EP1256722B1 - Pompe centrifugale - Google Patents

Pompe centrifugale Download PDF

Info

Publication number
EP1256722B1
EP1256722B1 EP02450114A EP02450114A EP1256722B1 EP 1256722 B1 EP1256722 B1 EP 1256722B1 EP 02450114 A EP02450114 A EP 02450114A EP 02450114 A EP02450114 A EP 02450114A EP 1256722 B1 EP1256722 B1 EP 1256722B1
Authority
EP
European Patent Office
Prior art keywords
impeller
pump
pump according
magnets
flange
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.)
Expired - Fee Related
Application number
EP02450114A
Other languages
German (de)
English (en)
Other versions
EP1256722A3 (fr
EP1256722A2 (fr
Inventor
Markus Ing. c/o Sidrag AG Kundensupport Heim
Herbert Ing. Gösweiner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TCG Unitech AG
Original Assignee
TCG Unitech AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TCG Unitech AG filed Critical TCG Unitech AG
Publication of EP1256722A2 publication Critical patent/EP1256722A2/fr
Publication of EP1256722A3 publication Critical patent/EP1256722A3/fr
Application granted granted Critical
Publication of EP1256722B1 publication Critical patent/EP1256722B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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 according to the preamble of patent claim 1.
  • DE 196 17 495 A relates to a fuel pump for motor vehicles, which has a rotor which serves on the one hand as a pancake of an electric motor and on the other hand as a pump impeller.
  • blades are formed on the outer periphery of the rotor to convey the medium.
  • the pump geometry is less optimal.
  • the classic pancake it is necessary to supply the current to the electrical windings in the disk via brushes which must be sealed against the flow medium.
  • DE 196 46 617 A shows an electric coolant pump, which has a fixed return plate in the region of the stator. On the opposite side of the rotor is a fixedly mounted in the rotor second return plate is provided.
  • Object of the present invention is to provide a pump in which these disadvantages are avoided and the smallest possible size has a simple structure and can be operated fail-safe.
  • Such a pump has only a single movable component, namely the impeller with the molded drive flange. Due to the large diameter of the drive flange, a large drive torque can be achieved, but the dimension in the axial direction of the pump is very small.
  • the electric motor of the pump according to the invention is not designed as a classic pancake in which flat-pressed magnet coils are arranged in the disk-shaped rotor, which are supplied with power via brushes, but it is designed as a permanent magnet DC motor or as an asynchronous three-phase motor. In both cases, the torque is caused by an external magnetic field generated in the stator.
  • the rotating field is in any case generated by an electronic circuit. This has the additional advantage that the performance of the pump can be easily adapted to the respective needs. In particular, a great smoothness can be achieved with the pump according to the invention.
  • a particularly preferred embodiment provides that the electric motor is designed as a wet rotor. This means that within the pump, the moving parts are not sealed, that is, that also the gap between the stator and the rotor of the pump is flooded with the medium to be pumped.
  • the impeller is designed as an axial-radial impeller, the opposite side has a flange on the inflow side, are formed on the blades, and the drive flange is arranged radially outside the flange. It is particularly preferred in this context, when the drive flange is arranged offset in the axial direction. In this way it is possible to form the discharge housing radially outside the impeller unhindered and at the same time to provide a part of the stator between the Ausströmgephaseuse and the drive flange.
  • the structure of the pump according to the invention is particularly simplified and made cost-effective when the impeller is made of plastic and the magnets are molded as inserts by injection molding.
  • Such a solution is also characterized by a robust mechanical construction.
  • the injection molding process must take into account that the magnets are heated only within the allowable limits to prevent demagnetization.
  • the magnets can also be magnetized in situ only after the production of the impeller, so that the injection molding process is not limited.
  • the housing of the pump according to the invention shown in FIG. 1, which is an electric coolant pump for an internal combustion engine, which promotes a conventional coolant, which is composed of water and glycol, consists of a hydraulic cover 1, the inflow 7 and half the Outflow channel 10 encloses, a hydraulic bottom 2, which surrounds the second half of the outflow channel 10 and carries a half of the stator, and a motor cover 3, which closes the housing on the hydraulic cover 1 opposite side.
  • the motor cover 3 carries in the axial region an axis 5 on which the impeller 6 is mounted.
  • the axis 5 is held by a collar 4 of the engine cover 3 and is injected as an insert in the manufacture of the engine cover 3.
  • the impeller 6 is formed as an axial-radial impeller, that is, that flows through the formed by the hydraulic cover 1 inflow housing 7, the medium to be conveyed in the axial direction.
  • the flow direction of the medium is deflected radially outwards, so that it is conveyed into the outflow housing 10. Via a helical out of the hydraulic cover 1 led out exhaust pipe 11, the medium is discharged.
  • a plain bearing bush 12 is formed, which can be encapsulated in the production.
  • the impeller 6 can be produced in two-component injection molding.
  • a screw 13 secures the impeller 6 on the axis fifth
  • the back of the flow channels 8 of the impeller 6 forms a disc 14, which bulges inwardly toward the hub 15 and outside substantially in an axis perpendicular to the axis 16 of the impeller 6 axis.
  • On the outer periphery of the disc 14 includes a tubular portion 17 which carries at its other end a drive flange 18 which extends outwardly.
  • magnets 19 are formed as inserts, which form the rotor of the electric motor.
  • the magnets 19 are rare earth magnets based on Nd-Fe-B and Pr-Fe-B, respectively, which have an extremely high field strength. It is also possible to use plastic-bonded magnets, so-called polymer magnets, which are produced by powder-pressing a mixture of magnetic particles with a binder based on epoxy resins, but also by injection-molding a compound. In this way, high magnetic properties can be achieved at low cost.
  • the windings 20 of the stator are attached, which forms a disc substantially parallel to the drive flange 18.
  • a return plate 21 is provided at the drive flange 18 opposite side of the winding 20 at the drive flange 18 opposite side of the winding 20, a return plate 21 is provided. By another return plate 22 which is fixed to the hydraulic base 2, the magnetic circuit is closed.
  • the backwash discs 21 and 22 may be conventionally constructed of sheets or made of plastic rings with molded-steel particles.
  • the winding 20 of the stator itself is ironless, which can be achieved particularly compact dimensions.
  • the motor of the pump according to the invention is powered by a plug 23 with power, not shown motor electronics for electronic commutation can be accommodated in the pump or outside. Alternatively, the engine electronics may be potted together with the winding 20, for example.
  • the cooling water pump according to the invention like a conventional coolant pump, can be mounted as a plug-in module on the internal combustion engine.
  • the location of the attachment is independent of belt drives or the like and that the control of the pump can be made much more sensitive to the respective cooling requirements of the internal combustion engine.
  • the pump is designed as a wet rotor, that is, that the entire interior is flooded with the coolant or the medium to be pumped, no stuffing boxes, mechanical seals, Simmerrings or the like are required, which reduces costs and increases reliability.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Claims (9)

  1. Pompe à liquide, notamment pompe à eau de refroidissement de moteurs à combustion interne, comportant
    - un moteur électrique à rotor en forme de disque, relié directement au rotor (6) de la pompe pour entraîner la pompe,
    - la périphérie extérieure du rotor de la pompe ayant une bride d'entraînement (18) venant radialement en saillie vers l'extérieur, et dans laquelle sont moulés des électroaimants (19) ou des enroulements (20) pour entraîner le rotor (6) en contact, et
    - et des disques de retour de flux (21, 22),
    caractérisée en ce que
    la bride d'entraînement (18) est entourée dans la direction axiale, des deux côtés, par des disques de retour de flux (21, 22), fixes.
  2. Pompe selon la revendication 1,
    caractérisée en ce que
    le moteur électrique est à commutation électronique.
  3. Pompe selon l'une des revendications 1 ou 2,
    caractérisée en ce que
    le moteur électrique est à rotor humide.
  4. Pompe selon l'une des revendications 1 à 3,
    caractérisée en ce que
    le rotor (6) est un rotor axial-radial dont le côté en regard du côté d'entrée comporte une surface en forme de bride munie d'aubes et la bride d'entraînement (18) est située radialement au-delà de la surface en forme de bride.
  5. Pompe selon la revendication 4,
    caractérisée en ce que
    la bride d'entraînement (18) est décalée dans la direction axiale.
  6. Pompe selon l'une des revendications 1 à 5,
    caractérisée en ce que
    le rotor (6) est en matière plastique et les aimants (19) sont des inserts surmoulés par injection.
  7. Pompe selon l'une des revendications 1 à 5,
    caractérisée en ce que
    le rotor (6) est en matière plastique et les aimants (19) sont des aimants fixés dans la matière plastique.
  8. Pompe selon l'une des revendications 1 à 7,
    caractérisée en ce que
    le rotor (6) est relié à une autre bride d'entraînement (28).
  9. Pompe selon la revendication 8,
    caractérisée en ce que
    les deux brides d'entraînement (18, 28) sont symétriques de part et d'autre du stator (20).
EP02450114A 2001-05-11 2002-05-07 Pompe centrifugale Expired - Fee Related EP1256722B1 (fr)

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 EP1256722A2 (fr) 2002-11-13
EP1256722A3 EP1256722A3 (fr) 2004-01-02
EP1256722B1 true EP1256722B1 (fr) 2007-02-21

Family

ID=3680508

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02450114A Expired - Fee Related EP1256722B1 (fr) 2001-05-11 2002-05-07 Pompe centrifugale

Country Status (4)

Country Link
US (1) US6835051B2 (fr)
EP (1) EP1256722B1 (fr)
AT (1) AT414064B (fr)
DE (1) DE50209511D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130343935A1 (en) * 2011-03-12 2013-12-26 Finn Mathiesen Høj Heat circulation pump

Families Citing this family (20)

* Cited by examiner, † Cited by third party
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
CN101213373B (zh) * 2005-07-04 2012-05-09 贝洱两合公司 叶轮
EP1972791A4 (fr) * 2005-12-22 2016-04-13 Yamamoto Denki Kk Pompe à moteur sans balais plat et unité de pompe à eau électrique pour véhicule employant une pompe à moteur sans balais plat
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
DE102007048019A1 (de) 2007-10-06 2009-04-09 Bayerische Motoren Werke Aktiengesellschaft Pumpe
DE102008064162B4 (de) 2008-12-19 2013-06-06 Bühler Motor GmbH Kreiselpumpe mit einer feststehenden Achse
DE102008064099B4 (de) * 2008-12-19 2016-05-04 Bühler Motor GmbH Kreiselpumpe mit einer feststehenden Achse
US8979504B2 (en) * 2009-08-19 2015-03-17 Moog Inc. Magnetic drive pump assembly with integrated motor
MX341039B (es) * 2010-04-19 2016-08-04 Kolektor Magnet Tech Gmbh Bomba de refrigerante para automovil electrica.
DE102012200816B4 (de) * 2012-01-20 2015-04-02 Yasa Motors Poland Sp. z.o.o. Nassläuferpumpe mit Permanentmagnet
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

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2782721A (en) * 1949-08-19 1957-02-26 Howard T White Motor driven pumps
DE1613626A1 (de) * 1967-03-09 1970-05-14 Eberspaecher J Elektromotor
US3932069A (en) * 1974-12-19 1976-01-13 Ford Motor Company Variable reluctance motor pump
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
DE19617495A1 (de) * 1996-05-02 1997-11-06 Mannesmann Vdo Ag Pumpe, insbesondere Kraftstoffpumpe
DE19646617A1 (de) * 1996-11-12 1998-05-14 Pierburg Ag Kühlmittelpumpe mit elektrisch kommutiertem Elektromotor
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
US6034465A (en) * 1997-08-06 2000-03-07 Shurfle Pump Manufacturing Co. Pump driven by brushless motor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130343935A1 (en) * 2011-03-12 2013-12-26 Finn Mathiesen Høj Heat circulation pump
US9546663B2 (en) * 2011-03-12 2017-01-17 Grundfos Management A/S Heat circulation pump

Also Published As

Publication number Publication date
EP1256722A3 (fr) 2004-01-02
ATA7592001A (de) 2005-11-15
EP1256722A2 (fr) 2002-11-13
US6835051B2 (en) 2004-12-28
US20020166520A1 (en) 2002-11-14
DE50209511D1 (de) 2007-04-05
AT414064B (de) 2006-08-15

Similar Documents

Publication Publication Date Title
EP1256722B1 (fr) Pompe centrifugale
EP1149245B1 (fr) Pompe a liquide presentant un boitier moteur et procede de realisation d'un boitier moteur
DE4411960C2 (de) Von einem elektronisch kommutierten Elektromotor angetriebene Flüssigkeitspumpe
EP1865202B1 (fr) Pompe à eau pour étangs, aquariums, fontaines et analogues
EP0520333A1 (fr) Unité de pompage
DE102007055907A1 (de) Kühlmittelpumpe
DE19845864A1 (de) Spaltrohrmotor
EP2129920A1 (fr) Dispositif de transport de fluides
WO2012113416A2 (fr) Moteur synchrone à excitation interne équipé d'un rotor à aimants permanents présentant une protection anticorrosion multiple
DE102011001041A1 (de) Magnetisch angetriebene Pumpenanordnung mit einer Mikropumpe mit Zwangsspuelung und Arbeitsverfahren
EP1778981A1 (fr) Dispositif pour transporter des fluides
WO2019166333A1 (fr) Moteur électrique
DE102015207748A1 (de) Fluidpumpe
EP1812714B1 (fr) Ensemble comprenant un ventilateur et une pompe
WO2015067514A1 (fr) Électropompe à eau
EP1794459A1 (fr) Dispositif de circulation de fluides
DE102016102681A1 (de) Elektrische Wasserpumpe
EP0713282B1 (fr) Moteur à manchon d'entrefer
EP1081386A2 (fr) Moteur électrique a flux axial
DE102007021917A1 (de) Elektrische Maschine mit verbesserter Wärmeabfuhr
EP1706932A1 (fr) Groupe pompe centrifuge
EP1797330A1 (fr) Dispositif de transport de fluides
EP2273655B1 (fr) Machine électrique
DE19921362A1 (de) Auf den Rotor aufgestecktes Laufrad
DE202005014301U1 (de) Anordnung zur Förderung von Fluiden

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

17P Request for examination filed

Effective date: 20031229

AKX Designation fees paid

Designated state(s): DE FR GB IT

17Q First examination report despatched

Effective date: 20041119

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 50209511

Country of ref document: DE

Date of ref document: 20070405

Kind code of ref document: P

ET Fr: translation filed
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 20070221

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070221

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20070530

Year of fee payment: 6

26N No opposition filed

Effective date: 20071122

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20070529

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080507

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20100503

Year of fee payment: 9

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20111202

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080602

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50209511

Country of ref document: DE

Effective date: 20111201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20111201