WO2022073547A1 - Stator pour machine électrique à flux axial, procédé de fabrication d'un stator, et machine électrique à flux axial dotée d'un stator - Google Patents

Stator pour machine électrique à flux axial, procédé de fabrication d'un stator, et machine électrique à flux axial dotée d'un stator Download PDF

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Publication number
WO2022073547A1
WO2022073547A1 PCT/DE2021/100785 DE2021100785W WO2022073547A1 WO 2022073547 A1 WO2022073547 A1 WO 2022073547A1 DE 2021100785 W DE2021100785 W DE 2021100785W WO 2022073547 A1 WO2022073547 A1 WO 2022073547A1
Authority
WO
WIPO (PCT)
Prior art keywords
stator
stator teeth
stiffening ring
ring element
housing
Prior art date
Application number
PCT/DE2021/100785
Other languages
German (de)
English (en)
Inventor
Holger Witt
Original Assignee
Schaeffler Technologies AG & 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 Schaeffler Technologies AG & Co. KG filed Critical Schaeffler Technologies AG & Co. KG
Publication of WO2022073547A1 publication Critical patent/WO2022073547A1/fr

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Classifications

    • 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
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
    • H02K1/182—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures to stators axially facing the rotor, i.e. with axial or conical air gap
    • 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
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/16—Stator cores with slots for windings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/24—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos

Definitions

  • Stator for an electric axial flux machine method for manufacturing a stator and electric axial flux machine with a stator
  • the invention relates to a stator, in particular for an electrical axial flow machine. Furthermore, the invention relates to a method for producing a stator according to the invention and an electrical axial flow machine with a stator according to the invention.
  • the electric drive train of motor vehicles is known from the prior art. This consists of components for energy storage, energy conversion and energy transmission. Energy conversion components include radial flux machines and axial flux machines.
  • radial flux machines often only have one operating point at which they have the best efficiency. Accordingly, they are not designed to adjust the operating point as a function of the changing requirements placed on them and thereby achieve the highest efficiency in accordance with the different requirements of the different operating parameters or at different operating points.
  • An electrical axial flux machine also referred to as a transverse flux machine, is a motor or generator in which the magnetic flux between a rotor and a stator is realized parallel to the axis of rotation of the rotor.
  • Other designations for electric axial flux machines are also brushless DC motors, permanently excited synchronous motors or disc motors.
  • Such an axial flow machine can be designed in types that differ in the arrangement of the rotor and/or stator and realize different special features and advantages in the application, for example as a traction machine for a vehicle. For example, two basic designs of axial flow machines for traction applications are already known.
  • the first basic design is the I-arrangement with a rotor in the middle and a stator to the right and left of the disc-shaped rotor.
  • a second basic design is the H-arrangement with a stator in the middle and a rotor disk on the right and left.
  • the advantage of the axial flow machine is that it has a high power and torque density.
  • Axial flux machines exist with different winding forms.
  • a common form of winding is the single-tooth winding.
  • single-tooth windings form small winding overhangs, they generate a magnetic field with a high proportion of harmonics, i.e. waves with a different frequency than the number of revolutions of the rotor of the axial flux machine, which negatively influence the acoustics and the efficiency.
  • Axial flux machines with distributed windings have the advantage that the aforementioned disadvantages do not occur, or only to a reduced extent.
  • the end windings of these distributed windings require a large amount of space in the axial and/or radial direction. Large winding overhangs are not desirable, especially in axial flow machines, since they limit the maximum diameter of the active components in the event of radial expansion, which reduces the maximum torque that can be made available.
  • the stator has a plurality of axially aligned stator teeth which are separated from one another by slots. Turns of a winding run around the stator teeth. It can be seen that the winding overhangs have a relatively large volume requirement in the axial and/or radial direction.
  • EP 2 787 610 A1 discloses a device for the production of stators and rotors for axial motors.
  • the device has a sensor which The position of the groove edges on the coiled sheet metal strip of the laminated core is detected and this position of the groove edge is compared with a target position and, if the deviation is detected, the drive means of the winding unit is controlled in such a way that the position deviation detected is compensated.
  • stator core wound from electrical steel is disclosed in this publication.
  • the yoke In order to optimize space and weight, the yoke is as thin as possible in the axial direction and is therefore less rigid. Since the torque forces occur at the tooth tips, they tend to vibrate in the circumferential or tangential direction.
  • the innermost and outermost winding layers must be specially fixed and must not roll up or "fan out”.
  • US 2011/0309694 A1 discloses a permanent electrical machine with a stator and a rotor which is mounted in the stator for rotation.
  • the stator is provided with wound coils and the rotor is provided with permanent magnets to interact with the coils across an air gap between the rotor and stator.
  • the machine can be either a motor or a generator, and in many embodiments is an axial flux machine.
  • the permanent magnet machine is a yokeless and segmented armature machine.
  • this document shows a stator that consists of several discrete individual teeth that are glued to plastic shells for attachment. These have pockets at the locations of the stator teeth, which hold the stator teeth in a form-fitting manner.
  • the present invention is based on the object of providing a stator, in particular for an electrical axial flux machine, a method for producing a stator and an electrical axial flux machine with a stator, which combine high power density and torque density of an electrical axial flux machine with a long service life.
  • the object is achieved by a stator for an electrical axial flux machine according to claim 1, by a method for producing a stator according to claim 6 and by an electrical axial flux machine according to claim 10.
  • Advantageous embodiments of the stator are shown in subclaims 2-5.
  • Advantageous embodiments of the method are shown in subclaims 7-9.
  • the features according to the invention result from the independent claims, for which advantageous embodiments are presented in the dependent claims.
  • the features of the claims can be combined in any technically meaningful way, for which the explanations from the following description can also be used, as can features from the figures, which comprise supplementary embodiments of the invention.
  • the terms “axial”, “radial” and “circumferential direction” relate to the rotationally symmetrical arrangement of the stator teeth of the stator, or to the axis of rotation of the rotor of the axial flow machine.
  • the invention relates to a stator for an electrical axial flux machine, comprising a stator core with a plurality of axially protruding stator teeth arranged along a circumference. At least one winding of at least one electrical conductor element is wrapped around the stator teeth in a plurality of turns.
  • the stator comprises a radially inner central element and a housing surrounding the stator teeth on their radial outside, as well as on the side of the stator teeth axially opposite the side of the axial fixation of the stator teeth, radially between the central element and the stator teeth and/or radially between the housing and the stator teeth and a stiffening ring element in each case axially next to the end windings.
  • the stiffening ring element exerts a compressive stress on the stator teeth in the radial direction and thus realizes a non-positively acting connection with the stator teeth.
  • the stiffening ring element is connected to the stator teeth by means of an adhesive connection.
  • the stator teeth can be made of ferromagnetic material and have a trapezoidal cross-sectional shape. Because at least one winding of at least one electrical conductor element is wrapped around the stator teeth in several turns, they form winding overhangs both on the radially inner side of the stator teeth and on the radially outer side of the stator teeth.
  • the central element forms an inner seal to the shaft.
  • stator teeth are braced in the radial direction and also in the circumferential direction by means of frictional locking. This ensures a rigid connection between the ends of the stator teeth. In addition, it can be ensured in this way that the vibration modes do not travel from the stator tooth into a yoke area of the stator can penetrate. This significantly reduces unwanted audible and/or tactile vibrations as well as anti-phase vibrations of the stator teeth caused by torque forces at the tooth tips of the stator teeth. In the case of laminated stator cores, the laminations continue to be pressed together, which prevents the laminations from detaching from one another. Furthermore, the stiffening ring element can also fix the winding heads and/or cover winding grooves.
  • the respective stiffening ring element can have at least one radially inwardly projecting contour and/or radially outwardly projecting contour, starting from its peripheral surface, which interacts positively with a correspondingly complementary shaped element in or on the stator teeth.
  • the radially inwardly projecting contour and/or the radially outwardly projecting contour of the respective stiffening ring element can project into a corresponding recess formed between two adjacent stator teeth. If necessary, these recesses are the openings of the winding slots between two stator teeth arranged next to one another. In this way, a positive fit can be achieved between the relevant stiffening ring element and the stator teeth.
  • the radially inwardly projecting contour and/or radially outwardly projecting contour of the respective stiffening ring element can be glued to the correspondingly complementary shaped element in or on the stator teeth.
  • the stiffening ring element can have a plurality of axially projecting support elements which are arranged on the side of the stiffening ring element which faces the stator teeth. During assembly of the stiffening ring element, this is positioned on the side of the stator teeth that is axially opposite to the side of the axial fixation of the stator teeth, radially between the central element and the stator teeth and/or radially between the housing and the stator teeth and in each case axially next to the end windings. After positioning, the stiffening ring element can be braced against the stator teeth by an axial force.
  • the multiple axially protruding support elements are used for the axial support of the stiffening ring element.
  • the stator has two stiffening ring elements, namely an inner stiffening ring element, which is supported radially on the central element, and an outer stiffening ring element, which is supported radially on the housing.
  • the elements of the stator that fix the radially inner stiffening ring element in the radial direction are the central element and the stator teeth; and the elements of the stator that fix the radially outer stiffening ring element, the stator teeth and the housing
  • the stiffening ring element With this configuration of the stiffening ring element, the central element and a bearing support wall formed perpendicularly to the central element, as well as the inner stiffening ring element with a plurality of axial support elements, can form an inner volume suitable for accommodating winding overhangs.
  • this arrangement of the components mentioned enables a closed flow of forces in these components, so that the forces occurring here do not burden other components of the stator.
  • the axial support elements are supported against the bearing support wall.
  • the housing of the stator and a partition perpendicular to the housing form an outer volume suitable for accommodating end turns.
  • this arrangement of the components mentioned enables a closed flow of forces in these components, so that the forces occurring here do not burden other components of the stator.
  • the axial support elements are supported against the partition wall.
  • the stiffening ring element can have a conical ring area which, due to axial deformation and the resulting radial expansion, exerts radial clamping forces on the elements of the stator that fix the stiffening ring element in the radial direction.
  • the cone-shaped ring area allows for easy joining of the stiffening ring element during assembly.
  • stator teeth can protrude axially from a stator yoke.
  • a further aspect of the invention is a method for producing a stator for an electric axial flux machine, in which a stator core with a plurality of along axially protruding stator teeth arranged on a circumference, around which at least one winding of at least one electrical conducting element is wrapped in several turns, and a radially inner central element and/or a housing is positioned in relation to the stator core in such a way that the stator teeth at their radial inside surround the central element or that the stator teeth are surrounded on the radial outside of the housing.
  • a stiffening ring element is arranged radially between the central element and the stator teeth and/or radially between the housing and the stator teeth and in each case axially next to the end windings, so that the stiffening ring element can be placed on the Stator teeth exerts a compressive stress in the radial direction and thus realizes a non-positive connection with the stator teeth.
  • the stiffening ring element r is connected to the stator teeth by means of an adhesive connection.
  • the ends of the stator teeth are pressed radially, so that a frictional connection is made possible in order to rigidly couple the stator teeth to one another in the circumferential direction through the stiffening ring element, so that anti-phase vibrations of the stator teeth, which occur due to torque forces at the tooth tips of the stator teeth, are reduced.
  • the stiffening ring element is provided with a conical ring area, this stiffening ring element being positioned in the axial direction on the central element or on the housing, and then by shifting the side of the stiffening ring element facing the central element or the housing and fixing this side of the stiffening ring element on the central element or on the housing with simultaneous axial fixation of the radially opposite side that bears against the stator teeth, of the stiffening ring element the conical ring area of the stiffening ring element is stretched and its radial extension is thus increased.
  • the stiffening ring element can advantageously exert a radial compressive stress on the stator teeth.
  • the fixing of the side of the reinforcing ring element facing the central element or the housing can be positive and/or non-positive on the central element or on the housing take place.
  • the side of the stiffening ring element that faces the central element or the housing can be fixed rigidly and cost-effectively on the central element or on the housing.
  • the cone-shaped ring area can be stretched by the action of a force acting axially on the cone-shaped ring area.
  • the conical ring area expands in the radial direction, which in turn leads to a radial force acting on the stator teeth.
  • Each of the two stiffening ring elements can also be thermally joined, e.g. the inner stiffening ring element is pulled cold onto the radially inner side of the stator teeth and the outer stiffening ring element is pulled warm onto the radially outer side of the stator teeth and, after temperature equalization, corresponding radial clamping forces act.
  • the fixing of the ends of the stator teeth can also be used for other types of axial flux machines such as I-arrangement, H-arrangement, half-I-arrangement.
  • the principle can also be used for axial flux machines with discrete individual teeth. Laminated stator teeth without a connecting stator yoke can also be fastened using the method described above.
  • a further aspect of the present invention includes an electrical axial flow machine with a rotor and with a stator according to the invention.
  • Fig. 1 a perspective sectional view of an electrical
  • Fig. 3 A side view of an inner stiffening ring element before
  • FIG. 4 is a perspective view of the inner stiffening ring member of FIG. 3;
  • Fig. 5 a side view of an inner stiffening ring element according to Fig.
  • FIG. 1 shows a perspective sectional view of an electrical axial flow machine 1 in an I-arrangement 2 with a rotor 3 and two stators 4.
  • the rotor 3 is disk-shaped. In the I-arrangement 2 shown, the rotor 3 is arranged midway between a left-hand stator 4 on the left-hand side 6 of the rotor 3 and a right-hand stator 4 on the right-hand side 8 of the rotor 3 .
  • the rotor 3 is rotatable via a rotor shaft 9 about an axis 42 shown by a broken line.
  • the two stators 4 each have a radially inner central element 11 by means of which the respective stator 4 is arranged on the rotor shaft 9 .
  • Each stator 4 is arranged in a rotationally fixed manner relative to the rotor shaft 9 and the rotor 3 via a respective shaft bearing 12 .
  • Each shaft bearing 12 is located between the respective central element 11 and the rotor shaft 9 and allows relative movement of the rotor 3 together with the rotor shaft 9 about the axis 42 with respect to the stator 4.
  • a bearing support wall 13 is arranged perpendicular to each of the central elements 11. There is an air gap 15 between an axial end face of the rotor 3 and an axial end face of the stator 4, which faces the rotor 3.
  • the stator 4 comprises a stator core 10 with a plurality of axially protruding stator teeth 16 arranged along a circumference.
  • a recess 17 is formed between two adjacent stator teeth 16 in each case.
  • the recesses are the openings of winding grooves 18 between two stator teeth 16 arranged next to one another.
  • the respective stator tooth 16 is wrapped by a winding 19 of an electrical conducting element in a plurality of turns 20 . Due to the fact that the stator teeth 16 are wrapped around by at least one winding 19 of at least one electrical conductor element in several turns 20, they form on the radially inner side
  • stator teeth 16 21 of the stator teeth 16 and on the radially outer side 22 of the stator teeth 16 end windings 33,38.
  • the respective stator 4 includes the stator teeth 16 on the radial outside thereof
  • the housing 14 has at least here a cylindrical shape and is designed coaxially to the rotor 3 here.
  • the respective stator 4 includes on the side 24 of the axial fixation of the stator teeth 16 axially opposite side 25 of the stator teeth 16 radially between the central element 11 and the stator teeth 16 and each axially next to the inner end windings 33 an inner stiffening ring element 27.
  • the inner stiffening ring element 27 is supported while radially on the central element 11 from.
  • the respective stator 4 comprises an outer stiffening ring element 28 radially between the housing 14 and the stator teeth 16 and axially next to the outer end windings 38 .
  • the outer stiffening ring element 28 is supported radially on the housing 14 .
  • the respective stiffening ring element 27 , 28 exerts a compressive stress on the stator teeth 16 in the radial direction, which is represented by a double arrow 29 .
  • a non-positive connection is thus realized between the stiffening ring elements 27 , 28 and the stator teeth 16 .
  • the respective stiffening ring element 27 , 28 is connected to the stator teeth by means of an adhesive connection 30 .
  • FIG. 2 shows an exploded view of the electrical axial flow machine 1 according to FIG. 1 .
  • the housing 14 is made in one piece, so that the various components of the respective stator 4 and of the rotor 3 are surrounded by the housing 14 .
  • the rotor 3 comprises a rotor body 31 and a plurality of permanent magnets 32 for generating a respective magnetic field, which are arranged in receiving spaces in the rotor body 2 .
  • the structure of the windings 19 shows that the windings 19 are arranged in such a way that the windings 16 wrap around each of the stator teeth 16 .
  • end windings 33 , 38 on the radially inner side 21 of the stator teeth 16 and on the radially outer side 22 of the stator teeth 16 .
  • the windings 16 form an inner end winding 33
  • the windings 16 form an outer end winding 38 .
  • a respective stiffening ring element 27 , 28 has a plurality of axially projecting support elements 34 which are arranged on the side 25 of the stiffening ring element 27 , 28 which faces the stator teeth 16 .
  • the central element 11 and the bearing support wall 13 formed perpendicularly to the axial central element 11 and the inner stiffening ring element 27 with a plurality of axial support elements 34 form an inner volume 35 for receiving the inner end windings 33 and enable a closed power flow.
  • an axial force 36 is applied to the inner stiffening ring element 27 and this is displaced on the central element 11 until the plurality of axial support elements 34 are supported on the bearing support wall 13 .
  • housing 14 of the stator 4 and a bulkhead 37 perpendicular to the housing 14 and the outer stiffening ring member 28 define an outer volume suitable for receiving the outer end turns 38, as illustrated in FIG.
  • assembly is carried out in a similar manner by axial displacement of the outer stiffening ring element 28 in relation to the housing 14.
  • the structure of the windings 19 in FIG. 2 shows that the windings 19 are arranged in such a way that the parts 39 of the windings 19 run between the outer winding overhang 38 and the inner winding overhang 33 in the winding grooves 18 .
  • Figure 3 shows a side view of an inner stiffening ring member 27 having a plurality of axially projecting support members 34 prior to assembly.
  • the inner stiffening ring member 27 has a coned ring portion 40.
  • the coned ring portion 40 deforms under an axial force after assembly, so that the coned ring portion 40 transforms into a planar ring portion 41, as shown in FIG.
  • the conical ring area 40 and correspondingly the entire inner stiffening ring element 27 undergoes a radial enlargement, so that a radial compressive stress on the components lying radially on the inner stiffening ring element 27, in particular on the stator teeth, is realized or increased.
  • FIG. 4 is a perspective view of the inner stiffening ring 27 showing the ring structure of the inner stiffening ring 27.
  • FIG. 4 the conical ring area 40 mentioned in relation to FIG. 3 has already been converted into a planar ring area 41, so that the inner stiffening ring 27 shown here has a shape in the final assembly state.
  • stator and the method for producing the stator and the electric axial flux machine equipped with it combine cost-effective production with a high power density and torque density and a long service life of the electric axial flux machine.
  • Inner winding head 33 Axial projecting support element 34

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

L'invention concerne un stator (4) destiné à une machine électrique à flux axial (1), un procédé de fabrication du stator (4) et une machine électrique à flux axial (1). Le stator (4) comprend un noyau de stator (10) avec de multiples dents de stator (16) qui sont disposées sur la circonférence, font saillie axialement et sont mises en boucle par au moins un enroulement (19) d'au moins un élément conducteur électrique dans de multiples boucles (20) ; un élément central radialement interne (11) ; un boîtier (14) qui entoure l'extérieur radial (22) des dents de stator (16) ; et un élément annulaire de renforcement respectif (27, 28) sur le côté (25) des dents de stator (16) opposé au côté (24) de la fixation axiale des dents de stator (16) radialement entre l'élément central (11) et les dents de stator (16) et/ou radialement entre le boîtier (14) et les dents de stator (16) et axialement adjacent à chaque tête d'enroulement (33, 38), chaque élément annulaire de renforcement exerçant une contrainte de compression sur les dents de stator (16) dans la direction radiale, produisant ainsi une liaison par ajustement de force avec les dents de stator (16), et/ou étant relié aux dents de stator (16) au moyen d'une liaison adhésive (30). Le stator selon l'invention, le procédé de fabrication du stator, et la machine électrique à flux axial équipée dudit stator combinent un procédé de fabrication peu coûteux avec une densité de puissance et une densité de couple élevées ainsi qu'une longue durée de vie de la machine électrique à flux axial.
PCT/DE2021/100785 2020-10-07 2021-09-28 Stator pour machine électrique à flux axial, procédé de fabrication d'un stator, et machine électrique à flux axial dotée d'un stator WO2022073547A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020126311.2 2020-10-07
DE102020126311 2020-10-07

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WO2022073547A1 true WO2022073547A1 (fr) 2022-04-14

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WO (1) WO2022073547A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022111318A1 (de) 2022-05-06 2023-11-09 Schaeffler Technologies AG & Co. KG Wälzlageranordnung, Axialflussmaschine und Verfahren zur Montage einer Wälzlageranordnung in einer Axialflussmaschine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022117272A1 (de) 2022-07-12 2024-01-18 Bayerische Motoren Werke Aktiengesellschaft Stator für eine elektrische Axialflussmaschine, Verfahren zum Herstellen eines solchen Stators und elektrische Axialflussmaschine mit einem solchen Stator
DE102022004793A1 (de) 2022-12-19 2024-06-20 Mercedes-Benz Group AG Befestigungsanordnung eines Blechpakets eines Stators an einem Gehäuse einer Axialflussmaschine, insbesondere für ein Kraftfahrzeug, Axialflussmaschine sowie Kraftfahrzeug

Citations (5)

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Publication number Priority date Publication date Assignee Title
JP2008131784A (ja) * 2006-11-22 2008-06-05 Daikin Ind Ltd モータ
US20110309694A1 (en) 2009-02-13 2011-12-22 Isis Innovation Ltd Electric machine- flux
EP2787610A1 (fr) 2013-04-05 2014-10-08 F. Boccadoro SA Procédé et dispositif de fabrication de stators et de rotors pour des moteurs axiaux
US20180013323A1 (en) * 2015-01-16 2018-01-11 Yasa Limited Axial Flux Machine
WO2020136004A1 (fr) * 2018-12-24 2020-07-02 Joval Nv Machine à flux axial et son procédé de fabrication

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008131784A (ja) * 2006-11-22 2008-06-05 Daikin Ind Ltd モータ
US20110309694A1 (en) 2009-02-13 2011-12-22 Isis Innovation Ltd Electric machine- flux
EP2787610A1 (fr) 2013-04-05 2014-10-08 F. Boccadoro SA Procédé et dispositif de fabrication de stators et de rotors pour des moteurs axiaux
US20180013323A1 (en) * 2015-01-16 2018-01-11 Yasa Limited Axial Flux Machine
WO2020136004A1 (fr) * 2018-12-24 2020-07-02 Joval Nv Machine à flux axial et son procédé de fabrication

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022111318A1 (de) 2022-05-06 2023-11-09 Schaeffler Technologies AG & Co. KG Wälzlageranordnung, Axialflussmaschine und Verfahren zur Montage einer Wälzlageranordnung in einer Axialflussmaschine

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