EP2021592B1 - Device for ventilating a crankcase - Google Patents

Device for ventilating a crankcase Download PDF

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Publication number
EP2021592B1
EP2021592B1 EP07728890A EP07728890A EP2021592B1 EP 2021592 B1 EP2021592 B1 EP 2021592B1 EP 07728890 A EP07728890 A EP 07728890A EP 07728890 A EP07728890 A EP 07728890A EP 2021592 B1 EP2021592 B1 EP 2021592B1
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EP
European Patent Office
Prior art keywords
oil mist
mist separator
pump
oil
separator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Application number
EP07728890A
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German (de)
French (fr)
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EP2021592A2 (en
Inventor
Stefan Ruppel
Yakup ÖZKAYA
Klaus Beetz
Andreas Enderich
Gerd Kissner
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Mahle International GmbH
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Mahle International GmbH
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Publication of EP2021592A2 publication Critical patent/EP2021592A2/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00—Crankcase ventilating or breathing
    • F01M13/02—Crankcase ventilating or breathing by means of additional source of positive or negative pressure
    • F01M13/021—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure
    • F01M13/022—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure using engine inlet suction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00—Crankcase ventilating or breathing
    • F01M13/02—Crankcase ventilating or breathing by means of additional source of positive or negative pressure
    • F01M13/021—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00—Crankcase ventilating or breathing
    • F01M13/02—Crankcase ventilating or breathing by means of additional source of positive or negative pressure
    • F01M13/021—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure
    • F01M13/022—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure using engine inlet suction
    • F01M13/023—Control valves in suction conduit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00—Crankcase ventilating or breathing
    • F01M13/02—Crankcase ventilating or breathing by means of additional source of positive or negative pressure
    • F01M13/021—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure
    • F01M2013/026—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure with pumps sucking air or blow-by gases from the crankcase

Definitions

  • the invention relates to a device for the venting of a crankcase of an internal combustion engine according to the preamble of claim 1.
  • a device of the generic type is known from the practice of engine construction, especially for automobiles.
  • the object of such a device is to maintain a required for technical and legal reasons negative pressure in the crankcase of the internal combustion engine by the crankcase is vented.
  • negative pressure in the crankcase of the internal combustion engine by the crankcase is vented.
  • entrained oil fractions are separated in a ⁇ lnebelabscheider and the separated oil is preferably returned to the lubricating oil circuit of the internal combustion engine.
  • the gas released from the oil enters the intake pipe of the internal combustion engine and then passes through the combustion taking place in the cylinder.
  • a generic oil separator in which a fitted with an impeller rotor at the same time serves as a compressor and as a conveyor, whereby a particularly compact design to be achieved.
  • a device for the venting of a crankcase of an internal combustion engine is known, with a leading from the crankcase to an intake manifold of the engine vent line, in the course of which an oil mist separator is arranged.
  • a pump is arranged in the further course of the vent line, with the crankcase in the negative pressure relative to the ambient air pressure can be generated. This is intended to prevent an excessively high pressure building up in the crankcase, in particular when the internal combustion engine is running in the region of its zero load.
  • the invention is concerned with the problem of improving a generic device compared to the previously known prior art such that in particular a reduced space requirement can be achieved.
  • the invention is based on the general idea, in a device for venting a crankcase of an internal combustion engine with a ⁇ lnebelabscheider and a downstream of this pump to generate a negative pressure, the oil mist separator and the pump as an interconnected assembly form.
  • a particularly compact design is achieved, which is a great advantage in an increasingly scarce supply of space in an engine compartment.
  • the pump is downstream of the oil mist in a known manner. In principle, it is also conceivable that at Such an assembly can be found for maintenance cheaper installation location, so that a change of ⁇ lnebelabscheiders or maintenance of the pump is simpler and thus less expensive.
  • At least part of a stator of the pump is integrated in the oil mist separator.
  • the close teeth between the pump and the oil mist separator is clear, which is reflected in a very compact design and thus connected with a very small space requirement.
  • Simultaneous maintenance is possible by this design, since a part of the stator of the pump is preferably formed simultaneously as a baffle for the oil mist separator and, if this baffle is covered with a corresponding non-woven or the like, allows simplified access thereto.
  • the oil mist separator comprises an impactor which has flow nozzles and a baffle wall opposite thereto.
  • Such formed as an impactor oil mist separator have long been, for example EP 1 068 890 B1 known and ensure reliable oil separation over a long service life.
  • the oil mist separator upstream or downstream of an additional ⁇ lnebelvorabscheider or an additional ⁇ lnebelnachabscheider.
  • an upstream ⁇ lnebelvorabscheider is for example a cyclone in question, which an additional Cleaning the oil mist-containing blow-by gases causes.
  • Such a cyclone can also be used as Nachabscheider.
  • a fan blade of the pump is arranged coaxially to the axis of the oil mist separator and rotates this radially outward.
  • Such an arrangement of the fan blade of the pump ensures a particularly compact design, which can reduce the space requirement of the assembly formed by ⁇ lnebelabscheider and pump.
  • a part of the oil mist separator can be formed by parts of the stator of the pump, whereby the compactness of the assembly according to the invention can be additionally increased.
  • the oil mist separator and the pump have a common housing or are arranged in a common housing.
  • This measure also favors the compact design of the assembly formed from oil mist separator and pump and also eliminates the need for another housing, for example for the pump or the oil mist separator.
  • a common housing therefore reduces the variety of parts and helps to reduce the manufacturing costs of the assembly.
  • a device 1 according to the invention for the venting of a crankcase, not shown, of an internal combustion engine is shown.
  • the device 1 is arranged in a vent line, which leads from the crankcase to a suction, or suction of the engine, and has essentially an oil mist separator 2 and a downstream downstream pump 3 for generating a negative pressure.
  • the pump 3 is connected downstream of the oil mist separator 2, so that only cleaned blow-by gases with a fan 4 of the pump 3 come into contact.
  • the pump 3 is used to generate a negative pressure, which is to ensure that even in zero-load operation of the engine, a too high gas pressure in the crankcase is avoided and occurring in the crankcase blow-by gases are reliably sucked.
  • the oil mist separator 2 and the pump 3 formed as interconnected assembly. This allows a particularly compact design of the device 1 and reduced their space requirements, which is especially in the small space available in today's engine compartments of great advantage.
  • the oil mist separator 2 has nozzles 5, in particular flow or acceleration nozzles, which accelerate the gas stream flowing through the device 1 and feed it to a baffle wall 6 opposite the nozzles 5.
  • the baffle 6 is occupied for example with a fabric or a non-woven, which further improves the absorption effect.
  • the oil collected on the baffle wall flows according to the Fig. 1 and 2 in the direction of gravity on a bottom 7 of the ⁇ lnebelabscheiders 2 and from this to an oil drain 8, which is preferably connected to an oil reservoir, not shown, so that the separated oil can be recirculated to a lubrication circuit.
  • the oil mist separator 2 is designed as an impactor, wherein in addition a not shown ⁇ lnebelvorabscheider or ⁇ lnebelnachabscheider can be provided.
  • Such an oil mist pre-separator which is arranged upstream of the impactor or of the oil mist separator 2, can be designed, for example, as a cyclone.
  • the pump 3 is designed as an annular duct fan, which presses on its fan blades 9 cleaned blow-by gas in the direction of an output 10 and thereby generates a negative pressure in the oil mist separator 2 or in the upstream crankcase.
  • the designated by the reference numeral 3 pump according to the Fig. 1 and 2 stands for the space of the pump 3, so that in this example, a storage or control of the pump 3 can be accommodated.
  • FIG. 1 can be seen further, at least part of a stator 11 of the pump 3 is integrated into the oil mist separator 2, wherein the stator 11 according to the Fig. 1 the baffles 6 forms.
  • the oil mist separator 2 is designed as a switchable oil mist separator and a vacuum valve 12, in particular a spring-loaded vacuum valve 12, which causes a defined flow under a defined negative pressure and further nozzles 5 'releases.
  • the vacuum valve 12 is designed as a poppet valve. When the vacuum valve 12 is open, thus blow-by gas flows through both the nozzles 5 and the other nozzles 5 '. Both nozzles 5 and 5 'is common that they direct the accelerated blow-by gas flow to the baffle 6 and thereby cause an oil mist separation at this.
  • Fig. 1 the fan blade 9 of the pump 3 is arranged coaxially to the axis 13 of the oil mist separator 2 and circulates this radially outside.
  • the fan blade 9 of the pump 3 according to the Fig. 2 arranged offset in the axial direction to the oil mist separator 2, whereby the height of the in Fig. 2 shown variant of the device 1 increases slightly.
  • Both the oil mist separator 2 and the pump 3 are according to the Fig. 1 arranged in a common housing 14, so that in comparison to a separate design of the two components, a housing can be saved.
  • Fig. 1 the fan blade 9 of the pump 3 is arranged coaxially to the axis 13 of the oil mist separator 2 and circulates this radially outside.
  • the fan blade 9 of the pump 3 according to the Fig. 2 arranged offset in the axial direction to the oil mist separator 2, whereby the height of the in Fig. 2 shown variant of the device 1 increases slightly.
  • the pump 3 and the baffle 6 of the oil mist separator 2 are arranged in a first housing part 14 ', while the nozzles 5 of the oil mist separator 2 are arranged in a second housing part 14 "which can be connected to the first housing part 14' individual housing parts 14 'and 14''allow a disassembly of the device 1, which is particularly advantageous during maintenance.
  • the device 1 is characterized by a low overall height, for example 45 mm and a small width, for example 90 mm.
  • the fan 4 is offset with the radially outwardly arranged fan blades 9 in a rotational movement about the axis 13, whereby blow-by gases are pressed in the direction of the output 10 and are sucked in from an input 15 ago.
  • the oil-mist-containing blow-by gases enter the oil mist separator 2 via the inlet 15, they flow along the flow direction 16 as far as the flow direction 16 Nozzle 5 or to the nozzles 5, to which the blow-by gases are accelerated.
  • the baffle 6 is arranged, on which bounce the blow-by gases and thereby deliver at least a large part of their transported oil to the baffle 6.
  • the blow-by gases flow along the direction 16 to the fan blade 9 and from there to the output 10.
  • the collected on the baffle 6 oil runs in the direction of gravity and drips onto the bottom 7, which at its lowest point the oil drain. 8 having.
  • This oil drain 8 is preferably connected to the oil reservoir and leads the separated oil to the oil circuit again.
  • the inventive device 1, a particularly compact design can be achieved, which also saves an additional housing either for the oil mist separator 2 or for the pump 3 and beyond additional connecting lines between the oil mist separator 2 and the pump 3 can be obsolete.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Separating Particles In Gases By Inertia (AREA)

Description

Die Erfindung betrifft eine Einrichtung für die Entlüftung eines Kurbelgehäuses eines Verbrennungsmotors gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a device for the venting of a crankcase of an internal combustion engine according to the preamble of claim 1.

Eine Einrichtung der gattungsgemäßen Art ist aus der Praxis des Motorenbaus, insbesondere für Automobile, bekannt. Die Aufgabe einer derartigen Einrichtung besteht darin, einen aus technischen und gesetzlichen Gründen erforderlichen Unterdruck im Kurbelgehäuse der Brennkraftmaschine aufrecht zu erhalten, indem das Kurbelgehäuse entlüftet wird. Im Kurbelgehäuse-Entlüftungsgas mitgeführte Ölanteile werden in einem Ölnebelabscheider abgetrennt und das abgetrennte Öl wird vorzugsweise wieder dem Schmierölkreislauf der Brennkraftmaschine zugeführt. Das vom Öl befreite Gas gelangt in das Ansaugrohr der Brennkraftmaschine und durchläuft dann die im Zylinder stattfindende Verbrennung.A device of the generic type is known from the practice of engine construction, especially for automobiles. The object of such a device is to maintain a required for technical and legal reasons negative pressure in the crankcase of the internal combustion engine by the crankcase is vented. In the crankcase ventilation gas entrained oil fractions are separated in a Ölnebelabscheider and the separated oil is preferably returned to the lubricating oil circuit of the internal combustion engine. The gas released from the oil enters the intake pipe of the internal combustion engine and then passes through the combustion taking place in the cylinder.

Aus der DE 203 02 824 U1 ist ein gattungsgemäßer Ölabscheider bekannt, bei dem ein mit einem Laufrad bestückter Rotor zugleich als Verdichter und als Fördereinrichtung dient, wodurch eine besonders kompakte Bauform erreicht werden soll. Aus der WO 02/070871 A2 ist eine Einrichtung für die Entlüftung eines Kurbelgehäuses einer Brennkraftmaschine bekannt, mit einer vom Kurbelgehäuse zu einem Ansaugrohr der Brennkraftmaschine führenden Entlüftungsleitung, in deren Verlauf ein Ölnebelabscheider angeordnet ist. Dabei ist im weiteren Verlauf der Entlüftungsleitung eine Pumpe angeordnet, mit der im Kurbelgehäuse ein Unterdruck gegenüber dem Umgebungsluftdruck erzeugbar ist. Dies soll verhindern, dass sich im Kurbelgehäuse ein zu hoher Druck aufbaut, insbesondere dann, wenn die Brennkraftmaschine im Bereich ihrer Null-Last läuft.From the DE 203 02 824 U1 a generic oil separator is known in which a fitted with an impeller rotor at the same time serves as a compressor and as a conveyor, whereby a particularly compact design to be achieved. From the WO 02/070871 A2 a device for the venting of a crankcase of an internal combustion engine is known, with a leading from the crankcase to an intake manifold of the engine vent line, in the course of which an oil mist separator is arranged. In this case, a pump is arranged in the further course of the vent line, with the crankcase in the negative pressure relative to the ambient air pressure can be generated. This is intended to prevent an excessively high pressure building up in the crankcase, in particular when the internal combustion engine is running in the region of its zero load.

Die Erfindung beschäftigt sich mit dem Problem, eine gattungsgemäße Einrichtung gegenüber dem bisher bekannten Stand der Technik derart zu verbessern, dass insbesondere ein verringerter Bauraumbedarf erreicht werden kann.The invention is concerned with the problem of improving a generic device compared to the previously known prior art such that in particular a reduced space requirement can be achieved.

Gelöst wird dieses Problem durch den Gegenstand des unabhängigen Anspruchs 1. Vorteilhafte Ausführungsformen sind Gegenstand der abhängigen Ansprüche.This problem is solved by the subject matter of independent claim 1. Advantageous embodiments are the subject of the dependent claims.

Die Erfindung beruht auf dem allgemeinen Gedanken, bei einer Einrichtung für die Entlüftung eines Kurbelgehäuses eines Verbrennungsmotors mit einem Ölnebelabscheider und einer diesem nachgeschalteten Pumpe zur Erzeugung eines Unterdrucks, den Ölnebelabscheider und die Pumpe als miteinander verbundene Baugruppe auszubilden. Hierdurch wird eine besonders kompakte Bauweise erreicht, welche bei einem immer knapper werdenden Bauraumangebot in einem Motorraum von großem Vorteil ist. Darüber hinaus entfällt eine weitere Leitung zwischen Ölnebelabscheider und Pumpe, so dass sich einerseits die Teilevielfalt reduziert und andererseits Montagekosten eingespart werden können. Bei der erfindungsgemäßen Baugruppe mit integriertem Ölnebelabscheider und integrierter Pumpe, ist die Pumpe dem Ölnebelabscheider in bekannter Weise nachgeschaltet. Prinzipiell ist auch denkbar, dass bei einer derartigen Baugruppe ein für Wartungszwecke günstigerer Einbauort gefunden werden kann, so dass ein Wechsel des Ölnebelabscheiders oder eine Wartung der Pumpe einfacher und dadurch kostengünstiger ist.The invention is based on the general idea, in a device for venting a crankcase of an internal combustion engine with a Ölnebelabscheider and a downstream of this pump to generate a negative pressure, the oil mist separator and the pump as an interconnected assembly form. As a result, a particularly compact design is achieved, which is a great advantage in an increasingly scarce supply of space in an engine compartment. In addition, eliminates a further line between oil mist separator and pump, so that on the one hand reduces the variety of parts and on the other hand assembly costs can be saved. In the assembly according to the invention with integrated Ölnebelabscheider and integrated pump, the pump is downstream of the oil mist in a known manner. In principle, it is also conceivable that at Such an assembly can be found for maintenance cheaper installation location, so that a change of Ölnebelabscheiders or maintenance of the pump is simpler and thus less expensive.

Zweckmäßig ist zumindest ein Teil eines Stators der Pumpe in den Ölnebelabscheider integriert. Hierdurch wird die enge Verzahnung zwischen der Pumpe und dem Ölnebelabscheider deutlich ,was sich in einer sehr kompakten Bauweise und verbunden damit mit einem sehr geringen Bauraumbedarf wiederspiegelt. Gleichzeitig ist durch diese Bauweise eine vereinfachte Wartung möglich, da ein Teil des Stators der Pumpe vorzugsweise gleichzeitig als Prallwand für den Ölnebelabscheider ausgebildet ist und, sofern diese Prallwand mit einem entsprechenden Vlies oder ähnlichem belegt ist, einen vereinfachten Zugriff darauf ermöglicht.Suitably, at least part of a stator of the pump is integrated in the oil mist separator. As a result, the close teeth between the pump and the oil mist separator is clear, which is reflected in a very compact design and thus connected with a very small space requirement. Simultaneous maintenance is possible by this design, since a part of the stator of the pump is preferably formed simultaneously as a baffle for the oil mist separator and, if this baffle is covered with a corresponding non-woven or the like, allows simplified access thereto.

Bei einer weiteren vorteilhaften Ausbildungsform der erfindungsgemäßen Lösung umfasst der Ölnebelabscheider einen Impactor, der Strömungsdüsen und eine diesen gegenüberliegende Prallwand aufweist. Derartige als Impactor ausgebildete Ölnebelabscheider sind seit längerem aus beispielsweise EP 1 068 890 B1 bekannt und gewährleisten eine zuverlässige Ölabscheidung über eine lange Betriebsdauer. Selbstverständlich ist hierbei auch denkbar, dass dem Ölnebelabscheider ein zusätzlicher Ölnebelvorabscheider oder ein zusätzlicher Ölnebelnachabscheider vor- beziehungsweise nachgeschaltet ist. Als vorgeschalteter Ölnebelvorabscheider kommt beispielsweise ein Zyklon in Frage, welcher eine zusätzliche Reinigung der ölnebelhaltigen Blow-by-Gase bewirkt. Ein solcher Zyklon kann auch als Nachabscheider eingesetzt sein.In a further advantageous embodiment of the solution according to the invention, the oil mist separator comprises an impactor which has flow nozzles and a baffle wall opposite thereto. Such formed as an impactor oil mist separator have long been, for example EP 1 068 890 B1 known and ensure reliable oil separation over a long service life. Of course, it is also conceivable that the oil mist separator upstream or downstream of an additional Ölnebelvorabscheider or an additional Ölnebelnachabscheider. As an upstream Ölnebelvorabscheider is for example a cyclone in question, which an additional Cleaning the oil mist-containing blow-by gases causes. Such a cyclone can also be used as Nachabscheider.

Bei einer besonders bevorzugten Ausführungsform ist eine Lüfterschaufel der Pumpe koaxial zur Achse des Ölnebelabscheiders angeordnet und umläuft diesen radial außen. Eine derartige Anordnung der Lüfterschaufel der Pumpe gewährleistet eine besonders kompakte Bauweise, wodurch sich der Bauraumbedarf der aus Ölnebelabscheider und Pumpe gebildeten Baugruppe reduzieren lässt. Gleichzeitig kann bei einer derartigen Anordnung ein Teil des Ölnebelabscheiders durch Teile des Stators der Pumpe gebildet werden, wodurch sich die Kompaktheit der erfindungsgemäßen Baugruppe zusätzlich steigern lässt.In a particularly preferred embodiment, a fan blade of the pump is arranged coaxially to the axis of the oil mist separator and rotates this radially outward. Such an arrangement of the fan blade of the pump ensures a particularly compact design, which can reduce the space requirement of the assembly formed by Ölnebelabscheider and pump. At the same time, in such an arrangement, a part of the oil mist separator can be formed by parts of the stator of the pump, whereby the compactness of the assembly according to the invention can be additionally increased.

Zweckmäßig weisen der Ölnebelabscheider und die Pumpe ein gemeinsames Gehäuse auf beziehungsweise sind in einem gemeinsamen Gehäuse angeordnet. Auch diese Maßnahme begünstigt die kompakte Bauweise der aus Ölnebelabscheider und Pumpe gebildeten Baugruppe und erübrigt darüber hinaus das Vorhalten eines weiteren Gehäuses, beispielsweise für die Pumpe oder den Ölnebelabscheider. Ein gemeinsames Gehäuse reduziert daher die Teilevielfalt und hilft mit, die Herstellungskosten der Baugruppe zu reduzieren.Suitably, the oil mist separator and the pump have a common housing or are arranged in a common housing. This measure also favors the compact design of the assembly formed from oil mist separator and pump and also eliminates the need for another housing, for example for the pump or the oil mist separator. A common housing therefore reduces the variety of parts and helps to reduce the manufacturing costs of the assembly.

Vorteilhafte, nachstehend näher erläuterte Ausführungsbeispiele sind in den Zeichnungen jeweils schematisch dargestellt.Advantageous, explained in more detail below embodiments are shown schematically in the drawings.

Dabei zeigen,

Fig. 1
einen Querschnitt durch eine erfindungsgemäße Ein- richtung,
Fig. 2
eine Darstellung wie in Fig. 1, jedoch bei einer an- deren Ausführungsform.
Show
Fig. 1
a cross section through an inventive device,
Fig. 2
a representation like in Fig. 1 but in another embodiment.

In Fig. 1 ist eine erfindungsgemäße Einrichtung 1 für die Entlüftung eines nicht gezeigten Kurbelgehäuses eines Verbrennungsmotors dargestellt. Die Einrichtung 1 ist dabei in einer Entlüftungsleitung angeordnet, welche vom Kurbelgehäuse zu einer Saugleistung, beziehungsweise Ansaugleitung des Verbrennungsmotors führt, und weist im wesentlichen einen Ölnebelabscheider 2 sowie eine stromab nachgeschaltete Pumpe 3 zur Erzeugung eines Unterdrucks auf. Die Pumpe 3 ist dabei dem Ölnebelabscheider 2 nachgeschaltet, so dass lediglich gereinigte Blow-by-Gase mit einem Lüfterrad 4 der Pumpe 3 in Berührung kommen. Generell dient die Pumpe 3 zur Erzeugung eines Unterdrucks, welcher gewährleisten soll, dass auch im Null-Last-Betrieb des Verbrennungsmotors ein zu hoher Gasdruck im Kurbelgehäuse vermieden wird und die im Kurbelgehäuse auftretenden Blow-by-Gase zuverlässig abgesaugt werden.In Fig. 1 a device 1 according to the invention for the venting of a crankcase, not shown, of an internal combustion engine is shown. The device 1 is arranged in a vent line, which leads from the crankcase to a suction, or suction of the engine, and has essentially an oil mist separator 2 and a downstream downstream pump 3 for generating a negative pressure. The pump 3 is connected downstream of the oil mist separator 2, so that only cleaned blow-by gases with a fan 4 of the pump 3 come into contact. In general, the pump 3 is used to generate a negative pressure, which is to ensure that even in zero-load operation of the engine, a too high gas pressure in the crankcase is avoided and occurring in the crankcase blow-by gases are reliably sucked.

Gemäß der Erfindung sind dabei, wie in den Fig. 1 und 2 gezeigt, der Ölnebelabscheider 2 und die Pumpe 3 als miteinander verbundene Baugruppe ausgebildet. Dies ermöglicht eine besonders kompakte Bauweise der Einrichtung 1 und reduziert deren Bauraumbedarf, was insbesondere bei dem geringen Bauraumangebot in heutigen Motorräumen von großem Vorteil ist.According to the invention are, as in the Fig. 1 and 2 shown, the oil mist separator 2 and the pump 3 formed as interconnected assembly. This allows a particularly compact design of the device 1 and reduced their space requirements, which is especially in the small space available in today's engine compartments of great advantage.

Der Ölnebelabscheider 2 weist Düsen 5, insbesondere Strömungs- bzw. Beschleunigungsdüsen auf, welche den durch die Einrichtung 1 strömenden Gasstrom beschleunigen und einer den Düsen 5 gegenüberliegenden Prallwand 6 zuführen. Die Prallwand 6 ist dabei beispielsweise mit einem Gewebe oder einem Vlies belegt, was die Absorptionswirkung nochmals verbessert. Das an der Prallwand aufgefangene Öl fließt gemäß den Fig. 1 und 2 in Richtung der Schwerkraft auf einen Boden 7 des Ölnebelabscheiders 2 und von diesem zu einem Ölablass 8, welcher vorzugsweise mit einem nicht gezeigten Ölreservoir verbunden ist, so dass das abgeschiedene Öl einem Schmierkreislauf erneut geführt werden kann.The oil mist separator 2 has nozzles 5, in particular flow or acceleration nozzles, which accelerate the gas stream flowing through the device 1 and feed it to a baffle wall 6 opposite the nozzles 5. The baffle 6 is occupied for example with a fabric or a non-woven, which further improves the absorption effect. The oil collected on the baffle wall flows according to the Fig. 1 and 2 in the direction of gravity on a bottom 7 of the Ölnebelabscheiders 2 and from this to an oil drain 8, which is preferably connected to an oil reservoir, not shown, so that the separated oil can be recirculated to a lubrication circuit.

Generell ist dabei denkbar, dass der Ölnebelabscheider 2, wie in den Fig. 1 und 2 gezeigt, als Impactor ausgebildet ist, wobei zusätzlich ein nicht gezeigter Ölnebelvorabscheider bzw. Ölnebelnachabscheider vorgesehen sein kann. Ein derartiger Ölnebelvorabscheider, welcher stromauf des Impactors bzw. des Ölnebelabscheiders 2 angeordnet ist, kann beispielsweise als Zyklon ausgebildet sein.In general, it is conceivable that the oil mist separator 2, as in the Fig. 1 and 2 shown, is designed as an impactor, wherein in addition a not shown Ölnebelvorabscheider or Ölnebelnachabscheider can be provided. Such an oil mist pre-separator, which is arranged upstream of the impactor or of the oil mist separator 2, can be designed, for example, as a cyclone.

Gemäß den Fig. 1 und 2 ist die Pumpe 3 als Ringkanallüfter ausgebildet, welcher über ihre Lüfterschaufeln 9 gereingtes Blow-by-Gas in Richtung eines Ausgangs 10 drückt und dadurch einen Unterdruck im Ölnebelabscheider 2 beziehungsweise in dem diesem stromauf gelegenen Kurbelgehäuse erzeugt. Selbstverständlich sind auch andere Pumpenarten bzw. Lüfterarten vorstellbar, welche kompakt bauen und den benötigten Unterdruck erzeugen können. Die mit den Bezugszeichen 3 bezeichnete Pumpe gemäß den Fig. 1 und 2 steht dabei auch für den Bauraum der Pumpe 3, so dass in diesem beispielsweise auch eine Lagerung bzw. Ansteuerung der Pumpe 3 untergebracht sein kann.According to the Fig. 1 and 2 the pump 3 is designed as an annular duct fan, which presses on its fan blades 9 cleaned blow-by gas in the direction of an output 10 and thereby generates a negative pressure in the oil mist separator 2 or in the upstream crankcase. Of course Other types of pumps or types of fans are conceivable, which can build compact and generate the required negative pressure. The designated by the reference numeral 3 pump according to the Fig. 1 and 2 stands for the space of the pump 3, so that in this example, a storage or control of the pump 3 can be accommodated.

Wie der Fig. 1 weiter zu entnehmen ist, ist zumindest ein Teil eines Stators 11 der Pumpe 3 in den Ölnebelabscheider 2 integriert, wobei der Stator 11 gemäß der Fig. 1 die Prallwände 6 bildet.Again Fig. 1 can be seen further, at least part of a stator 11 of the pump 3 is integrated into the oil mist separator 2, wherein the stator 11 according to the Fig. 1 the baffles 6 forms.

Des weiteren kann vorgesehen sein, dass der Ölnebelabscheider 2 als schaltbarer Ölnebelabscheider ausgebildet ist und ein Unterdruckventil 12, insbesondere ein federbelastetes Unterdruckventil 12, aufweist, welches bei definiertem Unterdruck eine Strömungsumlenkung bewirkt und weitere Düsen 5' freigibt. In den Fig. 1 und 2 ist das Unterdruckventil 12 dabei als Tellerventil ausgebildet. Bei geöffnetem Unterdruckventil 12 strömt somit Blow-by-Gas sowohl durch die Düsen 5 als auch durch die weiteren Düsen 5'. Beiden Düsen 5 und 5' ist dabei gemein, dass sie den beschleunigten Blow-by-Gasstrom auf die Prallwand 6 lenken und dadurch eine Ölnebelabscheidung an dieser bewirken.Furthermore, it can be provided that the oil mist separator 2 is designed as a switchable oil mist separator and a vacuum valve 12, in particular a spring-loaded vacuum valve 12, which causes a defined flow under a defined negative pressure and further nozzles 5 'releases. In the Fig. 1 and 2 the vacuum valve 12 is designed as a poppet valve. When the vacuum valve 12 is open, thus blow-by gas flows through both the nozzles 5 and the other nozzles 5 '. Both nozzles 5 and 5 'is common that they direct the accelerated blow-by gas flow to the baffle 6 and thereby cause an oil mist separation at this.

In Fig. 1 ist die Lüfterschaufel 9 der Pumpe 3 koaxial zur Achse 13 des Ölnebelabscheiders 2 angeordnet und umläuft diesen radial außerhalb. Demgegenüber ist die Lüfterschaufel 9 der Pumpe 3 gemäß den Fig. 2 in axialer Richtung versetzt zum Ölnebelabscheider 2 angeordnet, wodurch die Bauhöhe der in Fig. 2 gezeigten Variante der Einrichtung 1 leicht zunimmt. Sowohl der Ölnebelabscheider 2 als auch die Pumpe 3 sind gemäß der Fig. 1 in einem gemeinsamen Gehäuse 14 angeordnet, so dass im Vergleich zu einer getrennten Ausbildung der beiden Komponenten ein Gehäuse eingespart werden kann. Im Unterschied dazu sind gemäß Fig. 2 die Pumpe 3 und die Prallwand 6 des Ölnebelabscheiders 2 in einem ersten Gehäuseteil 14' angeordnet, während die Düsen 5 des Ölnebelabscheiders 2 in einem, mit dem ersten Gehäuseteil 14' verbindbaren, zweiten Gehäuseteil 14" angeordnet sind. Dies bietet den Vorteil, dass die einzelnen Gehäuseteile 14' und 14'' eine Zerlegung der Einrichtung 1 erlauben, was insbesondere bei einer Wartung von Vorteil ist. Insgesamt zeichnet sich die Einrichtung 1 durch eine geringe Bauhöhe, beispielsweise 45 mm und eine geringe Breite, beispielsweise 90 mm, aus.In Fig. 1 the fan blade 9 of the pump 3 is arranged coaxially to the axis 13 of the oil mist separator 2 and circulates this radially outside. In contrast, the fan blade 9 of the pump 3 according to the Fig. 2 arranged offset in the axial direction to the oil mist separator 2, whereby the height of the in Fig. 2 shown variant of the device 1 increases slightly. Both the oil mist separator 2 and the pump 3 are according to the Fig. 1 arranged in a common housing 14, so that in comparison to a separate design of the two components, a housing can be saved. In contrast, according to Fig. 2 the pump 3 and the baffle 6 of the oil mist separator 2 are arranged in a first housing part 14 ', while the nozzles 5 of the oil mist separator 2 are arranged in a second housing part 14 "which can be connected to the first housing part 14' individual housing parts 14 'and 14''allow a disassembly of the device 1, which is particularly advantageous during maintenance.Overall, the device 1 is characterized by a low overall height, for example 45 mm and a small width, for example 90 mm.

Im folgenden soll kurz die Funktionsweise der erfindungsgemäßen Einrichtung 1 näher erläutert werden:In the following, the operation of the device 1 according to the invention will be briefly explained in more detail:

Durch die Pumpe 3 wird deren Lüfterrad 4 mit den daran radial außenseitig angeordneten Lüfterschaufeln 9 in eine Drehbewegung um die Achse 13 versetzt, wodurch Blow-by-Gase in Richtung des Ausgangs 10 gedrückt werden und von einem Eingang 15 her angesaugt werden. Treten die ölnebelhaltigen Blow-by-Gase in den Ölnebelabscheider 2 über den Eingang 15 ein, so strömen sie entlang der Strömungsrichtung 16 bis zur Düse 5 bzw. bis zu den Düsen 5, an welchen die Blow-by-Gase beschleunigt werden. Gegenüber den Düsen 5 ist die Prallwand 6 angeordnet, auf welche die Blow-by-Gase aufprallen und dabei zumindest einen Großteil ihres mittransportieren Öls an die Prallwand 6 abgeben. Im weiteren strömen die Blow-by-Gase entlang der Richtung 16 zur Lüfterschaufel 9 und von dort zum Ausgang 10. Das an der Prallwand 6 aufgefangene Öl läuft in Richtung der Schwerkraft und tropft auf den Boden 7, welcher an seiner tiefsten Stelle den Ölablass 8 aufweist. Dieser Ölablass 8 ist vorzugsweise mit dem Ölreservoir verbunden und führt das abgeschiedene Öl dem Ölkreislauf erneut zu. Durch die erfindungsgemäße Einrichtung 1 kann eine besonders kompakte Bauweise erreicht werden, welche zudem ein zusätzliches Gehäuse entweder für den Ölnebelabscheider 2 oder für die Pumpe 3 einspart und darüber hinaus zusätzliche Verbindungsleitungen zwischen dem Ölnebelabscheider 2 und der Pumpe 3 hinfällig werden lässt.By the pump 3, the fan 4 is offset with the radially outwardly arranged fan blades 9 in a rotational movement about the axis 13, whereby blow-by gases are pressed in the direction of the output 10 and are sucked in from an input 15 ago. If the oil-mist-containing blow-by gases enter the oil mist separator 2 via the inlet 15, they flow along the flow direction 16 as far as the flow direction 16 Nozzle 5 or to the nozzles 5, to which the blow-by gases are accelerated. Opposite the nozzles 5, the baffle 6 is arranged, on which bounce the blow-by gases and thereby deliver at least a large part of their transported oil to the baffle 6. In addition, the blow-by gases flow along the direction 16 to the fan blade 9 and from there to the output 10. The collected on the baffle 6 oil runs in the direction of gravity and drips onto the bottom 7, which at its lowest point the oil drain. 8 having. This oil drain 8 is preferably connected to the oil reservoir and leads the separated oil to the oil circuit again. The inventive device 1, a particularly compact design can be achieved, which also saves an additional housing either for the oil mist separator 2 or for the pump 3 and beyond additional connecting lines between the oil mist separator 2 and the pump 3 can be obsolete.

Claims (9)

  1. A device (1) for ventilating a crank case of an internal combustion engine,
    - with a ventilation line, leading from the crank case to a suction line of the internal combustion engine, in the path of which an oil mist separator (2) for separating the oil parts from the blow-by-gases containing the oil mist from the crank case is arranged,
    - with a pump (3) arranged downstream of the oil mist separator (2) for producing a negative suction pressure,
    - wherein the oil-mist separator (2) and the pump (3) are embodied as connected modules, wherein the pump (3) comprises at least one drive and a fan wheel (4) connected thereto, and is arranged together with the oil mist separator (2) in a housing formed in one part or in multiple parts(14, 14', 14''),
    characterized in that the oil mist separator (2) is formed as a switchable oil mist separator comprising a vacuum valve (12).
  2. The device according to claim 1,
    characterized in
    that the pump (3) is formed as an annular ducted fan.
  3. The device according to claim 1 or claim 2,
    characterized in
    that at least a portion of the stator (11) of the pump (3) is integrated in the oil mist separator (2).
  4. The device according to any one of the preceding claims,
    characterized by the features
    - the oil mist separator (2) comprises an impactor,
    - the oil mist separator (2) formed as impactor comprises flow nozzles (5) and a deflector wall (6) opposite thereto.
  5. The device according to claim 4,
    characterized in
    that the vacuum valve (12) releases further flow nozzles (5') at a defined negative pressure.
  6. The device according to any one of the preceding claims,
    characterized in that a fan blade (9) of the pump (3) is arranged coaxial to the axis (13) of the oil mist separator (2), and rotates radially outside around the same.
  7. The device according to any one of the claims 1 to 5, characterized in
    that a fan blade (5) of the pump (3) is arranged offset in axial direction to the oil mist separator (2).
  8. The device according to any one of the preceding claims, characterized in
    that the pump (3) and the deflector wall (6) of the oil mist separator (2) are arranged in a first housing part (14'), while the flow nozzles (5) of the oil mist separator (2) are arranged in a second housing part (14'') which is connectable with the first housing part (14').
  9. A crankcase comprising a device according to any one of the claims 1 to 8.
EP07728890A 2006-05-29 2007-05-08 Device for ventilating a crankcase Active EP2021592B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006024816A DE102006024816A1 (en) 2006-05-29 2006-05-29 Device for venting a crankcase
PCT/EP2007/054437 WO2007137934A2 (en) 2006-05-29 2007-05-08 Device for ventilating a crankcase

Publications (2)

Publication Number Publication Date
EP2021592A2 EP2021592A2 (en) 2009-02-11
EP2021592B1 true EP2021592B1 (en) 2010-03-24

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US (1) US8607767B2 (en)
EP (1) EP2021592B1 (en)
JP (1) JP4991850B2 (en)
CN (1) CN101495720B (en)
DE (2) DE102006024816A1 (en)
WO (1) WO2007137934A2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012200015A1 (en) * 2012-01-02 2013-07-04 Mahle International Gmbh Crankcase ventilation device
DE102012021309A1 (en) * 2012-10-31 2014-04-30 Mann + Hummel Gmbh Crankcase venting device for venting crankcase of internal combustion engine installed in motor vehicle, has movable actuator which is provided with partially open flow opening, when movable actuator is provided in operating state
DE102013215611A1 (en) 2013-08-07 2015-03-05 Mahle International Gmbh Oil Mist Separators

Families Citing this family (66)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7828865B2 (en) 2008-07-31 2010-11-09 Cummins Filtration Ip, Inc. Gas-liquid separator with dual flow impaction and coalescence
US8048212B2 (en) 2004-09-21 2011-11-01 Cummins Filtration Ip, Inc. Inertial gas-liquid separator with valve and variable flow actuator
US7648543B2 (en) 2004-09-21 2010-01-19 Cummins Filtration Ip Inc. Multistage variable impactor
US7614390B2 (en) 2007-08-23 2009-11-10 Cummins Filtration Ip Inc. Two stage drainage gas-liquid separator
US7406960B2 (en) 2004-12-10 2008-08-05 Fleetguard, Inc. Oil mist removal device with oil fill
US8075654B2 (en) 2004-09-21 2011-12-13 Cummins Filtration Ip, Inc. Gas-liquid separator with expansion transition flow
US7896946B1 (en) 2004-09-21 2011-03-01 Cummins Filtration Ip, Inc. Multistage multicontroller variable impactor
US7964009B2 (en) 2004-09-21 2011-06-21 Cummins Filtration Ip, Inc. Inertial gas-liquid separator with axially variable orifice area
US7473291B2 (en) 2004-09-21 2009-01-06 Cummins Filtration Ip, Inc. Inertial gas-liquid separator with variable flow actuator
US7678169B1 (en) 2006-07-12 2010-03-16 Cummins Filtration Ip Inc. Oil fill cap with air/oil separator
US7857883B2 (en) 2007-10-17 2010-12-28 Cummins Filtration Ip, Inc. Inertial gas-liquid separator with constrictable and expansible nozzle valve sidewall
DE102008044857B4 (en) 2008-05-09 2011-08-25 Montaplast GmbH, 51597 Device for separating oil particles from the crankcase ventilation gas of an internal combustion engine
DE202008006719U1 (en) * 2008-05-16 2009-09-24 Mann+Hummel Gmbh Separator for crankcase ventilation of an internal combustion engine
DE102009024701B4 (en) 2009-06-12 2016-05-04 Mahle International Gmbh Oil Mist Separators
DE102009035742B4 (en) 2009-08-01 2022-03-31 Elringklinger Ag Oil mist separating device for a crankcase ventilation system
US8152884B1 (en) 2009-11-20 2012-04-10 Cummins Filtration Ip Inc. Inertial gas-liquid impactor separator with flow director
JP5475424B2 (en) * 2009-12-16 2014-04-16 株式会社マーレ フィルターシステムズ Oil mist separator
FR2955619B1 (en) * 2010-01-25 2012-07-20 Ali Sebbah DEVICE FOR EMPTYING CONFINED AIR IN A THERMAL MOTOR WITH ELECTRONIC INJECTION OR TURBOCHARGER
GB201001876D0 (en) * 2010-02-05 2010-03-24 Parker Hannifin U K Ltd A separator
CN101884862A (en) * 2010-04-09 2010-11-17 江苏金通灵风机股份有限公司 Single-stage high-speed centrifugal fan oil mist separator
WO2011161796A1 (en) 2010-06-24 2011-12-29 東京濾器株式会社 Oil mist separator
US9103246B2 (en) 2010-11-02 2015-08-11 Ford Global Technologies, Llc System and method for reducing vacuum degradation in a vehicle
JP5776172B2 (en) * 2010-12-09 2015-09-09 スズキ株式会社 Vacuum pump mounting structure
GB201113072D0 (en) * 2011-07-29 2011-09-14 Parker Hannifin Mfg Uk Ltd A separator
DE102011087146A1 (en) * 2011-11-25 2013-05-29 Mahle International Gmbh oil separator
CN107469470B (en) 2012-07-31 2019-12-24 康明斯过滤Ip公司 Gas-liquid separator
US9138671B2 (en) 2012-08-30 2015-09-22 Cummins Filtration Ip, Inc. Inertial gas-liquid separator and porous collection substrate for use in inertial gas-liquid separator
JP6126885B2 (en) * 2013-03-27 2017-05-10 東京濾器株式会社 Oil mist separator
DE112014001711T5 (en) * 2013-03-28 2015-12-10 Cummins Filtration Ip, Inc. Air oil separator with jet-reinforced impaction and associated process
JP6092746B2 (en) * 2013-10-01 2017-03-08 株式会社ニフコ Oil separator
DE102013111955A1 (en) * 2013-10-30 2015-04-30 Thyssenkrupp Presta Teccenter Ag Controllable oil separator
US9890671B2 (en) * 2013-11-18 2018-02-13 Cummins Filtration Ip, Inc. Crankcase ventilation system having an oil jet pump with an integrated check valve
US9732707B1 (en) * 2013-12-09 2017-08-15 High Output Technology, LLC Vent for engine crankcases
DE102013113963A1 (en) * 2013-12-12 2015-06-18 Dr. Ing. H.C. F. Porsche Aktiengesellschaft oil tank
DE102014223291A1 (en) * 2014-11-14 2016-05-19 Mahle International Gmbh liquid separation
DE102014223290A1 (en) * 2014-11-14 2016-05-19 Mahle International Gmbh Crankcase breather
DE102015202946A1 (en) * 2015-02-18 2016-08-18 Mahle International Gmbh Pumping device for driving blow-by gas
DE112015006228T5 (en) 2015-03-30 2017-11-09 Cummins Filtration Ip, Inc. Multi-stage rotating droplet separator devices
CN107614841B (en) 2015-06-09 2020-02-21 康明斯过滤Ip公司 Systems and methods for contacting seals using low friction rotating coalescers
DE112016001918T5 (en) 2015-06-09 2018-01-11 Cummins Filtration Ip, Inc. Systems and methods for rotary separators that maintain positive feedback via a dynamic seal
DE102015213528A1 (en) * 2015-07-17 2017-01-19 Mahle International Gmbh Ölnebelabscheideeinrichtung
DE102015213531A1 (en) * 2015-07-17 2017-01-19 Mahle International Gmbh Impactor for separating liquid from a gas flow
DE112016003212T5 (en) 2015-08-21 2018-04-19 Cummins Filtration Ip, Inc. Filter medium and medium package for fast rotating crankcase ventilation
CN107921346B (en) 2015-08-28 2020-01-07 康明斯过滤Ip公司 Rotating coalescer element with directional liquid drain and gas outlet
DE102015221194A1 (en) * 2015-10-29 2017-05-04 Mahle International Gmbh Ölnebelabscheideeinrichtung, in particular for a crankcase ventilation device of an internal combustion engine
US10352209B2 (en) 2015-11-25 2019-07-16 Solberg Mfg., Inc. Pressure regulator assemblies
DE102015224222A1 (en) * 2015-12-03 2017-06-08 Mahle International Gmbh Liquid separation device for the separation of liquid
DE102016203770B4 (en) 2016-03-08 2023-09-07 Mahle International Gmbh liquid mist separation device
DE102016203769A1 (en) 2016-03-08 2017-09-14 Mahle International Gmbh Flüssigkeitsnebelabscheideeinrichtung
DE102016206287A1 (en) 2016-04-14 2017-10-19 Mahle International Gmbh Method for regulating a pressure in a crankcase
DE102016206285A1 (en) 2016-04-14 2017-10-19 Mahle International Gmbh Method for regulating a pressure in a crankcase
EP3449106B1 (en) 2016-04-28 2021-04-07 Cummins Filtration IP, Inc. Inside-out rotating coalescer with gas exit through hollow shaft
DE102016208248B3 (en) * 2016-05-13 2017-06-14 Bayerische Motoren Werke Aktiengesellschaft Oil separator for separating oil from aerosol in an internal combustion engine
DE102016209635B4 (en) * 2016-06-02 2024-04-25 Mahle International Gmbh Method for operating a crankcase ventilation system and internal combustion engine operable according to this method
DE102016211265B4 (en) * 2016-06-23 2018-01-04 Polytec Plastics Germany Gmbh & Co. Kg Flow control valve
DE102017212861B4 (en) * 2016-07-27 2021-03-18 BRUSS Sealing Systems GmbH Oil separation device and arrangement for oil separation in an internal combustion engine
DE102016213798A1 (en) * 2016-07-27 2018-02-01 Mahle International Gmbh impactor
DE202016104363U1 (en) * 2016-08-08 2017-11-10 Woco Industrietechnik Gmbh Valve
DE102016217801A1 (en) 2016-09-16 2018-03-22 Mahle International Gmbh separating
DE102017200359A1 (en) * 2017-01-11 2018-07-12 Mahle International Gmbh oil separator
DE102017200848A1 (en) 2017-01-19 2018-07-19 Mahle International Gmbh separating
DE202017101622U1 (en) * 2017-03-20 2017-03-27 Polytec Plastics Germany Gmbh & Co. Kg Oil separation
DE102018211450B3 (en) * 2018-07-11 2019-08-22 Bayerische Motoren Werke Aktiengesellschaft Diagnostic connection device of a ventilation device for an internal combustion engine
IT201800020413A1 (en) * 2018-12-20 2020-06-20 Ufi Filters Spa BLOW-BY GAS FILTRATION ASSEMBLY
DE102021200448B4 (en) * 2021-01-19 2022-10-06 BRUSS Sealing Systems GmbH Oil separator for crankcase ventilation of an internal combustion engine
DE102022106850A1 (en) * 2022-03-23 2023-09-28 Elringklinger Ag Cylinder head cover for an internal combustion engine

Family Cites Families (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1872609A (en) 1930-01-30 1932-08-16 Gen Motors Corp Crankcase ventilation
US3822532A (en) * 1971-11-12 1974-07-09 Kirk And Blum Mfg Co Oil mist recovery apparatus
JPS6390013A (en) 1986-10-01 1988-04-20 Sharp Corp Magnetic head
JPS6390013U (en) * 1986-11-29 1988-06-11
DE3702765A1 (en) * 1987-01-30 1988-08-11 Kessler & Luch Gmbh Oil mist eliminator
JPH0725418B2 (en) 1987-11-02 1995-03-22 澁谷工業株式会社 Line number changing and direction changing device
JPH01122821U (en) * 1988-01-29 1989-08-21
JPH0583310A (en) 1991-09-20 1993-04-02 Nec Corp Automatic frequency control circuit
JP2564788Y2 (en) * 1992-04-15 1998-03-09 株式会社豊田自動織機製作所 Oil separator for PCV system
US5542402A (en) * 1995-04-05 1996-08-06 Ford Motor Company Positive crankcase ventilation system with a centrifugal oil separator
JP3313553B2 (en) * 1995-09-29 2002-08-12 株式会社 マーレ テネックス Oil mist separator
US5803025A (en) * 1996-12-13 1998-09-08 Caterpillar Inc. Blowby disposal system
JP4010032B2 (en) * 1997-10-13 2007-11-21 株式会社Ｉｈｉ Apparatus for separating oil droplets from cooled pressurized air in a gas turbine engine
JPH11141325A (en) 1997-11-11 1999-05-25 Toyota Autom Loom Works Ltd Oil reflux device for blowby gas
DE19923093A1 (en) 1999-05-20 2000-11-23 Mann & Hummel Filter Fluid separator for purifying IC engine crankshaft gases has a separator cartridge with an elastic end plate on at least one of its front sides corresponding to a receiver
US6290738B1 (en) 1999-07-16 2001-09-18 Nelson Industries, Inc. Inertial gas-liquid separator having an inertial collector spaced from a nozzle structure
DE10044615A1 (en) * 2000-09-09 2002-04-04 Mahle Filtersysteme Gmbh Ventilation device for a crankcase
WO2002070871A2 (en) * 2001-03-07 2002-09-12 Hengst Gmbh & Co. Kg Device for the ventilation of the crankcase of an internal combustion engine
DE10127819A1 (en) * 2001-06-07 2003-01-02 Bosch Gmbh Robert Oil separator for crankcase gases of an internal combustion engine
DE20211329U1 (en) * 2002-07-26 2003-12-04 Hengst Gmbh & Co.Kg Oil separator for separating oil from the crankcase ventilation gas of an internal combustion engine
AU2003287676A1 (en) * 2002-11-18 2004-06-15 Donaldson Company, Inc. Apparatus and method for filtering an aerosol-bearing gas stream
US6907869B2 (en) * 2003-01-17 2005-06-21 Parker-Hannifin Corporation Filter element and assembly with continuous drain
DE20302824U1 (en) * 2003-02-21 2004-07-08 Hengst Gmbh & Co.Kg Oil separator for cleaning crankcase ventilation gas of an internal combustion engine containing oil mist
AT412070B (en) * 2003-04-25 2004-09-27 Lechner Josef Ing DEVICE FOR SEPARATING A LIQUID FOG FROM AN EXHAUST AIR
US7080636B2 (en) * 2003-05-05 2006-07-25 Dichtungstechnik G. Bruss Gmbh & Co. Kg Oil separating device for a combustion engine
US6892715B2 (en) * 2003-07-03 2005-05-17 Cummins, Inc. Crankcase ventilation system
DE10331344B4 (en) * 2003-07-11 2015-10-22 Daimler Ag Method for venting a crankcase of an internal combustion engine
DE20318633U1 (en) * 2003-12-02 2005-04-14 Hengst Gmbh & Co.Kg Device for return and degreasing of crank housing ventilation gases comprises one module attachable by flange connection to engine producing flow connections for ventilation pipe and oil return pipe
US7204241B2 (en) * 2004-08-30 2007-04-17 Honeywell International, Inc. Compressor stage separation system
US7473291B2 (en) 2004-09-21 2009-01-06 Cummins Filtration Ip, Inc. Inertial gas-liquid separator with variable flow actuator
DE102004053946A1 (en) * 2004-11-09 2006-05-11 Daimlerchrysler Ag Device for venting a crankcase of a supercharged internal combustion engine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012200015A1 (en) * 2012-01-02 2013-07-04 Mahle International Gmbh Crankcase ventilation device
DE102012021309A1 (en) * 2012-10-31 2014-04-30 Mann + Hummel Gmbh Crankcase venting device for venting crankcase of internal combustion engine installed in motor vehicle, has movable actuator which is provided with partially open flow opening, when movable actuator is provided in operating state
DE102012021309B4 (en) * 2012-10-31 2014-08-07 Mann + Hummel Gmbh Crankcase ventilation device
DE102013215611A1 (en) 2013-08-07 2015-03-05 Mahle International Gmbh Oil Mist Separators

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WO2007137934A3 (en) 2009-02-26
CN101495720A (en) 2009-07-29
JP4991850B2 (en) 2012-08-01
WO2007137934A2 (en) 2007-12-06
US20100294218A1 (en) 2010-11-25
JP2009539013A (en) 2009-11-12
US8607767B2 (en) 2013-12-17
EP2021592A2 (en) 2009-02-11
CN101495720B (en) 2011-02-02
DE502007003230D1 (en) 2010-05-06
DE102006024816A1 (en) 2007-12-06

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