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EP1992796B1 - Oil tray - Google Patents

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Publication number
EP1992796B1
EP1992796B1 EP08008653.1A EP08008653A EP1992796B1 EP 1992796 B1 EP1992796 B1 EP 1992796B1 EP 08008653 A EP08008653 A EP 08008653A EP 1992796 B1 EP1992796 B1 EP 1992796B1
Authority
EP
European Patent Office
Prior art keywords
suction channel
oil
oil sump
nose
suction
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.)
Revoked
Application number
EP08008653.1A
Other languages
German (de)
French (fr)
Other versions
EP1992796A1 (en
Inventor
Wolf-Dietrich Bicker
Peter Eichert
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.)
GM Global Technology Operations LLC
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GM Global Technology Operations LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Application filed by GM Global Technology Operations LLC filed Critical GM Global Technology Operations LLC
Publication of EP1992796A1 publication Critical patent/EP1992796A1/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
    • 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
    • F01M2011/0066—Oilsumps with passages in the wall, e.g. for axles or fluid passages
    • 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 pan for an internal combustion engine.
  • an oil pan for an internal combustion engine which has a bottom part for the oil sump and a suction pipe, which opens into a suction region of the bottom part.
  • the suction region has a cylindrical wall section, in which one or more suction windows are arranged and which is closed at the top with a lid.
  • An oil pump provides at the intake, in which the suction pipe opens, for a negative pressure, whereby the oil located in the bottom part first flows through the suction window in the suction and then from the suction into the suction pipe.
  • a disadvantage of this embodiment is the complex structural design of the intake, which leads to a high manufacturing costs and on the other hand, the installation and maintenance difficult.
  • the oil pan according to the invention for an internal combustion engine has a bottom part for forming an oil sump and a suction channel for sucking oil.
  • the suction channel is arranged such that it opens into the oil sump via an orifice.
  • the suction channel has a nose for at least partially covering the suction channel cross section in the horizontal flow direction.
  • the arrangement of a preferably cap-shaped nose on the suction channel in the region of the mouth is by a simple structural design of the suction channel, without additional elements must be arranged in the oil pan, a uniform flow of the oil sump into the suction channel for the oil to be sucked achieved, which is prevented by the nose that air can enter the suction channel.
  • the nose it is achieved that the oil can preferably flow into the suction channel only at the lowest oil level in the oil sump.
  • the nose extends over at least a portion of the Saugkanalqueriteses in the flow direction, so that between the bottom part and the nose preferably a gap is formed, through which the oil can flow from the oil sump into the suction channel.
  • the suction channel is closed in the mouth region through the nose up and only a narrow gap is formed in the mouth region of the suction channel, a disadvantageous vortex effect of the incoming oil is prevented.
  • the distance between the lower region of the nose and the portion of the suction channel opposite the lower region of the nose preferably corresponds to the cross-sectional area of the suction channel.
  • the inventive arrangement of a nose for at least partially covering the Saugkanalqueriteses in the horizontal flow direction in the mouth in the suction channel is in particular causes no air due to the negative pressure in the mouth area is sucked during the promotion of the oil, which is disadvantageous for the engine lubrication would affect.
  • the oil level in the oil pan is prevented by the nose that in the mouth region of the suction channel, the oil level can drop so much that air could get into the suction channel.
  • the nose achieves a simple structural design with only a low manufacturing cost of the oil sump.
  • the assembly cost is reduced.
  • fewer parts are required in the oil pan according to the invention, since, for example, no additional device for suction in the region of the oil sump is required.
  • no additional cover is required by the arrangement of a nose at the mouth of the suction channel. The fact that now fewer parts are needed, the other parts in the oil pan, in particular in the area of the oil sump, parts have greater tolerances.
  • the preparation can be done easily and quickly, for example, by a side opening is milled into a sealed with a cross-sectional area of the tube.
  • the nose is preferably conical.
  • the nose extends geodetically from top to bottom. This creates a gap in the region of the mouth between the bottom part and the nose, which the oil has to pass before the oil can flow into the suction channel, preventing air from getting into the suction channel together with the oil.
  • the nose is integrally connected to the suction channel. Due to the one-piece connection of the suction tube with the nose, a simple production is possible and possible leakage between the transition region of the suction tube to the nose are prevented.
  • the suction channel is at least partially connected in one piece with the bottom part.
  • the suction channel is preferably connected in one piece to the bottom part in the area opposite the nose.
  • the bottom part at least partially forms the mouth.
  • the area of the suction channel, on which the nose is arranged projects beyond a part of the bottom part, so that the mouth area on the nose opposite side of the suction channel is at least partially formed by the bottom part.
  • the bottom part is flat in the region of the mouth. Due to the planar design of the bottom part, the distance of the nose to the bottom part is preferably uniform, so that the oil flow can be sucked evenly into the suction channel, whereby the oil flow in turn can flow with a constant pressure over the cross-sectional area of the suction channel into the suction channel. Due to the uniform inflow, an adverse vortex flow of the oil flow is avoided.
  • the invention further relates to an internal combustion engine having a crankshaft housing and an oil pan connected to the crankshaft housing, wherein the oil pan can be trained and developed as described above.
  • oil pan 10 for an internal combustion engine has a bottom part 12 for forming an oil sump and a suction channel 14 for the suction of oil, wherein the suction channel 14 opens via an orifice 16 into the oil sump.
  • the oil sump of the bottom part 12 of the oil pan 10 is the oil, which is provided for the engine lubrication.
  • the oil sump is here preferably formed perpendicular to the bottom of the bottom part 12.
  • the suction channel 14 is preferably cone-shaped, wherein the diameter of the suction channel 14 at the mouth 16 has a smaller diameter than at the mouth 16 opposite side, on which a filter unit 18 is arranged.
  • the filter unit 18 can for example consist of a coarse filter which sieves predominantly larger particles from the oil flow to be conveyed. A further fine filtering can take place in a second filter (not shown here), the filter elements of which may preferably consist of paper or fibrous material fillings.
  • a sealing element 20 for example a plug, is provided in order to seal the suction channel 14 at the opposite side of the mouth 16.
  • the suction channel 14 preferably has the shape of a straight elongated tube, wherein advantageously in the suction channel 14 no flow-deflecting elements are provided.
  • the suction channel 14 in the region of the mouth 16 a nose 22 for at least partially covering the Saugkanalquerroughes in the horizontal flow direction.
  • the nose 22 extends over at least part of the cross-sectional area of the suction channel 14, the nose 22 preferably being arranged on the side of the suction channel 14 opposite the bottom part 12. Between the bottom part 12 and the nose 22, a gap is formed, through which the oil from the oil sump can flow in the flow direction in the suction channel 14.
  • the nose 22 In the region of the mouth 16 of the suction channel 14 at the point at which the nose 22 is arranged, preferably designed to be longer than the nose 22 opposite region of the suction channel 14, which is adjacent to the bottom part 12, so that the part of the suction channel 14 with the nose 22 may overlap a portion of the bottom portion 12.
  • the bottom part 12 may in this case at least partially the mouth 16 form and is preferably formed flat in the mouth 16.
  • the nose 22 extends geodetically from top to bottom in the direction of the bottom part 12, wherein the nose 22 is formed substantially perpendicular to the bottom part 12.
  • a gap is formed, through which a defined amount of oil flow from the oil sump can flow in the direction of the suction channel 14, being prevented by means of the nose 22 in a simple manner that air together with the oil in can flow the suction channel 14.

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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 Ölwanne für eine Brennkraftmaschine.The invention relates to an oil pan for an internal combustion engine.

Aus der DE 10 2004 024 517 A1 ist eine Ölwanne für eine Brennkraftmaschine bekannt, welche ein Bodenteil für den Ölsumpf und ein Saugrohr, welches in einen Ansaugbereich des Bodenteils mündet, aufweist. Der Ansaugbereich weist einen zylinderförmigen Wandabschnitt auf, in welchem ein oder mehrere Ansaugfenster angeordnet sind und welcher nach oben mit einem Deckel verschlossen ist. Eine Ölpumpe sorgt am Ansaugbereich, in welchen das Saugrohr mündet, für einen Unterdruck, wodurch das sich im Bodenteil befindliche Öl zunächst durch das Ansaugfenster in den Ansaugbereich und anschließend aus dem Ansaugbereich in das Saugrohr strömt. Nachteilig bei dieser Ausführungsform ist die aufwendige konstruktive Ausgestaltung des Ansaugbereiches, was zum einen zu hohen Herstellungskosten führt und zum anderen die Montage und Wartung erschwert.From the DE 10 2004 024 517 A1 an oil pan for an internal combustion engine is known, which has a bottom part for the oil sump and a suction pipe, which opens into a suction region of the bottom part. The suction region has a cylindrical wall section, in which one or more suction windows are arranged and which is closed at the top with a lid. An oil pump provides at the intake, in which the suction pipe opens, for a negative pressure, whereby the oil located in the bottom part first flows through the suction window in the suction and then from the suction into the suction pipe. A disadvantage of this embodiment is the complex structural design of the intake, which leads to a high manufacturing costs and on the other hand, the installation and maintenance difficult.

Es ist daher Aufgabe der vorliegenden Erfindung eine Ölwanne für eine Brennkraftmaschine zur Verfügung zu stellen, welche sich durch einen vereinfachten Aufbau und durch geringe Herstellungskosten auszeichnet.It is therefore an object of the present invention to provide an oil pan for an internal combustion engine, which is characterized by a simplified structure and low production costs.

Aus der US 3,509,861 A ist es bekannt, einen Ansaugkanal einstückig mit der Ölwanne auszubilden und einen Mündungsbereich des Ansaugkanals so zu gestalten, dass die Ansaugung auch bei schwankendem Ölstand sichergestellt ist. Die US 2004/0084250 A1 offenbart ebenfalls einen Ansaugkanal, der teilweise einstückig mit der Ölwanne ausgebildet ist.From the US 3,509,861 A It is known to form an intake duct in one piece with the oil pan and to design a mouth region of the intake duct so that the suction is ensured even with fluctuating oil level. The US 2004/0084250 A1 also discloses an intake passage formed partially integral with the oil pan.

Aus der US 6,142,257 A ist es bekannt, den Mündungsbereich eines Ansaugkanals besonders aufzuweiten, so dass ein breiter Querschnitt zum Ansaugen des Öls bereitsteht.From the US 6,142,257 A It is known to particularly widen the mouth region of an intake passage, so that a wide cross-section is ready for sucking the oil.

Die Lösung der Aufgabe erfolgt erfindungsgemäß durch die Merkmale des Anspruchs 1. Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen angegeben.The object is achieved by the features of claim 1. Advantageous embodiments of the invention are specified in the dependent claims.

Die erfindungsgemäße Ölwanne für eine Brennkraftmaschine weist ein Bodenteil zur Ausbildung eines Ölsumpfes und einen Saugkanal zur Ansaugung von Öl auf. Der Saugkanal ist dabei derart angeordnet, dass er über eine Mündung in den Ölsumpf mündet. Im Bereich der Mündung weist der Saugkanal eine Nase zur zumindest teilweisen Abdeckung des Saugkanalquerschnittes in horizontaler Strömungsrichtung auf.The oil pan according to the invention for an internal combustion engine has a bottom part for forming an oil sump and a suction channel for sucking oil. The suction channel is arranged such that it opens into the oil sump via an orifice. In the region of the mouth, the suction channel has a nose for at least partially covering the suction channel cross section in the horizontal flow direction.

Durch die Anordnung einer, vorzugsweise mützenförmig ausgebildeten, Nase an dem Saugkanal im Bereich der Mündung wird durch eine einfache konstruktive Ausgestaltung des Saugkanals, ohne dass zusätzliche Elemente in der Ölwanne angeordnet werden müssen, eine gleichmäßige Strömung von dem Ölsumpf in den Saugkanal für das anzusaugende Öl erreicht, wobei durch die Nase verhindert wird, dass Luft in den Saugkanal gelangen kann. Durch die Nase wird erreicht, dass das Öl vorzugsweise nur am tiefsten Ölstand im Ölsumpf in den Saugkanal einströmen kann. Die Nase erstreckt sich dabei über mindestens einen Teilbereich des Saugkanalquerschnittes in Strömungsrichtung, so dass zwischen Bodenteil und der Nase vorzugsweise ein Spalt ausgebildet ist, durch welchen das Öl vom Ölsumpf in den Saugkanal strömen kann. Dadurch, dass der Saugkanal im Mündungsbereich durch die Nase nach oben geschlossen ist und lediglich ein schmaler Spalt im Mündungsbereich des Saugkanals ausgebildet ist, wird eine nachteilige Strudelwirkung des einströmenden Öls verhindert. Vertikal zur Strömungsrichtung entspricht der Abstand zwischen dem unteren Bereich der Nase und dem des unteren Bereichs der Nase gegenüberliegenden Teils des Saugkanals vorzugsweise der Querschnittsfläche des Saugkanals. Mit Hilfe einer Ölpumpe wird am Mündungsbereich des Saugrohres ein Unterdruck erzeugt, wodurch das sich im Ölsumpf des Bodenteils befindliche Öl durch einen durch das Bodenteil und die Nase gebildeten Spalt in die Mündung des Saugkanals strömen kann. Das angesaugte Öl strömt durch den Saugkanal und erreicht insbesondere die einzelnen Motorschmierstellen, wie z.B. das Kugelwellenlager, das Pleuellager, den Stößel oder das Nockenwellenlager.The arrangement of a preferably cap-shaped nose on the suction channel in the region of the mouth is by a simple structural design of the suction channel, without additional elements must be arranged in the oil pan, a uniform flow of the oil sump into the suction channel for the oil to be sucked achieved, which is prevented by the nose that air can enter the suction channel. Through the nose it is achieved that the oil can preferably flow into the suction channel only at the lowest oil level in the oil sump. The nose extends over at least a portion of the Saugkanalquerschnittes in the flow direction, so that between the bottom part and the nose preferably a gap is formed, through which the oil can flow from the oil sump into the suction channel. Characterized in that the suction channel is closed in the mouth region through the nose up and only a narrow gap is formed in the mouth region of the suction channel, a disadvantageous vortex effect of the incoming oil is prevented. Vertically to the flow direction, the distance between the lower region of the nose and the portion of the suction channel opposite the lower region of the nose preferably corresponds to the cross-sectional area of the suction channel. With the help of an oil pump is generates a negative pressure at the mouth region of the suction pipe, whereby the oil located in the oil sump of the bottom part can flow through a gap formed by the bottom part and the nose into the mouth of the suction channel. The sucked oil flows through the suction channel and in particular reaches the individual engine lubrication points, such as the spherical shaft bearing, the connecting rod bearing, the plunger or the camshaft bearing.

Durch die erfindungsgemäße Anordnung einer Nase zur zumindest teilweisen Abdeckung des Saugkanalquerschnittes in horizontaler Strömungsrichtung im Bereich der Mündung in den Saugkanal wird insbesondere bewirkt, dass keine Luft aufgrund des wirkenden Unterdruckes im Mündungsbereich während der Förderung des Öls mit angesaugt wird, welches sich nachteilig für die Motorschmierung auswirken würde. Insbesondere bei beispielsweise starken Kurvenfahrten des Fahrzeuges, wobei es zu einem Schwanken des Ölpegels in der Ölwanne kommen kann, wird durch die Nase verhindert, dass im Mündungsbereich des Saugkanals der Ölpegel so stark absinken kann, dass Luft in den Saugkanal gelangen könnte.The inventive arrangement of a nose for at least partially covering the Saugkanalquerschnittes in the horizontal flow direction in the mouth in the suction channel is in particular causes no air due to the negative pressure in the mouth area is sucked during the promotion of the oil, which is disadvantageous for the engine lubrication would affect. In particular, for example, in strong cornering of the vehicle, which can lead to a fluctuation of the oil level in the oil pan is prevented by the nose that in the mouth region of the suction channel, the oil level can drop so much that air could get into the suction channel.

Ferner wird durch die Nase eine einfache konstruktive Ausgestaltung mit lediglich geringen Herstellungskosten der Ölwanne erreicht. Zudem wird der Montageaufwand verringert. Im Gegensatz zu bekannten Ölwannen werden bei der erfindungsgemäßen Ölwanne weniger Teile benötigt, da beispielsweise keine zusätzliche Vorrichtung zur Ansaugung im Bereich des Ölsumpfes erforderlich ist. Insbesondere wird durch die Anordnung einer Nase an der Mündung des Saugkanals kein zusätzlicher Deckel mehr benötigt. Dadurch, dass nunmehr weniger Teile benötigt werden, können die übrigen in der Ölwanne, insbesondere im Bereich des Ölsumpfes, befindlichen Teile größere Toleranzen aufweisen.Furthermore, the nose achieves a simple structural design with only a low manufacturing cost of the oil sump. In addition, the assembly cost is reduced. In contrast to known oil pans fewer parts are required in the oil pan according to the invention, since, for example, no additional device for suction in the region of the oil sump is required. In particular, no additional cover is required by the arrangement of a nose at the mouth of the suction channel. The fact that now fewer parts are needed, the other parts in the oil pan, in particular in the area of the oil sump, parts have greater tolerances.

Die Herstellung kann einfach und schnell erfolgen, indem beispielsweise in ein mit einer Querschnittsfläche verschlossenes Rohr eine seitliche Öffnung eingefräst wird. Zur leichteren Herstellbarkeit ist die Nase vorzugsweise konisch ausgebildet.The preparation can be done easily and quickly, for example, by a side opening is milled into a sealed with a cross-sectional area of the tube. For ease of manufacture, the nose is preferably conical.

Vorzugsweise erstreckt sich die Nase geodätisch von oben nach unten. Dadurch entsteht im Bereich der Mündung zwischen dem Bodenteil und der Nase ein Spalt, den das Öl passieren muss, bevor das Öl in den Saugkanal strömen kann, wobei verhindert wird, dass Luft zusammen mit dem Öl in den Saugkanal gelangen kann.Preferably, the nose extends geodetically from top to bottom. This creates a gap in the region of the mouth between the bottom part and the nose, which the oil has to pass before the oil can flow into the suction channel, preventing air from getting into the suction channel together with the oil.

Nach einer weiteren Ausführungsform ist die Nase einstückig mit dem Saugkanal verbunden. Durch die einstückige Verbindung des Saugrohres mit der Nase ist eine einfache Fertigung möglich und mögliche Leckagen zwischen dem Übergangsbereich des Saugrohres zu der Nase werden verhindert.According to a further embodiment, the nose is integrally connected to the suction channel. Due to the one-piece connection of the suction tube with the nose, a simple production is possible and possible leakage between the transition region of the suction tube to the nose are prevented.

Ferner ist vorzugsweise vorgesehen, dass der Saugkanal zumindest teilweise einstückig mit dem Bodenteil verbunden ist. Der Saugkanal ist dabei vorzugsweise in dem der Nase gegenüberliegenden Bereich einstückig mit dem Bodenteil verbunden. Durch die einstückige Ausführungsform wird eine kompakte Bauweise erzielt, welche gleichzeitig eine Gewichts- und Kostenersparnis darstellt. Fehlmontagen bezüglich des Saugkanals, wodurch eventuelle Leckagen auftreten können, werden durch die erfindungsgemäße Anordnung ausgeschlossen.Furthermore, it is preferably provided that the suction channel is at least partially connected in one piece with the bottom part. The suction channel is preferably connected in one piece to the bottom part in the area opposite the nose. By the one-piece embodiment, a compact design is achieved, which also represents a weight and cost savings. Faulty mounting with respect to the suction channel, which may cause any leaks are excluded by the inventive arrangement.

Gemäß einer weiteren Ausführungsform bildet das Bodenteil zumindest teilweise die Mündung aus. Dabei überragt der Bereich des Saugkanals, an dem die Nase angeordnet ist, einen Teil des Bodenteils, so dass der Mündungsbereich auf der der Nase gegenüberliegenden Seite des Saugkanals zumindest teilweise durch das Bodenteil gebildet wird.According to a further embodiment, the bottom part at least partially forms the mouth. In this case, the area of the suction channel, on which the nose is arranged, projects beyond a part of the bottom part, so that the mouth area on the nose opposite side of the suction channel is at least partially formed by the bottom part.

Ferner ist das Bodenteil im Bereich der Mündung eben ausgebildet. Durch die ebene Ausbildung des Bodenteils ist der Abstand der Nase zu dem Bodenteil vorzugsweise gleichmäßig ausgebildet, so dass der Ölstrom gleichmäßig in den Saugkanal angesaugt werden kann, wodurch der Ölstrom wiederum mit einem konstanten Druck über die Querschnittsfläche des Saugkanals in den Saugkanal einströmen kann. Durch das gleichmäßige Einströmen wird eine nachteilige Strudelströmung des Ölstroms vermieden.Furthermore, the bottom part is flat in the region of the mouth. Due to the planar design of the bottom part, the distance of the nose to the bottom part is preferably uniform, so that the oil flow can be sucked evenly into the suction channel, whereby the oil flow in turn can flow with a constant pressure over the cross-sectional area of the suction channel into the suction channel. Due to the uniform inflow, an adverse vortex flow of the oil flow is avoided.

Die Erfindung betrifft ferner eine Brennkraftmaschine mit einem Kurbelwellengehäuse und eine mit dem Kurbelwellengehäuse verbundene Ölwanne, wobei die Ölwanne wie vorstehend beschrieben aus- und weitergebildet sein kann.The invention further relates to an internal combustion engine having a crankshaft housing and an oil pan connected to the crankshaft housing, wherein the oil pan can be trained and developed as described above.

Nachfolgend wird die Erfindung unter Bezugnahme auf die anliegenden Zeichnungen anhand eines bevorzugten Ausführungsbeispiels näher erläutert. Es zeigen:

Fig. 1
eine schematische perspektivische Ansicht einer erfindungsgemäßen Ölwanne und
Fig. 2
eine schematische Schnittansicht einer erfindungsgemäßen Ölwanne.
The invention will be explained in more detail with reference to the accompanying drawings with reference to a preferred embodiment. Show it:
Fig. 1
a schematic perspective view of an oil pan according to the invention and
Fig. 2
a schematic sectional view of an oil pan according to the invention.

Die in Fig. 1 gezeigte Ölwanne 10 für eine Brennkraftmaschine weist ein Bodenteil 12 zur Ausbildung eines Ölsumpfes und einen Saugkanal 14 zur Ansaugung von Öl auf, wobei der Saugkanal 14 über eine Mündung 16 in den Ölsumpf mündet. Im Ölsumpf des Bodenteils 12 der Ölwanne 10 befindet sich das Öl, welches für die Motorschmierung vorgesehen ist. Der Ölsumpf ist dabei vorzugsweise senkrecht zum Boden des Bodenteils 12 ausgebildet.In the Fig. 1 shown oil pan 10 for an internal combustion engine has a bottom part 12 for forming an oil sump and a suction channel 14 for the suction of oil, wherein the suction channel 14 opens via an orifice 16 into the oil sump. In the oil sump of the bottom part 12 of the oil pan 10 is the oil, which is provided for the engine lubrication. The oil sump is here preferably formed perpendicular to the bottom of the bottom part 12.

Der Saugkanal 14 ist vorzugsweise konusförmig ausgebildet, wobei der Durchmesser des Saugkanals 14 an der Mündung 16 einen geringeren Durchmesser aufweist als an der der Mündung 16 gegenüberliegenden Seite, an welcher eine Filtereinheit 18 angeordnet ist. Die Filtereinheit 18 kann beispielsweise aus einem Grobfilter bestehen, welcher vorwiegend größere Partikel aus dem zu befördernden Ölstrom siebt. Eine weitere Feinfilterung kann in einem, hier nicht dargstellten, zweiten Filter erfolgen, dessen Filterelemente vorzugsweise aus Papier oder aus Faserstofffüllungen bestehen können. Um den Saugkanal 14 an der der Mündung 16 gegenüberliegenden Seite abzudichten, ist ein Abdichtelement 20, beispielsweise ein Stopfen, vorgesehen. Der Saugkanal 14 weist vorzugsweise die Form eines geraden länglichen Rohres auf, wobei vorteilhafterweise in dem Saugkanal 14 keine die Strömung umlenkenden Elemente vorgesehen sind.The suction channel 14 is preferably cone-shaped, wherein the diameter of the suction channel 14 at the mouth 16 has a smaller diameter than at the mouth 16 opposite side, on which a filter unit 18 is arranged. The filter unit 18 can for example consist of a coarse filter which sieves predominantly larger particles from the oil flow to be conveyed. A further fine filtering can take place in a second filter (not shown here), the filter elements of which may preferably consist of paper or fibrous material fillings. In order to seal the suction channel 14 at the opposite side of the mouth 16, a sealing element 20, for example a plug, is provided. The suction channel 14 preferably has the shape of a straight elongated tube, wherein advantageously in the suction channel 14 no flow-deflecting elements are provided.

Wie in Fig. 2 dargestellt ist, weist der Saugkanal 14 im Bereich der Mündung 16 eine Nase 22 zur zumindest teilweisen Abdeckung des Saugkanalquerschnittes in horizontaler Strömungsrichtung auf. Die Nase 22 erstreckt sich über mindestens einen Teil der Querschnittsfläche des Saugkanals 14, wobei die Nase 22 vorzugsweise an der dem Bodenteil 12 gegenüberliegenden Seite des Saugkanals 14 angeordnet ist. Zwischen dem Bodenteil 12 und der Nase 22 ist ein Spalt ausgebildet, durch welchen das Öl vom Ölsumpf in Strömungsrichtung in den Saugkanal 14 strömen kann. Im Bereich der Mündung 16 ist der Saugkanal 14 an der Stelle, an der die Nase 22 angeordnet ist, vorzugsweise länger ausgestaltet als der der Nase 22 gegenüberliegende Bereich des Saugkanals 14, der an das Bodenteil 12 angrenzt, so dass der Teil des Saugkanals 14 mit der Nase 22 einen Teil des Bodenteils 12 überlappen kann. Das Bodenteil 12 kann hierbei zumindest teilweise die Mündung 16 ausbilden und ist vorzugsweise im Bereich der Mündung 16 eben ausgebildet. Die Nase 22 erstreckt sich geodätisch von oben nach unten in Richtung des Bodenteils 12, wobei die Nase 22 im Wesentlichen senkrecht zum Bodenteil 12 ausgebildet ist. Zwischen dem Bodenteil 12 und der Nase 22 ist ein Spalt ausgebildet, durch welchen eine definierte Menge eines Ölstroms aus dem Ölsumpf in Richtung des Saugkanals 14 strömen kann, wobei mit Hilfe der Nase 22 auf einfache Weise verhindert wird, dass Luft zusammen mit dem Öl in den Saugkanal 14 strömen kann.As in Fig. 2 is shown, the suction channel 14 in the region of the mouth 16 a nose 22 for at least partially covering the Saugkanalquerschnittes in the horizontal flow direction. The nose 22 extends over at least part of the cross-sectional area of the suction channel 14, the nose 22 preferably being arranged on the side of the suction channel 14 opposite the bottom part 12. Between the bottom part 12 and the nose 22, a gap is formed, through which the oil from the oil sump can flow in the flow direction in the suction channel 14. In the region of the mouth 16 of the suction channel 14 at the point at which the nose 22 is arranged, preferably designed to be longer than the nose 22 opposite region of the suction channel 14, which is adjacent to the bottom part 12, so that the part of the suction channel 14 with the nose 22 may overlap a portion of the bottom portion 12. The bottom part 12 may in this case at least partially the mouth 16 form and is preferably formed flat in the mouth 16. The nose 22 extends geodetically from top to bottom in the direction of the bottom part 12, wherein the nose 22 is formed substantially perpendicular to the bottom part 12. Between the bottom part 12 and the nose 22, a gap is formed, through which a defined amount of oil flow from the oil sump can flow in the direction of the suction channel 14, being prevented by means of the nose 22 in a simple manner that air together with the oil in can flow the suction channel 14.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

1010
Ölwanneoil pan
1212
Bodenteilthe bottom part
1414
Saugkanalsuction
1616
Mündungmuzzle
1818
Filtereinheitfilter unit
2020
Abdichtelementsealing
2222
Nasenose

Claims (7)

  1. An oil sump for an internal combustion engine, comprising a base part (12) for the formation of an oil sump and an suction channel (14) for the suction of oil, which flows via an orifice (16) into the oil sump, with the suction channel (14) having a protrusion (22) in the region of the orifice (16) for at least partly covering the cross-section of the suction channel in the horizontal direction of flow, characterized in that the protrusion (22) extends geodetically from top to bottom, and that the suction channel (14) is upwardly closed by the protrusion (22) in the orifice region and merely one narrow gap is formed in the orifice region of the suction channel (14), by means of which a disadvantageous vortex effect of the inflowing oil will be prevented.
  2. An oil sump according to claim 1, characterized in that the protrusion (22) is arranged substantially perpendicularly to the base part (12).
  3. An oil sump according to one of the claims 1 or 2, characterized in that the protrusion (22) is integrally connected to the suction channel (14).
  4. An oil sump according to one of the claims 1 to 3, characterized in that the suction channel (14) is connected at least partly in an integral manner to the base part (12).
  5. An oil sump according to one of the claims 1 to 4, characterized in that the base part (12) forms the orifice (16) at least in part.
  6. An oil sump according to claim 5, characterized in that the base part (12) is arranged in a flat manner in the region of the orifice (16).
  7. An internal combustion engine, comprising a crankcase and an oil sump (10) connected to the crankcase, with the oil sump (10) being arranged according to one of the claims 1 to 6.
EP08008653.1A 2007-05-18 2008-05-08 Oil tray Revoked EP1992796B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007023406A DE102007023406A1 (en) 2007-05-18 2007-05-18 oil pan

Publications (2)

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EP1992796A1 EP1992796A1 (en) 2008-11-19
EP1992796B1 true EP1992796B1 (en) 2013-07-03

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EP08008653.1A Revoked EP1992796B1 (en) 2007-05-18 2008-05-08 Oil tray

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US (1) US8011340B2 (en)
EP (1) EP1992796B1 (en)
KR (1) KR20080101673A (en)
CN (1) CN101307703B (en)
DE (1) DE102007023406A1 (en)

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US8151757B2 (en) * 2009-05-14 2012-04-10 Deere & Company Oil pan/axle support
JP4888746B2 (en) * 2009-09-30 2012-02-29 マツダ株式会社 Oil pan structure
DE102011104017A1 (en) * 2011-06-11 2012-12-13 Audi Ag Container for a service medium of a motor vehicle
JP6040555B2 (en) * 2012-04-04 2016-12-07 日産自動車株式会社 Internal combustion engine
US11078958B1 (en) 2020-08-24 2021-08-03 Apq Development, Llc Compression limiter
USD921045S1 (en) 2020-08-24 2021-06-01 Apq Development, Llc Oil pick-up assembly
US11028741B1 (en) 2020-08-24 2021-06-08 Apq Development, Llc Oil pick-up assembly
USD916152S1 (en) 2020-08-24 2021-04-13 Apq Development, Llc Compression limiter
EP4407150A1 (en) * 2023-01-24 2024-07-31 Schwäbische Hüttenwerke Automotive GmbH Oil sump, in particular oil filter module, with a multipart housing

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DE1183750B (en) * 1961-07-01 1964-12-17 Ceskoslovenske Zd Y Naftovych Arrangement of an oil filter
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DE10305184A1 (en) * 2003-02-08 2005-03-31 Zf Friedrichshafen Ag Inlet for suction pipe of oil pump is fitted with filter comprising section of wire hose which slopes towards its closed outward end
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JP4414329B2 (en) * 2004-12-27 2010-02-10 本田技研工業株式会社 Oil strainer support structure for engine

Also Published As

Publication number Publication date
US8011340B2 (en) 2011-09-06
KR20080101673A (en) 2008-11-21
CN101307703B (en) 2013-05-29
US20080283020A1 (en) 2008-11-20
DE102007023406A1 (en) 2008-11-20
CN101307703A (en) 2008-11-19
EP1992796A1 (en) 2008-11-19

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