EP1878884B1 - Oil tray for a combustion engine - Google Patents

Oil tray for a combustion engine Download PDF

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Publication number
EP1878884B1
EP1878884B1 EP20070010765 EP07010765A EP1878884B1 EP 1878884 B1 EP1878884 B1 EP 1878884B1 EP 20070010765 EP20070010765 EP 20070010765 EP 07010765 A EP07010765 A EP 07010765A EP 1878884 B1 EP1878884 B1 EP 1878884B1
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EP
European Patent Office
Prior art keywords
oil
housing
housing section
oil tray
deep
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.)
Active
Application number
EP20070010765
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German (de)
French (fr)
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EP1878884A2 (en
EP1878884A3 (en
Inventor
Norman Wöckel
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Dr Ing HCF Porsche AG
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Dr Ing HCF Porsche AG
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Publication date
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Publication of EP1878884A2 publication Critical patent/EP1878884A2/en
Publication of EP1878884A3 publication Critical patent/EP1878884A3/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/0004—Oilsumps
    • 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
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/0004—Oilsumps
    • F01M2011/0025—Oilsumps with heat exchangers
    • 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
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/0004—Oilsumps
    • F01M2011/0029—Oilsumps with oil filters
    • 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
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/0004—Oilsumps
    • F01M2011/0033—Oilsumps with special means for guiding the return of oil into the sump
    • 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
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/0004—Oilsumps
    • F01M2011/0037—Oilsumps with different oil compartments
    • 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
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/0004—Oilsumps
    • F01M2011/007—Oil pickup tube to oil pump, e.g. strainer

Definitions

  • the invention relates to an oil-collecting device for an internal combustion engine with a arranged below a crankcase oil collection housing according to the closer defined in the preamble of claim 1 Art.
  • a generic oil catcher is in the DE 101 05 435 A1 described. Similar devices or equipped with such devices internal combustion engines also show the DE 101 59 090 C2 and the DE 101 59 104 B4 , The two also referred to as suction, leading to the at least two housing sections with different installation depths ⁇ labsaug Oberen the oil pump are required to ensure the oil supply to the engine even in extreme driving situations.
  • the known oil catch devices meet this purpose, but they have a relatively complicated construction, which also requires a complex assembly. Another disadvantage is that for an oil change always both housing sections must be emptied separately, which also represents a major effort.
  • an oil pan is known in which two oil trap sections are provided, which have different installation depths. Between the two oil trapping sections a partition wall is provided, with which an oil suction line is connected.
  • the inventive one-piece design of the oil suction line with the insert results in a considerably simplified construction of the oil catcher according to the invention, in which also a simple installation of the insert within the Oil catcher housing is guaranteed. Furthermore, the integration of the oil suction line according to the invention into the insert part leads to a component reduction and thus to a reduction of costs.
  • the oil collection housing in the at least two housings sections with different space depth, namely a deep housing portion and a flat housing section, ensuring that even in extreme driving situations, especially in steep mountain passages, the oil pump always suck a sufficient amount of oil from the oil collection housing and can forward to the points to be lubricated.
  • the partition has at least one opening which allows a back flow of oil from the flat housing portion in the deep housing portion.
  • the backflow of the oil into the deep housing section is assisted, if, in a further advantageous embodiment, the flat housing section is inclined in the direction of the deep housing section.
  • Fig. 1 shows in a highly schematic representation of an internal combustion engine 1 with a crankcase 2, which has a crankcase upper part 3 and also referred to as bedplate crankcase lower part 4.
  • a crankcase upper part 3 On the executed in the present case in V-type crankcase 2, two cylinder heads 5a and 5b are mounted, which can be carried out in a conventional manner.
  • a crankshaft 6 is rotatably mounted in a manner also known per se.
  • an oil-collecting housing 7, which is connected to the crankcase lower part 4 and is formed in a manner also known per se for receiving the lubricating oil for the internal combustion engine 1 and is closed at the bottom by an oil pan 8.
  • the oil pan 8 may be formed, for example in the form of a lid made of sheet metal and is required because the oil trap housing 7 is formed in the present case as a die-cast part and therefore has mutual openings.
  • the internal combustion engine 1 could also be designed in a row, boxer or other construction.
  • the oil trap housing 7 has two housing sections, namely a in Fig. 2 approximately completely recognizable, flat housing portion 12 and a subsequent to the flat housing portion 12, deep housing portion 13 which receives the largest amount of lubricating oil for the internal combustion engine 1 and thus forms the actual oil sump and on the outside of the oil cooler 10 and the oil filter 11th are located.
  • the flat housing section 12 has a central recess 14 formed out of the bottom thereof, which is located between two elevations 15 and whose function will be explained in more detail below.
  • an insert 16 and an oil pump 17 are disposed within the oil trap housing 7, which together with the oil trap housing 7 form an oil-collecting device 18 for the internal combustion engine 1.
  • the in the present case of plastic and not shown in the manner screwed to the oil trap housing 7 insert 16 has a partition 19, which has a vertical portion 19a and a horizontal portion 19b and the two housing sections 12 and 13 separated from each other.
  • the partition wall 19 prevents the oil located in the deep housing section 13 from flowing completely into the flat housing section 12.
  • two oil suction pipes 20 and 21, with the first oil suction pipe 20 provided therefor lead out the deep housing portion 13, in which there is the significant larger amount of oil to suck oil.
  • the first ⁇ labsaugtechnisch 20 extends approximately to the bottom of the deep housing portion 13.
  • the second, leading to the flat housing portion 12 ⁇ labsaug réelle 21 is integrally formed with the insert 16 and has a flexible portion 21 a, which is movable with the oil pump 17 is connected so that any component and assembly tolerances can be compensated.
  • the recess 14 serves to receive the ⁇ labsaug effet 21 and the contour is replicated, so that the smallest possible space between these two components remains.
  • the oil pump 17 constantly sucks oil via both oil suction lines 20 and 21 and directs it to the cylinder heads 5a and 5b, and in the case where there is no oil in the flat housing section 12, substantially only air is drawn via the oil suction line 21 ,
  • the leading to the flat housing section 12 ⁇ labsaug effet 20 approximately to the surrounding the oil trap housing 7 wall 9, so when driving uphill in the flat housing portion 12, ie in the rear region of the oil collection housing 7, accumulating lubricating oil the oil pump 17 can be sucked in via the oil suction line 21 and pumped into the deep housing section 13, ie into the front region of the oil catch housing 7.
  • the wall 9 forms on its upper side a separating surface 22, to which it is connected to the crankcase lower part 4 of the crankcase 2.
  • the insert 16 has two arranged on both sides of the oil trap housing 7 oil return channels 23 and 24, with which the back flowing from the cylinder heads 5a and 5b via the crankcase 2 oil in a conventional manner in the two housing sections 12 and 13 of the oil collection housing 7 is passed ,
  • the two oil return channels 23 and 24 are connected to each other via the partition wall 19 and two in the front and rear of the insert 16 webs 25 and 26, respectively, to give the insert 16, the necessary rigidity.
  • the remote in the rear, so the oil pump 17 region of the insert 16 extending web 26 also serves to hold the ⁇ labsaugtechnisch 21 for the flat housing portion 12th
  • the oil flowing back from the cylinder heads 5a and 5b also enters the flat housing section 12, by adapting the shape of the insert 16 to the shape of the oil catch housing 7 in the region of the flat housing section 12, in particular by the design of Recess 14 and the two elevations 15, the volume of the flat housing portion 12 minimized to allow only a minimum amount of oil into the flat housing portion 12 to pass.
  • the flat housing portion 12 inclined in the direction of the deep housing portion 13.
  • openings 27 and 28 which, as in Fig. 6 can be seen, are formed by respective recesses in a two housing sections 12 and 13 against each other sealing sealing element 29, to whose inclusion the partition wall 19 has a corresponding groove 30.
  • the openings 27 and 28 have a defined, relatively small size, for example, 10 to 20 mm 2 , so that the oil can not flow through the same from the deep housing portion 13 in the flat housing portion 12.
  • the cross section and the number of openings 27 and 28 depend in particular on the size of the two housing sections 12 and 13.
  • the partition 19 thus separates in the dynamic state, so for example when driving uphill, the two housing sections 12 and 13 from each other, whereas in the static state, ie at rest of the internal combustion engine 1, due to the two openings 27 and 28 no separation of the two housing sections 12 and 13 more is given.

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

Description

Die Erfindung betrifft eine Ölauffangvorrichtung für eine Brennkraftmaschine mit einem unterhalb eines Kurbelgehäuses angeordneten Ölauffanggehäuse nach der im Oberbegriff von Anspruch 1 näher definierten Art.The invention relates to an oil-collecting device for an internal combustion engine with a arranged below a crankcase oil collection housing according to the closer defined in the preamble of claim 1 Art.

Eine gattungsgemäße Ölauffangvorrichtung ist in der DE 101 05 435 A1 beschrieben. Ähnliche Vorrichtungen bzw. mit solchen Vorrichtungen ausgestattete Brennkraftmaschinen zeigen auch die DE 101 59 090 C2 und die DE 101 59 104 B4 . Die beiden auch als Saugstufen bezeichneten, zu den wenigstens zwei Gehäuseabschnitten mit unterschiedlichen Bauraumtiefen führenden Ölabsaugleitungen der Ölpumpe sind erforderlich, um auch in extremen Fahrsituationen die Ölversorgung der Brennkraftmaschine zu gewährleisten. Zwar erfüllen die bekannten Ölauffangvorrichtungen diesen Zweck, sie weisen jedoch eine verhältnismäßig komplizierte Konstruktion auf, die darüber hinaus eine aufwändige Montage erfordert. Ein weiterer Nachteil besteht darin, dass für einen Ölwechsel stets beide Gehäuseabschnitte separat entleert werden müssen, was ebenfalls einen größeren Aufwand darstellt.A generic oil catcher is in the DE 101 05 435 A1 described. Similar devices or equipped with such devices internal combustion engines also show the DE 101 59 090 C2 and the DE 101 59 104 B4 , The two also referred to as suction, leading to the at least two housing sections with different installation depths Ölabsaugleitungen the oil pump are required to ensure the oil supply to the engine even in extreme driving situations. Although the known oil catch devices meet this purpose, but they have a relatively complicated construction, which also requires a complex assembly. Another disadvantage is that for an oil change always both housing sections must be emptied separately, which also represents a major effort.

Aus der DE 101 19 924 A1 ist eine Ölwanne bekannt, bei der zwei Ölauffangabschnitte vorgesehen sind, welche unterschiedliche Bauraumtiefen aufweisen. Zwischen den beiden Ölauffangabschnitten ist eine Trennwand vorgesehen, mit der eine Ölabsaugleitung verbunden ist.From the DE 101 19 924 A1 an oil pan is known in which two oil trap sections are provided, which have different installation depths. Between the two oil trapping sections a partition wall is provided, with which an oil suction line is connected.

Es ist daher Aufgabe der vorliegenden Erfindung, eine Ölauffangvorrichtung für eine Brennkraftmaschine zu schaffen, die eine einfache Konstruktion aufweist und eine einfache Montage ermöglicht.It is therefore an object of the present invention to provide an oil-collecting device for an internal combustion engine, which has a simple construction and allows easy installation.

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 einstückige Ausführung der Ölabsaugleitung mit dem Einlegeteil ergibt sich eine erheblich vereinfachte Konstruktion der erfindungsgemäßen Ölauffangvorrichtung, bei der außerdem eine einfache Montage des Einlegeteils innerhalb des Ölauffanggehäuses gewährleistet ist. Des weiteren führt die erfindungsgemäße Integration der Ölabsaugleitung in das Einlegeteil zu einer Bauteileverringerung und damit zu einer Reduzierung von Kosten.The inventive one-piece design of the oil suction line with the insert results in a considerably simplified construction of the oil catcher according to the invention, in which also a simple installation of the insert within the Oil catcher housing is guaranteed. Furthermore, the integration of the oil suction line according to the invention into the insert part leads to a component reduction and thus to a reduction of costs.

Dabei ist durch die Unterteilung des Ölauffanggehäuses in die wenigstens zwei Gehäuse abschnitte mit unterschiedlicher Bauraumtiefe, nämlich einen tiefen Gehäuseabschnitt und einen flachen Gehäuseabschnitt, sichergestellt, dass auch in extremen Fahrsituationen, insbesondere in steilen Bergaufpassagen, die Ölpumpe stets eine ausreichende Menge an Öl aus dem Ölauffanggehäuse ansaugen und an die zu schmierenden Stellen weiterleiten kann.It is due to the subdivision of the oil collection housing in the at least two housings sections with different space depth, namely a deep housing portion and a flat housing section, ensuring that even in extreme driving situations, especially in steep mountain passages, the oil pump always suck a sufficient amount of oil from the oil collection housing and can forward to the points to be lubricated.

In den Unteransprüchen sind weitere vorteilhafte Ausgestaltungen und Verbesserungen der erfindungsgemäßen Brennkraftmaschine enthalten.In the dependent claims, further advantageous refinements and improvements of the internal combustion engine according to the invention are included.

Eine noch kompaktere Bauform des Ölauffanggehäuses lässt sich erreichen, wenn der flache Gehäuseabschnitt des Ölauffanggehäuses eine Ausnehmung zur Aufnahme der Ölabsaugleitung aufweist. Außerdem wird auf diese Weise das Volumen des flachen Gehäuseabschnitts verringert, sodass tendenziell weniger Öl in den tiefen Gehäuseabschnitt, also den eigentlichen Ölsumpf, zurückgeführt wird.An even more compact design of the oil collection housing can be achieved if the flat housing section of the oil collection housing has a recess for receiving the Ölabsaugleitung. In addition, the volume of the flat housing portion is reduced in this way, so that tends to less oil in the deep housing section, so the actual oil sump, is returned.

Des weiteren kann vorgesehen sein, dass die Trennwand wenigstens eine Öffnung aufweist, die ein Zurückströmen von Öl von dem flachen Gehäuseabschnitt in den tiefen Gehäuseabschnitt ermöglicht. Durch diese Maßnahme werden zwei Ziele erreicht: Erstens, dass im Ruhezustand sämtliches Öl in den tiefen Gehäuseabschnitt strömen kann, sodass bei einem Ölwechsel lediglich der tiefe Gehäuseabschnitt entleert werden muss, wohingegen der flache Gehäuseabschnitt geschlossen bleiben kann. Dadurch kann außerdem eine Ölablassschraube und die hierfür erforderliche Gewindebohrung eingespart werden. Zweitens können auf diese Art und Weise die Probleme beseitigt werden, die ohne solche Öffnungen während der Produktion auftreten können, nämlich dass der Ölstand im vorderen, tiefen Gehäuseabschnitt bei einem gegebenenfalls mit einem LKW erfolgenden Transport der fertig montierten Brennkraftmaschine zu dem Ort, an dem das Fahrzeug montiert wird, dadurch verringert wird, dass das Öl über die Trennwand in den flachen Gehäuseabschnitt strömt und die vor Inbetriebnahme des Fahrzeugs notwendige Ölstandskontrolle dann einen falschen Messwert, nämlich einen scheinbar zu niedrigen Ölstand ergibt. Die Konsequenz wäre dann ein Nachfüllen von Öl und eine sich hieraus ergebende Überfüllung der Brennkraftmaschine. In der Praxis wird vor der Messung des Ölstands bislang die Brennkraftmaschine kurzzeitig gestartet, was nun nicht mehr erforderlich ist.Furthermore, it can be provided that the partition has at least one opening which allows a back flow of oil from the flat housing portion in the deep housing portion. By this measure, two goals are achieved: First, that at rest, all the oil can flow into the deep housing section, so that when changing the oil only the deep housing section must be emptied, whereas the flat housing section can remain closed. This can also save an oil drain plug and the required threaded hole. Secondly, in this way, the problems that can occur without such openings during production, namely that the oil level in the front, deep housing portion in possibly with a truck transporting the assembled engine to the place where the Vehicle is mounted, is reduced by the fact that the oil flows through the partition wall in the flat housing section and the necessary before the start of the vehicle oil level control then gives a false reading, namely a seemingly low oil level. The consequence would be a refilling of oil and a consequent overfilling of the internal combustion engine. In practice, the internal combustion engine has been started for a short time before the measurement of the oil level, which is no longer necessary.

Das Zurückströmen des Öls in den tiefen Gehäuseabschnitt wird unterstützt, wenn in einer weiteren vorteilhaften Weiterbildung der flache Gehäuseabschnitt in Richtung des tiefen Gehäuseabschnitts geneigt ist.The backflow of the oil into the deep housing section is assisted, if, in a further advantageous embodiment, the flat housing section is inclined in the direction of the deep housing section.

Ein Ausführungsbeispiel der Erfindung ist in der nachfolgenden Beschreibung und Zeichnung näher erläutert.An embodiment of the invention is explained in more detail in the following description and drawings.

Es zeigen:

Fig. 1
eine stark schematisierte Darstellung einer Brennkraftmaschine mit der erfindungsgemäßen Ölauffangvorrichtung;
Fig. 2
eine perspektivische Ansicht eines Ölauffanggehäuses der erfindungsgemäßen Ölauffangvorrichtung;
Fig. 3
eine weitere perspektivische Ansicht des Ölauffanggehäuses von Fig. 2 mit einem Einlegeteil und einer Ölpumpe;
Fig. 4
eine weitere perspektivische Ansicht des Ölauffanggehäuses von Fig. 2 mit einem Einlegeteil und einer Ölpumpe;
Fig. 5
eine schematisierte Darstellung eines Längsschnitts durch die erfindungsgemäße Ölauffangvorrichtung; und
Fig. 6
einen Schnitt nach der Linie VI-VI aus Fig. 5.
Show it:
Fig. 1
a highly schematic representation of an internal combustion engine with the oil catcher according to the invention;
Fig. 2
a perspective view of an oil trap housing of the oil catcher according to the invention;
Fig. 3
another perspective view of the oil collection housing of Fig. 2 with an insert and an oil pump;
Fig. 4
another perspective view of the oil collection housing of Fig. 2 with an insert and an oil pump;
Fig. 5
a schematic representation of a longitudinal section through the oil catcher according to the invention; and
Fig. 6
a section along the line VI-VI Fig. 5 ,

Fig. 1 zeigt in einer stark schematisierten Darstellung eine Brennkraftmaschine 1 mit einem Kurbelgehäuse 2, welches ein Kurbelgehäuse-Oberteil 3 und ein auch als Bedplate bezeichnetes Kurbelgehäuse-Unterteil 4 aufweist. An dem im vorliegenden Fall in V-Bauweise ausgeführten Kurbelgehäuse 2 sind zwei Zylinderköpfe 5a und 5b angebracht, die in an sich bekannter Weise ausgeführt sein können. Zwischen dem Kurbelgehäuse-Oberteil 3 und dem Kurbelgehäuse-Unterteil 4 ist in ebenfalls an sich bekannter Weise eine Kurbelwelle 6 drehbar gelagert. Des weiteren ist unterhalb des Kurbelgehäuses 2 ein mit dem Kurbelgehäuse-Unterteil 4 verbundenes Ölauffanggehäuse 7 vorgesehen, das in ebenfalls an sich bekannter Weise zur Aufnahme des Schmieröls für die Brennkraftmaschine 1 ausgebildet und nach unten durch eine Ölwanne 8 abgeschlossen ist. Die Ölwanne 8 kann beispielsweise in Form eines Deckels aus Blech ausgebildet sein und ist erforderlich, da das Ölauffanggehäuse 7 im vorliegenden Fall als Druckgussteil ausgebildet ist und daher beiderseitige Öffnungen aufweist. Statt in V-Bauweise könnte die Brennkraftmaschine 1 auch in Reihen-, Boxer- oder einer anderen Bauweise ausgeführt sein. Fig. 1 shows in a highly schematic representation of an internal combustion engine 1 with a crankcase 2, which has a crankcase upper part 3 and also referred to as bedplate crankcase lower part 4. On the executed in the present case in V-type crankcase 2, two cylinder heads 5a and 5b are mounted, which can be carried out in a conventional manner. Between the crankcase upper part 3 and the crankcase lower part 4, a crankshaft 6 is rotatably mounted in a manner also known per se. Furthermore, below the crankcase 2, there is provided an oil-collecting housing 7, which is connected to the crankcase lower part 4 and is formed in a manner also known per se for receiving the lubricating oil for the internal combustion engine 1 and is closed at the bottom by an oil pan 8. The oil pan 8 may be formed, for example in the form of a lid made of sheet metal and is required because the oil trap housing 7 is formed in the present case as a die-cast part and therefore has mutual openings. Instead of a V-construction, the internal combustion engine 1 could also be designed in a row, boxer or other construction.

In der perspektivischen Ansicht gemäß Fig. 2 ist zu erkennen, dass an einer umlaufenden Wandung 9 des Ölauffanggehäuses 7 ein Ölkühler 10 und ein Ölfilter 11 angebracht sind, auf deren Funktion bzw. Wirkungsweise an dieser Stelle jedoch nicht näher eingegangen wird, da sie an sich bekannt sind. Das Ölauffanggehäuse 7 weist zwei Gehäuseabschnitte auf, nämlich einen in Fig. 2 annähernd vollständig erkennbaren, flachen Gehäuseabschnitt 12 und einen sich an den flachen Gehäuseabschnitt 12 anschließenden, tiefen Gehäuseabschnitt 13, der die größte Menge des Schmieröls für die Brennkraftmaschine 1 aufnimmt und damit den eigentlichen Ölsumpf bildet und an dessen Außenseite sich der Ölkühler 10 und der Ölfilter 11 befinden. Der flache Gehäuseabschnitt 12 weist eine aus dem Boden desselben herausgeformte mittige Ausnehmung 14 auf, die sich zwischen zwei Erhebungen 15 befindet und deren Funktion nachfolgend näher erläutert wird.In the perspective view according to Fig. 2 It can be seen that on an encircling wall 9 of the oil collection housing 7, an oil cooler 10 and an oil filter 11 are mounted, on the function or mode of action at this point, however, will not be discussed, since they are known per se. The oil trap housing 7 has two housing sections, namely a in Fig. 2 approximately completely recognizable, flat housing portion 12 and a subsequent to the flat housing portion 12, deep housing portion 13 which receives the largest amount of lubricating oil for the internal combustion engine 1 and thus forms the actual oil sump and on the outside of the oil cooler 10 and the oil filter 11th are located. The flat housing section 12 has a central recess 14 formed out of the bottom thereof, which is located between two elevations 15 and whose function will be explained in more detail below.

Wie aus den Figuren 3 und 4 hervorgeht, sind innerhalb des Ölauffanggehäuses 7 ein Einlegeteil 16 und eine Ölpumpe 17 angeordnet, die zusammen mit dem Ölauffanggehäuse 7 eine Ölauffangvorrichtung 18 für die Brennkraftmaschine 1 bilden. Das im vorliegenden Fall aus Kunststoff bestehende und auf nicht dargestellte Art und Weise mit dem Ölauffanggehäuse 7 verschraubte Einlegeteil 16 weist dabei eine Trennwand 19 auf, die einen vertikalen Abschnitt 19a und einen horizontalen Abschnitt 19b aufweist und die beiden Gehäuseabschnitte 12 und 13 voneinander trennt. Bei Bergauffahrten verhindert die Trennwand 19, dass das sich in dem tiefen Gehäuseabschnitt 13 befindliche Öl vollständig in den flachen Gehäuseabschnitt 12 abströmt. Zu der Ölpumpe 17 führen zwei Ölabsaugleitungen 20 und 21, wobei die erste Ölabsaugleitung 20 dafür vorgesehen ist, aus dem tiefen Gehäuseabschnitt 13, in dem sich die erhebliche größere Ölmenge befindet, Öl abzusaugen. Aus diesem Grund erstreckt sich die erste Ölabsaugleitung 20 annähernd bis zu dem Boden des tiefen Gehäuseabschnitts 13. Die zweite, zu dem flachen Gehäuseabschnitt 12 führende Ölabsaugleitung 21 ist einstückig mit dem Einlegeteil 16 ausgebildet und weist einen flexiblen Abschnitt 21a auf, der beweglich mit der Ölpumpe 17 verbunden ist, sodass eventuelle Bauteil- und Montagetoleranzen ausgeglichen werden können. Dabei dient die Ausnehmung 14 zur Aufnahme der Ölabsaugleitung 21 und ist deren Kontur nachgebildet, sodass möglichst wenig Raum zwischen diesen beiden Bauteilen verbleibt.Like from the Figures 3 and 4 As can be seen, an insert 16 and an oil pump 17 are disposed within the oil trap housing 7, which together with the oil trap housing 7 form an oil-collecting device 18 for the internal combustion engine 1. The in the present case of plastic and not shown in the manner screwed to the oil trap housing 7 insert 16 has a partition 19, which has a vertical portion 19a and a horizontal portion 19b and the two housing sections 12 and 13 separated from each other. When driving uphill, the partition wall 19 prevents the oil located in the deep housing section 13 from flowing completely into the flat housing section 12. To the oil pump 17, two oil suction pipes 20 and 21, with the first oil suction pipe 20 provided therefor, lead out the deep housing portion 13, in which there is the significant larger amount of oil to suck oil. For this reason, the first Ölabsaugleitung 20 extends approximately to the bottom of the deep housing portion 13. The second, leading to the flat housing portion 12 Ölabsaugleitung 21 is integrally formed with the insert 16 and has a flexible portion 21 a, which is movable with the oil pump 17 is connected so that any component and assembly tolerances can be compensated. In this case, the recess 14 serves to receive the Ölabsaugleitung 21 and the contour is replicated, so that the smallest possible space between these two components remains.

Die Ölpumpe 17 saugt ständig über beide Ölabsaugleitungen 20 und 21 Öl an und leitet es zu den Zylinderköpfen 5a und 5b, wobei in dem Fall, in dem sich in dem flachen Gehäuseabschnitt 12 kein Öl befindet, über die Ölabsaugleitung 21 im wesentlichen nur Luft angesaugt wird. In Fig. 3 ist des weiteren zu erkennen, dass die zu dem flachen Gehäuseabschnitt 12 führende Ölabsaugleitung 20 annähernd bis zu der das Ölauffanggehäuse 7 umgebenden Wandung 9 verläuft, sodass bei Bergauffahrten das sich in dem flachen Gehäuseabschnitt 12, also im hinteren Bereich des Ölauffanggehäuses 7, ansammelnde Schmieröl von der Ölpumpe 17 über die Ölabsaugleitung 21 angesaugt und in den tiefen Gehäuseabschnitt 13, also in den vorderen Bereich des Ölauffanggehäuses 7, gepumpt werden kann. Die Wandung 9 bildet an ihrer Oberseite eine Trennfläche 22, an der sie mit dem Kurbelgehäuse-Unterteil 4 des Kurbelgehäuses 2 verbunden ist.The oil pump 17 constantly sucks oil via both oil suction lines 20 and 21 and directs it to the cylinder heads 5a and 5b, and in the case where there is no oil in the flat housing section 12, substantially only air is drawn via the oil suction line 21 , In Fig. 3 Furthermore, it can be seen that the leading to the flat housing section 12 Ölabsaugleitung 20 approximately to the surrounding the oil trap housing 7 wall 9, so when driving uphill in the flat housing portion 12, ie in the rear region of the oil collection housing 7, accumulating lubricating oil the oil pump 17 can be sucked in via the oil suction line 21 and pumped into the deep housing section 13, ie into the front region of the oil catch housing 7. The wall 9 forms on its upper side a separating surface 22, to which it is connected to the crankcase lower part 4 of the crankcase 2.

Das Einlegeteil 16 weist zwei auf beiden Seiten des Ölauffanggehäuses 7 angeordnete Ölrückführkanäle 23 und 24 auf, mit denen das von den Zylinderköpfen 5a und 5b über das Kurbelgehäuse 2 zurückströmende Öl in an sich bekannter Weise in die beiden Gehäuseabschnitte 12 und 13 des Ölauffanggehäuses 7 geleitet wird. Die beiden Ölrückführkanäle 23 und 24 sind über die Trennwand 19 sowie über zwei im vorderen bzw. hinteren Bereich des Einlegeteils 16 angeordnete Stege 25 bzw. 26 miteinander verbunden, um dem Einlegeteil 16 die nötige Steifigkeit zu geben. Der im hinteren, also der Ölpumpe 17 abgewandten Bereich des Einlegeteils 16 verlaufende Steg 26 dient außerdem zur Halterung der Ölabsaugleitung 21 für den flachen Gehäuseabschnitt 12.The insert 16 has two arranged on both sides of the oil trap housing 7 oil return channels 23 and 24, with which the back flowing from the cylinder heads 5a and 5b via the crankcase 2 oil in a conventional manner in the two housing sections 12 and 13 of the oil collection housing 7 is passed , The two oil return channels 23 and 24 are connected to each other via the partition wall 19 and two in the front and rear of the insert 16 webs 25 and 26, respectively, to give the insert 16, the necessary rigidity. The remote in the rear, so the oil pump 17 region of the insert 16 extending web 26 also serves to hold the Ölabsaugleitung 21 for the flat housing portion 12th

Da, wie oben beschrieben, das aus den Zylinderköpfen 5a und 5b zurückströmende Öl auch in den flachen Gehäuseabschnitt 12 gelangt, wird durch die Anpassung der Form des Einlegeteils 16 an die Form des Ölauffanggehäuses 7 im Bereich des flachen Gehäuseabschnitts 12, insbesondere durch die Gestaltung der Ausnehmung 14 und der beiden Erhebungen 15, das Volumen des flachen Gehäuseabschnitts 12 minimiert, um nur eine minimale Ölmenge in den flachen Gehäuseabschnitt 12 gelangen zu lassen. Um dafür zu sorgen, dass das Öl im Ruhezustand der Brennkraftmaschine 1 in die Hauptölkammer, also in den tiefen Gehäuseabschnitt 13 zurückströmt, ist, wie in Fig. 5 erkennbar, der flache Gehäuseabschnitt 12 in Richtung des tiefen Gehäuseabschnitts 13 geneigt. Wenn die Brennkraftmaschine, wie im vorliegenden Fall, unter einem bestimmten Winkel in ein nicht dargestelltes Kraftfahrzeug eingebaut ist, so sollte dieser Neigungswinkel entsprechend seiner Richtung berücksichtigt werden. Für ein Zurückströmen des Öls von dem flachen Gehäuseabschnitt 12 in den tiefen Gehäuseabschnitt 13 sorgen außerdem zwei in dem vertikalen Abschnitt 19a der Trennwand 19 vorgesehene Öffnungen 27 und 28, die, wie in Fig. 6 erkennbar ist, durch jeweilige Aussparungen in einem die beiden Gehäuseabschnitte 12 und 13 gegeneinander abdichtenden Dichtungselement 29 gebildet sind, zu dessen Aufnahme die Trennwand 19 eine entsprechende Nut 30 aufweist. Die Öffnungen 27 und 28 weisen eine definierte, verhältnismäßig geringe Größe von beispielsweise 10 bis 20 mm2 auf, damit das Öl nicht durch dieselben von dem tiefen Gehäuseabschnitt 13 in den flachen Gehäuseabschnitt 12 strömen kann. Der Querschnitt und die Anzahl der Öffnungen 27 und 28 hängen insbesondere von der Größe der beiden Gehäuseabschnitte 12 und 13 ab. Die Trennwand 19 trennt also im dynamischen Zustand, also beispielsweise bei einer Bergauffahrt, die beiden Gehäuseabschnitte 12 und 13 voneinander ab, wohingegen im statischen Zustand, also im Ruhezustand der Brennkraftmaschine 1, aufgrund der beiden Öffnungen 27 und 28 keine Trennung der beiden Gehäuseabschnitte 12 und 13 mehr gegeben ist.Since, as described above, the oil flowing back from the cylinder heads 5a and 5b also enters the flat housing section 12, by adapting the shape of the insert 16 to the shape of the oil catch housing 7 in the region of the flat housing section 12, in particular by the design of Recess 14 and the two elevations 15, the volume of the flat housing portion 12 minimized to allow only a minimum amount of oil into the flat housing portion 12 to pass. In order to ensure that the oil flows back in the idle state of the internal combustion engine 1 in the main oil chamber, ie in the deep housing portion 13, as in Fig. 5 recognizable, the flat housing portion 12 inclined in the direction of the deep housing portion 13. If the internal combustion engine, as in the present case, is installed at a certain angle in an unillustrated motor vehicle, then this inclination angle should be taken into account according to its direction. For a back flow of the oil from the flat housing portion 12 in the deep housing portion 13 also provided in the vertical portion 19 a of the partition wall 19 openings 27 and 28, which, as in Fig. 6 can be seen, are formed by respective recesses in a two housing sections 12 and 13 against each other sealing sealing element 29, to whose inclusion the partition wall 19 has a corresponding groove 30. The openings 27 and 28 have a defined, relatively small size, for example, 10 to 20 mm 2 , so that the oil can not flow through the same from the deep housing portion 13 in the flat housing portion 12. The cross section and the number of openings 27 and 28 depend in particular on the size of the two housing sections 12 and 13. The partition 19 thus separates in the dynamic state, so for example when driving uphill, the two housing sections 12 and 13 from each other, whereas in the static state, ie at rest of the internal combustion engine 1, due to the two openings 27 and 28 no separation of the two housing sections 12 and 13 more is given.

Claims (7)

  1. Oil tray device for an internal combustion engine (1) with an oil tray housing (7) which is arranged within a crankcase (2) and has at least two housing sections (12, 13) of differing construction space depth, with an oil pump (17) for sucking oil out of the at least two housing sections (12, 13), from which oil pump a respective oil suction line (21, 20) is guided to at least two of the at least two housing sections (12, 13), and with an insert part (16) which has at least one partition (19) separating the two housing sections (12, 13), wherein the oil suction line (21) leading to the shallow housing section (12) of the oil tray housing (7) is formed integrally with the insert part (16), characterized in that the partition (19) has at least one opening (27, 28) which enables oil to flow back from the shallow housing section (12) into the deep housing section (13), the at least one opening (27, 28) in the partition (19) being formed by a cutout in a sealing element (29) which seals off the two housing sections (12, 13) from each other.
  2. Oil tray device according to Claim 1, characterized in that the shallow housing section (12) of the oil tray housing (7) has a recess (14) for accommodating the oil suction line (21).
  3. Oil tray device according to Claim 1, characterized in that the shallow housing section (12) is inclined in the direction of the deep housing section (13).
  4. Oil tray device according to Claim 1, characterized in that the partition (19) has a groove (30) for receiving the sealing element (29).
  5. Oil tray device according to one of Claims 1 to 4, characterized in that the oil suction line (20) leading to the shallow housing section (12) runs at least approximately as far as a wall (9) surrounding the oil tray housing (7).
  6. Oil tray device according to one of Claims 1 to 5, characterized in that the oil suction line (20) leading to the deep housing section (13) is connected movably to the oil pump (17).
  7. Oil tray device according to one of Claims 1 to 6, characterized in that the insert part (16) is composed of plastic and is screwed to the oil tray housing (7).
EP20070010765 2006-07-14 2007-05-31 Oil tray for a combustion engine Active EP1878884B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200610032794 DE102006032794A1 (en) 2006-07-14 2006-07-14 Oil catcher for an internal combustion engine

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EP1878884A2 EP1878884A2 (en) 2008-01-16
EP1878884A3 EP1878884A3 (en) 2010-09-01
EP1878884B1 true EP1878884B1 (en) 2011-12-21

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DE (1) DE102006032794A1 (en)

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DE102017002840A1 (en) 2017-03-24 2018-09-27 Deutz Aktiengesellschaft Device for optimizing the lubricating oil side heating behavior of an internal combustion engine and method for operating an internal combustion engine

Also Published As

Publication number Publication date
EP1878884A2 (en) 2008-01-16
CN101105147A (en) 2008-01-16
DE102006032794A1 (en) 2008-01-17
EP1878884A3 (en) 2010-09-01

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