WO2006037396A1 - Dispositif de transport de fluides - Google Patents

Dispositif de transport de fluides Download PDF

Info

Publication number
WO2006037396A1
WO2006037396A1 PCT/EP2005/008668 EP2005008668W WO2006037396A1 WO 2006037396 A1 WO2006037396 A1 WO 2006037396A1 EP 2005008668 W EP2005008668 W EP 2005008668W WO 2006037396 A1 WO2006037396 A1 WO 2006037396A1
Authority
WO
WIPO (PCT)
Prior art keywords
arrangement according
permanent magnet
rotor
arrangement
magnetic
Prior art date
Application number
PCT/EP2005/008668
Other languages
German (de)
English (en)
Inventor
Alexander Jordan
Michael Burgert
Original Assignee
Ebm-Papst St. Georgen Gmbh & Co. Kg
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 Ebm-Papst St. Georgen Gmbh & Co. Kg filed Critical Ebm-Papst St. Georgen Gmbh & Co. Kg
Priority to US11/576,688 priority Critical patent/US20090022607A1/en
Priority to DE502005006436T priority patent/DE502005006436D1/de
Priority to EP05786321A priority patent/EP1797330B1/fr
Publication of WO2006037396A1 publication Critical patent/WO2006037396A1/fr

Links

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
    • F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
    • F04D29/056—Bearings
    • F04D29/059—Roller 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
    • F04D13/021—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
    • F04D13/026—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
    • F04D13/021—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
    • F04D13/027—Details of the magnetic circuit
    • 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
    • F04D13/12—Combinations of two or more pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
    • F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
    • F04D25/062—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
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
    • F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
    • F04D25/064—Details of the rotor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
    • F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
    • F04D25/0646—Details of the stator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows

Definitions

  • the invention relates to an arrangement for conveying fluids.
  • fluids liquid and / or gaseous media can be conveyed.
  • the dissipation of heat from components with a high heat flux density occurs by means of so-called heat receivers or CoId plates.
  • the heat is transferred to a cooling liquid, and this is usually placed in a circuit in forced circulation.
  • the cooling liquid flows through not only the heat absorber, but also a liquid pump, which causes the forced circulation and an adequate pressure build-up and an adequate volume flow through the heat exchanger and an associated heat exchanger causes, so that the heat transfer coefficients associated with these heat transfer large and the heat transfer necessary temperature gradient become small.
  • a fan In the heat exchanger usually a fan is arranged, which causes a forced convection of the cooling air and good transfer coefficients on the air side of the heat exchanger.
  • this object is achieved by the subject matter of claim 1.
  • FIG. 1 shows a longitudinal section through a preferred embodiment of the invention, as seen along the line l-l of Fig. 5,
  • FIG. 1 is an exploded view of the arrangement of FIG. 1,
  • FIG. 6 shows a three-dimensional representation of an arrangement with flux guide plates, according to a variant of the invention
  • FIG. 7 is an enlarged fragmentary view of FIG. 6 showing protrusions that are deformed during ultrasonic welding to produce a local weld;
  • FIG. 8 is a bottom plan view of the arrangement of FIG. 6, viewed in the direction of the arrow VIII of FIG. 6, 9 is a top plan view of the arrangement of FIG. 6, seen in the direction of the arrow IX of FIG. 6,
  • FIG. 10 is a schematic representation of the attachment of the arrangement of FIG. 6 by means of pressing and ultrasonic welding
  • FIG. 12 shows the arrangement according to FIG. 10 after its assembly
  • FIG. 13 shows a three-dimensional representation of an arrangement with flux guide plates, according to a further variant of the invention.
  • FIG. 14 is an enlarged sectional view of FIG. 13,
  • FIG. 16 is a detail of FIG. 15,
  • Fig. 17 is a section through a Flußleitblech of FIG. 13, and
  • FIGS. 18 and 19 are two schematic diagrams for explaining the mounting of the rotor and its bearings in the arrangement of FIGS. 1 to 3.
  • Fig. 1 shows an enlarged view of an arrangement with an electronically commutated external rotor motor 20.
  • This has an inner stator 22 of conventional construction, as shown by way of example in Fig. 2 in section, for example, a stator with salient poles or a claw-pole, and this is separated by a substantially cylindrical air gap 24 from a permanent magnetic outer rotor 26, whose structure also from Fig. 2 particularly is clearly visible.
  • the outer rotor 26 rotates about the inner stator 22, which is why such motors 20 are referred to as external rotor motors.
  • the inner stator 22 is mounted on a bearing tube 30 made of a suitable plastic, usually by pressing.
  • the shape of the bearing tube 30 is particularly clear from Figs. 2 and 3.
  • a circuit board 32 To the right of the inner stator 22 is located in Fig. 1, a circuit board 32.
  • the magnet ring 36 is radially magnetized and preferably has four rotor poles. Its magnetization, that is, the distribution of its magnetic flux density can be e.g. be rectangular or trapezoidal.
  • the sensor 34 is controlled by a stray field of the magnetic ring 36, which allows a non-contact detection of the position of the rotor 26.
  • the outer rotor 26 has a construction with a so-called rotor bell 40, which is designed here as a deep-drawn, cup-shaped sheet metal part made of soft ferromagnetic material.
  • the magnetic ring 36 is fixed in this sheet metal part 40, so that it forms a magnetic yoke for the rotor magnet 36.
  • the sheet metal part 40 is fixed to a hub 44 in which a shaft 46 is fixed in the manner shown.
  • the shaft 46 is mounted in two ball bearings 48, 50, the outer rings are held by a spacer 52 at a distance from each other, see.
  • These ball bearings 48, 50 are, together with the shaft 46, pressed in the assembly in Fig. 1 from the left into the bearing tube 30 and held there by a locking member 54, see.
  • a locking member 54 see.
  • For pressing the locking member 54 is an axial projection 56 of the flange 44.
  • a compression spring 58 Between the latter and the inner ring of the roller bearing 48 is a compression spring 58, which, based on Fig.
  • the outside of the sheet metal part 40 is surrounded by a plastic part 63, in which fan blades 64 are formed in the manner shown by plastic injection molding. These rotate during operation in a recess 66 of a fan housing 68, see. Fig. 3.
  • the fan housing 68 preferably has the usual square basic shape of a device fan and has in its corners each have a mounting hole 70.
  • the plastic part 63 has in Fig. 1 right a continuation part 65 in which a permanent magnet 67 is attached, the part of a magnetic coupling is.
  • the bearing tube 30 is in Fig. 1 to the right in a flange-like portion 80 which is perpendicular to the axis of rotation 81 of the rotor 26 and merges at its periphery in a cylindrical portion 82 which here has the function of a so-called split tube and therefore in the following Canned 82 is called.
  • This passes over a shoulder 84 into a cylindrical portion 86, the free end of which, as shown, serves to secure a lid 88, e.g. by laser welding.
  • a lid 88 On the lid 88, an inlet nozzle 96 is provided for cooling liquid.
  • a delivery wheel 90 is rotatably arranged.
  • the bearing tube 83 is as shown preferably integrally with the parts 82, 84, 86 made of a magnetically transparent plastic.
  • the feed wheel 90 is preferably formed integrally with a permanent magnetic rotor 92 which forms a magnetic coupling 94 with the permanent magnet 67, ie when the permanent magnet 67 rotates, the permanent magnet 92 also rotates, thereby driving the delivery wheel 90, whereby this liquid sucks through the inlet 96 and pumped through an outlet 98 to the outside, as indicated by arrows.
  • a permanent magnetic rotor 92 which forms a magnetic coupling 94 with the permanent magnet 67, ie when the permanent magnet 67 rotates, the permanent magnet 92 also rotates, thereby driving the delivery wheel 90, whereby this liquid sucks through the inlet 96 and pumped through an outlet 98 to the outside, as indicated by arrows.
  • any other turbomachine may be provided instead of a spiral pump, for example a compressor for a refrigerant.
  • Fig. 2 shows approximately half of the flux guide 150 in a perspective view
  • Fig. 4 explains its operation.
  • the flux guide 150 have in Figs. 1 and 2 in the form of pentagonal plates made of dynamo plate, so softferromagnetic material. They are embedded in the embodiment of FIGS. 1 to 5 with their radially inner ends in the can 82, cf. Fig. 5, and broaden, starting from this, in the direction radially outward. They are arranged in a star shape, e.g. in the form shown in FIG. 5. Their outer ends 1 52 are separated by a magnetic air gap 154 from the permanent magnet 67. (“Magnetic air gap” is a term used in electrical engineering.) Also, a magnet that is magnetically transparent can form such an "air gap,” that is, magnetic like air.)
  • Fig. 4 shows an instantaneous rotational position of the magnet 67, which is shown in four poles, as well as the magnet 92. The latter is shown in simplified form.
  • the flux guide bodies 150 face south poles S, to the right of the boundary 156, on the other hand, they face north poles N.
  • the Flussleit stresses 1 50 extend here in each case in radial planes and at a distance from each other, whereby they are magnetically isolated from each other. They are preferably distributed uniformly around the circumference in order to avoid the development of reluctance moments and magnetic preferred positions.
  • south poles S which form the north pole N of the permanent magnet 92, form to the left of the pole boundary.
  • the flux guide bodies 150 face north poles N, and accordingly north pole N, which attract a south pole of the permanent magnet 92, are located at the radially inner end of the flux guide body 150 there.
  • FIG. 4 When the outer magnet 67 rotates in a clockwise direction, as shown in FIG. 5, the poles also move along the inner ends of the flux guide bodies 150 and thus cause rotation of the inner permanent magnet 92 at the same speed.
  • the arrangement of FIG. 4 thus operates on the principle of a synchronous motor. (Alternatively, in special cases, operation with slippage is not excluded, which presupposes the use of special materials in the magnetic coupling 94, as known to the person skilled in the art.)
  • the permanent magnet 92 of the fluid pump is rotatably supported by means of a sliding bearing 100 on a stationary shaft 106, which is fixed in a liquid-tight manner in a protruding projection 107 of the portion 80 in the manner shown.
  • a snap ring (not shown) may be provided at the right end of the shaft 106.
  • the magnet 92 is attracted and held in the illustrated axial position.
  • a free space 109 between the right end of the shaft 46 and the bottom of the recess 60.
  • the design with the projection 107 allows despite this free space 109 an axially compact construction.
  • the cylindrical portion 86 is connected via radially extending webs 1 14 with the fan housing 68, so that this with the split tube 82, the portion 80 and the bearing tube 30 forms a one-piece plastic part, which simplifies the assembly of the assembly, the number of parts keeps small , And the aggregates used safely separated from each other, so that liquid from the turbomachine 90 can not get to the electric motor 20 and damage it.
  • the stationary shaft 106 also forms part of this injection-molded part, because it is anchored in this in the manufacture, and therefore also contributes to the compact design.
  • the external rotor motor 20 drives the outer rotor 26, so that the fan blades 64 rotate in the housing 68 and thereby generate an air flow therein.
  • the fan can also be designed as a diagonal or radial fan. Shown is an axial fan.
  • the magnet ring 67 drives the rotor magnet 92 via the flux guide bodies 150 and through the gap tube 82 and thus rotates the impeller 90, so that this liquid sucks through the inlet 96 and pumps out through the outlet 98.
  • a pump may e.g. used to aspirate and pump water in a fountain, or to pump blood in a cardiopulmonary bypass, or to transport cooling fluid in a closed cooling circuit, the impeller 90 then having the function of a circulation pump.
  • the lid 88 is liquid-tightly connected to the cylindrical part 86, for example by laser welding, no liquid can escape from the housing 88 to the outside. This contributes to the fact that the section 80 and its projection 107 are free of openings of any kind. This is possible because the rotor 26, for example in the manner described below in FIGS. 18 and 19, can be mounted very simply and it is not necessary to have access to the right-hand end of the shaft 46 during assembly , Likewise, that can Impeller 90 of the centrifugal pump with its sliding bearing 100 in Fig. 1 are mounted from the right on the stationary shaft 106 before the lid 88 is attached.
  • Flussleit Economics 150 ensures that the rotor 26 can be easily pushed over this Flussleit Sciences 150 including its axial extension 65 and the permanent magnet 67 during assembly without this complicated assembly work is necessary. Before assembly of the rotor 26, the entire remaining part of the arrangement can be completely assembled, because it is possible because of the flux guide 150 to make the outer diameter in the region of these bodies 150 larger than the outer diameter of the inner stator 22 and the circuit board 32nd
  • the rolling bearing 48 follows with its outer ring 48e and its inner ring 48i. The latter is displaceable on the shaft 46 in the axial direction. The lower end of the spring 58 abuts against the upper end of the inner ring 48i.
  • the roller bearing 48 is followed by the spacer 52, which is displaceably guided on the shaft 46 by means of a radially inwardly projecting projection 53 and whose upper end abuts, as illustrated, against the lower end of the outer ring 48e.
  • the lower roller bearing 50 follows with its outer ring 50 e, which rests with its upper end against the spacer 52 and with its inner ring 50 i, which is axially displaceable on the shaft 46 and with its lower end against the snap ring 59th is applied when the motor 20 is fully assembled.
  • Fig. 19 shows a snapshot in the process of "marriage", in which the shaft 46 of the rotor 26 is inserted with the rolling bearings 48, 50 thereon in the inner recess 77 of the bearing tube 30.
  • a force K is applied to the rotor 26 in the axial direction, and since the outer rings 48e, 50e of the rolling bearings 48, 50 are press-fitted into the bearing tube 30, the spring 58 is compressed by the force K, so that the shaft 46 in the ball bearings 48, 50 moves and the projection 56 via the lock washer 54, the outer ring 48e of the ball bearing 48 and the spacer member 52 and the outer ring 5Oe of the ball bearing 50 is applied and so presses the two ball bearings 48, 50 in the bearing tube 30.
  • the securing member 54 shifts in the bearing tube 30 and thereby digs into its plastic material so that it latches the entire bearing arrangement in the bearing tube 30.
  • Flussleitmaschinen 150 'on a plastic ring 160 has a cylindrical recess 162, with which it is pushed onto the gap tube 82 as shown in FIG. On its outside, it has projections 164 in which the flux guide bodies 150 'are anchored in the manner shown.
  • the ring 160 is provided on its in Figs. 6, 7 and 10 to 12 lower side with projections 168 which have approximately the shape of a wedge. By applying an ultrasound generator in the direction of the arrows 170 of FIG. 10, it is achieved that these projections 168 dig into the shoulder 84 and weld with it.
  • the split tube 82 may have a smaller wall thickness in this case.
  • Figures 13 and 14 show a similar embodiment, but with a wedge-like blade 174 being continuous. The attachment is the same as shown in FIGS. 10 to 12.
  • FIG. 15 shows a section through a ring 160 and the flux guide body 1 50 "anchored therein.
  • FIG. 16 shows in an enlarged representation that the flux guide bodies 150" are wedge-shaped in this variant at the radially inner end in order to effect secure anchoring , Also, as shown in FIG. 17, the flux guide 150 "has a hook-like widening 180 at the radially inner end.
  • the flux guide bodies 150 also act as flux concentrators because they have approximately the same length at their radially outer region as the magnet 67, while at their radially inner region they are approximately the shorter length of the magnet 92, so that the flow of the magnet 67 is concentrated. This also takes into account the fact that the magnets 67 and 92 are unequal in length and improves the torque that can be transmitted from the magnetic coupling.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Rotary Pumps (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)

Abstract

L'invention concerne un dispositif de transport de fluides comprenant une pompe à fluide dotée d'une roue de pompe (90) qui est reliée à un premier aimant permanent (92). La roue de pompe (90) est montée rotative dans un carter de pompe (80, 82, 84, 86, 88) étanche aux liquides. Dans la zone du premier aimant permanent (92), ce carter est réalisé comme un pot à fentes (80, 82). Ce dispositif a également un moteur électrique à commutation électronique (20) dotée d'un stator (22) et d'un rotor (26) rotatif par rapport stator. Le rotor présente un deuxième aimant permanent (67) qui coopère avec le premier aimant permanent (92) à la manière d'un accouplement à aimant (94). L'espace situé entre le deuxième aimant permanent (67) et le pot à fentes (80, 82) abrite une pluralité de conducteurs de flux ferromagnétique doux (150). Ces conducteurs sont espacés de telle façon qu'ils représentent sur la zone du pot à fentes (80, 82), cette zone étant associée au premier aimant permanent (92), le champ magnétique du deuxième aimant permanent (67), ce champ étant actif à son extrémité opposée au pot à fentes (80, 82),.
PCT/EP2005/008668 2004-10-06 2005-08-10 Dispositif de transport de fluides WO2006037396A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US11/576,688 US20090022607A1 (en) 2004-10-06 2005-08-10 Arrangement for delivering fluids
DE502005006436T DE502005006436D1 (de) 2004-10-06 2005-08-10 Anordnung zur förderung von fluiden
EP05786321A EP1797330B1 (fr) 2004-10-06 2005-08-10 Dispositif de transport de fluides

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202004015648 2004-10-06
DE202004015648.2 2004-10-06

Publications (1)

Publication Number Publication Date
WO2006037396A1 true WO2006037396A1 (fr) 2006-04-13

Family

ID=35285409

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2005/008668 WO2006037396A1 (fr) 2004-10-06 2005-08-10 Dispositif de transport de fluides

Country Status (5)

Country Link
US (1) US20090022607A1 (fr)
EP (1) EP1797330B1 (fr)
AT (1) ATE420292T1 (fr)
DE (1) DE502005006436D1 (fr)
WO (1) WO2006037396A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4999157B2 (ja) * 2006-12-28 2012-08-15 アネスト岩田株式会社 磁気カップリングを介して駆動源に結合した流体機械
US10722627B1 (en) 2018-05-24 2020-07-28 RBTS Inc. Blood pump bearing with integrated fluid diffuser/inducer system
DE102018129612A1 (de) * 2018-11-23 2020-05-28 Ebm-Papst St. Georgen Gmbh & Co. Kg Rotorbaugruppe
US11739756B2 (en) * 2020-11-30 2023-08-29 Deere & Company Multi-pump apparatus of cooling system

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Publication number Priority date Publication date Assignee Title
DE4301675A1 (de) * 1993-01-22 1994-07-28 Pierburg Gmbh Elektronisch kommutierter Elektromotor
JPH06241185A (ja) * 1993-02-17 1994-08-30 Daiyu Kogyo Kk ポンプ
JPH09163675A (ja) * 1995-12-06 1997-06-20 Jidosha Denki Kogyo Co Ltd マグネットポンプ
US6600649B1 (en) * 2002-05-24 2003-07-29 Mei-Nan Tsai Heat dissipating device
WO2004031588A1 (fr) * 2002-09-28 2004-04-15 Ebm-Papst St. Georgen Gmbh & Co. Kg Dispositif et procede de dissipation de la chaleur d'un composant a refroidir

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US2006A (en) * 1841-03-16 Clamp for crimping leather
US2230717A (en) * 1939-10-24 1941-02-04 Gilbert & Barker Mfg Co Pumping means
DE2005803A1 (de) * 1969-02-10 1971-01-21 Standard Magnet AG Hunenberg (Schweiz) Magnetisches Getriebe
US5895207A (en) * 1993-06-17 1999-04-20 Itt Automotive Europe, Gmbh Electric motor-pump assembly
US6208512B1 (en) * 1999-05-14 2001-03-27 International Business Machines Corporation Contactless hermetic pump
FR2798169B1 (fr) * 1999-09-06 2001-11-16 Siebec Sa Pompe a entrainement magnetique
US6664704B2 (en) * 2001-11-23 2003-12-16 David Gregory Calley Electrical machine
US7424907B2 (en) * 2002-10-01 2008-09-16 Enertron, Inc. Methods and apparatus for an integrated fan pump cooling module

Patent Citations (5)

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Publication number Priority date Publication date Assignee Title
DE4301675A1 (de) * 1993-01-22 1994-07-28 Pierburg Gmbh Elektronisch kommutierter Elektromotor
JPH06241185A (ja) * 1993-02-17 1994-08-30 Daiyu Kogyo Kk ポンプ
JPH09163675A (ja) * 1995-12-06 1997-06-20 Jidosha Denki Kogyo Co Ltd マグネットポンプ
US6600649B1 (en) * 2002-05-24 2003-07-29 Mei-Nan Tsai Heat dissipating device
WO2004031588A1 (fr) * 2002-09-28 2004-04-15 Ebm-Papst St. Georgen Gmbh & Co. Kg Dispositif et procede de dissipation de la chaleur d'un composant a refroidir

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Title
PATENT ABSTRACTS OF JAPAN vol. 018, no. 628 (M - 1713) 30 November 1994 (1994-11-30) *
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 10 31 October 1997 (1997-10-31) *

Also Published As

Publication number Publication date
EP1797330B1 (fr) 2009-01-07
US20090022607A1 (en) 2009-01-22
DE502005006436D1 (de) 2009-02-26
EP1797330A1 (fr) 2007-06-20
ATE420292T1 (de) 2009-01-15

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