EP1892390A2 - Combustion engine - Google Patents

Combustion engine Download PDF

Info

Publication number
EP1892390A2
EP1892390A2 EP07010762A EP07010762A EP1892390A2 EP 1892390 A2 EP1892390 A2 EP 1892390A2 EP 07010762 A EP07010762 A EP 07010762A EP 07010762 A EP07010762 A EP 07010762A EP 1892390 A2 EP1892390 A2 EP 1892390A2
Authority
EP
European Patent Office
Prior art keywords
oil
air
combustion engine
internal combustion
engine according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP07010762A
Other languages
German (de)
French (fr)
Other versions
EP1892390A3 (en
EP1892390B1 (en
Inventor
Albrecht Reustle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dr Ing HCF Porsche AG
Original Assignee
Dr Ing HCF Porsche AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dr Ing HCF Porsche AG filed Critical Dr Ing HCF Porsche AG
Publication of EP1892390A2 publication Critical patent/EP1892390A2/en
Publication of EP1892390A3 publication Critical patent/EP1892390A3/en
Application granted granted Critical
Publication of EP1892390B1 publication Critical patent/EP1892390B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/0004Oilsumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00Crankcase ventilating or breathing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/0004Oilsumps
    • F01M2011/0033Oilsumps with special means for guiding the return of oil into the sump
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/0004Oilsumps
    • F01M2011/005Oilsumps with special anti-turbulence means, e.g. anti-foaming means or intermediate plates

Definitions

  • the invention relates to an internal combustion engine with a crankcase, in which a crankshaft is rotatably mounted, according to the closer defined in the preamble of claim 1 Art.
  • a generic internal combustion engine is from the DE 44 24 248 C1 known.
  • the oil is pumped through extending within walls of the cylinder head pressure channels and adjoining longitudinal channels to within the crankcase arranged air-oil separation elements to separate the air from the oil flowing back into the oil pan.
  • the disadvantage here is the high casting complexity for creating the relatively long channels, the large footprint and the high drive power, which is needed for pumping the oil and for separating the air from the oil.
  • the DE 40 01 468 A1 describes an oil guide housing for an internal combustion engine in which trained as ribs oil planer are provided, with which the oil is planed from the connecting rod and returned via return ducts in the oil pan. By said construction, however, no separation of air from the oil pan recycled oil is possible.
  • the inventive one-piece design of the at least one air-oil separator with the ⁇ labstreif sexualen results in a very compact design these two parts, so that they can be integrated into the internal combustion engine without major problems. Due to the small distance of the air-oil separator from the ⁇ labstreif sexualen can also be dispensed with a pump, as is dominated by the prevailing in the air-oil separator high kinetic energy, the oil is stripped off and due to the density difference between air and oil an independent Oil separation takes place or is achieved. Another advantage of the solution according to the invention is that in the crankcase no additional channels or the like must be integrated, so that there is no additional casting technical effort.
  • At least one oil outlet opening of the air-oil separation device is located above the oil level of the oil pan in each driving state of the motor vehicle equipped with the internal combustion engine according to the invention, so that it is always ensured that the oil is returned freely and without resistance to the oil pan.
  • all oil outlet openings are arranged above the oil level adjusting in the oil sump.
  • the longitudinal axis of the air-oil separator around which the oil introduced rotates substantially parallel to the crankshaft, so additional space problems are prevented, since the air-oil separator in the direction of its longitudinal axis usually very is much larger than in a plane perpendicular to it. That is, the air-oil separator is installed horizontally, but the function of the same does not affect, since the oil is not due to gravity, but due to the high centrifugal force in the same passes.
  • each oil wiper device is associated with a connecting rod, and that each oil wiping device has two oil wiping openings arranged one behind the other in the direction of rotation of the crankshaft.
  • each ⁇ labstreifö réelle a narrowing Channel leads to the air-oil separator.
  • the flow rate of the oil is increased and it can be fed even faster to the air-oil separator in this way.
  • Fig. 1 shows an internal combustion engine 1 with a crankcase 2, attached to the crankcase 2 cylinder heads 3 and the cylinder heads 3 in a conventional manner final cylinder head cover 4.
  • the internal combustion engine 1 is designed in the present case in boxer design, but it could also in any other design be executed.
  • the crankcase 2 has in this case two crankcase halves 2a and 2b, between which a crankshaft 5 is mounted with a plurality of attached connecting rods 6 and performs in a conventional manner a rotational movement.
  • only one of the connecting rods 6 is shown, but the number of them coincides with the number of cylinders (not shown) of the internal combustion engine 1 and can thus vary almost as desired.
  • Below the crankcase 2 is an oil pan 7, in which the oil used for lubrication of the internal combustion engine 1 is added.
  • the internal combustion engine 1 thus has a wet sump lubrication.
  • the internal combustion engine 1 further comprises a plurality of oil scrapers 8, which are used for stripping oil from the rotating crankshaft 5 and the attached thereto and with the same rotating connecting rods 6 and thus to prevent free spraying or with the crankshaft 5 and the connecting rods 6 in the form of an oil roller with rotating oil.
  • each ⁇ labstreif issued 8 is assigned to a connecting rod 6, since a considerable amount of oil is carried by the connecting rods 6.
  • a connecting rod 6 in an internal combustion engine 1 with only one cylinder and consequently a connecting rod 6 so only one ⁇ labstreif sexual 8 would be provided.
  • Optionally could be dispensed with individual connecting rods 6 and the attachment of a ⁇ labstreif sexual 8.
  • the ⁇ labstreif sexualen 8 are integrally formed with a plurality of known as Swirlpot air-oil separation devices 9, in which the introduced from the crankshaft 5 and the connecting rods 6 stripped or planed oil is introduced and defoamed.
  • the oil scrapers 8 and the air-oil separators 9 are shown in more detail in FIG.
  • the ⁇ labstreif sexualen 8 additional cover elements 10 are assigned, which are preferably formed of sheet metal and prevent backflow of oil from the oil pan 7 in the crankcase 2.
  • the cover 10 also serve to attach the ⁇ labstreif recognizeden 8 to the crankcase 2. It can be provided between the cones 6 associated ⁇ labstreif sexualen 8, the crank webs of the crankshaft 5 associated ⁇ labstreif recognizeden to achieve even better stripping of oil.
  • each ⁇ labstreif issued 8 two ⁇ labstreifö réelleen 11 which are arranged in the rotational direction of the crankshaft 5 one behind the other and adapted to the designated with a line 6a envelope of the connecting rod 6 during its movement.
  • each ⁇ labstreifö réelleen 11 each leading a narrowing channel 12 to the assigned in the present embodiment each ⁇ labstreif responded 8 air-oil separator 9 and enters at a respective oil inlet opening 13 in the respective air-oil separator 9 a.
  • the air-oil separation devices 9 have in the present case a substantially cylindrical housing 14 and its longitudinal axis 15 extends substantially parallel to the crankshaft. 5
  • the air-oil separation device 9 has a substantially central, so arranged on the longitudinal axis 15 of the same 16 Luftabloomtechnisch through which the separated air from the oil can leave the housing 14.
  • the air discharge line 16 may extend more or less deeply into the housing 14 of the air-oil separator 9. The entering into the housing 14 of the air-oil separator 9 oil moves due to the centrifugal force on the inner wall of the housing 14 along a helical path in the direction of the air discharge line 16 opposite oil outlet 17, which is shown in Fig. 7 schematically.
  • the movement of the oil in the direction of the oil outlet opening 17 can be assisted by a design of the channels 12 inclined in the direction of the same. Due to the lower density of the air, this leaves the circulating oil flow inwards and can therefore escape through the air discharge line 16. The oil, however, can leave any air-oil separator 9 at the oil outlet 17.
  • the oil outlet opening 17, as can be seen in FIG. 7, is arranged so that it is located above an oil level 18 indicated in FIG. 7 in the oil pan 7 in each driving state of a motor vehicle equipped with the internal combustion engine 1.
  • a further line could also be led to a common oil outlet opening, which then likewise in each driving state of the equipped with the internal combustion engine 1 motor vehicle should be above the oil level 18 in the oil pan 7.
  • the oil level 18 shown in FIG. 7 results in the oil pan 17.
  • FIG. 7 further shows a suction opening 19, which is spaced from the bottom of the oil pan 7 by at least one spacer 20.
  • an oil pump not shown, sucks the lubricating oil from the oil pan 7 and forwards it to the lubrication points inside the internal combustion engine 1.
  • the suction opening 19 should be in each driving state of the motor vehicle or at each vehicle position below the thereby adjusting oil level 18.
  • Figures 5 and 6 show an alternative embodiment of the air-oil separation devices 9.
  • a plurality of ⁇ labstreifvoriquesen 8 is associated with a common air-oil separator 9, which also has a cylindrical housing 14 whose longitudinal axis is substantially parallel to the crankshaft 5 ,
  • two air-oil separation devices 9 are provided, each associated with three connecting rods 6. Due to the higher volume of oil to be expected, the volume of the air-oil separators 9 is greater than that of the embodiment illustrated in FIGS. 3 and 4, with respect to which the embodiment of FIGS. 5 and 6 enables simpler manufacture. In contrast, the embodiment of Figs. 3 and 4 is more effective due to the smaller volumes of the air-oil separators 9.

Landscapes

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

Abstract

Oil scrapers (8) scrape off oil from the crankshaft and/or from the connecting rods (6). An oil pan (7) is arranged below the crankcase to hold the oil scraped off by the oil scrapers. Air/oil separators (9) separate air from the returned oil. Each oil scraper is designed in one piece with its associated air/oil separator and is guided to the oil inlet opening of each air/oil separator. An oil outlet opening is assigned to each air/oil separator so that the oil outlet opening is located above an oil level in the oil pan in each driving state of a motor vehicle.

Description

Die Erfindung betrifft eine Brennkraftmaschine mit einem Kurbelgehäuse, in dem eine Kurbelwelle drehbar gelagert ist, nach der im Oberbegriff von Anspruch 1 näher definierten Art.The invention relates to an internal combustion engine with a crankcase, in which a crankshaft is rotatably mounted, according to the closer defined in the preamble of claim 1 Art.

Eine gattungsgemäße Brennkraftmaschine ist aus der DE 44 24 248 C1 bekannt. Dabei wird das Öl über innerhalb von Wandungen des Zylinderkopfes verlaufende Druckkanäle und sich daran anschließende Längskanäle zu innerhalb des Kurbelgehäuses angeordneten Luft-Öl-Abscheideelementen gepumpt, um die Luft aus dem in die Ölwanne zurückströmenden Öl abzuscheiden. Durch dieses Abscheiden von Luft aus dem Öl wird die Qualität des Öls aufrecht erhalten und eine sichere Funktion der Brennkraftmaschine gewährleistet. Nachteilig dabei ist jedoch der hohe gießtechnische Aufwand zur Erstellung der relativ langen Kanäle, der große Platzbedarf sowie die hohe Antriebsleistung, die zum Umpumpen des Öls und zur Abscheidung der Luft aus dem Öl benötigt wird.A generic internal combustion engine is from the DE 44 24 248 C1 known. The oil is pumped through extending within walls of the cylinder head pressure channels and adjoining longitudinal channels to within the crankcase arranged air-oil separation elements to separate the air from the oil flowing back into the oil pan. By this separation of air from the oil, the quality of the oil is maintained and ensures safe operation of the internal combustion engine. The disadvantage here, however, is the high casting complexity for creating the relatively long channels, the large footprint and the high drive power, which is needed for pumping the oil and for separating the air from the oil.

Die DE 40 01 468 A1 beschreibt ein Ölführungsgehäuse für eine Brennkraftmaschine, bei der als Rippen ausgebildete Ölhobel vorgesehen sind, mit denen das Öl von der Pleuelgeige abgehobelt und über Rücklaufkanäle in die Ölwanne zurückgeführt wird. Durch die genannte Konstruktion ist allerdings keine Abscheidung von Luft aus dem der Ölwanne zurückgeführten Öl möglich.The DE 40 01 468 A1 describes an oil guide housing for an internal combustion engine in which trained as ribs oil planer are provided, with which the oil is planed from the connecting rod and returned via return ducts in the oil pan. By said construction, however, no separation of air from the oil pan recycled oil is possible.

Es ist daher Aufgabe der vorliegenden Erfindung, eine Brennkraftmaschine zu schaffen, bei welcher das der Ölwanne zurückzuführende Öl möglichst schnell und mit einem möglichst geringen Luftgehalt zurückgeführt wird, wobei die hierzu erforderlichen Abstreif- und Luft-Öl-Abscheideeinrichtungen einen möglichst geringen Platzbedarf erfordern und eine kompakte Konstruktion aufweisen sollten.It is therefore an object of the present invention to provide an internal combustion engine in which the oil sump attributable oil is returned as quickly as possible and with the lowest possible air content, the necessary for this purpose stripping and air-oil separation devices require the smallest possible space and a should have compact design.

Erfindungsgemäß wird diese Aufgabe durch die in Anspruch 1 genannten Merkmale gelöst.According to the invention, this object is achieved by the features mentioned in claim 1.

Durch die erfindungsgemäße einteilige Ausführung der wenigstens einen Luft-Öl-Abscheideeinrichtung mit den Ölabstreifeinrichtungen ergibt sich eine sehr kompakte Bauform dieser beiden Teile, so dass diese ohne größere Probleme in die Brennkraftmaschine integriert werden können. Durch den geringen Abstand der Luft-Öl-Abscheideeinrichtung von den Ölabstreifeinrichtungen kann darüber hinaus auf eine Pumpe verzichtet werden, da durch die in der Luft-Öl-Abscheideeinrichtung herrschenden hohen kinetischen Energien das Öl abgestreift wird und aufgrund des Dichteunterschiedes zwischen Luft und Öl eine selbständige Ölabscheidung stattfindet bzw. erzielt wird. Ein weiterer Vorteil der erfindungsgemäßen Lösung besteht darin, dass in das Kurbelgehäuse keinerlei zusätzliche Kanäle oder dergleichen integriert werden müssen, so dass sich kein zusätzlicher gießtechnischer Aufwand ergibt.The inventive one-piece design of the at least one air-oil separator with the Ölabstreifeinrichtungen results in a very compact design these two parts, so that they can be integrated into the internal combustion engine without major problems. Due to the small distance of the air-oil separator from the Ölabstreifeinrichtungen can also be dispensed with a pump, as is dominated by the prevailing in the air-oil separator high kinetic energy, the oil is stripped off and due to the density difference between air and oil an independent Oil separation takes place or is achieved. Another advantage of the solution according to the invention is that in the crankcase no additional channels or the like must be integrated, so that there is no additional casting technical effort.

Erfindungsgemäß befindet sich wenigstens eine Ölauslassöffnung der Luft-Öl-Abscheideeinrichtung in jedem Fahrzustand des mit der erfindungsgemäßen Brennkraftmaschine ausgestattetem Kraftfahrzeugs oberhalb des Ölspiegels der Ölwanne, so dass stets gewährleistet ist, dass das Öl frei und ohne Widerstand in die Ölwanne zurückgeführt wird. Vorzugsweise sind alle Ölauslassöffnungen oberhalb des sich in der Ölwanne einstellenden Ölspiegels angeordnet.According to the invention, at least one oil outlet opening of the air-oil separation device is located above the oil level of the oil pan in each driving state of the motor vehicle equipped with the internal combustion engine according to the invention, so that it is always ensured that the oil is returned freely and without resistance to the oil pan. Preferably, all oil outlet openings are arranged above the oil level adjusting in the oil sump.

Wenn in einer vorteilhaften Weiterbildung der Erfindung die Längsachse der Luft-Öl-Abscheideeinrichtung, um welche das eingeleitete Öl rotiert, im wesentlichen parallel zu der Kurbelwelle verläuft, so werden zusätzliche Platzprobleme verhindert, da die Luft-Öl-Abscheideeinrichtung in Richtung ihrer Längsachse üblicherweise sehr viel größer ist als in einer Ebene senkrecht dazu. Das heißt, die Luft-Öl-Abscheideeinrichtung wird liegend eingebaut, was die Funktion derselben jedoch nicht beeinträchtigt, da das Öl nicht aufgrund der Schwerkraft, sondern aufgrund der hohen Zentrifugalkraft in dieselbe gelangt.If, in an advantageous embodiment of the invention, the longitudinal axis of the air-oil separator around which the oil introduced rotates substantially parallel to the crankshaft, so additional space problems are prevented, since the air-oil separator in the direction of its longitudinal axis usually very is much larger than in a plane perpendicular to it. That is, the air-oil separator is installed horizontally, but the function of the same does not affect, since the oil is not due to gravity, but due to the high centrifugal force in the same passes.

Eine besonders große Menge an Öl kann von der in dem Kurbelgehäuse rotierenden Kurbelwelle abgestreift werden, wenn in einer vorteilhaften Weiterbildung der Erfindung vorgesehen ist, dass jede Ölabstreifeinrichtung einem Pleuel zugeordnet ist, und dass jede Ölabstreifeinrichtung zwei in Rotationsrichtung der Kurbelwelle hintereinander angeordnete Ölabstreiföffnungen aufweist.A particularly large amount of oil can be scraped off by the crankshaft rotating in the crankcase, if in an advantageous development of the invention it is provided that each oil wiper device is associated with a connecting rod, and that each oil wiping device has two oil wiping openings arranged one behind the other in the direction of rotation of the crankshaft.

Des weiteren kann vorgesehen sein, dass von jeder Ölabstreiföffnung ein sich verengender Kanal zu der Luft-Öl-Abscheideeinrichtung führt. Durch einen solchen sich verengenden Kanal wird die Strömungsgeschwindigkeit des Öls erhöht und es kann auf diese Weise noch schneller der Luft-Öl-Abscheideeinrichtung zugeführt werden.Furthermore, it can be provided that of each Ölabstreiföffnung a narrowing Channel leads to the air-oil separator. By such a narrowing channel, the flow rate of the oil is increased and it can be fed even faster to the air-oil separator in this way.

Weitere vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den restlichen Unteransprüchen. Ausführungsbeispiele der Erfindung sind in der nachfolgenden Beschreibung und Zeichnung näher erläutert.Further advantageous embodiments and modifications of the invention will become apparent from the remaining dependent claims. Embodiments of the invention are explained in more detail in the following description and drawings.

Es zeigen:

Fig.1
eine sehr schematische Darstellung einer Brennkraftmaschine;
Fig. 2
eine räumliche Ansicht durch das Kurbelgehäuse der erfindungsgemäßen Brennkraftmaschine aus Fig. 1;
Fig.3
eine erste Ausführungsform der erfindungsgemäßen Ölabstreifeinrichtungen mit den Luft-Öl-Abscheideeinrichtungen;
Fig. 4
einen Schnitt nach der Linie IV-IV aus Fig. 3;
Fig. 5
eine zweite Ausführungsform der erfindungsgemäßen Ölabstreifeinrichtungen mit den Luft-Öl-Abscheideeinrichtungen;
Fig. 6
einen Schnitt nach der Linie VI-VI aus Fig. 5 und
Fig. 7
eine schematische Darstellung durch das Kurbelgehäuse der erfindungsgemäßen Brennkraftmaschine aus Fig. 1.
Show it:
Fig.1
a very schematic representation of an internal combustion engine;
Fig. 2
a spatial view through the crankcase of the internal combustion engine according to the invention of FIG. 1;
Figure 3
a first embodiment of the invention Ölabstreifeinrichtungen with the air-oil separation devices;
Fig. 4
a section along the line IV-IV of Fig. 3;
Fig. 5
a second embodiment of the invention Ölabstreifeinrichtungen with the air-oil separation devices;
Fig. 6
a section along the line VI-VI of Fig. 5 and
Fig. 7
a schematic representation through the crankcase of the internal combustion engine according to the invention of Fig. 1st

Fig. 1 zeigt eine Brennkraftmaschine 1 mit einem Kurbelgehäuse 2, an dem Kurbelgehäuse 2 angebrachten Zylinderköpfen 3 und die Zylinderköpfe 3 in an sich bekannter Weise abschließende Zylinderkopfdeckel 4. Die Brennkraftmaschine 1 ist im vorliegenden Fall in Boxer-Bauweise ausgeführt, sie könnte jedoch auch in jeder beliebigen anderen Bauform ausgeführt sein. Das Kurbelgehäuse 2 weist im vorliegenden Fall zwei Kurbelgehäusehälften 2a und 2b auf, zwischen denen eine Kurbelwelle 5 mit mehreren daran angebrachten Pleueln 6 gelagert ist und in an sich bekannter Weise eine Rotationsbewegung ausführt. Der Einfachheit halber ist lediglich eines der Pleuel 6 dargestellt, die Anzahl derselben stimmt jedoch mit der Anzahl der nicht dargestellten Zylinder der Brennkraftmaschine 1 überein und kann somit annähernd beliebig variieren. Unterhalb des Kurbelgehäuses 2 befindet sich eine Ölwanne 7, in der das zur Schmierung der Brennkraftmaschine 1 dienende Öl aufgenommen ist. Die Brennkraftmaschine 1 weist also eine Nasssumpfschmierung auf.Fig. 1 shows an internal combustion engine 1 with a crankcase 2, attached to the crankcase 2 cylinder heads 3 and the cylinder heads 3 in a conventional manner final cylinder head cover 4. The internal combustion engine 1 is designed in the present case in boxer design, but it could also in any other design be executed. The crankcase 2 has in this case two crankcase halves 2a and 2b, between which a crankshaft 5 is mounted with a plurality of attached connecting rods 6 and performs in a conventional manner a rotational movement. For the sake of simplicity, only one of the connecting rods 6 is shown, but the number of them coincides with the number of cylinders (not shown) of the internal combustion engine 1 and can thus vary almost as desired. Below the crankcase 2 is an oil pan 7, in which the oil used for lubrication of the internal combustion engine 1 is added. The internal combustion engine 1 thus has a wet sump lubrication.

Wie in der räumlichen Ansicht gemäß Fig. 2 zu erkennen ist, weist die Brennkraftmaschine 1 des weiteren mehrere Ölabstreifeinrichtungen 8 auf, die zum Abstreifen von Öl von der rotierenden Kurbelwelle 5 bzw. von den an derselben angebrachten und mit derselben rotierenden Pleueln 6 dienen und somit frei umherspritzendes bzw. mit der Kurbelwelle 5 und den Pleueln 6 in der Form einer Ölwalze mit rotierendes Öl verhindern. Hierbei ist jede Ölabstreifeinrichtung 8 einem Pleuel 6 zugeordnet, da von den Pleueln 6 eine beträchtliche Ölmenge mitgeführt wird. Bei einer Brennkraftmaschine 1 mit lediglich einem Zylinder und demzufolge einem Pleuel 6 wäre also nur eine Ölabstreifeinrichtung 8 vorgesehen. Gegebenenfalls könnte bei einzelnen Pleueln 6 auch auf die Anbringung einer Ölabstreifeinrichtung 8 verzichtet werden.As can be seen in the spatial view of FIG. 2, the internal combustion engine 1 further comprises a plurality of oil scrapers 8, which are used for stripping oil from the rotating crankshaft 5 and the attached thereto and with the same rotating connecting rods 6 and thus to prevent free spraying or with the crankshaft 5 and the connecting rods 6 in the form of an oil roller with rotating oil. Here, each Ölabstreifeinrichtung 8 is assigned to a connecting rod 6, since a considerable amount of oil is carried by the connecting rods 6. In an internal combustion engine 1 with only one cylinder and consequently a connecting rod 6 so only one Ölabstreifeinrichtung 8 would be provided. Optionally could be dispensed with individual connecting rods 6 and the attachment of a Ölabstreifeinrichtung 8.

Die Ölabstreifeinrichtungen 8 sind einteilig mit mehreren auch als Swirlpot bezeichneten Luft-Öl-Abscheideeinrichtungen 9 ausgebildet, in welche das von der Kurbelwelle 5 und den Pleueln 6 abgestreifte bzw. abgehobelte Öl eingeleitet und entschäumt wird. Die Ölabstreifeinrichtungen 8 und die Luft-Öl-Abscheideeinrichtungen 9 sind in Fig. 3 detaillierter dargestellt. Hieraus geht hervor, dass den Ölabstreifeinrichtungen 8 zusätzliche Abdeckelemente 10 zugeordnet sind, die vorzugsweise aus Blech ausgebildet sind und ein Zurückströmens von Öl aus der Ölwanne 7 in das Kurbelgehäuse 2 verhindern. Die Abdeckelemente 10 dienen außerdem zur Anbringung der Ölabstreifeinrichtungen 8 an dem Kurbelgehäuse 2. Dabei können zwischen den den Pleueln 6 zugeordneten Ölabstreifeinrichtungen 8 weitere, den Kurbelwangen der Kurbelwelle 5 zugeordnete Ölabstreifeinrichtungen vorgesehen sein, um ein noch besseres Abstreifen von Öl zu erreichen.The Ölabstreifeinrichtungen 8 are integrally formed with a plurality of known as Swirlpot air-oil separation devices 9, in which the introduced from the crankshaft 5 and the connecting rods 6 stripped or planed oil is introduced and defoamed. The oil scrapers 8 and the air-oil separators 9 are shown in more detail in FIG. It follows that the Ölabstreifeinrichtungen 8 additional cover elements 10 are assigned, which are preferably formed of sheet metal and prevent backflow of oil from the oil pan 7 in the crankcase 2. The cover 10 also serve to attach the Ölabstreifeinrichtungen 8 to the crankcase 2. It can be provided between the cones 6 associated Ölabstreifeinrichtungen 8, the crank webs of the crankshaft 5 associated Ölabstreifeinrichtungen to achieve even better stripping of oil.

Im vorliegenden Fall weist, wie in Fig. 4 erkennbar ist, jede Ölabstreifeinrichtung 8 zwei Ölabstreiföffnungen 11 auf, die in Rotationsrichtung der Kurbelwelle 5 hintereinander angeordnet und an die mit einer Linie 6a bezeichnete Hüllkurve des Pleuels 6 bei dessen Bewegung angepasst sind. Von den beiden Ölabstreiföffnungen 11 führt jeweils ein sich verengender Kanal 12 zu der im vorliegenden Ausführungsbeispiel jeder Ölabstreifeinrichtung 8 zugeordneten Luft-Öl-Abscheideeinrichtung 9 und tritt an einer jeweiligen Öleinlassöffnung 13 in die jeweilige Luft-Öl-Abscheideeinrichtung 9 ein. Die Luft-Öl-Abscheideeinrichtungen 9 weisen im vorliegenden Fall ein im wesentlichen zylindrisches Gehäuse 14 auf und ihre Längsachse 15 verläuft im wesentlichen parallel zu der Kurbelwelle 5.In the present case, as can be seen in Fig. 4, each Ölabstreifeinrichtung 8 two Ölabstreiföffnungen 11, which are arranged in the rotational direction of the crankshaft 5 one behind the other and adapted to the designated with a line 6a envelope of the connecting rod 6 during its movement. Of the two Ölabstreiföffnungen 11 each leading a narrowing channel 12 to the assigned in the present embodiment each Ölabstreifeinrichtung 8 air-oil separator 9 and enters at a respective oil inlet opening 13 in the respective air-oil separator 9 a. The air-oil separation devices 9 have in the present case a substantially cylindrical housing 14 and its longitudinal axis 15 extends substantially parallel to the crankshaft. 5

In Fig. 4 ist des weiteren zu erkennen, dass die Luft-Öl-Abscheideeinrichtung 9 eine im wesentlichen mittige, also auf der Längsachse 15 derselben angeordnete Luftabführleitung 16 aufweist, durch welche die aus dem Öl abgeschiedene Luft das Gehäuse 14 verlassen kann. Abhängig vom Durchmesser und der Länge des Gehäuses 14 sowie von dem zu erwartenden Volumenstrom des Öls kann sich die Luftabführleitung 16 mehr oder weniger tief in das Gehäuse 14 der Luft-Öl-Abscheideeinrichtung 9 erstrecken. Das in das Gehäuse 14 der Luft-Öl-Abscheideeinrichtung 9 eintretende Öl bewegt sich aufgrund der Zentrifugalkraft an der inneren Wandung des Gehäuses 14 entlang auf einer schraubenförmigen Bahn in Richtung einer der Luftabführleitung 16 gegenüberliegenden Ölauslassöffnung 17, die in Fig. 7 schematisch dargestellt ist. Die Bewegung des Öls in Richtung der Ölauslassöffnung 17 kann durch eine in Richtung zu derselben geneigte Ausgestaltung der Kanäle 12 unterstützt werden. Aufgrund der geringeren Dichte der Luft verlässt diese den zirkulierenden Ölstrom nach innen und kann aus diesem Grund durch die Luftabführleitung 16 austreten. Das Öl dagegen kann jede Luft-Öl-Abscheideeinrichtung 9 an der Ölauslassöffnung 17 verlassen. Dabei ist die Ölauslassöffnung 17, wie in Fig. 7 zu erkennen, so angeordnet, dass sie sich in jedem Fahrzustand eines mit der Brennkraftmaschine 1 ausgestatteten Kraftfahrzeugs oberhalb eines in Fig. 7 angedeuteten Ölspiegels 18 in der Ölwanne 7 befindet. Gegebenenfalls könnte von den Auslassöffnungen 17 der einzelnen Luft-Öl-Abscheideeinrichtungen 9 auch noch eine weitere Leitung zu einer gemeinsamen Ölauslassöffnung geführt sein, die sich dann ebenfalls in jedem Fahrzustand des mit der Brennkraftmaschine 1 ausgestatteten Kraftfahrzeugs oberhalb des Ölspiegels 18 in der Ölwanne 7 befinden sollte. Je nach Fahrzeuglage, d.h., horizontal, bergauf, bergab oder seitlich schräg, ergeben sich in der Ölwanne 17 die in Fig. 7 dargestellten Ölspiegel 18.In Fig. 4 it can be further seen that the air-oil separation device 9 has a substantially central, so arranged on the longitudinal axis 15 of the same 16 Luftabführleitung through which the separated air from the oil can leave the housing 14. Depending on the diameter and the length of the housing 14 and on the expected volume flow of the oil, the air discharge line 16 may extend more or less deeply into the housing 14 of the air-oil separator 9. The entering into the housing 14 of the air-oil separator 9 oil moves due to the centrifugal force on the inner wall of the housing 14 along a helical path in the direction of the air discharge line 16 opposite oil outlet 17, which is shown in Fig. 7 schematically. The movement of the oil in the direction of the oil outlet opening 17 can be assisted by a design of the channels 12 inclined in the direction of the same. Due to the lower density of the air, this leaves the circulating oil flow inwards and can therefore escape through the air discharge line 16. The oil, however, can leave any air-oil separator 9 at the oil outlet 17. In this case, the oil outlet opening 17, as can be seen in FIG. 7, is arranged so that it is located above an oil level 18 indicated in FIG. 7 in the oil pan 7 in each driving state of a motor vehicle equipped with the internal combustion engine 1. Optionally, from the outlet openings 17 of the individual air-oil separation devices 9, a further line could also be led to a common oil outlet opening, which then likewise in each driving state of the equipped with the internal combustion engine 1 motor vehicle should be above the oil level 18 in the oil pan 7. Depending on the vehicle position, ie, horizontal, uphill, downhill or sideways inclined, the oil level 18 shown in FIG. 7 results in the oil pan 17.

Fig. 7 zeigt des weiteren eine Saugöffnung 19, die durch mindestens einen Abstandhalter 20 vom Boden der Ölwanne 7 beabstandet ist. Über die Saugöffnung 19 saugt eine nicht dargestellte Ölpumpe das Schmieröl aus der Ölwanne 7 an und leitet es an die Schmierstellen innerhalb der Brennkraftmaschine 1 weiter. Die Saugöffnung 19 sollte sich in jedem Fahrzustand des Kraftfahrzeugs bzw. bei jeder Fahrzeuglage unterhalb des sich dabei einstellenden Ölspiegels 18 befinden.FIG. 7 further shows a suction opening 19, which is spaced from the bottom of the oil pan 7 by at least one spacer 20. Via the suction opening 19, an oil pump, not shown, sucks the lubricating oil from the oil pan 7 and forwards it to the lubrication points inside the internal combustion engine 1. The suction opening 19 should be in each driving state of the motor vehicle or at each vehicle position below the thereby adjusting oil level 18.

Die Figuren 5 und 6 zeigen eine alternative Ausführungsform der Luft-Öl-Abscheideeinrichtungen 9. Hierbei ist mehreren Ölabstreifvorrichtungen 8 eine gemeinsame Luft-Öl-Abscheideeinrichtung 9 zugeordnet, die ebenfalls ein zylindrisches Gehäuse 14 aufweist, dessen Längsachse im wesentlichen parallel zu der Kurbelwelle 5 verläuft. Im vorliegenden Fall sind zwei Luft-Öl-Abscheideeinrichtungen 9 vorgesehen, die jeweils drei Pleueln 6 zugeordnet sind. Aufgrund des höheren zu erwartenden Ölvolumens ist das Volumen der Luft-Öl-Abscheideeinrichtungen 9 größer als dasjenige der in Fig. 3 und Fig. 4 dargestellten Ausführungsform, gegenüber der die Ausführungsform von Fig. 5 und Fig. 6 eine einfachere Herstellung ermöglicht. Demgegenüber ist die Ausführungsform von Fig. 3 und Fig. 4 aufgrund der geringeren Volumina der Luft-Öl-Abscheideeinrichtungen 9 wirkungsvoller.Figures 5 and 6 show an alternative embodiment of the air-oil separation devices 9. Here, a plurality of Ölabstreifvorrichtungen 8 is associated with a common air-oil separator 9, which also has a cylindrical housing 14 whose longitudinal axis is substantially parallel to the crankshaft 5 , In the present case, two air-oil separation devices 9 are provided, each associated with three connecting rods 6. Due to the higher volume of oil to be expected, the volume of the air-oil separators 9 is greater than that of the embodiment illustrated in FIGS. 3 and 4, with respect to which the embodiment of FIGS. 5 and 6 enables simpler manufacture. In contrast, the embodiment of Figs. 3 and 4 is more effective due to the smaller volumes of the air-oil separators 9.

Claims (10)

Brennkraftmaschine mit einem Kurbelgehäuse, in dem eine Kurbelwelle mit wenigstens einem daran angebrachten Pleuel drehbar gelagert ist, mit Einrichtungen zum Abstreifen von Öl von der rotierenden Kurbelwelle, mit einer unterhalb des Kurbelgehäuses angeordneten Ölwanne zur Aufnahme des von den Ölabstreifeinrichtungen abgestreiften Öls, und mit wenigstens einer Luft-Öl-Abscheideeinrichtung zum Abscheiden von Luft aus dem rückgeführten Öl,
dadurch gekennzeichnet, dass
die Ölabstreifeinrichtungen (8) einteilig mit der wenigstens einen Luft-Öl-Abscheideeinrichtung (9) ausgebildet und zu einer Öleinlassöffnung (13) der Luft-Öl-Abscheideeinrichtung (9) geführt sind, wobei wenigstens eine Ölauslassöffnung (17) der wenigstens einen Luft-Öl-Abscheideeinrichtung (9) so angeordnet ist, dass sie sich in jedem Fahrzustand eines mit der Brennkraftmaschine (1) ausgestatteten Kraftfahrzeugs oberhalb eines Ölspiegels (18) in der Ölwanne (7) befindet.
Internal combustion engine with a crankcase, in which a crankshaft is rotatably mounted with at least one connecting rod attached thereto, with means for stripping oil from the rotating crankshaft, with an arranged below the crankcase oil pan for receiving the scraped off by the Ölabstreifeinrichtungen oil, and at least one Air-oil separator for separating air from the returned oil,
characterized in that
the oil wiping devices (8) are integrally formed with the at least one air-oil separator (9) and led to an oil inlet opening (13) of the air-oil separator (9), at least one oil outlet opening (17) of the at least one air inlet Oil separation device (9) is arranged so that it is in any driving condition of a vehicle equipped with the internal combustion engine (1) motor vehicle above an oil level (18) in the oil pan (7).
Brennkraftmaschine nach Anspruch 1,
dadurch gekennzeichnet, dass
die Längsachse (15) der Luft-Öl-Abscheideeinrichtung (9), um welche das eingeleitete Öl rotiert, im wesentlichen parallel zu der Kurbelwelle (5) verläuft.
Internal combustion engine according to claim 1,
characterized in that
the longitudinal axis (15) of the air-oil separator (9) about which the introduced oil rotates is substantially parallel to the crankshaft (5).
Brennkraftmaschine nach Anspruch 1 oder 2,
dadurch gekennzeichnet, dass
jede Ölabstreifeinrichtung (8) einem Pleuel (6) zugeordnet ist, und dass jede Ölabstreifeinrichtung (8) zwei in Rotationsrichtung der Kurbelwelle (5) hintereinander angeordnete Ölabstreiföffnungen (11) aufweist.
Internal combustion engine according to claim 1 or 2,
characterized in that
each Ölabstreifeinrichtung (8) is associated with a connecting rod (6), and that each Ölabstreifeinrichtung (8) has two in the direction of rotation of the crankshaft (5) successively arranged Ölabstreiföffnungen (11).
Brennkraftmaschine nach Anspruch 3,
dadurch gekennzeichnet, dass
von jeder Ölabstreiföffnung (11) ein sich verengender Kanal (12) zu der Luft-Öl-Abscheideeinrichtung (9) führt.
Internal combustion engine according to claim 3,
characterized in that
from each oil wiping hole (11), a narrowing channel (12) leads to the air-oil separator (9).
Brennkraftmaschine nach Anspruch 4,
dadurch gekennzeichnet, dass
die Kanäle (12) tangential in die Luft-Öl-Abscheideeinrichtung (9) münden.
Internal combustion engine according to claim 4,
characterized in that
the channels (12) open tangentially into the air-oil separator (9).
Brennkraftmaschine nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet, dass
jeder Ölabstreifeinrichtung (8) eine Luft-Öl-Abscheideeinrichtung (9) zugeordnet ist.
Internal combustion engine according to one of claims 1 to 5,
characterized in that
Each Ölabstreifeinrichtung (8) is associated with an air-oil separator (9).
Brennkraftmaschine nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet, dass
mehreren Ölabstreifeinrichtungen (8) eine gemeinsame Luft-Öl-Abscheideeinrichtung (9) zugeordnet ist.
Internal combustion engine according to one of claims 1 to 5,
characterized in that
a plurality of Ölabstreifeinrichtungen (8) is associated with a common air-oil separator (9).
Brennkraftmaschine nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet, dass
die wenigstens eine Luft-Öl-Abscheideeinrichtung (9) ein im wesentlichen zylindrisches Gehäuse (14) aufweist, an dessen der Öleinlassöffnung (13) zugewandtem Ende eine mittige Luftabführleitung (16) und an dessen anderem Ende die Ölauslassöffnung (17) seitlich angeordnet ist.
Internal combustion engine according to one of claims 1 to 7,
characterized in that
the at least one air-oil separator (9) has a substantially cylindrical housing (14), at the end of which the oil inlet (13) end facing a central Luftabführleitung (16) and at the other end of the Ölauslassöffnung (17) is arranged laterally.
Brennkraftmaschine nach einem der Ansprüche 1 bis 8,
dadurch gekennzeichnet, dass
den Kurbelwangen der Kurbelwelle (5) jeweilige zusätzliche Ölabstreifeinrichtungen zugeordnet sind.
Internal combustion engine according to one of claims 1 to 8,
characterized in that
the crank webs of the crankshaft (5) are assigned respective additional Ölabstreifeinrichtungen.
Brennkraftmaschine nach einem der Ansprüche 1 bis 9,
dadurch gekennzeichnet, dass
zwischen der Kurbelwelle (5) und der Ölwanne (7) Abdeckelemente (10) zum Verhindern des Zurückströmens von Öl aus der Ölwanne (7) in das Kurbelgehäuse (2) angeordnet sind.
Internal combustion engine according to one of claims 1 to 9,
characterized in that
between the crankshaft (5) and the oil pan (7) covering elements (10) for preventing the backflow of oil from the oil pan (7) in the crankcase (2) are arranged.
EP07010762A 2006-07-31 2007-05-31 Combustion engine Expired - Fee Related EP1892390B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006035888A DE102006035888A1 (en) 2006-07-31 2006-07-31 Internal combustion engine

Publications (3)

Publication Number Publication Date
EP1892390A2 true EP1892390A2 (en) 2008-02-27
EP1892390A3 EP1892390A3 (en) 2010-09-15
EP1892390B1 EP1892390B1 (en) 2012-04-25

Family

ID=38830393

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07010762A Expired - Fee Related EP1892390B1 (en) 2006-07-31 2007-05-31 Combustion engine

Country Status (5)

Country Link
US (1) US7472675B2 (en)
EP (1) EP1892390B1 (en)
JP (1) JP2008032009A (en)
CN (1) CN101117904B (en)
DE (1) DE102006035888A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016119768A1 (en) * 2015-01-30 2016-08-04 Volkswagen Ag Internal combustion engine comprising an oil return line having an oil duct
EP3106635A1 (en) * 2015-06-20 2016-12-21 MAN Truck & Bus AG Bulkhead wall structure with integrated liquid transport function

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8281758B2 (en) * 2005-08-03 2012-10-09 Etg Limited Engine lubrication method
GB0816562D0 (en) * 2008-09-11 2008-10-15 Rolls Royce Plc Lubricant scavenge arrangement
DE102008060412B4 (en) 2008-11-28 2023-03-30 Dr. Ing. H.C. F. Porsche Aktiengesellschaft combustion engine
DE102008060411B4 (en) 2008-11-28 2023-03-23 Dr. Ing. H.C. F. Porsche Aktiengesellschaft combustion engine
DE102008060409B4 (en) * 2008-11-28 2023-03-30 Dr. Ing. H.C. F. Porsche Aktiengesellschaft combustion engine
CA2754039C (en) * 2009-09-30 2017-10-31 Hitachi Koki Co., Ltd. Four-cycle engine, bush cutter and engine-driven tool having same
DE102011120782A1 (en) 2011-12-09 2013-06-13 Volkswagen Aktiengesellschaft Internal combustion engine and method for operating an internal combustion engine
DE102015118724A1 (en) * 2015-11-02 2017-05-04 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Oil planer for arrangement in an internal combustion engine and internal combustion engine
JP2023049420A (en) 2021-09-29 2023-04-10 本田技研工業株式会社 internal combustion engine

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0332110U (en) * 1989-08-08 1991-03-28
DE4012415A1 (en) * 1990-04-19 1991-10-24 Audi Ag Crankcase for IC engine in vehicle - with oil separator channel connected to ventilation channel
JPH057917U (en) * 1991-07-11 1993-02-02 三菱自動車工業株式会社 Lubricant return path structure with baffle plate
DE4204522C1 (en) * 1992-02-15 1993-04-15 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De IC engine silencer with lower cover shell - has oil flow shell aperture opening into noise damping chamber
JPH05296018A (en) * 1992-04-17 1993-11-09 Mitsubishi Oil Co Ltd Oil pan with built-in bubble removing device
DE10029844A1 (en) * 2000-06-16 2002-01-03 Porsche Ag Motor cycle engine has curved wall sections in crankshaft area of crank housing defining oil duct which runs tangential relative to rotational axis of crankshaft for rapid return of oil to oil tank
JP2005171777A (en) * 2003-12-08 2005-06-30 Nissan Motor Co Ltd Oil recovering structure of internal combustion engine

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS564613U (en) * 1979-06-23 1981-01-16
JPH02118116U (en) * 1989-03-09 1990-09-21
DE4001468A1 (en) * 1990-01-19 1991-07-25 Porsche Ag OIL GUIDE HOUSING FOR AN INTERNAL COMBUSTION ENGINE
DE4424248C1 (en) * 1994-07-09 1995-12-07 Porsche Ag Internal combustion engine with two cylinder banks inclined against the vertical
IT1316226B1 (en) * 1999-10-06 2003-04-03 Daimler Chrysler Ag OIL CONVEYING DEVICE IN THE INTERNAL COMBUSTION ENGINE OIL CUP.
JP2004218453A (en) * 2003-01-09 2004-08-05 Suzuki Motor Corp Breather device for engine
JP2005120973A (en) * 2003-10-20 2005-05-12 Kawasaki Heavy Ind Ltd Vertical shaft engine
ITTO20050666A1 (en) * 2004-09-29 2006-03-30 Honda Motor Co Ltd MOTORCYCLE
JP2006207389A (en) * 2005-01-25 2006-08-10 Mitsubishi Fuso Truck & Bus Corp Breather device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0332110U (en) * 1989-08-08 1991-03-28
DE4012415A1 (en) * 1990-04-19 1991-10-24 Audi Ag Crankcase for IC engine in vehicle - with oil separator channel connected to ventilation channel
JPH057917U (en) * 1991-07-11 1993-02-02 三菱自動車工業株式会社 Lubricant return path structure with baffle plate
DE4204522C1 (en) * 1992-02-15 1993-04-15 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De IC engine silencer with lower cover shell - has oil flow shell aperture opening into noise damping chamber
JPH05296018A (en) * 1992-04-17 1993-11-09 Mitsubishi Oil Co Ltd Oil pan with built-in bubble removing device
DE10029844A1 (en) * 2000-06-16 2002-01-03 Porsche Ag Motor cycle engine has curved wall sections in crankshaft area of crank housing defining oil duct which runs tangential relative to rotational axis of crankshaft for rapid return of oil to oil tank
JP2005171777A (en) * 2003-12-08 2005-06-30 Nissan Motor Co Ltd Oil recovering structure of internal combustion engine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016119768A1 (en) * 2015-01-30 2016-08-04 Volkswagen Ag Internal combustion engine comprising an oil return line having an oil duct
CN107429583A (en) * 2015-01-30 2017-12-01 大众汽车有限公司 Internal combustion engine with the oil return apparatus for being equipped with oil duct
CN107429583B (en) * 2015-01-30 2019-12-03 大众汽车有限公司 Internal combustion engine with the oil return apparatus for being equipped with oil duct
EP3106635A1 (en) * 2015-06-20 2016-12-21 MAN Truck & Bus AG Bulkhead wall structure with integrated liquid transport function
US10502105B2 (en) 2015-06-20 2019-12-10 Man Truck & Bus Ag Dividing wall structure with integrated liquid delivery function

Also Published As

Publication number Publication date
EP1892390A3 (en) 2010-09-15
DE102006035888A1 (en) 2008-02-07
EP1892390B1 (en) 2012-04-25
US20080022964A1 (en) 2008-01-31
JP2008032009A (en) 2008-02-14
CN101117904A (en) 2008-02-06
US7472675B2 (en) 2009-01-06
CN101117904B (en) 2011-05-25

Similar Documents

Publication Publication Date Title
EP1892390B1 (en) Combustion engine
DE102008060412B4 (en) combustion engine
DE102009010282B4 (en) Dry sump oil tank assembly for a vehicle
DE102005051263B4 (en) Oil tank arrangement with dry sump
EP1751405B1 (en) Oil pan arrangement
DE102006038700B4 (en) Device for separating liquids from gases
DE102005040971B4 (en) Scroll compressor with function to prevent loss of lubricating oil
EP2855025A1 (en) Separator and method for separating liquid droplets from an aerosol
DE102006024816A1 (en) Device for venting a crankcase
EP3298241A1 (en) Oil-lubricated slide vane rotary vacuum pump with oil separating and reconditioning device
DE102011113594A1 (en) Baffle with drain
EP2995781A1 (en) Tank device of an aircraft engine with a device for feeding in oil
DE69026045T2 (en) Liquid degassing pump
WO2001071168A1 (en) Oil collecting device and oil pump for an internal combustion engine
DE102014109581B4 (en) VERTICALLY ARRANGED OIL PAN BUMPER AND AUTOMOTIVE ENGINE
EP0856644B1 (en) Device for crancase ventilation for an internal combustion engine
DE102006022573B4 (en) Vehicle gearbox with an additional lubrication system
DE102016225923A1 (en) Pump unit for a hydraulic system and duct element for a pump set
DE102011108170A1 (en) Motor vehicle has lubricant reservoir from which lubricant is supplied to contact pad provided between two mutually movable components of planetary gear by accelerating rotatable drive structure
DE102011008537A1 (en) Engine block for internal combustion engine of motor vehicle, has oil return channel for returning separated oil from cylinder head to oil pan, where oil return channel partially proportionately runs against direction of gravity
DE102008060411B4 (en) combustion engine
DE102004045441B4 (en) Device for supplying a drive with liquid lubricant
DE102017114889A1 (en) Ventilation system for a transmission
DE19948163A1 (en) Device for venting a crankcase/cylinder head in an internal combustion engine includes a feeder device for a mixture of gas, steam and mist coming from the crankcase and/or cylinder head in an internal combustion engine.
AT525580B1 (en) INTERNAL ENGINE WITH AT LEAST ONE CYLINDER HEAD AND AT LEAST ONE CRANKCASE

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK YU

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: DR. ING. H.C. F. PORSCHE AKTIENGESELLSCHAFT

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: DR. ING. H.C. F. PORSCHE AKTIENGESELLSCHAFT

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: DR. ING. H.C. F. PORSCHE AG

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK RS

17P Request for examination filed

Effective date: 20110315

AKX Designation fees paid

Designated state(s): DE FR GB IT

17Q First examination report despatched

Effective date: 20110812

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502007009752

Country of ref document: DE

Effective date: 20120628

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120425

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20130131

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20130128

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120625

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502007009752

Country of ref document: DE

Effective date: 20130128

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20190521

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20200430

Year of fee payment: 14

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20200531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200531

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502007009752

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211201