EP1256722A2 - Pompe centrifugale - Google Patents

Pompe centrifugale Download PDF

Info

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
Application number
EP02450114A
Other languages
German (de)
English (en)
Other versions
EP1256722B1 (fr
EP1256722A3 (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 - Lifetime 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, 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)
EP02450114A 2001-05-11 2002-05-07 Pompe centrifugale Expired - Lifetime 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 true EP1256722A2 (fr) 2002-11-13
EP1256722A3 EP1256722A3 (fr) 2004-01-02
EP1256722B1 EP1256722B1 (fr) 2007-02-21

Family

ID=3680508

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02450114A Expired - Lifetime 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 (4)

* Cited by examiner, † Cited by third party
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 (fr) * 2005-07-04 2012-09-12 Behr GmbH & Co. KG Turbine
WO2013107804A3 (fr) * 2012-01-20 2013-10-10 Yasa Motors Poland Sp. Z O.O. Pompe à rotor noyé comportant un aimant permanent

Families Citing this family (22)

* 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
WO2007072561A1 (fr) * 2005-12-22 2007-06-28 Yamamoto Electric Corporation 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
DE102008064099B4 (de) * 2008-12-19 2016-05-04 Bühler Motor GmbH Kreiselpumpe mit einer feststehenden Achse
WO2011022557A2 (fr) * 2009-08-19 2011-02-24 Aspen Motion Technologies, Inc. D/B/A Ensemble pompe à entraînement magnétique avec moteur intégré
JP5766277B2 (ja) * 2010-04-19 2015-08-19 ピールブルグ 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 自動車に用いられる電動式の冷媒ポンプ
EP2500575B2 (fr) * 2011-03-12 2022-05-25 Grundfos Management a/s Pompe de recirculation de chauffage
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
US12398659B2 (en) 2024-01-03 2025-08-26 Flowserve Pte. Ltd. Integral motor pump or turbine with sensorless monitoring of axial bearing wear
US12486849B2 (en) 2024-01-08 2025-12-02 Flowserve Pte. Ltd. Mechanism for reducing eddy current losses in sealless pumps and turbines having directly driven impellers
US12577954B2 (en) 2024-01-09 2026-03-17 Flowserve Pte. Ltd. Axial direct drive sealless pump or turbine with deformation-resistant cover plate
US12480519B2 (en) 2024-01-09 2025-11-25 Flowserve Pte. Ltd. Mechanism for maintaining integrity of permanent magnets in directly driven sealless pumps and turbines
US12313074B1 (en) 2024-02-09 2025-05-27 Flowserve Pte. Ltd. Efficient system for pumping low-density liquids

Citations (3)

* Cited by examiner, † Cited by third party
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)

* 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
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1902220B1 (fr) * 2005-07-04 2012-09-12 Behr GmbH & Co. KG Turbine
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 (fr) * 2012-01-20 2013-10-10 Yasa Motors Poland Sp. Z O.O. Pompe à rotor noyé comportant un aimant permanent

Also Published As

Publication number Publication date
ATA7592001A (de) 2005-11-15
EP1256722B1 (fr) 2007-02-21
US6835051B2 (en) 2004-12-28
AT414064B (de) 2006-08-15
US20020166520A1 (en) 2002-11-14
DE50209511D1 (de) 2007-04-05
EP1256722A3 (fr) 2004-01-02

Similar Documents

Publication Publication Date Title
EP1256722B1 (fr) Pompe centrifugale
DE19956380C1 (de) Flüssigkeitspumpe mit einem Motorgehäuse und Verfahren zur Herstellung eines Motorgehäuses
DE102010044453B4 (de) Bürstenloser Motor
EP3899284B1 (fr) Compresseur à canal latéral pour système de pile à combustible, permettant le transport et/ou la compression d'un fluide gazeux
EP2567447B1 (fr) Pompe dotée d'un moteur à courant continu intégré à commutation électronique
EP2547910B1 (fr) Ventilateur à moteur à rotor extérieur avec carter de paliers et logement pour l'électronique de contrôle intégrés
EP1865202B1 (fr) Pompe à eau pour étangs, aquariums, fontaines et analogues
DE4411960C2 (de) Von einem elektronisch kommutierten Elektromotor angetriebene Flüssigkeitspumpe
WO2005095802A1 (fr) Ensemble comprenant un moteur a induit exterieur a commutation electronique
EP3759800A1 (fr) Moteur électrique
EP2056432A1 (fr) Agencement d'entraînement magnétique
DE102007055907A1 (de) Kühlmittelpumpe
DE102020200234A1 (de) Seitenkanalverdichter für ein Brennstoffzellensystem zur Förderung und/oder Verdichtung von einem gasförmigen Medium, insbesondere Wasserstoff
WO2015067514A1 (fr) Électropompe à eau
EP1081386B1 (fr) Moteur électrique a flux axial
DE102007021917A1 (de) Elektrische Maschine mit verbesserter Wärmeabfuhr
EP1812714B1 (fr) Ensemble comprenant un ventilateur et une pompe
EP2201252A1 (fr) Ventilateur à tambour à entraînement direct
WO2006027043A1 (fr) Dispositif de circulation de fluides
DE102004003400B4 (de) Kreiselpumpenaggregat
WO2018162620A1 (fr) Moteur électrique
EP3084219B1 (fr) Dispositif de pompage
EP3853482A1 (fr) Ensemble à rotor
WO2015110256A1 (fr) Pompe à eau électromotrice
DE19617495A1 (de) Pumpe, insbesondere Kraftstoffpumpe

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