EP1316684A2 - Oil collecting device and oil pump for an internal combustion engine - Google Patents

Oil collecting device and oil pump for an internal combustion engine Download PDF

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Publication number
EP1316684A2
EP1316684A2 EP02023997A EP02023997A EP1316684A2 EP 1316684 A2 EP1316684 A2 EP 1316684A2 EP 02023997 A EP02023997 A EP 02023997A EP 02023997 A EP02023997 A EP 02023997A EP 1316684 A2 EP1316684 A2 EP 1316684A2
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EP
European Patent Office
Prior art keywords
oil
pump
housing
oil collecting
opening
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
EP02023997A
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German (de)
French (fr)
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EP1316684A3 (en
EP1316684B1 (en
Inventor
Frank Maier
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Dr Ing HCF Porsche AG
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Dr Ing HCF Porsche AG
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Publication of EP1316684A3 publication Critical patent/EP1316684A3/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
    • 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
    • F01M1/00—Pressure lubrication
    • F01M1/12—Closed-circuit lubricating systems not provided for in groups F01M1/02 - F01M1/10
    • F01M2001/123—Closed-circuit lubricating systems not provided for in groups F01M1/02 - F01M1/10 using two or more 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
    • F01M2011/0037—Oilsumps with different oil compartments
    • F01M2011/0041—Oilsumps with different oil compartments for accommodating movement or position of engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/0004—Oilsumps
    • F01M2011/007—Oil pickup tube to oil pump, e.g. strainer

Definitions

  • the invention relates to an oil collecting device and an oil pump for a Internal combustion engine according to the features of the preambles of the main claims.
  • the object of the invention is therefore to provide means by means of which Oil pump sucked air is separated before the lubricating oil to consumers is fed.
  • the means for air separation should be space-saving and designed in this way be that the oil sump forming in the oil guide housing the functionality of the Air separator not affected.
  • the lubricating oil can escape from the pressure chamber, and through the Drain the oil pump housing into the first oil collection chamber.
  • the lubricating oil remains sufficient time for defoaming, so that the gas content of the lubricating oil when it is in the Oil sump is already significantly reduced.
  • the opening monitored by the valve body also flows into the trough-shaped border.
  • the double pump has two pump stages designed as gear pairs, the first pump stage is provided to supply the consumer, while the second Pump stage the oil extracted from the rear oil collection chamber in the front Oil collection space returns.
  • the oil collecting housing shown in Fig. 1, hereinafter referred to as oil pan 2 is in the assembled state with its flange surface 4 on a flange surface 6 Crankcase lower part 8, a so-called bedplate, attached.
  • a lubricating oil pump 10 designed as a double pump attached.
  • a first oil collecting space 12 is formed, in which the oil required for the supply of lubricating oil accumulates in an oil sump.
  • an oil snorkel 14 is arranged over a first Oil suction line 16 to a suction side of a first pump stage 18 of the double oil pump 10 leads.
  • a second, rear oil collecting space 20 is formed in the oil pan 2 the lowest point of which is also an oil snorkel 22, which is connected to a second one Oil suction line 24 with a suction side of a second pump stage 26 of the oil pump 10 connected is.
  • a plastic insert 28 is inserted, the two Separates oil collection spaces 12 and 20.
  • the insert 28 serves as an oil barrier and also prevents the lubricating oil from running out when driving uphill the first oil collection chamber 12 in the crank chamber and / or in the second Oil collecting space 20 can cross.
  • the lubricating oil is in the second oil collecting space 20 from the rear main bearings or connecting rod bearings of the crankshaft, which are not directly in the reaches the first oil collection chamber 12, collected and via the second oil suction line 24 pumped back into the first oil collection space 12; similarly the lubricating oil from the Spray nozzles, not shown, for piston cooling.
  • the lubricating oil pump 10 consisting of two pump stages points in the first Pump stage 18 in a known manner two intermeshing gear wheels 30 and 32 which separate the pump stage 18 into a suction side 34 and a pressure side 36 split off.
  • the first pump stage 18 has a pressure outlet 38 through which the Consumers of the internal combustion engine, such as. B. main or connecting rod bearings with lubricating oil be supplied.
  • the second pump stage 26 there are also two inside each other Intermeshing gears 40 and 42 are arranged, which also pump stage 26 in one Separate suction side 44 and a pressure side 46.
  • the housing of the oil pump 10 is constructed in three parts and consists of a basic housing 10a and two am Basic housing attached cover elements 10b and 10c.
  • the top of the The base housing 10a has an opening 48 which is in contact with the pressure side 46 of the second Pump stage 26 is connected.
  • the opening 48 has a tub-like border 50 enclosed, which forms a kind of riser 51.
  • a pressure relief valve 54 is monitored on the top of the basic housing 10a of the oil pump 10 .
  • the valve body 56 indicates known Open the opening 52 when the one created by the first pump stage 18 Oil pressure reaches a specified maximum pressure. If the opening 52 through the Valve body 56 released, then a part of the through the first pump stage 18th pumped lubricating oil also in the riser 51, from where it is after a certain Time also passes over the border 50 of the riser 51 and in the first Oil collection chamber 12 arrives.
  • the two drive gears 30, 40 of the two pump stages 18 and 26 are over a sprocket 58, which in turn has a chain drive with a not shown Crankshaft gear is connected, driven.
  • a turbocharger suction pump 60 At the front of the oil pan 2 is further flanged a turbocharger suction pump 60, which is also via the Chain gear 58 is driven.
  • a driver 62 is on the chain gear 58 provided that in the drive shaft of the suction pump 60 not shown intervenes.
  • the insert 28 is connected to two side parts 64 and 66, in which Oil return openings 68 are arranged. That in the two side parts 64 and 66 arranged oil return openings 68 each open into one, not shown Oil collection channel, both of which open below the oil level in the oil sump, whereby It is ensured that the lubricating oil is consumed by the consumer despite the Crankshaft and piston movements quickly caused pressure pulsations in the first oil collection chamber 12 returned.

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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)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

Oil collecting device (2) comprises an oil collecting housing arranged below a crank housing and having at least two oil collecting chambers. An oil pump with two pumping stages is arranged in a first oil collecting chamber. The housing of the oil pump has an opening (48) on its upper side connecting the pressure side of a second pump stage. Oil suctioned from the second oil collecting chamber is transferred to a first oil collecting chamber. <??>Preferred Features: The opening is enclosed by a sink-like edge (50). A pressure limiting valve connected to the pressure side of the first pump stage is provided in the housing of the oil pump.

Description

Die Erfindung geht aus von einer Ölauffangvorrichtung und einer Ölpumpe für eine Brennkraftmaschine nach den Merkmalen der Oberbegriffe der Hauptansprüche.The invention relates to an oil collecting device and an oil pump for a Internal combustion engine according to the features of the preambles of the main claims.

In der noch nicht veröffentlichten deutschen Patentanmeldung DE 100 14 368.7 ist eine Ölauffangvorrichtung sowie eine darin angeordnete Ölpumpe beschrieben, bei der mit Hilfe einer Doppelölpumpe das in einem hinteren Ölsammelraum befindliche Schmieröl in den eigentlichen Ölsumpf der Brennkraftmaschine gefördert wird, bevor es über eine zweite Druck- bzw. Absaugstufe den Verbrauchern zugeführt wird. Da aus dem hinteren Ölsammelraum auch Luft mit angesaugt wird, ist am Ausgang der zweiten Druckstufe ein Öl/Luftabscheider in Form eines Swirlpots angeordnet, der sicher stellt, dass ein Großteil der Gasanteile vom Schmieröl separiert werden, bevor das Schmieröl in den ersten Ölsammelraum bzw. Ölsumpf zurückgelangt. Dieser Swirlpot benötigt zusätzlichen Bauraum, der in dem Ölauffanggehäuse nur begrenzt zur Verfügung steht und zudem muss sichergestellt werden, dass der am unteren Ende des Öl/Luftabscheiders vorgesehene Ölaustritt sich oberhalb des im Ölsumpf ausgebildeten Ölspiegels befindet.In the as yet unpublished German patent application DE 100 14 368.7 there is one Oil collecting device and an oil pump arranged therein described in the With the help of a double oil pump, the lubricating oil in a rear oil collection chamber the actual oil sump of the internal combustion engine is pumped before it has a second pressure or suction stage is supplied to the consumers. Because from the back Oil collection chamber also air is sucked in, is at the outlet of the second pressure stage Oil / air separator arranged in the form of a swirlpot, which ensures that a large part the gas components are separated from the lubricating oil before the lubricating oil in the first Oil collection space or oil sump returned. This swirlpot needs additional Space that is only available to a limited extent in the oil collecting housing and also it must be ensured that the at the lower end of the oil / air separator The intended oil outlet is above the oil level formed in the oil sump.

Aufgabe der Erfindung ist es daher, Mittel vorzusehen, mit deren Hilfe die von der Ölpumpe angesaugte Luft abgeschieden wird, bevor das Schmieröl den Verbrauchern zugeführt wird. Die Mittel zur Luftabscheidung sollen platzsparend und so ausgebildet sein, dass der sich im Ölführungsgehäuse ausbildende Ölsumpf die Funktionsweise des Luftabscheiders nicht beeinträchtigt.The object of the invention is therefore to provide means by means of which Oil pump sucked air is separated before the lubricating oil to consumers is fed. The means for air separation should be space-saving and designed in this way be that the oil sump forming in the oil guide housing the functionality of the Air separator not affected.

Die Lösung der Aufgabe erfolgt durch die in den Hauptansprüchen angegebenen Merkmale.The task is solved by the specified in the main claims Characteristics.

Durch die auf der Oberseite des Ölpumpengehäuses am Ausgang der zweiten Druckseite vorgesehene Öffnung kann das Schmieröl aus dem Druckraum austreten, und über das Ölpumpengehäuse in den ersten Ölsammelraum abfließen. Dem Schmieröl verbleibt genügend Zeit zur Entschäumung, so dass der Gasanteil des Schmieröls, wenn es in den Ölsumpf übertritt, bereits erheblich reduziert ist.By the on the top of the oil pump housing at the outlet of the second pressure side provided opening, the lubricating oil can escape from the pressure chamber, and through the Drain the oil pump housing into the first oil collection chamber. The lubricating oil remains sufficient time for defoaming, so that the gas content of the lubricating oil when it is in the Oil sump is already significantly reduced.

In den Unteransprüchen sind weitere vorteilhafte Ausgestaltungen und Verbesserungen der erfindungsgemäßen Ölauffangvorrichtung bzw. der Ölpumpe enthalten.Further advantageous refinements and improvements are in the subclaims contain the oil collecting device according to the invention or the oil pump.

Um die Zeit zur Selbstentschäumung des Schmieröls zu vergrößern, ist auf vorteilhafte Weise vorgesehen, die auf der Oberseite des Ölpumpengehäuses vorgesehene Austrittsöffnung mit einer wannenartigen Umrandung zu umschließen, so dass das aus der Öffnung austretende Schmieröl in dieser Art Wanne so lange aufgefangen wird, bis das überschüssige Schmieröl über den Wannenrand in den Ölsumpf der Brennkraftmaschine abläuft.To increase the time for self-defoaming of the lubricating oil is advantageous Way provided, that provided on the top of the oil pump housing To enclose the outlet opening with a tub-like border, so that from Lubricating oil escaping from the opening is collected in this type of tub until the excess lubricating oil over the tub edge into the oil sump Internal combustion engine expires.

Im Gehäuse der Doppelölpumpe ist ein nach dem Stand der Technik bekanntes Druckbegrenzungsventil angeordnet, dessen durch den Ventilkörper überwachte Öffnung ebenfalls innerhalb der wannenförmigen Umrandung einmündet.In the housing of the double oil pump is a known one according to the state of the art Pressure relief valve arranged, the opening monitored by the valve body also flows into the trough-shaped border.

Die Doppelpumpe weist zwei als Zahnradpaare ausgebildete Pumpenstufen auf, wobei die erste Pumpenstufe zur Versorgung der Verbraucher vorgesehen ist, während die zweite Pumpenstufe das aus dem hinteren Ölsammelraum abgesaugte Öl in den vorderen Ölsammelraum zurückführt.The double pump has two pump stages designed as gear pairs, the first pump stage is provided to supply the consumer, while the second Pump stage the oil extracted from the rear oil collection chamber in the front Oil collection space returns.

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

Es zeigen:

Fig. 1
eine Draufsicht auf eine Ölauffangvorrichtung,
Fig. 2
einen Schnitt entlang der Linie II - II in Fig. 1,
Fig. 3
eine Perspektivansicht auf die Ölauffangvorrichtung und
Fig. 4
eine an einem Kurbelgehäuseunterteil befestigte Ölpumpe.
Show it:
Fig. 1
a plan view of an oil collecting device,
Fig. 2
2 shows a section along the line II-II in FIG. 1,
Fig. 3
a perspective view of the oil collector and
Fig. 4
an oil pump attached to a crankcase lower part.

Beschreibung des Ausführungsbeispiels:Description of the embodiment:

Das in Fig. 1 dargestellte Ölauffanggehäuse, im folgenden als Ölwanne 2 bezeichnet, ist im zusammengebauten Zustand mit seiner Flanschfläche 4 an einer Flanschfläche 6 eines Kurbelgehäuseunterteils 8, einem sog. bedplate, befestigt. Auf der Unterseite des Kurbelgehäuseunterteils 8 ist eine als Doppelpumpe ausgebildete Schmierölpumpe 10 befestigt. In der Ölwanne 2 ist ein erster Ölsammelraum 12 ausgebildet, in dem sich das für die Schmierölversorgung notwendige Öl in einem Ölsumpf ansammelt. Im ersten Ölsammelraum 12 ist ein Ölschnorchel 14 angeordnet, der über eine erste Ölabsaugleitung 16 zu einer Saugseite einer ersten Pumpenstufe 18 der Doppelölpumpe 10 führt. In der Ölwanne 2 ist ein zweiter, hinterer Ölsammelraum 20 ausgebildet, an dessen tiefster Stelle ebenfalls ein Ölschnorchel 22 angeordnet ist, der über eine zweite Ölabsaugleitung 24 mit einer Saugseite einer zweiten Pumpenstufe 26 der Ölpumpe 10 verbunden ist.The oil collecting housing shown in Fig. 1, hereinafter referred to as oil pan 2, is in the assembled state with its flange surface 4 on a flange surface 6 Crankcase lower part 8, a so-called bedplate, attached. On the bottom of the The lower crankcase part 8 is a lubricating oil pump 10 designed as a double pump attached. In the oil pan 2, a first oil collecting space 12 is formed, in which the oil required for the supply of lubricating oil accumulates in an oil sump. In the first Oil collection chamber 12, an oil snorkel 14 is arranged over a first Oil suction line 16 to a suction side of a first pump stage 18 of the double oil pump 10 leads. A second, rear oil collecting space 20 is formed in the oil pan 2 the lowest point of which is also an oil snorkel 22, which is connected to a second one Oil suction line 24 with a suction side of a second pump stage 26 of the oil pump 10 connected is.

In die Ölwanne 2 ist ein Kunststoff - Einlegeteil 28 eingesetzt, das die beiden Ölsammelräume 12 und 20 voneinander trennt. Das Einlegeteil 28 dient als Ölbarriere und verhindert auch bei Steigungsfahrten des Kraftfahrzeugs, dass das Schmieröl aus dem ersten Ölsammelraum 12 in den Kurbelraum und/oder in den zweiten Ölsammelraum 20 übertreten kann. Im zweiten Ölsammelraum 20 wird das Schmieröl von den hinteren Hauptlagern bzw. Pleuellagern der Kurbelwelle, das nicht direkt in den ersten Ölsammelraum 12 gelangt, aufgefangen und über die zweite Ölabsaugleitung 24 in den ersten Ölsammelraum 12 zurückgepumpt; analog dazu das Schmieröl aus den nicht dargestellten Spritzdüsen für die Kolbenkühlung.In the oil pan 2, a plastic insert 28 is inserted, the two Separates oil collection spaces 12 and 20. The insert 28 serves as an oil barrier and also prevents the lubricating oil from running out when driving uphill the first oil collection chamber 12 in the crank chamber and / or in the second Oil collecting space 20 can cross. The lubricating oil is in the second oil collecting space 20 from the rear main bearings or connecting rod bearings of the crankshaft, which are not directly in the reaches the first oil collection chamber 12, collected and via the second oil suction line 24 pumped back into the first oil collection space 12; similarly the lubricating oil from the Spray nozzles, not shown, for piston cooling.

Die aus zwei Pumpenstufen bestehende Schmierölpumpe 10 weist in der ersten Pumpenstufe 18 auf bekannte Art und Weise zwei ineinanderkämmende Zahnräder 30 und 32 auf, die die Pumpenstufe 18 in eine Saugseite 34 und eine Druckseite 36 abtrennen. Die erste Pumpenstufe 18 weist einen Druckausgang 38 auf, über den die Verbraucher der Brennkraftmaschine, wie z. B. Haupt- oder Pleuellager mit Schmieröl versorgt werden. In der zweiten Pumpenstufe 26 sind ebenfalls zwei ineinander kämmende Zahnräder 40 und 42 angeordnet, die ebenfalls die Pumpenstufe 26 in eine Saugseite 44 und eine Druckseite 46 abtrennen. Das Gehäuse der Ölpumpe 10 ist dreiteilig aufgebaut und besteht aus einem Grundgehäuse 10a und zwei am Grundgehäuse befestigten Deckelelementen 10b und 10c. Die Oberseite des Grundgehäuses 10a weist eine Öffnung 48 auf, die mit der Druckseite 46 der zweiten Pumpenstufe 26 verbunden ist. Die Öffnung 48 ist von einer wannenartigen Umrandung 50 umschlossen, die eine Art Steigkamin 51 bildet.The lubricating oil pump 10 consisting of two pump stages points in the first Pump stage 18 in a known manner two intermeshing gear wheels 30 and 32 which separate the pump stage 18 into a suction side 34 and a pressure side 36 split off. The first pump stage 18 has a pressure outlet 38 through which the Consumers of the internal combustion engine, such as. B. main or connecting rod bearings with lubricating oil be supplied. In the second pump stage 26 there are also two inside each other Intermeshing gears 40 and 42 are arranged, which also pump stage 26 in one Separate suction side 44 and a pressure side 46. The housing of the oil pump 10 is constructed in three parts and consists of a basic housing 10a and two am Basic housing attached cover elements 10b and 10c. The top of the The base housing 10a has an opening 48 which is in contact with the pressure side 46 of the second Pump stage 26 is connected. The opening 48 has a tub-like border 50 enclosed, which forms a kind of riser 51.

Wenn das Schmieröl aus dem zweiten Ölsammelraum 20 über die zweite Pumpenstufe 26 abgesaugt wird, gelangt es von der Saugseite 44 über die Außenflanken der beiden Zahnräder 40 und 42 auf die Druckseite 46. Von dort aus wird es über die Öffnung 48 in den Steigkamin 51 gefördert. Im Steigkamin 51 kann eine gewisse Schmierölmenge aufgefangen werden, bevor der über die wannenartige Umrandung 50 übertretende Teil des Schmieröls über das Ölpumpengehäuse 10 in den ersten Ölsammelraum 12 abläuft. Während der Zeit, in der das Schmieröl im Steigkamin 51 gehalten ist, kann sich das Schmieröl entschäumen und die mit einer geringeren Dichte versehenen Gasbestandteile des Schmieröls über eine nicht weiter dargestellte Kurbelgehäuseentlüftungseinrichtung nach außen abgeführt werden. Dadurch, daß das Schmieröl oberhalb des in der Ölwanne 2 befindlichen Ölspiegels austritt, kann das Schmieröl am Gehäuse der Schmierölpumpe 10 entlang, in den Ölsumpf abfließen. Der Weg, den das Schmieröl dabei zurücklegt, kann dabei zu einer weiteren Entschäumung des Öls ausgenutzt werden, bevor letzteres über die erste Ölabsaugleitung 16 wieder den Verbrauchern zugeführt wird.When the lubricating oil from the second oil collection space 20 via the second pump stage 26 is suctioned off, it passes from the suction side 44 over the outer flanks of the two Gears 40 and 42 on the pressure side 46. From there it is in via the opening 48 in promoted the riser chimney 51. A certain amount of lubricating oil can be in the rising chimney 51 be caught before the part passing over the trough-like border 50 of the lubricating oil runs through the oil pump housing 10 into the first oil collection chamber 12. During the time that the lubricating oil is held in the riser 51, this can change Defoaming lubricating oil and the gas components with a lower density the lubricating oil via a crankcase ventilation device, not shown be discharged to the outside. Because the lubricating oil above that in the oil pan 2 oil level escapes, the lubricating oil on the housing of the lubricating oil pump 10 along, drain into the oil sump. The way the lubricating oil travels can be used for further defoaming of the oil before the latter is fed back to the consumers via the first oil suction line 16.

Auf der Oberseite des Grundgehäuses 10a der Ölpumpe 10 ist eine weitere rechteckförmige Öffnung 52 vorgesehen, die durch einen federbelasteten Ventilkörper 56 eines Druckbegrenzungsventils 54 überwacht ist. Der Ventilkörper 56 gibt auf bekannte Art und Weise die Öffnung 52 frei, wenn der durch die erste Pumpenstufe 18 erzeugte Öldruck einen festgelegten Maximaldruck erreicht. Wird die Öffnung 52 durch den Ventilkörper 56 freigegeben, so tritt ein Teil des durch die ersten Pumpenstufe 18 geförderten Schmieröls ebenfalls in den Steigkamin 51, von wo es nach einer gewissen Zeit ebenfalls über die Umrandung 50 des Steigkamins 51 übertritt und in den ersten Ölsammelraum 12 gelangt.On the top of the basic housing 10a of the oil pump 10 is another rectangular opening 52 provided by a spring-loaded valve body 56 a pressure relief valve 54 is monitored. The valve body 56 indicates known Open the opening 52 when the one created by the first pump stage 18 Oil pressure reaches a specified maximum pressure. If the opening 52 through the Valve body 56 released, then a part of the through the first pump stage 18th pumped lubricating oil also in the riser 51, from where it is after a certain Time also passes over the border 50 of the riser 51 and in the first Oil collection chamber 12 arrives.

Die beiden Antriebszahnräder 30, 40 der beiden Pumpenstufen 18 und 26 werden über ein Kettenzahnrad 58, das wiederum über einen Kettentrieb mit einem nicht dargestellten Kurbelwellenzahnrad verbunden ist, angetrieben. An der Stirnseite der Ölwanne 2 ist weiterhin eine Turbolader - Absaugpumpe 60 angeflanscht, die ebenfalls über das Kettenzahnrad 58 angetrieben ist. Dazu ist am Kettenzahnrad 58 ein Mitnehmer 62 vorgesehen, der in die nicht näher dargestellte Antriebswelle der Absaugpumpe 60 eingreift.The two drive gears 30, 40 of the two pump stages 18 and 26 are over a sprocket 58, which in turn has a chain drive with a not shown Crankshaft gear is connected, driven. At the front of the oil pan 2 is further flanged a turbocharger suction pump 60, which is also via the Chain gear 58 is driven. For this purpose, a driver 62 is on the chain gear 58 provided that in the drive shaft of the suction pump 60 not shown intervenes.

Das Einlegeteil 28 ist mit zwei Seitenteilen 64 und 66 verbunden, in denen Ölrücklauföffnungen 68 angeordnet sind. Die in den beiden Seitenteilen 64 und 66 angeordneten Ölrücklauföffnungen 68 münden jeweils in einen nicht dargestellten Ölsammelkanal ein, die beide unterhalb des Ölspiegels im Ölsumpf einmünden, wodurch sichergestellt ist, dass das Schmieröl von den Verbrauchern trotz der durch die Kurbelwellen- und Kolbenbewegungen verursachten Druckpulsationen schnell in den ersten Ölsammelraum 12 zurückgelangt.The insert 28 is connected to two side parts 64 and 66, in which Oil return openings 68 are arranged. That in the two side parts 64 and 66 arranged oil return openings 68 each open into one, not shown Oil collection channel, both of which open below the oil level in the oil sump, whereby It is ensured that the lubricating oil is consumed by the consumer despite the Crankshaft and piston movements quickly caused pressure pulsations in the first oil collection chamber 12 returned.

Claims (6)

Ölauffangvorrichtung für eine Brennkraftmaschine mit einem unterhalb eines Kurbelgehäuses angeordneten Ölauffanggehäuse, das mindestens zwei Ölsammelräume aufweist, wobei in einem ersten Ölsammelraum eine Ölpumpe mit zwei Pumpenstufen angeordnet ist, an deren beiden Absaugstufen jeweils eine Ölabsaugleitung angeschlossen ist, wobei die erste Ölabsaugleitung in den ersten Ölsammelraum eingreift, um das Schmieröl über die Druckseite der ersten Pumpenstufe zu den Verbrauchern zu fördern und dass die zweite mit der zweiten Absaugstufe verbundene Ölabsaugleitung zu einem zweiten Ölsammelraum führt, dadurch gekennzeichnet, dass das Gehäuse (10a) der Ölpumpe (10) auf seiner Oberseite eine mit der Druckseite (46) der zweiten Pumpenstufe (26) verbundene Öffnung (48) aufweist, über die das aus dem zweiten Ölsammelraum (20) abgesaugte Öl in den ersten Ölsammelraum (12) überführt wird.Oil collecting device for an internal combustion engine with an oil collecting housing arranged below a crankcase, which has at least two oil collecting spaces, wherein an oil pump with two pump stages is arranged in a first oil collecting chamber, an oil suction line being connected to each of the two suction stages, the first oil suction line engaging in the first oil collecting chamber in order to convey the lubricating oil to the consumers via the pressure side of the first pump stage and that the second oil suction line connected to the second suction stage leads to a second oil collection space, characterized in that the housing (10a) of the oil pump (10) has a top on it the pressure side (46) of the second pump stage (26) has connected opening (48), through which the oil extracted from the second oil collecting space (20) is transferred into the first oil collecting space (12). Ölauffangvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Öffnung (48) von einer wannenartigen Umrandung (50) umschlossen ist.Oil collecting device according to claim 1, characterized in that the opening (48) is enclosed by a trough-like border (50). Ölauffangvorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass im Gehäuse (10a) der Ölpumpe (10) ein der Druckseite (36) der ersten Pumpenstufe (18) nachgeschaltetes Druckbegrenzungsventil (54) vorgesehen ist, dessen Ventilkörper (56) eine Öffnung (52) überwacht, die ebenfalls innerhalb der wannenförmigen Umrandung (50) einmündet.Oil collecting device according to claim 2, characterized in that in the housing (10a) of the oil pump (10) a pressure limiting valve (54) is provided downstream of the pressure side (36) of the first pump stage (18), the valve body (56) of which monitors an opening (52) , which also opens within the trough-shaped border (50). Ölpumpe für eine Brennkraftmaschine zur Absaugung des in einer Ölauffangvorrichtung befindlichen Schmieröls, mit einem Ölpumpengehäuse, in dem mindestens zwei Paare von Zahnrädern oder zwei Paare von Rotoren angeordnet sind, durch deren Rotation mindestens zwei Pumpenstufen mit jeweils einer Saugseite und einer Druckseite ausgebildet sind, dadurch gekennzeichnet, dass eine einen druckseitigen Ausgang bildende Öffnung (48) in eine aus dem Ölpumpengehäuse (10a) herausgebildete wannenartige Umrandung (50) einmündet.Oil pump are arranged for an internal combustion engine for the suction of the lubricating oil contained in an oil collecting device having an oil pump housing, in which at least two pairs of toothed wheels or two pairs of rotors, at least two pump stages are formed, each having a suction side and a pressure side by the rotation thereof, characterized in that that an opening (48) forming an outlet on the pressure side opens into a trough-like border (50) formed out of the oil pump housing (10a). Ölpumpe nach Anspruch 4, dadurch gekennzeichnet, dass im Gehäuse (10a) der Ölpumpe (10) ein der Druckseite (36) der ersten Pumpenstufe (18) nachgeschaltetes Druckbegrenzungsventil (54) vorgesehen ist, dessen Ventilkörper (56) eine Öffnung (52) überwacht, die ebenfalls innerhalb der wannenförmigen Umrandung (50) einmündet.Oil pump according to claim 4, characterized in that in the housing (10a) of the oil pump (10) a pressure relief valve (54) is provided downstream of the pressure side (36) of the first pump stage (18), the valve body (56) of which monitors an opening (52) , which also opens within the trough-shaped border (50). Ölpumpe nach Anspruch 4 oder 5, dadurch gekennzeichnet, dass die Ölpumpe (10) zwei Zahnradpaare (30, 32 bzw. 40, 42) aufweist.Oil pump according to claim 4 or 5, characterized in that the oil pump (10) has two gear pairs (30, 32 or 40, 42).
EP02023997A 2001-12-01 2002-10-26 Oil collecting device and oil pump for an internal combustion engine Expired - Lifetime EP1316684B1 (en)

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DE10159090A DE10159090C2 (en) 2001-12-01 2001-12-01 Oil collecting device and oil pump for an internal combustion engine
DE10159090 2001-12-01

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EP1316684A2 true EP1316684A2 (en) 2003-06-04
EP1316684A3 EP1316684A3 (en) 2003-11-05
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EP (1) EP1316684B1 (en)
JP (1) JP2003193816A (en)
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US11028741B1 (en) 2020-08-24 2021-06-08 Apq Development, Llc Oil pick-up assembly
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EP1316684A3 (en) 2003-11-05
US20030152464A1 (en) 2003-08-14
DE10159090C2 (en) 2003-09-11
US6811383B2 (en) 2004-11-02
EP1316684B1 (en) 2005-05-04
ATE294918T1 (en) 2005-05-15
DE50202986D1 (en) 2005-06-09
DE10159090A1 (en) 2003-06-12
JP2003193816A (en) 2003-07-09

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