EP4058660A1 - Oil sump with integrated shielding of the oil located in the oil sump from a pinion - Google Patents

Oil sump with integrated shielding of the oil located in the oil sump from a pinion

Info

Publication number
EP4058660A1
EP4058660A1 EP20793669.1A EP20793669A EP4058660A1 EP 4058660 A1 EP4058660 A1 EP 4058660A1 EP 20793669 A EP20793669 A EP 20793669A EP 4058660 A1 EP4058660 A1 EP 4058660A1
Authority
EP
European Patent Office
Prior art keywords
oil
oil pan
pinion
volume
partition
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP20793669.1A
Other languages
German (de)
French (fr)
Other versions
EP4058660B1 (en
Inventor
Lutz Kilian Cloos
Stephan BORG
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.)
Stellantis Auto SAS
Original Assignee
PSA Automobiles SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by PSA Automobiles SA filed Critical PSA Automobiles SA
Publication of EP4058660A1 publication Critical patent/EP4058660A1/en
Application granted granted Critical
Publication of EP4058660B1 publication Critical patent/EP4058660B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F01M1/00—Pressure lubrication
    • F01M1/02—Pressure lubrication using lubricating pumps
    • 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
    • F01M1/00—Pressure lubrication
    • F01M1/02—Pressure lubrication using lubricating pumps
    • F01M2001/0284—Pressure lubrication using lubricating pumps mounting of the pump
    • 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
    • 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

Definitions

  • the disclosure relates to an oil pan.
  • the disclosure relates to an oil pan with an integrated shielding of the oil located in the oil pan from an oil pump or movable elements of the oil pump.
  • the US patent US 9,376,942 B2 relates to a baffle structure in an oil pan.
  • the baffle plate is used to separate an interior of the oil pan into a crankcase side and an oil chamber side.
  • An oil guide element is also provided.
  • the oil guide element comprises an inlet section and a parallel section.
  • the inlet portion extends to a bottom surface of the oil pan.
  • the inlet section has an inlet port for lubricant at a lower part of the inlet section.
  • the parallel portion extends from the inlet portion in a direction substantially parallel to the baffle to introduce the lubricant from the inlet portion to the oil pump.
  • the baffle plate has an opening that corresponds to the parallel section of the screen.
  • the parallel section of the oil guide element is arranged in such a way that it closes the opening in the baffle plate.
  • At least one disadvantage of existing oil pans can be seen in the fact that oil can be foamed by a drive pinion of the oil pump. Foamed oil can lead to the failure of individual components of the internal combustion engine.
  • an oil pan of an internal combustion engine in particular for a motor vehicle, is designed to accommodate an oil pump, the oil pump being driven by a pinion, the pinion being arranged at least partially below an oil surface of an oil pan volume within a pinion volume in an installation position of the internal combustion engine in the motor vehicle is which by a partition is separated from the oil pan volume, so that engine oil whirled up by the pinion does not lead to foaming of engine oil which is located in the oil pan volume .
  • Engine oil collects in the oil pan.
  • the engine oil is used for lubrication and for heat transport within the internal combustion engine and is pumped through elements of the internal combustion engine by the oil pump.
  • the elements include coolers, heaters, filters, a camshaft, a camshaft adjustment unit (Camphaser), a crankshaft and the like.
  • the pinion is often driven by a chain.
  • the pinion generates entropy in the engine oil due to its rotation.
  • the pinion volume refers to a space in which the pinion can rotate freely. When the teeth of the pinion hit the oil surface, it is foamed. The foamed oil does not get into the oil pan volume due to the partition wall. In this way, for example, an oil can also be used which has at least a reduced proportion of potentially environmentally harmful additives to avoid foam formation.
  • At least a part of the partition is integrally formed on the oil pan.
  • the partition wall continues in a shielding plate arranged on the oil pump.
  • the partition wall thus extends as far as a shielding plate which is connected to the oil pump or can be connected to it.
  • At least the shielding plate is pot-shaped and has a flange area on the outside circumference, with which the shielding plate can be connected to the oil pump.
  • the pinion is therefore largely separated from the oil pan volume.
  • the partition wall in its installation position mounted with the oil pump has two openings through which two strands of a drive of the pinion can be guided.
  • the pinions are mostly driven by chain drives or the like.
  • the strands of the drive run through said openings. This allows necessary Connections between the oil pan volume and the pinion volume are restricted to a minimum, especially since the openings are above the oil surface in the ready-to-use installation position when the oil fill quantity is in accordance with the regulations.
  • the partition wall extends from a geodetically underneath base area of the oil pan.
  • the pinion volume is partially separated from the rest of the oil volume of the oil pan, at least on an underside.
  • the partition wall can be manufactured in one piece with the oil pan in a primary molding process (die casting or sand casting process).
  • the partition accommodating the pinion, ends flush with an inner wall arranged around the base area.
  • the pinion volume is partially separated from the rest of the oil volume of the oil pan, at least on the lateral outsides.
  • the partition has a recess in the area of an oil drain opening arranged in the oil pan.
  • engine oil can gelan conditions from the pinion volume into the oil pan volume and vice versa.
  • the recess serves to ensure that the pinion volume can run completely empty when the engine oil is drained during an oil change.
  • the recess is located centrally above the oil drain opening when viewed in a vertical axis Z of the vehicle.
  • an oil drain plug which is inserted into the oil drain opening, can penetrate into the recess and close it as far as possible.
  • a certain fluid exchange between tween the pinion volume and the oil pan volume is quite desirable so that the oil in the pinion volume ages to the same extent as the other motor oil in the internal combustion engine and so that it is regularly filtered and cooled.
  • oil should completely run out of the oil pan and the pinion volume when the oil is changed. Due to the arrangement of the oil drain screw below the partition, both volumes run empty when the oil drain screw is opened.
  • an oil pump which has a drive pinion which drives a delivery unit arranged in the oil pump, the pinion being designed to accommodate a pinion volume partially enclosed by a partition.
  • Fig. 4 the oil pump without the oil pan with the partition, which is connected on the drive side with a housing of the oil pump.
  • FIG. 1 shows an oil pan 1 of an otherwise not shown internal combustion engine, in particular special for a motor vehicle, also not shown.
  • the oil pan 1 is designed to accommodate an oil pump 2.
  • the oil pump 2 is ben by an only indicated pinion 3 is driven.
  • the pinion 3 is in a suitable installation position of the internal combustion engine in the motor vehicle at least partially below an oil surface 4 of an oil pan volume 5.
  • the pinion 3 is at least in the area below the oil surface 4 within a pinion volume 6.
  • the pinion volume 6 is spatially through a Partition wall 7 separated from the oil pan volume 5.
  • the pinion 3 can be driven by a chain drive, not shown. It whirls up the engine oil. Because of the partition wall 7, the engine oil whirled up and foamed by the pinion 3 cannot get into the rest of the oil pan volume 5. Without the partition 7, the engine oil which is located in the oil pan volume 5 could foam up.
  • FIG. 2 shows the oil pan 1 according to Figure 1 without the oil pump. It can be seen that at least part of the partition 7 is integrally formed on the oil pan 1.
  • the oil pan 1 is a part produced in a casting process, which is to be produced as far as possible without encapsulated cores.
  • the oil pan 1 should be demoldable from the casting tool. With demouldable is meant that the oil pan 1 can be removed from a cast core, not shown, after the casting process.
  • the partition wall 7 with rounded chamfers 14 extends orthogonally from a base surface 11 of the oil pan 1.
  • the chamfers 14 correspond to permissible casting radii.
  • the partition 7 has corresponding rounded chamfers 12 and easily demolded, slightly inclined walls 13.
  • the partition 7 extends in one piece from an inner side 10 of an outer wall 17 of the oil pan 1.
  • the bevels 14 between the partition 7 and the inside 10 are provided with castable or demoldable radii.
  • the partition 7 has a recess 15 in the area of the oil drain opening 9 arranged in the oil pan 1 for draining and renewing the engine oil.
  • the recess 15 is located in a vehicle vertical axis Z, viewed in the middle, exactly above the oil drain opening 9.
  • FIG. 3 it can be seen that the partition wall continues in a shielding plate 16 arranged on the oil pump 2. Accordingly, the shielding plate 16 has, on its side facing the partition 7, an edge 22 that is flush with the partition 7.
  • the shielding plate 16 is pot-shaped.
  • the outer circumference of the shielding plate 16 has a flange area 18 with which the shielding plate 16 can be connected to the oil pump 2.
  • the shielding plate 16 has two openings in its installation position mounted with the oil pump 2, through which two strands of a drive of the pinion 3 can be guided.
  • the drive is usually formed by a chain.

Landscapes

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

Abstract

An oil sump (1) of an internal combustion engine, in particular for a vehicle, is disclosed, configured for receiving an oil pump (2), wherein the oil pump (2) is driven by way of a pinion (3), wherein, in a position ready for use of the internal combustion engine in the motor vehicle, the pinion is arranged at least partially below an oil surface (4) of an oil sump volume (5) within a pinion volume (6) which is separated from the oil sump volume (5) by way of a dividing wall (7), with the result that engine oil which is swirled up by the pinion (3) does not lead to foaming of engine oil which is located in the oil sump volume (5).

Description

ÖLWANNE MIT EINER INTEGRIERTEN ABSÖHIRMUNG DES IN DER ÖLWANNE BEFINDLIGHEN ÖLS VON EINEM RITZEL OIL PAN WITH INTEGRATED SEALING OF THE OIL IN THE OIL PAN FROM A PINION

Beschreibung description

Die Offenbarung betrifft eine Ölwanne. Insbesondere betrifft die Offenbarung eine Ölwanne mit einer integrierten Abschirmung des in der Ölwanne befindlichen Öls von einer Ölpumpe bzw. beweglichen Elementen der Ölpumpe. The disclosure relates to an oil pan. In particular, the disclosure relates to an oil pan with an integrated shielding of the oil located in the oil pan from an oil pump or movable elements of the oil pump.

Technisches Gebiet Technical area

Das US Patent US 9,376,942 B2 betrifft eine Prallplattenstruktur in einer Ölwanne. Die Prallplatte dient zum Trennen eines Innenraums der Ölwanne in eine Kurbelgehäuseseite und eine Ölkammerseite. Ferner ist ein Ölleitelement vorgesehen. Das Ölleitelement umfasst einen Einlassabschnitt und einen parallelen Abschnitt. Der Einlassabschnitt erstreckt sich zu einer Bodenfläche der Ölwanne. Der Einlassabschnitt hat eine Einlassöffnung für Schmiermittel an einem unteren Teil des Einlassabschnitts. Der parallele Abschnitt erstreckt sich von dem Einlassabschnitt in einer Richtung, die im Wesentlichen parallel zu der Prallplatte ist, um das Schmiermittel von dem Einlassabschnitt zu der Ölpumpe einzuführen. Die Prallplatte hat eine Öffnung, die dem parallelen Abschnitt des Siebs entspricht. Der parallele Abschnitt des Ölleitelements ist so angeordnet, dass er die Öffnung in der Prallplatte verschließt. The US patent US 9,376,942 B2 relates to a baffle structure in an oil pan. The baffle plate is used to separate an interior of the oil pan into a crankcase side and an oil chamber side. An oil guide element is also provided. The oil guide element comprises an inlet section and a parallel section. The inlet portion extends to a bottom surface of the oil pan. The inlet section has an inlet port for lubricant at a lower part of the inlet section. The parallel portion extends from the inlet portion in a direction substantially parallel to the baffle to introduce the lubricant from the inlet portion to the oil pump. The baffle plate has an opening that corresponds to the parallel section of the screen. The parallel section of the oil guide element is arranged in such a way that it closes the opening in the baffle plate.

Zusammenfassung der Offenbarung Summary of the revelation

Zumindest ein Nachteil bestehender Ölwannen kann darin gesehen werden, dass Öl durch ein Antriebsritzel der Ölpumpe aufgeschäumt werden kann. Aufgeschäumtes Öl kann zum Versagen einzelner Komponenten des Verbrennungsmotors führen. At least one disadvantage of existing oil pans can be seen in the fact that oil can be foamed by a drive pinion of the oil pump. Foamed oil can lead to the failure of individual components of the internal combustion engine.

Der Nachteil wird durch den unabhängigen Anspruch abgestellt. Die Unteransprüche bilden vorteilhafte Weiterbildungen der Offenbarung aus. Die Unteransprüche können in technologisch sinnvoller Weise miteinander kombiniert werden. Die Beschreibung, insbesondere im Zusammenhang mit den Figuren, charakterisiert und spezifiziert die Offenbarung zusätzlich. The disadvantage is eliminated by the independent claim. The subclaims form advantageous developments of the disclosure. The subclaims can be combined with one another in a technologically meaningful way. The description, in particular in connection with the figures, additionally characterizes and specifies the disclosure.

Vorgesehen ist demgemäß eine Ölwanne eines Verbrennungsmotors, insbesondere für ein Kraftfahrzeug, ausgestaltet zur Aufnahme einer Ölpumpe, wobei die Ölpumpe durch ein Ritzel angetrieben wird, wobei das Ritzel in einer verwendungsgemäßen Einbaulage des Verbrennungsmotors im Kraftfahrzeug zumindest teilweise unterhalb einer Öloberfläche eines Ölwannenvolumens innerhalb eines Ritzelvolumens angeordnet ist, welches durch eine Trennwand von dem Ölwannenvolumen getrennt ist, so dass von dem Ritzel aufgewirbeltes Motoröl nicht zu einem Aufschäumen von Motoröl führt, welches sich in dem Ölwannenvolumen befindet.. Accordingly, an oil pan of an internal combustion engine, in particular for a motor vehicle, is designed to accommodate an oil pump, the oil pump being driven by a pinion, the pinion being arranged at least partially below an oil surface of an oil pan volume within a pinion volume in an installation position of the internal combustion engine in the motor vehicle is which by a partition is separated from the oil pan volume, so that engine oil whirled up by the pinion does not lead to foaming of engine oil which is located in the oil pan volume ..

In der Ölwanne sammelt sich Motoröl. Das Motoröl wird zur Schmierung und für einen Wärmetransport innerhalb des Verbrennungsmotors verwendet und von der Ölpumpe durch Elemente des Verbrennungsmotors gepumpt. Zu den Elementen gehören Kühler, Heizungen, Filter, eine Nockenwelle, einen Nockenwellen-Verstelleinheit (Camphaser), eine Kurbelwelle und dergleichen. Das Ritzel wird häufig von einer Kette angetrieben. Das Ritzel erzeugt in dem Motoröl bedingt durch seine Rotation Entropie. Das Ritzelvolumen bezieht sich auf einen Raum, in dem das Ritzel frei rotieren kann. Durch ein Aufschlagen der Zähne des Ritzels auf der Öloberfläche wird dieses aufgeschäumt. Das aufgeschäumte Öl gelangt aufgrund der Trennwand nicht in das Ölwannenvolumen. Dadurch kann beispielsweise auch ein Öl verwendet werden, welches zumindest einen verringerten Anteil an potentiell umweltschädlichen Additiven zur Vermeidung von Schaumbildung aufweist. Engine oil collects in the oil pan. The engine oil is used for lubrication and for heat transport within the internal combustion engine and is pumped through elements of the internal combustion engine by the oil pump. The elements include coolers, heaters, filters, a camshaft, a camshaft adjustment unit (Camphaser), a crankshaft and the like. The pinion is often driven by a chain. The pinion generates entropy in the engine oil due to its rotation. The pinion volume refers to a space in which the pinion can rotate freely. When the teeth of the pinion hit the oil surface, it is foamed. The foamed oil does not get into the oil pan volume due to the partition wall. In this way, for example, an oil can also be used which has at least a reduced proportion of potentially environmentally harmful additives to avoid foam formation.

In einer Ausgestaltung ist zumindest ein Teil der Trennwand einstückig an der Ölwanne angeformt. In one embodiment, at least a part of the partition is integrally formed on the oil pan.

Dadurch wird eine kostengünstige Trennwand bereitgestellt. Zusätzliche Bauteile sind gegebenenfalls nicht erforderlich. This provides an inexpensive partition wall. Additional components may not be required.

In einer Ausgestaltung setzt sich die Trennwand in einem an der Ölpumpe angeordneten Abschirmblech fort. In one embodiment, the partition wall continues in a shielding plate arranged on the oil pump.

Bei dieser Ausgestaltung erstreckt sich somit die Trennwand bis zu einem Abschirmblech, das mit der Ölpumpe verbunden ist oder mit dieser verbindbar ist. In this embodiment, the partition wall thus extends as far as a shielding plate which is connected to the oil pump or can be connected to it.

Entsprechend einer Ausgestaltung ist zumindest das Abschirmblech topfförmig ausgestaltet und weist außenumfänglich einen Flanschbereich auf, mit welchem das Abschirmblech mit der Ölpumpe verbunden werden kann. According to one embodiment, at least the shielding plate is pot-shaped and has a flange area on the outside circumference, with which the shielding plate can be connected to the oil pump.

Das Ritzel wird demnach weitestgehend von dem Ölwannenvolumen getrennt. The pinion is therefore largely separated from the oil pan volume.

In einer Ausgestaltung weist die Trennwand in ihrer mit der Ölpumpe montierten Einbaulage zwei Öffnungen auf, durch welche zwei Stränge eines Antriebs des Ritzels geführt werden können. In one embodiment, the partition wall in its installation position mounted with the oil pump has two openings through which two strands of a drive of the pinion can be guided.

Wie gesagt werden die Ritzel zumeist über Kettenantriebe oder Ähnliches angetrieben. Die Stränge des Antriebs verlaufen durch die besagten Öffnungen. Dadurch können notwendige Verbindungen zwischen dem Ölwannenvolumen und dem Ritzelvolumen auf ein Minimum be schränkt werden, zumal in der betriebsbereiten Einbaulage bei vorschriftsmäßiger Öleinfüll menge die Öffnungen oberhalb von der Öloberfläche liegen. As I said, the pinions are mostly driven by chain drives or the like. The strands of the drive run through said openings. This allows necessary Connections between the oil pan volume and the pinion volume are restricted to a minimum, especially since the openings are above the oil surface in the ready-to-use installation position when the oil fill quantity is in accordance with the regulations.

In einer Ausgestaltung erstreckt sich die Trennwand aus einer geodätisch untenliegenden Grundfläche der Ölwanne. In one embodiment, the partition wall extends from a geodetically underneath base area of the oil pan.

Dadurch wird das Ritzelvolumen vom sonstigen Ölvolumen der Ölwanne zumindest an einer Un terseite bereichsweise abgetrennt. Die Trennwand kann in einem Urformverfahren (Druckguss oder Sandgussverfahren) in einem Stück mit der Ölwanne hergestellt werden. As a result, the pinion volume is partially separated from the rest of the oil volume of the oil pan, at least on an underside. The partition wall can be manufactured in one piece with the oil pan in a primary molding process (die casting or sand casting process).

In einerweiteren Ausgestaltung schließt die Trennwand, das Ritzel in sich aufnehmend, bündig mit einer um die Grundfläche angeordneten Innenwand ab. In a further embodiment, the partition, accommodating the pinion, ends flush with an inner wall arranged around the base area.

Dadurch wird das Ritzelvolumen vom sonstigen Ölvolumen der Ölwanne zumindest an seitlichen Außenseiten bereichsweise abgetrennt. As a result, the pinion volume is partially separated from the rest of the oil volume of the oil pan, at least on the lateral outsides.

In einerweiteren Ausgestaltung weist die Trennwand im Bereich einer in der Ölwanne angeord neten Ölablassöffnung eine Ausnehmung auf. In a further embodiment, the partition has a recess in the area of an oil drain opening arranged in the oil pan.

Durch die Ausnehmung kann Motoröl von dem Ritzelvolumen in das Ölwannenvolumen gelan gen und umgekehrt. Die Ausnehmung dient dazu, dass bei einem Ablassen des Motoröls bei ei nem Ölwechsel das Ritzelvolumen vollständig leerlaufen kann. Through the recess, engine oil can gelan conditions from the pinion volume into the oil pan volume and vice versa. The recess serves to ensure that the pinion volume can run completely empty when the engine oil is drained during an oil change.

In einer Ausgestaltung befindet sich die Ausnehmung in einer Fahrzeughochachse Z betrachtet mittig über der Ölablassöffnung. In one embodiment, the recess is located centrally above the oil drain opening when viewed in a vertical axis Z of the vehicle.

Dadurch kann eine Ölablassschraube, welche in die Ölablassöffnung eingeführt wird, in die Aus nehmung eindringen und diese weitestgehend verschließen. Ein gewisser Fluidaustausch zwi schen dem Ritzelvolumen und dem Ölwannenvolumen ist durchaus erwünscht, damit das Öl im Ritzelvolumen im gleichen Maße altert wie das sonstige im Verbrennungsmotor befindliche Mo toröl und damit es regelmäßig gefiltert und gekühlt wird. Weiterhin soll Öl bei einem Ölwechsel vollständig aus der Ölwanne und dem Ritzelvolumen auslaufen. Durch die Anordnung der Ölablassschraube unterhalb der Trennwand laufen beide Volumen beim Öffnen der Ölablass schraube leer. As a result, an oil drain plug, which is inserted into the oil drain opening, can penetrate into the recess and close it as far as possible. A certain fluid exchange between tween the pinion volume and the oil pan volume is quite desirable so that the oil in the pinion volume ages to the same extent as the other motor oil in the internal combustion engine and so that it is regularly filtered and cooled. Furthermore, oil should completely run out of the oil pan and the pinion volume when the oil is changed. Due to the arrangement of the oil drain screw below the partition, both volumes run empty when the oil drain screw is opened.

Zur Anordnung in einer solchen Ölwanne ist eine Ölpumpe vorgesehen, welche ein Antriebsrit zel aufweist, das eine in der Ölpumpe angeordnete Fördereinheit antreibt, wobei das Ritzel aus gestaltet ist zur Aufnahme eines von einer T rennwand teilweise umschlossenen Ritzelvolumens. Kurzbeschreibung der Figuren For arrangement in such an oil pan, an oil pump is provided which has a drive pinion which drives a delivery unit arranged in the oil pump, the pinion being designed to accommodate a pinion volume partially enclosed by a partition. Brief description of the figures

Die hierin beschriebenen Zeichnungen dienen nur zu Veranschaulichungszwecken und sollen den Umfang der vorliegenden Offenbarung in keiner Weise einschränken. Es zeigen: The drawings described herein are for illustrative purposes only and are not intended to limit the scope of the present disclosure in any way. Show it:

Fig. 1 : eine Ölwanne mit einer Ölpumpe, die in einem Gehäuse untergebracht ist; 1: an oil pan with an oil pump, which is accommodated in a housing;

Fig. 2: die Ölwanne ohne die Ölpumpe; 2: the oil pan without the oil pump;

Fig. 3: die Ölwanne mit einer eingebauten Ölpumpe und einer antriebsseitigen Trennwand; und3: the oil pan with a built-in oil pump and a partition on the drive side; and

Fig. 4: die Ölpumpe ohne die Ölwanne mit der Trennwand, welche antriebsseitig mit einem Ge häuse der Ölpumpe verbunden ist. Fig. 4: the oil pump without the oil pan with the partition, which is connected on the drive side with a housing of the oil pump.

Die folgende Beschreibung ist dem Wesen nach lediglich veranschaulichend. Der Klarheit hal ber sind in den Zeichnungen zur Bezeichnung ähnlicher Elemente dieselben Bezugszeichen verwendet. The following description is merely illustrative in nature. For the sake of clarity, the same reference numbers are used in the drawings to identify similar elements.

Figur 1 zeigt eine Ölwanne 1 eines ansonsten nicht dargestellten Verbrennungsmotors, insbe sondere für ein ebenfalls nicht dargestelltes Kraftfahrzeug. Die Ölwanne 1 ist zur Aufnahme ei ner Ölpumpe 2 ausgestaltet. Die Ölpumpe 2 wird durch ein nur angedeutetes Ritzel 3 angetrie ben. Das Ritzel 3 befindet sich in einer verwendungsgemäßen Einbaulage des Verbrennungs motors im Kraftfahrzeug zumindest teilweise unterhalb einer Öloberfläche 4 eines Ölwannenvo lumens 5. Dabei befindet sich das Ritzel 3 zumindest im Bereich unterhalb der Öloberfläche 4 innerhalb eines Ritzelvolumens 6. Das Ritzelvolumen 6 ist räumlich durch eine Trennwand 7 von dem Ölwannenvolumen 5 getrennt. Das Ritzel 3 kann durch einen nicht dargestellten Kettentrieb angetrieben werden. Dabei wirbelt es das Motoröl auf. Aufgrund der Trennwand 7 kann das von dem Ritzel 3 aufgewirbelte und aufgeschäumte Motoröl nicht in das sonstige Ölwannenvolumen 5 gelangen. Ohne die Trennwand 7 könnte es zu einem Aufschäumen von Motoröl kommen, welches sich in dem Ölwannenvolumen 5 befindet. Figure 1 shows an oil pan 1 of an otherwise not shown internal combustion engine, in particular special for a motor vehicle, also not shown. The oil pan 1 is designed to accommodate an oil pump 2. The oil pump 2 is ben by an only indicated pinion 3 is driven. The pinion 3 is in a suitable installation position of the internal combustion engine in the motor vehicle at least partially below an oil surface 4 of an oil pan volume 5. The pinion 3 is at least in the area below the oil surface 4 within a pinion volume 6. The pinion volume 6 is spatially through a Partition wall 7 separated from the oil pan volume 5. The pinion 3 can be driven by a chain drive, not shown. It whirls up the engine oil. Because of the partition wall 7, the engine oil whirled up and foamed by the pinion 3 cannot get into the rest of the oil pan volume 5. Without the partition 7, the engine oil which is located in the oil pan volume 5 could foam up.

Figur 2 zeigt die Ölwanne 1 entsprechend der Figur 1 ohne die Ölpumpe. Man erkennt, dass zu mindest ein T eil der T rennwand 7 einstückig an der Ölwanne 1 angeformt ist. Bei der Ölwanne 1 handelt es sich um ein in einem Gussverfahren hergestelltes Teil, das möglichst ohne umgos- sene Kerne hergestellt werden soll. Die Ölwanne 1 soll aus dem Gusswerkzeug entformbar sein. Mit entformbar ist gemeint, dass die Ölwanne 1 nach dem Gussvorgang aus einem nicht darge stellten Gusskern entnommen werden kann. Dementsprechend erstreckt sich die Trennwand 7 mit abgerundeten Fasen 14 orthogonal aus einer Grundfläche 11 der Ölwanne 1 . Die Fasen 14 entsprechen zulässigen Gussradien. Die Trennwand 7 weist entsprechende abgerundete Fasen 12 und leicht entformbare, leicht schräggestellte Wände 13 auf. Nach dem Gussvorgang sollen weiterhin nur die notwendigsten funktionellen Flächen bearbeitet werden müssen. Vorliegend sind dies eine Dichtfläche 8 und eine Ölablassöffnung 9. Die Trennwand 7 erstreckt sich einstü ckig aus einer Innenseite 10 einer Außenwand 17 der Ölwanne 1 . Die Fasen 14 zwischen der Trennwand 7 und der Innenseite 10 sind mit gießbaren beziehungsweise entformbaren Radien versehen. Figure 2 shows the oil pan 1 according to Figure 1 without the oil pump. It can be seen that at least part of the partition 7 is integrally formed on the oil pan 1. The oil pan 1 is a part produced in a casting process, which is to be produced as far as possible without encapsulated cores. The oil pan 1 should be demoldable from the casting tool. With demouldable is meant that the oil pan 1 can be removed from a cast core, not shown, after the casting process. Accordingly, the partition wall 7 with rounded chamfers 14 extends orthogonally from a base surface 11 of the oil pan 1. The chamfers 14 correspond to permissible casting radii. The partition 7 has corresponding rounded chamfers 12 and easily demolded, slightly inclined walls 13. After the casting process, only the most necessary functional surfaces should still have to be processed. In the present case, these are a sealing surface 8 and an oil drain opening 9. The partition 7 extends in one piece from an inner side 10 of an outer wall 17 of the oil pan 1. The bevels 14 between the partition 7 and the inside 10 are provided with castable or demoldable radii.

Weiterhin ist in Figur 2 erkennbar, dass die Trennwand 7 im Bereich der in der Ölwanne 1 ange ordneten Ölablassöffnung 9 zum Ablassen und erneuern des Motoröls eine Ausnehmung 15 aufweist. Die Ausnehmung 15 befindet sich in einer Fahrzeughochachse Z betrachtet mittig ge nau über der Ölablassöffnung 9. Dadurch läuft beim Wechsel des Motoröls, wenn die Ölablass öffnung 9 freigegeben wird, Motoröl sowohl aus dem Ölwannenvolumen 5 als auch dem Ritzel volumen 6 ab. It can also be seen in FIG. 2 that the partition 7 has a recess 15 in the area of the oil drain opening 9 arranged in the oil pan 1 for draining and renewing the engine oil. The recess 15 is located in a vehicle vertical axis Z, viewed in the middle, exactly above the oil drain opening 9. When the engine oil is changed, when the oil drain opening 9 is released, engine oil from both the oil pan volume 5 and the pinion volume 6 drains.

In Figur 3 ist erkennbar, dass sich die Trennwand in einem an der Ölpumpe 2 angeordnete Ab schirmblech 16 fortsetzt. Dementsprechend weist das Abschirmblech 16 an seiner der Trenn wand 7 zugewandten Seite eine bündig mit der Trennwand 7 abschließende Kante 22 auf.In FIG. 3 it can be seen that the partition wall continues in a shielding plate 16 arranged on the oil pump 2. Accordingly, the shielding plate 16 has, on its side facing the partition 7, an edge 22 that is flush with the partition 7.

Das Abschirmblech 16 ist abgesehen von der Kante 22 und zwei seitlichen Öffnungen für den Antrieb des Ritzels 3 topfförmig ausgestaltet. Außenumfänglich weist das Abschirmblech 16 ei nen Flanschbereich 18 auf, mit welchem das Abschirmblech 16 mit der Ölpumpe 2 verbunden werden kann. Apart from the edge 22 and two lateral openings for driving the pinion 3, the shielding plate 16 is pot-shaped. The outer circumference of the shielding plate 16 has a flange area 18 with which the shielding plate 16 can be connected to the oil pump 2.

Wie erwähnt weist das Abschirmblech 16 an seiner mit der Ölpumpe 2 montierten Einbaulage zwei Öffnungen auf, durch welche zwei Stränge eines Antriebs des Ritzels 3 geführt werden können. Der Antrieb wird üblicherweise durch eine Kette gebildet. As mentioned, the shielding plate 16 has two openings in its installation position mounted with the oil pump 2, through which two strands of a drive of the pinion 3 can be guided. The drive is usually formed by a chain.

Gleichwohl zumindest ein Ausführungsbeispiel in der vorangegangenen Beschreibung sowie der Figurenbeschreibung dargestellt wurde, sollte man anerkennen, dass eine hohe Anzahl an Vari ationen existiert. Weiterhin sollte man anerkennen, dass das Ausführungsbeispiel bzw. die Aus führungsbeispiele nur Beispiele sind und dass sie nicht dazu dienen, den Schutzbereich, die An wendbarkeit oder die genaue Ausgestaltung in irgendeiner Art und Weise zu beschränken. Viel mehr stellen die Beschreibung sowie die Figurenbeschreibung für den Fachmann eine nützliche Anleitung zur Implementierung mindestens einer Ausführungsform bereit, dabei sollte klar sein, dass verschiedene Änderungen in der Form und Funktion der beschriebenen Merkmale vorge nommen werden können, ohne den Schutzbereich der Ansprüche und deren Äquivalente zu verlassen. Bezugszeichenliste: Although at least one exemplary embodiment was shown in the preceding description and the description of the figures, it should be recognized that a large number of variations exist. Furthermore, it should be recognized that the exemplary embodiment or the exemplary embodiments are only examples and that they do not serve to restrict the scope of protection, the applicability or the precise configuration in any way. Rather, the description and the description of the figures provide the person skilled in the art with useful instructions for implementing at least one embodiment, it should be clear that various changes in the form and function of the features described can be made without the scope of protection of the claims and their equivalents to leave. List of reference symbols:

1 Ölwanne 1 oil pan

2 Ölpumpe 2 oil pump

3 Ritzel 3 pinions

4 Öloberfläche 4 oil surface

5 Ölwannenvolumen5 oil pan volume

6 Ritzelvolumen6 pinion volume

7 Trennwand 7 partition

8 Dichtfläche 8 sealing surface

9 Ölablassöffnung9 Oil drain hole

10 Innenseite 10 inside

11 Grundfläche 11 base area

12 Radien 12 radii

13 Wände 13 walls

14 Übergang 14 transition

15 Ausnehmung 15 recess

16 Abschirmblech16 shielding plate

17 Außenwand 17 outer wall

18 Flanschbereich18 flange area

20 Fördereinheit20 delivery unit

22 Kante 22 edge

Claims

Patentansprüche Claims 1. Ölwanne (1) eines Verbrennungsmotors, insbesondere für ein Kraftfahrzeug, ausge staltet zur Aufnahme einer Ölpumpe (2), wobei die Ölpumpe (2) durch ein Ritzel (3) angetrieben wird, wobei das Ritzel (3) in einer verwendungsgemäßen Einbaulage des Verbrennungsmotors im Kraftfahrzeug zumindest teilweise unterhalb einer Öloberfläche (4) eines Ölwannenvolumens (5) innerhalb eines Ritzelvolumens (6) an geordnet ist, welches durch eine Trennwand (7) von dem Ölwannenvolumen (5) ge trennt ist, so dass von dem Ritzel (3) aufgewirbeltes Motoröl nicht zu einem Auf schäumen von Motoröl führt, welches sich in dem Ölwannenvolumen (5) befindet. 1. Oil pan (1) of an internal combustion engine, in particular for a motor vehicle, is designed to accommodate an oil pump (2), wherein the oil pump (2) is driven by a pinion (3), the pinion (3) in an appropriate installation position of the Internal combustion engine in the motor vehicle is at least partially arranged below an oil surface (4) of an oil pan volume (5) within a pinion volume (6), which is separated from the oil pan volume (5) by a partition (7), so that the pinion (3 ) Whirled up engine oil does not lead to foaming of engine oil, which is located in the oil pan volume (5). 2. Ölwanne (1) nach Anspruch 1 , wobei zumindest ein Teil der Trennwand (7) einstü ckig an der Ölwanne (1) angeformt ist. 2. Oil pan (1) according to claim 1, wherein at least part of the partition (7) is integrally formed on the oil pan (1). 3. Ölwanne (1) nach Anspruch 1 , wobei sich die Trennwand (7) in einem an der Öl pumpe (2) angeordneten Abschirmblech (16) fortsetzt. 3. Oil pan (1) according to claim 1, wherein the partition (7) in one of the oil pump (2) arranged shield plate (16) continues. 4. Ölwanne (1) nach Anspruch 3, wobei das Abschirmblech (16) topfförmig ausgestaltet ist und außenumfänglich einen Flanschbereich (18) aufweist, mit welchem das Ab schirmblech (16) mit der Ölpumpe (2) verbunden werden kann. 4. Oil pan (1) according to claim 3, wherein the shielding plate (16) is cup-shaped and has a flange area (18) on the outer periphery, with which the shielding plate (16) can be connected to the oil pump (2). 5. Ölwanne (1) nach einem der Ansprüche 3 bis 4, wobei das Abschirmblech (16) in sei ner mit der Ölpumpe (2) montierten Einbaulage zwei Öffnungen aufweist, durch wel che zwei Stränge eines Antriebs des Ritzels (3) geführt werden können. 5. Oil pan (1) according to one of claims 3 to 4, wherein the shielding plate (16) in its ner with the oil pump (2) mounted installation position has two openings through wel che two strands of a drive of the pinion (3) can be guided . 6. Ölwanne (1) nach einem der vorhergehenden Ansprüche, wobei die Trennwand (7) sich einstückig aus einer geodätisch untenliegenden Grundfläche (11 ) der Ölwanne (1) erstreckt. 6. Oil pan (1) according to one of the preceding claims, wherein the partition (7) extends in one piece from a geodetically underlying base (11) of the oil pan (1). 7. Ölwanne (1) nach Anspruch 6, wobei das Abschirmblech (16), das Ritzel (3) in sich aufnehmend, bündig mit der um an der Ölwanne (1) angeformten Trennwand (7) ab schließt. 7. Oil pan (1) according to claim 6, wherein the shielding plate (16), the pinion (3) receiving in itself, flush with the partition (7) formed on the oil pan (1) closes. 8. Ölwanne (1 ) nach einem der Ansprüche 6 und/oder 7, wobei die an der Ölwanne (1 ) angeformte Trennwand (7) im Bereich einer in der Ölwanne (1) angeordneten Ölablassöffnung (9) einen Ausnehmung (15) aufweist. 8. Oil pan (1) according to one of claims 6 and / or 7, wherein the partition wall (7) formed on the oil pan (1) has a recess (15) in the region of an oil drain opening (9) arranged in the oil pan (1). 9. Ölwanne (1) nach Anspruch 8, wobei die Ausnehmung (15) sich in einer Fahrzeug hochachse (Z) betrachtet mittig über der Ölablassöffnung (9) befindet. 9. Oil pan (1) according to claim 8, wherein the recess (15) is in a vehicle vertical axis (Z) viewed centrally above the oil drain opening (9). 10. Ölpumpe (2), aufweisend ein Antriebsritzel (3), welches eine in der Ölpumpe (2) an- geordnete Fördereinheit (20) antreibt, wobei das Ritzel (3) ausgestaltet ist zur Auf nahme eines von einer Trennwand (7) teilweise umschlossenen Ritzelvolumens (6) in einer Ölwanne (1) nach einem der Ansprüche 1 bis 9. 10. Oil pump (2), having a drive pinion (3) which drives a delivery unit (20) arranged in the oil pump (2), the pinion (3) being designed to partially accommodate one of a partition (7) enclosed pinion volume (6) in an oil pan (1) according to one of claims 1 to 9.
EP20793669.1A 2019-11-14 2020-10-20 Oil sump with integrated shielding of the oil located in the oil sump from a pinion Active EP4058660B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019217579.1A DE102019217579A1 (en) 2019-11-14 2019-11-14 Oil pan with an integrated shield of the oil in the oil pan from a pinion
PCT/EP2020/079456 WO2021094061A1 (en) 2019-11-14 2020-10-20 Oil sump with integrated shielding of the oil located in the oil sump from a pinion

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EP4058660A1 true EP4058660A1 (en) 2022-09-21
EP4058660B1 EP4058660B1 (en) 2024-11-27

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CN (1) CN114729583B (en)
DE (1) DE102019217579A1 (en)
WO (1) WO2021094061A1 (en)

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CN117703562A (en) * 2023-12-28 2024-03-15 安徽省佳隆汽车配件有限公司 Oil pan and oil pan assembly

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JP3052002B2 (en) * 1991-03-27 2000-06-12 本田技研工業株式会社 Oil tank structure of dry sump lubricated internal combustion engine
GB2303669B (en) * 1995-07-20 1998-03-04 Suzuki Motor Co Oil pump sprocket cover for an internal combustion engine
DE19910271B4 (en) * 1999-03-08 2014-04-03 Volkswagen Ag Internal combustion engine
DE10029844B4 (en) * 2000-06-16 2004-04-15 Dr.Ing.H.C. F. Porsche Ag Internal combustion engine, in particular for motorcycles
EP1207277B1 (en) * 2000-11-16 2005-12-21 Honda Giken Kogyo Kabushiki Kaisha Oil pump mounting structure for engine
DE10159087C2 (en) * 2001-12-01 2003-11-13 Porsche Ag Internal combustion engine
JP3957674B2 (en) * 2003-10-21 2007-08-15 愛知機械工業株式会社 Oil pan structure
DE102006027660A1 (en) * 2006-06-14 2007-12-20 Schwäbische Hüttenwerke Automotive GmbH & Co. KG Oil pump device for an internal combustion engine with an oil pan
DE102008060412B4 (en) * 2008-11-28 2023-03-30 Dr. Ing. H.C. F. Porsche Aktiengesellschaft combustion engine
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DE102009041981A1 (en) * 2009-09-17 2011-03-24 Daimler Ag Container for vehicle for receiving fluid, has two chambers, in which fluid, particularly lubricant for engine is accommodated, where chambers are fluidically separated by separation wall
JP5513925B2 (en) * 2010-02-25 2014-06-04 本田技研工業株式会社 Crankcase structure
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KR102730528B1 (en) * 2016-12-06 2024-11-14 현대자동차주식회사 Assembling apparatus for oil pump

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CN114729583A (en) 2022-07-08
DE102019217579A1 (en) 2021-05-20
EP4058660B1 (en) 2024-11-27
WO2021094061A1 (en) 2021-05-20

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