EP3877657A1 - Rotor pour un ventilateur - Google Patents

Rotor pour un ventilateur

Info

Publication number
EP3877657A1
EP3877657A1 EP19772690.4A EP19772690A EP3877657A1 EP 3877657 A1 EP3877657 A1 EP 3877657A1 EP 19772690 A EP19772690 A EP 19772690A EP 3877657 A1 EP3877657 A1 EP 3877657A1
Authority
EP
European Patent Office
Prior art keywords
rotor
balancing chamber
rotation
weight
weight element
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.)
Pending
Application number
EP19772690.4A
Other languages
German (de)
English (en)
Inventor
Hendrik Niemann
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.)
Elektrosil GmbH
Original Assignee
Elektrosil GmbH
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 Elektrosil GmbH filed Critical Elektrosil GmbH
Publication of EP3877657A1 publication Critical patent/EP3877657A1/fr
Pending legal-status Critical Current

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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
    • F04D29/329—Details of the hub
    • 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
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/662—Balancing of rotors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/32—Correcting- or balancing-weights or equivalent means for balancing rotating bodies, e.g. vehicle wheels
    • F16F15/36—Correcting- or balancing-weights or equivalent means for balancing rotating bodies, e.g. vehicle wheels operating automatically, i.e. where, for a given amount of unbalance, there is movement of masses until balance is achieved
    • F16F15/363—Correcting- or balancing-weights or equivalent means for balancing rotating bodies, e.g. vehicle wheels operating automatically, i.e. where, for a given amount of unbalance, there is movement of masses until balance is achieved using rolling bodies, e.g. balls free to move in a circumferential direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/32—Correcting- or balancing-weights or equivalent means for balancing rotating bodies, e.g. vehicle wheels
    • F16F15/36—Correcting- or balancing-weights or equivalent means for balancing rotating bodies, e.g. vehicle wheels operating automatically, i.e. where, for a given amount of unbalance, there is movement of masses until balance is achieved
    • F16F15/366—Correcting- or balancing-weights or equivalent means for balancing rotating bodies, e.g. vehicle wheels operating automatically, i.e. where, for a given amount of unbalance, there is movement of masses until balance is achieved using fluid or powder means, i.e. non-discrete material
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M1/00—Testing static or dynamic balance of machines or structures
    • G01M1/30—Compensating imbalance
    • G01M1/36—Compensating imbalance by adjusting position of masses built-in the body to be tested
    • G01M1/365—Compensating imbalance by adjusting position of masses built-in the body to be tested using balancing liquid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/32—Correcting- or balancing-weights or equivalent means for balancing rotating bodies, e.g. vehicle wheels

Definitions

  • the invention relates to a rotor for a fan, which comprises a carrier element and a plurality of blades, the blades being arranged on the carrier element and the rotor being rotatable about an axis of rotation.
  • the invention relates to a method for reducing an imbalance of a rotor for a fan.
  • the object of the present invention is to improve a rotor for a fan and a method for reducing an imbalance of a rotor in such a way that an imbalance of the rotor is automatically reduced.
  • a rotor for a fan which has a carrier element and a large number of blades.
  • the blades are arranged on the carrier element, in particular fastened to the latter, the rotor being rotatable about an axis of rotation.
  • the balancing chamber is preferably arranged concentrically to the axis of rotation.
  • the rotor is arranged rotatably about its axis of rotation.
  • the rotor can be arranged, preferably arranged, on a drive shaft of an electric drive motor in a rotationally fixed manner.
  • the rotor is an impeller, that is to say preferably a rotor, which is enclosed by an annular or tubular housing.
  • the rotor advantageously has an imbalance.
  • the rotor is designed for a fan, the fan serving in particular for cooling electronics in the automotive sector.
  • the carrier element has at least one balancing chamber for receiving at least one weight element.
  • the balancing chamber extends in the circumferential direction and has at most one interruption in the circumferential direction, so that the balancing chamber allows at least substantially free movement of the at least one weight element in the circumferential direction and the at least one weight element is arranged in such a way during at least a first rotation of the rotor about the axis of rotation, that an imbalance of the rotor is reduced automatically.
  • reducing an unbalance should in particular be understood to mean minimizing the unbalance of the rotor. This can preferably be understood to mean that the unbalance is balanced, that is to say completely compensated.
  • the at most one interruption of the balancing chamber is in particular formed by a partition wall, the partition wall (except for its thickness) is preferably defined by a plane which is defined by the radial direction at its position and by the direction which is defined by the axis of rotation of the rotor , certainly. Because the balancing chamber has at most one interruption, the at least one weight element can move substantially freely within the balancing chamber in the circumferential direction. At least during a first rotation of the rotor about the axis of rotation, the at least one weight element can be arranged such that an unbalance of the rotor is automatically reduced.
  • the balancing room defines, in particular, a career that is continuous except for at most one interruption, in other words lane, for the at least one Weight element.
  • the balancing room is therefore preferably not segmented into different areas.
  • the balancing room is designed as a single coherent room.
  • the balancing chamber is preferably designed such that the at least one weight element introduced into the balancing chamber is arranged during at least a first rotation of the rotor about the axis of rotation such that an unbalance of the rotor is automatically reduced.
  • the rotor comprises the at least one weight element.
  • the rotor comprises the at least one weight element.
  • it is exactly one weight element or several weight elements.
  • independent reduction of the unbalance is understood to mean that the unbalance is reduced without external intervention. To reduce the unbalance, there is therefore no need for a measuring method to determine where balancing weights have to be arranged. Furthermore, the arrangement of these balancing weights is accurate not necessary at the predetermined point, since the weight elements arrange themselves in a compensatory manner, in other words by themselves.
  • the first rotation is particularly suitable for arranging the at least one weight element accordingly to reduce the unbalance.
  • the first rotation is preferably defined by the fact that the rotation speed is at least 100 rpm, preferably at least 250 rpm, preferably at least 500 rpm, preferably at least 750 rpm, preferably at least 1,000 rpm.
  • rpm preferably at least 1,500 r / min, preferably at least 2,000 r / min, preferably at least 2,500 r / min, preferably at least 3,000 r / min, preferably at least 3,500 r / min, preferably at least 4,500 r / min, preferably at least 5,000 rpm and / or at most 500 rpm, preferably at most 750 rpm, preferably at most 1,000 rpm, preferably at most 1,500 rpm, preferably at most 2,000 rpm, preferably at most 2,500 rpm, preferably at most 3,000 rpm, preferably at most 3,500 rpm, preferably at most 4,000 rpm, preferably at most 4,500 rpm, preferably at most 5,000 rpm, preferably at most 5,500 rpm, preferably at most 6,500 rpm, preferably at most 7,000 rpm
  • a certain rotational speed is therefore preferably required so that the at least one weight element assumes a stable position within the balancing
  • the at least one weight element is arranged such that an imbalance of the rotor is automatically reduced.
  • weight element is in particular compensation elements for reducing the imbalance, which, due to the centrifugal forces generated at least by the first rotation and the vibrations thereby excited due to the imbalance, position themselves compensatively in order to independently reduce the imbalance of the rotor.
  • the balancing chamber advantageously has no interruption in the circumferential direction, so that the balancing chamber allows the at least one weight element to move freely in the circumferential direction. In this way, the balancing room extends in particular continuously, without any interruption.
  • the balancing chamber is designed to be closed on both sides in the radial direction, the balancing chamber being designed to be closed on at least one side in the direction of the axis of rotation.
  • the balancing chamber is designed to be closed on at least one side in the direction of the axis of rotation, wherein it is designed to be closable on the other side, for example by a cover.
  • the rotor comprises a cover for closing the balancing chamber.
  • the balancing chamber can have a width that is at most 4 mm, preferably at most 3 mm, particularly preferably at most 2.5 mm and / or at least 1 mm, and / or preferably at least 1.5 mm, particularly preferably at least 2 mm.
  • the balancing chamber has a width of 2.1 mm.
  • the width of the balancing chamber is defined in particular in the radial direction and can be designed to be constant throughout. In particular, the width extends between the inner surfaces of the two boundaries of the balancing chamber in the radial direction.
  • the balancing chamber is advantageously designed as an annular cavity, the balancing chamber preferably having a U-shaped cross section in a radial section. In other words, the balancing chamber is designed as an annular space. In particular, the balancing chamber has a U-shaped cross section in each radial section.
  • the balancing chamber can advantageously be designed as a circular cylindrical cavity.
  • the balancing chamber is preferably arranged on a radially outer region of the carrier element.
  • a boundary of the balancing chamber in the radially outer direction a boundary being understood to mean in particular a wall which form the radially outer surface of the carrier element.
  • the rotor preferably has exactly one balancing chamber.
  • the rotor can comprise a plurality of balancing spaces, which can preferably be arranged adjacent in the radial direction and / or in the direction of the axis of rotation, so that, for example, a delimitation of the balancing space in the radial and / or in the direction of the axis of rotation likewise forms a delimitation of the adjacent balancing space.
  • the balancing chamber and the carrier element of the rotor are preferably formed from the same material, in particular from the same plastic.
  • the balancing chamber and the carrier element can in particular be formed in one piece.
  • the at least one weight element can be a liquid, for example water or oil.
  • the weight element can be a disperse system which consists of at least two components.
  • the weight element can be a gel. It can also be a dispersion of two liquids, that is to say an emulsion.
  • the at least one weight element can be a rolling element, in particular a cylinder and / or a ball.
  • the balancing chamber can accommodate several weight elements, which are preferably all of the same design.
  • the weight elements can be designed differently with regard to their size and / or weight.
  • the weight elements are formed by rolling elements.
  • some weight elements can represent rolling elements, while another weight element forms a liquid. Weight elements can thus be formed in liquid by rolling bodies.
  • the at least one weight element can also be a hardenable mass.
  • the curable mass is characterized in particular by the fact that after hardening, i.e. after a certain time has passed, in particular at least two hours, preferably at least three hours, particularly preferably at least four hours, and / or after exposure to a certain temperature, preferably a temperature of at least 50 ° C., particularly preferably at least 60 ° C., particularly preferably at least 70 ° C and / or at most 100 ° C, particularly preferably at most 90 ° C, most preferably at most 85 ° C, solidified.
  • the at least one weight element assumes a first position during at least a first rotation of the rotor about the axis of rotation, which ensures that the imbalance of the rotor is automatically reduced.
  • the weight element can be designed in such a way that, even when the rotor is at a standstill, it remains in the first position, in other words it remains permanently in the first position. This is particularly the case if the at least one weight element is a hardenable mass. In such a case, the weight element serves to independently reduce the imbalance of the rotor and permanently after the first rotation.
  • the position of the weight element can change again when the rotor is at a standstill, so that the at least one weight element is then in a second position that deviates from the first position. As soon as the rotor is brought into rotation again, in particular a rotation described above, the at least one weight element again assumes the first position.
  • the at least one weight element preferably has a weight, this weight corresponding to 0.2% to 5%, preferably 0.5% to 4%, particularly preferably 1% to 3%, particularly preferably 2%, of the rotor.
  • the combined weight of all weight elements corresponds to 0.2% to 5%, preferably 0.5% up to 4%, particularly preferably 1% to 3%, particularly preferably 2%, of the entire rotor.
  • the weight of the entire rotor includes in particular all of the magnets of the rotor.
  • the total weight of the rotor can also include the weight of the weight elements.
  • the invention relates to a fan comprising a rotor described above, the fan being used to cool electronics in the automotive field.
  • the fan can be integrated, for example, in an automobile, in particular in a seat of the automobile or in an area comprising a fitting and / or a console.
  • the invention comprises a method for reducing an imbalance of a rotor for a fan, the method using a rotor according to one of claims 1 to 13.
  • the method comprises the introduction of at least one weight element into a balancing chamber, the method comprising a first rotation of the rotor about the axis of rotation, so that the at least one weight element is arranged in such a way that an unbalance of the rotor is automatically reduced.
  • the method thus serves to independently reduce the unbalance.
  • the method does not include a measuring method to determine at which point the at least one weight element must be arranged in order to reduce an imbalance of the rotor.
  • the method furthermore does not include any external intervention in order to arrange the weight element in such a way that the imbalance of the rotor is reduced.
  • the method can further include closing the balancing chamber in at least one direction, preferably in the direction of the axis of rotation of the rotor.
  • rotating the rotor means in particular that the rotor is brought into a rotation as described above, so that the at least one weight element is positioned in such a way that an unbalance of the rotor is reduced independently.
  • the at least one weight element is advantageously arranged at least during the first rotation of the rotor, in particular with each such rotation of the To a first position which is designed to independently reduce the imbalance of the rotor, the at least one weight element preferably being arranged in a second position when the rotor is at a standstill, which deviates from the first position. As soon as the rotor is again brought into a rotation corresponding to the first rotation, the weight element is arranged again in a first position.
  • the method can thus in particular involve bringing the rotor to a standstill, so that the at least one weight element is arranged in a second position that differs from the first position, and / or rotating the rotor again about the axis of rotation so that the at least one weight element again arranged in such a way that an unbalance of the rotor is reduced.
  • the method can be used to repeatedly reduce the imbalance of the rotor when producing a rotation of the rotor as described above.
  • the weight element can be a hardenable mass, the method comprising hardening the hardenable mass so that the at least one weight element remains in the first position when the rotor is at a standstill, in particular permanently.
  • Hardening primarily comprises the elapse of a certain time, in particular at least two hours, preferably at least three hours, particularly preferably at least four hours, and / or the action of a certain temperature, preferably a temperature of at least 50 ° C., particularly preferably at least 60 ° C, particularly preferably at least 70 ° C and / or at most 100 ° C, particularly preferably at most 90 ° C, most preferably at most 85 ° C.
  • the position of the at least one weight element after hardening therefore does not change again when the rotor is at a standstill.
  • the rotor is thus permanently balanced, so that the method can be a method for independent one-time balancing of an imbalance of the rotor. The method can thus serve to reduce the unbalance once and for all.
  • Figure 1 is a view of a radial section of a rotor according to the invention
  • Figure 2 shows a cross section of a rotor according to Figure 1 along the section line A-A;
  • FIG. 3 shows a cross section of a further rotor according to the invention
  • FIG. 4 shows a further cross section of the rotor according to the invention from FIG. 3;
  • Figure 5 shows a cross section of a further rotor according to the invention;
  • FIG. 6 shows a further cross section of the rotor according to the invention from FIG. 5; 7 shows a cross section of a further rotor according to the invention and FIG. 8 shows a process diagram of a method according to the invention.
  • FIG. 1 shows a radial section of a rotor (10) according to the invention, which has a carrier element (11) and airfoils (14), the airfoils (14) on the carrier element (11), specifically on a radially outer region (12) of the carrier element ( 11) are attached.
  • the rotor (10) is arranged such that it can rotate about an axis of rotation (15).
  • the rotor (10) is firmly connected to the shaft (28) of a drive motor.
  • the rotor (10), in particular the carrier element (11) of the rotor (10), has a balancing chamber (18), which in particular acts as a recess (13) in the carrier element (11) is formed.
  • the balancing chamber (18), which serves to accommodate weight elements (20), extends in the circumferential direction (17).
  • FIG. 2 shows a cross section of the rotor (10) according to the invention from FIG. 1 along the section line A-A.
  • FIG. 2 clearly shows the weight elements (20) accommodated in the balancing chamber (18), which in the present example are designed as rolling bodies (22), namely balls.
  • the balancing chamber (18) has an interruption (24) in the form of a partition (25) in the circumferential direction. Nevertheless, the balancing room (18) is designed as a coherent space.
  • the width (19) of the balancing chamber can also be clearly seen, which is constant throughout, in particular in the circumferential direction.
  • the width (19) is determined in the radial direction (16).
  • FIG. 3 shows a cross section of a further rotor (10) according to the invention, which is essentially identical to the rotor (10) according to FIGS. 1 and 2.
  • the balancing chamber (18) has no interruption (24), so that it extends throughout its circumference in the circumferential direction (17) and thus allows the weight elements (20) to move freely in the circumferential direction (17).
  • FIG. 3 shows the rotor (10) during a rotation in which the weight elements (20) are arranged in such a way that an unbalance of the rotor (10) is automatically reduced.
  • the weight elements (20) are arranged in a first position (26), which is shown in FIG. 3, in which they at least partially compensate for the unbalance.
  • FIG. 4 shows a cross section of the rotor (10) according to the invention according to Figure 3 at a standstill.
  • the weight elements (20) have been arranged in a second position (27), which differs from the first position (26), which is shown in FIG. 3.
  • FIG. 5 shows a cross section of a further rotor (10) according to the invention, which is essentially identical to the rotor of FIG. 1 with the only difference that the rotor (10) has only one weight element (20), the weight element ( 20) is a liquid (21).
  • FIG. 5 shows the liquid (21) during a rotation in which the weight elements (20) are arranged in such a way that an unbalance of the rotor (10) is automatically reduced. They are arranged in a first position (26).
  • FIG. 6 shows a cross section of the rotor (10) of FIG. 5 at a standstill, the liquid (21) having spread due to the lack of centrifugal forces and being arranged in a second position (27) deviating from the first position (26).
  • FIG. 7 shows a cross section of a further rotor according to the invention, which is essentially identical to the rotor of FIG. 1 with the only difference that the weight element (20) is a hardenable mass (23), in particular an adhesive, which is in the balancing room (18) is introduced.
  • the curable mass (23) When the rotor is rotating, the curable mass (23) will be arranged in a first position (26), which is shown in FIG. 7, in which it cures, so that it remains in this position even when the rotor is at a standstill and no deviating therefrom Will take position.
  • FIG. 8 shows a method diagram of a method (100) according to the invention for reducing an imbalance of a rotor (10) for a fan, the method (100) comprising the use of a rotor (10) described above.
  • the method further comprises introducing (101) at least one weight element (20) into a balancing chamber (18) of the rotor (10) and rotating (102) the rotor (10) about the axis of rotation (15) so that the at least one Arrange the weight element (20) in such a way that an unbalance of the rotor (10) is automatically reduced.
  • the at least one weight element (20) is arranged in a first position (27).
  • the method (100) can also include hardening (103) the hardenable mass, so that the at least one weight element (20) can also be used when the rotor () 10) remains in the first position (26).

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

L'invention concerne un rotor (10) pour un ventilateur, lequel comprend un élément de support (11) et une pluralité d'aubes (14), les aubes (14) étant disposées sur l'élément de support (11) et le rotor (10) étant rotatif autour d'un axe de rotation (15). L'élément de support (11) comprend au moins un espace d'équilibrage (18) pour la réception d'au moins un élément de poids (20), l'espace d'équilibrage (18) s'étendant dans la direction circonférentielle (17) et l'espace d'équilibrage (18) comprenant au maximum une interruption (24) dans la direction circonférentielle (17), de telle sorte que l'espace d'équilibrage (18) permet un déplacement essentiellement libre de l'au moins un élément de poids (20) dans la direction circonférentielle (17) et que l'au moins un élément de poids (20) se positionne, au moins lors d'une première rotation du rotor (10) autour de l'axe de rotation (15), de telle façon qu'un déséquilibre du rotor (10) est réduit de manière autonome.
EP19772690.4A 2018-11-05 2019-09-17 Rotor pour un ventilateur Pending EP3877657A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018127555.2A DE102018127555A1 (de) 2018-11-05 2018-11-05 Rotor für einen Lüfter
PCT/EP2019/074854 WO2020094280A1 (fr) 2018-11-05 2019-09-17 Rotor pour un ventilateur

Publications (1)

Publication Number Publication Date
EP3877657A1 true EP3877657A1 (fr) 2021-09-15

Family

ID=67998462

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19772690.4A Pending EP3877657A1 (fr) 2018-11-05 2019-09-17 Rotor pour un ventilateur

Country Status (3)

Country Link
EP (1) EP3877657A1 (fr)
DE (1) DE102018127555A1 (fr)
WO (1) WO2020094280A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111691963B (zh) * 2020-06-09 2021-07-20 安徽江淮汽车集团股份有限公司 汽车风扇动平衡的检测方法及装置
DE102020134121B3 (de) * 2020-12-18 2022-03-24 Dürr Systems Ag Absprühkörper, insbesondere Glockenteller oder Sprühscheibe, Rotationszerstäuber, Beschichtungsroboter, Beschichtungsanlage und zugehörige Betriebsverfahren
US12113410B2 (en) 2021-07-26 2024-10-08 Samsung Electronics Co., Ltd. Motor assembly and method of manufacturing the same

Family Cites Families (9)

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Publication number Priority date Publication date Assignee Title
GB832048A (en) * 1958-03-14 1960-04-06 Georg Schafer Balancing device for rotating bodies
DE2852376A1 (de) * 1978-12-04 1980-07-10 Lothar Kuhrau Vorrichtung zum auswuchten von rotierenden koerpern
CA2069120C (fr) * 1992-05-21 2005-04-26 Anton Gasafi Methode et appareil de correction de balourd
DE19824736A1 (de) * 1998-06-03 1999-12-09 Fhp Motors Gmbh Anordnung zum automatischen Auswuchten eines Rotors eines Elektromotors
DE102004012976B3 (de) * 2004-03-17 2006-03-30 Hilti Ag Automatische Auswuchtvorrichtung
DE102008041858A1 (de) * 2008-09-08 2010-03-11 Robert Bosch Gmbh Motorkühlungsgebläse mit dynamischem Unwuchtausgleich
DE102012002257B4 (de) * 2011-02-25 2021-07-08 Ebm-Papst St. Georgen Gmbh & Co. Kg Rotationskörper und Verfahren zu dessen Auswuchtung
DE102013013650A1 (de) * 2013-08-16 2015-02-19 Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg Drehbar gelagerter Rotationskörper
JP6180400B2 (ja) * 2014-11-18 2017-08-16 ミネベアミツミ株式会社 遠心送風機用羽根車および遠心送風機

Also Published As

Publication number Publication date
DE102018127555A1 (de) 2020-05-07
WO2020094280A1 (fr) 2020-05-14

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