DE4027174A1 - Kennfeldstabilisierung bei einem radialverdichter - Google Patents
Kennfeldstabilisierung bei einem radialverdichterInfo
- Publication number
- DE4027174A1 DE4027174A1 DE4027174A DE4027174A DE4027174A1 DE 4027174 A1 DE4027174 A1 DE 4027174A1 DE 4027174 A DE4027174 A DE 4027174A DE 4027174 A DE4027174 A DE 4027174A DE 4027174 A1 DE4027174 A1 DE 4027174A1
- Authority
- DE
- Germany
- Prior art keywords
- impeller
- inlet
- contour
- radial compressor
- compressor according
- 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.)
- Granted
Links
- 230000006641 stabilisation Effects 0.000 title claims description 41
- 238000011105 stabilization Methods 0.000 title claims description 41
- 230000003019 stabilising effect Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 5
- 230000000087 stabilizing effect Effects 0.000 description 4
- 238000005457 optimization Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000237519 Bivalvia Species 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 235000020639 clam Nutrition 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/02—Surge control
-
- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/68—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers
- F04D29/681—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps
- F04D29/685—Inducing localised fluid recirculation in the stator-rotor interface
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S415/00—Rotary kinetic fluid motors or pumps
- Y10S415/914—Device to control boundary layer
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
- Compressor (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Priority Applications (13)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4027174A DE4027174A1 (de) | 1990-08-28 | 1990-08-28 | Kennfeldstabilisierung bei einem radialverdichter |
| ZA915834A ZA915834B (en) | 1990-08-28 | 1991-07-25 | Compressor range stabilization |
| PCT/EP1991/001431 WO1992003660A1 (de) | 1990-08-28 | 1991-07-30 | Kennfeldstabilisierung bei einem radialverdichter |
| US07/940,892 US5333990A (en) | 1990-08-28 | 1991-07-30 | Performance characteristics stabilization in a radial compressor |
| CA002090615A CA2090615A1 (en) | 1990-08-28 | 1991-07-30 | Performance characteristics stabilization in a radial compressor |
| JP3512765A JPH05509142A (ja) | 1990-08-28 | 1991-07-30 | 星形コムプレッサーの動作特性安定化装置 |
| DE59103244T DE59103244D1 (de) | 1990-08-28 | 1991-07-30 | Kennfeldstabilisierung bei einem radialverdichter. |
| KR1019910701534A KR920702468A (ko) | 1990-08-28 | 1991-07-30 | 원심압축기의 유동범위 안정화장치 |
| EP91914047A EP0545953B1 (de) | 1990-08-28 | 1991-07-30 | Kennfeldstabilisierung bei einem radialverdichter |
| AT91914047T ATE112820T1 (de) | 1990-08-28 | 1991-07-30 | Kennfeldstabilisierung bei einem radialverdichter. |
| BR919106796A BR9106796A (pt) | 1990-08-28 | 1991-07-30 | Estabilizacao de faixa de operacao de compressor |
| PL29143391A PL291433A1 (en) | 1990-08-28 | 1991-08-14 | Apparatus for stabilizing characteristic curve field of radial compressors |
| CS912627A CS262791A3 (en) | 1990-08-28 | 1991-08-26 | Device for centrifugal compressor performance stabilization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4027174A DE4027174A1 (de) | 1990-08-28 | 1990-08-28 | Kennfeldstabilisierung bei einem radialverdichter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE4027174A1 true DE4027174A1 (de) | 1992-03-05 |
| DE4027174C2 DE4027174C2 (enExample) | 1992-06-11 |
Family
ID=6413072
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE4027174A Granted DE4027174A1 (de) | 1990-08-28 | 1990-08-28 | Kennfeldstabilisierung bei einem radialverdichter |
| DE59103244T Expired - Fee Related DE59103244D1 (de) | 1990-08-28 | 1991-07-30 | Kennfeldstabilisierung bei einem radialverdichter. |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE59103244T Expired - Fee Related DE59103244D1 (de) | 1990-08-28 | 1991-07-30 | Kennfeldstabilisierung bei einem radialverdichter. |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US5333990A (enExample) |
| EP (1) | EP0545953B1 (enExample) |
| JP (1) | JPH05509142A (enExample) |
| KR (1) | KR920702468A (enExample) |
| AT (1) | ATE112820T1 (enExample) |
| BR (1) | BR9106796A (enExample) |
| CA (1) | CA2090615A1 (enExample) |
| CS (1) | CS262791A3 (enExample) |
| DE (2) | DE4027174A1 (enExample) |
| PL (1) | PL291433A1 (enExample) |
| WO (1) | WO1992003660A1 (enExample) |
| ZA (1) | ZA915834B (enExample) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19920524A1 (de) * | 1999-05-05 | 2000-12-07 | Daimler Chrysler Ag | Radialverdichter mit Wandschlitzen |
| DE4212653B4 (de) * | 1991-04-16 | 2005-12-01 | Holset Engineering Co. Ltd., Huddersfield | Verdichter |
| DE102006007347A1 (de) * | 2006-02-17 | 2007-08-30 | Daimlerchrysler Ag | Verdichter für eine Brennkraftmaschine |
| US8157516B2 (en) | 2004-08-19 | 2012-04-17 | Honeywell International Inc. | Compressor wheel housing |
| WO2012079664A1 (de) * | 2010-12-16 | 2012-06-21 | Bayerische Motoren Werke Aktiengesellschaft | Verdichter für die aufladung einer brennkraftmaschine |
| DE102011121996A1 (de) | 2011-12-23 | 2013-06-27 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Vorrichtung zum Betrieb eines Verdichters |
| US8882444B2 (en) | 2010-04-19 | 2014-11-11 | GM Global Technology Operations LLC | Compressor gas flow deflector and compressor incorporating the same |
| CN111219249A (zh) * | 2019-07-12 | 2020-06-02 | 于魁江 | 一种新型轮式发动机 |
Families Citing this family (49)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5246335A (en) * | 1991-05-01 | 1993-09-21 | Ishikawajima-Harimas Jukogyo Kabushiki Kaisha | Compressor casing for turbocharger and assembly thereof |
| DE59206751D1 (de) * | 1992-10-17 | 1996-08-14 | Asea Brown Boveri | Stabilisierungseinrichtung zur Kennfelderweiterung eines Verdichters |
| JP3816150B2 (ja) * | 1995-07-18 | 2006-08-30 | 株式会社荏原製作所 | 遠心流体機械 |
| GB2319809A (en) * | 1996-10-12 | 1998-06-03 | Holset Engineering Co | An enhanced map width compressor |
| GB9722916D0 (en) * | 1997-10-31 | 1998-01-07 | Holset Engineering Co | Compressor |
| US6231301B1 (en) * | 1998-12-10 | 2001-05-15 | United Technologies Corporation | Casing treatment for a fluid compressor |
| US6183195B1 (en) * | 1999-02-04 | 2001-02-06 | Pratt & Whitney Canada Corp. | Single slot impeller bleed |
| EP1473465B2 (en) * | 2003-04-30 | 2018-08-01 | Holset Engineering Company Limited | Compressor |
| JP2005188337A (ja) * | 2003-12-25 | 2005-07-14 | Toyota Motor Corp | 作動流体還流路を有する過給用コンプレッサ |
| GB0403869D0 (en) * | 2004-02-21 | 2004-03-24 | Holset Engineering Co | Compressor |
| US7204241B2 (en) * | 2004-08-30 | 2007-04-17 | Honeywell International, Inc. | Compressor stage separation system |
| JP4592563B2 (ja) * | 2005-11-07 | 2010-12-01 | 三菱重工業株式会社 | 排気ターボ過給機のコンプレッサ |
| JP2007127108A (ja) * | 2005-11-07 | 2007-05-24 | Mitsubishi Heavy Ind Ltd | 排気ターボ過給機のコンプレッサ |
| US7698894B2 (en) * | 2006-05-22 | 2010-04-20 | International Engine Intellectual Property Company, Llc | Engine intake air compressor and method |
| US7575411B2 (en) * | 2006-05-22 | 2009-08-18 | International Engine Intellectual Property Company Llc | Engine intake air compressor having multiple inlets and method |
| US7475539B2 (en) * | 2006-05-24 | 2009-01-13 | Honeywell International, Inc. | Inclined rib ported shroud compressor housing |
| WO2007148042A1 (en) * | 2006-06-17 | 2007-12-27 | Cummins Turbo Technologies Limited | Compressor |
| JP5351401B2 (ja) | 2007-09-28 | 2013-11-27 | 三菱重工業株式会社 | 圧縮機 |
| US8061974B2 (en) * | 2008-09-11 | 2011-11-22 | Honeywell International Inc. | Compressor with variable-geometry ported shroud |
| DE112009002683T5 (de) | 2008-11-18 | 2013-03-07 | Borgwarner Inc. | Verdichter eines Abgasturboladers |
| JP5182519B2 (ja) * | 2009-02-17 | 2013-04-17 | 株式会社Ihi | 遠心圧縮機 |
| JP5479021B2 (ja) * | 2009-10-16 | 2014-04-23 | 三菱重工業株式会社 | 排気ターボ過給機のコンプレッサ |
| DE102009052162B4 (de) * | 2009-11-06 | 2016-04-14 | Mtu Friedrichshafen Gmbh | Verdichteranordnung und Verfahren zur Herstellung einer solchen |
| JP5430685B2 (ja) * | 2010-02-09 | 2014-03-05 | 株式会社Ihi | 非軸対称自己循環ケーシングトリートメントを有する遠心圧縮機 |
| WO2011099417A1 (ja) * | 2010-02-09 | 2011-08-18 | 株式会社Ihi | 非対称自己循環ケーシングトリートメントを有する遠心圧縮機 |
| US9151297B2 (en) * | 2010-02-09 | 2015-10-06 | Ihi Corporation | Centrifugal compressor having an asymmetric self-recirculating casing treatment |
| WO2011099419A1 (ja) * | 2010-02-09 | 2011-08-18 | 株式会社Ihi | 非対称自己循環ケーシングトリートメントを有する遠心圧縮機 |
| DE102010021929A1 (de) * | 2010-05-28 | 2011-12-01 | Daimler Ag | Ansaugtrakt für eine Verbrennungskraftmaschine |
| CN102892995B (zh) * | 2010-06-04 | 2015-11-25 | 博格华纳公司 | 排气涡轮增压器的压缩机 |
| DE102010026176B4 (de) | 2010-07-06 | 2015-12-17 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Vorrichtung und Verfahren zur Kennfeldstabilisierung eines Verdichters |
| JP5047352B2 (ja) * | 2010-12-28 | 2012-10-10 | 三菱重工業株式会社 | 排気ターボ過給機のハウジング構造 |
| JP5895343B2 (ja) * | 2011-01-24 | 2016-03-30 | 株式会社Ihi | 遠心圧縮機及び遠心圧縮機の製造方法 |
| JP5824821B2 (ja) * | 2011-02-25 | 2015-12-02 | 株式会社Ihi | 遠心圧縮機 |
| DE102011019006B3 (de) * | 2011-04-29 | 2012-08-30 | Voith Patent Gmbh | Strömungsverdichter, insbesondere zur Aufladung eines Verbrennungsmotors |
| DE102011109704A1 (de) * | 2011-08-06 | 2013-02-07 | Daimler Ag | Verdichter für eine Strömungsmaschine, insbesondere einen Abgasturbolader |
| WO2014047516A1 (en) * | 2012-09-21 | 2014-03-27 | Energy Recovery Inc. | Hydraulic system with modular inserts |
| US10107296B2 (en) * | 2013-06-25 | 2018-10-23 | Ford Global Technologies, Llc | Turbocharger systems and method to prevent compressor choke |
| US9482240B2 (en) * | 2013-07-31 | 2016-11-01 | Honeywell International Inc. | Compressor housing assembly for a turbocharger |
| DE102013018368B4 (de) | 2013-11-02 | 2016-06-02 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Verstellbare Drallerzeugungseinrichtung für Verdichter |
| US10378557B2 (en) * | 2013-12-06 | 2019-08-13 | Borgwarner Inc. | Reduced noise compressor recirculation |
| US9644639B2 (en) * | 2014-01-27 | 2017-05-09 | Pratt & Whitney Canada Corp. | Shroud treatment for a centrifugal compressor |
| EP3165775B1 (en) * | 2014-07-03 | 2019-09-04 | Mitsubishi Heavy Industries Engine & Turbocharger, Ltd. | Compressor cover, centrifugal compressor, and supercharger, and compressor cover manufacturing method |
| US9822698B2 (en) | 2015-02-06 | 2017-11-21 | Honeywell International Inc. | Passive and semi-passive inlet-adjustment mechanisms for compressor, and turbocharger having same |
| WO2016132644A1 (ja) * | 2015-02-18 | 2016-08-25 | 株式会社Ihi | 遠心圧縮機および過給機 |
| JP6001707B2 (ja) | 2015-02-25 | 2016-10-05 | 株式会社オティックス | 過給機用のコンプレッサハウジング |
| CN108474390B (zh) * | 2016-02-15 | 2020-11-10 | 三菱重工发动机和增压器株式会社 | 离心压缩机及增压器 |
| US10519974B2 (en) * | 2017-10-17 | 2019-12-31 | Borgwarner Inc. | Multi-piece compressor housing for a turbocharger |
| US10935035B2 (en) * | 2017-10-26 | 2021-03-02 | Hanwha Power Systems Co., Ltd | Closed impeller with self-recirculation casing treatment |
| JP7740529B2 (ja) * | 2022-04-22 | 2025-09-17 | 株式会社Ihi | 遠心圧縮機 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4212585A (en) * | 1978-01-20 | 1980-07-15 | Northern Research And Engineering Corporation | Centrifugal compressor |
| EP0348674A1 (de) * | 1988-06-29 | 1990-01-03 | Asea Brown Boveri Ag | Einrichtung zur Kennfelderweiterung eines Radialverdichters |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB479427A (en) * | 1935-05-31 | 1938-01-31 | Gyoergy Jendrassik | Improvements in rotary compressors |
| US2342219A (en) * | 1940-03-15 | 1944-02-22 | Lockheed Aircraft Corp | Centrifugal supercharger |
| GB897575A (en) * | 1958-07-30 | 1962-05-30 | Sulzer Ag | Methods of and apparatus for preventing surging in single-stage or multi-stage radial flow compressors |
| JPS608359B2 (ja) * | 1979-08-01 | 1985-03-02 | 株式会社日立製作所 | 遠心圧縮機のディフュ−ザ |
| US4676717A (en) * | 1985-05-22 | 1987-06-30 | Cummins Atlantic, Inc. | Compressor housing having replaceable inlet throat and method for manufacturing compressor housing |
| EP0229519B2 (en) * | 1985-12-24 | 1996-11-13 | Holset Engineering Company Limited | Improvements in and relating to compressors |
| GB2202585B (en) * | 1987-03-24 | 1991-09-04 | Holset Engineering Co | Improvements in and relating to compressors |
| US4930978A (en) * | 1988-07-01 | 1990-06-05 | Household Manufacturing, Inc. | Compressor stage with multiple vented inducer shroud |
| US5246335A (en) * | 1991-05-01 | 1993-09-21 | Ishikawajima-Harimas Jukogyo Kabushiki Kaisha | Compressor casing for turbocharger and assembly thereof |
-
1990
- 1990-08-28 DE DE4027174A patent/DE4027174A1/de active Granted
-
1991
- 1991-07-25 ZA ZA915834A patent/ZA915834B/xx unknown
- 1991-07-30 JP JP3512765A patent/JPH05509142A/ja active Pending
- 1991-07-30 CA CA002090615A patent/CA2090615A1/en not_active Abandoned
- 1991-07-30 KR KR1019910701534A patent/KR920702468A/ko not_active Ceased
- 1991-07-30 AT AT91914047T patent/ATE112820T1/de not_active IP Right Cessation
- 1991-07-30 EP EP91914047A patent/EP0545953B1/de not_active Expired - Lifetime
- 1991-07-30 BR BR919106796A patent/BR9106796A/pt unknown
- 1991-07-30 DE DE59103244T patent/DE59103244D1/de not_active Expired - Fee Related
- 1991-07-30 US US07/940,892 patent/US5333990A/en not_active Expired - Fee Related
- 1991-07-30 WO PCT/EP1991/001431 patent/WO1992003660A1/de not_active Ceased
- 1991-08-14 PL PL29143391A patent/PL291433A1/xx unknown
- 1991-08-26 CS CS912627A patent/CS262791A3/cs unknown
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4212585A (en) * | 1978-01-20 | 1980-07-15 | Northern Research And Engineering Corporation | Centrifugal compressor |
| EP0348674A1 (de) * | 1988-06-29 | 1990-01-03 | Asea Brown Boveri Ag | Einrichtung zur Kennfelderweiterung eines Radialverdichters |
Non-Patent Citations (1)
| Title |
|---|
| Firmenschrift KKK 01-04284 3 6.81 ND2 RD, Axialventilatoren ohne instabilen Arbeitsbereich * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4212653B4 (de) * | 1991-04-16 | 2005-12-01 | Holset Engineering Co. Ltd., Huddersfield | Verdichter |
| DE19920524A1 (de) * | 1999-05-05 | 2000-12-07 | Daimler Chrysler Ag | Radialverdichter mit Wandschlitzen |
| FR2794817A1 (fr) | 1999-05-05 | 2000-12-15 | Daimler Chrysler Ag | Compresseur radial avec fenetes en paroi |
| DE19920524C2 (de) * | 1999-05-05 | 2001-12-06 | Daimler Chrysler Ag | Radialverdichter |
| US6394751B1 (en) | 1999-05-05 | 2002-05-28 | Daimlerchrysler Ag | Radial compressor with wall slits |
| US8157516B2 (en) | 2004-08-19 | 2012-04-17 | Honeywell International Inc. | Compressor wheel housing |
| DE102006007347A1 (de) * | 2006-02-17 | 2007-08-30 | Daimlerchrysler Ag | Verdichter für eine Brennkraftmaschine |
| US8882444B2 (en) | 2010-04-19 | 2014-11-11 | GM Global Technology Operations LLC | Compressor gas flow deflector and compressor incorporating the same |
| DE102011017419B4 (de) | 2010-04-19 | 2021-11-18 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | Ablenkeinheit für eine Gasströmung in einem Kompressor und Kompressor, der diese enthält |
| WO2012079664A1 (de) * | 2010-12-16 | 2012-06-21 | Bayerische Motoren Werke Aktiengesellschaft | Verdichter für die aufladung einer brennkraftmaschine |
| DE102011121996A1 (de) | 2011-12-23 | 2013-06-27 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Vorrichtung zum Betrieb eines Verdichters |
| DE102011121996B4 (de) * | 2011-12-23 | 2013-07-11 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Vorrichtung zum Betrieb eines Verdichters |
| CN111219249A (zh) * | 2019-07-12 | 2020-06-02 | 于魁江 | 一种新型轮式发动机 |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE112820T1 (de) | 1994-10-15 |
| CS262791A3 (en) | 1992-03-18 |
| DE59103244D1 (de) | 1994-11-17 |
| BR9106796A (pt) | 1993-07-06 |
| PL291433A1 (en) | 1992-07-13 |
| ZA915834B (en) | 1992-04-29 |
| DE4027174C2 (enExample) | 1992-06-11 |
| KR920702468A (ko) | 1992-09-04 |
| EP0545953B1 (de) | 1994-10-12 |
| US5333990A (en) | 1994-08-02 |
| EP0545953A1 (de) | 1993-06-16 |
| JPH05509142A (ja) | 1993-12-16 |
| WO1992003660A1 (de) | 1992-03-05 |
| CA2090615A1 (en) | 1992-03-01 |
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