9. For example, each plate shows 9 on a top of the space 8 facing a plurality of such spacer elements 18, which are supported in the assembled state on the underside of the adjacent plate 9 facing the annular space 11.
  • the plates 9 are designed with the shape of a truncated cone-shaped sleeve, so that the surface line of the plates 9 runs inclined with respect to the rotor axis 19.
  • the surface lines of the plates 9 form an angle of approximately 45 ° with the rotor axis 19. It is clear that other angles up to 90 ° are also possible.
  • the horizontal lines shown in the annular space 11 show the radially inner inner edges of the plates 9 and the radially inner mouths of the gaps 10.
  • the stacked plates 9 are axially fixed between two holding elements 21 and 22, the contour of which cooperates with the plates 9 are shaped to be complementary to the respective axially outer plates 9. In this way, a gap 10 is also formed between the holding elements 21, 22 and the plate 9 supported therein. Correspondingly, 10 spacer elements 18 can also be arranged in these axially outer columns.
  • the holding elements 21 and 22 are fixed in a rotationally fixed manner on the rotor shaft 6.
  • the adjacent plates 9 are each fastened to one another, as a result of which all plates 9 are combined to form a uniform plate block 20.
  • the connection between the plates 9 can for example be made via the spacer elements 18 which, for. B. are welded to the adjacent plate 9. It is also possible for the plates 9 to be fastened to one another by means of special connecting webs or other connecting elements, but these are not shown here.
  • the unitary plate block 20 formed in this way can then be mounted on the rotor shaft 6 in a particularly simple manner, the plate block 20 also being fixed via the holding elements 21, 22.
  • each plate 9 is separately loaded on the rotor shaft 6. is fixed, for example, each plate 9 is positively attached to the rotor shaft 6.
  • a preferred embodiment 9 may be produced in one piece or integral multiple plates, which can be realized in particular by means of a plastic injection molding process'.
  • the plates 9 which are jointly produced in one body are referred to below as "stack of plates".
  • stamp of plates it is possible to produce all the plates 9 by means of an integral injection-molded part, so that the plate block 20 forms an integral stack of plates.
  • the Plate block 20 is constructed from a plurality of plate stacks, such a plate stack is identified by a curly bracket and designated by 23.
  • This plate stack 23 comprises, for example, three plates 9 which are integrally formed in one piece.
  • the manufacture of the plate separator 1 is simplified if different variants are to be made available for the plate separator 1.
  • the procedure for producing such a plate separator 1 is preferably as follows:
  • the particular application of the plate separator 1 or the venting device equipped with it specifies a volume flow which is to be cleaned of oil. Depending on this volume flow, the number of plates 9 with which the plate separator 1 must be equipped is determined in order to to be able to achieve the desired degree of purity.
  • the plate block 20 can then be assembled or assembled.
  • the plate stacks 23 are prefabricated, of which, for example, variants with a different number of plates can also be present.
  • the individual plate '9 or the individual stack of plates 23 are then connected to each other depending on the embodiment to be an easy manipulable unit, namely the block of plates 20, form.
  • the plates 9 or the plate block 20 are fixed between the holding elements 21 and 22 on the rotor shaft 6, additional fastening measures for connecting the plate block 20 to the holding elements 21, 22 being able to be provided.
  • the plate separator 1 is driven via its rotor shaft 6, it being possible in principle for any drive for the rotor shaft 6 to be suitable.
  • the rotor shaft 6 can be coupled to the crankshaft of the internal combustion engine, the crankcase of which is to be vented. It is also possible to couple the rotor shaft 6 with an oil centrifuge or with an electric motor.

Abstract

The invention relates in particular to a ventilation device for a crankcase of an internal combustion engine. Said device comprises a centrifugal oil separator, which has an inlet for an oil-air mixture, an air vent for the purified air and an oil outlet for the oil. To improve the operating efficiency of a ventilation device of this type, the centrifugal oil separator is configured as a disk separator.

Description

Entlüftungsvorrichtung für ein Kurbelgehäuse Ventilation device for a crankcase
Die Erfindung betrifft eine Entlüftungsvorrichtung für ein Kurbelgehäuse einer Brennkraftmaschine mit den Merkmalen des Oberbegriffs des Anspruchs 1. Die Erfindung betrifft außerdem ein Verfahren gemäß Anspruch 15 sowie eine Verwendung gemäß Anspruch 17.The invention relates to a ventilation device for a crankcase of an internal combustion engine with the features of the preamble of claim 1. The invention also relates to a method according to claim 15 and a use according to claim 17.
Eine derartige Entlüftungsvorrichtung ist beispielsweise aus der DE 198 03 872 AI bekannt und weist einen Zentrifugal- Ölabscheider auf, der einen Gemischeinlass für ein Öl-Luft- Gemisch und einen Luftauslass für Reinluft sowie einen Ölauslass für Öl aufweist.Such a ventilation device is known for example from DE 198 03 872 AI and has a centrifugal oil separator which has a mixture inlet for an oil-air mixture and an air outlet for clean air and an oil outlet for oil.
Der bei der bekannten Entlüftungsvorrichtung verwendete Zen- trifugal-Ölabscheider besitzt ein rotierend angetriebenes Gehäuse, das einen Ausströmtrichter aufweist, der koaxial zur Rotationsachse des Gehäuses orientiert ist und der den Luftauslass koaxial zur Drehachse bildet. Radial zwischen diesem Ausströmtrichter und einer außen liegenden Gehäusewand ist der Gemischeinlass im Wesentlichen ringförmig ausgebildet. In diesen Gemischeinlass ragen Schikanen ein und erzwingen dadurch eine mehrfache Umlenkung der Strömung des Öl-Luft-Gemisches. Durch diese Umlenkungen kann sich das Öl an den Schikanen abscheiden. Durch die Zentrifugalkräfte wird das Öl zu den Außenwänden des rotierenden Gehäuses transportiert. In diesen Außenwänden sind an geeigneten Stellen mehrere Ölauslassbohrungen vorgesehen, durch die das abgeschiedene Öl aus dem Gehäuse austreten kann. Die vom Öl gereinigte Reinlüft tritt durch den Luftauslass aus dem Inneren des Gehäuses aus.The centrifugal oil separator used in the known ventilation device has a rotatingly driven housing which has an outflow funnel which is oriented coaxially with the axis of rotation of the housing and which forms the air outlet coaxially with the axis of rotation. Radially between this outflow funnel and an outer housing wall, the mixture inlet is essentially annular. Baffles protrude into this mixture inlet and thereby force a multiple deflection of the flow of the Oil-air mixture. This deflection allows the oil to separate from the chicanes. The oil is transported to the outer walls of the rotating housing by the centrifugal forces. In these outer walls, several oil outlet holes are provided at suitable points through which the separated oil can escape from the housing. The clean air, cleaned of oil, exits the interior of the housing through the air outlet.
Üblicherweise wird die aus dem Zetrifugal-Ölabscheider austretende Reinluft dem Ansaugtrakt einer Brennkraftmaschine zugeleitet.' Dementsprechend besteht der Wunsch, dass die Reinluft möglichst wenig Ölrückstände enthält. Einerseits kann dadurch der Ölverbrauch der Brennkraftmaschine gesenkt werden, andererseits lässt sich dadurch das Emissionsverhalten der Brennkraftmaschine verbessern. Für moderne Kraft- stoff-Einspritzanlagen, die mit hochsensiblen Sensoren und Ventilen arbeiten, ist ein besonders hoher Reinheitsgrad für die Reinluft erwünscht, um Beschädigungen der empfindlichen Bauteile sowie Meßwertbeeinflussungen zu vermeiden.The clean air emerging from the centrifugal oil separator is usually fed to the intake tract of an internal combustion engine. ' Accordingly, there is a desire that the clean air contain as little oil residue as possible. On the one hand, the oil consumption of the internal combustion engine can be reduced, on the other hand, the emission behavior of the internal combustion engine can be improved. For modern fuel injection systems that work with highly sensitive sensors and valves, a particularly high degree of purity for the clean air is desirable in order to avoid damage to the sensitive components and influence on the measured values.
Die vorliegende Erfindung beschäftigt sich mit dem Problem, für eine Entlüftungsvorrichtung der eingangs genannten Art eine Ausführungsform anzugeben, die eine besonders hochwertige Ölabscheidung ermöglicht.The present invention deals with the problem of specifying an embodiment for a ventilation device of the type mentioned at the outset which enables particularly high-quality oil separation.
Dieses Problem wird erfindungsgemäß durch eine Entlüftungsvorrichtung mit den Merkmalen des Anspruchs 1 gelöst. Die Erfindung beruht auf dem allgemeinen Gedanken, den Zen- trifugal-Ölabscheider als Tellerseparator auszubilden. Es hat sich gezeigt, dass mit Hilfe eines Tellerseparators eine besonders hochwertige Ölabscheidung erzielt werden kann, so dass die aus dem Tellerseparator austretende Reinluft keine oder nur noch sehr geringe Öl- oder Ölnebel-Anteile enthält.This problem is solved according to the invention by a ventilation device with the features of claim 1. The invention is based on the general idea of designing the centrifugal oil separator as a plate separator. It has been shown that a particularly high-quality oil separation can be achieved with the aid of a plate separator, so that the clean air emerging from the plate separator contains no or only very small amounts of oil or oil mist.
Vorzugsweise kann der Tellerseparator einen als Gehäuse ausgebildeten Stator aufweisen, in dem ein Rotor untergebracht ist, der mehrere Teller aufweist, die entlang der Rotorachse parallel zueinander und koaxial zur Rotorachse angeordnet sind. Jeweils zwischen zwei benachbarten Tellern ist dann ein Spalt ausgebildet, der einen im Inneren des Rotors ausgebildeten Ringraum mit einem Raum verbindet, der im Inneren des Gehäuses den Rotor umgibt. Durch die Auswahl der Telleranzahl, der Spaltlänge und der Spaltbreite kann für einen vorgegebenen Volumenstrom und einen vorgegebenen Druckverlust die gewünschte Reinigungswirkung erzielt werden. Es ist klar, dass die Reinigungswirkung außerdem von der Drehzahl des Rotors abhängt.The plate separator can preferably have a stator designed as a housing, in which a rotor is accommodated, which has a plurality of plates, which are arranged parallel to one another along the rotor axis and coaxial to the rotor axis. A gap is then formed in each case between two adjacent plates, which connects an annular space formed in the interior of the rotor with a space which surrounds the rotor in the interior of the housing. By selecting the number of plates, the gap length and the gap width, the desired cleaning effect can be achieved for a given volume flow and a given pressure drop. It is clear that the cleaning effect also depends on the speed of the rotor.
Bei einer Weiterbildung können die Teller einen Tellerblock bilden, bei dem benachbarte Teller aneinander befestigt sind, wobei dieser Tellerblock über seine axialen Enden mit einer zentralen Rotorwelle des Rotors drehfest verbunden ist. Bei dieser Ausführungsform bildet der Tellerblock eine einteilige Baugruppe, die als solche an der Rotorwelle befestigt wird. Dementsprechend sind zumindest die Teller, die zwischen den axial äußeren Tellern angeordnet sind, nicht direkt mit der Rotorwelle verbunden. Die Anbindung des Tellerblocks an die Rotorwelle erfolgt dann über die beiden axial außen liegenden Teller. Durch diese Bauweise lässt sich die Herstellung des Tellerseparators vereinfachen, da mit der Befestigung des Tellerblocks an der Rotorwelle sämtliche Teller rotorfest montiert sind.In a further development, the plates can form a plate block in which adjacent plates are fastened to one another, this plate block being connected in a rotationally fixed manner via its axial ends to a central rotor shaft of the rotor. In this embodiment, the plate block forms a one-piece assembly, which is attached to the rotor shaft as such. Accordingly, at least the plates which are arranged between the axially outer plates are not directly connected to the rotor shaft. The plate block is then connected to the rotor shaft via the two plates located axially on the outside. This design simplifies the manufacture of the plate separator, since all the plates are fixed to the rotor by fastening the plate block to the rotor shaft.
Bei einer Weiterbildung können wenigstens zwei benachbarte Teller einen Tellerstapel bilden, der einteilig hergestellt ist. Ein derartiger Tellerstapel kann beispielsweise durch ein Spritzgussverfahren hergestellt werden. Durch die einteilige Herstellung dieser Tellerstapel sind die zugehörigen Teller bereits miteinander fest verbunden, wodurch zusätzliche Befestigungsschritte entfallen können.In a further development, at least two adjacent plates can form a stack of plates which is made in one piece. Such a stack of plates can be produced, for example, by an injection molding process. The one-piece production of this stack of plates means that the associated plates are already firmly connected to one another, which means that additional fastening steps can be omitted.
Bei einer besonders vorteilhaften Ausführungsform kann ein Tellerblock durch mindestens einen Tellerstapel gebildet sein. Da die Teller bei einem Tellerstapel nicht aneinander befestigt werden müssen, vereinfacht sich die Herstellung des Tellerblocks. Ein weiterer wichtiger Vorteil dieser Ausführungsform ergibt sich dann, wenn mehrere Tellerstapel den jeweiligen Tellerblock bilden, da dann besonders einfach die Tellerzahl im Tellerblock variiert werden kann. Beispielsweise umfasst ein Tellerstapel stets fünf Teller. Ein Tellerblock soll bei einer ersten Variante 15 Teller und bei einer zweiten Variante 20 Teller besitzen. Die Tellerzahl hängt beispielsweise vom zu reinigenden Volumenstrom ab. Zur Herstellung der ersten Variante werden somit drei Tellerstapel miteinander verbunden. Zur Ausbildung der zweiten Vari- ante werden dementsprechend vier Tellerstapel miteinander verbunden. Der Mehraufwand zur Ausbildung von zwei verschiedenen Varianten ist dabei minimal.In a particularly advantageous embodiment, a plate block can be formed by at least one stack of plates. Since the plates do not have to be attached to one another in a stack of plates, the production of the plate block is simplified. Another important advantage of this embodiment results when a plurality of stacks of plates form the respective plate block, since the number of plates in the plate block can then be varied particularly easily. For example, a stack of plates always includes five plates. A plate block should have 15 plates in a first variant and 20 plates in a second variant. The number of plates depends, for example, on the volume flow to be cleaned. To produce the first variant, three stacks of plates are thus connected to one another. To form the second variant Accordingly, four stacks of plates are connected to each other. The additional effort for the formation of two different variants is minimal.
Um die Herstellung des Tellerseparators weiter zu vereinfachen, wird vorgeschlagen, in Richtung der Rotorachse zwischen benachbarten Tellern Distanzelemente anzuordnen, die den jeweiligen Spalt erzeugen. Zum Aufbau des Tellerblocks können somit Teller und Distanzelemente aufeinander gestapelt werden und in einem Arbeitsgang miteinander verbunden werden, beispielsweise durch ein Schweißverfahren.In order to further simplify the manufacture of the plate separator, it is proposed to arrange spacing elements in the direction of the rotor axis between adjacent plates, which produce the respective gap. To build up the plate block, plates and spacer elements can thus be stacked on top of one another and connected to one another in one operation, for example by a welding process.
Eine weitere Vereinfachung ergibt sich dann, wenn die Distanzelemente einteilig mit den jeweiligen Tellern hergestellt sind.A further simplification results when the spacer elements are made in one piece with the respective plates.
Das der Erfindung zugrunde liegende Problem wird außerdem durch ein Verfahren mit den Merkmalen des Anspruchs 15 gelöst. Durch diese Vorgehensweise ist der Wirkungsgrad des jeweiligen Tellerseparators durch die Telleranzahl an den vom Öl zu reinigenden Volumenstrom adaptiert.The problem underlying the invention is also solved by a method having the features of claim 15. This procedure means that the efficiency of the respective plate separator is adapted to the volume flow to be cleaned from the oil by the number of plates.
Außerdem wird das der Erfindung zugrunde liegende Problem durch eine Verwendung gemäß Anspruch 17 gelöst.In addition, the problem underlying the invention is solved by a use according to claim 17.
Weitere wichtige Vorteile und Merkmale der vorliegenden Erfindung ergeben sich aus den Unteransprüchen, aus den Zeichnungen und der zugehörigen Figurenbeschreibung anhand der Zeichnungen. Es versteht sich, dass die vorstehend genannten und die nachstehend noch zu erläuternden Merkmale nicht nur in der jeweils angegebenen Kombination, sondern auch in anderen Kombinationen oder in Alleinstellung verwendbar sind, ohne den Rahmen der vorliegenden Erfindung zu verlassen.Further important advantages and features of the present invention result from the subclaims, from the drawings and the associated description of the figures with reference to the drawings. It goes without saying that the features mentioned above and those yet to be explained below can be used not only in the combination indicated in each case, but also in other combinations or on their own without departing from the scope of the present invention.
Bevorzugte Ausführungsformen der Erfindung sind in der Zeichnung dargestellt und werden in der nachfolgenden Beschreibung näher erläutert.Preferred embodiments of the invention are shown in the drawing and are explained in more detail in the description below.
Die einzige' Fig. 1 zeigt einen Längsschnitt durch einen Tellerseparator einer erfindungsgemäßen Entlüftungsvorrichtung.1 shows a longitudinal section through a plate separator of a ventilation device according to the invention.
Entsprechend Fig. 1 weist eine im Übrigen nicht dargestellte Entlüftungsvorrichtung einen Tellerseparator 1 auf, der einen Stator 2 und einen Rotor 3 besitzt. Der Stator 2 kann beispielsweise an einem Kurbelgehäuse einer Brennkraftmaschine befestigt sein. Im Unterschied dazu ist der Rotor 3 im Stator 2 drehbar angeordnet, wobei der Stator 2 bei der hier dargestellten speziellen Ausführungsform entsprechende Radiallager 4 und 5 besitzt, mit denen eine Rotorwelle 6 des Rotors 3 am Stator 2 drehbar gelagert ist.According to FIG. 1, a ventilation device (not shown) has a plate separator 1, which has a stator 2 and a rotor 3. The stator 2 can for example be attached to a crankcase of an internal combustion engine. In contrast to this, the rotor 3 is rotatably arranged in the stator 2, the stator 2 in the special embodiment shown here having corresponding radial bearings 4 and 5 with which a rotor shaft 6 of the rotor 3 is rotatably mounted on the stator 2.
Der Stator 2 bildet ein Gehäuse 7, in dem der Rotor 3 angeordnet ist. Im Inneren des Gehäuses 7 ist außerdem ein Raum 8 ausgebildet, der den Rotor 3 umgibt. Der Rotor 3 weist mehrere Teller 9 auf, die entlang einer Rotorachse 19 parallel zueinander und koaxial zur Rotorachse 19 angeordnet sind. Dabei ist jeweils zwischen zwei benachbarten Tellern 9 ein Spalt 10 ausgebildet. Jeder dieser Spalte 10 verbindet den bezüglich der Teller 9 radial außen liegenden Raum 8 mit einem bezüglich der Teller 9 radial innen liegenden Ringraum 11, der im Inneren des Rotors 3 ausgebildet ist und sich koaxial zur Rotorwelle 6 erstreckt. Dieser Ringraum 11 ist mit einem ersten Anschluss 12 verbunden, während der Raum 8 mit einem zweiten Anschluss 13 und mit einem dritten Anschluss 14 verbunden ist.The stator 2 forms a housing 7 in which the rotor 3 is arranged. In the interior of the housing 7, a space 8 is also formed, which surrounds the rotor 3. The rotor 3 has a plurality of disks 9 which are arranged parallel to one another and coaxially to the rotor axis 19 along a rotor axis 19. In this case, a gap 10 is formed between two adjacent plates 9. Each of these gaps 10 connects the space 8 lying radially outside with respect to the plates 9 with an annular space 11 lying radially inside with respect to the plates 9, which is formed inside the rotor 3 and extends coaxially to the rotor shaft 6. This annular space 11 is connected to a first connection 12, while the space 8 is connected to a second connection 13 and to a third connection 14.
Bei der hier dargestellten speziellen Ausführungsform mündet der Ringraum 11 direkt an der Niederdruckseite eines Verdichters 15, der hier als Radialverdichter ausgebildet ist. Ein Verdichterrad 16 des Verdichters 15 ist direkt an der Rotorwelle 6 des Tellerseparators 1 drehfest fixiert. Von der radial innen liegenden Niederdruckseite des Verdichterrads 16 wird die dort vom Ringraum 11 bereitgestellte Luft innerhalb des Verdichterrads 16 radial nach außen befördert, wo sie in einen Druckraum 17 des Verdichters 15 gelangt. Dieser Druckraum 17 ist nun mit dem ersten Anschluss 12 verbunden. Der Verdichter 15 dient einerseits dazu, den Druckverlust, der bei der Durchströmung des Tellerseparators 1 zwangsläufig auftritt, im Wesentlichen auszugleichen. Andererseits kann der Verdichter 15 auch so dimensioniert werden, dass er einen Druckanstieg zwischen dem zweiten Anschluss 13 und dem ersten Anschluss 12, also über der Separator-Verdichter-Einheit, erzeugt. Bei der hier dargestellten Ausführungsform dient der erste Anschluss 12 als Luftaustritt für die vom Öl gereinigte Reinluft, während der zweite Anschluss 13 als Gemischeinlass für das ungereinigte Öl-Luft-Gemisch dient. Der dritte Anschluss 14 bildet einen Ölauslass, durch den das abgeschiedene bzw. separierte Öl aus dem Raum 8 abgeführt werden kann. Es ist klar, dass bei einer anderen Ausführungsform, die beispielsweise nicht mit dem Verdichter 15 ausgestattet ist, die Strömungsrichtung des Tellerseparators 1 auch umgekehrt sein kann, so dass der erste Anschluss 12 als Gemischeinlass - und der zweite Anschluss 13 als Luftauslass dient. Während in der hier dargestellten Ausführungsform der zweite Anschluss 13 achsparallel zur Rotorachse 19 ausgerichtet ist, kann dieser zweite Anschluss 13 bei einer anderen Ausführungsform auch geneigt oder quer zur Rotorachse 19, insbesondere radial zur Rotorachse 19 oder tangential zum Gehäuse 7 angeordnet sein.In the special embodiment shown here, the annular space 11 opens directly on the low-pressure side of a compressor 15, which is designed here as a radial compressor. A compressor wheel 16 of the compressor 15 is fixed in a rotationally fixed manner directly on the rotor shaft 6 of the plate separator 1. From the radially inner low-pressure side of the compressor wheel 16, the air provided there by the annular space 11 is conveyed radially outward within the compressor wheel 16, where it reaches a pressure chamber 17 of the compressor 15. This pressure chamber 17 is now connected to the first connection 12. The compressor 15 serves on the one hand to substantially compensate for the pressure loss which inevitably occurs when the plate separator 1 flows through. On the other hand, the compressor 15 can also be dimensioned such that it generates a pressure increase between the second connection 13 and the first connection 12, that is to say above the separator-compressor unit. In the embodiment shown here, the first connection 12 serves as an air outlet for the clean air cleaned from the oil, while the second connection 13 serves as a mixture inlet for the unpurified oil-air mixture. The third connection 14 forms an oil outlet through which the separated or separated oil can be removed from the space 8. It is clear that in another embodiment, which is not equipped with the compressor 15, for example, the direction of flow of the plate separator 1 can also be reversed, so that the first connection 12 serves as a mixture inlet and the second connection 13 serves as an air outlet. While in the embodiment shown here the second connection 13 is aligned axially parallel to the rotor axis 19, in another embodiment this second connection 13 can also be arranged inclined or transverse to the rotor axis 19, in particular radially to the rotor axis 19 or tangential to the housing 7.
Zwischen benachbarten Tellern 9 sind Distanzelemente 18 angeordnet, von denen zur Wahrung der Übersichtlichkeit in Fig. 1 jedoch nur einige symbolisch eingezeichnet sind. Diese Distanzelemente 18 sind beispielsweise punkt- oder kugelförmig oder in Form von Stegen ausgebildet. Durch die Distanzelemente 18 werden die benachbarten Teller 9 in Richtung der Rotorachse 19 auf Abstand gehalten, wodurch die Spalte 10 definiert werden können. Bei einer bevorzugten Ausführungsform sind diese Distanzelemente 18 einteilig mit den Tellern 9 hergestellt. Beispielsweise weist jeder Teller 9 auf einer dem Raum 8 zugewandten Oberseite mehrere derartige Distanzelemente 18 auf, die sich im zusammengebauten Zustand an der dem Ringraum 11 zugewandten Unterseite des benachbarten Tellers 9 abstützen.Spacer elements 18 are arranged between adjacent plates 9, only a few of which are shown symbolically for the sake of clarity in FIG. 1. These spacer elements 18 are, for example, punctiform or spherical or in the form of webs. The spacer elements 18 keep the adjacent plates 9 at a distance in the direction of the rotor axis 19, as a result of which the gaps 10 can be defined. In a preferred embodiment, these spacer elements 18 are made in one piece with the plates 9. For example, each plate shows 9 on a top of the space 8 facing a plurality of such spacer elements 18, which are supported in the assembled state on the underside of the adjacent plate 9 facing the annular space 11.
Bei der hier gezeigten Ausführungsform sind die Teller 9 mit der Gestalt einer kegelstumpfförmigen Hülse ausgebildet, so dass die Mantellinie der Teller 9 geneigt gegenüber der Rotorachse 19 verläuft. Im speziellen Beispiel schließen die Mantellinien der Teller 9 mit der Rotorachse 19 einen Winkel von etwa 45° ein. Es ist klar, dass auch andere Winkel bis 90° möglich' sind.In the embodiment shown here, the plates 9 are designed with the shape of a truncated cone-shaped sleeve, so that the surface line of the plates 9 runs inclined with respect to the rotor axis 19. In the specific example, the surface lines of the plates 9 form an angle of approximately 45 ° with the rotor axis 19. It is clear that other angles up to 90 ° are also possible.
Die im Ringraum 11 dargestellten horizontalen Linien zeigen die radial innen liegenden Innenkanten der Teller 9 sowie die radial innen liegenden Mündungen der Spalte 10.The horizontal lines shown in the annular space 11 show the radially inner inner edges of the plates 9 and the radially inner mouths of the gaps 10.
Die aufeinander gestapelten Teller 9 sind axial zwischen zwei Halteelemente 21 und 22 fixiert, deren mit den Tellern 9 zusammenwirkende Kontur komplementär zu den jeweils axial außen liegenden Tellern 9 geformt sind. Auf diese Weise ist auch zwischen den Halteelementen 21, 22 und dem sich darin abstützenden Teller 9 jeweils ein Spalt 10 ausgebildet. In entsprechender Weise können auch in diesen, axial außen liegenden Spalten 10 Distanzelemente 18 angeordnet sein. Die Halteelemente 21 und 22 sind drehfest an der Rotorwelle 6 fixiert. Durch die Formgebung der Halteelemente 21 und 22 sowie durch die Form der Teller 9 können sämtliche Teller 9 durch eine entsprechende axiale Verspannung zwischen den Halteelementen 21, 22 drehfest an der Rotorwelle 6 fixiert werden, ohne dass weitere Befestigungsmaßnahmen zwischen den Tellern 9 und der Rotorwelle 6 erforderlich sind.The stacked plates 9 are axially fixed between two holding elements 21 and 22, the contour of which cooperates with the plates 9 are shaped to be complementary to the respective axially outer plates 9. In this way, a gap 10 is also formed between the holding elements 21, 22 and the plate 9 supported therein. Correspondingly, 10 spacer elements 18 can also be arranged in these axially outer columns. The holding elements 21 and 22 are fixed in a rotationally fixed manner on the rotor shaft 6. Due to the shape of the holding elements 21 and 22 and the shape of the plate 9, all the plates 9 can be clamped between them by a corresponding axial bracing Retaining elements 21, 22 are fixed in a rotationally fixed manner on the rotor shaft 6 without further fastening measures between the plates 9 and the rotor shaft 6 being necessary.
Die benachbarten Teller 9 sind jeweils aneinander befestigt, wodurch sämtliche Teller 9 zu einem einheitlichen Tellerblock 20 zusammengefasst sind. Die Verbindung zwischen den Tellern 9 kann beispielsweise über die Distanzelemente 18 erfolgen, die z. B. an den jeweils angrenzenden Teller 9 angeschweißt sind. Ebenso ist es möglich, dass die Teller 9 durch spezielle Verbindungsstege oder andere Verbindungselemente aneinander befestigt sind, die hier jedoch nicht dargestellt sind.The adjacent plates 9 are each fastened to one another, as a result of which all plates 9 are combined to form a uniform plate block 20. The connection between the plates 9 can for example be made via the spacer elements 18 which, for. B. are welded to the adjacent plate 9. It is also possible for the plates 9 to be fastened to one another by means of special connecting webs or other connecting elements, but these are not shown here.
Der so gebildete einheitliche Tellerblock 20 kann dann besonders einfach an der Rotorwelle 6 montiert werden, wobei die Fixierung dieses Tellerblocks 20 ebenfalls über die Halteelemente 21, 22 erfolgt.The unitary plate block 20 formed in this way can then be mounted on the rotor shaft 6 in a particularly simple manner, the plate block 20 also being fixed via the holding elements 21, 22.
Von besonderer Bedeutung ist hierbei, dass keiner der Teller 9 direkt an der Rotorwelle 6 befestigt ist, sondern dass die Fixierung der Teller 9 über die Halteelemente 21, 22 erfolgt. Dabei können die axial außen liegenden Teller 9 am jeweiligen Halteelement 21 bzw. 22, z. B. durch Verschweißen oder Verkleben, befestigt sein. Ebenso ist eine Ausführungsform möglich, bei der eine axiale Verspannung ausreicht, die Teller 9 bzw. den Tellerblock 20 drehfest an der Rotorwelle 6 zu sichern. Des weiteren ist auch eine Ausgestaltung möglich, bei der jeder Teller 9 separat an der Rotorwelle 6 be- festigt ist, z.B. ist jeder Teller 9 formschlüssig auf die Rotorwelle 6 aufgesteckt.It is particularly important here that none of the plates 9 is fastened directly to the rotor shaft 6, but that the plates 9 are fixed via the holding elements 21, 22. The axially outer plate 9 on the respective holding element 21 or 22, z. B. by welding or gluing. An embodiment is also possible in which an axial bracing is sufficient to secure the plates 9 or the plate block 20 in a rotationally fixed manner on the rotor shaft 6. Furthermore, an embodiment is also possible in which each plate 9 is separately loaded on the rotor shaft 6. is fixed, for example, each plate 9 is positively attached to the rotor shaft 6.
Entsprechend einer bevorzugten Ausführungsform können mehrere Teller 9 einteilig oder einstückig hergestellt sein, was insbesondere mit Hilfe eines Kunststoff-Spritzgussverfahrens realisierbar ist'. Die gemeinsam in einem Körper hergestellten Teller 9 werden im Folgenden als „Tellerstapel" bezeichnet. Beispielsweise ist es möglich, sämtliche Teller 9 durch ein einstückiges Spritzgussteil herzustellen, so dass der Tellerblock 20 einen einstückig hergestellten Tellerstapel bildet. Bevorzugt werden jedoch Ausführungsformen, bei denen der Tellerblock 20 aus mehreren Tellerstapeln aufgebaut ist. In Fig. 1 ist ein solcher Tellerstapel mit einer geschweiften Klammer gekennzeichnet und mit 23 bezeichnet. Dieser Tellerstapel 23 umfasst beispielsweise drei Teller 9, die integral in einem Stück ausgebildet sind.According to a preferred embodiment 9 may be produced in one piece or integral multiple plates, which can be realized in particular by means of a plastic injection molding process'. The plates 9 which are jointly produced in one body are referred to below as "stack of plates". For example, it is possible to produce all the plates 9 by means of an integral injection-molded part, so that the plate block 20 forms an integral stack of plates. However, embodiments are preferred in which the Plate block 20 is constructed from a plurality of plate stacks, such a plate stack is identified by a curly bracket and designated by 23. This plate stack 23 comprises, for example, three plates 9 which are integrally formed in one piece.
Bei der Verwendung derartiger Tellerstapel 23 vereinfacht sich die Herstellung des Tellerseparators 1, wenn für den Tellerseparator 1 verschiedene Varianten zur Verfügung gestellt werden sollen. Vorzugsweise wird zur Herstellung eines solchen Tellerseparators 1 wie folgt vorgegangen:When using such a plate stack 23, the manufacture of the plate separator 1 is simplified if different variants are to be made available for the plate separator 1. The procedure for producing such a plate separator 1 is preferably as follows:
Der jeweilige Anwendungsfall des Tellerseparators 1 bzw. der damit ausgestatteten Entlüftungsvorrichtung gibt einen Volumenstrom vor, der von Öl zu reinigen ist. In Abhängigkeit dieses Volumenstroms wird die Anzahl der Teller 9 bestimmt, mit denen der Tellerseparator 1 ausgestattet sein muss, um den gewünschten Reinheitsgrad erzielen zu können. Danach kann der Tellerblock 20 aufgebaut bzw. zusammengebaut werden. Um diesen Aufbau des Tellerblocks 20 zu vereinfachen, sind die Tellerstapel 23 vorgefertigt, von denen beispielsweise auch Varianten mit unterschiedlicher Tellerzahl vorhanden sein können. Je nach Ausführungsform werden dann die einzelnen Teller' 9 bzw. die einzelnen Tellerstapel 23 miteinander verbunden, um eine einfach manipulierbare Einheit, nämlich den Tellerblock 20, auszubilden. Schließlich werden die Teller 9 bzw. der Tellerblock 20 zwischen den Halteelementen 21 und 22 an der Rotorwelle 6 fixiert, wobei zusätzliche Befestigungsmaßnahmen zur Anbindung des Tellerblocks 20 an den Halteelementen 21, 22 vorgesehen sein können.The particular application of the plate separator 1 or the venting device equipped with it specifies a volume flow which is to be cleaned of oil. Depending on this volume flow, the number of plates 9 with which the plate separator 1 must be equipped is determined in order to to be able to achieve the desired degree of purity. The plate block 20 can then be assembled or assembled. In order to simplify this structure of the plate block 20, the plate stacks 23 are prefabricated, of which, for example, variants with a different number of plates can also be present. The individual plate '9 or the individual stack of plates 23 are then connected to each other depending on the embodiment to be an easy manipulable unit, namely the block of plates 20, form. Finally, the plates 9 or the plate block 20 are fixed between the holding elements 21 and 22 on the rotor shaft 6, additional fastening measures for connecting the plate block 20 to the holding elements 21, 22 being able to be provided.
Der Tellerseparator 1 wird über seine Rotorwelle 6 angetrieben, wobei grundsätzlich jeder beliebige Antrieb für die Rotorwelle 6 geeignet sein kann. Beispielsweise kann die Rotorwelle 6 mit der Kurbelwelle der Brennkraftmaschine, deren Kurbelgehäuse entlüftet werden soll, gekoppelt sein. Ebenso ist es möglich, die Rotorwelle 6 mit einer Ölzentrifuge oder mit einem Elektromotor zu koppeln. The plate separator 1 is driven via its rotor shaft 6, it being possible in principle for any drive for the rotor shaft 6 to be suitable. For example, the rotor shaft 6 can be coupled to the crankshaft of the internal combustion engine, the crankcase of which is to be vented. It is also possible to couple the rotor shaft 6 with an oil centrifuge or with an electric motor.

Claims

Ansprüche Expectations
1. Entlüftungsvόrrichtung für ein Kurbelgehäuse einer Brennkraftmaschine mit einem Zentrifugal-Ölabscheider (1) , der einen Gemischeinlass (13) für ein Luft-Öl-Gemisch und einen Luftauslass (12) für Reinluft sowie einen Ölauslass (14) für Öl aufweist, dadurch gekennzeichnet, dass der Zentrifugal-Ölabscheider als Tellerseparator (1) ausgebildet ist.1. Ventilation device for a crankcase of an internal combustion engine with a centrifugal oil separator (1), which has a mixture inlet (13) for an air-oil mixture and an air outlet (12) for clean air and an oil outlet (14) for oil that the centrifugal oil separator is designed as a plate separator (1).
2. Entlüftungsvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der Tellerseparator (1) einen als Gehäuse (7) ausgebildeten Stator (2) aufweist, in dem ein Rotor (3) untergebracht ist, der mehrere Teller (9) aufweist, die entlang der Rotorachse (19) parallel zueinander und koaxial zur Rotorachse (19) angeordnet sind, wobei jeweils zwischen zwei benachbarten Tellern (9) ein Spalt (10) ausgebildet ist, der einen im Inneren des Rotors (3) ausgebildeten Ringraum (11) mit einem Raum (8) verbindet, der im Inneren des Gehäuses (7) den Rotor (3) umgibt.2. Ventilation device according to claim 1, characterized in that the plate separator (1) has a housing (7) formed stator (2) in which a rotor (3) is housed, which has a plurality of plates (9) along the The rotor axis (19) is arranged parallel to one another and coaxially to the rotor axis (19), a gap (10) being formed between two adjacent plates (9), which has an annular space (11) with a space formed inside the rotor (3) (8) connects which surrounds the rotor (3) in the interior of the housing (7).
3. Entlüftungsvorrichtung nach Anspruch 2, dadurch gekennz ichnet, dass die Teller (9) einen Tellerblock (20) bilden, bei dem benachbarte Teller (9) aneinander befestigt sind, wobei der Tellerblock (20) über seine axialen Enden mit einer zentralen Rotorwelle (6) des Rotors (3) drehfest verbunden ist.3. A venting device according to claim 2, characterized in that that the plates (9) form a plate block (20) in which adjacent plates (9) are fastened to one another, the plate block (20) being connected in a rotationally fixed manner via its axial ends to a central rotor shaft (6) of the rotor (3).
4. Entlüftungsvorrichtung nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass wenigstens zwei benachbarte Teller (9) einen Tellerstapel (23) bilden, der einteilig hergestellt ist.4. Ventilation device according to claim 2 or 3, characterized in that at least two adjacent plates (9) form a plate stack (23) which is made in one piece.
5. Entlüftungsvorrichtung nach den Ansprüchen 3 und 4, dadurch gekennzeichnet, dass der Tellerblock (20) durch mindestens einen Tellerstapel (23) gebildet ist.5. Venting device according to claims 3 and 4, characterized in that the plate block (20) is formed by at least one plate stack (23).
6. Entlüftungsvorrichtung nach einem der Ansprüche 2 bis 5, dadurch gekennzeichnet, dass jeder Teller (9) im wesentlichen die Gestalt einer kegelstumpfförmigen Hülse aufweist.6. Venting device according to one of claims 2 to 5, characterized in that each plate (9) has essentially the shape of a truncated cone-shaped sleeve.
7. Entlüftungsvorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass die Mantellinie der Teller (9) mit der Rotorachse (19) einen Winkel von etwa 45° einschließt.7. Ventilation device according to claim 6, characterized in that the surface line of the plate (9) with the rotor axis (19) encloses an angle of approximately 45 °.
8. Entlüftungsvorrichtung nach einem der Ansprüche 2 bis 7, dadurch gekennzeichnet, dass in Richtung der Rotorachse (19) zwischen benachbarten Tellern (9) Distanzelemente (18) angeordnet sind, die den jeweiligen Spalt (10) erzeugen.8. Venting device according to one of claims 2 to 7, characterized in that that in the direction of the rotor axis (19) between adjacent plates (9) spacer elements (18) are arranged which generate the respective gap (10).
9. Entlüftungsvorrichtung nach Anspruch 8, dadurch gekennzeichnet, dass die Distanzelemente (18) einteilig mit den Tellern (9) hergestellt sind.9. Ventilation device according to claim 8, characterized in that the spacer elements (18) are made in one piece with the plates (9).
10. Entlüftungsvorrichtung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass die Entlüftungsvorrichtung einen Verdichter (15) aufweist, der dem Tellerseparator (1) vorgeschaltet oder nachgeschaltet ist, wobei der Verdichter (15) im wesentlichen so dimensioniert ist, dass er einen Druckverlust, der sich bei der Durchströmung des Tellerseparators (1) einstellt, zumindest ausgleicht.10. Venting device according to one of claims 1 to 9, characterized in that the venting device has a compressor (15) which is connected upstream or downstream of the plate separator (1), the compressor (15) being dimensioned essentially such that it has a Pressure loss that occurs when the plate separator (1) flows through, at least compensates.
11. Entlüftungsvorrichtung nach Anspruch 10, dadurch gekennzeichnet, dass der Verdichter (15) als Radialverdichter ausgebildet ist, der dem Tellerseparator (1) auf der Reinluftseite nachgeschaltet ist.11. Ventilation device according to claim 10, characterized in that the compressor (15) is designed as a radial compressor which is connected downstream of the plate separator (1) on the clean air side.
12. Entlüftungsvorrichtung nach Anspruch 10 oder 11, dadurch gekennzeichnet, dass ein Verdichterrad (16) des Verdichters (15) am Rotor (3) des Tellerseparators (1) befestigt ist. 12. Ventilation device according to claim 10 or 11, characterized in that a compressor wheel (16) of the compressor (15) on the rotor (3) of the plate separator (1) is attached.
13. Entlüftungsvorrichtung zumindest nach den Ansprüchen 2 und 12, dadurch gekennzeichnet, dass eine Austrittsöffnung des Ringraums (11) direkt in der Niederdruckseite des Verdichterrads (16) mündet.13. Venting device at least according to claims 2 and 12, characterized in that an outlet opening of the annular space (11) opens directly into the low-pressure side of the compressor wheel (16).
14. Entlüftungsvόrrichtung nach einem der Ansprüche 2 bis 13, dadurch gekennzeichnet, dass der Ringraum (11) des Rotors (3) mit einem ersten Anschluss (12) und der Raum (8) des Gehäuses (7) mit einem zweiten Anschluss (13) sowie einem dritten Anschluss (14) verbunden ist, wobei der ersten Anschluss (12) entweder den Gemischeinlass oder den Luftauslass bildet, wobei der zweite Anschluss (13) dementsprechend entweder den Luftauslass oder den Gemischeinlass bildet, wobei der dritte Anschluss (14) den Ölauslass bildet.14. Ventilation device according to one of claims 2 to 13, characterized in that the annular space (11) of the rotor (3) with a first connection (12) and the space (8) of the housing (7) with a second connection (13) and a third connection (14), the first connection (12) forming either the mixture inlet or the air outlet, the second connection (13) correspondingly forming either the air outlet or the mixture inlet, the third connection (14) forming the oil outlet forms.
15. Verfahren zur Herstellung eines Tellerseparators (1) nach einem der Ansprüche 2 bis 14, wobei in Abhängigkeit des vom Öl zu reinigenden Volumenstroms die Anzahl der Teller (9) bestimmt wird, wobei mit dieser Tellerzahl ein Tellerblock (20) gebildet wird, wobei dieser Tellerblock (20) dann an der Rotorwelle (6) befestigt wird.15. A method for producing a plate separator (1) according to any one of claims 2 to 14, wherein the number of plates (9) is determined depending on the volume flow to be cleaned by the oil, a plate block (20) being formed with this number of plates, wherein this plate block (20) is then attached to the rotor shaft (6).
16. Verfahren nach Anspruch 15, dadurch gekennzeichnet, dass der Tellerblock (20) aus mehreren vorgefertigten Tellerstapeln (23) aufgebaut wird, die so kombiniert werden, dass der Tellerblock (20) die gewünschte Tellerzahl besitzt, wobei die Tellerstapel (23) unterschiedliche Telleranzahlen aufweisen können.16. The method according to claim 15, characterized in that the plate block (20) is constructed from a plurality of prefabricated plate stacks (23) which are combined in such a way that the plate block (20) has the desired number of plates, the plate stack (23) having different plate numbers.
17. Verwendung eines Tellerseparators als Zentrifugal- Ölabscheider in einer Entlüftungsvorrichtung für ein Kurbelgehäuse einer Brennkraftmaschine. 17. Use of a plate separator as a centrifugal oil separator in a ventilation device for a crankcase of an internal combustion engine.
EP01969261A 2000-09-09 2001-08-22 Ventilation device for a crankcase Revoked EP1322841B1 (en)

Applications Claiming Priority (3)

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DE10044615A DE10044615A1 (en) 2000-09-09 2000-09-09 Ventilation device for a crankcase
DE10044615 2000-09-09
PCT/DE2001/003286 WO2002020954A1 (en) 2000-09-09 2001-08-22 Ventilation device for a crankcase

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EP1322841A1 true EP1322841A1 (en) 2003-07-02
EP1322841B1 EP1322841B1 (en) 2004-08-11

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AT (1) ATE273446T1 (en)
DE (2) DE10044615A1 (en)
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DE10044615A1 (en) 2002-04-04
EP1322841B1 (en) 2004-08-11
US20030178014A1 (en) 2003-09-25
ATE273446T1 (en) 2004-08-15
US6973925B2 (en) 2005-12-13
WO2002020954A1 (en) 2002-03-14
DE50103251D1 (en) 2004-09-16

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