EP2978972A1 - Pumpe mit elektromotor - Google Patents
Pumpe mit elektromotorInfo
- Publication number
- EP2978972A1 EP2978972A1 EP14703603.2A EP14703603A EP2978972A1 EP 2978972 A1 EP2978972 A1 EP 2978972A1 EP 14703603 A EP14703603 A EP 14703603A EP 2978972 A1 EP2978972 A1 EP 2978972A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rotor
- permanent magnets
- sintered
- pump
- electric motor
- 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.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
- F04C15/008—Prime movers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
- B22F3/16—Both compacting and sintering in successive or repeated steps
- B22F3/164—Partial deformation or calibration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F5/009—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of turbine components other than turbine blades
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
- H02K15/03—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/12—Impregnating, heating or drying of windings, stators, rotors or machines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2230/00—Manufacture
- F04C2230/20—Manufacture essentially without removing material
- F04C2230/22—Manufacture essentially without removing material by sintering
Definitions
- the present invention relates to a pump with an electric motor according to the
- the preamble of claim 1 a method for producing a rotor with permanent magnets according to the preamble of claim 5 and a
- Fuel pumps for conveying fuel to an internal combustion engine comprising a stator and a rotor with
- Permanent magnet excited rotor permanent magnets are installed or integrated in the rotor.
- the rotor and the permanent magnets are produced in a separate sintering process.
- a green compact for the rotor is first pressed from a sintered material with a forming and pressing tool, and then this green compact is sintered in a sintering furnace and after sintering
- the green compacts for the permanent magnets are pressed from a different sintered material by a forming and pressing tool and then sintered in a sintering furnace.
- the sintering of the green compacts for the permanent magnets is carried out separately from the sintering of the green compact of the rotor. After sintering the green compacts of the permanent magnets, these are reworked.
- the sintered Permanent magnets are inserted into recesses on the sintered rotor and fixed to the rotor by means of adhesive. As a result, a complicated cohesive attachment of the sintered permanent magnets by means of adhesive to the recesses of the rotor is disadvantageously required.
- DE 299 13 367 111 shows an internal gear pump with at least one internally toothed ring gear and a meshing, externally toothed impeller, with or without a sickle, and with an electric drive, which is formed by the fact that the ring gear inside a rotor of a brushless
- Electric motor and the rotor adjacent to a stator is arranged, wherein the rotor containing the ring gear outside of a bearing or a
- Sliding bearing is rotatably supported, wherein the stator relative to the rotor and against the interior of the pump is shielded and sealed by the fact that located between the stator and rotor bearings or bearings for
- Liquid impermeable and is tightly connected at its two end faces each with a cover.
- Pump according to the invention with electric motor in particular for a motor vehicle, for conveying a fluid, comprising an impeller with conveying elements, of which a rotational movement about a rotation axis is executable, an existing on the impeller working space, an electric motor with a stator and a rotor, wherein the rotor provided with permanent magnets,
- a housing wherein the rotor and the permanent magnets are made by sintering, wherein the permanent magnets are connected to the rotor with a material-locking sintered connection to the rotor.
- Permanent magnets are on the rotor with a cohesive
- the cohesive sintered connection is produced in a common sintering process of both the green compact for the rotor and the green compacts for the permanent magnets, and thereby can be applied to the complex adhesive bond in an advantageous manner between the Permanent magnets and the rotor are dispensed with.
- the production of the pump with electric motor is thus much cheaper and easier.
- the impeller with the conveying elements and the electric motor are arranged within the housing.
- the permanent magnets are arranged in recesses, in particular in blind holes or in through holes, of the rotor and / or the permanent magnets are connected to the rotor with a positive connection with the rotor, in particular due to a corresponding geometry of
- Recesses and / or geometry of the permanent magnets In an arrangement of the permanent magnets in the recesses of the rotor, these can be particularly easily attached to the rotor. In addition, the guaranteed
- the recesses have a corresponding geometry and the permanent magnets have a complementary complementary geometry, so that thereby an additional positive connection between the permanent magnet and the rotor is present, in particular for example in that additional grooves are arranged on the recesses within which a head start of
- Permanent magnets is arranged.
- the pump is integrated in the electric motor or vice versa, by the rotor is formed by the impeller and / or the
- Permanent magnets on the rotor are connected to a frictional connection with the rotor.
- the permanent magnets and the rotor are made of a different sintered material, so that thereby a different shape change occurs during sintering and thereby the permanent magnets on the rotor, in particular at the recesses of the rotor, under a bias and thus positively connected to the rotor.
- the rotor is made with the permanent magnets with a method described in this patent application and / or the pump is designed as an internal gear pump and / or the electric motor is commutated electronically.
- Method according to the invention for producing a rotor with permanent magnets for an electric motor with the following steps: shaping, in particular pressing or casting, a green body for the rotor of a sintered material, in particular of a sintering powder or a sintered granulate, molding, in particular pressing or casting, green bodies for the
- Permanent magnets of a sintered material in particular of a sintered powder or a sintered granules, sintering of the green compact of the rotor to the rotor in a sintering process, sintering of the green compacts for the permanent magnets to the
- Permanent magnets in a sintering process connecting the permanent magnets to the rotor, wherein the green compact for the rotor and the green compacts for the
- Permanent magnets are connected to the green compacts of the rotor,
- the green compacts of the permanent magnets and the green compact of the rotor are heated, in particular below the melting temperature, and this leads to a reduction in the volume of the green compacts as a change in shape and thus to a compaction, as well as to a surface diffusion between the particles of the sintering materials, so that thereby during sintering the green of the
- Permanent magnets are connected to the green compacts of the rotor.
- the green compact for the rotor is molded and pressed from a first sintered material, in particular a first sintered powder or a first sintered granule, and the green bodies for the permanent magnets are formed and pressed from a second sintered material, in particular a second sintered powder or a second sintered granulate, and the First and second sintered material consist of a different material and / or the green compacts of
- Permanent magnets are non-positively connected to the green compact of the rotor during the sintering process and / or the green compact for the rotor and the green compacts for the permanent magnets are sintered in an identical sintering furnace, in particular a vacuum furnace.
- the first and second sintered material are different, since the rotor requires a different material than for the
- the first and second sintered material during sintering a different volume reduction as a change in shape, and the volume reduction of the rotor is smaller than the volume reduction of
- the second sintered material is introduced into recesses, in particular in blind holes or through holes, of the green compact of the rotor, and subsequently the second sintered powder is introduced inside the recesses of the rotor
- Green bodies for the permanent magnets formed and pressed.
- the green compact for the rotor with a first shape
- Pressing tool formed and pressed and the green compacts are for the
- Permanent magnets molded and pressed with the second forming and pressing tool, and preferably, the first and second forming and pressing tool are different.
- the green compact for the rotor is first molded, in particular pressed, and then the green compacts are used for the rotor
- Pressing tool for shaping and pressing the green body of the rotor in this case has a geometry, so that additional geometries are formed on the recesses of the rotor, for. B. a groove or a bore, so that subsequently when introducing the second sintered material in the recess after pressing the green body of the rotor and the second sintered material for the permanent magnets fills in these additional geometries and thereby is an additional
- the first sintered material in particular the first sintered powder or the first sintered granules
- the forming and pressing tool in particular the first forming and pressing tool
- the second sintering material in particular the second sintering powder or the second sintered granules
- the permanent magnets after the
- the permanent magnets are magnetized. This is possible because the permanent magnets are formed of a corresponding material.
- the rotor with the permanent magnets is processed after the common sintering process with at least one further method, in particular sandblasting and / or grinding and / or polishing and / or deburring and / or cleaning and / or clamping and / or packaging.
- Method according to the invention for producing a pump with an electric motor comprising the steps of: providing an impeller with conveying elements for the pump, making available a housing, making available an electric motor with a stator and a
- Rotor for driving the pump wherein the rotor is provided with permanent magnets and the rotor and the permanent magnets are produced with sintering, arranging and mounting the impeller with conveying elements and the
- Electric motor with the housing, in particular within the housing, to the pump with electric motor, wherein the rotor is made with the permanent magnets with a method described in this patent application.
- the impeller and the rotor are produced in such a way that the impeller with the conveying elements and the rotor is formed and / or an electronically commutated electric motor to
- the pump is provided as an internal gear pump with an internal gear and an external gear, and in particular, the external gear is made to the effect that the
- the permanent magnets and / or the second sintered material for the permanent magnets consist at least partially, in particular completely, of a mixture of neodymium (Nd), iron (Fe) and boron (B) or of a mixture of samarium (Sm), Cobalt (Co) and iron
- the conveying elements are blades or teeth of a gear.
- the pump is a gear pump, in particular internal gear pump.
- the impeller forms the rotor and / or on or in the impeller, the permanent magnets are arranged or integrated, d. H.
- the pump is integrated in the electric motor or vice versa.
- the pump is integrated in the electric motor or vice versa, preferably, the pump and the electric motor are inseparable units.
- the pump with electric motor comprises a
- the pump is an external gear pump or a centrifugal pump or a vane cell pump.
- the pump with, preferably integrated, electric motor comprises a, preferably electronic, control unit for controlling the energization of the electromagnets.
- Suitably consists of the housing of the prefeed pump and / or the housing of the high-pressure pump and / or the inner and / or outer gear at least partially, in particular completely, made of metal, for. As steel or aluminum.
- the delivery rate of the electrical feed pump can be controlled and / or regulated.
- FIG. 1 is a highly schematic view of a high-pressure injection system
- FIG. 2 is a perspective view of a prefeed pump without housing and a stator
- FIG. 3 is an exploded view of the prefeed pump of FIG. 2,
- FIG. 4 is a plan view of a green compact of the rotor before a sintering process in a first embodiment
- FIG. 5 shows a plan view of the green compact of the rotor with the green bodies of the permanent magnets before the sintering process in a second
- FIG. 6 is a section AA of FIG. 4 of the green of the rotor
- Fig. 7 shows a section BB of FIG. 5 of the green compact of the rotor with a green compact of a permanent magnet and
- FIG. 8 is a flowchart of a method for producing a rotor with permanent magnets.
- FIG. 1 shows a pump arrangement 1 of a high-pressure injection system 2.
- An electric prefeed pump 3 conveys fuel from a fuel tank 41 through a fuel line 35. Subsequently, the fuel is conveyed from the electric prefeed pump 3 to a high-pressure pump 7.
- the high-pressure pump 7 is of an internal combustion engine 39 by means of a
- the electric prefeed pump 3 has an electric motor 4 and a pump 5 (FIGS. 2 and 3).
- the electric motor 4 of the pump 5 is integrated into the pump 5 and further, the electric prefeed pump 3 at the
- High pressure pump 7 arranged directly.
- the high pressure pump 7 promotes
- Fuel under high pressure for example, a pressure of 1000, 3000 or 4000 bar, through a high-pressure fuel line 36 to a high-pressure rail 42.
- a combustion chamber for example, a combustion chamber, not shown
- Fuel is returned by means of a return fuel line 37 to the
- the porting openings 28 (FIG. 2) of the electric prefeed pump 3 are connected to the high-pressure pump 7 without an external connection.
- the mounting position of the electric prefeed pump 3 to the high-pressure pump 7 is chosen to the effect that by short
- Pre-feed pump 3 a fuel filter 38 is installed.
- the fuel line 35 can be formed inexpensively from the fuel tank 41 to the electric prefeed pump 3 in an advantageous manner, as they do not Must withstand overpressure.
- the electric motor 4 (FIGS. 2 and 3) of the electric prefeed pump 3 is operated with three-phase current or alternating current and can be controlled and / or regulated in power.
- the three-phase current or alternating current for the electric motor 4 is from a power electronics, not shown, from a DC voltage network of a vehicle electrical system of a motor vehicle
- the electric prefeed pump 3 is thus an electronically pumped prefeed pump 3rd
- the electric prefeed pump 3 has a housing 8 with a housing pot 10 and a housing cover 9 (FIG. 3). Within the housing 8 of
- Pre-feed pump 3 are the pump 5 as internal gear pump 6 and
- Gear pump 26 and the electric motor 4 is arranged.
- the housing pot 10 is provided with a recess 56.
- the electric motor 4 has a stator 13 with windings 14 as electromagnets 15 and a soft iron core 45 as a soft magnetic core 32, which is formed as a laminated core 33.
- the pump 5 is positioned as an internal gear pump 6 with an internal gear 22 with an internal gear ring 23 and an external gear 24 with an external gear ring 25.
- the inner and outer gear 22, 24 thus represents a gear 20 and an impeller 18 and the inner and outer toothed ring 23, 25 have teeth 21 as conveying elements 19.
- External gear 22, 24 forms a working space 47.
- permanent magnets 17 are installed, so that the external gear 24 also forms a rotor 16 of the electric motor 4.
- the electric motor 4 is thus integrated into the pump 5 or vice versa.
- the electromagnets 15 of the stator 13 are alternately energized, so that due to the on the
- Electromagnet 15 resulting magnetic field of the rotor 16 and the
- External gear 24 is set in a rotational movement about a rotation axis 27.
- electrical contact elements 34 are arranged, which serve to energize the electromagnets 15.
- the contact elements 34 are after assembly in the recess 56 of the housing pot 10th
- the housing cover 9 serves as a bearing 11 or thrust bearing 11 or slide bearing 1 1 for the inner or outer gear 22, 24. Further, in the housing cover 9, a suction port opening 29 and a pressure porting opening 30, each as
- the housing pot 9 and the housing cover 10 each have three holes 46, in which screws not shown for
- Permanent magnets 17 are manufactured with sintering. 4 and 6, a first embodiment of the green compact 51 for the rotor 16 is shown. From a first sintered material, for. B. a sintered powder, the green body 51 is pressed or molded for the rotor 16 with a first mold and pressing tool 58. In this case, the green body 51 has six recesses 48 as blind holes 49. After pressing the green body 51 for the rotor 16 is a second
- blind holes 49 filled and with a second forming and pressing tool 59 the second sintered material in the six blind holes 49 is pressed. During pressing, an additional compression of the second sintered material takes place.
- the first forming and pressing tool 58 has a corresponding geometry, so that the green compact 51 of the rotor 16 with the six recesses 48 as
- blind holes 49 are formed and with the external teeth ring 25 with teeth 21.
- permanent magnets 17 both sintered permanent magnets 17 without magnetic properties and magnetic permanent magnets 17 after magnetization with a magnetic field are considered.
- a second embodiment of the green body 51 for the rotor 16 is shown. In the following, essentially only the
- the recesses 48 are not formed as blind holes 49 but as through holes 50.
- the second sintered material has already been filled in the through holes 50 and then by means of the second forming and pressing tool 59, the second sintered material in the
- FIG. 8 shows a flowchart for producing the rotor 16.
- feeding 53 of the first sintered substance to the first forming and feeding takes place Pressing tool 58.
- the first sintered material consists for example of sintered steel.
- feeding 54 of the second sintered material of neodymium (Nd), iron (Fe) and boron (B) takes place.
- Green compacts 51 of the rotor 16 introduced and then there is a pressing 57 of the green compacts 52 of the permanent magnets 17 within the recesses 48 with the second forming and pressing tool 59.
- the green compact 51 of the rotor 17 with the already pressed green bodies 52 of the permanent magnets 17 within the Recesses 48 introduced into a vacuum furnace 61 as a sintering furnace and then takes place here sintering 60 and a sintering process 60 so that together and at the same time the green body 51 of the rotor 16 are sintered with the green body 52 of the permanent magnets 17 in the vacuum furnace 61 and heated.
- after taking out the sintered rotor 16 with the sintered permanent magnet 17 and the cooling takes place
- Transport 64 and a subsequent reworking with sand blasting 62 After a further transport 64 is an insert 65 in a clamping nest. In addition, takes place between the sandblasting 62 and the packaging 63, a material testing 31. After inserting 65 in the clamping nest, not shown, a clamping 66 and then a reworking by
- Deburring 71 and the cleaning 72 a further transport 64 is performed. After cleaning 72, a magnetization 74 of the permanent magnets 17 or of the sintered permanent magnets 17 takes place, which after sintering still have no magnetic properties or a magnetic field. Between the cleaning 72 and the magnetizing 74, a visual inspection 73 is carried out.
- Permanent magnet 17 is carried out a test 75 of the magnetic field of the magnetic permanent magnets 17. At the end of the manufacturing process, the rotors 16 are supplied to the permanent magnet 17 to the step of packaging 63.
- the green body 51 of the rotor 16 without the permanent magnet 17 or the green bodies 52 of the permanent magnets 17 is pressed separately from the green bodies 52 for the permanent magnets 17 and then the green compact 51 for the rotor 16 and the green compacts 52 for the permanent magnets 17 together and simultaneously sintered in the vacuum furnace 61, so that thereby the green compacts 52 for the permanent magnets 17 cohesively with a
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- General Engineering & Computer Science (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013205442.4A DE102013205442A1 (de) | 2013-03-27 | 2013-03-27 | Pumpe mit Elektromotor |
PCT/EP2014/052623 WO2014154388A1 (de) | 2013-03-27 | 2014-02-11 | Pumpe mit elektromotor |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2978972A1 true EP2978972A1 (de) | 2016-02-03 |
Family
ID=50071625
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14703603.2A Withdrawn EP2978972A1 (de) | 2013-03-27 | 2014-02-11 | Pumpe mit elektromotor |
Country Status (6)
Country | Link |
---|---|
US (1) | US20160061201A1 (de) |
EP (1) | EP2978972A1 (de) |
JP (1) | JP6216438B2 (de) |
CN (1) | CN105143674B (de) |
DE (1) | DE102013205442A1 (de) |
WO (1) | WO2014154388A1 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104801702A (zh) * | 2015-03-18 | 2015-07-29 | 安徽恒均粉末冶金科技股份有限公司 | 叶片式转向泵的粉末冶金定子及其制造工艺 |
DE102015207748A1 (de) * | 2015-04-28 | 2016-11-03 | Gkn Sinter Metals Engineering Gmbh | Fluidpumpe |
DE102015108924B4 (de) * | 2015-06-05 | 2017-04-13 | Nidec Gpm Gmbh | Mechanisch angetriebene Flüssigkeits-Verdrängerpumpe |
DE102015108925B8 (de) * | 2015-06-05 | 2016-08-18 | Nidec Gpm Gmbh | Elektrisch angetriebene Flüssigkeits-Filterpumpe |
DE102015108923B3 (de) * | 2015-06-05 | 2016-06-16 | Nidec Gpm Gmbh | Elektrisch angetriebene Flüssigkeits-Verdrängerpumpe |
US11136975B2 (en) * | 2016-08-09 | 2021-10-05 | Nidec Corporation | Drive apparatus having oil passage defined in stopper body |
EP3629453A1 (de) * | 2018-09-27 | 2020-04-01 | Siemens Aktiengesellschaft | Verfahren zum sintern eines mehrkomponentigen sinterzeugs, elektrische maschine und elektrisches fahrzeug |
KR20220107277A (ko) * | 2020-01-09 | 2022-08-02 | 게이츠 코포레이션 | 축방향 자속 모터를 위한 영구자석 회전자 |
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US4097392A (en) * | 1975-03-25 | 1978-06-27 | Spang Industries, Inc. | Coprecipitation methods and manufacture of soft ferrite materials and cores |
DE19912470B4 (de) * | 1999-03-19 | 2005-06-02 | Vacuumschmelze Gmbh | Verbundteil und Verfahren zu dessen Herstellung |
DE29913367U1 (de) | 1999-07-30 | 1999-12-09 | Pumpenfabrik Ernst Scherzinger GmbH & Co. KG, 78120 Furtwangen | Innen-Zahnradpumpe, deren Hohlrad das Innere eines Rotors eines Elektromotors ist |
US6660225B2 (en) * | 2000-12-11 | 2003-12-09 | Advanced Materials Technologies Pte, Ltd. | Method to form multi-material components |
US6856051B2 (en) * | 2001-10-03 | 2005-02-15 | Delphi Technologies, Inc. | Manufacturing method and composite powder metal rotor assembly for circumferential type interior permanent magnet machine |
US6889419B2 (en) * | 2002-04-16 | 2005-05-10 | Delphi Technologies, Inc. | Method of making a composite electric machine component of a desired magnetic pattern |
DE10307231A1 (de) * | 2003-02-14 | 2004-09-09 | Minebea Co., Ltd. | Elektromotor und Verfahren zum Herstellen eines Rotors für einen derartigen Elektromotor |
JP2004300483A (ja) * | 2003-03-28 | 2004-10-28 | Asahi Kasei Chemicals Corp | 結晶質と非晶質組織から成る材料 |
DE102007032443A1 (de) * | 2007-07-10 | 2009-01-15 | Voith Patent Gmbh | Hybridlager und Verfahren zu dessen Herstellung |
CN101652820B (zh) * | 2007-09-04 | 2012-06-27 | 日立金属株式会社 | R-Fe-B系各向异性烧结磁铁 |
JP2009225608A (ja) * | 2008-03-18 | 2009-10-01 | Nitto Denko Corp | モータ用永久磁石及びモータ用永久磁石の製造方法 |
CN102483980B (zh) * | 2010-03-04 | 2016-09-07 | Tdk株式会社 | 稀土烧结磁体和电动机 |
DE102010041234A1 (de) * | 2010-09-23 | 2012-03-29 | Robert Bosch Gmbh | Pumpe mit Elektromotor |
JP5759740B2 (ja) * | 2011-02-15 | 2015-08-05 | 株式会社山田製作所 | 電動オイルポンプ |
JP2013005659A (ja) * | 2011-06-20 | 2013-01-07 | Jtekt Corp | 電動モータ |
-
2013
- 2013-03-27 DE DE102013205442.4A patent/DE102013205442A1/de not_active Withdrawn
-
2014
- 2014-02-11 EP EP14703603.2A patent/EP2978972A1/de not_active Withdrawn
- 2014-02-11 US US14/780,945 patent/US20160061201A1/en not_active Abandoned
- 2014-02-11 WO PCT/EP2014/052623 patent/WO2014154388A1/de active Application Filing
- 2014-02-11 CN CN201480023959.5A patent/CN105143674B/zh not_active Expired - Fee Related
- 2014-02-11 JP JP2016504522A patent/JP6216438B2/ja not_active Expired - Fee Related
Non-Patent Citations (2)
Title |
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None * |
See also references of WO2014154388A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2014154388A1 (de) | 2014-10-02 |
US20160061201A1 (en) | 2016-03-03 |
CN105143674A (zh) | 2015-12-09 |
CN105143674B (zh) | 2018-01-16 |
JP6216438B2 (ja) | 2017-10-18 |
JP2016514787A (ja) | 2016-05-23 |
DE102013205442A1 (de) | 2014-10-02 |
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