EP2414683B1 - Pump for a motor vehicle internal combustion engine, and motor vehicle internal combustion engine having a pump - Google Patents

Pump for a motor vehicle internal combustion engine, and motor vehicle internal combustion engine having a pump Download PDF

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Publication number
EP2414683B1
EP2414683B1 EP10706946.0A EP10706946A EP2414683B1 EP 2414683 B1 EP2414683 B1 EP 2414683B1 EP 10706946 A EP10706946 A EP 10706946A EP 2414683 B1 EP2414683 B1 EP 2414683B1
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EP
European Patent Office
Prior art keywords
pump
internal combustion
combustion engine
housing
pump casing
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.)
Active
Application number
EP10706946.0A
Other languages
German (de)
French (fr)
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EP2414683A2 (en
Inventor
Christian Schimke
Alois Haberl
Hubert Rother
Roland Treffler
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Bayerische Motoren Werke AG
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Bayerische Motoren Werke AG
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Publication of EP2414683A2 publication Critical patent/EP2414683A2/en
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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
    • 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
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F7/0065—Shape of casings for other machine parts and purposes, e.g. utilisation purposes, safety
    • F02F7/0068—Adaptations for other accessories
    • 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
    • F04C18/3441—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 the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
    • 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
    • F04C2230/00—Manufacture
    • F04C2230/60—Assembly methods
    • F04C2230/603—Centering; Aligning
    • 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
    • F04C2230/00—Manufacture
    • F04C2230/60—Assembly methods
    • F04C2230/604—Mounting devices for pumps or compressors
    • 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
    • F04C2240/00—Components
    • F04C2240/30—Casings or housings

Definitions

  • the invention relates to a pump for a motor vehicle internal combustion engine, comprising a connectable to a camshaft of the internal combustion engine rotor with axis and connectable to a housing of the internal combustion engine pump housing having a first pump housing portion and a second pump housing portion, wherein the second pump housing portion for entry through an opening portion of Internal combustion engine housing is determined in the engine housing and a motor vehicle internal combustion engine having an internal combustion engine housing comprising a cylinder head and a cylinder head cover, wherein between the cylinder head and cylinder head cover a parting plane is formed, at least one camshaft and a pump.
  • the object is achieved with a pump having the features of claim 1 and with a motor vehicle internal combustion engine having the features of claim 3.
  • the position of the pump rotor axis to the camshaft axis changes according to the invention. This creates the opportunity to adapt to different space situations, so that the pump can be used with a variety of vehicle or engine types. In particular, there are also freedoms in the geometric design of the outlet channels to reduce power consumption. With the invention, a radial outlet on the pump is made possible.
  • the axis of the pump rotor has an offset of s / 5 to 4s / 5, in particular of approximately s / 3, to the center of the cross-sectional area. It has been found that with such an offset under the given boundary conditions for the pump working space and the position of the pump rotor with respect to the pump housing a best possible flexibilization of the pump can be achieved.
  • At least one attachment point comprises at least one fitting element and the attachment points are arranged substantially below the axis of the pump rotor.
  • at least one attachment point comprises at least one fitting element, an exact positioning of the pump with respect to the engine housing can be achieved with this at least one attachment point, so that positioning by means of the inlet geometry of the pump housing in the engine housing is unnecessary.
  • a significant simplification in the manufacture of the pump housing and the inlet geometry is achieved on the engine housing.
  • the arrangement of the attachment points substantially below the axis of the pump rotor also supports a simplified production, since, for example, the attachment points can be provided substantially in the cylinder head and a division of the attachment points to several components, such as cylinder head and cylinder head cover can be avoided.
  • space advantages result by the attachment points can be placed in areas that are less critical space.
  • the pump according to the invention is further characterized in that the pump housing is stiffened rib-like between its first pump housing portion and the attachment points.
  • the pump housing is stiffened rib-like between its first pump housing portion and the attachment points.
  • the offset direction of the axis of the pump rotor, starting from the middle of the cross-sectional area of the second pump housing portion, is directed opposite to the pump outlet. This results in a particularly large space for the radial outlet of the pump.
  • a positioning of the pump by means of the outer contour of the second pump housing region in conjunction with the inner contour of the opening region of the engine housing can be dispensed with, so that the manufacturing outlay is significantly reduced and the flexibility is increased.
  • a seal is arranged in the opening region of the engine housing between the pump housing and the engine housing. Forming errors of the outer contour of the second pump housing region and / or the inner contour of the opening region of the engine housing as well as positional errors between the pump housing and the opening region of the engine housing can also be compensated by means of this seal.
  • FIG. 1a shows a further unspecified running motor vehicle internal combustion engine with overhead camshafts and a camshaft driven pump 108 in side view, a rear view of the pump 108 is in FIG. 1b shown.
  • pump 108 is shown mounted to an engine housing 102.
  • FIG. 2 shows the pump 208 in a non-installed state without internal combustion engine.
  • the pump 108, 208 serves to generate negative pressure for ancillary components of the internal combustion engine or for the motor vehicle and is for example a single-wing vacuum pump with a cup-shaped stator with konchoidenförmiger inner contour in which a rotor is rotatably mounted.
  • a wing is displaceably mounted orthogonally to its axis of rotation a, b, which rests with its wing tips on a working space delimiting peripheral surface and thereby dividing the working space into a suction chamber and a pressure chamber.
  • the suction space is provided with an inlet opening and the pressure space is provided with an outlet opening, wherein the outlet opening is arranged in the circumferential area surrounding the pressure space.
  • the pump 108, 208 may also be a vane pump, an internally or externally toothed gear pump, a reciprocating pump or an internally or externally pressurized radial piston pump.
  • the pump 108, 208 is lubricated for lubrication purposes starting from the camshaft, for example by means of oil transfer tubes.
  • the internal combustion engine comprises an internal combustion engine housing 102 with a cylinder head 104 and a cylinder head cover 106, wherein camshafts for actuating intake and exhaust valves of the internal combustion engine are mounted in the cylinder head 104.
  • camshafts for actuating intake and exhaust valves of the internal combustion engine are mounted in the cylinder head 104.
  • only a center line 126 of a camshaft is shown in simplified form.
  • the pump 108, 208 includes a pump housing 109, 209 having a first housing portion 110, 210 which substantially encloses the pump working space, and a second housing portion 112, 212 which enters the opening portion 122 of the engine housing 102 therein.
  • the pump housing portion 112, 212 in the present case has a cylindrical shape.
  • the cross-sectional area A of the pump housing portion 112 is correspondingly circular, the center of the cross-sectional area A is denoted by M.
  • the pump has a radially directed outlet 132, 232 and an inlet 230.
  • the opening 122 of the engine housing 102 is formed correspondingly round, wherein the entry of the pump housing 109, 209 with its portion 112, 212 through the opening portion 122 of the engine housing 102 into the engine housing 102 is radially backlash.
  • a seal 124 is provided for sealing between the engine housing 102 and the pump housing 109, 112, 209, 212.
  • This seal 124 is in the present case designed as a substantially radially acting seal, however, in another embodiment, it may additionally or alternatively seal in the axial direction. With the seal 124 and tolerances can be compensated.
  • the attachment points 114, 115, 214, 215 are on the pump housing 109, 209 below the Pump shaft axis a, b provided, wherein the pump housing 109, 209 for stiffening ribs 118, 218 between the attachment points 114, 115, 214, 215 and the first pump housing portion 110, 210 has.
  • a different number of attachment points may be provided and these may be arranged differently.
  • fastening points comprise fitting elements 116, 216.
  • two fastening points 114, 214 are provided with dowel sleeves or dowel pins.
  • the inventive pump 108, 208 can be used with a variety of engine types regardless of their geometric constraints, such as location of the separation plane 105 between the cylinder head 104 and cylinder head cover 106 or position of the camshaft.
  • the pump 108, 208 can be used both with internal combustion engines having a variable valve train, that is a valve train in which the stroke of the valves is variable, as well as with internal combustion engines having a conventional valve train.
  • the pump 108, 208 may be used regardless of the arrangement of a support bracket. The pump 108, 208 is therefore particularly flexible used. Only the Attachment points 114, 115, 214, 215 are to be provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Description

Die Erfindung betrifft eine Pumpe für eine Kraftfahrzeug-Brennkraftmaschine, umfassend einen mit einer Nockenwelle der Brennkraftmaschine verbindbaren Rotor mit Achse und ein mit einem Gehäuse der Brennkraftmaschine verbindbares Pumpengehäuse mit einem ersten Pumpengehäusebereich und einem zweiten Pumpengehäusebereich, wobei der zweite Pumpengehäusebereich zum Eintritt durch einen Öffnungsbereich des Brennkraftmaschinengehäuses in das Brennkraftmaschinengehäuse bestimmt ist sowie eine Kraftfahrzeug-Brennkraftmaschine mit einem Brennkraftmaschinengehäuse umfassend einen Zylinderkopf und eine Zylinderkopfhaube, wobei zwischen Zylinderkopf und Zylinderkopfhaube eine Trennebene gebildet ist, wenigstens einer Nockenwelle und einer Pumpe.The invention relates to a pump for a motor vehicle internal combustion engine, comprising a connectable to a camshaft of the internal combustion engine rotor with axis and connectable to a housing of the internal combustion engine pump housing having a first pump housing portion and a second pump housing portion, wherein the second pump housing portion for entry through an opening portion of Internal combustion engine housing is determined in the engine housing and a motor vehicle internal combustion engine having an internal combustion engine housing comprising a cylinder head and a cylinder head cover, wherein between the cylinder head and cylinder head cover a parting plane is formed, at least one camshaft and a pump.

Der erste Pumpengehäusebereich umfasst im Wesentlichen den Pumpenarbeitsraum und der zweiten Pumpengehäusebereich den Bereich des Pumpengehäuses, der in einem Öffnungsbereich des Brennkraftmaschinengehäuses in das Brennkraftmaschinengehäuse eintritt.The first pump housing portion essentially comprises the pump working space and the second pump housing portion the area of the pump housing which enters into the engine housing in an opening region of the engine housing.

Die Achse des Pumpenrotors ist bei den bekannten Anordnungen, wie sie beispielsweise aus der DE 199 61 317 C1 hervorgeht, zur Querschnittsebene des zweiten Pumpengehäusebereichs in seinem Eintrittsbereich in das Brennkraftmaschinengehäuse mittig angeordnet. Insbesondere sind bei einer kreisförmigen Querschnittsfläche des zweiten Pumpengehäusebereichs in seinem Eintrittsbereich in das Brennkraftmaschinengehäuse die Achsen dieses Pumpengehäusebereichs und des Pumpenrotors koaxial. Dabei dient üblicherweise die Außenkontur des zweiten Pumpengehäusebereichs zusammen mit einer korrespondierenden Innenkontur des Öffnungsbereichs des Brennkraftmaschinengehäuses zur lagegenauen Festlegung der Pumpen, insbesondere der Achse des Pumpenrotors, bezüglich einer antreibenden Nockenwelle.The axis of the pump rotor is in the known arrangements, as for example from the DE 199 61 317 C1 shows, arranged centrally to the cross-sectional plane of the second pump housing portion in its inlet region into the engine housing. In particular, in a circular cross-sectional area of the second pump housing portion in its entrance region into the engine housing, the axes of this pump housing portion and the pump rotor are coaxial. In this case, the outer contour of the second pump housing region usually serves together with a corresponding inner contour of the opening region of the Internal combustion engine housing for positionally fixing the pumps, in particular the axis of the pump rotor, with respect to a driving camshaft.

Aufgrund dessen ist die Einbaulage der Pumpe stets abhängig von der Position der Nockenwellen, was unter Bauraumgesichtspunkten eine starke Einschränkung bedeutet. Außerdem bestehen an der Pumpe selbst nur geringe Möglichkeiten, Position und/oder Ausrichtung eines radialen Ein- oder Auslasses zu flexibilisieren.Because of this, the installation position of the pump is always dependent on the position of the camshafts, which means a considerable restriction under installation space considerations. In addition, there are only slight possibilities on the pump to make the position and / or orientation of a radial inlet or outlet more flexible.

Die DE 37 34 573 A zeigt eine Flügelzellenpumpe zur Erzeugung eines Vakuums, die an das Motorgehäuse eines Fahrzeugs angeflanscht wird, wobei ein Lagergehäuse der Pumpe in ein Kurbelgehäuse des Motorgehäuses ragt und darin zentriert ist.The DE 37 34 573 A shows a vane pump for generating a vacuum, which is flanged to the engine housing of a vehicle, wherein a bearing housing of the pump projects into a crankcase of the motor housing and is centered therein.

Aus der DE 36 37 229 A1 ist eine Baueinheit einer Hydraulikpumpe und ener Vakuumpumpe bekannt, die dadurch gebildet wird, dass der Rotor der Vakuumpumpe fliegend gelagert ist und dass zwischen den beiden Gleitlagern der Vakuumpumpe die Hydraulikpumpe sitzt.From the DE 36 37 229 A1 is a structural unit of a hydraulic pump and a vacuum pump is known, which is formed by the fact that the rotor of the vacuum pump is cantilevered and that sits between the two sliding bearings of the vacuum pump, the hydraulic pump.

Die 35 17 002 A1 zeigt eine wassergekühlte Brennkraftmaschine, bei der die Wasserpumpe direkt mit der Nockenwelle der Brennkraftmaschine verbunden ist und durch diese angetrieben wird.The 35 17 002 A1 shows a water-cooled internal combustion engine, in which the water pump is connected directly to the camshaft of the internal combustion engine and is driven by this.

Der Erfindung liegt daher die Aufgabe zugrunde, eine eingangs genannte Pumpe und eine eingangs genannte Kraftfahrzeug-Brennkraftmaschine bereit zu stellen, bei der pumpenseitig die Möglichkeit besteht, Position und/oder Ausrichtung eines radialen Ein- oder Auslasses zu flexibilisieren, sodass die Pumpe leicht an unterschiedliche Bauraumgegebenheiten und/oder Fahrzeug- oder Brennkraftmaschinentypen angepasst werden kann. Außerdem soll der Fertigungsaufwand reduziert werden.The invention is therefore an object of the invention to provide an aforementioned pump and an aforementioned motor vehicle internal combustion engine, in which the pump side has the ability to flexibilize position and / or orientation of a radial inlet or outlet, so that the pump easily to different Installation space conditions and / or vehicle or internal combustion engine types can be adjusted. In addition, the production cost is to be reduced.

Die Lösung der Aufgabe erfolgt mit einer Pumpe mit den Merkmalen des Anspruchs 1 sowie mit einer Kraftfahrzeug-Brennkraftmaschine mit den Merkmalen des Anspruchs 3.The object is achieved with a pump having the features of claim 1 and with a motor vehicle internal combustion engine having the features of claim 3.

Abhängig von der rotatorischen Lage des Pumpengehäuses bezüglich des Brennkraftmaschinengehäuses verändert sich erfindungsgemäß die Position der Pumpenrotor-Achse zur Nockenwellenachse. Dadurch wird die Möglichkeit zur Anpassung an unterschiedliche Bauraumsituationen geschaffen, sodass die Pumpe mit unterschiedlichsten Fahrzeug- oder Brennkraftmaschinentypen verwendbar ist. Insbesondere ergeben sich auch Freiheiten bei der geometrischen Gestaltung der Austrittskanäle zur Reduzierung der Leistungsaufnahme. Mit der Erfindung wird ein radialer Auslass an der Pumpe ermöglicht.Depending on the rotational position of the pump housing with respect to the engine housing, the position of the pump rotor axis to the camshaft axis changes according to the invention. This creates the opportunity to adapt to different space situations, so that the pump can be used with a variety of vehicle or engine types. In particular, there are also freedoms in the geometric design of the outlet channels to reduce power consumption. With the invention, a radial outlet on the pump is made possible.

Besonders zu bevorzugende Ausführungen und Weiterbildungen der Erfindung sind Gegenstand der abhängigen Ansprüche.Particularly preferred embodiments and developments of the invention are the subject of the dependent claims.

Vorzugsweise weist bei einem Abstand zwischen Mitte der Querschnittsfläche des zweiten Pumpengehäusebereichs und Rand der Querschnittsfläche von s die Achse des Pumpenrotors einen Versatz von s/5 bis 4s/5, insbesondere von ca. s/3, zur Mitte der Querschnittsfläche auf. Es hat sich gezeigt, dass mit einem derartigen Versatz unter den gegebenen Randbedingungen für den Pumpenarbeitsraum und die Lage des Pumpen-Rotors bezüglich des PumpenGehäuses eine bestmögliche Flexibilisierung der Pumpe erreicht werden kann.Preferably, at a distance between the center of the cross-sectional area of the second pump housing portion and edge of the cross-sectional area of s, the axis of the pump rotor has an offset of s / 5 to 4s / 5, in particular of approximately s / 3, to the center of the cross-sectional area. It has been found that with such an offset under the given boundary conditions for the pump working space and the position of the pump rotor with respect to the pump housing a best possible flexibilization of the pump can be achieved.

Zur lagegenauen Befestigung des Pumpengehäuses am Brennkraftmaschinengehäuse sind Befestigungsstellen vorgesehen, wobei wenigstens eine Befestigungsstelle wenigstens ein Passelement umfasst und die Befestigungsstellen im Wesentlichen unterhalb der Achse des Pumpenrotors angeordnet sind. Indem wenigstens eine Befestigungsstelle wenigstens ein Passelement umfasst kann eine exakte Positionierung der Pumpe bezüglich des Brennkraftmaschinengehäuses mit dieser wenigstens einen Befestigungsstelle erreicht werden, sodass sich eine Positionierung mittels der Eintrittsgeometrie des Pumpengehäuses in das Brennkraftmaschinengehäuse erübrigt. Damit wird eine wesentliche Vereinfachung bei der Fertigung des Pumpengehäuses sowie der Eintrittsgeometrie am Brennkraftmaschinengehäuse erreicht. Die Anordnung der Befestigungsstellen im Wesentlichen unterhalb der Achse des Pumpenrotors unterstützt ebenfalls eine vereinfachte Herstellung, da beispielsweise die Befestigungsstellen im Wesentlichen im Zylinderkopf vorgesehen sein können und eine Aufteilung der Befestigungsstellen auf mehrere Bauteile, wie Zylinderkopf und Zylinderkopfhaube, vermieden werden kann. Außerdem ergeben sich Bauraumvorteile, indem die Befestigungsstellen in Bereiche gelegt werden können, die bauraumunkritischer sind.For positionally accurate attachment of the pump housing to the engine housing attachment points are provided, wherein at least one attachment point comprises at least one fitting element and the attachment points are arranged substantially below the axis of the pump rotor. By at least one attachment point comprises at least one fitting element, an exact positioning of the pump with respect to the engine housing can be achieved with this at least one attachment point, so that positioning by means of the inlet geometry of the pump housing in the engine housing is unnecessary. Thus, a significant simplification in the manufacture of the pump housing and the inlet geometry is achieved on the engine housing. The arrangement of the attachment points substantially below the axis of the pump rotor also supports a simplified production, since, for example, the attachment points can be provided substantially in the cylinder head and a division of the attachment points to several components, such as cylinder head and cylinder head cover can be avoided. In addition, space advantages result by the attachment points can be placed in areas that are less critical space.

Die erfindungsgemäße Pumpe zeichnet sich ferner dadurch aus, dass das Pumpengehäuse zwischen seinem ersten Pumpengehäusebereich und den Befestigungsstellen rippenartig versteift ist. Damit wird eine sichere und dauerhaft feste Anordnung der Pumpe am Brennkraftmaschinengehäuse erreicht, insbesondere auch bei bezüglich der Pumpen-Achse radial ungleichmäßig verteilten Befestigungsstellen.The pump according to the invention is further characterized in that the pump housing is stiffened rib-like between its first pump housing portion and the attachment points. Thus, a secure and permanently fixed arrangement of the pump is achieved on the engine housing, in particular with respect to the pump axis radially unevenly distributed attachment points.

Bei einer besonders bevorzugten Ausführung der erfindungsgemäßen Kraftfahrzeug-Brennkraftmaschine ist die Versatzrichtung der Achse des Pumpenrotors ausgehend von der Mitte der Querschnittsfläche des zweiten Pumpengehäusebereichs dem Pumpen-Auslass entgegengerichtet. Dadurch ergibt sich ein besonders großer Raum für den radialen Auslass der Pumpe.In a particularly preferred embodiment of the motor vehicle internal combustion engine according to the invention, the offset direction of the axis of the pump rotor, starting from the middle of the cross-sectional area of the second pump housing portion, is directed opposite to the pump outlet. This results in a particularly large space for the radial outlet of the pump.

Als sehr zweckmäßig wird es angesehen, wenn der Eintritt des Pumpengehäuses durch den Öffnungsbereich des Brennkraftmaschinengehäuses in das Brennkraftmaschinengehäuse radial spielbehaftet ist und eine lagegenaue Befestigung des Pumpengehäuses am Brennkraftmaschinengehäuse mittels im Wesentlichen unterhalb der Trennebene zwischen Zylinderkopf und Zylinderkopfhaube angeordneter Befestigungsstellen erfolgt. Dadurch kann eine Positionierung der Pumpe mittels der Außenkontur des zweiten Pumpengehäusebereichs in Verbindung mit der Innenkontur des Öffnungsbereichs des Brennkraftmaschinengehäuses entfallen, sodass der fertigungstechnische Aufwand deutlich reduziert und die Flexibilität erhöht ist. Vorzugsweise ist im Öffnungsbereich des Brennkraftmaschinengehäuses zwischen Pumpengehäuse und Brennkraftmaschinengehäuses eine Dichtung angeordnete. Mittels dieser Dichtung können auch Formfehler der Außenkontur des zweiten Pumpengehäusebereichs und/oder der Innenkontur des Öffnungsbereichs des Brennkraftmaschinengehäuses sowie Lagefehler zwischen Pumpengehäuse und Öffnungsbereich des Brennkraftmaschinengehäuses ausgeglichen werden.It is considered to be very useful if the entry of the pump housing through the opening portion of the engine housing in the engine housing is radially play and a positionally accurate attachment of the pump housing to the engine housing by means substantially below the plane of separation between the cylinder head and cylinder head cover arranged attachment points. As a result, a positioning of the pump by means of the outer contour of the second pump housing region in conjunction with the inner contour of the opening region of the engine housing can be dispensed with, so that the manufacturing outlay is significantly reduced and the flexibility is increased. Preferably, a seal is arranged in the opening region of the engine housing between the pump housing and the engine housing. Forming errors of the outer contour of the second pump housing region and / or the inner contour of the opening region of the engine housing as well as positional errors between the pump housing and the opening region of the engine housing can also be compensated by means of this seal.

Gemäß einer vorteilhaften Weiterbildung der erfindungsgemäßen Kraftfahrzeug-Brennkraftmaschine sind die Befestigungsstellen im Bereich des Zylinderkopfes angeordnet und das Pumpengehäuse tritt mit seinem zweiten Pumpengehäusebereich im Wesentlichen im Bereich der Zylinderkopfhaube in das Brennkraftmaschinengehäuse ein.According to an advantageous embodiment of the motor vehicle internal combustion engine according to the invention, the attachment points are arranged in the region of the cylinder head and the pump housing enters with its second pump housing portion substantially in the region of the cylinder head cover in the engine housing.

Nachfolgend ist ein besonders zu bevorzugendes Ausführungsbeispiel der Erfindung unter Bezugnahme auf Figuren näher erläutert, dabei zeigen schematisch und beispielhaft

Figur 1a
eine nockenwellengetriebene Pumpe an einem Brennkraftmaschinengehäuse in Seitenansicht
Figur 1b
eine nockenwellengetriebene Pumpe an einem Brennkraftmaschinengehäuse in Rückansicht.
Figur 2a
eine nockenwellengetriebene Pumpe in seitlicher Ansicht und
Figur 2b
eine nockenwellengetriebene Pumpe in Rückansicht.
Below is a particularly preferred embodiment of the invention with reference to figures explained in more detail, showing schematically and by way of example
FIG. 1a
a camshaft driven pump on an internal combustion engine housing in side view
FIG. 1b
a camshaft driven pump on an internal combustion engine housing in rear view.
FIG. 2a
a camshaft driven pump in lateral view and
FIG. 2b
a camshaft driven pump in rear view.

Figur 1a zeigt eine weiter nicht näher ausgeführte Kraftfahrzeug-Brennkraftmaschine mit oben liegenden Nockenwellen und einer nockenwellengetriebene Pumpe 108 in Seitenansicht, eine Rückansicht der Pumpe 108 ist in Figur 1b gezeigt. In Figur 1 ist die Pumpe 108 in montierter Position an einem Brennkraftmaschinengehäuse 102 gezeigt. FIG. 1a shows a further unspecified running motor vehicle internal combustion engine with overhead camshafts and a camshaft driven pump 108 in side view, a rear view of the pump 108 is in FIG. 1b shown. In FIG. 1 For example, pump 108 is shown mounted to an engine housing 102.

Ein weiteres Ausführungsbeispiel einer nockenwellengetriebene Pumpe 208 ist in seitlicher Ansicht in Figur 2a und in Rückansicht in Figur 2b dargestellt. Figur 2 zeigt die Pumpe 208 in nicht eingebautem Zustand ohne Brennkraftmaschine.Another embodiment of a camshaft driven pump 208 is in side view in FIG. 2a and in rear view in FIG. 2b shown. FIG. 2 shows the pump 208 in a non-installed state without internal combustion engine.

Auch wenn nachfolgend die Pumpen 108, 208 gemeinsam und mit Bezug auf das Brennkraftmaschinengehäuse 102 beschrieben werden, handelt es sich um verschiedene Ausführungen, die jeweils auch mit anderen Brennkraftmaschinengehäusen verwendet werden können.Although hereinafter the pumps 108, 208 are described together and with respect to the engine housing 102, it is various designs that can be used with other engine cases.

Die Pumpe 108, 208 dient zur Erzeugung von Unterdruck für Nebenaggregate der Brennkraftmaschine oder für das Kraftfahrzeug und ist beispielsweise eine Einflügelunterdruckpumpe mit einem topfförmigen Stator mit konchoidenförmiger Innenkontur, in dem ein Rotor drehbar gelagert ist. In dem Rotor ist orthogonal zu dessen Drehachse a, b ein Flügel verschieblich gelagert, der mit seinen Flügelspitzen an der einen Arbeitsraum begrenzenden Umfangsfläche anliegt und dabei den Arbeitsraum in einen Saugraum und einen Druckraum unterteilt. Der Saugraum ist mit einer Einlassöffnung und der Druckraum ist mit einer Auslassöffnung versehen, wobei die Auslassöffnung in der den Druckraum umgebenden Umfangsfläche angeordnet ist. Gegebenenfalls kann die Pumpe 108, 208 auch eine Flügelzellenpumpe, eine innen- oder außenverzahnte Zahnradpumpe, eine Hubkolbenpumpe oder eine innen- oder außenbeaufschlagte Radialkolbenpumpe sein. Die Pumpe 108, 208 ist zu Schmierzwecken ausgehend von der Nockenwelle beispielsweise mittels Ölübergaberöhren ölbeaufschlagt.The pump 108, 208 serves to generate negative pressure for ancillary components of the internal combustion engine or for the motor vehicle and is for example a single-wing vacuum pump with a cup-shaped stator with konchoidenförmiger inner contour in which a rotor is rotatably mounted. In the rotor, a wing is displaceably mounted orthogonally to its axis of rotation a, b, which rests with its wing tips on a working space delimiting peripheral surface and thereby dividing the working space into a suction chamber and a pressure chamber. The suction space is provided with an inlet opening and the pressure space is provided with an outlet opening, wherein the outlet opening is arranged in the circumferential area surrounding the pressure space. Optionally, the pump 108, 208 may also be a vane pump, an internally or externally toothed gear pump, a reciprocating pump or an internally or externally pressurized radial piston pump. The pump 108, 208 is lubricated for lubrication purposes starting from the camshaft, for example by means of oil transfer tubes.

Die Brennkraftmaschine umfasst ein Brennkraftmaschinengehäuse 102 mit Zylinderkopf 104 und Zylinderkopfhaube 106, wobei im Zylinderkopf 104 Nockenwellen zur Betätigung von Ein- und Auslassventilen der Brennkraftmaschine gelagert sind. Vorliegend ist vereinfacht nur eine Mittellinie 126 einer Nockenwelle dargestellt.The internal combustion engine comprises an internal combustion engine housing 102 with a cylinder head 104 and a cylinder head cover 106, wherein camshafts for actuating intake and exhaust valves of the internal combustion engine are mounted in the cylinder head 104. In the present case, only a center line 126 of a camshaft is shown in simplified form.

Die Pumpe 108, 208 ist in Verlängerung einer Nockenwelle (126) außenseitig am Brennkraftmaschinengehäuse 102 angeordnet. In der Zylinderkopfhaube 106 ist zum Eintritt einer mit dem Pumpenrotor verbundene Pumpenwelle 120, 220 in das Brennkraftmaschinengehäuse 102 eine Öffnung 122 vorgesehen ist. Die Trennebene 105 zwischen Zylinderkopf 104 und Zylinderkopfhaube 106 verläuft vorliegend unterhalb der Nockenwellenebene. Dem entsprechend ist die Öffnung 122 im Brennkraftmaschinengehäuse 102 oberhalb der Trennebene 105 im Wesentlichen in der Zylinderkopfhaube 106 angeordnet. Gegebenenfalls kann jedoch in einem anderen Ausführungsbeispiel zumindest ein Teil der Öffnung 122 auch im Zylinderkopf 104 angeordnet sein.The pump 108, 208 is arranged in the extension of a camshaft (126) on the outside of the engine housing 102. In the cylinder head cover 106, an opening 122 is provided for the entry of a pump shaft 120, 220 connected to the pump rotor into the engine housing 102. The parting plane 105 between the cylinder head 104 and the cylinder head cover 106 in the present case extends below the camshaft plane. Accordingly, the opening 122 in the engine housing 102 above the parting plane 105 in Essentially arranged in the cylinder head cover 106. Optionally, however, in another embodiment, at least a portion of the opening 122 may also be disposed in the cylinder head 104.

Die Pumpe 108, 208 umfasst ein Pumpengehäuse 109, 209 mit einem ersten Gehäusebereich 110, 210, der im Wesentlichen den Pumpenarbeitsraum umschließt, und einem zweiten Gehäusebereich 112, 212, der im Öffnungsbereich 122 des Brennkraftmaschinengehäuses 102 in dieses eintritt. Der Pumpengehäusebereich 112, 212 weist vorliegend eine zylindrische Form auf. Im Eintrittsbereich in das Brennkraftmaschinengehäuse 102 ist die Querschnittsfläche A des Pumpengehäusebereichs 112 entsprechend kreisförmig, der Mittelpunkt der Querschnittsfläche A ist mit M bezeichnet. Die Pumpe weist einen radial gerichteten Auslass 132, 232 sowie einen Einlass 230 auf.The pump 108, 208 includes a pump housing 109, 209 having a first housing portion 110, 210 which substantially encloses the pump working space, and a second housing portion 112, 212 which enters the opening portion 122 of the engine housing 102 therein. The pump housing portion 112, 212 in the present case has a cylindrical shape. In the entry region into the engine housing 102, the cross-sectional area A of the pump housing portion 112 is correspondingly circular, the center of the cross-sectional area A is denoted by M. The pump has a radially directed outlet 132, 232 and an inlet 230.

Die Öffnung 122 des Brennkraftmaschinengehäuses 102 ist korrespondierend rund ausgebildet, wobei der Eintritt des Pumpengehäuses 109, 209 mit seinem Bereich 112, 212 durch den Öffnungsbereich 122 des Brennkraftmaschinengehäuses 102 in das Brennkraftmaschinengehäuse 102 radial spielbehaftet ist. Zur Abdichtung zwischen Brennkraftmaschinengehäuse 102 und Pumpengehäuse 109, 112, 209, 212 ist eine Dichtung 124 vorgesehen. Diese Dichtung 124 ist vorliegend als im Wesentlichen radial wirkende Dichtung ausgeführt, jedoch kann sie bei einem anderen Ausführungsbeispiel zusätzlich oder alternativ in axialer Richtung dichten. Mit der Dichtung 124 können auch Toleranzen ausgeglichen werden.The opening 122 of the engine housing 102 is formed correspondingly round, wherein the entry of the pump housing 109, 209 with its portion 112, 212 through the opening portion 122 of the engine housing 102 into the engine housing 102 is radially backlash. For sealing between the engine housing 102 and the pump housing 109, 112, 209, 212, a seal 124 is provided. This seal 124 is in the present case designed as a substantially radially acting seal, however, in another embodiment, it may additionally or alternatively seal in the axial direction. With the seal 124 and tolerances can be compensated.

Eine lagegenaue Befestigung des Pumpengehäuses 109, 209 am Brennkraftmaschinengehäuse 102 erfolgt mittels unterhalb der Trennebene 105 zwischen Zylinderkopf 104 und Zylinderkopfhaube 106 angeordneter Befestigungsstellen 114, 115, 214, 215. Die Befestigungsstellen 114, 115, 214, 215 sind am Pumpengehäuse 109, 209 unterhalb der Pumpenwellen-Achse a, b vorgesehen, wobei das Pumpengehäuse 109, 209 zur Versteifung Rippen 118, 218 zwischen den Befestigungsstellen 114, 115, 214, 215 und dem ersten Pumpengehäusebereich 110, 210 aufweist. Bei einem anderen Ausführungsbeispiel kann selbstverständlich eine andere Anzahl von Befestigungsstellen vorgesehen sein und diese können anders angeordnet sein.A positionally accurate attachment of the pump housing 109, 209 on the engine housing 102 by means of below the parting plane 105 between the cylinder head 104 and cylinder head cover 106 arranged attachment points 114, 115, 214, 215. The attachment points 114, 115, 214, 215 are on the pump housing 109, 209 below the Pump shaft axis a, b provided, wherein the pump housing 109, 209 for stiffening ribs 118, 218 between the attachment points 114, 115, 214, 215 and the first pump housing portion 110, 210 has. In another embodiment, of course, a different number of attachment points may be provided and these may be arranged differently.

Einige der Befestigungsstellen umfassen Passelemente 116, 216. Vorliegend sind zwei Befestigungsstellen 114, 214 mit Passhülsen oder Passstiften versehen. Mittels dieser Passelemente 116, 216 erfolgt eine exakte Positionierung der Pumpe 108, 208 zum Brennkraftmaschinengehäuse 102 und damit zur Nockenwelle (126). Damit erübrigt sich die Notwendigkeit einer Positionierung mittels des zweiten Pumpengehäusebereichs 112, 212 und des Öffnungsbereichs 122 des Brennkraftmaschinengehäuses 102.Some of the fastening points comprise fitting elements 116, 216. In the present case, two fastening points 114, 214 are provided with dowel sleeves or dowel pins. By means of these mating elements 116, 216 is an exact positioning of the pump 108, 208 to the engine housing 102 and thus to the camshaft (126). This eliminates the need for positioning by means of the second pump housing portion 112, 212 and the opening portion 122 of the engine housing 102nd

Bei der Montage der Pumpe 108, 208 am Brennkraftmaschinengehäuse 112 greift zunächst das optionale Ölübergaberöhrchen an der Nockenwelle (126) ein, dann die Kupplung der Pumpe 108, 208 an der Nockenwelle (126), nachfolgend die Dichtung 124 und zuletzt die Passhülsen 116, 216 im Zylinderkopf 104. Außerdem wird der Fügevorgang durch Fasen an den jeweiligen Kanten unterstützt. Dadurch wird die Montage wesentlich erleichtert. An den Befestigungsstellen 114, 115, 214, 215 wird das Pumpengehäuse 109, 209 von außen mit dem Brennkraftmaschinengehäuse 102 verschraubt.When mounting the pump 108, 208 on the engine housing 112 engages first the optional oil transfer tube on the camshaft (126), then the coupling of the pump 108, 208 on the camshaft (126), subsequently the seal 124 and finally the dowel sleeves 116, 216 in the cylinder head 104. In addition, the joining process is supported by bevels on the respective edges. As a result, the assembly is much easier. At the fastening points 114, 115, 214, 215, the pump housing 109, 209 is screwed from the outside to the engine housing 102.

Die erfindungsgemäße Pumpe 108, 208 kann mit einer Vielzahl von Brennkraftmaschinentypen verwendet werden ungeachtet deren geometrischen Randbedingungen, wie Lage der Trennebene 105 zwischen Zylinderkopf 104 und Zylinderkopfhaube 106 oder Lage der Nockenwelle. Insbesondere kann die Pumpe 108, 208 sowohl mit Brennkraftmaschinen verwendet werden, die einen variablen Ventiltrieb, das heißt einen Ventiltrieb, bei dem der Hub der Ventile variabel ist, aufweisen, als auch mit Brennkraftmaschinen, die einen konventionellen Ventiltrieb aufweisen. Außerdem kann die Pumpe 108, 208 ungeachtet der Anordnung eines Tragbügels verwendet werden. Die Pumpe 108, 208 ist daher in besonderem Maße flexibel verwendbar. Lediglich die Befestigungsstellen 114, 115, 214, 215 sind bereit zu stellen. Damit wird ein einfaches Baukastensystem, beispielsweise auch mittels unterschiedlicher Scheibendicken der Pumpe 108, 208 bereit gestellt. Ein bisher üblicherweise erforderlicher Tragbügel für die Pumpe 108, 208 und/oder genau zu fertigende Zentrierduchmesser können entfallen. Bohrungen für die Passelemente 116, 216 können in einem Arbeitsgang mit erforderlichen Gewinden mittels Stufenbohrer gefertigt werden. Dadurch ist der Aufwand bei Fertigung und Montage deutlich reduziert.The inventive pump 108, 208 can be used with a variety of engine types regardless of their geometric constraints, such as location of the separation plane 105 between the cylinder head 104 and cylinder head cover 106 or position of the camshaft. In particular, the pump 108, 208 can be used both with internal combustion engines having a variable valve train, that is a valve train in which the stroke of the valves is variable, as well as with internal combustion engines having a conventional valve train. In addition, the pump 108, 208 may be used regardless of the arrangement of a support bracket. The pump 108, 208 is therefore particularly flexible used. Only the Attachment points 114, 115, 214, 215 are to be provided. For a simple modular system, for example, by means of different thicknesses of the pump 108, 208 provided. A hitherto usually required mounting bracket for the pump 108, 208 and / or exact to be produced Zentrierduchmesser can be omitted. Holes for the fitting elements 116, 216 can be manufactured in one operation with required threads by means of stepped drill. As a result, the cost of production and assembly is significantly reduced.

Eine Druckölabdichtung nach außen kann entfallen, damit wird das Risiko von Undichtigkeit verringert, da nur noch der nahezu drucklose Raum unter der Zylinderkopfhaube 106 nach außen hin abgedichtet werden muss. Das Zylinderkopf-Rohteil kann aufgrund seiner geraden Dichtflächen einfach dichtgeprüft werden. Zylinderkopf-Rohteile können aufgrund der jetzt nicht mehr erforderlichen Pumpen-Tragbügel einfach gestapelt und transportiert werden und der Entfall des Tragbügels und des Zentrierdurchmessers bringt eine Verringerung der axialen Baulänge des Zylinderkopfes mit sich.A pressure oil seal to the outside can be omitted, so that the risk of leakage is reduced, since only the almost pressureless space under the cylinder head cover 106 must be sealed to the outside. The cylinder head blank can be easily leak tested due to its straight sealing surfaces. Cylinder head blanks can be easily stacked and transported due to the now no longer required pump mounting bracket and the elimination of the support bracket and the centering diameter brings a reduction in the axial length of the cylinder head with it.

Claims (8)

  1. A pump (108, 208) for a motor vehicle internal combustion engine, comprising a rotor (120, 220) which can be connected to a camshaft (126) of the internal combustion engine and having an axis (a, b), and a pump casing (109, 209) which can be connected to a housing (102) of the internal combustion engine and having a first pump casing region (110, 210) and a second, cylindrical, pump casing region (112, 212), wherein the second pump casing region (112, 212) is intended for entry through an opening region (122) of the internal combustion engine housing (102) into the internal combustion engine housing (102), the axis (a, b) of the pump rotor (120) is arranged eccentrically to a circular cross-sectional surface area (A, B) of the second pump casing region (112, 212), and fastening points (114, 115, 214, 215) are provided for fastening the pump casing (109, 209) to the internal combustion engine housing (102) in an exact position, characterised in that at least one fastening point (114, 214) comprises at least one fitting element (116, 216), the fastening points (114, 115, 214, 215) are arranged substantially below the axis (a, b) of the pump rotor (120, 220) and the pump casing (109, 209) is reinforced (118, 218) in rib-like manner between its first pump casing region (110, 210) and the fastening points (114, 115, 214, 215).
  2. A pump (108, 208) according to Claim 1, characterised in that, for a distance between the centre (M) of the cross-sectional surface area (A, B) of the second pump casing region (112, 212) and the edge (128) of the cross-sectional surface area (A, B) of s, the axis (a, b) of the pump rotor (120) has an offset of s/5 to 4s/5, especially of approximately s/3, to the centre (M) of the cross-sectional surface area (A, B).
  3. A motor vehicle internal combustion engine, having
    - an internal combustion engine housing (102) comprising a cylinder head (104) and a cylinder-head cover (106), wherein a parting plane (105) is formed between the cylinder head (104) and cylinder-head cover (106), and also
    - at least one camshaft (126) and one pump (108, 208) according to one of the preceding claims.
  4. A motor vehicle internal combustion engine according to Claim 3, characterised in that the direction of offset of the axis (a, b) of the pump rotor (120, 220) starting from the centre (M) of the cross-sectional surface area (A, B) of the second pump casing region (112, 212) is opposed to the pump outlet (232).
  5. A motor vehicle internal combustion engine according to Claim 3, characterised in that the direction of offset between the centre (M) of the cross-sectional surface area (A, B) of the second pump casing region (112, 212) and the axis (a, b) of the pump rotor (120, 220) starting from the parting plane (105) between the cylinder head (104) and cylinder-head cover (106) is inclined in the direction of the cylinder-head cover (106).
  6. A motor vehicle internal combustion engine according to one of Claims 3 to 5, characterised in that the entry of the pump casing (109, 112, 209, 212) through the opening region (122) of the internal combustion engine housing (102) into the internal combustion engine housing (102) has radial clearance, and fastening of the pump casing (109) to the internal combustion engine housing (102) in an exact position takes place by means of fastening points (114, 115, 214, 215) arranged substantially below the parting plane (105) between the cylinder head (104) and cylinder-head cover (106).
  7. A motor vehicle internal combustion engine according to one of Claims 3 to 6, characterised by a seal (124) arranged in the opening region (122) of the internal combustion engine housing (102) between the pump casing (109, 209) and internal combustion engine housing (102).
  8. A motor vehicle internal combustion engine according to one of Claims 3 to 7, characterised in that the fastening points (114, 214) are arranged in the region of the cylinder head (104) and the pump casing (109, 209) enters into the internal combustion engine housing (102) with its second pump casing region (112, 212) substantially in the region of the cylinder-head cover (106).
EP10706946.0A 2009-04-02 2010-03-02 Pump for a motor vehicle internal combustion engine, and motor vehicle internal combustion engine having a pump Active EP2414683B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009016048.5A DE102009016048B4 (en) 2009-04-02 2009-04-02 Pump for a motor vehicle internal combustion engine and motor vehicle internal combustion engine with pump
PCT/EP2010/001268 WO2010112114A2 (en) 2009-04-02 2010-03-02 Pump for a motor vehicle internal combustion engine, and motor vehicle internal combustion engine having a pump

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EP2414683A2 EP2414683A2 (en) 2012-02-08
EP2414683B1 true EP2414683B1 (en) 2019-01-02

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CN (1) CN102308095B (en)
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JP2005163607A (en) * 2003-12-02 2005-06-23 Aisan Ind Co Ltd Vane type vacuum pump and method for manufacturing rotor and coupling for vacuum pump

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DE4016014C2 (en) * 1989-06-01 1998-02-19 Barmag Barmer Maschf Vane vacuum pump
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Also Published As

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CN102308095A (en) 2012-01-04
CN102308095B (en) 2014-12-31
WO2010112114A3 (en) 2010-11-25
WO2010112114A2 (en) 2010-10-07
DE102009016048B4 (en) 2018-05-30
EP2414683A2 (en) 2012-02-08
DE102009016048A1 (en) 2010-10-07

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