EP3670926B1 - Roue de compresseur destinée à la compression d'un milieu fluide - Google Patents

Roue de compresseur destinée à la compression d'un milieu fluide Download PDF

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Publication number
EP3670926B1
EP3670926B1 EP19203892.5A EP19203892A EP3670926B1 EP 3670926 B1 EP3670926 B1 EP 3670926B1 EP 19203892 A EP19203892 A EP 19203892A EP 3670926 B1 EP3670926 B1 EP 3670926B1
Authority
EP
European Patent Office
Prior art keywords
compressor
compressor wheel
blade elements
rotor
connector 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.)
Active
Application number
EP19203892.5A
Other languages
German (de)
English (en)
Other versions
EP3670926A1 (fr
Inventor
Michael Baeuerle
Rene Schepp
Joerg Mayer
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP3670926A1 publication Critical patent/EP3670926A1/fr
Application granted granted Critical
Publication of EP3670926B1 publication Critical patent/EP3670926B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/284—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for compressors
    • 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
    • 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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4213—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps suction ports
    • 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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid 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
    • F04D25/024—Units comprising pumps and their driving means the driving means being assisted by a power recovery turbine

Definitions

  • turbochargers in particular exhaust gas turbochargers, are used in particular in motor vehicle construction to increase the air filling in the cylinders of an internal combustion engine in order to increase the power of the internal combustion engine.
  • Exhaust gas turbochargers which are driven by the exhaust gas flow of the internal combustion engine, are often used for this purpose.
  • a compressor according to claim 1 is therefore proposed, which is set up in particular to increase the efficiency of the compressor in order to improve efficiency of the turbocharger and to achieve an improvement in the efficiency of the overall system.
  • a compressor wheel of a compressor according to the invention for compressing a fluid medium, in particular for an exhaust gas turbocharger of an internal combustion engine comprises a plurality of blade elements.
  • the compressor wheel includes at least two blade elements.
  • the compressor wheel includes six blade elements.
  • the blade elements, for example turbine blades, are arranged in particular radially and/or spirally around an axis of rotation of the compressor wheel.
  • the compressor wheel also includes a connection element arranged on the inflow side in front of the blade elements, the connection element having an outer shape that tapers at least in sections along the axis of rotation in the direction of the blade elements.
  • a “compressor wheel” is basically to be understood as meaning any element that is set up to compress a fluid medium by means of a rotational movement.
  • the compressor wheel can be designed as an impeller and/or compressor wheel.
  • the compressor wheel can be designed as a radial compressor wheel.
  • the compressor wheel can be designed in such a way that it rotates about the axis of rotation and in this way compresses, in particular compresses, the fluid medium, for example air.
  • the compressor wheel can have a shape and/or a geometry that causes compression of the fluid medium when the compressor wheel rotates, in particular about the axis of rotation of the compressor wheel.
  • energy can be added to the fluid medium, in particular to a flowing fluid, by means of the compressor wheel.
  • the compressor wheel can be set up to add energy to the fluid medium through the rotation of the compressor wheel according to the laws of fluid mechanics.
  • an “axis of rotation of the compressor wheel” is to be understood in principle as any axis, in particular an axis of rotation, about which the compressor wheel rotates.
  • the axis of rotation of the compressor wheel can, in particular, be a straight line through the correspond to the compressor wheel.
  • the axis of rotation of the compressor wheel can, for example, be a straight line through a center of gravity, in particular through a center of mass, of the compressor wheel.
  • a “fluid medium” is to be understood in principle as any liquid and/or any gas.
  • the fluid medium can be air, in particular the gas mixture of the earth's atmosphere, and can contain oxygen, for example.
  • the fluid medium can be sucked in by rotating the compressor wheel.
  • the fluid medium can be caused to flow, for example, by means of the rotation of the compressor wheel.
  • the fluid medium can flow in one flow direction as a result of the rotation of the compressor wheel.
  • the fluid medium can be supplied to the compressor wheel in the direction of flow.
  • the direction of flow of the fluid medium can, for example, run essentially parallel to the axis of rotation.
  • blade elements is to be understood in principle as meaning blade leaves and/or split blades of a compressor wheel.
  • the compressor wheel can have alternatingly arranged blades and split blades. A number of airfoils can thus correspond to a number of split blades.
  • the compressor wheel can have a plurality of blade elements, a “plural number of blade elements” being understood in the context of the present invention to mean at least two blade elements distributed uniformly over a circumference of the compressor wheel.
  • the compressor wheel can have at least four blade elements.
  • the compressor wheel may include at least six blade elements.
  • the compressor wheel can have at least eight blade elements, in particular at least four blade leaves and at least four split blades.
  • the compressor wheel can preferably have at least twelve blade elements, for example at least six blade leaves and at least six split blades.
  • connection element is to be understood in principle as any element of the compressor wheel which is arranged on the inflow side in front of the blade elements of the compressor wheel.
  • the connecting element can, for example, along the axis of rotation be arranged immediately in front of the blade elements of the compressor wheel.
  • the connection element can influence the flow of the fluid medium towards the blade elements.
  • the connection element can have an outer shape with a geometry that changes in sections.
  • the term “inflow side” is to be understood as that side of any element which the fluid medium first flows over and/or around.
  • the fluid medium can first flow around the connection element arranged on the inflow side in front of the blade elements, before the fluid medium can flow around the blade elements.
  • an “outer shape of the connection element” is to be understood as meaning a geometry or shape of a skin or surface of the connection element.
  • the outer shape can taper at least in sections along the axis of rotation in the direction of the blade elements.
  • the outer shape can have a continuous taper at least at one point or at least one section along the axis of rotation in the direction of the blade elements.
  • the outer shape can continuously narrow along the axis of rotation or contract towards the axis of rotation.
  • the outer shape can, for example, be tapered in the direction of the blade elements along the axis of rotation, in particular can have a constriction.
  • the outer shape can taper or narrow towards a waist line.
  • the outer shape can taper, for example, down to a waist line and widen or enlarge after the waist line is exceeded.
  • the outer shape can have, for example, at least two sections separated by the waistline.
  • the outer shape of the connection element can have at least two sections, in which case in particular a tapering section of the outer shape can change into a widening or enlarging section, for example.
  • the widening section of the outer shape can connect to the narrowing section of the outer shape, for example similar to an hourglass.
  • the connecting element can be designed to be rotationally symmetrical.
  • the connecting element can be designed to be rotationally symmetrical with respect to the axis of rotation of the compressor wheel.
  • connection element can, for example, also have an at least partially non-rotationally symmetrical shape or geometry, in particular at least partially non-rotationally symmetrical design.
  • at least part of the blade elements of the compressor wheel, in particular outlets of the blade elements, for example the geometry of the blade elements, for example outlets of a blade element geometry can protrude into a connecting element area.
  • a geometry of the blade elements can be partially continued in the geometry of the connecting element.
  • the blade elements can be arranged, for example, radially with respect to the axis of rotation of the compressor wheel around a functional element.
  • the blade elements and the functional element can also be made in one piece, for example.
  • the functional element can include, for example, the back of a wheel.
  • the functional element can have a plate-shaped area that closes off the compressor wheel in the axial direction.
  • the functional element can be designed in such a way that the fluid medium, in particular the fluid flowing towards the compressor wheel, is deflected radially outwards.
  • the compressor wheel may have at least one bore along the axis of rotation of the compressor wheel.
  • the bore can penetrate the connecting element and the functional element.
  • a diameter of the bore along the axis of rotation can vary, for example.
  • the diameter of the bore can have at least two different diameters in the direction of the axis of rotation.
  • the bore can have at least two sections, it being possible for the sections to have different diameters from one another.
  • the hole within the connecting element can have a larger diameter, either entirely or partially, than the hole within the functional element.
  • connection element can be designed in such a way that a transition from the connection element to the functional element is continuous.
  • the external shape of the connection element can be converted or transition continuously or continuously into an external shape of the functional element.
  • the transition from the connection element to the functional element can be smooth, in particular without a kink.
  • the connecting element and the functional element can be designed in one piece, for example.
  • the connecting element and the functional element can be made from the same blank or semi-finished product.
  • the connection element and the functional element can be manufactured together from a blank, e.g. milled.
  • the connection element and the functional element can, for example, be 3D milled, e.g. can be manufactured by 3D milling.
  • the outer shape of the functional element can merge into the outer shape of the connection element.
  • the outer shape of the functional element for example a basic contour without a blade area, can be continued in the outer shape of the connecting element.
  • a constant course of an outer shape for example an inner air-guiding geometry, can be achieved beyond a region of the axial fastening.
  • connection element comprises a collar arranged on the inflow side.
  • the connecting element can have a shape or geometry on the inflow side which has a collar shape, for example a collar-shaped opening.
  • the collar has an annular face.
  • the end face of the collar can, for example, be an annular end face directed counter to the direction of flow of the fluid medium, for example an end face oriented essentially orthogonally to the direction of flow.
  • the end face of the collar can, for example, taper to a point, so that the annular end face of the collar has an annular edge directed counter to the direction of flow of the fluid medium.
  • a compressor in particular for an exhaust gas turbocharger, is proposed.
  • the compressor comprises a housing and a shaft which is rotatably mounted in the housing and on which at least one compressor wheel is arranged in a rotationally fixed manner.
  • the housing can in particular comprise a flow housing which directs or guides the fluid medium, in particular predetermines a direction of flow of the fluid medium.
  • the compressor wheel is in particular a compressor wheel as already described above or as explained in more detail below, so that reference is made to the disclosure of the compressor wheel with regard to the definitions.
  • a “compressor” is basically to be understood as meaning any device that is set up to supply mechanical work to the fluid medium, in particular to increase a density of the fluid medium through mechanical work.
  • the compressor can be set up in particular to supply the fluid medium to the compressor wheel.
  • the compressor can be designed in such a way that the fluid medium flows essentially axially, in particular in the direction of the axis of rotation of the compressor wheel, to the compressor wheel.
  • the compressor wheel can be designed in such a way that the fluid flowing essentially axially to the compressor wheel is deflected by the compressor wheel first in the direction of the axis of rotation, in particular inwards, and then radially, i.e. outwards.
  • the fluid can be condensed or compressed, for example, by the outwardly deflected flow direction.
  • “rotatably connected” is to be understood as meaning any connection of at least two elements which results in both elements being able to rotate only together about at least one axis.
  • the compressor wheel arranged in a rotationally fixed manner on the shaft is connected to the shaft in such a way that rotation of the shaft causes rotation of the compressor wheel and vice versa.
  • the compressor wheel which is arranged in a rotationally fixed manner on the shaft, and the shaft can, for example, only rotate together.
  • the compressor wheel can be attached, in particular mounted, on the shaft in a rotationally fixed manner, for example by means of a shaft-hub connection.
  • the compressor wheel can be designed as a hub, for example.
  • the compressor wheel and the shaft can be made in one piece, for example.
  • the compressor wheel can also be arranged on the shaft in a rotationally fixed manner in that the compressor wheel and the shaft are designed in one piece.
  • the compressor also has an electric drive machine, the electric drive machine comprising at least one rotor and one stator, the rotor being connected to the shaft in a torque-proof manner.
  • the rotor, the shaft and the compressor wheel can be rotated together about the axis of rotation of the compressor wheel.
  • the electric drive machine is arranged upstream of the compressor wheel.
  • the stator of the prime mover includes a stator housing, with the rotor being arranged inside the stator housing.
  • the stator housing can enclose the rotor in the form of a circular ring.
  • the stator housing can have an opening on the outflow side, in particular in the direction of the compressor wheel, with a diameter of the opening being able to correspond to at least an outer diameter of the rotor.
  • the stator housing can have an annular edge.
  • the opening of the stator housing arranged on the outflow side can be formed in such a way that the stator housing forms the annular edge.
  • the stator housing can be of cylindrical design.
  • an outer shape of the stator can be configured cylindrically, in particular having a constant radius.
  • a diameter of a collar of the compressor wheel in particular a connection diameter, can, for example, match a diameter of the stator housing, in particular a diameter of the annular border, correspond.
  • tolerances and/or a positioning play can be taken into account when choosing the diameter.
  • the flow housing provided in step a) is, for example, any fluid guide, in particular air guide, which is set up to guide the fluid medium to the compressor wheel.
  • the flow housing e.g. the air duct, can be designed, for example, in the form of a tube.
  • the steps of the method of making a compressor may be performed in the order presented.
  • the rotor can be inserted into the stator housing in step c) in a state in which the rotor is already mounted on the shaft.
  • the compressor according to the invention and the method for producing a compressor have numerous advantages compared to the devices and methods known from the prior art. For example, an efficiency of the proposed devices can be higher compared to conventional devices.
  • the tapering outer shape for example the tapering geometry, can be helpful in guiding, in particular guiding, an air mass flow with lower losses, in particular as few as possible, in the compressor wheel. So can by tapering
  • connection element for example, an integration of a clinging area in the shape of the compressor wheel can be made possible, whereby in particular a streamlined overall course can be realized. In particular, this can lead to improved efficiency compared to devices and methods known from the prior art.
  • turbulence and dead areas in the flow housing can be reduced and the aerodynamics can be positively influenced via the electric drive to the exhaust gas turbocharger.
  • a smooth transition e.g. from the stator to the compressor wheel, can bring about an improvement in aerodynamics and a reduction in turbulence and dead zones in the flow of the fluid compared to known devices.
  • the outer shape of the functional element can merge into the outer shape of the connection element.
  • the outer shape of the functional element for example a basic contour without a blade area, can be continued in the outer shape of the connecting element.
  • a constant progression of the outer shape for example an inner air-guiding geometry, can be achieved beyond a region of the axial attachment. In particular, this can lead to a reduction in potential turbulence and thus to improved aerodynamic behavior compared to known devices, in particular improved efficiency, of the compressor and thus, for example, also of the turbocharger with electrical support.
  • FIG 1 shows an exemplary embodiment of a compressor 110, in particular an exhaust gas turbocharger of an internal combustion engine, with a compressor wheel 112 in a side view.
  • the compressor 110 comprises a housing 114, for example a flow housing, and a shaft 116 rotatably mounted in the housing 114, the rotatable mounting in figure 1 is not shown.
  • At least the compressor wheel 112 is arranged on the shaft 116 in a rotationally fixed manner.
  • FIG 2 a sectional view of a detail from an exemplary embodiment of a compressor 110 with a compressor wheel 112 is shown.
  • An example flow direction of a fluid medium is in figure 2 marked by arrows.
  • the compressor 110 can have an electric drive machine 118 with a rotor 120 and a stator 122 which is arranged in front of the compressor wheel 112 on the inflow side.
  • the rotor 120 can be connected to the shaft 116 in a rotationally fixed manner.
  • the stator 122 may include a stator housing 124 where the rotor 120 may be disposed within the stator housing 124 .
  • the stator housing 124 can have an opening 126 on the outflow side, it being possible for a diameter of the opening 126 to correspond at least to an outer diameter of the rotor 120 .
  • the stator housing 124 can be of cylindrical design on the outflow side.
  • FIG 3 shows a sectional view of an embodiment of a compressor wheel 112 for compressing a fluid medium.
  • That Compressor wheel 112 includes a plurality of blade elements 128, in particular turbine blades.
  • the blade elements 128 can, for example, as in figure 4 shown, may be arranged radially and spirally about an axis of rotation 130 of the compressor wheel 112 .
  • Compressor wheel 112 also includes a connection element 132 arranged upstream of blade elements 128.
  • Connection element 132 has an outer shape 134 that tapers at least in sections along axis of rotation 130 in the direction of blade elements 128.
  • the connecting element 132 can in particular be designed to be rotationally symmetrical.
  • the blade elements 128 can be arranged radially around a functional element 136 with respect to the axis of rotation 130 of the compressor wheel 112 .
  • the functional element 136 can include a wheel back 138, for example.
  • the compressor wheel 112 may have at least one bore 140 along the axis of rotation 130 .
  • the bore 140 can, as in figure 3 shown, the connection element 132 and the functional element 136 penetrate, wherein the diameter of the bore 140 along the axis of rotation 130 can vary.
  • the diameter of the bore 140 within the connecting element 132 can be larger than within the functional element 136.
  • the outer shape 134 of the connecting element 132 can, for example, be designed in such a way that a transition 142 from the connecting element 132 to the functional element 136 is continuous.
  • connection element 132 and the functional element 136 can be made in one piece, as shown in FIG figure 4 illustrated perspective view of an embodiment of the compressor wheel 112 is shown.
  • connection element 132 can comprise a collar 144 arranged on the inflow side.
  • the collar 144 can have a circular end face 146, for example.
  • the collar 144 is, as for example in figure 2 shown, dimensioned such that the circular end face 146 of the collar 144 and the stator housing 124, in particular the outflow side cylindrically configured stator housing 124, are matched to one another, so that an outer diameter of the collar 144 on the end face 146 corresponds to an outer diameter of the stator housing 124 .
  • the outer shape 134 of the connection element 132 which tapers at least in sections, can taper towards at least one waist line 148, for example.
  • the outer shape can narrow, for example to a minimum diameter around the axis of rotation 130 of the compressor wheel 112 .
  • the waist line 148 can be arranged, for example, about the axis of rotation 130 at the level of the connection element 132, as for example in FIG figure 1 shown. Alternatively or additionally, the waist line 148 can also be arranged at the level of the functional element 136, as for example indicated by the dashed line in FIG figure 2 illustrated.
  • FIG 5 shows a flow chart of an embodiment of a method for manufacturing a compressor 110.
  • the method comprises a step a) (identified by reference numeral 150) comprising providing a rotor 120, a shaft 116, a compressor wheel 112, a flow housing 114 with a stator 122 comprising a stator housing 124 Furthermore, the method includes a step b) (identified by reference numeral 152) comprising mounting the compressor wheel 112 and the rotor 120 on the shaft 116.
  • the method also comprises a step c) (identified by reference numeral 154) comprising inserting the rotor 120 into the stator housing 124.
  • the rotor 120 can already be mounted on the shaft 116 when step c) is carried out.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Claims (8)

  1. Compresseur (110) comprenant un boîtier (114) et un arbre (116) monté de manière rotative dans le boîtier (114), sur lequel au moins une roue de compresseur (112) pour la compression d'un milieu fluide, comprenant une pluralité d'éléments formant aube (128), est agencée de manière solidaire en rotation, la roue de compresseur (112) comprenant en outre un élément de raccordement (132) agencé du côté amont avant les éléments formant aube (128), l'élément de raccordement (132) présentant une forme extérieure (134) se rétrécissant au moins par sections le long de l'axe de rotation (130) en direction des éléments formant aube (128), le compresseur (110) présentant en outre une machine d'entraînement électrique (118) agencée du côté amont avant la roue de compresseur (112), la machine d'entraînement électrique (118) présentant au moins un rotor (120) et un stator (122), le rotor (120) étant relié de manière solidaire en rotation à l'arbre (116), le stator (122) comprenant un boîtier de stator (124), le rotor (120) étant agencé à l'intérieur du boîtier de stator (124), caractérisé en ce que l'élément de raccordement (132) comprend une collerette (144) agencée du côté amont, la collerette (144) présentant un côté frontal en forme d'anneau de cercle (146) et le côté frontal en forme d'anneau de cercle (146) de la collerette (144) et le boîtier de stator (124) étant adaptés l'un à l'autre de telle sorte qu'un diamètre extérieur de la collerette (144) sur le côté frontal (146) correspond à un diamètre extérieur du boîtier de stator (124).
  2. Compresseur (110) selon la revendication précédente, dans lequel l'élément de raccordement (132) est conçu avec une symétrie de rotation.
  3. Compresseur (110) selon l'une quelconque des revendications précédentes, dans lequel les éléments formant aube (128) sont agencés radialement par rapport à l'axe de rotation (130) de la roue de compresseur (112) autour d'un élément fonctionnel (136).
  4. Compresseur (110) selon la revendication précédente, dans lequel la roue de compresseur (112) présente au moins un alésage (140) le long de l'axe de rotation (130) de la roue de compresseur (112), l'alésage (140) traversant l'élément de raccordement (132) et l'élément fonctionnel (136).
  5. Compresseur (110) selon la revendication précédente, dans lequel un diamètre de l'alésage (140) varie le long de l'axe de rotation (130), le diamètre de l'alésage (140) étant plus grand à l'intérieur de l'élément de raccordement (132) qu'à l'intérieur de l'élément fonctionnel (136).
  6. Compresseur (110) selon l'une quelconque des trois revendications précédentes, dans lequel la forme extérieure (134) de l'élément de raccordement (132) est conçue de telle sorte qu'une transition (142) de l'élément de raccordement (132) à l'élément fonctionnel (136) est continue.
  7. Compresseur (110) selon l'une quelconque des quatre revendications précédentes, dans lequel l'élément de raccordement (132) et l'élément fonctionnel (136) sont conçus d'un seul tenant.
  8. Compresseur (110) selon l'une quelconque des revendications précédentes, dans lequel le boîtier de stator (124) présente du côté aval une ouverture (126), un diamètre de l'ouverture (126) correspondant au moins à un diamètre extérieur du rotor (120).
EP19203892.5A 2018-12-18 2019-10-17 Roue de compresseur destinée à la compression d'un milieu fluide Active EP3670926B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018222065.4A DE102018222065A1 (de) 2018-12-18 2018-12-18 Kompressorrad zur Kompression eines fluiden Mediums

Publications (2)

Publication Number Publication Date
EP3670926A1 EP3670926A1 (fr) 2020-06-24
EP3670926B1 true EP3670926B1 (fr) 2023-01-25

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DE (1) DE102018222065A1 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101113832B1 (ko) * 2004-07-27 2012-02-29 삼성테크윈 주식회사 터어보압축기
EP2749771B1 (fr) * 2012-12-27 2020-04-22 Thermodyn Dispositif de génération de poussée axiale dynamique pour équilibrer la poussée axiale globale d'une machine rotative radiale
DE102015209365A1 (de) * 2015-05-21 2016-11-24 Bosch Mahle Turbo Systems Gmbh & Co. Kg Abgasturbolader
DE102016222789A1 (de) 2016-11-18 2018-05-24 Bosch Mahle Turbo Systems Gmbh & Co. Kg Laufrad für einen Abgasturbolader
DE102016222928A1 (de) 2016-11-21 2018-05-24 Robert Bosch Gmbh Verfahren zum Betreiben einer Medienspaltmaschine, Medienspaltmaschine, Verdichter
DE102017207532A1 (de) 2017-05-04 2018-11-08 Bosch Mahle Turbo Systems Gmbh & Co. Kg Elektrische Medienspaltmaschine für einen Verdichter und/oder eine Turbine, Turbolader und/oder Turbine

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DE102018222065A1 (de) 2020-06-18

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