WO2003018990A3 - Kraftstoffeinspritzeinrichtung für eine brennkraftmaschine - Google Patents

Kraftstoffeinspritzeinrichtung für eine brennkraftmaschine Download PDF

Info

Publication number
WO2003018990A3
WO2003018990A3 PCT/DE2002/003139 DE0203139W WO03018990A3 WO 2003018990 A3 WO2003018990 A3 WO 2003018990A3 DE 0203139 W DE0203139 W DE 0203139W WO 03018990 A3 WO03018990 A3 WO 03018990A3
Authority
WO
WIPO (PCT)
Prior art keywords
injection valve
pressure
combustion engine
opening
fuel injection
Prior art date
Application number
PCT/DE2002/003139
Other languages
English (en)
French (fr)
Other versions
WO2003018990A2 (de
Inventor
Joachim Winter
Gerhard Mack
Christoph Buehler
Friedrich Moser
Thomas Kuegler
Philippe Allio
Peter Boehland
Detlev Di Potz
Original Assignee
Bosch Gmbh Robert
Joachim Winter
Gerhard Mack
Christoph Buehler
Friedrich Moser
Thomas Kuegler
Philippe Allio
Peter Boehland
Sander Potz Maike Hf
Potz Wendelin Hm
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 Bosch Gmbh Robert, Joachim Winter, Gerhard Mack, Christoph Buehler, Friedrich Moser, Thomas Kuegler, Philippe Allio, Peter Boehland, Sander Potz Maike Hf, Potz Wendelin Hm filed Critical Bosch Gmbh Robert
Priority to BR0205939-8A priority Critical patent/BR0205939A/pt
Priority to US10/415,082 priority patent/US6889658B2/en
Priority to EP02758167A priority patent/EP1423598A2/de
Priority to JP2003523818A priority patent/JP2005500467A/ja
Priority to KR10-2003-7005667A priority patent/KR20040028662A/ko
Publication of WO2003018990A2 publication Critical patent/WO2003018990A2/de
Publication of WO2003018990A3 publication Critical patent/WO2003018990A3/de

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
    • F02M45/02—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts
    • F02M45/04—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts with a small initial part, e.g. initial part for partial load and initial and main part for full load
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
    • F02M45/02—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts
    • F02M45/04—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts with a small initial part, e.g. initial part for partial load and initial and main part for full load
    • F02M45/08—Injectors peculiar thereto
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
    • F02M45/02—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts
    • F02M45/04—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts with a small initial part, e.g. initial part for partial load and initial and main part for full load
    • F02M45/08—Injectors peculiar thereto
    • F02M45/086—Having more than one injection-valve controlling discharge orifices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
    • F02M45/12—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship providing a continuous cyclic delivery with variable pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/20—Closing valves mechanically, e.g. arrangements of springs or weights or permanent magnets; Damping of valve lift
    • F02M61/205—Means specially adapted for varying the spring tension or assisting the spring force to close the injection-valve, e.g. with damping of valve lift
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/46—Valves, e.g. injectors, with concentric valve bodies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M57/00—Fuel-injectors combined or associated with other devices
    • F02M57/02—Injectors structurally combined with fuel-injection pumps
    • F02M57/022—Injectors structurally combined with fuel-injection pumps characterised by the pump drive
    • F02M57/023—Injectors structurally combined with fuel-injection pumps characterised by the pump drive mechanical
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/20—Varying fuel delivery in quantity or timing
    • F02M59/36—Varying fuel delivery in quantity or timing by variably-timed valves controlling fuel passages to pumping elements or overflow passages
    • F02M59/366—Valves being actuated electrically
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
    • F02M59/46—Valves
    • F02M59/466—Electrically operated valves, e.g. using electromagnetic or piezoelectric operating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
    • F02M59/46—Valves
    • F02M59/466—Electrically operated valves, e.g. using electromagnetic or piezoelectric operating means
    • F02M59/468—Electrically operated valves, e.g. using electromagnetic or piezoelectric operating means using piezoelectric operating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • F02M61/1806—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

Die Kraftstoffeinspritzeinrichtung weist für jeden Zylinder der Brennkraftmaschine eine Kraftstoffhochdruckpumpe (10) mit einem Pumpenarbeitsraum (22) und ein mit diesem verbundenes Kraftstoffeinspritzventil (12) auf. Das Kraftstoffeinspritzventil (12) weist ein erstes Einspritzventilglied (28) auf, durch das wenigstens eine erste Einspritzöffnung (32) gesteuert wird und das durch den im Pumpenarbeitsraum (22) erzeugten Druck gegen eine Schliesskraft in einer Öffnungsrichtung (29) bewegbar ist. Innerhalb des hohl ausgebildeten ersten Einspritzventilglieds (28) ist ein zweites Einspritzventilglied (128) verschiebbar geführt, durch das wenigstens eine zweite Einspritzöffnung (132) gesteuert wird und das durch den im Druckraum (40) herrschenden Druck gegen eine Schliesskraft in einer Öffnungsrichtung (29) bewegbar ist, wobei das zweite Einspritzventilglied (128) zumindest mittelbar von dem in einem kraftstoffgefüllten Steuerraum (50) herrschenden Druck beaufschlagt ist, der durch eine Förderpumpe (52) abhängig von Betriebsparametern der Brennkraftmaschine derart erzeugt wird, dass das zweite Einspritzventilglied (128) in seiner geschlossenen Stellung bleibt oder öffnen kann.
PCT/DE2002/003139 2001-08-25 2002-08-23 Kraftstoffeinspritzeinrichtung für eine brennkraftmaschine WO2003018990A2 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BR0205939-8A BR0205939A (pt) 2001-08-25 2002-08-23 Dispositivo de injeção de combustìvel para um motor de combustão interna
US10/415,082 US6889658B2 (en) 2001-08-25 2002-08-23 Fuel injection device for an internal combustion engine
EP02758167A EP1423598A2 (de) 2001-08-25 2002-08-23 Kraftstoffeinspritzeinrichtung für eine brennkraftmaschine
JP2003523818A JP2005500467A (ja) 2001-08-25 2002-08-23 内燃機関に用いられる燃料噴射装置
KR10-2003-7005667A KR20040028662A (ko) 2001-08-25 2002-08-23 엔진용 연료 분사 장치

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10141678.4 2001-08-25
DE10141678A DE10141678A1 (de) 2001-08-25 2001-08-25 Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine

Publications (2)

Publication Number Publication Date
WO2003018990A2 WO2003018990A2 (de) 2003-03-06
WO2003018990A3 true WO2003018990A3 (de) 2003-08-14

Family

ID=7696587

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2002/003139 WO2003018990A2 (de) 2001-08-25 2002-08-23 Kraftstoffeinspritzeinrichtung für eine brennkraftmaschine

Country Status (10)

Country Link
US (1) US6889658B2 (de)
EP (1) EP1423598A2 (de)
JP (1) JP2005500467A (de)
KR (1) KR20040028662A (de)
CN (1) CN1466654A (de)
BR (1) BR0205939A (de)
DE (1) DE10141678A1 (de)
PL (1) PL371271A1 (de)
RU (1) RU2003113561A (de)
WO (1) WO2003018990A2 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10305187A1 (de) * 2003-02-08 2004-08-19 Robert Bosch Gmbh Kraftstoff-Einspritzvorrichtung, insbesondere für Brennkraftmaschinen mit Kraftstoff-Direkteinspritzung
DE10309078A1 (de) * 2003-03-03 2004-09-16 Robert Bosch Gmbh Kraftstoffeinspritzventil für eine Brennkraftmaschine
DE10311522A1 (de) * 2003-03-17 2004-09-30 Robert Bosch Gmbh Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine
DE10312584A1 (de) * 2003-03-21 2004-09-30 Robert Bosch Gmbh Kraftstoffeinspritzventil für Brennkraftmaschinen
DE10336327B4 (de) * 2003-08-07 2016-03-17 Robert Bosch Gmbh Injektor für Kraftstoff-Einspritzsysteme von Brennkraftmaschinen, insbesondere von direkteinspritzenden Dieselmotoren
DE10344000A1 (de) * 2003-09-23 2005-04-21 Bosch Gmbh Robert Einspritzdüse für eine Brennkraftmaschine
DE102004028195A1 (de) * 2004-06-09 2005-12-29 Volkswagen Mechatronic Gmbh & Co. Kg Einspritzventil mit Schließdruckbeaufschlagung der Ventilnadel
TR200402048A1 (tr) * 2004-08-18 2006-03-21 Robert Bosch Gmbh Hidrolik kontrollü değişken kesitli enjektör memesi.
DE102009002480A1 (de) * 2009-04-20 2010-10-21 Robert Bosch Gmbh Kraftstoffeinspritzvorrichtung
US8443780B2 (en) 2010-06-01 2013-05-21 Caterpillar Inc. Low leakage cam assisted common rail fuel system, fuel injector, and operating method therefor
CN102022240A (zh) * 2010-11-19 2011-04-20 无锡华源凯马发动机有限公司 多缸柴油机一体化油泵油嘴单缸独立喷油结构

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4285471A (en) * 1977-03-16 1981-08-25 Robert Bosch Gmbh Fuel injection nozzle
US4356976A (en) * 1979-10-31 1982-11-02 Robert Bosch Gmbh Fuel injection nozzle for internal combustion engines
DE4432686A1 (de) * 1994-09-14 1996-05-23 Man B & W Diesel Ag Querschnittgesteuerte Einspritzdüse
US6003497A (en) * 1994-10-31 1999-12-21 Caterpillar Inc. Mechanically actuated hydraulically amplified fuel injector with electrically controlled pressure relief

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4115457A1 (de) * 1990-05-17 1991-11-21 Avl Verbrennungskraft Messtech Einspritzduese fuer eine brennkraftmaschine
GB2289313B (en) * 1994-05-13 1998-09-30 Caterpillar Inc Fluid injector system
GB9709678D0 (en) * 1997-05-14 1997-07-02 Lucas Ind Plc Fuel injector
US5899389A (en) * 1997-06-02 1999-05-04 Cummins Engine Company, Inc. Two stage fuel injector nozzle assembly
GB9810327D0 (en) 1998-05-15 1998-07-15 Lucas Ind Plc Fuel system and pump suitable for use therein
DE69922087T2 (de) * 1998-06-24 2005-12-01 Delphi Technologies, Inc., Troy Brennstoffeinspritzdüse
GB9813476D0 (en) * 1998-06-24 1998-08-19 Lucas Ind Plc Fuel injector
GB9905231D0 (en) * 1999-03-09 1999-04-28 Lucas Ind Plc Fuel injector
GB9916464D0 (en) * 1999-07-14 1999-09-15 Lucas Ind Plc Fuel injector
DE60038479T2 (de) * 1999-10-06 2009-04-09 Delphi Technologies, Inc., Troy Kraftstoffeinspritzventil
US6247450B1 (en) * 1999-12-27 2001-06-19 Detroit Diesel Corporation Electronic controlled diesel fuel injection system
US6418914B1 (en) * 2000-12-01 2002-07-16 Caterpillar Inc. Constraint idler
US6557779B2 (en) * 2001-03-02 2003-05-06 Cummins Engine Company, Inc. Variable spray hole fuel injector with dual actuators
US6601566B2 (en) * 2001-07-11 2003-08-05 Caterpillar Inc Fuel injector with directly controlled dual concentric check and engine using same
US6725838B2 (en) * 2001-10-09 2004-04-27 Caterpillar Inc Fuel injector having dual mode capabilities and engine using same
US6684854B2 (en) * 2001-12-14 2004-02-03 Caterpillar Inc Auxiliary systems for an engine having two electrical actuators on a single circuit
DE10205749A1 (de) * 2002-02-12 2003-08-21 Bosch Gmbh Robert Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4285471A (en) * 1977-03-16 1981-08-25 Robert Bosch Gmbh Fuel injection nozzle
US4356976A (en) * 1979-10-31 1982-11-02 Robert Bosch Gmbh Fuel injection nozzle for internal combustion engines
DE4432686A1 (de) * 1994-09-14 1996-05-23 Man B & W Diesel Ag Querschnittgesteuerte Einspritzdüse
US6003497A (en) * 1994-10-31 1999-12-21 Caterpillar Inc. Mechanically actuated hydraulically amplified fuel injector with electrically controlled pressure relief

Also Published As

Publication number Publication date
US20040065294A1 (en) 2004-04-08
US6889658B2 (en) 2005-05-10
WO2003018990A2 (de) 2003-03-06
KR20040028662A (ko) 2004-04-03
DE10141678A1 (de) 2003-05-08
EP1423598A2 (de) 2004-06-02
BR0205939A (pt) 2003-08-05
JP2005500467A (ja) 2005-01-06
RU2003113561A (ru) 2005-01-20
CN1466654A (zh) 2004-01-07
PL371271A1 (en) 2005-06-13

Similar Documents

Publication Publication Date Title
US6067955A (en) Fuel injection device for internal combustion engines
US6145492A (en) Control valve for a fuel injection valve
KR20010043493A (ko) 연료 분사 시스템
ATE491091T1 (de) Injektor zum einspritzen von kraftstoff
WO2005121544A8 (de) Kraftstoffinjektor mit variabler aktorübersetzung
WO2003018990A3 (de) Kraftstoffeinspritzeinrichtung für eine brennkraftmaschine
ATE535704T1 (de) Injektor zum einspritzen von kraftstoff
KR870000506A (ko) 엔진의 연료 분사 장치
JPH08240166A (ja) 燃料噴射装置
GB2265948A (en) Fuel-injection device ,such as a pump nozzle for internal combustion engines.
ATE299993T1 (de) Kraftstoffeinspritzeinrichtung für eine brennkraftmaschine
RU2000107804A (ru) Электронная инжекторная топливная система, приводимая в действие с помощью гидравлики
US7121237B2 (en) Device and a method for the generation of pressure pulses
WO2001051805A3 (de) Einspritzdüse
FR2862120B1 (fr) Vanne a trois voies et dispositif d'injection de carburant equipe de celle-ci
SE0200944D0 (sv) Fuel injection system
WO2001031191A3 (de) Kraftstoffeinspritzventil für brennkraftmaschinen
WO2004061288A3 (en) High pressure control valve for a fuel injector
HUP0401031A2 (en) Fuel-injection device for an internal combustion engine
JPH05149210A (ja) 内燃機関の燃料噴射弁
EP2484889B1 (de) Druckwiederherstellungssystem für kurvenunterstütztes leckarmes Common-Rail-System, Kraftstoffeinspritzer und Betriebsverfahren dafür
DE50104994D1 (de) Hub-/ und druckgesteuerter injektor mit doppelschieber
JPS59206606A (ja) 内燃機関の排気弁駆動装置
WO2002025099A8 (de) Ventilanordnung
WO2002086305A3 (de) Kraftstoffeinspritzeinrichtung für eine brennkraftmaschine

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): BR CN IN JP KR PL RU US

Kind code of ref document: A2

Designated state(s): BR CN IN JP KR PL RU

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LU MC NL PT SE SK TR

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FR GB GR IE IT LU MC NL PT SE SK TR

WWE Wipo information: entry into national phase

Ref document number: 2002758167

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 588/CHENP/2003

Country of ref document: IN

WWE Wipo information: entry into national phase

Ref document number: 028027310

Country of ref document: CN

WWE Wipo information: entry into national phase

Ref document number: 2003523818

Country of ref document: JP

Ref document number: 1020037005667

Country of ref document: KR

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 10415082

Country of ref document: US

WWP Wipo information: published in national office

Ref document number: 1020037005667

Country of ref document: KR

WWP Wipo information: published in national office

Ref document number: 2002758167

Country of ref document: EP

WWW Wipo information: withdrawn in national office

Ref document number: 2002758167

Country of ref document: EP