SE466320B - Foerfarande och anordning foer motorbromsning med en fyrtakts foerbraenningsmotor - Google Patents

Foerfarande och anordning foer motorbromsning med en fyrtakts foerbraenningsmotor

Info

Publication number
SE466320B
SE466320B SE8900517A SE8900517A SE466320B SE 466320 B SE466320 B SE 466320B SE 8900517 A SE8900517 A SE 8900517A SE 8900517 A SE8900517 A SE 8900517A SE 466320 B SE466320 B SE 466320B
Authority
SE
Sweden
Prior art keywords
exhaust system
stroke
exhaust
during
combustion chamber
Prior art date
Application number
SE8900517A
Other languages
English (en)
Swedish (sv)
Other versions
SE8900517D0 (sv
SE8900517L (sv
Inventor
U Gobert
Original Assignee
Volvo Ab
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=20375056&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=SE466320(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Volvo Ab filed Critical Volvo Ab
Priority to SE8900517A priority Critical patent/SE466320B/sv
Publication of SE8900517D0 publication Critical patent/SE8900517D0/xx
Priority to US07/752,461 priority patent/US5146890A/en
Priority to BR909007110A priority patent/BR9007110A/pt
Priority to CA002047219A priority patent/CA2047219C/en
Priority to ES90903446T priority patent/ES2044564T3/es
Priority to JP2503674A priority patent/JP2931090B2/ja
Priority to EP90903446A priority patent/EP0458857B1/en
Priority to AU51054/90A priority patent/AU637352B2/en
Priority to DE90903446T priority patent/DE69003094T2/de
Priority to KR1019910700869A priority patent/KR0158458B1/ko
Priority to DK90903446.4T priority patent/DK0458857T3/da
Priority to AT90903446T priority patent/ATE93929T1/de
Priority to PCT/SE1990/000102 priority patent/WO1990009514A1/en
Publication of SE8900517L publication Critical patent/SE8900517L/
Publication of SE466320B publication Critical patent/SE466320B/sv

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
    • F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
    • F02D13/04—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation using engine as brake
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/06—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for braking
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/08—Shape of cams
    • 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
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Valve Device For Special Equipments (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Regulating Braking Force (AREA)
SE8900517A 1989-02-15 1989-02-15 Foerfarande och anordning foer motorbromsning med en fyrtakts foerbraenningsmotor SE466320B (sv)

Priority Applications (13)

Application Number Priority Date Filing Date Title
SE8900517A SE466320B (sv) 1989-02-15 1989-02-15 Foerfarande och anordning foer motorbromsning med en fyrtakts foerbraenningsmotor
PCT/SE1990/000102 WO1990009514A1 (en) 1989-02-15 1990-02-15 A method and a device for engine braking a four stroke internal combustion engine
AT90903446T ATE93929T1 (de) 1989-02-15 1990-02-15 Verfahren und vorrichtung zum bremsen eines viertaktverbrennungsmotors.
JP2503674A JP2931090B2 (ja) 1989-02-15 1990-02-15 ４行程内燃機関にエンジンブレーキをかける方法と装置
DE90903446T DE69003094T2 (de) 1989-02-15 1990-02-15 Verfahren und vorrichtung zum bremsen eines viertaktverbrennungsmotors.
CA002047219A CA2047219C (en) 1989-02-15 1990-02-15 A method and a device for engine braking a four stroke internal combustion engine
ES90903446T ES2044564T3 (es) 1989-02-15 1990-02-15 Metodo y dispositivo para el frenado mediante el motor, en un motor de combustion interna de cuatro tiempos.
US07/752,461 US5146890A (en) 1989-02-15 1990-02-15 Method and a device for engine braking a four stroke internal combustion engine
EP90903446A EP0458857B1 (en) 1989-02-15 1990-02-15 A method and a device for engine braking a four stroke internal combustion engine
AU51054/90A AU637352B2 (en) 1989-02-15 1990-02-15 A method and a device for engine braking a four stroke internal combustion engine
BR909007110A BR9007110A (pt) 1989-02-15 1990-02-15 Metodo e dispositivo para frenagem motora de um motor de combustao interna de quatro tempos
KR1019910700869A KR0158458B1 (ko) 1989-02-15 1990-02-15 4행정 내연기관용 엔진제동방법 및 장치
DK90903446.4T DK0458857T3 (da) 1989-02-15 1990-02-15 Fremgangsmåde og arrangement til motorbremsning med en firetakts forbrændingsmotor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8900517A SE466320B (sv) 1989-02-15 1989-02-15 Foerfarande och anordning foer motorbromsning med en fyrtakts foerbraenningsmotor

Publications (3)

Publication Number Publication Date
SE8900517D0 SE8900517D0 (sv) 1989-02-15
SE8900517L SE8900517L (sv) 1990-08-16
SE466320B true SE466320B (sv) 1992-01-27

Family

ID=20375056

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8900517A SE466320B (sv) 1989-02-15 1989-02-15 Foerfarande och anordning foer motorbromsning med en fyrtakts foerbraenningsmotor

Country Status (13)

Country Link
US (1) US5146890A (es)
EP (1) EP0458857B1 (es)
JP (1) JP2931090B2 (es)
KR (1) KR0158458B1 (es)
AT (1) ATE93929T1 (es)
AU (1) AU637352B2 (es)
BR (1) BR9007110A (es)
CA (1) CA2047219C (es)
DE (1) DE69003094T2 (es)
DK (1) DK0458857T3 (es)
ES (1) ES2044564T3 (es)
SE (1) SE466320B (es)
WO (1) WO1990009514A1 (es)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993025803A1 (en) * 1992-06-17 1993-12-23 Ab Volvo Method and device for motor-braking by means of a multi-cylinder internal combustion engine
WO1994025740A1 (en) * 1993-04-27 1994-11-10 Ab Volvo Exhaust valve mechanism in an internal combustion engine
DE19743751B4 (de) * 1996-10-03 2008-09-04 Volvo Lastvagnar Ab Turbo-Compound-Verbrennungsmotor mit Motorbremse

Families Citing this family (92)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1255447B (it) * 1991-11-08 1995-10-31 Iveco Fiat Motore provvisto di un dispositivo di frenatura continua, particolarmente per un veicolo industriale.
US5406918A (en) * 1993-08-04 1995-04-18 Hino Jidosha Kogyo Kabushiki Kaisha Internal combustion engine
SE502614C2 (sv) * 1994-03-29 1995-11-20 Volvo Ab Anordning för reglering av motorbromseffekten hos en förbränningsmotor
US5647318A (en) 1994-07-29 1997-07-15 Caterpillar Inc. Engine compression braking apparatus and method
US5540201A (en) 1994-07-29 1996-07-30 Caterpillar Inc. Engine compression braking apparatus and method
US5526784A (en) 1994-08-04 1996-06-18 Caterpillar Inc. Simultaneous exhaust valve opening braking system
US5479890A (en) * 1994-10-07 1996-01-02 Diesel Engine Retarders, Inc. Compression release engine brakes with electronically controlled, multi-coil hydraulic valves
US5718199A (en) * 1994-10-07 1998-02-17 Diesel Engine Retarders, Inc. Electronic controls for compression release engine brakes
US5537975A (en) * 1994-10-07 1996-07-23 Diesel Engine Retarders, Inc. Electronically controlled compression release engine brakes
US5511460A (en) * 1995-01-25 1996-04-30 Diesel Engine Retarders, Inc. Stroke limiter for hydraulic actuator pistons in compression release engine brakes
US5619965A (en) 1995-03-24 1997-04-15 Diesel Engine Retarders, Inc. Camless engines with compression release braking
US6125828A (en) * 1995-08-08 2000-10-03 Diesel Engine Retarders, Inc. Internal combustion engine with combined cam and electro-hydraulic engine valve control
US5829397A (en) * 1995-08-08 1998-11-03 Diesel Engine Retarders, Inc. System and method for controlling the amount of lost motion between an engine valve and a valve actuation means
US5537976A (en) * 1995-08-08 1996-07-23 Diesel Engine Retarders, Inc. Four-cycle internal combustion engines with two-cycle compression release braking
JP4129489B2 (ja) * 1995-08-08 2008-08-06 ジェイコブス ビークル システムズ、インコーポレイテッド カムと電子液圧エンジンバルブとの組み合わせ制御を有する内燃機関
US5746175A (en) * 1995-08-08 1998-05-05 Diesel Engine Retarders, Inc. Four-cycle internal combustion engines with two-cycle compression release braking
IT1280907B1 (it) * 1995-08-11 1998-02-11 Iveco Fiat Motore endotermico per un veicolo e relativo metodo di controllo
US5626116A (en) * 1995-11-28 1997-05-06 Cummins Engine Company, Inc. Dedicated rocker lever and cam assembly for a compression braking system
GB2341638B (en) * 1995-11-28 2000-06-07 Cummins Engine Co Inc An engine retarder cycle for operation of an engine brake
US5586531A (en) * 1995-11-28 1996-12-24 Cummins Engine Company, Inc. Engine retarder cycle
US5724939A (en) * 1996-09-05 1998-03-10 Caterpillar Inc. Exhaust pulse boosted engine compression braking method
DE19637999A1 (de) * 1996-09-18 1998-03-19 Daimler Benz Ag Verfahren zum Betreiben einer Motorbremse und Vorrichtung zur Durchführung des Verfahrens
US5787858A (en) * 1996-10-07 1998-08-04 Meneely; Vincent Allan Engine brake with controlled valve closing
AU694703B2 (en) * 1996-10-11 1998-07-23 Mitsubishi Fuso Truck And Bus Corporation Engine-brake assisting system
US5809964A (en) * 1997-02-03 1998-09-22 Diesel Engine Retarders, Inc. Method and apparatus to accomplish exhaust air recirculation during engine braking and/or exhaust gas recirculation during positive power operation of an internal combustion engine
DE19728350A1 (de) * 1997-07-03 1998-12-03 Daimler Benz Ag Verfahren und Vorrichtung zur Erhöhung der Motorbremsleistung von Brennkraftmaschinen
US5996550A (en) * 1997-07-14 1999-12-07 Diesel Engine Retarders, Inc. Applied lost motion for optimization of fixed timed engine brake system
DE19733322A1 (de) 1997-08-01 1999-02-04 Mwp Mahle J Wizemann Pleuco Gm Ventilsteuerung einer als Antrieb oder Bremse schaltbaren Brennkraftmaschine
EP1036267A1 (en) 1997-11-04 2000-09-20 Diesel Engine Retarders, Inc. Lost motion valve actuation system
US6647954B2 (en) * 1997-11-17 2003-11-18 Diesel Engine Retarders, Inc. Method and system of improving engine braking by variable valve actuation
EP1032753A4 (en) * 1997-11-21 2009-07-01 Diesel Engine Retarders Inc INTEGRATED LOSS OF MOTION CONTROL SYSTEM USED FOR DECELERATION AND RGE
EP1038095B1 (en) 1997-12-11 2011-11-09 Jacobs Vehicle Systems, Inc. Variable lost motion valve actuator and method
US8820276B2 (en) * 1997-12-11 2014-09-02 Jacobs Vehicle Systems, Inc. Variable lost motion valve actuator and method
US6293237B1 (en) 1997-12-11 2001-09-25 Diesel Engine Retarders, Inc. Variable lost motion valve actuator and method
US6000374A (en) * 1997-12-23 1999-12-14 Diesel Engine Retarders, Inc. Multi-cycle, engine braking with positive power valve actuation control system and process for using the same
US6718940B2 (en) 1998-04-03 2004-04-13 Diesel Engine Retarders, Inc. Hydraulic lash adjuster with compression release brake
FR2780446B1 (fr) * 1998-06-29 2000-12-29 Inst Francais Du Petrole Procede de controle de l'admission d'un moteur turbo-compresse et moteur associe
DE19833147C2 (de) * 1998-07-23 2000-05-31 Daimler Chrysler Ag Verfahren zur Einstellung der Motorbremsleistung einer aufgeladenen Brennkraftmaschine
US6234143B1 (en) 1999-07-19 2001-05-22 Mack Trucks, Inc. Engine exhaust brake having a single valve actuation
ATE456737T1 (de) 1999-09-10 2010-02-15 Diesel Engine Retarders Inc Kipphebelsystem mit totgang und integrierter motorbremse
US6394050B1 (en) 1999-09-15 2002-05-28 Diesel Engine Retarders, Inc. Actuator piston assembly for a rocker arm system
WO2001020150A1 (en) 1999-09-17 2001-03-22 Diesel Engine Retarders, Inc. Captive volume accumulator for a lost motion system
US6394067B1 (en) 1999-09-17 2002-05-28 Diesel Engine Retardersk, Inc. Apparatus and method to supply oil, and activate rocker brake for multi-cylinder retarding
US6216667B1 (en) 1999-11-12 2001-04-17 Frank J. Pekar Method and device for a supercharged engine brake
DE60045108D1 (de) 1999-12-20 2010-11-25 Jacobs Vehicle Systems Inc Verfahren und vorrichtung zum hydraulischen an- und loskoppeln einer motorbremse mittels totgang
US6386160B1 (en) 1999-12-22 2002-05-14 Jenara Enterprises, Ltd. Valve control apparatus with reset
US6321717B1 (en) 2000-02-15 2001-11-27 Caterpillar Inc. Double-lift exhaust pulse boosted engine compression braking method
US6868824B2 (en) * 2000-03-31 2005-03-22 Diesel Engine Retarders, Inc. System and method of gas recirculation in an internal combustion engine
US6584954B2 (en) 2000-03-31 2003-07-01 Robb Janak Use of external exhaust gas recirculation (“EGR”) to improve compression release braking and method for EGR valve and system cleaning
DE10020884A1 (de) 2000-04-28 2001-10-31 Mahle Ventiltrieb Gmbh Steuereinrichtung für ein Ein- oder Auslaßventil eines Verbrennungsmotors
RU2189460C2 (ru) * 2000-08-15 2002-09-20 Военный автомобильный институт Компрессионный моторный замедлитель
RU2189459C2 (ru) * 2000-08-15 2002-09-20 Военный автомобильный институт Компрессионный моторный замедлитель для тяжелых дизелей
RU2186996C2 (ru) * 2000-08-15 2002-08-10 Военный автомобильный институт Компрессионный моторный замедлитель
AU2001287432A1 (en) 2000-08-29 2002-03-13 Jenara Enterprises Ltd. Apparatus and method to oprate an engine exhaust brake together with an exhaust gas recirculation system
US6446598B1 (en) 2000-12-11 2002-09-10 Caterpillar Inc. Compression brake actuation system and method
US6609495B1 (en) 2000-12-19 2003-08-26 Caterpillar Inc Electronic control of engine braking cycle
WO2002101212A2 (en) 2001-06-13 2002-12-19 Diesel Engine Retarders, Inc. Latched reset mechanism for engine brake
US6622694B2 (en) * 2001-07-30 2003-09-23 Caterpillar Inc Reduced noise engine compression release braking
US6418720B1 (en) 2001-08-31 2002-07-16 Caterpillar Inc. Method and a device for engine braking a four stroke internal combustion engine
US6805093B2 (en) 2002-04-30 2004-10-19 Mack Trucks, Inc. Method and apparatus for combining exhaust gas recirculation and engine exhaust braking using single valve actuation
SE522146C2 (sv) * 2002-05-07 2004-01-20 Volvo Lastvagnar Ab Metod för regenerering av ett partikelfilter vid motorbromsning samt fordon i vilket en sådan metod utnyttjas
DE10250771B4 (de) * 2002-10-30 2014-09-11 Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr Motorbremseinrichtung und Verfahren zu deren Steuerung
SE525932C2 (sv) 2003-11-27 2005-05-31 Volvo Lastvagnar Ab Förfarande vid bromsning med en förbränningsmotor med variabelt turboaggregat
CN1839250B (zh) * 2004-07-17 2011-01-05 玛勒阀门有限公司 用于阀,尤其是内燃机的气体交换阀的控制器
US7954465B2 (en) * 2004-08-17 2011-06-07 Jacobs Vehicle Systems, Inc. Combined exhaust restriction and variable valve actuation
DE102007060822A1 (de) 2007-12-18 2009-06-25 Daimler Ag Verfahren zum Steuern einer Motorbremseinrichtung einer Brennkraftmaschine und Brennkraftmaschine für ein Kraftfahrzeug
AT506338A1 (de) * 2008-02-04 2009-08-15 Man Nutzfahrzeuge Oesterreich Verfahren zur regenerierung eines im abgasstrang eines fahrzeug-dieselmotors angeordneten partikelfilters
US7789065B2 (en) * 2008-07-09 2010-09-07 Zhou Yang Engine braking apparatus with mechanical linkage and lash adjustment
US20100037854A1 (en) * 2008-08-18 2010-02-18 Zhou Yang Apparatus and method for engine braking
WO2010078280A2 (en) * 2009-01-05 2010-07-08 Shanghai Universoon Autoparts Co., Ltd Engine braking devices and methods
EP2444602B1 (en) * 2009-01-05 2015-06-24 Shanghai Universoon Autoparts Co., Ltd Engine braking devices and methods
CN102003240B (zh) * 2009-08-31 2013-01-16 上海尤顺汽车部件有限公司 一种发动机制动装置的改进结构
US7984705B2 (en) 2009-01-05 2011-07-26 Zhou Yang Engine braking apparatus with two-level pressure control valves
US7712449B1 (en) * 2009-05-06 2010-05-11 Jacobs Vehicle Systems, Inc. Lost motion variable valve actuation system for engine braking and early exhaust opening
CN102261283B (zh) 2010-05-27 2013-10-09 上海尤顺汽车部件有限公司 一种固链式发动机制动装置
EP2598727B1 (en) 2010-07-27 2015-10-28 Jacobs Vehicle Systems, Inc. Combined engine braking and positive power engine lost motion valve actuation system
CN103649477B (zh) 2011-07-06 2016-05-11 沃尔沃卡车集团 阀致动机构和包括这种阀致动机构的机动车辆
WO2013014490A1 (en) 2011-07-22 2013-01-31 Renault Trucks Valve actuation mechanism and automotive vehicle comprising such a valve actuation mechanism
US9163534B2 (en) 2011-07-22 2015-10-20 Volvo Trucks AB Valve actuation mechanism and automotive vehicle comprising such a valve actuation mechanism
US8991341B2 (en) 2011-07-22 2015-03-31 Renault Trucks Valve actuation mechanism and automotive vehicle comprising such a valve actuation mechanism
BR112015006532A2 (pt) 2012-09-25 2017-09-26 Renault Trucks mecanismo de acionamento de válvula e veículo automotivo equipado com um tal mecanismo de acionamento de válvula
SE539214C2 (sv) * 2013-12-05 2017-05-16 Scania Cv Ab Förbränningsmotor, fordon som innefattar en sådan förbränningsmotor och förfarande för att styra en sådan förbränningsmotor
DE102013022037A1 (de) * 2013-12-20 2015-06-25 Daimler Ag Verfahren zum Betreiben einer Hubkolben-Verbrennungskraftmaschine
DE102015016526A1 (de) * 2015-12-19 2017-06-22 Daimler Ag Verfahren zum Betreiben einer Hubkolben-Verbrennungskraftmaschine
SE540139C2 (en) 2016-07-11 2018-04-10 Scania Cv Ab Method of changing gear ratio in a gearbox of a vehicle
WO2018065053A1 (en) 2016-10-06 2018-04-12 Volvo Truck Corporation An internal combustion engine and a method for controlling a braking torque of the engine
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WO2018166597A1 (en) 2017-03-16 2018-09-20 Volvo Truck Corporation A system for improved engine braking
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KR20200063453A (ko) * 2018-11-28 2020-06-05 현대자동차주식회사 자동차의 배기브레이크 자동 제어 시스템 및 방법
CN114729603A (zh) 2019-11-20 2022-07-08 沃尔沃卡车集团 用于控制内燃发动机的发动机制动的方法
EP4663928A1 (en) 2024-06-11 2025-12-17 Volvo Truck Corporation Method for controlling an engine compression braking mode of an engine arrangement

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993025803A1 (en) * 1992-06-17 1993-12-23 Ab Volvo Method and device for motor-braking by means of a multi-cylinder internal combustion engine
WO1994025740A1 (en) * 1993-04-27 1994-11-10 Ab Volvo Exhaust valve mechanism in an internal combustion engine
US5609133A (en) * 1993-04-27 1997-03-11 Ab Volvo Exhaust valve mechanism in an internal combustion engine
DE19743751B4 (de) * 1996-10-03 2008-09-04 Volvo Lastvagnar Ab Turbo-Compound-Verbrennungsmotor mit Motorbremse

Also Published As

Publication number Publication date
AU5105490A (en) 1990-09-05
EP0458857B1 (en) 1993-09-01
KR0158458B1 (ko) 1998-12-15
EP0458857A1 (en) 1991-12-04
JP2931090B2 (ja) 1999-08-09
DE69003094D1 (de) 1993-10-07
SE8900517D0 (sv) 1989-02-15
AU637352B2 (en) 1993-05-27
ATE93929T1 (de) 1993-09-15
KR920701618A (ko) 1992-08-12
WO1990009514A1 (en) 1990-08-23
US5146890A (en) 1992-09-15
ES2044564T3 (es) 1994-01-01
SE8900517L (sv) 1990-08-16
DK0458857T3 (da) 1994-03-07
JPH04503987A (ja) 1992-07-16
BR9007110A (pt) 1991-11-12
DE69003094T2 (de) 1994-04-07
CA2047219C (en) 1999-11-30
CA2047219A1 (en) 1990-08-16

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