EP1256722A2 - Kreiselpumpe - Google Patents
Kreiselpumpe Download PDFInfo
- Publication number
- EP1256722A2 EP1256722A2 EP02450114A EP02450114A EP1256722A2 EP 1256722 A2 EP1256722 A2 EP 1256722A2 EP 02450114 A EP02450114 A EP 02450114A EP 02450114 A EP02450114 A EP 02450114A EP 1256722 A2 EP1256722 A2 EP 1256722A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- impeller
- pump
- pump according
- magnets
- drive
- 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
Links
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
- F04D13/0666—Units comprising pumps and their driving means the pump being electrically driven the motor being of the plane gap type
Definitions
- the invention relates to a pump for liquid media, in particular cooling water pump for internal combustion engines with a disc rotor Trained electric motor to drive the pump with a
- the impeller of the pump is in direct connection.
- an essential criterion is absolute reliability, because if the cooling system fails, serious damage to the Internal combustion engine can occur.
- Next is in the sense of a cost reduction and striving for the greatest possible freedom from maintenance, as far as possible without the sealing of rotating components. Other requirements affect the available installation space, which in many cases is restricted.
- DE 196 17 495 A relates to a fuel pump for motor vehicles, the one Has rotor, on the one hand as a disc rotor of an electric motor and on the other serves as a pump impeller.
- the outer circumference of the Rotor blades are designed to convey the medium.
- the pump can only achieve a limited degree of efficiency because the pump geometry is less than optimal. It is also the classic disc runner required the current to the electrical windings in the disc via brushes that are sealed against the flow medium Need to become.
- Electric motors are known from DE 16 13 626 A or DE 25 56 631 A, drive the pumps or fans and which have a winding in the area of the Impeller is arranged.
- the torque of such motors is limited and fail-safe cooling water pumps for motors from Motor vehicles are not easily shown.
- the object of the present invention is to provide a pump in which this Disadvantages are avoided and the simple with the smallest possible size Has structure and can be operated fail-safe.
- these objects are achieved in that on the outer circumference the impeller of the pump a drive flange in the radial direction to the outside protrudes in which magnets or windings are molded to make contact with the impeller drive.
- a drive flange in the radial direction to the outside protrudes in which magnets or windings are molded to make contact with the impeller drive.
- Such a pump has only one movable one Component, namely the impeller with the integrally formed drive flange. by virtue of The large diameter of the drive flange can cause a large drive torque can be reached, but the dimension in the axial direction of the pump is very low.
- the electric motor of the pump according to the invention is there not designed as a classic disc runner, in which in the disc-shaped Rotor flat-pressed solenoids are arranged using brushes Power is supplied, but it is a permanent magnet DC motor or designed as an asynchronous three-phase motor. In both cases Torque caused by an external magnetic field generated in the stator becomes. If one assumes that the motor of the pump is basically with DC is driven, so the rotating field is in any case by an electronic Circuit generated. This has the added benefit that the performance of the Pump can be easily adapted to the respective need.
- a particularly preferred embodiment variant provides that the electric motor is designed as a wet runner. This means that the moving inside the pump Parts are not sealed, which means that the gap between flooded the stator and the rotor of the pump with the medium to be pumped is.
- the impeller is designed as an axial-radial impeller, the opposite on the inflow side Side has a flange surface, integrally formed on the blades are, and the drive flange is arranged radially outside of the flange surface.
- the drive flange is arranged offset in the axial direction. In this way it is possible to use the outflow housing radially outside of the impeller unobstructed and at the same time a part between the outflow housing and the drive flange of the stator.
- the structure of the pump according to the invention is particularly simplified and made inexpensive if the impeller is made of plastic and the Magnets are molded as inserts in the injection molding process.
- Such a solution is also characterized by a robust mechanical structure.
- the injection molding process must take into account that the magnets only be heated within the permissible limits to demagnetize to prevent.
- the magnets can only be used after Manufacturing the impeller can be magnetized in situ, so that the injection molding process is not subject to any restrictions.
- a common coolant which is composed of water and glycol
- a common coolant which is composed of water and glycol
- the motor cover 3 carries an axis 5 in the axial area the impeller 6 is mounted.
- the axis 5 is from a collar 4 of the engine cover 3 held and is used as an insert in the manufacture of the engine cover 3rd mitgespritzt.
- the impeller 6 is designed as an axial-radial impeller, that is, that through the inflow housing 7 formed by the hydraulic cover 1, the material to be conveyed Medium flows in the axial direction.
- the flow channels 8 of the impeller 6 in which blades 9 are arranged the flow direction of the Medium deflected radially outwards so that this in the outflow housing 10th is promoted.
- Via a helical lead out of the hydraulic cover 1 Outflow pipe 11, the medium is discharged.
- a plain bearing bush 12 is formed, which at the production can be encapsulated.
- the impeller 6 can be injection molded in two components getting produced.
- a screw 13 secures the impeller 6 on the axis 5.
- the back of the flow channels 8 of the impeller 6 forms a disc 14 which bulges towards the inside of the hub 15 and on the outside essentially in one towards the axis 16 of the impeller 6 vertical axis.
- On the outer periphery of the disk 14 connects a tubular portion 17, one at its other end Carries drive flange 18 which extends outwards.
- magnets 19 are molded as inserts that the Form the rotor of the electric motor.
- the magnets 19 are rare earth magnets on the Basis of Nd-Fe-B or Pr-Fe-B, which have an extremely high field strength exhibit.
- Plastic-bonded magnets, so-called polymer magnets can also be used be used by powder pressing a mixture of magnetic particles made with a binder based on epoxy resin but also by injection molding a compound. That way you can high magnetic properties can be achieved at low cost.
- the windings 20 attached to the stator, which is essentially a disc parallel to the drive flange 18 forms.
- a yoke disk 21 is provided on the opposite side of the drive flange 18 Winding 20, a yoke disk 21 is provided.
- the yoke washers 21 and 22 can be conventional Be constructed from sheet metal or from plastic rings with molded Steel particles are made.
- the winding 20 of the stator itself is iron-free, which makes it special compact dimensions.
- the engine of the invention Pump is supplied with power via a plug 23, which is not shown Motor electronics for electronic commutation can be in the range of Pump or be housed outside. Alternatively, the engine electronics for example, be cast together with the winding 20.
- FIG. 2 differs from that of FIG. 1 in that that in addition to the drive flange 18, which projects outward from the impeller 6, a further drive flange 28 is provided, which is behind the stator 20 is arranged and substantially symmetrical to the first drive flange 18 is trained.
- the screw 13 is aerodynamically designed as a spinner. Possibly can be provided in the inflow housing 7 guide vanes, not shown here be to increase hydraulic efficiency.
- the cooling water pump according to the invention can be like a conventional coolant pump be attached to the internal combustion engine as a plug-in module.
- the pump is designed as a wet runner, that is, the entire interior is flooded with the coolant or the medium to be pumped no stuffing boxes, mechanical seals, oil seals or the like required, which lowers costs and increases operational safety.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
- Fig. 1
- eine erste Ausführungsvariante der Erfindung im Schnitt und
- Fig. 2
- eine weitere Ausführungsvariante der Erfindung in einem Teilschnitt.
Claims (9)
- Pumpe für flüssige Medien, insbesondere Kühlwasserpumpe für Brennkraftmaschinen mit innerer Verbrennung mit einem als Scheibenläufer ausgebildeten Elektromotor zum Antrieb der Pumpe, der mit einem Laufrad (6) der Pumpe in unmittelbarer Verbindung steht, dadurch gekennzeichnet, dass am äußeren Umfang des Laufrads der Pumpe ein Antriebsflansch (18) in Radialrichtung nach außen vorragt, in dem Magnete (19) oder Wicklungen (20) eingeformt sind, um das Laufrad (6) berührungslos anzutreiben.
- Pumpe nach Anspruch 1, dadurch gekennzeichnet, dass der Elektromotor elektronisch kommutiert ist.
- Pumpe nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass der Elektromotor als Nassläufer ausgebildet ist.
- Pumpe nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das Laufrad (6) als Axial-Radial-Laufrad ausgebildet ist, das an der der Einströmseite gegenüberliegenden Seite eine Flanschfläche aufweist, an der Schaufeln angeformt sind, und dass der Antriebsflansch (18) radial außerhalb der Flanschfläche angeordnet ist.
- Pumpe nach Anspruch 4, dadurch gekennzeichnet, dass der Antriebsflansch (18) in Axialrichtung versetzt angeordnet ist.
- Pumpe nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass das Laufrad (6) aus Kunststoff hergestellt ist und dass die Magnete (19) als Einlegeteile im Spritzgussverfahren eingeformt sind.
- Pumpe nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass das Laufrad (6) aus Kunststoff hergestellt ist und dass die Magnete (19) als kunststoffgebundene Magnete ausgebildet sind.
- Pumpe nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass mit dem Laufrad (6) ein weiterer Antriebsflansch (28) verbunden ist.
- Pumpe nach Anspruch 8, dadurch gekennzeichnet, dass die beiden Antriebsflansche (18, 28) beidseits des Stator (20) symmetrisch angeordnet sind.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0075901A AT414064B (de) | 2001-05-11 | 2001-05-11 | Pumpe für flüssige medien |
AT7592001 | 2001-05-11 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1256722A2 true EP1256722A2 (de) | 2002-11-13 |
EP1256722A3 EP1256722A3 (de) | 2004-01-02 |
EP1256722B1 EP1256722B1 (de) | 2007-02-21 |
Family
ID=3680508
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02450114A Expired - Lifetime EP1256722B1 (de) | 2001-05-11 | 2002-05-07 | Kreiselpumpe |
Country Status (4)
Country | Link |
---|---|
US (1) | US6835051B2 (de) |
EP (1) | EP1256722B1 (de) |
AT (1) | AT414064B (de) |
DE (1) | DE50209511D1 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007048019A1 (de) | 2007-10-06 | 2009-04-09 | Bayerische Motoren Werke Aktiengesellschaft | Pumpe |
DE102008064162A1 (de) * | 2008-12-19 | 2010-07-01 | Bühler Motor GmbH | Kreiselpumpe mit einer feststehenden Achse |
EP1902220B1 (de) * | 2005-07-04 | 2012-09-12 | Behr GmbH & Co. KG | Laufrad |
WO2013107804A3 (de) * | 2012-01-20 | 2013-10-10 | Yasa Motors Poland Sp. Z O.O. | Nassläuferpumpe mit permanentmagnet |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6908291B2 (en) * | 2002-07-19 | 2005-06-21 | Innovative Mag-Drive, Llc | Corrosion-resistant impeller for a magnetic-drive centrifugal pump |
US6765319B1 (en) | 2003-04-11 | 2004-07-20 | Visteon Global Technologies, Inc. | Plastic molded magnet for a rotor |
DE102005015213A1 (de) * | 2005-04-02 | 2006-10-05 | Pierburg Gmbh | Nassläuferpumpe |
ITRE20050060A1 (it) * | 2005-05-26 | 2006-11-27 | Emak Spa | Aspiratore portatile per lavori di pulizia |
CN101341340B (zh) * | 2005-12-22 | 2011-12-28 | 山本电气株式会社 | 扁平型无刷电动泵及使用了该电动泵的车辆用电动水泵组 |
US20080112824A1 (en) * | 2006-11-09 | 2008-05-15 | Nidec Shibaura Corporation | Pump |
CN101185858A (zh) * | 2007-09-19 | 2008-05-28 | 秦彪 | 小型臭氧气水混合泵 |
DE102008064099B4 (de) * | 2008-12-19 | 2016-05-04 | Bühler Motor GmbH | Kreiselpumpe mit einer feststehenden Achse |
WO2011022557A2 (en) * | 2009-08-19 | 2011-02-24 | Aspen Motion Technologies, Inc. D/B/A | Magnetic drive pump assembly with integrated motor |
EP2561232B1 (de) * | 2010-04-19 | 2015-12-16 | Pierburg Pump Technology GmbH | Elektrische kfz-kühlmittelpumpe |
PL2500575T5 (pl) * | 2011-03-12 | 2022-10-17 | Grundfos Management A/S | Pompa obiegowa do instalacji grzewczej |
DE102012200807B4 (de) * | 2012-01-20 | 2014-09-25 | Yasa Motors Poland Sp. z.o.o. | Nassläuferpumpe mit Gleitlager |
DE102012200803B4 (de) * | 2012-01-20 | 2015-04-02 | Yasa Motors Poland Sp. z.o.o. | Nassläuferpumpe |
DE102013018317A1 (de) * | 2013-10-30 | 2015-04-30 | Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg | Elektrische Maschine |
DE102016214700A1 (de) * | 2016-08-08 | 2018-02-08 | Efficient Energy Gmbh | Elektrischer Scheibenläufer mit einem Druckreduzierer für den Motorspalt |
US11323003B2 (en) | 2017-10-25 | 2022-05-03 | Flowserve Management Company | Compact, modular, pump or turbine with integral modular motor or generator and coaxial fluid flow |
KR20230086165A (ko) * | 2021-12-08 | 2023-06-15 | 현대자동차주식회사 | 전동식 워터 펌프 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1613626A1 (de) | 1967-03-09 | 1970-05-14 | Eberspaecher J | Elektromotor |
DE2556631A1 (de) | 1974-12-19 | 1976-07-01 | Ford Werke Ag | Motorpumpe |
DE19617495A1 (de) | 1996-05-02 | 1997-11-06 | Mannesmann Vdo Ag | Pumpe, insbesondere Kraftstoffpumpe |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2782721A (en) * | 1949-08-19 | 1957-02-26 | Howard T White | Motor driven pumps |
US4644202A (en) * | 1985-04-15 | 1987-02-17 | Rockwell International Corporation | Sealed and balanced motor and fluid pump system |
US5117141A (en) * | 1990-07-30 | 1992-05-26 | The United States Of America As Represented By Department Of Energy | Disc rotors with permanent magnets for brushless DC motor |
US5332374A (en) * | 1992-12-30 | 1994-07-26 | Ralph Kricker | Axially coupled flat magnetic pump |
DE4341564A1 (de) * | 1993-12-07 | 1995-06-08 | Bosch Gmbh Robert | Aggregat zum Fördern von Kraftstoff aus einem Vorratstank zur Brennkraftmaschine eines Kraftfahrzeuges |
DE19646617A1 (de) * | 1996-11-12 | 1998-05-14 | Pierburg Ag | Kühlmittelpumpe mit elektrisch kommutiertem Elektromotor |
US6034465A (en) * | 1997-08-06 | 2000-03-07 | Shurfle Pump Manufacturing Co. | Pump driven by brushless motor |
US6132186A (en) * | 1997-08-06 | 2000-10-17 | Shurflo Pump Manufacturing Co. | Impeller pump driven by a dynamo electric machine having a stator comprised of a mass of metal particles |
-
2001
- 2001-05-11 AT AT0075901A patent/AT414064B/de not_active IP Right Cessation
-
2002
- 2002-05-07 DE DE50209511T patent/DE50209511D1/de not_active Expired - Lifetime
- 2002-05-07 EP EP02450114A patent/EP1256722B1/de not_active Expired - Lifetime
- 2002-05-09 US US10/140,948 patent/US6835051B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1613626A1 (de) | 1967-03-09 | 1970-05-14 | Eberspaecher J | Elektromotor |
DE2556631A1 (de) | 1974-12-19 | 1976-07-01 | Ford Werke Ag | Motorpumpe |
DE19617495A1 (de) | 1996-05-02 | 1997-11-06 | Mannesmann Vdo Ag | Pumpe, insbesondere Kraftstoffpumpe |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1902220B1 (de) * | 2005-07-04 | 2012-09-12 | Behr GmbH & Co. KG | Laufrad |
US8337157B2 (en) | 2005-07-04 | 2012-12-25 | Behr Gmbh & Co. Kg | Blower wheel |
DE102007048019A1 (de) | 2007-10-06 | 2009-04-09 | Bayerische Motoren Werke Aktiengesellschaft | Pumpe |
DE102008064162A1 (de) * | 2008-12-19 | 2010-07-01 | Bühler Motor GmbH | Kreiselpumpe mit einer feststehenden Achse |
US8353687B2 (en) | 2008-12-19 | 2013-01-15 | Dohler Motor GmbH | Rotary pump with a fixed shaft |
DE102008064162B4 (de) * | 2008-12-19 | 2013-06-06 | Bühler Motor GmbH | Kreiselpumpe mit einer feststehenden Achse |
WO2013107804A3 (de) * | 2012-01-20 | 2013-10-10 | Yasa Motors Poland Sp. Z O.O. | Nassläuferpumpe mit permanentmagnet |
Also Published As
Publication number | Publication date |
---|---|
EP1256722B1 (de) | 2007-02-21 |
DE50209511D1 (de) | 2007-04-05 |
AT414064B (de) | 2006-08-15 |
ATA7592001A (de) | 2005-11-15 |
US20020166520A1 (en) | 2002-11-14 |
EP1256722A3 (de) | 2004-01-02 |
US6835051B2 (en) | 2004-12-28 |
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