EP0287756A2 - De-aeration device with integrated oil separator - Google Patents

De-aeration device with integrated oil separator Download PDF

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Publication number
EP0287756A2
EP0287756A2 EP88101459A EP88101459A EP0287756A2 EP 0287756 A2 EP0287756 A2 EP 0287756A2 EP 88101459 A EP88101459 A EP 88101459A EP 88101459 A EP88101459 A EP 88101459A EP 0287756 A2 EP0287756 A2 EP 0287756A2
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EP
European Patent Office
Prior art keywords
ventilation device
venting
oil
crankcase
ventilation
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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
EP88101459A
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German (de)
French (fr)
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EP0287756B1 (en
EP0287756A3 (en
Inventor
Klaus Gröger
Winfried Dipl.-Ing. Fh. Distelrath
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Dr Ing HCF Porsche AG
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Dr Ing HCF Porsche AG
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B75/22—Multi-cylinder engines with cylinders in V, fan, or star arrangement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00—Crankcase ventilating or breathing
    • F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00—Crankcase ventilating or breathing
    • F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
    • F01M13/0416—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil arranged in valve-covers

Definitions

  • the invention relates to a ventilation device with an integrated oil separator according to the preamble of claim 1.
  • DE-OS 3 509 439 shows a ventilation system for internal combustion engine crankcases, which is provided above a cylinder head and forms a unit with a cover. This design not only takes up a relatively large amount of space in the area of the cylinder head, where a camshaft usually runs, but also impairs the free design of the cover.
  • the object of the invention is therefore to provide a ventilation device with an integrated oil separator for an internal combustion engine which, with good function, is simple and inexpensive to manufacture and can be easily inserted into the crankcase without influencing other components.
  • the ventilation device with integrated oil separator is formed by only two pot-like components, namely an upper part and a lower part, which are easy to manufacture and assemble. As a unit, they can be easily inserted into the crankcase in a wall that extends between V-shaped rows of cylinders of the internal combustion engine.
  • the weight and the manufacturing costs of the ventilation device can be influenced favorably if the upper part and the lower part are made of plastic and are connected to one another by means of a permanent plug connection. If the baffles are formed by ribs provided on the upper and lower part, a functional guidance of the ventilation medium is ensured with a good oil separation effect.
  • the ventilation device 1 is fastened to a crankcase 2 - FIG. 2 - of an internal combustion engine (not shown in more detail) and has the task of creating an oil-enriched ventilation medium in a space 3 of the crankcase 2 during operation of the internal combustion engine - it contains blow-by gases - between Dispose of cylinders and pistons in room 3.
  • the oil that is added to the ventilation medium is to be separated, which is done with the oil separator 4, which is integrated in the ventilation device 1.
  • crankcase 2 Between two V-shaped rows of cylinders 5, 6, which form a unit with the crankcase 2, this crankcase has an elevation 7 which is delimited by a horizontal wall 8.
  • the wall 8 receives the ventilation device 1 with the oil separator 4 provided with a plurality of baffles 9.
  • the ventilation device 1 and the oil separator 4 are part of a housing 10 which is formed by an upper part 11 and a lower part 12.
  • the upper part 11 has an approximately horizontally extending cover 13 and upright boundary walls 14, 15;
  • the lower part 12 has a bottom 18 extending transversely to the upright boundary walls 16, 17, the boundary walls 16, 17 resting in an opening 10 ⁇ of the wall 10.
  • the open sides of the upper part 11 and the lower part 12 face each other and the upright boundary walls 14, 15 and 16, 17 overlap.
  • the boundary walls 16, 17 run in sections within the boundary walls 14, 15.
  • the lower part 12 is dimensioned so that there are passage gaps 19, 20 between the boundary walls 14, 15 and 16, 17, respectively, which lead into the interior 21 of the housing 10 lead.
  • the boundary walls 14, 15 of the upper part 11 are supported by flanges 22, 23 on the wall 8 of the crankcase 2 and are fastened at 24, 25, 26 and 27 by means of screws 28.
  • the respective screw 28 penetrates the flange 22 or 23 and is screwed into a thread 29 of the crankcase 2.
  • the upper part 11 and the lower part 12 can each be made of a light metal alloy.
  • connection screws 30 are used, which are carried out by mutually supporting fastening eyes 31, 32, arranged within the upper part 11 and the lower part 12; Fig. 4.
  • the upper part 11 and the lower part 12 are made of plastic.
  • the lower part 12 has at least one upright receiving part 33, which is led away from the base 18 and has a through-channel 34.
  • a support 36 which is attached to the cover 13 of the upper part 11, is brought up to the receiving part 33 with a shoulder 35.
  • the support 36 has an extension 37, which extends within the through channel 34 and is supported on its free side 38 with a thickening 39 in a local extension 40 of the through channel 34.
  • the thickening 39 is produced by heat treatment of the pin 37.
  • connections of the same principle are also provided at 41 and 42.
  • flanges 22, 23 of the plastic upper part 11 in the area of the screws 28 are metallic Support bushings 43 provided.
  • a sealing body 45 can be provided between a support flange 44 of the upper part 11 and the wall 8 of the crankcase 2.
  • the baffles 9 of the oil separator 4 are provided on the upper part 11 and lower part 12 and are formed by webs 46, 47 which overlap in sections. 1, the webs 46, 47 form a kind of labyrinth through which the gases of the ventilation medium escape and the oil contained therein is separated.
  • the lower part 12 has an inlet 48 which is provided adjacent to the boundary wall 16.
  • the inlet 48 is provided with a deflecting element 49 which prevents the entry of oil particles into the housing 10 of oil particles accelerated in the direction of rotation A of the crankshaft, not shown.
  • At 50 there is an outlet of the ventilation medium freed from oil, the outlet 50 being attached to the upper part 11 on the side opposite the inlet 48.
  • the outlet 50 comprises a pipe socket 51 which is connected to the intake pipe system of the internal combustion engine, not shown.
  • the bottom 18 of the lower part 12 is provided on opposite sides - seen in the longitudinal direction B-B of the internal combustion engine - with outlet openings 52, 53, which likewise comprise deflecting elements 54 which have the function of the deflecting element 49. So that the medium flows to the oil outlet openings 52, 53, the base 18 has a gradient G angle at least in the transverse direction (FIG. 2) with respect to a horizontal H.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)

Abstract

Die Entlüftungsvorrichtung ist an einem Kurbelgehäuse einer Brennkraftmaschine mit vorzugsweise V-förmigen Zylinderreihen angeordnet und umfasst ein Gehäuse (10) mit einem Ölabscheider. Das Gehäuse wird aus Gründen baulicher Vereinfachung durch ein Oberteil (11) und ein Unterteil (12) gebildet, die beide topfartige Gestalt, aufrechte, sich überdeckende Begrenzungswandungen (14-17) aufweisen und eine Einheit bilden. Die Begrenzungswandungen des Oberteils stützen sich am Kurbelgehäuse mittels Flanschen (22) ab, was eine einfache Montage der Entlüftungsvorrichtung sicherstellt.The ventilation device is arranged on a crankcase of an internal combustion engine with preferably V-shaped rows of cylinders and comprises a housing (10) with an oil separator. For reasons of structural simplification, the housing is formed by an upper part (11) and a lower part (12), both of which have a pot-like shape, upright, overlapping boundary walls (14-17) and form a unit. The boundary walls of the upper part are supported on the crankcase by means of flanges (22), which ensures simple assembly of the ventilation device.

Description

Die Erfindung bezieht sich auf eine Entlüftungsvorrichtung mit integriertem Ölabscheider nach dem Oberbegriff des Anspruchs 1.The invention relates to a ventilation device with an integrated oil separator according to the preamble of claim 1.

Die DE-OS 3 509 439 zeigt ein Lüftungssystem für Brennkraftmaschinen-­Kurbelgehäuse, das oberhalb eines Zylinderkopfs vorgesehen ist und mit einem Deckel eine Einheit bildet. Diese Ausführung beansprucht nicht nur relativ viel Raum im Bereich des Zylinderkopfs, wo üblicherweise eine Nockenwelle verläuft, sondern beeinträchtigt auch die freie Gestaltung des Deckels.DE-OS 3 509 439 shows a ventilation system for internal combustion engine crankcases, which is provided above a cylinder head and forms a unit with a cover. This design not only takes up a relatively large amount of space in the area of the cylinder head, where a camshaft usually runs, but also impairs the free design of the cover.

Aus der US-PS 3 469 565 ist eine Entlüftungsvorrichtung mit Ölabscheider bekannt, die aufgrund einer Vielzahl unterschiedlicher Bauteile bezüglich Herstellung und Montage aufwendig ist.From US Pat. No. 3,469,565 a ventilation device with an oil separator is known, which is complex in terms of manufacture and assembly due to a large number of different components.

Aufgabe der Erfindung ist es daher, eine Entlüftungsvorrichtung mit integriertem Ölabscheider für eine Brennkraftmaschine zu schaffen, die bei guter Funktion im Aufbau einfach sowie kostengünstig herstellbar ist und sich leicht, ohne andere Bauteile zu beeinflussen, in das Kurbelgehäuse einsetzen lässt.The object of the invention is therefore to provide a ventilation device with an integrated oil separator for an internal combustion engine which, with good function, is simple and inexpensive to manufacture and can be easily inserted into the crankcase without influencing other components.

Erfindungsgemäß wird diese Aufgabe durch die kennzeichnenden Merkmale des Patentanspruchs 1 gelöst. Weitere, die Erfindung ausgestaltende Merkmale sind in den Unteransprüchen enthalten.According to the invention, this object is achieved by the characterizing features of patent claim 1. Further features embodying the invention are contained in the subclaims.

Die mit der Erfindung hauptsächlich erzielten Vorteile sind darin zu sehen, daß die Entlüftungsvorrichtung mit integriertem Ölabscheider (Schwerkraft­ölabscheider) durch lediglich zwei topfartige Bauteile, nämlich ein Oberteil und ein Unterteil, gebildet ist, die leicht herstellbar und montierbar sind. Als Einheit lassen sie sich ohne weiteres in das Kurbelgehäuse einsetzen und zwar in eine Wand, die sich zwischen V-förmigen Zylinderreihen der Brennkraftmaschine erstreckt.The main advantages achieved with the invention are the fact that the ventilation device with integrated oil separator (gravity oil separator) is formed by only two pot-like components, namely an upper part and a lower part, which are easy to manufacture and assemble. As a unit, they can be easily inserted into the crankcase in a wall that extends between V-shaped rows of cylinders of the internal combustion engine.

Das Gewicht und die Herstellkosten der Entlüftungsvorrichtung lassen sich dadurch günstig beeinflussen, wenn das Oberteil und das Unterteil aus Kunststoff und über eine unlösbare Steckverbindung miteinander verbunden sind. Werden die Schikanen durch am Oberteil und Unterteil vorgesehen Rippen gebildet, so ist bei guter Ölabscheidewirkung eine funktionsgerechte Führung des Entlüftungsmediums sichergestellt.The weight and the manufacturing costs of the ventilation device can be influenced favorably if the upper part and the lower part are made of plastic and are connected to one another by means of a permanent plug connection. If the baffles are formed by ribs provided on the upper and lower part, a functional guidance of the ventilation medium is ensured with a good oil separation effect.

In der Zeichnung wird ein Ausführungsbeispiel der Erfindung gezeigt, das nachstehend näher beschrieben ist. Es zeigt

  • Fig. 1 eine Ansicht von oben auf eine Entlüftungsvorrichtung nach der Erfindung,
  • Fig. 2 einen Schnitt nach der Linie II-II der Fig. 1, wobei dieser Schnitt auch ein Teilquerschnitt der Brennkraftmaschine ist,
  • Fig. 3 einen Schnitt nach der Linie III-III der Fig. 1,
  • Fig. 4 eine Teilansicht nach Fig. 3 mit einer anderen Ausführungsform.
In the drawing, an embodiment of the invention is shown, which is described in more detail below. It shows
  • 1 is a top view of a ventilation device according to the invention,
  • 2 shows a section along the line II-II of FIG. 1, this section also being a partial cross section of the internal combustion engine,
  • 3 shows a section along the line III-III of FIG. 1,
  • Fig. 4 is a partial view of FIG. 3 with another embodiment.

Die Entlüftungsvorrichtung 1 ist an einem Kurbelgehäuse 2 - Fig. 2 - einer nicht näher dargestellten Brennkraftmaschine befestigt und hat die Aufgabe, das in einem Raum 3 des Kurbelgehäuses 2 beim Betrieb der Brennkraftmaschine entstehende, mit Öl angereicherte Entlüftungsmedium - es enthalt Durch­blasgase -, das zwischen Zylinder und Kolben in den Raum 3 eintritt, zu entsorgen. Dabei ist das Öl, das dem Entlüftungsmedium beigemengt ist, zu trennen, was mit dem Ölabscheider 4 erfolgt, der in die Entlüftungs­vorrichtung 1 integriert ist.The ventilation device 1 is fastened to a crankcase 2 - FIG. 2 - of an internal combustion engine (not shown in more detail) and has the task of creating an oil-enriched ventilation medium in a space 3 of the crankcase 2 during operation of the internal combustion engine - it contains blow-by gases - between Dispose of cylinders and pistons in room 3. The oil that is added to the ventilation medium is to be separated, which is done with the oil separator 4, which is integrated in the ventilation device 1.

Zwischen zwei V-förmig angeordneten Zylinderreihen 5, 6, die mit dem Kurbelgehäuse 2 eine Einheit bilden, weist dieses Kurbelgehäuse eine Erhöhung 7 auf, die von einer horizontalen Wand 8 begrenzt wird. Die Wand 8 nimmt die Entlüftungsvorrichtung 1 mit dem mit mehreren Schikanen 9 versehenen Ölabscheider 4 auf.Between two V-shaped rows of cylinders 5, 6, which form a unit with the crankcase 2, this crankcase has an elevation 7 which is delimited by a horizontal wall 8. The wall 8 receives the ventilation device 1 with the oil separator 4 provided with a plurality of baffles 9.

Die Entlüftungsvorrichtung 1 und der Ölabscheider 4 sind Bestandteil eines Gehäuses 10, das durch ein Oberteil 11 und ein Unterteil 12 gebildet wird. So weist das Oberteil 11 einen etwa horizontal verlaufenden Deckel 13 und aufrechte Begrenzungswandungen 14, 15 auf; das Unterteil 12 einen quer zu aufrechten Begrenzungswandungen 16, 17 sich erstreckenden Boden 18, wobei die Begrenzungswandungen 16, 17 in einer Öffnung 10ʹ der Wandung 10 ruhen. Die offenen Seiten des Oberteils 11 und des Unterteils 12 sind einander zugekehrt und die aufrechten Begrenzungswandungen 14, 15 bzw. 16, 17 überdecken sich. Anders ausgedrückt, die Begrenzungswandungen 16, 17 verlaufen abschnittsweise innerhalb der Begrenzungswandungen 14, 15. Dabei ist das Unterteil 12 maßlich so gestaltet, daß zwischen den Begrenzungs­wandungen 14, 15 bzw. 16, 17 Durchgangsspalte 19, 20 sich ergeben, die in den Innenraum 21 des Gehäuses 10 führen.The ventilation device 1 and the oil separator 4 are part of a housing 10 which is formed by an upper part 11 and a lower part 12. The upper part 11 has an approximately horizontally extending cover 13 and upright boundary walls 14, 15; the lower part 12 has a bottom 18 extending transversely to the upright boundary walls 16, 17, the boundary walls 16, 17 resting in an opening 10ʹ of the wall 10. The open sides of the upper part 11 and the lower part 12 face each other and the upright boundary walls 14, 15 and 16, 17 overlap. In other words, the boundary walls 16, 17 run in sections within the boundary walls 14, 15. The lower part 12 is dimensioned so that there are passage gaps 19, 20 between the boundary walls 14, 15 and 16, 17, respectively, which lead into the interior 21 of the housing 10 lead.

Die Begrenzungswandungen 14, 15 des Oberteils 11 stützen sich mittels Flanschen 22, 23 an der Wand 8 des Kurbelgehäuses 2 ab und sind bei 24, 25, 26 und 27 mittels Schrauben 28 befestigt. Die jeweilige Schraube 28 durchdringt den Flansch 22 bzw. 23 und ist in ein Gewinde 29 des Kurbel­gehäuses 2 eingedreht.The boundary walls 14, 15 of the upper part 11 are supported by flanges 22, 23 on the wall 8 of the crankcase 2 and are fastened at 24, 25, 26 and 27 by means of screws 28. The respective screw 28 penetrates the flange 22 or 23 and is screwed into a thread 29 of the crankcase 2.

Das Oberteil 11 und das Unterteil 12 können jeweils aus einer Leichtmetall-­Legierung hergestellt sein. Zu ihrer Verbindung dienen Schrauben 30, die durch sich gegenseitig abstützende Befestigungsaugen 31, 32, angeordnet innerhalb des Oberteils 11 und des Unterteils 12, durchgeführt sind; Fig. 4.The upper part 11 and the lower part 12 can each be made of a light metal alloy. For their connection screws 30 are used, which are carried out by mutually supporting fastening eyes 31, 32, arranged within the upper part 11 and the lower part 12; Fig. 4.

Gemäß Fig. 3 bestehen das Oberteil 11 und das Unterteil 12 aus Kunststoff. Dabei weist das Unterteil 12 mindestens ein aufrechtes, vom Boden 18 weggeführtes Aufnahmeteil 33 mit einem Durchgangskanal 34 auf. An das Aufnahmeteil 33 mit einer Schulter 35 herangeführt ist eine Stütze 36, die am Deckel 13 des Oberteils 11 angebracht ist. Die Stütze 36 besitzt einen als Verlängerung ausgebildeten Zapfen 37, der sich innerhalb des Durch­gangskanals 34 erstreckt, und auf seiner freien Seite 38 mit einer Verdickung 39 in einer örtlichen Erweiterung 40 des Durchgangskanals 34 abstützt. Die Verdickung 39 wird durch Wärmebehandlung des Zapfens 37 hergestellt. Um eine funktionsgerechte Abstützung des Oberteils 11 und des Unterteils 12 zu bewerkstelligen, sind prinzipgleiche Verbindungen noch bei 41 und 42 vorgesehen. Außerdem sind die Flansche 22, 23 des aus Kunststoff gefertigten Oberteils 11 im Bereich der Schrauben 28 mit metallischen Stützbüchsen 43 versehen. Darüber hinaus kann zwischen einem Stützflansch 44 des Oberteils 11 und der Wand 8 des Kurbelgehäuses 2 ein Dichtkörper 45 vorgesehen sein.3, the upper part 11 and the lower part 12 are made of plastic. The lower part 12 has at least one upright receiving part 33, which is led away from the base 18 and has a through-channel 34. A support 36, which is attached to the cover 13 of the upper part 11, is brought up to the receiving part 33 with a shoulder 35. The support 36 has an extension 37, which extends within the through channel 34 and is supported on its free side 38 with a thickening 39 in a local extension 40 of the through channel 34. The thickening 39 is produced by heat treatment of the pin 37. In order to provide functional support for the upper part 11 and the lower part 12, connections of the same principle are also provided at 41 and 42. In addition, the flanges 22, 23 of the plastic upper part 11 in the area of the screws 28 are metallic Support bushings 43 provided. In addition, a sealing body 45 can be provided between a support flange 44 of the upper part 11 and the wall 8 of the crankcase 2.

Die Schikanen 9 des Ölabscheiders 4 sind am Oberteil 11 und Unterteil 12 vorgesehen und werden durch Stege 46, 47 gebildet, die sich abschnittsweise überdecken. Die Stege 46, 47 bilden gemäß Fig. 1 eine Art Labyrinth, durch das die Gase des Entlüftungsmediums entweichen und das darin enthaltene Öl abgeschieden wird.The baffles 9 of the oil separator 4 are provided on the upper part 11 and lower part 12 and are formed by webs 46, 47 which overlap in sections. 1, the webs 46, 47 form a kind of labyrinth through which the gases of the ventilation medium escape and the oil contained therein is separated.

Das Unterteil 12 weist einen Eintritt 48 auf, der benachbart der Be­grenzungswand 16 vorgesehen ist. Der Eintritt 48 ist mit einem Abweis­element 49 versehen, das den Zugang von Ölpartikeln ins Gehäuse 10 von in Drehrichtung A der nicht gezeigten Kurbelwelle beschleunigten Ölpartikeln verhindert. Bei 50 ist ein Austritt des vom Öl befreiten Entlüftungsmediums vorgesehen, wobei der Austritt 50 auf der dem Eintritt 48 gegenüber­liegenden Seite am Oberteil 11 angebracht ist. Der Austritt 50 umfasst einen Rohrstutzen 51, der mit der nicht dargestellten Saugrohranlage der Brennkraftmaschine verbunden ist.The lower part 12 has an inlet 48 which is provided adjacent to the boundary wall 16. The inlet 48 is provided with a deflecting element 49 which prevents the entry of oil particles into the housing 10 of oil particles accelerated in the direction of rotation A of the crankshaft, not shown. At 50 there is an outlet of the ventilation medium freed from oil, the outlet 50 being attached to the upper part 11 on the side opposite the inlet 48. The outlet 50 comprises a pipe socket 51 which is connected to the intake pipe system of the internal combustion engine, not shown.

Der Boden 18 des Unterteils 12 ist an gegenüberliegenden Seiten - in Längsrichtung B-B der Brennkraftmaschine gesehen - mit Austrittsöffnungen 52, 53 versehen, die ebenfalls Abweiselemente 54 umfassen, die die Funktion des Abweiselements 49 haben. Damit das Medium zu den Ölaustrittsöffnungen 52, 53 fließt, weist der Boden 18 zumindest in Querrichtung (Fig. 2) gegenüber einer Horizontalen H ein Gefälle G - Winkel - auf.The bottom 18 of the lower part 12 is provided on opposite sides - seen in the longitudinal direction B-B of the internal combustion engine - with outlet openings 52, 53, which likewise comprise deflecting elements 54 which have the function of the deflecting element 49. So that the medium flows to the oil outlet openings 52, 53, the base 18 has a gradient G angle at least in the transverse direction (FIG. 2) with respect to a horizontal H.

Claims (13)

1. Entlüftungsvorrichtung mit integriertem Ölabscheider für ein Kurbel­gehäuse einer Brennkraftmaschine, vorzugsweise mit V-förmig angeordneten Zylinderreihen, wobei die Entlüftungsvorrichtung und der Ölabscheider Bestandteil eines mit Schikanen versehenen Gehäuses sind, dadurch gekennzeichnet, daß das Gehäuse (10) im wesentlichen nur durch ein Oberteil (11) und ein Unterteil (12) gebildet wird, die topfartige Gestalt und aufrechte, sich überdeckende Begrenzungswandungen (14, 15 und 16, 17) aufweisen, wovon die Begrenzungswandungen (14, 15) des Oberteils (11) sich an einer zwischen den Zylinderreihen (5, 6) horizontal verlaufenden, eine Öffnung (10ʹ) zur Aufnahme des Unterteils (12) umfassenden Wand (10) des Kurbelgehäuses (2) abstützen.1. ventilation device with an integrated oil separator for a crankcase of an internal combustion engine, preferably with rows of cylinders arranged in a V-shape, the ventilation device and the oil separator being part of a housing provided with baffles, characterized in that the housing (10) consists essentially only of an upper part ( 11) and a lower part (12) is formed which has a pot-like shape and upright, overlapping boundary walls (14, 15 and 16, 17), of which the boundary walls (14, 15) of the upper part (11) are located on one between the rows of cylinders (5, 6) horizontally extending, an opening (10ʹ) for receiving the lower part (12) surrounding wall (10) of the crankcase (2). 2. Entlüftungsvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß sich die Begrenzungswandungen (14, 15) des Oberteils (11) mittels Flanschen (22, 23) an der Wand (8) abstützen und dort vorzugsweise mit Schrauben (28) befestigt sind.2. Ventilation device according to claim 1, characterized in that the boundary walls (14, 15) of the upper part (11) are supported by flanges (22, 23) on the wall (8) and are preferably fastened there with screws (28). 3. Entlüftungsvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß zur Verbindung des Oberteils (11) mit dem Unterteil (12) Schrauben (30) dienen.3. Venting device according to claim 1, characterized in that serve to connect the upper part (11) with the lower part (12) screws (30). 4. Entlüftungsvorrichtung nach den Ansprüchen 1 bis 3, dadurch gekenn­zeichnet, daß das Oberteil (11) und das Unterteil (12) aus einer Leicht­metall-Legierung bestehen.4. Venting device according to claims 1 to 3, characterized in that the upper part (11) and the lower part (12) consist of a light metal alloy. 5. Entlüftungsvorrichtung nach den Ansprüchen 1 und 2, dadurch gekenn­zeichnet, daß das Oberteil (11) und das Unterteil (12) aus Kunststoff bestehen.5. Venting device according to claims 1 and 2, characterized in that the upper part (11) and the lower part (12) consist of plastic. 6. Entlüftungsvorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß zwischen dem Oberteil (11) und dem Unterteil (12) wenigstens ein mit einem Durchgangskanal (34) versehenes, aufrecht verlaufendes Aufnahmeteil (33) vorgesehen ist, an dem eine Stütze (36) mit einer Schulter (35) anliegt, wobei sich ein Zapfen (37) der Stütze (36) innerhalb des Durchgangskanals (34) erstreckt und auf dessen freier Seite mit einer Verdickung (39) abstützt.6. Ventilation device according to claim 6, characterized in that between the upper part (11) and the lower part (12) at least one with a through-channel (34) provided, upright receiving part (33) is provided, on which a support (36) a shoulder (35) abuts, a pin (37) of the support (36) extending within the through-channel (34) and supported on its free side with a thickening (39). 7. Entlüftungsvorrichtung nach Anspruch 7, dadurch gekennzeichnet, daß das Aufnahmeteil (33) am Unterteil (12) und die Stütze (36) am Oberteil (11) vorgesehen ist.7. Ventilation device according to claim 7, characterized in that the receiving part (33) on the lower part (12) and the support (36) on the upper part (11) is provided. 8. Entlüftungsvorrichtung nach den Ansprüchen 2 und 6, dadurch gekenn­zeichnet, daß die Flansche (22, 23) im Bereich der Schrauben (28) mit metallischen Stützbüchsen (43) versehen sind.8. Venting device according to claims 2 and 6, characterized in that the flanges (22, 23) in the region of the screws (28) are provided with metallic support bushes (43). 9. Entlüftungsvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Schikanen (9) durch sich wenigstens teilweise überdeckende Stege (46, 47) des Oberteils (11) und des Unterteils (12) gebildet werden.9. Ventilation device according to claim 1, characterized in that the baffles (9) by at least partially overlapping webs (46, 47) of the upper part (11) and the lower part (12) are formed. 10. Entlüftungsvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Unterteil (12) einen Eintritt (48) für das Entlüftungsmedium aufweist, der benachbart der Begrenzungswand (16) angeordnet ist, dergestalt, daß ein Abweiselement (49) des Eintritts (48) den unmittelbaren Zugang von in Drehrichtung (A) der Kurbelwelle beschleunigten Ölpartikeln verhindert wird.10. Ventilation device according to claim 1, characterized in that the lower part (12) has an inlet (48) for the ventilation medium, which is arranged adjacent to the boundary wall (16), such that a deflecting element (49) of the inlet (48) immediate access of oil particles accelerated in the direction of rotation (A) of the crankshaft is prevented. 11. Entlüftungsvorrichtung nach den Ansprüchen 1 und 10, dadurch gekenn­zeichnet, daß ein Austritt (50) für das von Öl befreite Entlüftungsmedium auf der dem Eintritt (48) gegenüberliegenden Seite am Oberteil (11) vorgesehen ist und vorzugsweise einen mit dem Saugrohr der Brennkraft­maschine verbindbaren Rohrstutzen (51) umfasst.11. Venting device according to claims 1 and 10, characterized in that an outlet (50) for the oil-free venting medium is provided on the side opposite the inlet (48) on the upper part (11) and preferably a connectable to the intake manifold of the internal combustion engine Includes pipe socket (51). 12. Entlüftungsvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Unterteil vorzugsweise an gegenüberliegenden Seiten mit Ölrücklauf­öffnungen (52, 53) versehen ist.12. Venting device according to claim 1, characterized in that the lower part is preferably provided on opposite sides with oil return openings (52, 53). 13. Entlüftungsvorrichtung nach einem oder mehreren der vorangehenden Ansprüche, dadurch gekennzeichnet, daß der Boden (18) des Unterteils (12) ein Gefälle (G) aufweist, dergestalt, daß aus dem Entlüftungsmedium abgeschiedenes Öl ins Kurbelgehäuse (2) zurückfließt.13. Venting device according to one or more of the preceding claims, characterized in that the bottom (18) of the lower part (12) has a gradient (G) such that oil separated from the venting medium flows back into the crankcase (2).
EP88101459A 1987-04-18 1988-02-02 De-aeration device with integrated oil separator Expired - Lifetime EP0287756B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3713210 1987-04-18
DE19873713210 DE3713210A1 (en) 1987-04-18 1987-04-18 VENTILATION DEVICE WITH INTEGRATED OIL SEPARATOR

Publications (3)

Publication Number Publication Date
EP0287756A2 true EP0287756A2 (en) 1988-10-26
EP0287756A3 EP0287756A3 (en) 1989-06-14
EP0287756B1 EP0287756B1 (en) 1992-07-29

Family

ID=6325915

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88101459A Expired - Lifetime EP0287756B1 (en) 1987-04-18 1988-02-02 De-aeration device with integrated oil separator

Country Status (4)

Country Link
US (1) US4844032A (en)
EP (1) EP0287756B1 (en)
JP (1) JPS63277811A (en)
DE (2) DE3713210A1 (en)

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GB2260365A (en) * 1991-10-03 1993-04-14 Jaguar Cars Oil Separation from i.c. engine crankcase gases
FR2754466A1 (en) * 1996-10-12 1998-04-17 Bosch Gmbh Robert COMPACT CONSTRUCTION OIL SEPARATOR DEVICE
EP0926319A1 (en) * 1997-12-23 1999-06-30 FIAT AUTO S.p.A. Device for oil vapours separation from the crankcase of an internal combustion engine and connection for blow-by of said vapours
FR2774129A1 (en) * 1998-01-23 1999-07-30 Renault IC engine crankcase gas recycling system
WO2007015106A1 (en) * 2005-08-04 2007-02-08 Ec Power A/S Separator
WO2007014552A2 (en) * 2005-07-30 2007-02-08 Hengst Gmbh & Co. Kg Ventilation module for an internal combustion engine
WO2007074384A2 (en) * 2005-12-28 2007-07-05 Toyota Jidosha Kabushiki Kaisha Pcv system for v-type engine
US7588020B2 (en) 2005-05-10 2009-09-15 Toyota Jidosha Kabushiki Kaisha Oil separator
EP2868879A1 (en) * 2013-10-30 2015-05-06 Yamaha Hatsudoki Kabushiki Kaisha Engine and straddle-type vehicle including the same
EP2927442A1 (en) * 2014-03-26 2015-10-07 Honda Motor Co., Ltd. Breather apparartus for internal combustion engine for vehicle
CN109854339A (en) * 2017-11-30 2019-06-07 宝沃汽车（中国）有限公司 Gs-oil separator, engine and vehicle
CN110748396A (en) * 2018-07-23 2020-02-04 本田技研工业株式会社 Ventilator structure of engine

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US5542402A (en) * 1995-04-05 1996-08-06 Ford Motor Company Positive crankcase ventilation system with a centrifugal oil separator
DE19703770C1 (en) 1997-02-01 1998-07-23 Daimler Benz Ag Venting device with integrated oil separator for a crankcase of an internal combustion engine
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JP3911950B2 (en) * 2000-02-25 2007-05-09 スズキ株式会社 Motorcycle
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JP4249504B2 (en) * 2003-02-17 2009-04-02 マツダ株式会社 Oil separator structure and oil separator unit
JP2004353505A (en) * 2003-05-28 2004-12-16 Petroliam Nasional Bhd Breather device for engine
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DE102006050827A1 (en) * 2006-10-27 2008-04-30 Audi Ag Internal-combustion engine for motor vehicle, has lubricant circuit operated according to dry sump principle and provided with oil collecting tank that is arranged within cylinder crankcase in installation space between cylinders
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JP5078745B2 (en) * 2008-05-21 2012-11-21 本田技研工業株式会社 Blow-by gas processing device for multi-cylinder V-type engine
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US8495993B2 (en) * 2011-06-03 2013-07-30 GM Global Technology Operations LLC Engine including crankcase ventilation system oil drain features
JP6447261B2 (en) * 2015-03-09 2019-01-09 アイシン精機株式会社 Oil mist separation mechanism of internal combustion engine
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Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2260365A (en) * 1991-10-03 1993-04-14 Jaguar Cars Oil Separation from i.c. engine crankcase gases
FR2754466A1 (en) * 1996-10-12 1998-04-17 Bosch Gmbh Robert COMPACT CONSTRUCTION OIL SEPARATOR DEVICE
EP0926319A1 (en) * 1997-12-23 1999-06-30 FIAT AUTO S.p.A. Device for oil vapours separation from the crankcase of an internal combustion engine and connection for blow-by of said vapours
FR2774129A1 (en) * 1998-01-23 1999-07-30 Renault IC engine crankcase gas recycling system
US7588020B2 (en) 2005-05-10 2009-09-15 Toyota Jidosha Kabushiki Kaisha Oil separator
DE102006021605B4 (en) * 2005-05-10 2010-06-17 Toyota Jidosha Kabushiki Kaisha, Toyota-shi oil separator
WO2007014552A2 (en) * 2005-07-30 2007-02-08 Hengst Gmbh & Co. Kg Ventilation module for an internal combustion engine
WO2007014552A3 (en) * 2005-07-30 2007-05-10 Hengst Gmbh & Co Kg Ventilation module for an internal combustion engine
WO2007015106A1 (en) * 2005-08-04 2007-02-08 Ec Power A/S Separator
WO2007074384A3 (en) * 2005-12-28 2008-01-03 Toyota Motor Co Ltd Pcv system for v-type engine
US8061336B2 (en) 2005-12-28 2011-11-22 Toyota Jidosha Kabushiki Kaisha PCV system for V-type engine
WO2007074384A2 (en) * 2005-12-28 2007-07-05 Toyota Jidosha Kabushiki Kaisha Pcv system for v-type engine
DE112006003475B4 (en) * 2005-12-28 2016-06-30 Toyota Jidosha Kabushiki Kaisha PCV system for a V-type internal combustion engine
US9546579B2 (en) 2013-10-30 2017-01-17 Yamaha Hatsudoki Kabushiki Kaisha Engine and straddle-type vehicle including the same
EP2868879A1 (en) * 2013-10-30 2015-05-06 Yamaha Hatsudoki Kabushiki Kaisha Engine and straddle-type vehicle including the same
EP2927442A1 (en) * 2014-03-26 2015-10-07 Honda Motor Co., Ltd. Breather apparartus for internal combustion engine for vehicle
CN109854339A (en) * 2017-11-30 2019-06-07 宝沃汽车（中国）有限公司 Gs-oil separator, engine and vehicle
CN109854339B (en) * 2017-11-30 2020-08-18 宝沃汽车（中国）有限公司 Oil-gas separator, engine and vehicle
CN110748396A (en) * 2018-07-23 2020-02-04 本田技研工业株式会社 Ventilator structure of engine
US10968796B2 (en) 2018-07-23 2021-04-06 Honda Motor Co., Ltd. Breather structure of engine
CN110748396B (en) * 2018-07-23 2021-09-07 本田技研工业株式会社 Ventilator structure of engine

Also Published As

Publication number Publication date
JPS63277811A (en) 1988-11-15
EP0287756B1 (en) 1992-07-29
EP0287756A3 (en) 1989-06-14
US4844032A (en) 1989-07-04
DE3713210A1 (en) 1988-11-03
DE3873137D1 (en) 1992-09-03
DE3713210C2 (en) 1991-08-01

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