EP1989448A1 - Oil-pump and vacuum-pump module - Google Patents

Oil-pump and vacuum-pump module

Info

Publication number
EP1989448A1
EP1989448A1 EP07704538A EP07704538A EP1989448A1 EP 1989448 A1 EP1989448 A1 EP 1989448A1 EP 07704538 A EP07704538 A EP 07704538A EP 07704538 A EP07704538 A EP 07704538A EP 1989448 A1 EP1989448 A1 EP 1989448A1
Authority
EP
European Patent Office
Prior art keywords
pump
housing
oil
vacuum pump
vacuum
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
EP07704538A
Other languages
German (de)
French (fr)
Other versions
EP1989448B1 (en
Inventor
Robert Klaar
Paulo Cerveira
Ralph JÖRGENS
Michael Rombach
Albert Genster
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.)
Pierburg GmbH
Original Assignee
Pierburg GmbH
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
Priority claimed from DE200620002823 external-priority patent/DE202006002823U1/en
Priority claimed from DE200610029553 external-priority patent/DE102006029553A1/en
Application filed by Pierburg GmbH filed Critical Pierburg GmbH
Publication of EP1989448A1 publication Critical patent/EP1989448A1/en
Application granted granted Critical
Publication of EP1989448B1 publication Critical patent/EP1989448B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • 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
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
    • F04C11/005—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations of dissimilar working principle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/005—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids of dissimilar working principle
    • 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
    • F01M2001/0207—Pressure lubrication using lubricating pumps characterised by the type of pump
    • F01M2001/0238—Rotary pumps

Definitions

  • the invention relates to an oil pump and vacuum pump module for internal combustion engines
  • Internal combustion engines such as gasoline and diesel engines, have an oil pump for scrap conveying.
  • the oil pump is driven by an output shaft of the internal combustion engine, which is usually connected to the crankshaft.
  • the oil pump is arranged within the crankshaft housing or flanged to this.
  • Vacuum pumps are provided for operating vacuum units.
  • the drive of the vacuum pump also takes place via an output shaft of the internal combustion engine, which is usually connected to the camshaft.
  • Vacuum pumps are usually arranged in the region of the cylinder head and flanged to the engine housing in this area.
  • the first ⁇ lpurnpe has a mounting flange for connection to a second oil pump.
  • Another mounting flange must be provided on the Kurbeiwellengephaseuse for mounting the first oil pump. Mounting flanges are machined surfaces, thereby increasing manufacturing costs.
  • the invention has for its object to simplify the use of oil pumps and vacuum pumps in internal combustion engines and in particular to reduce their assembly costs and manufacturing and assembly costs.
  • a module which comprises both the oil pump and the vacuum pump.
  • the module comprises a first and a second pump housing or two housing halves.
  • the oil pump is arranged in each case one pump housing and the vacuum pump in the other.
  • a first pump housing which is preferably the ⁇ ipumpengeophuse, has two opposing openings. From these openings protrudes the drive shaft, wherein one of the drive shafts with a drive element, such as a gear, and the other end is connected to a conveying element, in particular the air conveying element of the vacuum pump.
  • the drive shaft is preferably formed integrally.
  • one of the two pump housings in particular the first pump housing, has a mounting surface.
  • This preferably extends radially to the axis of the drive shaft.
  • the second pump housing which is in particular the vacuum pump housing, can be mounted on this mounting surface.
  • the mounting surface is not used for mounting the second pump housing, but also for mounting the entire module, for example on the Kurbeiweltengeophuse. This has the advantage that a single Montagefiumblee is used for two Mondays. As a result, the manufacturing cost can be reduced because only one mounting surface must be edited.
  • the module can be arranged on the motor housing. It is particularly preferable to arrange the entire module within the motor housing, in particular within the crankshaft housing. For this purpose, in the crankshaft housing a particular cylindrically shaped recess may be provided into which the second pump housing is inserted. In the plane of the opening or recess or recess a corresponding Montagefikiee is provided, against which the mounting surface of the module according to the invention.
  • the module according to the invention can thus be extremely space-saving, in particular within the crankshaft housing, are arranged.
  • the second pump housing is preferably open only in the direction of the mounting surface.
  • the corresponding connections for the pump arranged in the second pump housing, in particular the vacuum pump are therefore formed by the first pump housing. This has the advantage that the second pump housing can be made extremely simple. It is particularly preferred to provide a pot-shaped housing, which is produced in particular from a sheet metal, as the second pump housing.
  • the oil pump and the vacuum pump are combined to form a module, it is possible in a simple manner to supply the vacuum pump with lubricant.
  • the two pumps are connected to each other in a preferred embodiment via a lubricant channel. This is promoted by the oil pump lubricant to the vacuum pump. In particular, due to the small distance between the two pumps lubrication of the vacuum pump is ensured in a simple manner.
  • Fig. 2 is a schematic side view of the module
  • Fig. 3 is a schematic longitudinal section of that shown in Fig. 2
  • the oil pump and vacuum pump module has a first housing 10, which is the oil pump housing in the illustrated embodiment.
  • a second cup-shaped housing 12 is formed as a vacuum pump housing.
  • a common drive shaft 14 is rotatably connected to an oil delivery element 16 and an air conveyor element 18.
  • the oil delivery element 16 cooperates with a second delivery element 20 of the oil pump, wherein the oil pump in the exemplary embodiment illustrated is a gerotor pump which conveys oil from an oil inlet 22 in the direction of an oil outlet 24.
  • the oil pump housing 10 has two openings 26, 27 from which protrude the two ends of the drive shaft.
  • the opening 26 is closed by a housing cover 28, wherein the drive shaft 14 is slidably mounted in a bearing 30 of the lid 38 and projects through the housing cover 28 therethrough.
  • a drive element 34 is arranged in the form of a sprocket and rotatably connected to the drive shaft 14.
  • the drive element 34 is connected to an engine output shaft, for example via another gear or a chain.
  • the oil pump 11 is thus arranged completely within the housing 10 closed by the housing cover 28.
  • the vacuum pump 13 which is in particular a rotary vane pump, is arranged substantially inside the cup-shaped housing 12, which is preferably a housing made of sheet metal.
  • the vacuum pump housing 2 has no connections of the vacuum pump.
  • the port 36 (FIG. 1) for the vacuum pump is disposed in the first housing 10, ie, in the oil pump housing.
  • a delivery chamber 38 arranged in the vacuum pump housing 12 is connected to the outlet 36 via a channel 40.
  • the first housing 10 has a Montagefikiee 42, which may be stepped if necessary.
  • the second housing 12 is secured by screws 44.
  • the entire module can be mounted on the remaining mounting surface on or in a crankcase.
  • the assembly in a crankshaft housing wherein the second pump housing 12 is inserted into a recess provided in the crankshaft housing recess, so that the remaining mounting surface 42 abuts a corresponding provided within the Kurbelweliengephaseuses mounting surface.
  • the module may then be mounted, for example, by means of screws inserted through apertures 46 ( Figure 1) by threading the threaded screws located on the mounting surface provided in the crankcase housing,
  • Another essential aspect of the invention is that in the mounting surface 42, the terminals 24 and 36 are provided for the oil pump 11 and the vacuum pump 13. This has the advantage that at the same time the connections are fluidly connected when mounting the module.
  • the mounting surface 42 is preferably aligned radially to the axis 48 of the drive shaft 14.
  • the mounting surface 42 furthermore represents the parting plane between the two housing halves 10, 12 or the first housing 10 and the second housing 12.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)

Abstract

An oil-pump and vacuum-pump module for internal combustion engines has an oil pump (11) and a vacuum pump (13). An oil conveying means (16) of the oil pump (11) and an air conveying means (18) of the vacuum pump (13) are arranged on a common drive shaft (14) and are therefore driven jointly via a single shaft. The pump module according to the invention preferably has a common mounting face, with the result that both pumps can be mounted via one mounting face.

Description

Ölpumpen- und Vakuumpurnpenmodtii Oil pump and vacuum pumping modes
Die Erfindung betrifft ein Ölpumpen- und Vakuumpumpenmodul für Brennkraftmaschinen,The invention relates to an oil pump and vacuum pump module for internal combustion engines,
Brennkraftmaschinen, wie Otto- und Dieselmotoren, weisen eine Ölpumpe zur Scbrniermir.tefförderung auf. Die Ölpumpe wird von einer Abtriebswelie der Brennkraftmaschine, die üblicherweise mit der Kurbelwelle verbunden ist, angetrieben. Die Öipumpe ist innerhalb des Kurbelwellengehäuses angeordnet oder an dieses angeflanscht.Internal combustion engines, such as gasoline and diesel engines, have an oil pump for scrap conveying. The oil pump is driven by an output shaft of the internal combustion engine, which is usually connected to the crankshaft. The oil pump is arranged within the crankshaft housing or flanged to this.
Zum Betreiben von Vakuumaggregaten sind Vakuumpumpen vorgesehen. Der Antrieb der Vakuumpumpe erfolgt ebenfalls über eine Abtriebswelle der Brennkraftmaschine, die üblicherweise mit der Nockenwelle verbunden ist. Vakuumpumpen sind üblicherweise im Bereich des Zylinderkopfs angeordnet und in diesem Bereich an das Motorgehäuse angeflanscht.Vacuum pumps are provided for operating vacuum units. The drive of the vacuum pump also takes place via an output shaft of the internal combustion engine, which is usually connected to the camshaft. Vacuum pumps are usually arranged in the region of the cylinder head and flanged to the engine housing in this area.
Aus DE 101 49 388 ist es bekannt, zwei Fluidpumpen, d.h. zwei Ölpumpen, miteinander zu koppeln. Hierbei ist eine erste Ölpumpe an das Kurbelwellengehäuse angeflanscht. Die Antriebswelle der Ölpumpe ist einerseits mit der Abtriebswelle der Brennkraftmaschine verbunden und weist andererseits eine Verbindungsmöglichkeit auf. Diese Verbindungs- oder Kopplungsmöglichkeit der Antriebswelle ist an dem dem Kurbelweliengehäuse _ ? —From DE 101 49 388 it is known to couple two fluid pumps, ie two oil pumps, to each other. Here, a first oil pump is flanged to the crankcase. The drive shaft of the oil pump is on the one hand connected to the output shaft of the internal combustion engine and on the other hand has a connection possibility. This connection or coupling possibility of the drive shaft is at the the crankcase housing _? -
abgewandten Ende der Antriebswelle vorgesehen. Über diese Kupplung kann eine weitere Ölpurnpe mit der ersten Ölpumpe verbunden werden. Hierdurch soll ein moduiarer Aufbau von Ölpumpen erzielt werden, so dass, je nach Anwendungsgebiet, die gewünschte Förderleistung durch Kombination zweier Standard-Ölpumpen erzielt werden kann. Hierbei ist es erforderlich, dass die erste Ölpurnpe einen Montageflansch zur Verbindung mit einer zweiten Ölpumpe aufweist. Ein weiterer Montageflansch muss an dem Kurbeiwellengehäuse zur Montage der ersten Ölpumpe vorgesehen sein. Bei Montageflanschen handelt es sich um bearbeitete Oberflächen, so dass hierdurch die Fertigungskosten erhöht werden.provided opposite end of the drive shaft. This coupling can connect another oil pump to the first oil pump. As a result, a moduiarer structure of oil pumps should be achieved, so that, depending on the application, the desired flow rate can be achieved by combining two standard oil pumps. In this case, it is necessary that the first Ölpurnpe has a mounting flange for connection to a second oil pump. Another mounting flange must be provided on the Kurbeiwellengehäuse for mounting the first oil pump. Mounting flanges are machined surfaces, thereby increasing manufacturing costs.
Der Erfindung liegt die Aufgabe zugrunde, den Einsatz von Ölpumpen sowie von Vakuumpumpen bei Brennkraftmaschinen zu vereinfachen und insbesondere deren Montageaufwand und Herstellungs- sowie Montagekosten zu verringern.The invention has for its object to simplify the use of oil pumps and vacuum pumps in internal combustion engines and in particular to reduce their assembly costs and manufacturing and assembly costs.
Die Lösung der Aufgabe erfolgt erfindungsgemäß durch die Merkmale des Anspruchs 1,The object is achieved according to the invention by the features of claim 1,
Erfindungsgemäß ist ein Modul geschaffen, das sowohl die Ölpumpe als auch die Vakuumpumpe umfasst. Durch die Zusammenfassung der Ölpumpe und der Vakuumpumpe zu einem gemeinsamen ggf. vormontierbaren Modul ist der Montageaufwand erheblich verringert. Auch ist es hierdurch möglich, die Gehäuseteiie, insbesondere die Gehäusehälften derart zu gestalten, dass sich diese ergänzen. Dies hat den Vorteil, dass keine zwei gesonderten Gehäuse hergestellt werden müssen. Besonders bevorzugt Ist es hierbei, dass ein rotierendes Ölfördereiement der Ölpumpe und ein rotierendes Luftförderelement der Vakuumpumpe auf einer gemeinsamen Antriebswelle, insbesondere drehfest, angeordnet sind. Beide Pumpen werden somit über eine gemeinsame Welle angetrieben. Dies hat den Vorteil, dass eine Antriebsweile entfällt und insbesondere nur die gemeinsame Antriebswelle gelagert werden muss. Vorzugsweise umfasst das Modul ein erstes und ein zweites Pumpengehäuse bzw. zwei Gehäusehälften. Hierbei ist es bevorzugt, dass in jeweils einem Pumpengehäuse die Ölpumpe und in dem anderen die Vakuumpumpe angeordnet ist. Ein erstes Pumpengehäuse, bei dem es sich vorzugsweise um das Öipumpengehäuse handelt, weist zwei einander gegenüberliegende Öffnungen auf. Aus diesen Öffnungen ragt die Antriebswelle, wobei eine der Antriebswellen mit einem AntriebseJement, wie einem Zahnrad, und das andere Ende mit einem Förderelement, insbesondere dem Luftförderelement der Vakuumpumpe verbunden ist. Hierbei ist die Antriebswelle vorzugsweise einstückig ausgebildet.According to the invention, a module is provided which comprises both the oil pump and the vacuum pump. By combining the oil pump and the vacuum pump to a common, possibly preassembled module assembly costs are significantly reduced. This also makes it possible to design the housing part, in particular the housing halves, in such a way that they complement one another. This has the advantage that no two separate housing must be made. It is particularly preferred in this case that a rotating Ölfördereiement the oil pump and a rotating air conveying element of the vacuum pump on a common drive shaft, in particular rotationally fixed, are arranged. Both pumps are thus driven by a common shaft. This has the advantage that a driving time is eliminated and in particular only the common drive shaft must be stored. Preferably, the module comprises a first and a second pump housing or two housing halves. In this case, it is preferred that the oil pump is arranged in each case one pump housing and the vacuum pump in the other. A first pump housing, which is preferably the Öipumpengehäuse, has two opposing openings. From these openings protrudes the drive shaft, wherein one of the drive shafts with a drive element, such as a gear, and the other end is connected to a conveying element, in particular the air conveying element of the vacuum pump. Here, the drive shaft is preferably formed integrally.
In besonders bevorzugter Ausfύhrungsform weist eines der beiden Pumpengehäuse, insbesondere das erste Pumpengehäuse, eine Montagefläche auf. Diese verläuft vorzugsweise radial zur Achse der Antriebswelle. Auf diese Montagefläche ist vorzugsweise das zweite Pumpengehäuse, bei dem es sich insbesondere um das Vakuumpumpengehäuse handelt, montierbar. Besonders bevorzugt ist es, dass die Montagefläche nicht zur Montage des zweiten Pumpengehäuses, sondern auch zur Montage des gesamten Moduls, beispielsweise an dem Kurbeiweltengehäuse, dient. Dies hat den Vorteil, dass eine einzige Montagefiäche für zwei Montagen genutzt wird. Hierdurch können die Herstellungskosten verringert werden, da nur eine Montagefläche bearbeitet werden muss.In a particularly preferred embodiment, one of the two pump housings, in particular the first pump housing, has a mounting surface. This preferably extends radially to the axis of the drive shaft. Preferably, the second pump housing, which is in particular the vacuum pump housing, can be mounted on this mounting surface. It is particularly preferred that the mounting surface is not used for mounting the second pump housing, but also for mounting the entire module, for example on the Kurbeiweltengehäuse. This has the advantage that a single Montagefiäche is used for two Mondays. As a result, the manufacturing cost can be reduced because only one mounting surface must be edited.
Das Modul kann an dem Motorgehäuse angeordnet sein. Besonders bevorzugt ist es, das gesamte Modul innerhalb des Motorgehäuses, insbesondere innerhalb des Kurbelwellengehäuses, anzuordnen. Hierzu kann in dem Kurbelwellengehäuse eine insbesondere zylindrisch ausgebildete Vertiefung vorgesehen sein, in die das zweite Pumpengehäuse gesteckt wird. In der Ebene der Öffnung oder Vertiefung bzw. Ausnehmung ist eine entsprechende Montagefiäche vorgesehen, an der die Montagefläche des erfindungsgemäßen Moduls anliegt. Das erfindungsgemäße Modul kann somit äußerst platzsparend, insbesondere innerhalb des Kurbelwellengehäuses, angeordnet werden. Vorzugsweise ist das zweite Pumpengehäuse ausschließlich in Richtung der Montagefläche offen^ Die entsprechenden Anschlüsse für die in dem zweiten Pumpengehäuse angeordnete Pumpe, insbesondere die Vakuumpumpe, sind somit durch das erste Pumpengehäuse ausgebildet. Dies hat den Vorteil, dass das zweite Pumpengehäuse äußerst einfach ausgebildet sein kann. Besonders bevorzugt ist es, als zweites Pumpengehäuse ein topfförmiges Gehäuse, das insbesondere aus einem Metallblech hergestellt ist, vorzusehen.The module can be arranged on the motor housing. It is particularly preferable to arrange the entire module within the motor housing, in particular within the crankshaft housing. For this purpose, in the crankshaft housing a particular cylindrically shaped recess may be provided into which the second pump housing is inserted. In the plane of the opening or recess or recess a corresponding Montagefiäche is provided, against which the mounting surface of the module according to the invention. The module according to the invention can thus be extremely space-saving, in particular within the crankshaft housing, are arranged. The second pump housing is preferably open only in the direction of the mounting surface. The corresponding connections for the pump arranged in the second pump housing, in particular the vacuum pump, are therefore formed by the first pump housing. This has the advantage that the second pump housing can be made extremely simple. It is particularly preferred to provide a pot-shaped housing, which is produced in particular from a sheet metal, as the second pump housing.
Da erfindungsgemäß die Ölpumpe und die Vakuumpumpe zu einem Modul zusammengefasst sind, ist es auf einfache Weise möglich, die Vakuumpumpe mit Schmiermittel zu versorgen. Hierzu sind die beiden Pumpen in bevorzugter Ausfuhrungsform über einen Schmiermittelkanal miteinander verbunden. Durch diesen wird von der Öipumpe Schmiermittel zu der Vakuumpumpe gefördert. Insbesondere aufgrund des geringen Abstands der beiden Pumpen ist auf einfache Weise eine Schmierung der Vakuumpumpe sichergestellt.Since according to the invention the oil pump and the vacuum pump are combined to form a module, it is possible in a simple manner to supply the vacuum pump with lubricant. For this purpose, the two pumps are connected to each other in a preferred embodiment via a lubricant channel. This is promoted by the oil pump lubricant to the vacuum pump. In particular, due to the small distance between the two pumps lubrication of the vacuum pump is ensured in a simple manner.
Nachfolgend wird die Erfindung anhand einer bevorzugten Ausfuhrungsform unter Bezugnahme auf die anliegenden Zeichnungen näher erläutert.The invention will be explained in more detail with reference to a preferred embodiment with reference to the accompanying drawings.
Es zeigen :Show it :
Fig. 1 eine schematische perspektivische Ansicht des erfindungsgemäßen Moduls,1 is a schematic perspective view of the module according to the invention,
Fig. 2 eine schematische Seitenansicht des Moduls, undFig. 2 is a schematic side view of the module, and
Fig. 3 einen schematischen Längsschnitt des in Fig. 2 dargestelltenFig. 3 is a schematic longitudinal section of that shown in Fig. 2
Moduls. Das erfindungsgemäße Ölpumpen- und Vakuumpumpenmodul weist ein erstes Gehäuse 10 auf, bei dem es sich im dargestellten Ausfuhrungsbeispiel um das Ölpumpengehäuse handelt. Ein zweites, topfförmig ausgebildetes Gehäuse 12 ist ais Vakuumpumpengehäuse ausgebildet. Eine gemeinsame Antriebswelle 14 ist drehfest mit einem Ölförderelement 16 sowie einem Luftförderelement 18 verbunden. Das Ölförderelement 16 wirkt mit einem zweiten Förderelement 20 der Ölpumpe zusammen, wobei es sich bei der Ölpumpe im dargestellten Ausfuhrungsbeispϊei um eine Gerotorpumpe handelt, die Öl von einem Öleinlass 22 in Richtung eines Ölauslasses 24 fördert.Module. The oil pump and vacuum pump module according to the invention has a first housing 10, which is the oil pump housing in the illustrated embodiment. A second cup-shaped housing 12 is formed as a vacuum pump housing. A common drive shaft 14 is rotatably connected to an oil delivery element 16 and an air conveyor element 18. The oil delivery element 16 cooperates with a second delivery element 20 of the oil pump, wherein the oil pump in the exemplary embodiment illustrated is a gerotor pump which conveys oil from an oil inlet 22 in the direction of an oil outlet 24.
Das Ölpumpengehäuse 10 weist zwei Öffnungen 26, 27 auf, aus denen die beiden Enden der Antriebswelle hervorstehen. Die Öffnung 26 ist durch einen Gehäusedeckel 28 verschlossen, wobei die Antriebswelle 14 in einem Lager 30 des Deckels 38 gleitgelagert ist und durch den Gehäusedeckel 28 hindurch ragt. Auf dem aus dem Gehäusedeckel 28 herausstehenden Ende 32 der Antriebswelle 14 ist ein Antriebselement 34 in Form eines Kettenrads angeordnet und drehfest mit der Antriebswelle 14 verbunden. Das Antriebseiement 34 ist mit einer Motorabtriebswelle, beispielsweise über ein weiteres Zahnrad oder eine Kette, verbunden.The oil pump housing 10 has two openings 26, 27 from which protrude the two ends of the drive shaft. The opening 26 is closed by a housing cover 28, wherein the drive shaft 14 is slidably mounted in a bearing 30 of the lid 38 and projects through the housing cover 28 therethrough. On the protruding from the housing cover 28 end 32 of the drive shaft 14, a drive element 34 is arranged in the form of a sprocket and rotatably connected to the drive shaft 14. The drive element 34 is connected to an engine output shaft, for example via another gear or a chain.
Die Ölpumpe 11 ist somit vollständig innerhalb des von dem Gehäusedeckel 28 verschlossenen Gehäuses 10 angeordnet.The oil pump 11 is thus arranged completely within the housing 10 closed by the housing cover 28.
Die Vakuumpumpe 13, bei der es sich insbesondere um eine Drehschieberpumpe handelt, ist im Wesentlichen innerhalb des topfförmigen Gehäuses 12, bei dem es sich vorzugsweise um ein Gehäuse aus Metallblech handelt, angeordnet. In der dargestellten Ausfuhrungsform weist das Vakuumpumpengehäuse 2 keine Anschlüsse der Vakuumpumpe auf. Der Anschluss 36 (Fig„ 1) für die Vakuumpumpe ist in dem ersten Gehäuse 10, d.h. in dem Ölpumpengehäuse angeordnet. Ein in dem Vakuumpumpengehäuse 12 angeordneter Förderraum 38 ist über einen Kanal 40 mit dem Auslass 36 verbunden. Das erste Gehäuse 10 weist eine Montagefiäche 42 auf, die ggf. abgestuft sein kann. An der Montagefläche 42 ist das zweite Gehäuse 12 über Schrauben 44 befestigt. Da die Montagefiäche 42 erfindungsgemäß über das zweite Gehäuse 12 radial hinausragt, kann das gesamte Modul über die verbleibende Montagefläche an oder in einem Kurbelwellengehäuse montiert werden. Bevorzugt ist die Montage in einern Kurbelwellengehäuse, wobei das zweite Pumpengehäuse 12 in eine in dem Kurbelwellengehäuse vorgesehene Ausnehmung gesteckt wird, so dass die verbleibende Montagefläche 42 an einer entsprechenden innerhalb des Kurbelweliengehäuses vorgesehenen Montagefläche anliegt. Das Modul kann sodann beispielsweise mittels Schrauben, die durch Öffnungen 46 (Fig. 1) gesteckt werden, montiert werden, indem die Schrauben in Gewinde, das an der in dem Kurbeϊweüengehäuse vorgesehenen Montagefläche angeordnet ist, befestigt werden,The vacuum pump 13, which is in particular a rotary vane pump, is arranged substantially inside the cup-shaped housing 12, which is preferably a housing made of sheet metal. In the illustrated embodiment, the vacuum pump housing 2 has no connections of the vacuum pump. The port 36 (FIG. 1) for the vacuum pump is disposed in the first housing 10, ie, in the oil pump housing. A delivery chamber 38 arranged in the vacuum pump housing 12 is connected to the outlet 36 via a channel 40. The first housing 10 has a Montagefiäche 42, which may be stepped if necessary. On the mounting surface 42, the second housing 12 is secured by screws 44. Since the Montagefiäche 42 according to the invention extends radially beyond the second housing 12, the entire module can be mounted on the remaining mounting surface on or in a crankcase. Preferably, the assembly in a crankshaft housing, wherein the second pump housing 12 is inserted into a recess provided in the crankshaft housing recess, so that the remaining mounting surface 42 abuts a corresponding provided within the Kurbelweliengehäuses mounting surface. The module may then be mounted, for example, by means of screws inserted through apertures 46 (Figure 1) by threading the threaded screws located on the mounting surface provided in the crankcase housing,
Ein weiterer wesentlicher Aspekt der Erfindung besteht darin, dass in der Montagefläche 42 die Anschlüsse 24 und 36 für die Ölpumpe 11 bzw. die Vakuumpumpe 13 vorgesehen sind. Dies hat den Vorteil, dass bei Montage des Moduls gleichzeitig die Anschlüsse fluidisch verbunden werden.Another essential aspect of the invention is that in the mounting surface 42, the terminals 24 and 36 are provided for the oil pump 11 and the vacuum pump 13. This has the advantage that at the same time the connections are fluidly connected when mounting the module.
Um die Montage des Moduls, insbesondere innerhalb des Kurbelweilengehäuses, zu vereinfachen, ist die Montagefläche 42 vorzugsweise radial zur Achse 48 der Antriebswelle 14 ausgerichtet.In order to simplify the assembly of the module, in particular within the crankcase, the mounting surface 42 is preferably aligned radially to the axis 48 of the drive shaft 14.
Wie insbesondere aus Fig. 3 ersichtlich ist, stellt die Montagefläche 42 ferner die Trennebene zwischen den beiden Gehäusehälften 10, 12 bzw. dem ersten Gehäuse 10 und dem zweiten Gehäuse 12 dar.As can be seen in particular from FIG. 3, the mounting surface 42 furthermore represents the parting plane between the two housing halves 10, 12 or the first housing 10 and the second housing 12.
Anstelle des Vorsehens eines insbesondere aus Metallblech hergestellten topfförrnigen Gehäuses 18 ist es auch möglich, ein gemeinsames Gehäuse für beide Pumpen vorzusehen- Dieses weist sodann vorzugsweise auf der in Fig . 3 linken Seite einen zweiten Deckel auf. Instead of providing a cup-shaped housing 18, in particular made of sheet metal, it is also possible to use a common housing for Both pumps provide this then preferably on the in FIG. 3 left side on a second cover.

Claims

Patentansprüche claims
, Ölpumpen- und Vakuumpumpenmodul für Brennkraftmaschinen, mit, Oil pump and vacuum pump module for internal combustion engines, with
einer Ölpumpe (11) mit einem rotierenden Ölförderelement (16), undan oil pump (11) with a rotating oil delivery element (16), and
einer Vakuumpumpe (13) mit einem rotierenden Luftförderelement (18),a vacuum pump (13) having a rotating air conveying element (18),
d a d u r c h g e k e n n z e i c h n e t, dassd a d u r c h e c e n c i n e s that
das Luftförderelement (18) der Vakuumpumpe (13) und das Ölförderelement (16) der Ölpumpe (11) mit einer gemeinsamen Antriebswelle (14) verbunden sind,the air delivery element (18) of the vacuum pump (13) and the oil delivery element (16) of the oil pump (11) are connected to a common drive shaft (14),
, Ölpumpen- und Vakuumpumpenmodul nach Anspruch 1, dadurch gekennzeichnet, dass die Antriebswelle (14) aus zwei einander gegenüberliegenden Öffnungen (26, 27) eines ersten Pumpengehäuses (10), insbesondere des Ölpumpengehäuses, ragt, wobei ein Ende (32) mit einem Antriebselement (34) und das andere Ende mit einem der Förderelemente (16, 18), insbesondere dem Luftförderelement ( 18), verbunden ist., Oil pump and vacuum pump module according to claim 1, characterized in that the drive shaft (14) of two opposing openings (26, 27) of a first pump housing (10), in particular of the oil pump housing, projects, wherein one end (32) with a drive element (34) and the other end with one of the conveying elements (16, 18), in particular the air conveying element (18) is connected.
, Ölpumpen- und Vakuumpumpenmodul nach Anspruch 2, dadurch gekennzeichnet, dass das erste Pumpengehäuse (10) an dem antriebsseitigen Ende (32) mit einem Gehäusedeckel (28) verschlossen ist. _ Q _, Oil pump and vacuum pump module according to claim 2, characterized in that the first pump housing (10) is closed at the drive-side end (32) with a housing cover (28). _Q_
4- Ölpumpen- und Vakuumpumpeπmodul nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass das Pumpengehäuse (10) eine, insbesondere radial zur Antriebsachse (48) verlaufende, Montagefläche (42) aufweist.4- Ölpumpen- and Vakuumpumpeπmodul according to claim 2 or 3, characterized in that the pump housing (10) has a, in particular radially to the drive axis (48) extending, mounting surface (42).
5, Ölpumpen- und Vakuurnpumpeπmodul nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, dass das erste Gehäuse (10) mit einem zweiten Pumpengehäuse (12), insbesondere dem Vakuumpumpengehäuse, verbunden ist, wobei das zweite Pumpengehäuse (12) insbesondere über die Montagefläche (42) mit dem ersten Pumpengehäuse (10) verbunden ist.5, oil pump and Vakuurnpumpeπmodul according to one of claims 2 to 4, characterized in that the first housing (10) with a second pump housing (12), in particular the vacuum pump housing, is connected, wherein the second pump housing (12) in particular on the mounting surface (42) is connected to the first pump housing (10).
6, Ölpumpen- und Vakuumpumpenmodul nach Anspruch 4 oder 5, dadurch gekennzeichnet, dass die Montagefläche (42) derart ausgebildet ist, dass sie zur Montage des Moduls an, insbesondere in einem Motorgehäuse geeignet ist.6, oil pump and vacuum pump module according to claim 4 or 5, characterized in that the mounting surface (42) is designed such that it is suitable for mounting the module, in particular in a motor housing.
7, Ölpumpen- und Vakuumpumpenmodul nach einem der Ansprüche 4 bis7, oil pump and vacuum pump module according to one of claims 4 to
6, dadurch gekennzeichnet, dass die Montagefläche (42) die Trennebene zwischen den beiden Gehäusen (10, 12) ausbildet,6, characterized in that the mounting surface (42) forms the parting plane between the two housings (10, 12),
8„ Öfpumpeπ- und Vakuumpumpenmodul nach einem der Ansprüche 5 bis8 "Öfpumpeπ- and vacuum pump module according to one of claims 5 to
7, dadurch gekennzeichnet, dass das zweite Gehäuse (12) topfförmig ausgebildet ist und vorzugsweise aus Metallblech hergestellt ist.7, characterized in that the second housing (12) is cup-shaped and is preferably made of sheet metal.
9. Ölpumpen- und Vakuumpumpenmodul nach einem der Ansprüche 5 bis9. Oil pump and vacuum pump module according to one of claims 5 to
8, dadurch gekennzeichnet, dass da zweite Pumpengehäuse (12) ausschließlich in Richtung der Montagefläche (42) offen ist.8, characterized in that da second pump housing (12) exclusively in the direction of the mounting surface (42) is open.
10. Ölpumpen- und Vakuumpumpenmodul nach einem der Ansprüche 5 bis10. Oil pump and vacuum pump module according to one of claims 5 to
9, dadurch gekennzeichnet, dass die Pumpenanschlusse (36) für die in dem zweiten Pumpengehäuse (12) angeordnete Pumpe, insbesondere die Vakuumpumpe, am ersten Pumpengehäuse (10) vorgesehen sind. 9, characterized in that the pump connections (36) for the pump arranged in the second pump housing (12), in particular the vacuum pump, are provided on the first pump housing (10).
EP07704538A 2006-02-18 2007-02-13 Oil-pump and vacuum-pump module Active EP1989448B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE200620002823 DE202006002823U1 (en) 2006-02-18 2006-02-18 Oil and vacuum pump module for e.g. diesel internal combustion engine, has central common drive shaft, oil and vacuum pump bodies, and oil pump pressure connection and vacuum pump connection on mounting surface in crankcase of engine
DE200610029553 DE102006029553A1 (en) 2006-06-26 2006-06-26 Oil pump and vacuum pump module for internal combustion engines, has oil and vacuum pump and air conveying element of vacuum pump and oil conveying element of oil pump are connected with common drive shaft
PCT/EP2007/051362 WO2007093581A1 (en) 2006-02-18 2007-02-13 Oil-pump and vacuum-pump module

Publications (2)

Publication Number Publication Date
EP1989448A1 true EP1989448A1 (en) 2008-11-12
EP1989448B1 EP1989448B1 (en) 2009-12-09

Family

ID=37997622

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07704538A Active EP1989448B1 (en) 2006-02-18 2007-02-13 Oil-pump and vacuum-pump module

Country Status (5)

Country Link
EP (1) EP1989448B1 (en)
AT (1) ATE451553T1 (en)
DE (1) DE502007002263D1 (en)
ES (1) ES2336617T3 (en)
WO (1) WO2007093581A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012103888A1 (en) * 2012-05-03 2013-11-21 Zf Lenksysteme Gmbh Displacement pump for conveying of pressurizing agent to consumer, particularly vane-type or roller pump for transmission of motor vehicle, has pump packet with rotor, cam ring and multiple working slides
DE102012217071A1 (en) * 2012-09-21 2014-03-27 Robert Bosch Gmbh pump assembly
WO2018137045A1 (en) 2017-01-30 2018-08-02 Litens Automotive Partnership Clutched vacuum pump system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8105492U1 (en) * 1981-02-27 1981-08-20 Elektro-Mechanik Gmbh, 5963 Wenden PNEUMOHYDRAULIC SUPPLY UNIT WITH A POWER-GENERATING ENGINE
US4497618A (en) * 1983-09-12 1985-02-05 General Motors Corporation Combined vacuum pump and power steering pump assembly
JPS61222857A (en) * 1985-03-28 1986-10-03 Nippon Denso Co Ltd Power steering pump provided with vacuum pump
EP1613862B1 (en) * 2003-04-16 2010-11-17 O.M.P. Officine Mazzocco Pagnoni S.r.l. Oil and vacuum pumps group for a motor vehicle engine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007093581A1 *

Also Published As

Publication number Publication date
WO2007093581A1 (en) 2007-08-23
ES2336617T3 (en) 2010-04-14
ATE451553T1 (en) 2009-12-15
EP1989448B1 (en) 2009-12-09
DE502007002263D1 (en) 2010-01-21

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