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EP1186781B2 - Dispositif de montage d'un filtre silencieux pour l'entrée d'une turbo-soufflante - Google Patents

Dispositif de montage d'un filtre silencieux pour l'entrée d'une turbo-soufflante Download PDF

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Publication number
EP1186781B2
EP1186781B2 EP00810814A EP00810814A EP1186781B2 EP 1186781 B2 EP1186781 B2 EP 1186781B2 EP 00810814 A EP00810814 A EP 00810814A EP 00810814 A EP00810814 A EP 00810814A EP 1186781 B2 EP1186781 B2 EP 1186781B2
Authority
EP
European Patent Office
Prior art keywords
compressor
vibration
uncoupler
casing part
turbocharger
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.)
Expired - Lifetime
Application number
EP00810814A
Other languages
German (de)
English (en)
Other versions
EP1186781B1 (fr
EP1186781A1 (fr
Inventor
Josef Bättig
Alfons Tröndle
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.)
Accelleron Industries AG
Original Assignee
ABB Turbo Systems AG
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8174898&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1186781(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by ABB Turbo Systems AG filed Critical ABB Turbo Systems AG
Priority to EP00810814A priority Critical patent/EP1186781B2/fr
Priority to DE50013694T priority patent/DE50013694D1/de
Priority to TW090101395A priority patent/TW576899B/zh
Priority to KR1020037003374A priority patent/KR100812585B1/ko
Priority to CNB018185827A priority patent/CN1242179C/zh
Priority to AU2001281644A priority patent/AU2001281644A1/en
Priority to PCT/CH2001/000511 priority patent/WO2002020996A1/fr
Priority to JP2002525376A priority patent/JP4681211B2/ja
Publication of EP1186781A1 publication Critical patent/EP1186781A1/fr
Publication of EP1186781B1 publication Critical patent/EP1186781B1/fr
Publication of EP1186781B2 publication Critical patent/EP1186781B2/fr
Application granted granted Critical
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • 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
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/701—Suction grids; Strainers; Dust separation; Cleaning 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
    • 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
    • F04D29/668—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations
    • 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

Definitions

  • the invention relates to a fastening device for releasably attaching a filter silencer to a housing part of a belonging to a turbocharger for internal combustion engines compressor according to the preamble of claim 1.
  • a turbocharger is in EP 0 574 605 A1 disclosed.
  • a filter silencer is usually arranged at the compressor inlet, which reduces these noise emissions. Since the filter muffler is rigidly connected to a housing part of the compressor and this vibration technology is not decoupled from the turbocharger, the vibrations of the turbocharger transmitted to the filter muffler.
  • the turbocharger is in turn usually attached either directly or via a mounting foot on a console of an internal combustion engine. The axial distance between mounting foot and filter silencer is usually very large. If the turbocharger is excited by engine vibrations and / or gets into natural frequency oscillations, the oscillation amplitude is greatest due to the geometry of the filter silencer. This is undesirable, inter alia, because of the resulting large material load. In countries with appropriate provisions, this vibration problem can lead to rejection of the technical approval.
  • the fastening device has a vibration decoupler for connecting a filter silencer to a housing part of a compressor at the compressor inlet between the filter silencer and the housing part of the compressor.
  • the filter silencer is largely isolated from the compressor housing part and thus from the turbocharger.
  • large vibration amplitudes are avoided at the filter muffler and premature fatigue due to high, vibration-induced material stress is counteracted.
  • vibration decoupler As a vibration decoupler is best used a temperature and oil resistant and wear-resistant, rubber-elastic element. In this way, the vibration decoupler is perfectly adapted to the conditions of use, which ensures a long service life of the vibration decoupler. It has been found that rubber-elastic elements made of an elastomer (such as Viton® from Du Pont or from silicone) are very well suited as vibration isolators.
  • an elastomer such as Viton® from Du Pont or from silicone
  • the vibration decoupler viewed in the installed state, a low rigidity in the axial direction and transversely to the axial direction of the turbocharger on.
  • the stiffnesses in the axial direction and transversely to the axial direction can be chosen differently.
  • the low rigidity ensures a sufficient vibration decoupling between the filter silencer and the housing part of the compressor.
  • the vibration decoupler is chosen as soft as possible. But at least the stiffness is chosen so that taking into account the weight of the components and their geometry and taking into account the geometry of the connection between the filter muffler and the housing part of the compressor, the filter muffler finally a natural frequency of about 25% to 50%, preferably 40% at least the lowest having the natural frequencies of the turbocharger.
  • the filter silencer Upon excitation of the turbocharger in the natural frequency range, for example by engine vibrations, the filter silencer then oscillates in the supercritical range.
  • the vibration decoupler is under prestressing. In this way it can be prevented that the contact between the vibration isolator and a component is lost and abrasion and wear occur on the vibration isolator.
  • the formation of the vibration decoupler in the form of an O-ring is particularly advantageous because in this embodiment, the forces to be absorbed by the compound are distributed over the entire circumference of the O-ring.
  • FIG. 1 shows in section to its longitudinal axis 10 a turbocharger 12 and a portion of a compressor inlet 14 attached to the turbocharger 12 filter muffler 16.
  • the turbocharger 12 has a typical structure, ie it comprises a compressor 18 and a turbine 20 whose wheels 22, 24 on a common Shaft 26 are spaced from each other.
  • the turbocharger 12 has a turbocharger housing 28, which comprises a plurality of housing parts, such as a turbine housing 29, a bearing housing 30 and a compressor housing 27, which themselves may consist of several housing parts.
  • the shaft 26 is mounted between the turbine runner 24 and the compressor wheel 22.
  • the turbocharger 12 is mounted on a bracket 34 of the engine (not shown).
  • the filter silencer 16 is fastened to the compressor inlet 14 on a housing part 32 of the compressor 18.
  • Filter silencer 16 and housing part 32 of the compressor 18 are connected via a fastening device 36 rigidly together.
  • the fastening device 36 comprises in this example on a circular line around the turbocharger axis 10 arranged, first mounting holes 38 which are provided in the housing part 32 of the compressor 18.
  • the first attachment openings 38 are threaded.
  • the fastening device 36 comprises second fastening openings 42, which are arranged in a flange 40 of the filter silencer 16 and can be coaxially brought into coincidence with the first fastening openings 38.
  • fasteners 44 which are formed in this example as screws, and are screwed through the second mounting holes 42 in the first mounting holes 38, and so connect the filter muffler 16 rigidly with the housing part 32 of the compressor 18.
  • FIG. 1 it can be seen that the distance between the mounting foot 31 and the filter muffler 16 is quite large. Vibrations transmitted to the turbocharger 12 via the bracket 34 and the mounting leg 31 from the engine (not shown), and natural vibrations of the turbocharger 12 are transmitted to the filter muffler 16 via the rigid attachment device 36. Due to the large distance between the mounting foot 31 and filter muffler 16, the vibration amplitude at the filter muffler 16 is the largest. What brings the already mentioned disadvantages.
  • Each one of these fastening devices 36 comprises, in the housing part 32 of the compressor 18, arranged first mounting holes 38 with thread and fasteners 44 in the form of screws which are screwed into the first mounting holes 38.
  • the attachment openings 38 are preferably arranged in a plane perpendicular to the turbocharger axis 10, arranged on a ring around the turbocharger axis 10.
  • the direction in which the turbocharger axle (10) lies is in each case marked by an arrow a.
  • the ring is ideally a circular ring and the mounting holes 38 are evenly distributed on the ring.
  • the inventive fastening device 36 comprises a vibration decoupler 46, which is arranged between the filter silencer 16 and the housing part 32 of the compressor 18.
  • the vibration isolator 46 is made of an elastomer having low rigidity in the axial direction and transverse to the axial direction of the turbocharger 12.
  • the stiffness is selected so that the natural frequencies of the filter silencer 16 is about 40% of at least the lowest of the natural frequencies of the turbocharger 12.
  • the rigidity depends inter alia on the geometry of the components and their weight, as well as on the design of the fastening device 36.
  • fastening device 36 shown comprises in addition to the above-mentioned elements an O-ring vibration isolator 46, a radially outwardly open annular groove 62 disposed in an element 60 of the filter silencer 62 for supporting the vibration isolator 46 and two fastening rings 64, 66.
  • the two fastening rings 64, 66 have holes 68 which can be brought into coincidence with the first fastening openings 38 in the housing part 32 of the compressor 18 for accommodating the fastening elements 44. They are coaxial with each other and one behind the other in the axial direction, then arranged on the housing part 32 of the compressor 18. Via the helical fastening elements 44, the fastening rings 64, 66 are fixed to the housing part 32 of the compressor 18.
  • the mounting rings 64, 66 support surfaces 67, which support the O-ring 46 at an angle of about + 30 ° to + 50 ° or -30 ° to -50 °.
  • the support surfaces 67 together again form a kind of annular groove which is radially open towards the inside and spaced from the annular groove 62 in the element 60 extends parallel to this.
  • the diameter on the radially inner side of the mounting rings 64, 66 and the diameter of the annular groove 62 in the element 60 of the filter muffler 16 are selected so that the arranged between them O-ring vibration isolator 46 is in the mounted state under bias.
  • a natural frequency of the filter muffler 16 is obtained from about 40% of the turbocharger 12 having an axial rigidity of 7000 N / mm to 14000 N / mm and a radial rigidity of 15000 to 40,000 N / mm.
  • a further embodiment is shown, which is analogous to that in Fig.2 shown is constructed.
  • a securing element 68 still belongs to the fastening device 36.
  • the securing element 68 is then arranged axially adjacent to the fastening ring 66 adjacent to the filter muffler 16 and fastened to the housing part 32 together with the fastening rings 64, 66 with the aid of the fastening means 44. It protrudes radially both inwards as well as outward on the mounting rings 64, 66 addition.
  • the securing element like the mounting ring 64, 66, be configured annular or, as in the example shown, consist of Ringsegment Swissen.
  • the housing part 32 of the compressor 18 adjacent mounting ring 64 is integrally formed with the housing part 32.
  • FIG Fig. 4 shows a further variant of Fig. 2 known embodiment.
  • the fastening device 36 comprises fastening elements 44 in the form of clamping elements 72.
  • the housing part 32 of the compressor 18 therefore has a fastening flange 70 instead of first fastening openings 38.
  • the fastening rings 64, 66 have no attachment opening 38.
  • the fixation of the mounting rings 64, 66 on the housing part 32 of the compressor 18 takes place instead of helical fasteners 44 with the clamping brackets 72, distributed over the circumference provide a firm connection between the components.
  • the O-ring vibration isolator 46 and the mounting rings 64, 66 - which are e.g. can be connected to each other by means of Spannklammem or by means of introduced into them auxiliary holes and auxiliary screws - pre-assembled on the filter muffler 16. Then the filter muffler 16 is fastened via the fastening rings 64, 66 by means of the fastening elements 44 to the housing part 32 of the compressor 18 and thus to the turbocharger 12.
  • a natural frequency of the filter muffler 16 is from about 40% of the turbocharger 12 having an axial stiffness of 7000 N / mm to 14000 N / mm of the vibration isolator 46 and a radial stiffness of 15,000 to 40,000 N / mm of the vibration isolator 46 reached.
  • attachment device 36 Various other variations and combinations of said attachment device 36 are conceivable.
  • clamping brackets 72 and helical fastening elements 44 may be used in combination.
  • the second attachment openings 42 may instead be arranged in a flange 40 of the filter silencer 16 in another of the compressor inlet 14 adjacent element of the filter silencer 16.
  • the second attachment openings 42 may be provided in the filter muffler 16 with a thread.
  • the first attachment openings 38 in the housing part 32 of the compressor 18 may be arranged in a flange of the housing part 32.
  • the helical fasteners 44 may then be threaded from the compressor side rather than from the side of the filter muffler 16.

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

Claims (10)

  1. Dispositif comprenant un silencieux de filtre (16) ainsi qu'une partie de boîtier (32) d'un compresseur (18) appartenant à une turbosoufflante (12) pour moteurs à combustion interne,
    dans lequel le silencieux de filtre (16) est fixé à l'aide d'éléments de fixation (44, 64, 66) de manière desserrable sur la partie de boîtier du compresseur,
    caractérisé en ce que
    le dispositif présente un découpleur de vibrations (46) réalisé sous forme de joint torique, lequel découpleur de vibrations (46) est disposé dans la région des éléments de fixation (44, 64, 66) entre le silencieux de filtre (16) et la partie de boîtier (32) du compresseur (18), de sorte que dans le cas d'une excitation de la turbosoufflante, le silencieux de filtre (16) vibre avec une autre fréquence que le boîtier du compresseur (27), en ce qu'
    une rainure annulaire (62) ouverte radialement vers l'extérieur, disposée dans un élément (60) du silencieux de filtre (16) adjacent à l'entrée du compresseur (14), ainsi qu'une face de support (67) fixée sur la partie de boîtier (32) du compresseur (18) et réalisée sous forme de rainure annulaire ouverte radialement vers l'intérieur sont prévues, et en ce que
    le découpleur de vibrations (46) est supporté par la rainure annulaire (62) du silencieux de filtre (16) et par la face de support (67) réalisée sous forme de rainure annulaire ouverte radialement vers l'intérieur,
    la face de support (67) réalisée sous forme de rainure annulaire ouverte radialement vers l'intérieur étant constituée par deux bagues de fixation (64, 66), dont les côtés radialement internes s'étendent de manière espacée radialement depuis la rainure annulaire (62) parallèlement à celle-ci, les deux bagues de fixation (64, 66) étant disposées l'une derrière l'autre coaxialement dans la direction axiale et étant connectées au moyen d'éléments de fixation (44) à la partie de boîtier (32) du compresseur (18).
  2. Dispositif selon la revendication précédente, caractérisé en ce que l'on prévoit comme découpleur de vibrations (46) un élément en caoutchouc élastique de préférence constitué d'un élastomère, résistant à l'usure et résistant à la température et à l'huile.
  3. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que le découpleur de vibrations (46) présente une faible rigidité à la fois dans la direction axiale (10) et transversalement à la direction axiale (10) de la turbosoufflante (12).
  4. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que le découpleur de vibrations (46) présente une rigidité telle que la fréquence d'au moins la fréquence propre la plus basse du silencieux de filtre découplé (16) corresponde environ à 40% de la fréquence propre la plus basse de la turbosoufflante (12).
  5. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce qu'une bague de fixation (64) voisine de la partie de boîtier (32) du compresseur (18) et qui sert à supporter le découpleur de vibrations (46) est réalisé d'une seule pièce avec la partie de boîtier (32) du compresseur (18).
  6. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il est prévu un élément de fixation (68) qui, lors d'un défaillance du découpleur de vibrations (46) s'oppose à un desserrage de la connexion entre le silencieux de filtre (16) et la partie de boîtier (32) du compresseur (18).
  7. Dispositif selon la revendication 6, caractérisé en ce que l'élément de fixation (68) est fixé sur au moins une bague de fixation (64, 66) disposée adjacent à la partie de boîtier (32) du compresseur (18) et/ou la partie de boîtier (32) du compresseur (18) et en cas de défaillance du découpleur de vibrations (46) vient en prise depuis le côté du silencieux de filtre (16) avec l'élément (60) du silencieux de filtre (16) portant la rainure annulaire (62).
  8. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que le découpleur de vibrations (46) est précontraint mécaniquement.
  9. Dispositif selon la revendication 8, caractérisé en ce que la précontrainte est appliquée par le biais de bagues de fixation (64, 66) fixées sur la partie de boîtier (32) du compresseur (18) sur le découpleur de vibrations (46) et les bagues de fixation (64, 66) supportent le découpleur de vibrations en forme de joint torique (46) de préférence suivant un angle d'environ +30° à +50° ou de -30° à -50°.
  10. Turbosoufflante pour suralimenter des moteurs à combustion interne, caractérisée par un dispositif selon l'une quelconque des revendications précédentes.
EP00810814A 2000-09-08 2000-09-08 Dispositif de montage d'un filtre silencieux pour l'entrée d'une turbo-soufflante Expired - Lifetime EP1186781B2 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
EP00810814A EP1186781B2 (fr) 2000-09-08 2000-09-08 Dispositif de montage d'un filtre silencieux pour l'entrée d'une turbo-soufflante
DE50013694T DE50013694D1 (de) 2000-09-08 2000-09-08 Befestigungsvorrichtung für einen Filterschalldämpfer am Verdichtereingang eines Turboladers
TW090101395A TW576899B (en) 2000-09-08 2001-01-20 Fastening device for a filter sound absorber at a compressor inlet of a turbocharger
PCT/CH2001/000511 WO2002020996A1 (fr) 2000-09-08 2001-08-21 Dispositif de fixation destine a un silencieux a filtre se trouvant a l'entree du compresseur d'un turbocompresseur
CNB018185827A CN1242179C (zh) 2000-09-08 2001-08-21 在涡轮增压器的压缩机入口上的过滤消声器的固定装置
AU2001281644A AU2001281644A1 (en) 2000-09-08 2001-08-21 Mounting device for a filter and sound damper unit on the compressor input of a turbocharger
KR1020037003374A KR100812585B1 (ko) 2000-09-08 2001-08-21 내연 기관용 터보차저 및 터보차저의 압축기 입구에서의 필터 흡음기용 고정 장치
JP2002525376A JP4681211B2 (ja) 2000-09-08 2001-08-21 ターボチャージャの圧縮機のケーシング部分並びにフィルタ吸音器を有する装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00810814A EP1186781B2 (fr) 2000-09-08 2000-09-08 Dispositif de montage d'un filtre silencieux pour l'entrée d'une turbo-soufflante

Publications (3)

Publication Number Publication Date
EP1186781A1 EP1186781A1 (fr) 2002-03-13
EP1186781B1 EP1186781B1 (fr) 2006-11-02
EP1186781B2 true EP1186781B2 (fr) 2012-05-30

Family

ID=8174898

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00810814A Expired - Lifetime EP1186781B2 (fr) 2000-09-08 2000-09-08 Dispositif de montage d'un filtre silencieux pour l'entrée d'une turbo-soufflante

Country Status (8)

Country Link
EP (1) EP1186781B2 (fr)
JP (1) JP4681211B2 (fr)
KR (1) KR100812585B1 (fr)
CN (1) CN1242179C (fr)
AU (1) AU2001281644A1 (fr)
DE (1) DE50013694D1 (fr)
TW (1) TW576899B (fr)
WO (1) WO2002020996A1 (fr)

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DE10360770A1 (de) * 2003-12-23 2005-07-28 Abb Turbo Systems Ag Schalldämpferbefestigung
EP1586745B1 (fr) 2004-04-13 2015-07-29 ABB Turbo Systems AG Carter de compresseur
EP1602803A1 (fr) * 2004-06-03 2005-12-07 ABB Turbo Systems AG Agencement de réduction de vibrations d'un système de moteur à combustion et turbocompresseur
KR100659517B1 (ko) * 2005-12-06 2006-12-20 양해숙 압축기의 소음저감장치
WO2008023033A1 (fr) * 2006-08-24 2008-02-28 Abb Turbo Systems Ag Fixation de silencieux-filtre
US8096127B2 (en) * 2007-02-09 2012-01-17 Mitsubishi Heavy Industries, Ltd. Exhaust turbo-supercharger
DE102008008886A1 (de) * 2008-02-13 2009-08-20 Man Turbo Ag Eintrittsstutzen für einen Axialverdichter
EP2090756A1 (fr) * 2008-02-18 2009-08-19 ABB Turbo Systems AG Dispositif de fixation pour une turbocompresseur de gaz d'échappement
KR100975121B1 (ko) * 2010-01-15 2010-08-11 김기찬 접이식 연등
JP6097188B2 (ja) * 2013-09-25 2017-03-15 三菱重工業株式会社 過給機
CN111878222A (zh) * 2016-09-15 2020-11-03 株式会社Ihi 增压器
DE102018212260B4 (de) * 2018-07-24 2024-10-02 Vitesco Technologies GmbH Abgasturbolader mit optimiertem akustischen Verhalten
DE102020207638A1 (de) 2020-06-19 2021-12-23 Mahle International Gmbh Abgasturbolader-Anordnung mit einem Abgasturbolader und mit einem Aktuator
CN111946501B (zh) * 2020-08-06 2025-03-04 江门市大长江集团有限公司 一种空滤器及摩托车

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JP4681211B2 (ja) 2011-05-11
CN1473245A (zh) 2004-02-04
TW576899B (en) 2004-02-21
EP1186781B1 (fr) 2006-11-02
EP1186781A1 (fr) 2002-03-13
DE50013694D1 (de) 2006-12-14
JP2004507668A (ja) 2004-03-11
KR100812585B1 (ko) 2008-03-13
AU2001281644A1 (en) 2002-03-22
CN1242179C (zh) 2006-02-15
KR20030032013A (ko) 2003-04-23

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