EP1360400B1 - Oil collecting device for an internal combustion engine - Google Patents

Oil collecting device for an internal combustion engine Download PDF

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Publication number
EP1360400B1
EP1360400B1 EP02710035A EP02710035A EP1360400B1 EP 1360400 B1 EP1360400 B1 EP 1360400B1 EP 02710035 A EP02710035 A EP 02710035A EP 02710035 A EP02710035 A EP 02710035A EP 1360400 B1 EP1360400 B1 EP 1360400B1
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EP
European Patent Office
Prior art keywords
oil
collecting device
collecting
installation portion
combustion engine
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.)
Expired - Lifetime
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EP02710035A
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German (de)
French (fr)
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EP1360400A1 (en
Inventor
Manfred Batzill
Markus Huber
Thomas Fassl
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Dr Ing HCF Porsche AG
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Dr Ing HCF Porsche AG
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Publication of EP1360400A1 publication Critical patent/EP1360400A1/en
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    • 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
    • F01M2011/005—Oilsumps with special anti-turbulence means, e.g. anti-foaming means or intermediate plates

Definitions

  • the invention relates to an oil-collecting device for an internal combustion engine according to the features of the preamble of claim 1.
  • the object of the invention is to make an oil catcher for an internal combustion engine so that on the one hand a safe and fast oil return is ensured by the consumers to the oil sump and that on the other hand it is ensured that even at an angle of the engine backflow of the lubricating oil from the deeper space section in the crank chamber and / or in the shallower space section is prevented.
  • These two functions should be based on production technology simple manner and thus be integrated cost-effectively in the oil catcher.
  • the insert consists of an oil retaining edge and an oil bulkhead having central part and two side parts, in which oil return passages are integrated by the cylinder head.
  • the insert is advantageously made of plastic and thus contributes overall to a weight reduction of the internal combustion engine.
  • a plastic insert can be manufactured easily, e.g. by injection molding.
  • An oil-collecting housing 2 has a construction space section 4, which is referred to below as the first oil-collecting space, and in which the oil necessary for supplying the lubricating oil to the internal combustion engine accumulates.
  • the first oil collection chamber 4 an oil snorkel 6 is placed at its lowest point, which leads via a first ⁇ labsaug réelle 8 to the suction side of an oil pump 10.
  • a second space 12 is arranged, which is referred to below as the second oil collection space, and which is formed shallower than the first oil collection space 4.
  • an oil snorkel 14 is also disposed at its lowest point, which is connected via a second ⁇ labsaug effet 16 with a second suction side of the oil pump 10 designed as a double pump.
  • the insert 18 has a central part 20, which, as illustrated in particular in FIGS. 2 and 3, in the installed state, the two oil collecting spaces 4, 12 separated from each other.
  • the middle part 20 has a first, to the first oil collection chamber 4 oriented side wall 22 which is provided with a, a bulkhead for the lubricating oil forming curved wall portion 23.
  • a second, the two oil collecting chambers 4,12 severing side wall 24 engages in a arranged at the bottom of the oil collection chamber 12 and extending transversely to the longitudinal extent of the oil collection housing 2 retaining groove 48 a.
  • the lubricating oil is collected from the main bearings of the crankshaft and the lubricating oil from the spray nozzles, not shown, for the piston cooling and pumped back via the second ⁇ labsaug Ober 16 into the first oil collection chamber 14.
  • plastic insert 18 is screwed captive with the help of integrally formed on the central part 20 and on the two side parts 30 and 32 mounting tabs 50 in the oil drain housing 2.
  • a sealing surface 52 is provided, via which the insert 18 is sealed against the oil guide housing 2 with its two side parts 30 and 32.
  • the insert 18 is designed in particular on account of the formed as an oil barrier oil retaining edge 28 and the oil bulkhead 23 so that even when driving uphill of the motor vehicle of up to 45 ° prevents the lubricating oil from the first oil collection chamber 4 in the crankcase and / or in the second Oil collection chamber 12 can pass.
  • ⁇ labsaugtechnisch 16 ensures that regardless of the pitch of the vehicle, the lubricating oil from the second oil collection chamber 12 via the ⁇ labsaug réelle 16 and via an air separator 54 into the first oil collection chamber 4, from where it with the help of the first Pump stage is supplied to the consumers again. Both Pump stages are constantly in operation, is ensured by the air separator 54, that in particular when driving down or braking the vehicle from the second oil collection chamber 12 sucked air is deposited and thus does not get into the crankcase or to the consumers.

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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)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Description

Die Erfindung geht aus von einer Ölauffangvorrichtung für eine Brennkraftmaschine nach den Merkmalen des Oberbegriffs des Anspruchs 1.The invention relates to an oil-collecting device for an internal combustion engine according to the features of the preamble of claim 1.

Aus der US-PS 5 103 782 ist eine gattungsgemäße Ölauffangvorrichtung bekannt, bei der die Ölwanne bzw. das Ölauffanggehäuse der Brennkraftmaschine über die Längserstreckung des Kurbelgehäuses zwei unterschiedlich tief ausgebildete Bauraumabschnitte aufweist. Im tieferen, als Ölwanne ausgebildeten Bauraumabschnitt ist eine Ölabsaugung vorgesehen, mit der das Öl den Verbrauchern wieder zugeführt wird. Zur gezielten Rückführung des im flacheren Bauraumabschnitt befindlichen Öls sind entsprechende Ölleitrippen vorgesehen. Bei Steigfahrten, insbesondere bei, einem geländegängigen Kraftfahrzeug, besteht die Gefahr, dass das im tieferen Bauraumabschnitt befindliche Schmieröl über den flacheren Bauraumabschnitt wieder in das Kurbelgehäuse gelangt. Neben Panschverlusten besteht die Gefahr, dass im Bereich der Ölabsaugung nicht genügend Öl für die Ölversorgung zu den Verbrauchern zur Verfügung steht, bzw. dass Luft statt Öl angesaugt wird.From US-PS 5,103,782 a generic oil catcher is known in which the oil pan or the oil collection housing of the internal combustion engine over the longitudinal extent of the crankcase has two different depths formed space sections. In the deeper, designed as a sump construction space section an oil extraction is provided, with which the oil is supplied to the consumers again. For targeted return of the oil located in the shallower space section corresponding Ölleitrippen are provided. When climbing, especially in an all-terrain motor vehicle, there is a risk that the lubricating oil located in the lower installation space section will return to the crankcase via the shallower installation space section. In addition to splashing losses, there is a risk that not enough oil will be available for the oil supply to the consumers in the area of the oil extraction or that air will be sucked in instead of oil.

Es ist weiterhin bekannt (siehe Sonderdruck aus MTZ Motortechnische Zeitschrift 52, 1991, S. 9, 10), Schmieröl aus dem Zylinderkopf über in einem Ölwannenoberteil integrierte Öl- Rücklaufkanäle, die sich bis unterhalb des Ölspiegels erstrecken, in den Ölsumpf zurückzuleiten.It is also known (see reprint from MTZ Motortechnische Zeitschrift 52, 1991, p. 9, 10), lubricating oil from the cylinder head via integrated in an oil pan shell oil return channels that extend to below the oil level, to be fed back into the oil sump.

Aufgabe der Erfindung ist es, eine Ölauffangvorrichtung für eine Brennkraftmaschine so zu gestalten, dass einerseits eine sichere und schnelle Ölrückführung von den Verbrauchern zum Ölsumpf gewährleistet ist und dass andererseits sichergestellt ist, dass auch bei Schräglage der Brennkraftmaschine ein Zurückfließen des Schmieröls aus dem tieferen Bauraumabschnitt in den Kurbelraum und/oder in den flacheren Bauraumabschnitt verhindert wird. Diese beiden Funktionen sollen fertigungstechnisch auf einfache Art und Weise und damit auch kostengünstig in der Ölauffangvorrichtung integriert sein.The object of the invention is to make an oil catcher for an internal combustion engine so that on the one hand a safe and fast oil return is ensured by the consumers to the oil sump and that on the other hand it is ensured that even at an angle of the engine backflow of the lubricating oil from the deeper space section in the crank chamber and / or in the shallower space section is prevented. These two functions should be based on production technology simple manner and thus be integrated cost-effectively in the oil catcher.

Die Lösung der Aufgabe erfolgt durch die im Anspruch 1 angegebenen Merkmale. Das als separat zur Ölauffangvorrichtung ausgebildete Einlegeteil ist einerseits mit einer zwischen den beiden Bauraumabschnitten erforderlichen Ölbarriere ausgebildet und verfügt darüber hinaus über Ölrückführkanäle, über die das aus dem Zylinderkopf zurückfließende Öl auf direktem Weg bis unter den Ölspiegel des im tieferen Bauraumabschnitt befindlichen Schmieröls gelangt. Damit ist das Ölauffanggehäuse gusstechnisch einfach herstellbar, da die beiden vorbeschriebenen Funktionen im separat zum Ölauffanggehäuse ausgebildeten Einlegeteil umgesetzt sind.The solution of the problem is achieved by the features specified in claim 1. The insert formed as separate from the oil collecting device is formed on the one hand with an oil barrier between the two space sections and also has oil return passages over which passes the oil flowing back from the cylinder head on a direct path to below the oil level of the located in the lower space portion lubricating oil. Thus, the oil catcher housing is easy to produce by casting, since the two functions described above are implemented in the separately formed for oil collection housing insert.

In den Unteransprüchen sind weitere vorteilhafte Ausgestaltungen und Verbesserungen der erfindungsgemäßen Ölauffangvorrichtung enthalten. Das Einlegeteil besteht aus einem eine Ölhaltekante und eine Ölschottwand aufweisenden Mittelteil und zwei Seitenteilen, in denen Ölrückführkanäle vom Zylinderkopf integriert sind.In the subclaims further advantageous embodiments and improvements of the oil catcher according to the invention are included. The insert consists of an oil retaining edge and an oil bulkhead having central part and two side parts, in which oil return passages are integrated by the cylinder head.

Das Einlegeteil besteht in vorteilhafter Weise aus Kunststoff und trägt damit insgesamt zu einer Gewichtsreduzierung der Brennkraftmaschine bei. Darüber hinaus lässt sich ein derartiges Kunststoff-Einlegeteil fertigungstechnisch einfach, z.B. durch Spritzgießen, herstellen.The insert is advantageously made of plastic and thus contributes overall to a weight reduction of the internal combustion engine. In addition, such a plastic insert can be manufactured easily, e.g. by injection molding.

Ein Ausführungsbeispiel der Erfindung ist in der nachfolgenden Beschreibung und Zeichnung näher erläutert. Letztere zeigt in

Fig. 1
Eine erste Perspektivansicht einer Ölauffangvorrichtung,
Fig. 2
eine zweite Perspektivansicht einer Ölauffangvorrichtung,
Fig. 3
eine Draufsicht auf die Ölauffangvorrichtung,
Fig. 4
einen Schnitt entlang der Linie IV-IV in Fig. 3,
Fig. 5
einen Schnitt entlang der Linie V-V in Fig. 3,
Fig. 6
einen Schnitt entlang der Linie VI-VI in Fig. 3,
Fig. 7
einen Schnitt entlang der Linie VII-VII in Fig. 3 und
Fig. 8
eine in der Ölauffangvorrichtung eingesetzte zweistufige Ölpumpe.
An embodiment of the invention is explained in more detail in the following description and drawings. The latter shows in
Fig. 1
A first perspective view of an oil-collecting device,
Fig. 2
a second perspective view of an oil-collecting device,
Fig. 3
a top view of the oil catcher,
Fig. 4
a section along the line IV-IV in Fig. 3,
Fig. 5
a section along the line VV in Fig. 3,
Fig. 6
a section along the line VI-VI in Fig. 3,
Fig. 7
a section along the line VII-VII in Fig. 3 and
Fig. 8
a two-stage oil pump used in the oil catcher.

Beschreibung des AusführungsbeispielsDescription of the embodiment

Ein Ölauffanggehäuse 2 weist einen Bauraumabschnitt 4 auf, der im folgenden als erster Ölsammelraum bezeichnet wird, und in dem sich das für die Schmierölversorgung der Brennkraftmaschine notwendige Öl ansammelt. Im ersten Ölsammelraum 4 ist an seiner tiefsten Stelle ein Ölschnorchel 6 plaziert, der über eine erste Ölabsaugleitung 8 zu der Saugseite einer Ölpumpe 10 führt. Im Ölauffanggehäuse 2 ist ein zweiter Bauraum 12 angeordnet, der im folgenden als zweiter Ölsammelraum bezeichnet wird, und der gegenüber dem ersten Ölsammelraum 4 flacher ausgebildet ist. Im zweiten Ölsammelraum 12 ist an seiner tiefsten Stelle ebenfalls ein Ölschnorchel 14 angeordnet, der über eine zweite Ölabsaugleitung 16 mit einer zweiten Saugseite der als Doppelpumpe ausgebildeten Ölpumpe 10 verbunden ist.An oil-collecting housing 2 has a construction space section 4, which is referred to below as the first oil-collecting space, and in which the oil necessary for supplying the lubricating oil to the internal combustion engine accumulates. In the first oil collection chamber 4, an oil snorkel 6 is placed at its lowest point, which leads via a first Ölabsaugleitung 8 to the suction side of an oil pump 10. In the oil flow housing 2, a second space 12 is arranged, which is referred to below as the second oil collection space, and which is formed shallower than the first oil collection space 4. In the second oil collection chamber 12, an oil snorkel 14 is also disposed at its lowest point, which is connected via a second Ölabsaugleitung 16 with a second suction side of the oil pump 10 designed as a double pump.

In das Ölauffanggehäuse 2 ist ein Kunststoff-Einlegeteil 18 eingesetzt, dessen Aufbau im folgenden näher beschrieben wird. Das Einlegeteil 18 weist ein Mittelteil 20 auf, das, wie insbesondere Fig. 2 und 3 verdeutlicht, im eingebauten Zustand die beiden Ölsammelräume 4, 12 voneinander abtrennt. Dabei weist das Mittelteil 20 eine erste, zum ersten Ölsammelraum 4 hin ausgerichtete Seitenwand 22 auf, die mit einem, eine Schottwand für das Schmieröl bildenden gekrümmten Wandabschnitt 23 versehen ist. Eine zweite, die beiden Ölsammelräume 4,12 abtrennende Seitenwand 24 greift in eine am Boden des Ölsammelraumes 12 angeordnete und quer zur Längserstreckung des Ölauffanggehäuses 2 verlaufende Haltenut 48 ein. Diese Nut - Feder - Verbindung wird noch zusätzlich durch Silikon oder Weichschaum abgedichtet, da verhindert werden soll, dass bei einer Schräglage des Kraftfahrzeuges Schmieröl aus dem ersten Ölsammelraum 4 in den zweiten Ölsammelraum 12 gelangt. Dagegen ist die erste Seitenwand 22 des Einlegeteils 18 so ausgebildet, dass das Schmieröl insbesondere bei Schräglage des Motors aus dem ersten Ölsammelraum 4 unter das Mittelteil 20 fließen kann. Damit wird dieser Raumabschnitt auch zur Aufnahme des für eine zuverlässige Schmierölversorgung erforderlichen Ölvolumens genutzt.In the oil trap housing 2, a plastic insert 18 is used, the structure will be described in more detail below. The insert 18 has a central part 20, which, as illustrated in particular in FIGS. 2 and 3, in the installed state, the two oil collecting spaces 4, 12 separated from each other. Here, the middle part 20 has a first, to the first oil collection chamber 4 oriented side wall 22 which is provided with a, a bulkhead for the lubricating oil forming curved wall portion 23. A second, the two oil collecting chambers 4,12 severing side wall 24 engages in a arranged at the bottom of the oil collection chamber 12 and extending transversely to the longitudinal extent of the oil collection housing 2 retaining groove 48 a. This tongue and groove connection is additionally sealed by silicone or soft foam, since it is intended to prevent lubricating oil from the first oil collecting space when the vehicle is inclined 4 passes into the second oil collection chamber 12. In contrast, the first side wall 22 of the insert 18 is formed so that the lubricating oil can flow from the first oil collection chamber 4 below the central part 20, in particular when the engine is inclined. Thus, this space section is also used to hold the oil volume required for a reliable lubricating oil supply.

Eine Deckwand 26 des Mittelteils 20 ist zur Mitte (siehe Schnittlinie IV - IV in Fig. 3) des Ölauffanggehäuses 2 hin abgesenkt und besteht aus zwei abgesenkten Teilflächen 26a und 26b, die in der Mitte in eine gerade Teilfläche 26c übergehen. Die zum ersten Ölsammelraum 4 hin ausgerichtete Seitenkante 28 der Deckwand 26, im folgenden als Ölhaltekante bezeichnet, dient als Ölbarriere, die bei Bergfahrten des Fahrzeuges verhindert, dass das Schmieröl vom ersten Ölsammelraum 4 in den zweiten Ölsammelraum 12 übertritt. Wie aus Fig. 8 ersichtlich, verläuft oberhalb der zentral ausgerichteten geraden Teilfläche 26c die zum zweiten Ölsammelraum 12 führende zweite Ölabsaugleitung 16.A top wall 26 of the central part 20 is lowered towards the center (see section line IV - IV in Fig. 3) of the oil collection housing 2 and consists of two lowered partial surfaces 26a and 26b, which merge in the middle in a straight part surface 26c. The side edge 28 of the top wall 26 oriented toward the first oil collection chamber 4, hereinafter referred to as the oil retaining edge, serves as an oil barrier which prevents the oil from traveling from the first oil collection chamber 4 into the second oil collection chamber 12 when the vehicle is traveling uphill. As can be seen from FIG. 8, the second oil suction line 16, which leads to the second oil collecting space 12, extends above the centrally aligned straight partial surface 26c.

An das Mittelteil 20 sind zwei Seitenteile 30 und 32 angeformt, in denen ein Teil der vom Zylinderkopf zum ersten Ölsammelraum 4 führenden Ölrücklaufkanäle integriert sind. Dazu weisen die beiden Seitenteile 30 und 32 Ölrücklauföffnungen 34 auf, die von Dichtringen 36 umschlossen sind. Das im Ausführungsbeispiel mit fünf Ölrücklauföffnungen 34 versehene Seitenteil 32 erstreckt sich über die gesamte Länge des Ölaufifanggehäuses 2, während sich das im Ausführungsbeispiel mit vier Ölrücklauföffnungen 34 versehene Seitenteil 30 vom zweiten Ölsammelraum 12 bis zum Anfang des ersten Ölsammelraums 4 erstreckt. Die in den beiden Seitenteilen 30 und 32 angeordneten Ölrücklauföffnungen 34 münden in jeweils einen Ölsammelkanal 38 und 40 ein, die an ihren unteren Enden mit jeweils einer Ölablauföffnung 42 und 44 versehen sind. Die beiden Ölsammelkanäle 38 und 40 sind bis auf die Ölrücklauföffnungen 34 zum Kurbelgehäuse hin (nicht dargestellt) durch Deckelelemente 46 abgeschlossen, die z.B. durch Vibrationsschweißen an den Seitenteilen 30, 32 befestigt sind. Bei der Verschraubung des Ölauffanggehäuses 2 an einem nicht dargestellten Kurbelgehäuseunterteil sitzen die auf der Flanschfläche des Kurbelgehäuseunterteils korrespondierend zu den Ölrücklauföffnungen 34 eingebrachten Bohrungen dichtend mit ihren Bohrungsrändern auf den Dichtringen 36 auf. Durch die im Kurbelgehäuse integrierten Ölrücklaufkanäle und die bis unter den Ölspiegel des im ersten Ölsammelraums 4 befindlichen Schmieröls reichenden Ölsammelkanäle 38 und 40 wird sichergestellt, dass das Schmieröl von den Verbrauchern trotz der durch die Kurbelwellen- und Kolbenbewegungen verursachten Druckpulsationen schnell in den ersten Ölsammelraum 4 zurück gelangt. Im zweiten Ölsammelraum 12 wird das Schmieröl von den Hauptlagern der Kurbelwelle und das Schmieröl aus den nicht dargestellten Spritzdüsen für die Kolbenkühlung aufgefangen und über die zweite Ölabsaugleitung 16 in den ersten Ölsammelraum 14 zurück gepumpt.Two side parts 30 and 32 are integrally formed on the middle part 20, in which part of the oil return channels leading from the cylinder head to the first oil collection chamber 4 are integrated. For this purpose, the two side parts 30 and 32 have oil return openings 34, which are enclosed by sealing rings 36. The side member 32 provided in the embodiment with five oil return openings 34 extends over the entire length of the oil collection housing 2, while in the embodiment provided with four oil return openings 34 side member 30 extends from the second oil collection chamber 12 to the beginning of the first oil collection chamber 4. The arranged in the two side parts 30 and 32 oil return openings 34 open into a respective oil collection channel 38 and 40, which are provided at their lower ends, each with an oil drain opening 42 and 44. The two oil collection channels 38 and 40 are closed (except for the oil return openings 34) to the crankcase by cover elements 46, which are fastened to the side parts 30, 32 by vibration welding, for example. In the Screwing the oil collection housing 2 to a crankcase lower part, not shown, sitting on the flange of the crankcase lower part corresponding to the oil return holes 34 introduced holes sealingly with their bore edges on the sealing rings 36. By integrated in the crankcase oil return passages and reaching to below the oil level of the first oil collection chamber 4 oil collection channels 38 and 40 ensures that the lubricating oil from consumers despite the caused by the crankshaft and piston movements pressure pulsations quickly back into the first oil collection chamber 4 arrives. In the second oil collection chamber 12, the lubricating oil is collected from the main bearings of the crankshaft and the lubricating oil from the spray nozzles, not shown, for the piston cooling and pumped back via the second Ölabsaugleitung 16 into the first oil collection chamber 14.

Das durch den Eingriff der Seitenwand 24 in die Haltenut 48 fixierte Kunststoff-Einlegeteil 18 wird mit Hilfe von am Mittelteil 20 und an den beiden Seitenteilen 30 und 32 angeformten Befestigungslaschen 50 im Ölauffanggehäuse 2 verliersicher verschraubt. An den beiden Längsseiten des Ölauffanggehäuses 2 ist eine Dichtfläche 52 vorgesehen, über die das Einlegeteil 18 gegenüber dem Ölführungsgehäuse 2 mit seinen beiden Seitenteilen 30 und 32 abgedichtet wird.The fixed by the engagement of the side wall 24 in the retaining groove 48 plastic insert 18 is screwed captive with the help of integrally formed on the central part 20 and on the two side parts 30 and 32 mounting tabs 50 in the oil drain housing 2. On the two longitudinal sides of the oil collecting housing 2, a sealing surface 52 is provided, via which the insert 18 is sealed against the oil guide housing 2 with its two side parts 30 and 32.

Das Einlegeteil 18 ist insbesondere aufgrund der als Ölbarriere ausgebildeten Ölhaltekante 28 und der Ölschottwand 23 so ausgelegt, dass auch bei Steigungsfahrten des Kraftfahrzeugs von bis zu 45° verhindert wird, dass das Schmieröl aus dem ersten Ölsammelraum 4 in den Kurbelraum und/oder in den zweiten Ölsammelraum 12 übertreten kann. Durch die im zweiten Ölsammelraum 12 angeordnete Ölabsaugleitung 16 wird sichergestellt, dass unabhängig von der Steigungslage des Fahrzeugs das Schmieröl aus dem zweiten Ölsammelraum 12 über die Ölabsaugleitung 16 und über einen Luftabscheider 54 in den ersten Ölsammelraum 4 gelangt, von wo es aus mit Hilfe der ersten Pumpenstufe den Verbrauchern wieder zugeführt wird. Da beide Pumpenstufen ständig in Betrieb sind, wird durch den Luftabscheider 54 sichergestellt, dass die insbesondere bei Abwärtsfahrten oder beim Bremsen des Kraftfahrzeugs aus dem zweiten Ölsammelraum 12 angesaugte Luft abgeschieden wird und damit nicht in das Kurbelgehäuse bzw. zu den Verbrauchern gelangt.The insert 18 is designed in particular on account of the formed as an oil barrier oil retaining edge 28 and the oil bulkhead 23 so that even when driving uphill of the motor vehicle of up to 45 ° prevents the lubricating oil from the first oil collection chamber 4 in the crankcase and / or in the second Oil collection chamber 12 can pass. By arranged in the second oil collection chamber 12 Ölabsaugleitung 16 ensures that regardless of the pitch of the vehicle, the lubricating oil from the second oil collection chamber 12 via the Ölabsaugleitung 16 and via an air separator 54 into the first oil collection chamber 4, from where it with the help of the first Pump stage is supplied to the consumers again. Both Pump stages are constantly in operation, is ensured by the air separator 54, that in particular when driving down or braking the vehicle from the second oil collection chamber 12 sucked air is deposited and thus does not get into the crankcase or to the consumers.

Claims (5)

  1. An oil-collecting device for an internal-combustion engine, with an oil-collecting housing which is arranged underneath a crankcase and has at least two portions with different installation depths, wherein, in a deeper installation portion, an oil suction line is provided, via which the lubricating oil is fed by a pump to the consuming devices, characterised in that a separate insert (18) is fixed in the oil-collecting housing (2) and on the one hand has an oil barrier (22, 28), which is orientated substantially transversely to the longitudinal extent of the oil-collecting housing (2) and prevents reflux of the lubricating oil from the deeper installation portion (4) into the crankcase and/or into the shallower installation portion (12) when the internal-combustion engine is in an inclined position, and on the other hand has oil return ducts (34, 38, 40) for the lubricating oil flowing back from the cylinder head.
  2. An oil-collecting device according to claim 1, characterised in that the insert (18) comprises a middle part (20), which separates the two installation portions (4, 12) and has an oil-retaining edge (28), and two side parts (30, 32) accommodating the oil return ducts (34, 38, 40).
  3. An oil-collecting device according to claim 2, characterised in that the two side parts (30, 32) have oil return openings (34) which each lead into a collecting duct (38, 40) extending into the deeper installation portion (12).
  4. An oil-collecting device according to any one of the preceding claims, characterised in that the insert (18) comprises plastics and is screwed into the oil-collecting housing (2).
  5. An oil-collecting device according to any one of claims 2 to 4, characterised in that a retaining groove (48), in which a side wall (24) of the middle part (20) engages, is provided in the shallower installation portion (4).
EP02710035A 2001-02-07 2002-01-25 Oil collecting device for an internal combustion engine Expired - Lifetime EP1360400B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10105435A DE10105435A1 (en) 2001-02-07 2001-02-07 Oil collecting device for an internal combustion engine
DE10105435 2001-02-07
PCT/EP2002/000790 WO2002063144A1 (en) 2001-02-07 2002-01-25 Oil collecting device for an internal combustion engine

Publications (2)

Publication Number Publication Date
EP1360400A1 EP1360400A1 (en) 2003-11-12
EP1360400B1 true EP1360400B1 (en) 2007-04-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP02710035A Expired - Lifetime EP1360400B1 (en) 2001-02-07 2002-01-25 Oil collecting device for an internal combustion engine

Country Status (5)

Country Link
US (1) US7093578B2 (en)
EP (1) EP1360400B1 (en)
JP (1) JP2004518069A (en)
DE (2) DE10105435A1 (en)
WO (1) WO2002063144A1 (en)

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DE102019107507A1 (en) * 2019-03-25 2020-10-01 Bayerische Motoren Werke Aktiengesellschaft Reciprocating engine for a motor vehicle
DE102013220436B4 (en) 2012-10-18 2021-08-05 GM Global Technology Operations, LLC (n.d. Ges. d. Staates Delaware) Oil pan for an internal combustion engine

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Publication number Priority date Publication date Assignee Title
DE102013220436B4 (en) 2012-10-18 2021-08-05 GM Global Technology Operations, LLC (n.d. Ges. d. Staates Delaware) Oil pan for an internal combustion engine
DE102019107507A1 (en) * 2019-03-25 2020-10-01 Bayerische Motoren Werke Aktiengesellschaft Reciprocating engine for a motor vehicle

Also Published As

Publication number Publication date
JP2004518069A (en) 2004-06-17
EP1360400A1 (en) 2003-11-12
DE50209915D1 (en) 2007-05-24
US20040079318A1 (en) 2004-04-29
WO2002063144A1 (en) 2002-08-15
US7093578B2 (en) 2006-08-22
DE10105435A1 (en) 2002-08-29

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