EP1688589B1 - Joint d'arbre d'une turbomachine - Google Patents

Joint d'arbre d'une turbomachine Download PDF

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Publication number
EP1688589B1
EP1688589B1 EP05002505A EP05002505A EP1688589B1 EP 1688589 B1 EP1688589 B1 EP 1688589B1 EP 05002505 A EP05002505 A EP 05002505A EP 05002505 A EP05002505 A EP 05002505A EP 1688589 B1 EP1688589 B1 EP 1688589B1
Authority
EP
European Patent Office
Prior art keywords
rotor shaft
ring
bearing housing
turbine
sealing device
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
EP05002505A
Other languages
German (de)
English (en)
Other versions
EP1688589A1 (fr
Inventor
Sven Liebl
Bruno Ferling
Dirk Frankenstein
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.)
BorgWarner Inc
Original Assignee
BorgWarner Inc
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 BorgWarner Inc filed Critical BorgWarner Inc
Priority to EP05002505A priority Critical patent/EP1688589B1/fr
Priority to JP2006021859A priority patent/JP4762737B2/ja
Priority to US11/347,606 priority patent/US7789636B2/en
Priority to CN200610008967XA priority patent/CN1818435B/zh
Priority to KR1020060011899A priority patent/KR101195543B1/ko
Publication of EP1688589A1 publication Critical patent/EP1688589A1/fr
Application granted granted Critical
Publication of EP1688589B1 publication Critical patent/EP1688589B1/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
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • F21V33/0064—Health, life-saving or fire-fighting equipment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/003—Preventing or minimising internal leakage of working-fluid, e.g. between stages by packing rings; Mechanical seals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/18—Lubricating arrangements
    • F01D25/183—Sealing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/12—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by screwing
    • 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
    • F05D2220/00—Application
    • F05D2220/40—Application in turbochargers
    • 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
    • F05D2230/60—Assembly methods
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the invention relates to a turbomachine, in particular an exhaust gas turbocharger, according to the preamble of claim 1.
  • Such a turbomachine in the form of a turbocharger is from the US 2004/0120835 A1 known.
  • turbocharger in the form of a turbocharger is from the DE 100 28 161 C2 or the DE 102 97 203 T5 known.
  • the turbine-side seal between the rotor shaft and the bearing housing, which can be seen there, is accomplished by means of a labyrinth seal.
  • Leakage is thereby possible both in the direction of the turbine wheel and in the direction of the bearing housing.
  • the invention relates to a turbomachine, in particular in the form of an exhaust gas turbocharger, for example for motor vehicles, with a turbine-side rotor shaft sealing system, which may preferably be in the form of a gas-lubricated mechanical seal.
  • This rotor shaft sealing system makes it possible to seal spaces which are exposed to media (liquids and / or gases) which are subject to different pressures, wherein a rotating shaft is guided through a housing wall, which is a rotating shaft in the case of a turbocharger Rotor shaft acts.
  • the turbomachine according to the invention or the rotor shaft sealing system according to the invention is suitable for high temperatures (up to 900 ° C.) and extremely high rotational speeds (up to 300,000 min -1) and peripheral speeds up to 550 m / s suitable.
  • a rotating mating ring (with sampling) is fixed on the rotor shaft, which can be achieved for example by shrinking, screwing or pressing.
  • a stationary slide ring with feathering preferably in the form of a metal diaphragm bellows, is screwed into the housing via a screw-in sleeve. The mating ring together with the sliding ring in the operation of the turbocharger dynamic and the metal diaphragm bellows with the graphite ring represents the static seal.
  • the metal diaphragm bellows is a biasing device that realizes a resilient contact.
  • this part of the entire sealing device as a cartridge.
  • a preload arises in the metal diaphragm bellows so that axial play and possible wear of the sliding surfaces can advantageously be minimized.
  • the mating ring and the sliding ring form a static seal between the rotor shaft and the bearing housing.
  • the rotation of the mating ring generates by its axial sampling a pressure build-up in the contact surface to the sliding ring, so that forms a small axial gap.
  • the sampling of the counter ring is chosen so that a Lekkage (slit flow) is supported by the turbine wheel into the bearing housing interior.
  • a turbomachine 1 according to the invention is shown, which is formed in this example as an exhaust gas turbocharger.
  • this exhaust-gas turbocharger contains, in addition to the following details of a running-shaft sealing device 8 according to the invention, all the usual components, some of which, however, simplify the illustration in FIG Fig. 1 are not shown, since these are dispensable for the explanation of the present invention.
  • Fig. 1 shows the rear wall 2 of a compressor housing, not shown, and a compressor wheel 3 arranged in this compressor housing.
  • a turbine wheel (rotor) 4 is shown, which is arranged in a turbine housing, not shown.
  • the compressor wheel 3 and the turbine wheel 4 are mounted on a rotor shaft 6 at its opposite ends, as can be seen in detail Fig. 1 results.
  • the rotor shaft 6 is guided via a suitable bearing arrangement in a bearing housing 5.
  • the bearing housing 5 has a turbine-side end region 7, which is arranged adjacent to the turbine wheel 4 and which is protected by a heat shield 26 against excessive heating.
  • the turbine-side end portion 7 has a receiving space 30 for a rotor shaft sealing device 8, which in Fig. 1 is marked with the detail X and the following with reference to the enlarged view of Fig. 2 will be explained in detail.
  • the rotor shaft sealing device 8 is constructed as a gas-lubricated sliding ring sealing device comprising a static sealing arrangement and a dynamic sealing arrangement.
  • a counter-ring 11 which comprises a fixing section 12 which can be fixed (shrunk, screwed or pressed on) on a first rotor shaft area 9.
  • the counter ring 11 further comprises a preferably arranged at right angles to the fixing portion 12 annular collar 13 which abuts axially in part on a transition region 31 of the rotor shaft 9, which leads to a second rotor shaft region 10 having a larger diameter than that first rotor shaft area 9.
  • the rotor shaft sealing device 8 also has a sliding ring 14, which is screwed to a pretensioning device, preferably in the form of the illustrated metal diaphragm bellows 19, via a screw-in sleeve 20 with external thread 27 in the bearing housing 5 or in the end section 7 of the bearing housing 5.
  • the slip ring 14 has a main body 16 and a nose 15 extending radially outward from the main body 16. This arrangement results in a contact surface, which assigns to the collar 13 of the counter-ring 11 and with this, as in Fig. 2 shown in the assembled state comes into contact.
  • Fig. 2 further illustrates a graphite ring 18 which is clamped in screwed-in screw 20 in the housing 5.
  • an adapter plate 17 is arranged, which is fixedly connected to the sliding ring 14.
  • the spring element 21 in turn is welded to a welding lip 25 of the screw 20.
  • the welded individual spring elements 21 to 23 of the bellows 19, the adapter plate 17 and the screw 20 and the slide ring 14 is a preassembled cartridge, which adjusts a bias of the sliding ring 14 when mounting this cartridge through the metal diaphragm bellows 19 , so that the axial play and possible wear of the sliding surfaces can be minimized.
  • the adapter plate 17 has an annular body 29 which is disposed around the rotor shaft portion 10 of the rotor shaft 6 around, and which is provided at its radially outward end with the welding lip 24 and the connecting portion 28.
  • Fig. 2 illustrates, the connecting portion 28 abuts both the nose 15 as well as on the main body 16 of the sliding ring 14, while the annular body 29 abuts the main body 16 of the sliding ring 14.

Claims (10)

  1. Turbomachine (1), en particulier turbocompresseur à gaz d'échappement,
    - comprenant une roue de compresseur (3) disposée dans un boîtier de compresseur ;
    - comprenant une roue de turbine (4) disposée dans un carter de turbine ; et
    - comprenant un arbre de rotor (6) qui est guidé dans un boîtier de palier (5) et sur lequel sont fixées d'une part la roue de compresseur (3) et d'autre part la roue de turbine (4) ;
    - un dispositif d'étanchéité d'arbre de rotor (8) étant disposé entre une région d'extrémité côté turbine (7) du boîtier de palier (5) et l'arbre de rotor (6), lequel dispositif d'étanchéité comprend un dispositif de précontrainte (19),
    caractérisée
    - en ce que le dispositif d'étanchéité d'arbre de rotor (8) comprend une bague conjuguée (11) fixée sur l'arbre de rotor (6) ; et
    - en ce qu'une bague de glissement (14) fixe est disposée entre la bague conjuguée (11) et le dispositif de précontrainte (19), laquelle bague de glissement est en contact avec la bague conjuguée dans l'état monté et est fixée dans le boîtier de palier (5) au moyen d'une douille filetée (20) par l'intermédiaire du dispositif de précontrainte (19).
  2. Turbomachine selon la revendication 1, caractérisée en ce que le dispositif d'étanchéité d'arbre de rotor (8) est réalisé sous forme de dispositif d'étanchéité à bague de glissement lubrifié au gaz.
  3. Turbomachine selon la revendication 2, caractérisée en ce que le dispositif d'étanchéité à bague de glissement comprend un agencement d'étanchéité statique et un dispositif d'étanchéité dynamique.
  4. Turbomachine selon la revendication 3, caractérisée en ce que l'unité d'étanchéité dynamique produit l'effet d'étanchéité dynamique au moyen de la bague de glissement (14) avec la bague conjuguée (11) fixée sur l'arbre de rotor (6).
  5. Turbomachine selon la revendication 1, caractérisée en ce que le dispositif de précontrainte est réalisé sous forme de soufflet à membrane métallique (19).
  6. Turbomachine selon la revendication 5, caractérisée en ce que le soufflet à membrane métallique (19), la douille filetée (20) et une tôle d'adaptation (17) sont réalisés sous forme de cartouche prémontée.
  7. Turbomachine selon la revendication 6, caractérisée en ce que le soufflet à membrane métallique (19) comprend des éléments ressorts (21 à 23) qui sont soudés les uns aux autres et qui, pour former la cartouche, sont soudés sur des lèvres de soudure (24 respectivement 25) de la tôle d'adaptation (17), respectivement de la douille filetée (20).
  8. Turbomachine selon l'une quelconque des revendications 1 à 7, caractérisée par une bague en graphite (18) insérée dans le boîtier de palier (5), laquelle bague en graphite est serrée au moyen de la douille filetée (20).
  9. Turbomachine selon l'une quelconque des revendications 1 à 8, caractérisée en ce qu'un bouclier thermique (26) est disposé entre la région d'extrémité côté turbine (7) et la roue de turbine (4).
  10. Procédé de montage d'une turbomachine, en particulier d'un turbocompresseur à gaz d'échappement, qui comprend une roue de compresseur (3) disposée dans un boîtier de compresseur, une roue de turbine (4) disposée dans un carter de turbine, un arbre de rotor (6) guidé dans un boîtier de palier (5), sur lequel arbre de rotor sont fixées d'une part la roue de compresseur (3) et d'autre part la roue de turbine (4), et un dispositif d'étanchéité d'arbre de rotor (8) entre une région d'extrémité côté turbine (7) du boîtier de palier (5) et l'arbre de rotor (6), le procédé comprenant les étapes de procédé suivantes :
    - insertion d'une bague en graphite (8) dans le boîtier de palier (5) ;
    - montage d'une bague conjuguée (11) sur un mandrin de montage et insertion dans le boîtier de palier (5) ;
    - vissage d'une cartouche avec la bague de glissement (14) et le dispositif de précontrainte (19) dans le boîtier de palier (5) à l'aide d'un outil qui vient en prise dans des alésages prévus à cet effet dans une douille filetée (20) et compression de la bague en graphite (18) au cours du vissage ;
    - disposition d'un bouclier thermique (26) sur l'arbre de rotor (5) ; et
    - introduction de l'arbre de rotor (6) dans le boîtier de palier (5) et engagement par pression de la bague conjuguée (11) sur l'arbre de rotor (6) à l'aide du mandrin de montage.
EP05002505A 2005-02-07 2005-02-07 Joint d'arbre d'une turbomachine Not-in-force EP1688589B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP05002505A EP1688589B1 (fr) 2005-02-07 2005-02-07 Joint d'arbre d'une turbomachine
JP2006021859A JP4762737B2 (ja) 2005-02-07 2006-01-31 ターボ機械、特にターボ過給機
US11/347,606 US7789636B2 (en) 2005-02-07 2006-02-03 Turbomachine, particularly exhaust gas turbocharger
CN200610008967XA CN1818435B (zh) 2005-02-07 2006-02-06 转子轴密封装置、包括其的涡轮机以及安装涡轮机的方法
KR1020060011899A KR101195543B1 (ko) 2005-02-07 2006-02-07 터보 머신 및 로터-샤프트 실링 수단

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05002505A EP1688589B1 (fr) 2005-02-07 2005-02-07 Joint d'arbre d'une turbomachine

Publications (2)

Publication Number Publication Date
EP1688589A1 EP1688589A1 (fr) 2006-08-09
EP1688589B1 true EP1688589B1 (fr) 2012-11-28

Family

ID=34933618

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05002505A Not-in-force EP1688589B1 (fr) 2005-02-07 2005-02-07 Joint d'arbre d'une turbomachine

Country Status (5)

Country Link
US (1) US7789636B2 (fr)
EP (1) EP1688589B1 (fr)
JP (1) JP4762737B2 (fr)
KR (1) KR101195543B1 (fr)
CN (1) CN1818435B (fr)

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Also Published As

Publication number Publication date
EP1688589A1 (fr) 2006-08-09
KR20060090197A (ko) 2006-08-10
JP2006220148A (ja) 2006-08-24
CN1818435A (zh) 2006-08-16
KR101195543B1 (ko) 2012-10-29
US20060177319A1 (en) 2006-08-10
JP4762737B2 (ja) 2011-08-31
CN1818435B (zh) 2013-07-31
US7789636B2 (en) 2010-09-07

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