EP2273123B1 - Axial bearing for a pump wheel - Google Patents
Axial bearing for a pump wheel Download PDFInfo
- Publication number
- EP2273123B1 EP2273123B1 EP09164927.7A EP09164927A EP2273123B1 EP 2273123 B1 EP2273123 B1 EP 2273123B1 EP 09164927 A EP09164927 A EP 09164927A EP 2273123 B1 EP2273123 B1 EP 2273123B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rotor
- pump
- stop ring
- rotor axis
- coolant pump
- 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
Links
- 239000002826 coolant Substances 0.000 claims description 23
- 238000003466 welding Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 5
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 208000031872 Body Remains Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000005405 multipole Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/0606—Canned motor pumps
- F04D13/0633—Details of the bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/0606—Canned motor pumps
- F04D13/0626—Details of the can
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/0673—Units comprising pumps and their driving means the pump being electrically driven the motor being of the inside-out type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/041—Axial thrust balancing
- F04D29/0413—Axial thrust balancing hydrostatic; hydrodynamic thrust bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
- F04D29/047—Bearings hydrostatic; hydrodynamic
Definitions
- the invention relates to an electrically driven motor vehicle coolant pump for a motor vehicle driven by an internal combustion engine, wherein the coolant pump has a motor housing and a containment shell.
- DE 44 11 960 C2 discloses a coolant pump for a motor vehicle internal combustion engine, in which a rotor axis is mounted at one end centrally in an end face of a plastic containment shell.
- a pump rotor On the rotor axis, a pump rotor is arranged, which is axially fixed at the distal end of the rotor axis by means of a thrust washer and with a introduced into a circumferential groove stop ring, in the form of a spring ring.
- the stop ring must be introduced radially into the circumferential groove.
- it is necessary that the pump rotor must be rotationally aligned before mounting the stop ring, so that the stop ring mounting device can reach through between the pump blades.
- this type of stop ring assembly is not possible for reasons of space. The exact position of the stop ring and its holding force can only be checked consuming, which complicates a fully automatic assembly.
- stop ring is pulled axially to the circumferential groove on the rotor axis.
- this type of fixation can only be realized using high assembly forces, since the stop ring must be stretched considerably radially.
- the stop ring must have a certain strength to a sufficient Apply holding force.
- the stop ring must have a certain elasticity in order to be able to be sunk in the groove.
- stop rings are used with a typical axial thickness of 3/10 mm.
- the stop ring is subject in operation wear in the form of material removal, which is significantly enhanced by foreign bodies in the coolant, and eventually can lead to premature failure of the pump by breaking the stop ring.
- the object of the invention is in contrast to provide an electric cardenilttelpumpe, which allows a simple and inexpensive installation of the rotor on the rotor axis and ensures a long life.
- the coolant pump according to the invention has a split-pot motor arrangement, with a pump rotor with pump blades, which is mounted by a sliding bearing on a fixed metallic rotor axis.
- the pump blades of the pump rotor are arranged axially in the region of a plain bearing sleeve and are fixed with a metallic stop ring at the distal end of the metallic rotor axis, wherein the metallic stop ring is welded to the metallic rotor axis.
- the stop ring may preferably be formed as a closed or open stop ring, and before the fixation, which is carried out by means of a welding process, are mounted.
- the stop ring has an axial thickness of at least 0.9 mm. This material thickness, in contrast to conventional stop rings, which ideally have a typical axial thickness of 3/10 mm, a higher resistance to wear in the form of material removal, which is significantly enhanced by foreign bodies in the coolant on.
- the combination of axial strength of the stop ring and the fixation by welding on the rotor axis leads to an additional backup in case of breakage of the stop ring. Due to the welding of the stop ring remains despite a break at least partially on the rotor axis, so that the rotor body remains positioned on the rotor axis.
- the plain bearing sleeve is positively injected into the rotor body, wherein the plain bearing sleeve forms a thrust bearing with the stop ring.
- the electric motor vehicle coolant pump has an axial gap between the rotor body and the stop ring, which is at least 0.5 mm.
- the electric vehicle coolant pump has a metallic stop ring, which is preferably fixed by laser welding to the rotor axis.
- laser welding a focused laser beam is directed at the joint to be machined.
- a targeted heat transfer which leads to a lower distortion of the material.
- higher welding speeds can be achieved because the laser welding process is fully automated.
- the metallic axial rotor axis is rotatably and positively inserted into the containment shell.
- the electric vehicle coolant pump preferably has a structure, wherein a single housing made of plastic is provided for the pump rotor and the motor rotor, which is produced in one piece by means of an injection molding process.
- the electric vehicle coolant pump preferably has a housing and a containment shell, which are formed as a one-piece component.
- Fig. 1 shows a coolant pump 10 in longitudinal section.
- the coolant pump 10 has a plastic housing 12, which is integrally formed, wherein the inner cup-shaped part forms the containment shell 14, which consists of a circular disk-shaped End wall 16 and a cylindrical side wall 18 is made.
- a metallic rotor axis 26 is embedded with its one end in a form-fitting axial alignment by an injection molding process in the end wall 14.
- a pump rotor 20 which has an embedded in the pump rotor 20 plain bearing sleeve 22 which forms the sliding bearing 24 together with the rotor axis 26.
- the plastic pump rotor 20 has pumping blades 50 arranged axially in the region of the metal plain bearing sleeve 22.
- the pump rotor 20 consists of a one-piece plastic body and has a plurality of embedded permanent magnets in a cylindrical motor rotor 23, so that a multi-pole magnetization of the motor rotor 23 is present.
- the motor rotor 23 is entrained by the rotational magnetic field generated in the magnetic coils 60 and rotated.
- a closed stop ring 40 At the free end of the rotor axis 26 of the pump rotor 20 is fixed by means of a closed stop ring 40 in axial alignment, with an axial gap 28 of 0.5 mm to the pump rotor 20 remains.
- the attachment of the stop ring 40 takes place on the rotor axis 26 through a weld point 42.
- the weld point 42 on the stop ring 40 which has an axial thickness of at least 0.9 mm, set by laser welding.
- the assembly of the coolant pump 10 takes place from the free end of the rotor axis 26, wherein the component 11, consisting of the housing 12 and the can 14, and the rotor shaft 26 arranged fixedly can have a vertical or horizontal orientation.
- the pump rotor 20 is positioned above the component 11 and the rotor axis 26, wherein the pump rotor 20 is deposited by gravity on the rotor axis 26.
- the pump rotor 20 When mounted horizontally, the pump rotor 20 is axially aligned on the rotor axis 26 due to the axial magnetic forces acting between the motor rotor 23 and the solenoids 60.
- the stop ring 40 is pulled over the rotor axis 26 in the axial direction until it stops against the pump rotor 20. Subsequently, by means of a device, an axial displacement of the pump rotor 20 on the rotor axis 26 is performed, by which a defined axial gap 28 is formed to the stop ring 42. This made displacement of the pump rotor 20 and the stop ring 42 on the rotor axis 26 is maintained until the fixation of the stop ring 42 with the rotor axis 26 by means of a welding process, which leads to the formation of a welding point 42 through the device.
- the gap between the rotor axis 26 and the stop ring 42 is at least 0.5 mm.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
Die Erfindung betrifft eine elektrisch angetriebene Kfz-Kühlmittelpumpe für ein mit einem Verbrennungsmotor angetriebenes Kraftfahrzeug, wobei die Kühlmittelpumpe ein Motorgehäuse und einen Spalttopf aufweist.The invention relates to an electrically driven motor vehicle coolant pump for a motor vehicle driven by an internal combustion engine, wherein the coolant pump has a motor housing and a containment shell.
Aus dem Stand der Technik ist eine weitere Variante der axialen Fixierung eines Anschlagringes bekannt: Hierbei wird der Anschlagring axial bis zur Umfangsnut über die Rotorachse gezogen. Diese Art der Fixierung kann jedoch nur unter Einsatz hoher Montagekräfte realisiert werden, da der Anschlagring erheblich radial gedehnt werden muss. Der Anschlagring muss jedoch eine gewisse Stärke aufweisen, um eine ausreichende Haltekraft aufzubringen. Zudem muss der Anschlagring eine gewisse Elastizität besitzen, um in der Nut versenkt werden zu können. Idealerweise werden Anschlagringe mit einer typischen axialen Stärke von 3/10 mm verwendet. Der Anschlagring unterliegt im Betrieb einem Verschleiß in Form von Materialabtrag, der erheblich durch Fremdkörper im Kühlmittel verstärkt wird, und schließlich zu einem frühen Versagen der Pumpe durch Bruch des Anschlagrings führen kann.From the prior art, a further variant of the axial fixation of a stop ring is known: Here, the stop ring is pulled axially to the circumferential groove on the rotor axis. However, this type of fixation can only be realized using high assembly forces, since the stop ring must be stretched considerably radially. However, the stop ring must have a certain strength to a sufficient Apply holding force. In addition, the stop ring must have a certain elasticity in order to be able to be sunk in the groove. Ideally, stop rings are used with a typical axial thickness of 3/10 mm. The stop ring is subject in operation wear in the form of material removal, which is significantly enhanced by foreign bodies in the coolant, and eventually can lead to premature failure of the pump by breaking the stop ring.
Aus
Aufgabe der Erfindung ist es demgegenüber, eine elektrische Kfz-Kühlnilttelpumpe zu schaffen, die eine einfache und preiswerte Montage des Rotors auf der Rotorachse erlaubt und eine hohe Lebensdauer gewährt.The object of the invention is in contrast to provide an electric car Kühlnilttelpumpe, which allows a simple and inexpensive installation of the rotor on the rotor axis and ensures a long life.
Diese Aufgabe wird erfindungsgemäß gelöst durch eine elektrisch angetriebene Kfz-Kühlmittelpumpe mit den Merkmalen des Patentanspruches 1.This object is achieved by an electrically driven automotive coolant pump with the features of claim 1.
Die erfindungsgemäße Kühlmittelpumpe weist eine Spalttopf-Motoranordnung auf, mit einem Pumpenrotor mit Pumpenschaufeln, der durch ein Gleitlager auf einer feststehenden metallischen Rotorachse gelagert ist. Die Pumpenschaufeln des Pumpenrotors sind axial im Bereich einer Gleitlagerhülse angeordnet und sind mit einem metallischen Anschlagring am distalen Ende der metallischen Rotorachse fixiert, wobei der metallische Anschlagring mit der metallischen Rotorachse verschweißt ist. Der Anschlagring kann bevorzugt als geschlossener- oder offener Anschlagring ausgebildet sein, und vor der Fixierung, die mittels eines Schweißprozesses durchgeführt wird, montiert werden.The coolant pump according to the invention has a split-pot motor arrangement, with a pump rotor with pump blades, which is mounted by a sliding bearing on a fixed metallic rotor axis. The pump blades of the pump rotor are arranged axially in the region of a plain bearing sleeve and are fixed with a metallic stop ring at the distal end of the metallic rotor axis, wherein the metallic stop ring is welded to the metallic rotor axis. The stop ring may preferably be formed as a closed or open stop ring, and before the fixation, which is carried out by means of a welding process, are mounted.
Der Anschlagring weist eine axiale Stärke von mindestens 0,9 mm auf. Diese Materialstärke weist, im Gegensatz zu konventionellen Anschlagringen, die idealerweise eine typische axiale Stärke von 3/10 mm aufweisen, eine höhere Sicherheit gegenüber einem Verschleiß in Form von Materialabtrag, der erheblich durch Fremdkörper im Kühlmittel verstärkt wird, auf.The stop ring has an axial thickness of at least 0.9 mm. This material thickness, in contrast to conventional stop rings, which ideally have a typical axial thickness of 3/10 mm, a higher resistance to wear in the form of material removal, which is significantly enhanced by foreign bodies in the coolant on.
Schweißverbindungen lassen sich durch Automaten realisieren. Hierdurch ergibt sich bei einer einfachen und vollautomatischen Produktion eine preiswerte Kfz-Kühlmittelpumpe, Aufgrund der axialen Montagerichtung des Anschlagringes können verschiedenartige und komplexe Schaufel-Geometrien montiert werden, die die Montage des Anschlagringes nicht beeinträchtigen. Da die Fixierung des Anschlagringes ausschließlich mittels eines Schweißprozesses erfolgt, muss bei der Auswahl und Dimensionierung des Anschlagringes nicht auf seine Elastizität Rücksicht genommen werden. Somit können auch Anschlagringe unterschiedlicher, bevorzugt größerer Stärke zur Pumpenrotor-Fixierung verwendet werden, was zur Folge hat, dass einerseits ein kompletter Arbeitsschritt, und zwar die Überprüfung der Haltekraft entfallen kann, und andererseits der Anschlagring aufgrund seiner größeren axialen Stärke eine längere Lebensdauer und Zuverlässigkeit gewährleistet.Welded joints can be realized by machines. This results in a simple and fully automatic production, a low-cost automotive coolant pump, Due to the axial mounting direction of the stop ring various and complex blade geometries can be mounted that do not affect the installation of the stop ring. Since the fixation of the stop ring takes place exclusively by means of a welding process, it is not necessary to take his elasticity into account in the selection and dimensioning of the stop ring. Thus, stop rings different, preferably greater strength can be used for pump rotor fixation, with the result that on the one hand a complete step, namely the verification of the holding force can be omitted, and on the other hand, the stop ring due to its greater axial strength longer life and reliability guaranteed.
Zudem führt die Kombination aus axialer Stärke des Anschlagringes und der Fixierung mittels Schweißen an der Rotorachse zu einer zusätzlichen Sicherung im Falle eines Bruches des Anschlagringes. Aufgrund der Verschweißung bleibt der Anschlagring trotz eines Bruches mindestens teilweise an der Rotorachse stehen, so dass der Rotorkörper weiterhin auf der Rotorachse positioniert bleibt.In addition, the combination of axial strength of the stop ring and the fixation by welding on the rotor axis leads to an additional backup in case of breakage of the stop ring. Due to the welding of the stop ring remains despite a break at least partially on the rotor axis, so that the rotor body remains positioned on the rotor axis.
Gemäß einer bevorzugten Ausgestaltung, ist die Gleitlagerhülse formschlüssig in den Rotorkörper eingespritzt, wobei die Gleitlagerhülse mit dem Anschlagring ein Axiallager bildet.According to a preferred embodiment, the plain bearing sleeve is positively injected into the rotor body, wherein the plain bearing sleeve forms a thrust bearing with the stop ring.
Vorzugsweise weist die elektrische Kfz-Kühlmittelpumpe einen axialen Spalt zwischen Rotorkörper und Anschlagring auf, der mindestens 0,5 mm beträgt.Preferably, the electric motor vehicle coolant pump has an axial gap between the rotor body and the stop ring, which is at least 0.5 mm.
Die elektrische Kfz-Kühlmittelpumpe weist einen metallischen Anschlagring auf, der vorzugsweise durch Laserschweißen an der Rotorachse fixiert wird. Beim Laserschweißen wir ein fokussierter Laserstrahl auf die zu bearbeitende Fügestelle gerichtet. Dadurch erzielt man gegenüber konventionellen Schweißverfahren, wie dem Schutzgasschweißprozess, eine gezielte Wärmezubringung, die zu einem geringeren Verzug des Materials führt. Des Weiteren können höhere Schweißgeschwindigkeiten erzielt werden, da der Laserschweißprozess vollständig automatisierbar ist.The electric vehicle coolant pump has a metallic stop ring, which is preferably fixed by laser welding to the rotor axis. In laser welding, a focused laser beam is directed at the joint to be machined. As a result, compared with conventional welding methods, such as the inert gas welding process, a targeted heat transfer, which leads to a lower distortion of the material. Furthermore, higher welding speeds can be achieved because the laser welding process is fully automated.
Gemäß einer bevorzugten Ausgestaltung, ist die metallische axiale Rotorachse drehfest und formschlüssig in den Spalttopf eingebracht.According to a preferred embodiment, the metallic axial rotor axis is rotatably and positively inserted into the containment shell.
Die elektrische Kfz-Kühlmittelpumpe weist vorzugsweise einen Aufbau auf, wobei für den Pumpenrotor und den Motorrotor ein einziges Gehäuse aus Kunststoff vorgesehen ist, das einstückig mittels eines Spritzgussprozesses hergestellt wird.The electric vehicle coolant pump preferably has a structure, wherein a single housing made of plastic is provided for the pump rotor and the motor rotor, which is produced in one piece by means of an injection molding process.
Die elektrische Kfz-Kühlmittelpumpe weist vorzugsweise ein Gehäuse und einen Spalttopf auf, welche als ein einstückiges Bauteil ausgebildet sind.The electric vehicle coolant pump preferably has a housing and a containment shell, which are formed as a one-piece component.
Nachfolgend wird ein Ausführungsbeispiel der Erfindung anhand der Zeichnung näher erläutert.An embodiment of the invention will be explained in more detail with reference to the drawing.
Es zeigt:
-
Fig. 1 einen axialen Schnitt durch eine erfindungsgemäße Kühlmittelpumpe
-
Fig. 1 an axial section through a coolant pump according to the invention
Der Kunststoff-Pumpenrotor 20 weist axial im Bereich der Metall-Gleitlagerhülse 22 angeordnete Pumpenschaufeln 50 auf. Der Pumpenrotor 20 besteht aus einem einstückigen Kunststoffkörper und weist in einem zylindrischen Motorrotor 23 mehrere eingebettete Permanentmagnete auf, so dass eine mehrpolige Magnetisierung des Motorrotors 23 vorliegt.The
Im Motorbetrieb wird der Motorrotor 23 durch das in den Magnetspulen 60 erzeugte rotatorisch wandernde Magnetfeld mitgeschleppt und in Drehung versetzt.During engine operation, the
An dem freien Ende der Rotorachse 26 ist der Pumpenrotor 20 mittels eines geschlossenen Anschlagringes 40 in axialer Ausrichtung fixiert, wobei ein axialer Spalt 28 von 0,5 mm zum Pumpenrotor 20 verbleibt. Die Befestigung des Anschlagringes 40 erfolgt an der Rotorachse 26 durch einen Schweißpunkt 42. Vorteilhafterweise wird der Schweißpunkt 42 am Anschlagring 40, der eine axiale Stärke von mindestens 0,9 mm aufweist, durch Laserschweißen gesetzt.At the free end of the
Der Zusammenbau der Kühlmittelpumpe 10 erfolgt von dem freien Ende der Rotorachse 26 aus, wobei das Bauteil 11, bestehend aus Gehäuse 12 und Spalttopf 14, sowie die feststehend angeordnete Rotorachse 26 eine vertikale oder horizontale Ausrichtung aufweisen können. Das Zusammenführen des Bauteils 11 und des Pumpenrotors 20 erfolgt über einen Aufsetz- oder Aufziehschritt des Pumpenrotors 20 über die axial feststehende Rotorachse 26, bis die ringförmige Stirnseite der Gleitlagerhülse 22 an der Stirnwand 16 des Spalttopfes 14 anschlägt. Bei der vertikalen Montage wird der Pumpenrotor 20 oberhalb des Bauteils 11 und der Rotorachse 26 positioniert, wobei der Pumpenrotor 20 mittels der Schwerkraft auf der Rotorachse 26 abgesetzt wird. Bei der horizontalen Montage wird der Pumpenrotor 20 infolge der zwischen dem Motorrotor 23 und den Magnetspulen 60 wirkenden axialen magnetischen Kräfte auf der Rotorachse 26 axial ausgerichtet.The assembly of the
In einem anschließenden Montageschritt wird der Anschlagring 40 über die Rotorachse 26 in axialer Richtung bis zum Anschlag an den Pumpenrotor 20 aufgezogen. Anschließend wird mittels einer Vorrichtung eine axiale Verschiebung des Pumpenrotors 20 auf der Rotorachse 26 vorgenommen, durch die ein definierter axialer Spalt 28 zum Anschlagring 42 gebildet wird. Diese vorgenommene Verschiebung des Pumpenrotors 20 und des Anschlagringes 42 auf der Rotorachse 26 wird bis zur Fixierung des Anschlagringes 42 mit der Rotorachse 26 mittels eines Schweißprozesses, der zur Bildung eines Schweißpunktes 42 führt, durch die Vorrichtung aufrechterhalten. Der Spalt zwischen der Rotorachse 26 und dem Anschlagring 42 beträgt mindestens 0,5 mm.In a subsequent assembly step, the
Claims (7)
- Electrical automotive coolant pump (10) for cooling a motor vehicle internal combustion engine, comprising
a can-motor assembly,
a pump rotor (20) with pump vanes (50) and a sliding bearing sleeve (22) mounted on a stationary metallic rotor axis (26), wherein the pump vanes (50) of the pump rotor (20) are arranged axially in the region of the slide bearing sleeve (22), and
a metallic stop ring (40) at the distal end of the rotor axis (26),
characterized in that
the stop ring (40) has an axial thickness of at least 0.9 mm, and
the stop ring (40) is welded to the rotor axis (26). - Electrical automotive coolant pump (10) of claim 1, wherein the slide-bearing sleeve (22) is positively injected into a rotor body (21) comprising the pump vanes (50).
- Electrical automotive coolant pump (10) of claim 1 or 2, wherein an axial gap (28) between the rotor body (21) and stop ring (40) has a gap width of at least 0.5 mm.
- Electrical automotive coolant pump (10) of one of the preceding claims, wherein the metallic stop ring (40) is fixed to the rotor axis (26) by laser welding.
- Electrical automotive coolant pump (10) of one of the preceding claims, wherein the metallic axial rotor axis (26) is positively inserted into a can (14) for rotation with the same.
- Electrical automotive coolant pump (10) of one of the preceding claims, wherein a single housing (12) made of plastic material is provided for the pump rotor (20) and the motor rotor (23), which housing is manufactured integrally by an injection molding process.
- Electrical automotive coolant pump (10) of claim 6, wherein the housing (12) and the can (14) form an integrally formed component (11).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09164927.7A EP2273123B9 (en) | 2009-07-08 | 2009-07-08 | Axial bearing for a pump wheel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09164927.7A EP2273123B9 (en) | 2009-07-08 | 2009-07-08 | Axial bearing for a pump wheel |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2273123A1 EP2273123A1 (en) | 2011-01-12 |
EP2273123B1 true EP2273123B1 (en) | 2016-10-05 |
EP2273123B9 EP2273123B9 (en) | 2018-03-21 |
Family
ID=41396455
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP09164927.7A Active EP2273123B9 (en) | 2009-07-08 | 2009-07-08 | Axial bearing for a pump wheel |
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EP (1) | EP2273123B9 (en) |
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JP6306734B2 (en) * | 2014-03-06 | 2018-04-04 | ピアーブルグ パンプ テクノロジー ゲゼルシャフト ミット ベシュレンクテル ハフツングPierburg Pump Technology GmbH | Electric liquid pump for automobile |
EP3006742B1 (en) | 2014-10-08 | 2021-12-01 | Pierburg Pump Technology GmbH | Motor vehicle electric coolant pump |
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CN106194756B (en) * | 2015-04-30 | 2020-02-14 | 浙江三花汽车零部件有限公司 | Centrifugal pump manufacturing method |
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US10584705B2 (en) | 2015-04-30 | 2020-03-10 | Zhejiang Sanhua Automotive Components Co., Ltd. | Centrifugal pump and method for manufacturing the same |
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DE102020126720A1 (en) | 2020-10-12 | 2022-04-14 | Volkswagen Aktiengesellschaft | Device with a housing, an axle embedded in the housing with a positive fit and a rotor rotatably mounted on the axle |
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DE102004022944B3 (en) | 2004-05-10 | 2005-08-18 | Jobra Gmbh | Support plate for lamella grinding disks comprises an outer flange for grinding lamellae and an inner part with a receiving bore for a detachable fixing ring of the drive shaft of a motor |
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DE102004047635A1 (en) | 2004-09-30 | 2006-04-06 | Webasto Ag | Electrically operated pump for conveying fluids, has inner rotor arranged in fluid guiding region of housing, and impeller directly connected with inner rotor, where impeller is not separately stored in pump |
EP1657446A2 (en) | 2004-11-12 | 2006-05-17 | Geräte- und Pumpenbau GmbH, Dr. Eugen Schmidt | Regulated water pump |
DE102005037192A1 (en) | 2005-08-06 | 2007-02-08 | Witte-Velbert Gmbh & Co. Kg | Bracing device assembled from kit for fixing two parts at a distance apart has components associated with each other in kit containing transport securing part formed by securing cap associated with base body |
DE102005039557A1 (en) | 2005-08-22 | 2007-03-01 | Robert Bosch Gmbh | rotary pump |
US20070177993A1 (en) | 2006-01-31 | 2007-08-02 | Asian Kogyo Kabushiki Kaisha | Electric pump |
DE102006034385A1 (en) | 2006-07-25 | 2008-01-31 | Robert Bosch Gmbh | Fluid pump and method for producing a fluid pump |
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2009
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US2898861A (en) | 1954-04-06 | 1959-08-11 | Creamery Package Mfg Co | Pump construction |
US2942555A (en) | 1957-04-15 | 1960-06-28 | Rinaldo F Pezzillo | Combination pump and motor |
DE1294936B (en) | 1964-03-03 | 1969-05-14 | Teikoku Denki Seisakusho Kk | Stirring device |
US3288073A (en) | 1964-12-01 | 1966-11-29 | Pall Corp | Canned pump having reduced hydraulic thrust |
DE2011852A1 (en) | 1969-03-25 | 1970-10-01 | Vestinghouse Electric Corp., Pittsburgh, Pa. (V.St.A.) | Centrifugal pump with vertical shaft |
DE2160861A1 (en) | 1970-12-11 | 1972-06-22 | Inventio Ag | Lubricating and filtering device for circulation pump |
US3850550A (en) | 1971-08-05 | 1974-11-26 | Hydr O Matic Pump Co | Centrifugal pump and motor |
GB1437532A (en) | 1973-06-29 | 1976-05-26 | Sealed Motor Const Co Ltd | Pump units |
DE8236337U1 (en) | 1982-12-24 | 1984-05-17 | Klöckner-Humboldt-Deutz AG, 5000 Köln | CENTRIFUGAL PUMP |
DE3434830C1 (en) | 1984-09-22 | 1986-04-30 | Klein, Schanzlin & Becker Ag, 6710 Frankenthal | Centrifugal pump with riser |
DE3534485A1 (en) | 1985-09-27 | 1987-04-02 | Bosch Gmbh Robert | MANUAL OPERATING PUMP FOR CONVEYOR PUMPS OF FUEL INJECTION SYSTEMS FOR INTERNAL COMBUSTION ENGINES |
DE3639719A1 (en) | 1986-11-20 | 1988-06-01 | Reinecker Heyko | Canned magnetic pump |
DE3716098A1 (en) | 1987-05-14 | 1988-11-24 | Skf Gmbh | Drive device for pumps or the like |
DE4108257A1 (en) | 1990-03-17 | 1991-09-19 | Allweiler Ag | Magnet coupling pump - incorporates radial and axially supported shaft carrying flywheel with at least one passage from suction chamber to pressure chamber |
DE4217457A1 (en) | 1991-05-31 | 1992-12-03 | Powerdyne Corp | ENGINE PUMP |
DE4411960C2 (en) | 1994-04-07 | 2001-07-12 | Pierburg Ag | Liquid pump driven by an electronically commutated electric motor |
DE19611512A1 (en) | 1996-03-23 | 1997-09-25 | Pierburg Ag | Electrically powered air pump |
JPH10311293A (en) | 1997-05-13 | 1998-11-24 | Japan Servo Co Ltd | Canned motor pump |
DE19843020C1 (en) | 1998-09-19 | 2000-05-04 | Bosch Gmbh Robert | Electro-motoric driven fluid pump, having weld ring which surrounds pump part in radial extrusion, providing force acting axial in direction towards motor |
DE19934382A1 (en) | 1999-07-22 | 2001-02-01 | Bosch Gmbh Robert | Liquid pump |
FR2809777A1 (en) | 2000-05-30 | 2001-12-07 | Jeumont Ind | Motorized mixer for circulating fluid inside container comprises motor and stator, rotor carrying circulating blades, and passive magnetic bearing between permanent magnets |
DE10346295A1 (en) | 2002-10-07 | 2004-04-22 | Denso Corp., Kariya | Glow plug with a combustion pressure sensor and structure and method for its installation |
DE10251461A1 (en) | 2002-11-05 | 2004-05-13 | BSH Bosch und Siemens Hausgeräte GmbH | Axial pump for domestic appliances, has an integrated electric motor rotor and impeller assembly drawing the liquid through a passage in the rotor |
EP1557566A1 (en) | 2004-01-26 | 2005-07-27 | Nidec Shibaura Corporation | Centrifugal pump for washing apparatus |
DE102004022944B3 (en) | 2004-05-10 | 2005-08-18 | Jobra Gmbh | Support plate for lamella grinding disks comprises an outer flange for grinding lamellae and an inner part with a receiving bore for a detachable fixing ring of the drive shaft of a motor |
DE102004047637A1 (en) | 2004-09-30 | 2006-04-06 | Webasto Ag | Electrically driven pump with outer rotor, comprises housing separating fluid flow end from non-fluid flow end, outer rotor in fluid flow end, and stator in non-fluid flow end |
DE102004047635A1 (en) | 2004-09-30 | 2006-04-06 | Webasto Ag | Electrically operated pump for conveying fluids, has inner rotor arranged in fluid guiding region of housing, and impeller directly connected with inner rotor, where impeller is not separately stored in pump |
EP1657446A2 (en) | 2004-11-12 | 2006-05-17 | Geräte- und Pumpenbau GmbH, Dr. Eugen Schmidt | Regulated water pump |
DE102005037192A1 (en) | 2005-08-06 | 2007-02-08 | Witte-Velbert Gmbh & Co. Kg | Bracing device assembled from kit for fixing two parts at a distance apart has components associated with each other in kit containing transport securing part formed by securing cap associated with base body |
DE102005039557A1 (en) | 2005-08-22 | 2007-03-01 | Robert Bosch Gmbh | rotary pump |
US20070177993A1 (en) | 2006-01-31 | 2007-08-02 | Asian Kogyo Kabushiki Kaisha | Electric pump |
DE102006034385A1 (en) | 2006-07-25 | 2008-01-31 | Robert Bosch Gmbh | Fluid pump and method for producing a fluid pump |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10519977B2 (en) * | 2015-05-20 | 2019-12-31 | Zhejiang Sanhua Automotive Components Co., Ltd. | Centrifugal pump |
Also Published As
Publication number | Publication date |
---|---|
EP2273123B9 (en) | 2018-03-21 |
EP2273123A1 (en) | 2011-01-12 |
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