EP2473742B1 - Compresseur radial et procédé de production - Google Patents

Compresseur radial et procédé de production Download PDF

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Publication number
EP2473742B1
EP2473742B1 EP10749770.3A EP10749770A EP2473742B1 EP 2473742 B1 EP2473742 B1 EP 2473742B1 EP 10749770 A EP10749770 A EP 10749770A EP 2473742 B1 EP2473742 B1 EP 2473742B1
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EP
European Patent Office
Prior art keywords
compressor
inlet
inlet insert
radial
fluid
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.)
Not-in-force
Application number
EP10749770.3A
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German (de)
English (en)
Other versions
EP2473742A1 (fr
Inventor
Matthias Alisch
Jens BÖKER
Reiner Landskron
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.)
MAN Energy Solutions SE
Original Assignee
MAN Diesel and Turbo SE
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Filing date
Publication date
Application filed by MAN Diesel and Turbo SE filed Critical MAN Diesel and Turbo SE
Publication of EP2473742A1 publication Critical patent/EP2473742A1/fr
Application granted granted Critical
Publication of EP2473742B1 publication Critical patent/EP2473742B1/fr
Not-in-force 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
    • F04D29/40—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
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/10—Centrifugal pumps for compressing or evacuating
    • 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
    • F04D29/02—Selection of particular materials
    • F04D29/023—Selection of particular materials especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/20—Manufacture essentially without removing material
    • F05D2230/26—Manufacture essentially without removing material by rolling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/50—Building or constructing in particular ways
    • F05D2230/54—Building or constructing in particular ways by sheet metal manufacturing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49229—Prime mover or fluid pump making
    • Y10T29/49236—Fluid pump or compressor making
    • Y10T29/49243—Centrifugal type

Definitions

  • the invention relates to a radial compressor and a method for producing a radial compressor.
  • Single and multi-stage centrifugal compressors in which one or more compressor impellers are arranged on a compressor shaft in a compressor housing of the respective radial compressor, have for flow guidance the compressor impellers of the respective radial compressor layered in an axial direction of the radial compressor layered or successively arranged stator components, which together form a stator form the radial compressor.
  • stator component associated with and optionally surrounding a first impeller stage of a radial compressor is also referred to as an inlet insert and may be e.g. be designed as an inlet heart.
  • a compressor housing of the centrifugal compressor via a formed in the compressor housing fluid inlet, which may have an inlet nozzle, and formed in an inlet insert fluid inlet passage, for example, gaseous fluid in a rotating with a compressor shaft compressor impeller and radially out of the compressor impeller in a Diffuser passage, which introduces the fluid into a formed in a Fluidausleitelement fluid outlet passage (a spiral passage or collection passage for discharging accelerated via a last compressor impeller fluid) introduced.
  • a Fluidausleitelement fluid outlet passage a spiral passage or collection passage for discharging accelerated via a last compressor impeller fluid
  • the fluid is passed to a fluid outlet in the compressor housing, for example provided with a pressure connection, and fed to a subsequent process.
  • a collecting space is defined as a passage which is constant across the circumference of the radial compressor.
  • the inlet insert disposed in the compressor housing is usually manufactured as a casting, wherein the fluid inlet passage is e.g. produced by casting cores.
  • castings have disadvantages in terms of their long delivery times and the models required for the production, which in many cases can not be reused and which significantly increase the manufacturing costs of the castings, and in terms of their possibly fluctuating quality.
  • the quality fluctuations in this case relate in particular to the dimensional accuracy (in particular the dimensional accuracy of the fluid inlet passage) and the material structure, which may be impaired in particular by blowholes in castings. Voids may in turn result in cracks and machining problems, or even the need to discard the entire casting.
  • radial compressors for manufacturers of such compressors are problematic in terms of compliance with the required operating characteristics, such as reliability and reliability, and compliance with the agreed delivery times.
  • the production of such radial compressors for manufacturers can be associated with high cost risks, which can be expressed, for example, in conventional penalties, increased procurement and / or transport costs, etc.
  • such conventional radial compressors problematic in terms of standardization and thus cost-effective optimization of the manufacturing process.
  • the invention has for its object to provide a radial compressor, which has improved operating characteristics over conventional radial compressors and which can be produced with lower cost risks.
  • the invention is further based on the object to provide a method for producing such a radial compressor.
  • a centrifugal compressor comprises a compressor housing, a compressor shaft rotatably mounted in the compressor housing, at least one arranged in the compressor housing on the compressor shaft compressor impeller and in a fluid path in the compressor housing a first impeller stage of the radial compressor associated inlet insert certain extension in a radial direction and an axial direction of the radial compressor.
  • the inlet insert defines a fluid inlet passage upstream of and in the fluid path of a first compressor impeller of the number of compressor impellers, wherein the inlet insert is formed of material having a defined material structure, and wherein the fluid inlet passage is formed as a subsequently introduced spatial discontinuity in a material cohesion of the material structure.
  • Defined material structure in accordance with the invention means that a feedstock feedstock is in a solid state and is expressly not in a melted state, the entirety of any structural irregularities and pattern regularities forming the material structure.
  • the fluid inlet passage is produced in particular in its entirety by separating material particles from, in particular, solid-walled or solid starting material, so that a particle number and a volume of the finished inlet insert are smaller than those of the starting material.
  • spatial interruption or repeal of the substance cohesion of such a defined material structure of the inlet insert can be exclusively by a separation processing, such as cutting, cutting (eg milling, drilling, turning, grinding, etc.), Abtragen (eg spark erosion, laser cutting , Electron beam cutting, flame cutting, etc.), etc.
  • a separation processing such as cutting, cutting (eg milling, drilling, turning, grinding, etc.), Abtragen (eg spark erosion, laser cutting , Electron beam cutting, flame cutting, etc.), etc.
  • CNC C omputer N umerically C ontrolled - Computertianischstead
  • CNC EDM machines CNC EDM machines
  • This can be dispensed with a cost-intensive, lengthy and quality-fluctuating production of the fluid inlet passage by means of casting cores.
  • a radial compressor with an inlet insert produced in accordance with the invention thus always has the desired and therefore improved operating properties as a result of the fluid inlet passage which is always of constant quality or dimensional accuracy.
  • the material of the inlet insert is pressure-formed material, wherein the material structure of the inlet insert is formed as a pressure-formed material structure.
  • pressure-formed material is understood, for example, as forging material, cold-rolling material and hot-rolling material, drawing material, etc. Such materials are available on the market quickly and inexpensively as semi-finished products. Furthermore, pressure-converted materials have a material structure which is improved with respect to air inclusions, since possibly existing air inclusions are forcibly smelted by the pressure forming after a prototyping and thus a more homogeneous material structure is created.
  • the material of the inlet insert is rolled material and in particular metal sheet, wherein the material structure of the inlet insert is formed as a rolled material structure.
  • metal sheets are available on the market in a variety of sheet thicknesses and material qualities quickly and inexpensively.
  • the inlet insert is formed by a plurality of stacked in the axial direction of the radial compressor and interconnected inlet insert parts.
  • the inlet insert parts are welded together, soldered or screwed.
  • suitable connections may be provided to the compressor housing and adjacent internal parts of the radial compressor.
  • the lamination according to the invention or stacking of several inlet insert parts has the advantage that the total extension of the inlet insert in the axial direction of the radial compressor can be distributed to the plurality of thickness dimensions or extensions in the axial direction of the radial compressor of the inlet insert parts.
  • the starting material to be used for the respective inlet inserts is at least in one dimension, namely, preferably in the thickness dimension extending in the axial direction of the radial compressor, not limited by the inlet insert as a whole restrictions orrobomindestan beauen. This ensures increased flexibility with regard to the basic dimensions of the starting material for the respective inlet insert parts.
  • the problem can easily be solved, for example, that the sheet thickness available on the market is limited.
  • the thickness dimension of the inlet insert exceeds, for example, the sheet thickness available on the market, simply several sheets (inlet inserts) are stacked and joined together as described above.
  • the geometric shape for the fluid inlet passage can be introduced into each sheet individually or into the sheets in the stratified state.
  • the inventive design of the inlet insert from a plurality of inlet insert parts standard inlet insert parts can be defined for certain compressor sizes, so that at least the starting material for these and possibly even finished inlet inserts can be kept in a warehouse.
  • radial compressors according to the invention can have a higher degree of standardization, with which a cost optimization of the manufacturing process can be achieved. Furthermore, it is possible to react quickly and flexibly to customer requirements by keeping the stock of certain inlet parts.
  • the fluid inlet passage of at least two inlet insert parts of the plurality of inlet insert parts is limited.
  • the stacking according to the invention thus makes it possible, if a thickness dimension of the starting material available on the market for the respective inlet insert parts is insufficient to form therein the entire cross section of the fluid inlet passage, distributing the cross section over a plurality of inlet insert parts.
  • those skilled in constructing the fluid inlet passage and the inlet insert, respectively are substantially free of constraint-related limitations and thus can realize an optimal design.
  • fluid inlet passage can be limited by several inlet insert parts both because of their cross-section and due to a possibly existing axial progression factor.
  • a spiral space is formed in an inlet insert part of the plurality of inlet insert parts, wherein the spiral space is formed as a subsequently introduced spatial interruption in the material composition of the material structure.
  • a Fluidausleitelement is integrated into the inlet insert in a simple, space-saving and cost-effective manner. This additionally reduces costs and production costs.
  • Such an embodiment of the invention is particularly suitable for single-stage centrifugal compressors, but is not limited to these.
  • a method of manufacturing a radial compressor comprises at least the following steps: providing a compressor housing, providing a compressor shaft, providing at least one compressor impeller and locating it on the compressor shaft, rotatably supporting the compressor shaft in the compressor housing, providing an inlet insert, such that it has a certain extent in a radial direction and an axial direction of the radial compressor and defines a fluid inlet passage, and arranging the inlet insert in the compressor housing so that the inlet insert in a fluid path in the compressor housing is associated with a first impeller stage of the radial compressor and the fluid inlet passage in the fluid path with a first Compressor impeller of the number of compressor impellers is upstream and leads to this, wherein the fluid inlet passage in particular in their entirety by a Trennbearb in particular from the full in the inlet insert is introduced.
  • a severing operation may include, for example, cutting and / or chipping (e.g., milling, drilling, turning, grinding, etc.) and / or ablation (e.g., spark erosion, laser cutting, electron beam cutting, flame cutting, etc.).
  • cutting and / or chipping e.g., milling, drilling, turning, grinding, etc.
  • ablation e.g., spark erosion, laser cutting, electron beam cutting, flame cutting, etc.
  • a radial compressor produced by means of the method according to the invention with an inlet insert designed in accordance with the invention thus always has the desired and therefore improved operating characteristics due to the fluid inlet passage which is always of constant quality or dimensional accuracy.
  • pressure-molded material is used as starting material for the inlet insert.
  • pressure-formed material for example, forging material, cold rolling and hot rolling, drawing material, etc. understood.
  • Such materials are available on the market quickly and inexpensively as semi-finished products.
  • pressure-converted materials have a material structure which is improved with respect to air inclusions, since possibly existing air inclusions are forcibly smelted by the pressure forming after a prototyping and thus a more homogeneous material structure is created.
  • Rolling material in particular sheet metal, is preferably used as starting material for the inlet insert.
  • metal sheets are available on the market in a variety of sheet thicknesses and material qualities quickly and inexpensively.
  • solid-walled or solid material is used as starting material for the inlet insert.
  • any suitable solid material available on the market can be used, since the fluid inlet passage is only subsequently worked out in its entirety by means of separation processing from the solid.
  • the inlet insert when the inlet insert is provided, a plurality of separate inlet insert parts are stacked and connected to one another such that the inlet insert parts are arranged one after the other in the axial direction of the radial compressor, wherein the inlet insert parts are preferably welded, soldered and / or screwed together.
  • the lamination according to the invention or stacking of several inlet insert parts has the advantage that the total extension of the inlet insert in the axial direction of the radial compressor can be distributed to the plurality of thickness dimensions or extensions in the axial direction of the radial compressor of the inlet insert parts.
  • the starting material to be used for the respective inlet inserts is at least in one dimension, namely, preferably in the thickness dimension extending in the axial direction of the radial compressor, not limited by the inlet insert as a whole restrictions orrobomindestan beauen. This ensures increased flexibility with regard to the basic dimensions of the starting material to be used for the respective inlet insert parts.
  • inlet inserts With the stacking of a plurality of inlet inserts according to the invention, it is possible in a simple manner to achieve e.g. solves the problem that the available on the market sheet thickness is limited. In other words, if the thickness dimension of the inlet insert is e.g. exceeds the plate thickness available on the market, simply several sheets (inlet inserts) stacked and connected together as described above.
  • the geometric shape for the fluid inlet passage can be introduced into each sheet individually or into the sheets in the stratified state.
  • the inventive design of the inlet insert from a plurality of inlet insert parts standard inlet insert parts can be defined for certain compressor sizes, so that at least the starting material for these and possibly even finished inlet inserts can be kept in a warehouse.
  • radial compressors according to the invention can have a higher degree of standardization, with which a cost optimization of the manufacturing process can be achieved. Furthermore, it is possible to react quickly and flexibly to customer requirements by keeping the stock of certain inlet parts.
  • the fluid inlet passage is introduced such that it is delimited by at least two inlet insert parts of the plurality of inlet insert parts.
  • the stacking according to the invention thus makes it possible, if a thickness dimension of the starting material available on the market for the respective inlet insert parts is insufficient to form therein the entire cross section of the fluid inlet passage, distributing the cross section over a plurality of inlet insert parts.
  • those skilled in the design and manufacture of the fluid inlet passage or inlet insert are substantially free of constraint-related limitations, and thus can realize optimal design and manufacturing.
  • fluid inlet passage can be limited by a plurality of inlet insert parts both due to their cross-section and due to an optionally existing axial progression factor.
  • a spiral space is introduced into an inlet insert part of the plurality of inlet insert parts by means of separation processing.
  • a Fluidausleitelement is integrated into the inlet insert in a simple, space-saving and cost-effective manner. This additionally reduces costs and production costs.
  • Such an embodiment of the invention is particularly suitable for single-stage centrifugal compressors, but is not limited to these.
  • a cutting and / or abrading machining is used as the cutting process.
  • processing methods carried out by a CNC machine such as e.g. Milling, spark erosion, laser cutting, electron beam cutting and flame cutting. This allows the geometry of the fluid inlet passage in repeatable quality and high dimensional accuracy reliably produced.
  • these can be bolted together, soldered or welded. If the sheets are screwed together, the screw can also be part of the screwing of the entire stator.
  • the invention not only allows the use of sheets, but also allows the construction of a standard component system.
  • the radial compressor is a single-shaft centrifugal compressor.
  • FIGS. 1 to 3 a radial compressor 1 according to embodiments of the invention described.
  • a radial compressor 1 has a compressor housing 10, a compressor shaft 20 mounted rotatably in the compressor housing 10, at least one compressor impeller 14 arranged in the compressor housing 10 and an inlet insert 12 assigned to a first impeller stage of the radial compressor 1 in a fluid path in the compressor housing 10 which has a certain extent in a radial direction RR and an axial direction AR (see FIG Fig.1 and Figure 3 ) of the radial compressor 1 has.
  • gaseous and / or liquid fluid is introduced into the compressor impeller 14 rotating with the compressor shaft 20 via a fluid inlet 11 formed in the compressor housing 10, which may have an inlet port (not shown) and a fluid inlet passage 13 formed in the inlet insert 12 and radially out of the compressor impeller 14 into a diffuser passage 15 which introduces the fluid into a fluid discharge passage 16a (a spiral passage or collection passage) formed in a fluid discharge member 16.
  • a fluid discharge passage 16a a spiral passage or collection passage
  • the fluid is passed to a fluid outlet 17 provided in the compressor housing 10, for example with a pressure connection (not shown), and supplied to a subsequent process.
  • the fluid inlet passage 13 in the inlet insert 12 in the fluid path is the first (and according to the in Fig.1 embodiment shown single) compressor impeller 14 upstream and leads or extends to this point.
  • the fluid inlet passage 13 is bounded by all three of the inlet insert parts 12a, 12b, 12c, at least by means of a wall section thereof.
  • inlet insert part 12c is formed a fluid outlet passage in the form of a spiral space 121c.
  • the spiral space 121c forms a modification to that in FIG Fig.1
  • the fluid outlet passage, wherein the inlet insert part 12c forms the Fluidausleitelement is particularly suitable for a single-stage radial compressor.
  • the spiral space 121c in the inlet insert part 12c may also be omitted, and instead the fluid outlet passage as in FIG Fig.1 can be arranged shown.
  • the left inlet insert part 12a is designed as a conical disk
  • the inlet insert part 12b in these figures is designed as an inlet heart
  • the inlet insert part 12c which is the right in these figures is formed as a fluid discharge element or spiral casing element.
  • the inlet insert 12 is made of a material having a defined material structure, namely according to embodiments of the invention of pressure-formed material and in particular of rolled sheet metal.
  • the material structure of the inlet insert 12 and the respective inlet insert parts 12a, 12b, 12c, a pressure-formed material structure and here in particular a rolling material structure are regarded as a defined material structure, namely according to embodiments of the invention of pressure-formed material and in particular of rolled sheet metal.
  • the fluid inlet passage 13 and the spiral space 121c are introduced into the solid wall starting material (sheet metal) of the inlet insert 12 and the respective inlet insert parts 12a, 12b, 12c by a cutting process.
  • the fluid inlet passage 13 and the spiral space 121c each represent a subsequently introduced spatial interruption in a material cohesion of the material structure of the inlet insert 12.
  • a method of manufacturing the radial compressor 1 thus comprises the steps of providing the compressor housing 10, providing the compressor shaft 20, providing at least one compressor impeller 14, and placing it on the compressor shaft 20 rotatably supporting the compressor shaft 20 in the compressor housing 10 Providing the inlet insert 12 so that it has a certain extent in the radial direction RR and in the axial direction AR of the radial compressor 1 and defining a fluid inlet passage 13, and arranging the inlet insert 12 in the compressor housing 10 so that the inlet insert 12 in the fluid path in the compressor housing 10 of a first Impeller is associated with the radial compressor 1 and the fluid inlet passage 13 upstream of the first compressor impeller 14 in the fluid path and leads to this, wherein the fluid inlet passage 13 is introduced by a separation processing in the inlet insert 12.
  • the inlet insert 12 as in the Figures 2 and 3 shown from a plurality of stacked in the axial direction AR of the radial compressor 1 Intake insert parts 12a, 12b, 12c are produced, wherein the inlet insert parts 12a, 12b, 12c are welded together, soldered or screwed.
  • the fluid inlet passage 13 may be inserted so that they, as in the Figures 2 and 3 shown, is bounded by all three inlet inserts 12a, 12b, 12c.
  • the geometric shape for the fluid inlet passage 13 may be introduced into each inlet insert part 12a, 12b, 12c individually or into the inlet insert parts 12a, 12b, 12c in the stratified state. Also, the spiral space 121c, if provided, may be introduced into the most downstream inlet insert part 12c before or after the joining or stacking of the inlet insert parts 12a, 12b, 12c by cutting treatment.
  • the fluid inlet passage 13 and, optionally, the spiral space 121c may be e.g. be machined by milling and / or spark erosion from the full starting material or introduced into this.
  • the starting material for the inlet insert 12 or the respective inlet insert parts 12a, 12b, 12c can be pressure-formed material and preferably rolled material, in particular sheet metal.

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Claims (12)

  1. Compresseur radial (1), avec un carter de compresseur (10), un arbre de compresseur (20) logé de manière rotative dans le carter de compresseur (10), au moins un impulseur (14) placé dans le carter de compresseur (10) sur l'arbre de compresseur (20) et un insert d'admission (12) d'extension déterminée dans une direction radiale (RR) et dans une direction axiale (AR) du compresseur radial (1), associé dans un trajet fluidique dans le carter de compresseur (10) à un premier niveau d'impulseur du compresseur radial (1), l'insert d'admission (12) définissant un passage d'entrée du fluide (13} monté en amont d'un premier impulseur (14) dans le trajet fluidique et menant vers celui-ci,
    l'insert d'admission {12) étant formé de matière d'une structure de matière définie et
    le passage d'entrée du fluide (13) étant conçu sous la forme d'une interruption spatiale ménagée ultérieurement dans une cohésion de matières de la structure matérielle, l'insert d'admission (12} étant formé d'une pluralité de pièces d'insert d'admission (12a, 12b, 12c) empilées les unes sur les autres et assemblées les unes aux autres dans la direction axiale (AR) du compresseur radial (1),
    caractérisé en ce que
    dans une pièce d'insert d'admission (12c) de la pluralité de pièces d'insert d'admission (12a, 12b. 12c) est conçu un espace en spirale (121c} et l'espace en spirale (121c) est conçu sous la forme d'une interruption physique ménagée ultérieurement dans une cohésion de matières de la structure matérielle.
  2. Compresseur radial (1) selon la revendication 1, la matière de l'insert d'admission (12) étant une matière façonnée sous pression et la structure matérielle de l'insert d'admission (12) étant conçue sous la forme de structure matérielle façonnée sous pression.
  3. Compresseur radial (1) selon la revendication 1 ou 2, la matière de l'insert d'admission (12) étant une matière laminée et notamment de la tôle métallique et la structure matérielle de l'insert d'admission (12) étant conçue sous la forme d'une structure matérielle laminée.
  4. Compresseur radial (1) selon la revendication 1,
    les pièces de l'insert d'admission (12a, 12b, 12c) étant soudées, brasées ou vissées les unes aux autres.
  5. Compresseur radial (1) selon la revendication 1 ou 4, le passage d'entrée du fluide (13) étant délimité par au moins deux pièces d'insert d'admission (12a, 12b, 12c) de la pluralité de pièces d'insert d'admission (12a, 12b, 12c).
  6. Procédé destiné à fabriquer un compresseur radial (1), comportant :
    la mise à disposition d'un carter de compresseur (10), la mise à disposition d'un arbre de compresseur (20), la mise à disposition d'au moins un impulseur {14) et le placement de celui-ci sur l'arbre de compresseur (20),
    le logement en rotation de l'arbre de compresseur (20) dans le carter de compresseur (10),
    la mise à disposition d'un insert d'admission (12), de sorte que celui-ci présente une certaine extension dans une direction radiale (RR) et dans une direction axiale (AR) du compresseur radial (1) et définisse un passage d'entrée du fluide {13) et
    le placement de l'insert d'admission (12) dans le carter de compresseur (10), de sorte que dans un trajet fluidique dans le carter de compresseur (10), l'insert d'admission {12) soit associé à un premier niveau d'impulseur du compresseur radial (1) et que dans le trajet fluidique, le passage d'entrée du fluide (13) soit monté en amont d'un premier impulseur (14) et mène vers celui-ci,
    le passage d'entrée du fluide (13) étant ménagé par un usinage de sectionnement dans l'insert d'admission (12), lors de la mise à disposition de l'insert d'admission (12), une pluralité de pièces d'insert d'admission (12a, 12b, 12c) séparées étant superposées et assemblées les unes aux autres de telle sorte que les pièces d'insert d'admission (12a, 12b, 12c) soient placées successivement dans la direction radiale (AR) du compresseur radial (1),
    caractérisé en ce que
    dans une pièce d'insert d'admission (12c) de la pluralité de pièces d'insert d'admission (12a, 12b. 12c), un espace en spirale (121c) est ménagé à chaque usinage de sectionnement.
  7. Procédé selon la revendication 6,
    en tant que matière de départ pour l'insert d'admission (12) étant utilisée de la matière façonnée sous pression.
  8. Procédé selon la revendication 6 ou 7,
    en tant que matière de départ pour l'insert d'admission (12) étant utilisée de la matière laminée, notamment de la tôle métallique.
  9. Procédé selon l'une quelconque des revendications 6 à 8,
    en tant que matière de départ pour l'insert d'admission (12) étant utilisée de la matière à parois massives.
  10. Procédé selon la revendication 6, lors duquel on soude, ou brase ou on visse les unes aux autres les pièces d'insert d'admission (12a, 12b, 12c).
  11. Procédé selon la revendication 6 ou 10,
    le _passage d'entrée du fluide (13) étant ménagé de telle sorte qu'il soit délimité par au moins deux pièces d'insert d'admission (12a, 12b, 12c) de la pluralité de pièces d'insert d'admission 12a, 12b, 12c) .
  12. Procédé selon l'une quelconque des revendications 6 à 11,
    lors duquel on met en oeuvre en tant qu'usinage de sectionnement un usinage par enlèvement de copeaux et/ou un usinage par enlèvement.
EP10749770.3A 2009-07-31 2010-07-21 Compresseur radial et procédé de production Not-in-force EP2473742B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009035575A DE102009035575A1 (de) 2009-07-31 2009-07-31 Radialkompressor und Verfahren zum Herstellen eines Radialkompressors
PCT/DE2010/050049 WO2011012127A1 (fr) 2009-07-31 2010-07-21 Compresseur radial et procédé de production

Publications (2)

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EP2473742A1 EP2473742A1 (fr) 2012-07-11
EP2473742B1 true EP2473742B1 (fr) 2017-12-27

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EP10749770.3A Not-in-force EP2473742B1 (fr) 2009-07-31 2010-07-21 Compresseur radial et procédé de production

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US (1) US9488189B2 (fr)
EP (1) EP2473742B1 (fr)
JP (1) JP5893557B2 (fr)
CN (1) CN102575686B (fr)
DE (1) DE102009035575A1 (fr)
RU (1) RU2484309C1 (fr)
UA (1) UA105230C2 (fr)
WO (1) WO2011012127A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017208783A1 (de) * 2017-05-24 2018-11-29 Robert Bosch Gmbh Verfahren zum Nachbearbeiten eines Kanals in einem Werkstück

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3103892A (en) * 1960-11-21 1963-09-17 Laval Turbine Pump or the like
US3733145A (en) * 1971-03-04 1973-05-15 Nevsky Mash Vand-type centrifugal machine, mainly, high-pressure compressor
US4007996A (en) * 1976-01-22 1977-02-15 Boone Henry S Turbine engine and pump
SU591616A1 (ru) * 1976-06-04 1978-02-05 Предприятие П/Я А-1665 Центробежный компрессор
US4137006A (en) 1977-01-26 1979-01-30 K B Southern, Inc. Composite horizontally split casing
US4212585A (en) * 1978-01-20 1980-07-15 Northern Research And Engineering Corporation Centrifugal compressor
DE3232326C2 (de) * 1982-08-31 1985-10-03 Klein, Schanzlin & Becker Ag, 6710 Frankenthal Topfgehäuse für Kreiselpumpen
US4676717A (en) * 1985-05-22 1987-06-30 Cummins Atlantic, Inc. Compressor housing having replaceable inlet throat and method for manufacturing compressor housing
JPH01108301U (fr) * 1988-01-13 1989-07-21
DE8912547U1 (de) 1988-12-27 1990-02-01 Oregon Etablissement für Patentverwertung, Mauren Schutzhelm, insbesondere Polizeihelm
US5076758A (en) * 1990-07-18 1991-12-31 Ingersoll-Rand Company Centrifugal pumps
RU2112154C1 (ru) * 1996-08-21 1998-05-27 Григорий Григорьевич Петросян Регулируемый диффузор центробежного компрессора
US20040109760A1 (en) * 2002-12-04 2004-06-10 Jones Daniel W. Method and apparatus for increasing the adiabatic efficiency of a centrifugal compressor
JP3838200B2 (ja) 2003-01-09 2006-10-25 株式会社デンソー 遠心式送風装置
EP1719879B1 (fr) * 2005-05-03 2008-01-30 ABB Turbo Systems AG Dispositif de protection en cas d'éclatement pour compresseur radial
WO2007018529A1 (fr) * 2005-08-02 2007-02-15 Honeywell International Inc. Module de compresseur a geometrie variable
DE102007019884A1 (de) * 2007-04-27 2008-11-06 Bayerische Motoren Werke Aktiengesellschaft Verdichter für einen Abgasturbolader
US8857053B2 (en) * 2007-08-29 2014-10-14 Caterpillar Inc. Compressor housing remanufacturing method and apparatus
DE102007042529A1 (de) * 2007-09-07 2009-03-12 Man Turbo Ag Strömungsmaschine und Herstellungsverfahren für eine solche Strömungsmaschine
DE102008025249A1 (de) * 2008-05-27 2009-12-03 Siemens Aktiengesellschaft Sammelraum und Verfahren zur Fertigung

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Publication number Publication date
CN102575686A (zh) 2012-07-11
UA105230C2 (ru) 2014-04-25
US9488189B2 (en) 2016-11-08
CN102575686B (zh) 2014-12-24
RU2484309C1 (ru) 2013-06-10
US20120156023A1 (en) 2012-06-21
EP2473742A1 (fr) 2012-07-11
DE102009035575A1 (de) 2011-03-03
WO2011012127A1 (fr) 2011-02-03
JP5893557B2 (ja) 2016-03-23
JP2013501177A (ja) 2013-01-10

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