EP1307648B1 - Soupape d'injection de carburant - Google Patents

Soupape d'injection de carburant Download PDF

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Publication number
EP1307648B1
EP1307648B1 EP01962561A EP01962561A EP1307648B1 EP 1307648 B1 EP1307648 B1 EP 1307648B1 EP 01962561 A EP01962561 A EP 01962561A EP 01962561 A EP01962561 A EP 01962561A EP 1307648 B1 EP1307648 B1 EP 1307648B1
Authority
EP
European Patent Office
Prior art keywords
fuel injection
armature
guide sleeve
injection valve
valve needle
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
EP01962561A
Other languages
German (de)
English (en)
Other versions
EP1307648A1 (fr
Inventor
Martin Maier
Guenther Hohl
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1307648A1 publication Critical patent/EP1307648A1/fr
Application granted granted Critical
Publication of EP1307648B1 publication Critical patent/EP1307648B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
    • F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
    • F02M51/0664—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
    • F02M51/0671—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached 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
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
    • F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
    • F02M51/0664—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
    • F02M51/0685—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature and the valve being allowed to move relatively to each other or not being attached to each other
    • 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
    • F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
    • F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-valve type
    • F02M61/12—Other injectors with elongated valve bodies, i.e. of needle-valve type characterised by the provision of guiding or centring means for 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
    • 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
    • F02M61/165—Filtering elements specially adapted in fuel inlets to injector
    • 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
    • Y10S239/00—Fluid sprinkling, spraying, and diffusing
    • Y10S239/90—Electromagnetically actuated fuel injector having ball and seat type valve

Definitions

  • the invention is based on a fuel injection valve according to the preamble of the main claim, as example, from the Publication DE 198 49 210 A known.
  • the armature Upon energizing the solenoid the armature is tightened in the stroke direction and takes over the first stop the valve needle with.
  • the valve needle by means the first return spring in its closed position accelerates and leads over the described stop the Anchor with.
  • the closing movement of the valve needle is abrupt completed.
  • the movement of the valve needle is not rigid Connected anchor continues opposite to the stroke direction and is caught by the second return spring, d. H. the anchor swings against the first one Return spring a much lower spring constant having the second return spring.
  • the second Return spring accelerates the anchor again in Stroke direction.
  • a disadvantage of the known from DE-OS 33 14 899 Fuel injector is the one incomplete Entprellung, on the other hand, it may be due to the arrangement of Anchor and valve needle for jamming or jamming come through center offset of the valve needle or the anchor. This is due to manufacturing defects in the individual Reinforced components of the fuel injection valve and This leads to malfunctions of the Fuel injector.
  • the anchor is not rigid with the Valve needle to connect, but the anchor a certain allow axial movement play on the valve needle.
  • U.S. Patent 5,299,776 Fuel injector is, however, with a so-called.
  • Flat anchor provided, which is not performed in the valve body is, but moves freely to the inner pole of the coil.
  • the valve needle has only one guide sleeve, on which is supported by the return spring.
  • As lower Guide unit serves a connected to the valve body Guide body, although enclosing the valve needle, with this is not connected non-positively.
  • the fuel injection valve according to the invention Characteristic features of claim 1 has the other hand the advantage of that through the two guide sleeves as well caused by the central recess of the anchor radial and axial play of the valve needle for a so much Freedom of movement allows tilting to become impossible and on the other the individual components of the Fuel injection valve with low production costs for example, through low production costs Deep drawing can be made as the tolerance of inventive design against manufacturing errors the components is very high.
  • Another advantage is the wedge-shaped or spherical Execution of the guide sleeves or the corresponding Elevations of the anchor end faces, which angle error of the Valve needle relative to the longitudinal axis of Fuel injector compensates.
  • valve needle in the sealing seat advantageous because the valve needle thereby even with large center offsets always optimally align.
  • a fuel injection valve 1 is in the form of a Fuel injection valve for fuel injection systems of mixture-compacting, externally ignited Internal combustion engine running.
  • the Fuel injection valve 1 is particularly suitable for direct injection of fuel into one illustrated combustion chamber of an internal combustion engine.
  • the fuel injection valve 1 consists of a Nozzle body 2, in which a valve needle 3 is guided.
  • the valve needle 3 is in operative connection with a Valve closing body 4, with one on one Valve seat body 5 arranged valve seat surface 6 to a Tight fit together.
  • the fuel injection zventil 1 is it in the exemplary embodiment to an inward opening fuel injection valve 1, which via a Spray opening 7 has.
  • the valve needle 3 is rotatably mounted in the sealing seat to a to allow easy needle guidance.
  • the twist preparation of the fuel injection valve 1 is not influenced, since the valve needle 3 rotationally symmetrical is executed.
  • the nozzle body 2 is by a seal 8 against the Outer pole 9 of a magnetic coil 10 sealed.
  • the magnetic coil 10 is encapsulated in a coil housing 11 and on a Coil wound 12, which at an inner pole 13 of Magnetic coil 10 is applied.
  • the inner pole 13 and the outer pole 9 are separated and supported by a gap 26 on a connecting member 29 from.
  • the magnetic coil 10th is via a line 19 of a via an electrical Plug contact 17 energized electrical power.
  • Of the Plug contact 17 is of a plastic casing 18th surrounded, which can be molded on the inner pole 13.
  • the valve needle 3 is in a valve needle guide fourteenth guided, which is designed disk-shaped. to Stroke adjustment is a paired shim 15.
  • An the other side of the dial 15 is a Anchor 20.
  • This is about a first guide sleeve 35th non-positively connected to the valve needle 3 in conjunction, which by a weld 22 with the first guide sleeve 35th connected is.
  • On the first guide sleeve 35 is supported a return spring 23 from which in the present Design of the fuel injection valve 1 by a sleeve 24th is brought to bias.
  • a second guide sleeve 36 which with the valve needle 3 via a weld 33rd connected, serves as a lower anchor stop.
  • the armature 20 has a central recess 34, through which protrudes the valve needle 3.
  • the radial Diameter of the central recess 34 is larger than that Diameter of the valve needle 3, so that the armature 20 a having radial clearance relative to the valve needle 3.
  • the armature 20 and the Valve seat body 5 extend fuel channels 30a to 30c, the fuel, which has a central Fuel supply 16 supplied and through a filter element 25th is filtered, lead to the spray opening 7.
  • the Fuel injection valve 1 is opposed by a seal 28 a not shown cylinder head or a Fuel distribution line sealed.
  • Fig. 2 shows an abstract, highly schematic Representation of the designated in Fig. 1 with II area.
  • the armature 20 is arranged between the first guide sleeve 35, on which the Restoring spring 23 is supported, and the second guide sleeve 36th.
  • the central recess 34 of the armature 20 whose diameter is slightly larger than the diameter of the armature 20 by cross-valve needle 3 is selected, is a radial play of the armature 20th ensured. Since between the first end face 37 of the Anchor 20 and the first guide sleeve 35, a first gap 43 and between the second end face 38 of the armature 20th and the second guide sleeve 36, a second gap 44th is formed, is also a slight axial play available.
  • the armature 20 is only by the im present first embodiment sleeve-shaped formed disorderpol 9_des fuel injection valve. 1 accurately and precisely guided.
  • the reference numeral 9th characterized sleeve-shaped member may also be a non-magnetic thin-walled sleeve as part of Valve housing act.
  • the guide sleeves 35 and 36 are in turn in the inner pole 13 and in the nozzle body 2 of the fuel injection valve. 1 each with a minor game.
  • the Guide sleeves 35 and 36 are fixed to the valve needle 3 connected, preferably welded. This will ensured that on the one hand the rotational symmetry of the Valve needle 3 is maintained as well as a flawless Guide the valve needle 3 and the armature 20 even at high Center offset or large manufacturing inaccuracies of used parts is guaranteed.
  • the armature 20 receives the force of the return spring 23 via the first guide sleeve 35, the valve needle 3, whereby the Fuel injection valve 1 is opened. Being between the first guide sleeve 35 and the armature 20 of the first gap 43, the armature 20 is first due to the magnetic field saundt, before the magnetic field when tightening the Ankers 20 lifting against the force of the return spring 23 must do. As a result, besides ensuring the freely movable armature 20 and the tilt-free Operation of the valve needle 3 and the opening times of the Fuel injection valve 1 can be improved.
  • Fig. 3 shows in the same view as Fig. 2, a second Embodiment of the invention Fuel injection valve 1.
  • the End faces 37 and 38 of the armature 20 facing surfaces 39th and 40 of the guide sleeves 35 and 35 are splined or conical formed.
  • corresponding stop areas to the wedged surfaces 39 and 40 of the guide sleeves 35 and 36th serve surveys 41 and 42, which at the end faces 37 and 38 of the armature 20 are rotationally symmetrical and For example, frustoconical or spherical or dome-shaped.
  • the surveys 41 and 42 thus formed are wedged Surfaces 39 and 40 dappled and thus ensure a more accurate Guiding the valve needle 3 in the guide sleeves 35 and 36, without the free movement of the armature 20 and the Restrict rotational symmetry of the valve needle 3.
  • the invention is not limited to those shown Embodiments limited and also for a variety other, especially for outward opening Fuel injectors applicable.

Landscapes

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

Claims (14)

  1. Injecteur de carburant (1) pour des installations d'injection de carburant dans des moteurs à combustion interne, comportant une bobine d'électroaimant (10), une aiguille de soupape (3) actionnée en direction de fermeture par un ressort de rappel (23) et destinée à actionner un obturateur de soupape (4) qui forme un siège d'étanchéité conjointement avec une surface de siège de soupape (6), un induit (20) relié par liaison de forces à l'aiguille de soupape (3) et un premier manchon de guidage (35) relié à l'aiguille de soupape (3),
    caractérisé en ce que
    l'aiguille de soupape (3) est reliée par liaison de forces à un deuxième manchon de guidage (36), l'induit (20) étant disposé pour exécuter librement des mouvements axiaux entre le premier manchon de guidage (35) et le deuxième manchon de guidage (36), et
    l'induit comporte une cavité (34) centrale dont le diamètre est supérieur au diamètre de l'aiguille de soupape (3) de sorte que l'induit (20) a par rapport à l'aiguille de soupape (3), un jeu radial qui garantit une liberté de mouvement empêchant tout blocage.
  2. Injecteur de carburant selon la revendication 1,
    caractérisé en ce que
    le premier manchon de guidage (35) est disposé sur le côté frontal (37) - côté entrée - de l'induit (20) et le deuxième manchon de guidage (36) sur le côté frontal (38) - côté sortie - de l'induit (20).
  3. Injecteur de carburant selon la revendication 1 ou 2,
    caractérisé en ce que
    le premier manchon de guidage (35) et le deuxième manchon de guidage (36) sont soudés à l'aiguille de soupape (3).
  4. Injecteur de carburant selon l'une des revendications 1 à 3,
    caractérisé en ce que
    le ressort de rappel (23) s'appuie sur le premier manchon de guidage (35).
  5. Injecteur de carburant selon l'une des revendications 1 à 4,
    caractérisé en ce que
    l'aiguille de soupape (3) traverse l'induit (20) dans la cavité (34) centrale.
  6. Injecteur de carburant selon l'une des revendications 1 à 5,
    caractérisé en ce que
    l'aiguille de soupape (3) est montée de façon à tourner dans le siège d'étanchéité.
  7. Injecteur de carburant selon la revendication 6,
    caractérisé en ce que
    l'aiguille de soupape (3) a une symétrie de rotation.
  8. Injecteur de carburant selon l'une des revendications 1 à 7,
    caractérisé en ce qu'
    un premier intervalle (43) est formé entre le côté frontal (37) - côté entrée - de l'induit (20) et le premier manchon de guidage (35).
  9. Injecteur de carburant selon la revendication 8,
    caractérisé en ce qu'
    un deuxième intervalle (44) est formé entre le côté frontal (38) - côté sortie - de l'induit (20) et le deuxième manchon de guidage (36).
  10. Injecteur de carburant selon l'une des revendications précédentes,
    caractérisé en ce que
    les manchons de guidage (35, 36) comportent chacun une surface (39, 40) en coin.
  11. Injecteur de carburant selon la revendication 10,
    caractérisé en ce que
    chacune des surfaces (39, 40) en coin est tournée vers l'induit (20).
  12. Injecteur de carburant selon la revendication 11,
    caractérisé en ce qu'
    un premier bossage (41) en coin sur le côté frontal (37) - côté entrée - de l'induit (20) correspond à la surface (39) en coin du premier manchon de guidage (35).
  13. Injecteur de carburant selon la revendication 11 ou 12,
    caractérisé en ce qu'
    un second bossage (42) en coin sur le côté frontal (38) - côté sortie - de l'induit (20) correspond à la surface (40) en coin du second manchon de guidage (36).
  14. Injecteur de carburant selon la revendication 11,
    caractérisé en ce que
    l'induit (20) présente des bossages (41, 42) bombés ou en forme de calotte.
EP01962561A 2000-07-28 2001-07-18 Soupape d'injection de carburant Expired - Lifetime EP1307648B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10036811A DE10036811A1 (de) 2000-07-28 2000-07-28 Brennstoffeinspritzventil
DE10036811 2000-07-28
PCT/DE2001/002700 WO2002010584A1 (fr) 2000-07-28 2001-07-18 Soupape d'injection de carburant

Publications (2)

Publication Number Publication Date
EP1307648A1 EP1307648A1 (fr) 2003-05-07
EP1307648B1 true EP1307648B1 (fr) 2005-12-28

Family

ID=7650539

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01962561A Expired - Lifetime EP1307648B1 (fr) 2000-07-28 2001-07-18 Soupape d'injection de carburant

Country Status (5)

Country Link
US (1) US6824084B2 (fr)
EP (1) EP1307648B1 (fr)
JP (1) JP2004505205A (fr)
DE (2) DE10036811A1 (fr)
WO (1) WO2002010584A1 (fr)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10256662A1 (de) * 2002-12-04 2004-06-17 Robert Bosch Gmbh Brennstoffeinspritzventil
JP2006097659A (ja) * 2004-09-30 2006-04-13 Nippon Soken Inc 燃料噴射弁
US7472844B2 (en) * 2005-12-21 2009-01-06 Caterpillar Inc. Fuel injector nozzle with tip alignment apparatus
US8387599B2 (en) 2008-01-07 2013-03-05 Mcalister Technologies, Llc Methods and systems for reducing the formation of oxides of nitrogen during combustion in engines
US8561598B2 (en) * 2008-01-07 2013-10-22 Mcalister Technologies, Llc Method and system of thermochemical regeneration to provide oxygenated fuel, for example, with fuel-cooled fuel injectors
JP4935882B2 (ja) * 2009-03-05 2012-05-23 株式会社デンソー 燃料噴射弁
JP5520751B2 (ja) * 2010-08-31 2014-06-11 日立オートモティブシステムズ株式会社 燃料噴射弁
EP2852753B1 (fr) * 2012-05-08 2019-07-17 CPT Group GmbH Boîtier de soupape destiné à une soupape d'injection et soupape d'injection
DE102012215779A1 (de) * 2012-09-06 2014-03-06 Robert Bosch Gmbh Einspritzventil
JP6253259B2 (ja) 2012-09-26 2017-12-27 株式会社デンソー 燃料噴射弁
US9115325B2 (en) 2012-11-12 2015-08-25 Mcalister Technologies, Llc Systems and methods for utilizing alcohol fuels
JP5994642B2 (ja) * 2013-01-07 2016-09-21 マツダ株式会社 直噴エンジンの燃料噴射装置
DE102013214951A1 (de) * 2013-07-31 2015-02-05 Robert Bosch Gmbh Magnetbaugruppe für ein Ventil sowie Ventil
DE102013223458A1 (de) 2013-11-18 2015-05-21 Robert Bosch Gmbh Ventil zum Zumessen von Fluid
JP6187422B2 (ja) 2014-09-17 2017-08-30 株式会社デンソー 燃料噴射弁
US20170254304A1 (en) * 2014-09-17 2017-09-07 Denso Corporation Fuel injection valve
JP6468109B2 (ja) * 2015-07-21 2019-02-13 株式会社デンソー 燃料噴射弁
DE102015214171A1 (de) * 2015-07-27 2017-02-02 Robert Bosch Gmbh Ventil zum Zumessen eines Fluids
JP6175475B2 (ja) * 2015-11-20 2017-08-02 株式会社ケーヒン 電磁式燃料噴射弁
EP3260695B8 (fr) * 2016-06-24 2019-07-17 CPT Group GmbH Ensemble de soupape pour soupape d'injection et soupape d'injection

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2651744A (en) * 1949-02-02 1953-09-08 Mcquaynorris Mfg Company Control device
DE3314899A1 (de) 1983-04-25 1984-10-25 Mesenich, Gerhard, Dipl.-Ing., 4630 Bochum Federanordnung mit zusatzmasse zur verbesserung des dynamischen verhaltens von elektromagnetsystemen
DE3408012A1 (de) * 1984-03-05 1985-09-05 Gerhard Dipl.-Ing. Warren Mich. Mesenich Elektromagnetisches einspritzventil
DE3808671A1 (de) * 1987-03-13 1988-09-22 Orbital Eng Pty Vorrichtung und verfahren zur kraftstoffeinspritzung
JP2757317B2 (ja) * 1989-11-09 1998-05-25 ヤマハ発動機株式会社 高圧燃料噴射装置
US5299776A (en) 1993-03-26 1994-04-05 Siemens Automotive L.P. Impact dampened armature and needle valve assembly
US5661895A (en) * 1995-07-25 1997-09-02 Outboard Marine Corporatin Method of controlling the magnetic gap length and the initial stroke length of a pressure surge fuel pump
DE19849210A1 (de) * 1998-10-26 2000-04-27 Bosch Gmbh Robert Brennstoffeinspritzventil

Also Published As

Publication number Publication date
DE10036811A1 (de) 2002-02-07
US20030047626A1 (en) 2003-03-13
US6824084B2 (en) 2004-11-30
DE50108563D1 (de) 2006-02-02
EP1307648A1 (fr) 2003-05-07
WO2002010584A1 (fr) 2002-02-07
JP2004505205A (ja) 2004-02-19

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