ES2050049T3 - Conducto de gas de escape con cuerpo soporte de catalizador atacado por el flujo en forma de helice. - Google Patents

Conducto de gas de escape con cuerpo soporte de catalizador atacado por el flujo en forma de helice.

Info

Publication number
ES2050049T3
ES2050049T3 ES91900017T ES91900017T ES2050049T3 ES 2050049 T3 ES2050049 T3 ES 2050049T3 ES 91900017 T ES91900017 T ES 91900017T ES 91900017 T ES91900017 T ES 91900017T ES 2050049 T3 ES2050049 T3 ES 2050049T3
Authority
ES
Spain
Prior art keywords
exhaust gas
flow
section
propeller
support body
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
ES91900017T
Other languages
English (en)
Inventor
Helmut Swars
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.)
Vitesco Technologies Lohmar Verwaltungs GmbH
Original Assignee
Emitec Gesellschaft fuer Emissionstechnologie mbH
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 Emitec Gesellschaft fuer Emissionstechnologie mbH filed Critical Emitec Gesellschaft fuer Emissionstechnologie mbH
Application granted granted Critical
Publication of ES2050049T3 publication Critical patent/ES2050049T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/009—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/011—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more purifying devices arranged in parallel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
    • F01N3/2807—Metal other than sintered metal
    • F01N3/281—Metallic honeycomb monoliths made of stacked or rolled sheets, foils or plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2882—Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2882—Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices
    • F01N3/2885—Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices with exhaust silencers in a single housing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2892—Exhaust flow directors or the like, e.g. upstream of catalytic device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2250/00—Combinations of different methods of purification
    • F01N2250/02—Combinations of different methods of purification filtering and catalytic conversion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2330/00—Structure of catalyst support or particle filter
    • F01N2330/02—Metallic plates or honeycombs, e.g. superposed or rolled-up corrugated or otherwise deformed sheet metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2330/00—Structure of catalyst support or particle filter
    • F01N2330/06—Ceramic, e.g. monoliths
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2510/00—Surface coverings
    • F01N2510/04—Surface coverings for sound absorption
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies
    • 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
    • Y10S55/00—Gas separation
    • Y10S55/30—Exhaust treatment

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Processes For Solid Components From Exhaust (AREA)

Abstract

TUBERIA DE GASES DE ESCAPE CON CUERPO PORTADOR DE CATALIZADOR CON FLUJO ESPIRAL. DE ACUERDO CON LA INVENCION, SE COLOCA UN CUERPO PORTADOR DE CATALIZADOR (6) Y/O UN FILTRO DE HOLLIN DIESEL (7) EN UNA SEGUNDA SECCION (2) DE UNA TUBERIA DE GAS DE ESCAPE, QUE EMPALMA CON UNA PRIMERA SECCION (1) DE FORMA ACODADA CASI PERPENDICULAR. MEDIANTE LA ESPECIAL CONFORMACION DE LA PIEZA INTERMEDIA (4) QUE UNE LAS DOS SECCIONES SE FUERZA AL GAS DE ESCAPE A UNA CORRIENTE EN FORMA DE ESPIRAL QUE CONDUCE A UN FLUJO OBLICUO DEL CUERPO. DE ESTE MODO SE EQUIPARA LA IMPULSION DEL CUERPO A TRAVES DE SU SECCION Y SE RETRASA LA APLICACION DEL FLUJO LAMINAR EN LOS CANALES DEL MISMO, DE MANERA QUE EL GAS PUEDE REACCIONAR MEJOR CON EL CATALIZADOR. ADEMAS, DADO EL CASO, CON LA AYUDA DE UNA ESTRUCTURA SUPERFICIAL ESPECIAL (41, 42) EN LA PIEZA INTERMEDIA (4), SE CONSIGUE UN EFECTO INSONORIZANTE QUE PERMITE LOS REBAJES EN EL MISMO SILENCIADOR. DE ESTE MODO, SE MINIMIZA LA PERDIDA TOTAL DE PRESION QUE APARECE EN LA TUBERIA.
ES91900017T 1989-12-22 1990-12-10 Conducto de gas de escape con cuerpo soporte de catalizador atacado por el flujo en forma de helice. Expired - Lifetime ES2050049T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP89123787 1989-12-22

Publications (1)

Publication Number Publication Date
ES2050049T3 true ES2050049T3 (es) 1994-05-01

Family

ID=8202269

Family Applications (1)

Application Number Title Priority Date Filing Date
ES91900017T Expired - Lifetime ES2050049T3 (es) 1989-12-22 1990-12-10 Conducto de gas de escape con cuerpo soporte de catalizador atacado por el flujo en forma de helice.

Country Status (9)

Country Link
US (1) US5144797A (es)
EP (1) EP0506686B1 (es)
JP (1) JP2645410B2 (es)
KR (1) KR0159111B1 (es)
BR (1) BR9007939A (es)
DE (1) DE59004955D1 (es)
ES (1) ES2050049T3 (es)
RU (1) RU2066376C1 (es)
WO (1) WO1991010048A1 (es)

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DE4408130A1 (de) * 1994-03-10 1995-09-14 Bayerische Motoren Werke Ag Vorrichtung zur Abgasreinigung bei Brennkraftmaschinen
US5824041A (en) * 1994-06-08 1998-10-20 Medtronic, Inc. Apparatus and methods for placement and repositioning of intraluminal prostheses
SE504095C2 (sv) * 1995-03-01 1996-11-11 Volvo Ab Anordning för katalytisk avgasrening med två katalysatorenheter i serie
DE59709173D1 (de) * 1996-05-23 2003-02-27 Scambia Ind Developments Ag Sc Auspuffkrümmer mit Katalysator
JP3108649B2 (ja) * 1997-04-18 2000-11-13 株式会社ヤマダコーポレーション 車両排ガス浄化装置
KR100308952B1 (ko) * 1999-05-10 2001-09-26 이계안 오블리크 클로즈 커플드 캐털리스트 출구측 컨넥터
JP2002070532A (ja) * 2000-08-28 2002-03-08 Ibiden Co Ltd 排気ガス浄化装置
US6684633B2 (en) * 2001-04-27 2004-02-03 Marion Barney Jett Exhaust device for two-stroke internal combustion engine
CA2509644A1 (en) 2002-12-11 2004-06-24 Nielsen Media Research, Inc. Detecting a composition of an audience
US7340888B2 (en) 2005-04-26 2008-03-11 Donaldson Company, Inc. Diesel particulate matter reduction system
AT502545B1 (de) * 2005-10-13 2008-06-15 Avl List Gmbh Abgassystem
US20070144158A1 (en) * 2005-12-22 2007-06-28 Girard James W Exhaust dispersion device
US7757484B2 (en) * 2007-01-31 2010-07-20 Caterpillar Inc. Exhaust treatment device having flow-promoting end caps
JP4941330B2 (ja) * 2008-01-25 2012-05-30 トヨタ紡織株式会社 エアクリーナ用エレメント
US8411963B2 (en) 2008-08-08 2013-04-02 The Nielsen Company (U.S.), Llc Methods and apparatus to count persons in a monitored environment
DE102009015420A1 (de) * 2009-03-27 2010-09-30 Emitec Gesellschaft Für Emissionstechnologie Mbh Wabenkörper für ein Abgasreinigungssystem
KR101091188B1 (ko) 2009-09-25 2011-12-09 대지금속 주식회사 디젤 차량용 머플러
JP6152612B2 (ja) * 2012-12-13 2017-06-28 アルパテック株式会社 過給機用サイレンサおよびこのサイレンサを使用した過給機
US11711638B2 (en) 2020-06-29 2023-07-25 The Nielsen Company (Us), Llc Audience monitoring systems and related methods
US11860704B2 (en) 2021-08-16 2024-01-02 The Nielsen Company (Us), Llc Methods and apparatus to determine user presence
US11758223B2 (en) 2021-12-23 2023-09-12 The Nielsen Company (Us), Llc Apparatus, systems, and methods for user presence detection for audience monitoring

Family Cites Families (9)

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US2682312A (en) * 1949-11-30 1954-06-29 Clarence N Hopkins Elbow exhaust muffler
DE2308721A1 (de) * 1973-02-22 1974-08-29 Volkswagenwerk Ag Einrichtung zur katalytischen abgasreinigung
JPS5417415A (en) * 1977-07-08 1979-02-08 Nippon Soken Inc Catalytic device for exhaust gas purification
DE2902779C2 (de) * 1979-01-25 1985-09-26 Süddeutsche Kühlerfabrik Julius Fr. Behr GmbH & Co. KG, 7000 Stuttgart Matrix für einen katalytischen Reaktor zur Abgasreinigung bei Brennkraftmaschinen
JPS5928010A (ja) * 1982-08-05 1984-02-14 Nippon Denso Co Ltd 排気ガス浄化用構造物
DE3536315A1 (de) * 1985-10-11 1987-04-16 Sueddeutsche Kuehler Behr Katalysatoranordnung zur reinigung von abgasen, insbesondere einer brennkraftmaschine
DE3760479D1 (en) * 1986-05-12 1989-09-28 Interatom Honeycomb body, particularly a catalyst carrier, provided with opposedly folded metal sheet layers, and its manufacturing process
DE3760478D1 (en) * 1986-05-12 1989-09-28 Interatom Metallic catalyst carrier whose layers constitute an involute surface
BR8907458A (pt) * 1988-09-22 1991-04-02 Emitec Emissionstechnologie Corpo alveolar,especialmente corpo de suporte de catalisador,constituido de uma multiplicidade de pilhas de chapa entrelacadas

Also Published As

Publication number Publication date
US5144797A (en) 1992-09-08
DE59004955D1 (de) 1994-04-14
BR9007939A (pt) 1992-10-06
EP0506686A1 (de) 1992-10-07
WO1991010048A1 (de) 1991-07-11
JP2645410B2 (ja) 1997-08-25
RU2066376C1 (ru) 1996-09-10
EP0506686B1 (de) 1994-03-09
KR920703976A (ko) 1992-12-18
JPH04506394A (ja) 1992-11-05
KR0159111B1 (ko) 1998-12-15

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