EP1210520B1 - Pompe a entrainement magnetique - Google Patents

Pompe a entrainement magnetique Download PDF

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Publication number
EP1210520B1
EP1210520B1 EP00960799A EP00960799A EP1210520B1 EP 1210520 B1 EP1210520 B1 EP 1210520B1 EP 00960799 A EP00960799 A EP 00960799A EP 00960799 A EP00960799 A EP 00960799A EP 1210520 B1 EP1210520 B1 EP 1210520B1
Authority
EP
European Patent Office
Prior art keywords
partition
rotor
magnets
pump according
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.)
Expired - Lifetime
Application number
EP00960799A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1210520A1 (fr
Inventor
Claude Terracol
Guy Jean Villette
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.)
Siebec SA
Original Assignee
Siebec SA
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 Siebec SA filed Critical Siebec SA
Publication of EP1210520A1 publication Critical patent/EP1210520A1/fr
Application granted granted Critical
Publication of EP1210520B1 publication Critical patent/EP1210520B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/04—Shafts or bearings, or assemblies thereof
    • F04D29/046—Bearings
    • F04D29/047—Bearings hydrostatic; hydrodynamic
    • 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
    • F04D13/021—Units comprising pumps and their driving means containing a coupling
    • F04D13/024—Units comprising pumps and their driving means containing a coupling a magnetic coupling
    • F04D13/025—Details of the can separating the pump and drive area
    • 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
    • F04D29/043—Shafts

Definitions

  • the sealing wall is particularly important when the pumped liquid corrosive character, which is frequently the case in chemistry or electroplating.
  • the motor 1 is connected to the centrifugal wheel 2 by an axis 3 and a rigid coupling device 4.
  • the wheel 2 rotates in the pump body 5 which communicates with the suction pipe 6 and the discharge pipe. pump body at the passage of the axis 3 is ensured by the friction seal 8.
  • a second potential defect concerns the sealing itself which can not be guaranteed in a perfect way, because of the small surface defects that can be meet on the rubbing support faces, and the inevitable creation of a film liquid between these surfaces.
  • FIG. 2 shows the motor 11, the wheel 12, the pump body 15, the suction pipes 16 and discharge 17.
  • the sealing is here ensured by the continuous partition 18 assembled rigidly and hermetically between the body of pump 15 and the spacer 19 providing the connection with the motor flange 11.
  • the drive rotor 20 On the axis of the motor 11 is rigidly mounted the drive rotor 20 in which is inserted, for example by overmoulding, a series of magnets 21.
  • the driven rotor 22 integral with the wheel 12 is equipped with a series of magnets 23.
  • the magnets 21, 23 are organized so that a north pole side drive is in face of a south pole driven side, and vice versa. We thus obtain a coupling magnetic field without mechanical contact, which must be sufficient to withstand without stalling the maximum torque absorbed by the wheel.
  • Document FR-A-2311201 describes a pump with magnetic drive, in which the turbine is equipped with a magnetic core and is driven by the magnetic crown through a watertight bulkhead.
  • the rotary turbine is supported by a fixed shaft, which is guided by a pair of bearings on the magnetic ring in connection with the motor shaft.
  • the presence of bearings in addition to the output bearing of the motor shaft gives the whole a door to fake important, and additional embedding.
  • the axial size of the pump is important, and the positioning of the turbine shaft does not allow to achieve perfect alignment.
  • the axis of the motor is advantageously prolonged by a length sufficient for him allow to get into the heart of the driven rotor. It follows that the axis of the engine encompasses the axis of the wheel which, fixed, becomes turning. This is obviously not this rotation which is sought after, but the fact of having for the first rotor driven, a rigid support and perfectly aligned with the motor axis.
  • the first driven rotor has a second ring which pivots on a first ring integral with the fixed partition.
  • the bearing integrated in the partition comprises at least one self-lubricating ring constituting a thermal bridge for the evacuation of the calories generated by the trunnion of the first rotor driven to the radiator formed by the motor shaft.
  • the sealing partition must not be interrupted, so it is necessary to complicate a little shape to make it bypass the extended tip, which belongs to the area external to the pumping circuit, whereas the axis 24 according to FIG. 2 of the prior art belonged to the inner zone.
  • the partition will have to present a second cylindrical part coming to engage on the end of the axis motor, with the interposition of a friction sleeve, made for example in self-lubricating material.
  • this axis now ensures the positioning of the rotor driven with precision and the rigidity wanted, this function does not have to be ensured by the partition sealing, which can be significantly lightened.
  • this partition can be made in one piece, in a material chemically compatible with the pumped liquid.
  • the part must be able to withstand the pressure of the liquid around the driven rotor, a sizeable pressure since it can be close to the discharge pressure of the pump. In cases where this pressure is high, and where there is no chemically compatible material having the sufficient mechanical strength, one can be reduced to a solution of composite partition with a mechanically strong outer shell, and a chemically compatible inner shell.
  • the configuration described above has an obvious advantage, as far as it is appear a thermal bridge of strong section and thin thickness between the bearing driven rotor and the motor shaft.
  • this advantage is mitigated by the it is necessary to evacuate in addition the calories produced by the rotation of the mouthpiece additional engine shaft in its own landing, but we're out there of reaching the pumped liquid, which makes it possible to use components classic mechanicals, whose performance is excellent.
  • the sealing partition is shaped for chemical compatibility, while accuracy and mechanical strength are provided by an additional piece partially matching the shape of the partition, and made of a material having good mechanical strength.
  • the room may be made of metal alloy, in particular steel stainless steel, and includes a ferrule inserted into the gap between the two series of magnets. The thickness of the ferrule is less than that of the envelope of the partition.
  • a tip 42 extends the motor shaft 41, which it can be an integral part, or on which it can be assembled with rigidity and precision.
  • the tip 42 is arranged to receive the fixing of the second drive rotor 30, this attachment being provided by any suitable mechanical means.
  • the sealing partition consists of a casing 48 made of material chemically compatible with the pumped liquid, and a cylindrical shell 52 made of mechanically resistant material, especially stainless steel. This ferrule makes it possible to bring the resistance to the internal pressure, insofar as the constituent material of the envelope 48 may be insufficiently resistant.
  • the envelope 48 is extended inwards by a sheath portion, in which axially introduces the tip 42.
  • the ring 35 and the sleeve 53 may advantageously be overmoulded in the envelope of the partition 48 during the molding thereof.
  • the sealing partition is therefore completely discharged from the centering function, and no longer has to be very rigid. On the contrary, it is desirable that it presents a minimum flexibility, so as not to upset the centering imposed by the tip 42.
  • the device of FIG. evacuation to the outside of the calories generated by the rotation of the rotor wheel 32, the motor shaft 41 acting as a radiator via the nozzle 42.
  • the calories pass successively through pieces 35, 48, 53, 54 and 54 'but all these transfers involve small thicknesses and large sections, which leads to a sufficiently efficient thermal bridge.

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)
  • External Artificial Organs (AREA)
  • Sealing Devices (AREA)
  • Electromagnetic Pumps, Or The Like (AREA)
EP00960799A 1999-09-06 2000-09-06 Pompe a entrainement magnetique Expired - Lifetime EP1210520B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9911242 1999-09-06
FR9911242A FR2798169B1 (fr) 1999-09-06 1999-09-06 Pompe a entrainement magnetique
PCT/FR2000/002446 WO2001018401A1 (fr) 1999-09-06 2000-09-06 Pompe a entrainement magnetique

Publications (2)

Publication Number Publication Date
EP1210520A1 EP1210520A1 (fr) 2002-06-05
EP1210520B1 true EP1210520B1 (fr) 2003-11-19

Family

ID=9549645

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00960799A Expired - Lifetime EP1210520B1 (fr) 1999-09-06 2000-09-06 Pompe a entrainement magnetique

Country Status (8)

Country Link
US (1) US6672818B1 (enExample)
EP (1) EP1210520B1 (enExample)
JP (1) JP2003508689A (enExample)
AT (1) ATE254723T1 (enExample)
DE (1) DE60006689T2 (enExample)
ES (1) ES2211599T3 (enExample)
FR (1) FR2798169B1 (enExample)
WO (1) WO2001018401A1 (enExample)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2003247622A1 (en) * 2002-06-27 2004-01-19 Nitromed, Inc. Cyclooxygenase-2 selective inhibitors, compositions and methods of use
US7131825B2 (en) * 2004-01-30 2006-11-07 Isothermal Systems Research, Inc. Spindle-motor driven pump system
DE502005005690D1 (de) * 2004-03-16 2008-11-27 Emb Papst St Georgen Gmbh & Co Anordnung mit einem elektronisch kommutierten aussenläufermotor
GB2418074A (en) * 2004-09-14 2006-03-15 Dana Automotive Ltd A method of making a permanent magnet electric motor rotor
JP4297859B2 (ja) * 2004-09-28 2009-07-15 三洋電機株式会社 電動車輪用ハブユニット及び該ハブユニットを具えた乗物
DE502005006436D1 (de) * 2004-10-06 2009-02-26 Ebm Papst St Georgen Gmbh & Co Anordnung zur förderung von fluiden
CN1828027B (zh) * 2005-02-28 2011-10-19 台达电子工业股份有限公司 液冷式散热模块
CN1983778B (zh) * 2005-12-08 2011-01-26 刘素荣 液态金属磁力驱动无叶轮离心泵
ITBS20060079A1 (it) * 2006-03-30 2007-09-30 Metelli S P A Pompa a trascinamento magnetico perfezionata
US8575802B2 (en) * 2010-02-03 2013-11-05 Src Electrical Llc Locomotive starter motor
DE102012024130B4 (de) * 2012-12-11 2014-09-11 Klaus Union Gmbh & Co. Kg Spalttopf für magnetgekuppelte Pumpen sowie Herstellungsverfahren
FR3011895B1 (fr) * 2013-10-14 2016-03-04 Pompes Salmson Sa Ensemble coussinet, support de coussinet pour une pompe de circulation
EP2899855B1 (de) * 2014-01-23 2022-08-24 Pierburg Pump Technology GmbH Elektrische Kraftfahrzeug-Kühlmittelpumpe
US9771938B2 (en) 2014-03-11 2017-09-26 Peopleflo Manufacturing, Inc. Rotary device having a radial magnetic coupling
US9920764B2 (en) 2015-09-30 2018-03-20 Peopleflo Manufacturing, Inc. Pump devices
WO2018008896A1 (ko) * 2016-07-04 2018-01-11 주식회사 아모텍 워터 펌프
KR101968162B1 (ko) * 2016-07-04 2019-04-11 주식회사 아모텍 워터 펌프
US11193493B2 (en) 2016-07-04 2021-12-07 Amotech Co., Ltd. Water pump
FR3074622B1 (fr) * 2017-12-04 2021-07-30 Ifp Energies Now Dispositif de compression d'un fluide entraine par une machine electrique avec un arbre de rotor ayant une frette amagnetique

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3172364A (en) * 1962-10-01 1965-03-09 P G Products Mfg Co Inc Pump
FR2311201A1 (fr) * 1975-05-12 1976-12-10 Siebec Filtres Perfectionnement apporte aux pompes a entrainement magnetique
US4207485A (en) * 1978-04-24 1980-06-10 The Garrett Corporation Magnetic coupling
US4645432A (en) * 1986-02-14 1987-02-24 General Motors Corporation Magnetic drive vehicle coolant pump
JPH01125591A (ja) * 1987-11-06 1989-05-18 Sanyo Electric Co Ltd マグネットポンプ
JPH0276191U (enExample) * 1988-11-30 1990-06-11
DE3927391A1 (de) * 1989-08-19 1991-02-21 Bosch Gmbh Robert Vorrichtung zum beheizen des fahrgastraumes eines kraftfahrzeuges
JPH05252800A (ja) * 1992-02-28 1993-09-28 Fuji Oozx Kk 渦電流継手を用いた動力伝達装置の制御方法及び装置
FR2715442B1 (fr) * 1994-01-26 1996-03-01 Lorraine Carbone Pompe centrifuge à entraînement magnétique.
US5833437A (en) * 1996-07-02 1998-11-10 Shurflo Pump Manufacturing Co. Bilge pump
GB9717866D0 (en) * 1997-08-23 1997-10-29 Concentric Pumps Ltd Improvements to rotary pumps

Also Published As

Publication number Publication date
FR2798169A1 (fr) 2001-03-09
EP1210520A1 (fr) 2002-06-05
DE60006689D1 (de) 2003-12-24
WO2001018401A1 (fr) 2001-03-15
FR2798169B1 (fr) 2001-11-16
ES2211599T3 (es) 2004-07-16
JP2003508689A (ja) 2003-03-04
DE60006689T2 (de) 2004-10-07
ATE254723T1 (de) 2003-12-15
US6672818B1 (en) 2004-01-06

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