EP1366286B1 - Brennstoffeinspritzventil - Google Patents
Brennstoffeinspritzventil Download PDFInfo
- Publication number
- EP1366286B1 EP1366286B1 EP02721981A EP02721981A EP1366286B1 EP 1366286 B1 EP1366286 B1 EP 1366286B1 EP 02721981 A EP02721981 A EP 02721981A EP 02721981 A EP02721981 A EP 02721981A EP 1366286 B1 EP1366286 B1 EP 1366286B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sealing ring
- fuel injection
- injection valve
- valve according
- fuel
- 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
Links
- 239000000446 fuel Substances 0.000 title claims description 53
- 238000002347 injection Methods 0.000 title claims description 41
- 239000007924 injection Substances 0.000 title claims description 41
- 238000007789 sealing Methods 0.000 claims description 72
- 238000002485 combustion reaction Methods 0.000 claims description 12
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical class [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000463 material Substances 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 239000004809 Teflon Substances 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000002996 emotional effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 229910001026 inconel Inorganic materials 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Images
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
- F02M61/14—Arrangements of injectors with respect to engines; Mounting of injectors
-
- 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/85—Mounting of fuel injection apparatus
- F02M2200/858—Mounting of fuel injection apparatus sealing arrangements between injector and engine
Definitions
- the invention is based on a fuel injection valve according to the preamble of claim 1.
- a electromagnetic fuel injection valve and one for suitable attachment structure known, with which for a Internal combustion engine with a cylinder injection system the Requirements for the sealing effect, the thermal Resistance and pressure resistance can be met. Special Care is taken to seal the area in directed in the immediate vicinity of the cylinder, in the attached the electromagnetic fuel injection valve is, as well as on a more distant area.
- a first Sealing section with a first sealing ring as corrugated bottom ring is executed, close in one place on the cylinder and between the fuel injector and the cylinder head is located.
- a second one Sealing section with a second sealing ring the also executed as a corrugated washer, on positioned in a position farther from the cylinder is considered the first sealing section.
- a disadvantage of the known from DE 196 00 403 A1 Fuel injection valve is in particular the high Production costs for the sealing rings.
- high Production costs for example, in the manufacture of the sealing rings silver-plated INCONEL or Teflon-coated Materials.
- a fuel injection valve is already known, the Injection of fuel into a combustion chamber of an internal combustion engine is used.
- the Fuel injector has a nozzle body as part of a valve housing, the its outer circumference is stepped and thereby in a step area one Sealing ring receives, which seals the fuel injection valve against a housing.
- the Sealing ring is U-shaped with its open side to the central axis of the sealing ring out designed directed and profiled radially outwardly convex curved.
- an additional spring element In the open Side of the sealing ring is inserted an additional spring element, the ⁇ -shaped is executed and with its open side opposite the sealing ring training is shaped.
- the spring element inside the sealing ring ensures that the sealing ring between the housing and the fuel injection valve is braced.
- the Design of this seal is alone because of the multiple parts of the arrangement relatively complex and difficult to assemble.
- a sealing ring is already known, in which ends of the Overlap sealing ring.
- the sealing ring is between two u.a. Oil leading Housing components of an automatic transmission used for a motor vehicle. Both components to be sealed is neither a fuel injector nor around a cylinder head of an internal combustion engine.
- the sealing ring has paraxial extending, vertical plane radial boundary surfaces, of which the radial outer surface rests against one of the housing components.
- the axial Boundary surfaces of the solid and convex cross-section sealing ring arched trained to each other in a relative movement of the housing components a certain "rolling" of the sealing ring on the radially extending boundary sides to allow a receiving groove.
- the fuel injection valve according to the invention with the Features of claim 1 has In contrast, the advantage that under a variable Radius of curvature shaped sealing ring cost-effective from a Copper-tin alloy can be produced, reusable as well easy to install.
- a particular advantage is that the sealing ring a Has overlap area, which by a detent of the Ends of the sealing ring in corresponding recesses one achieves space-saving and flexible shape of the sealing ring.
- the sealing ring inside and outside either under the same or under different Curvature radii be arched, creating a uniform Thickness of the sealing ring or one towards the edges tapered cross section can be achieved.
- the 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 injector 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 arranged.
- 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.
- 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 valve 1 is it in the exemplary embodiment to an inward opening fuel injection valve 1, which via a Spray opening 7 has.
- the nozzle body 2 is by a seal 8 against a Pole 9 of a magnetic coil 10 and by a sealing ring 34 against the in Fig. 1 not shown Cylinder head of the internal combustion engine sealed.
- a sealing ring 34 against the in Fig. 1 not shown Cylinder head of the internal combustion engine sealed.
- the Sealing ring 34 is according to the invention of a convex curved, at two ends 35 overlapping ring by punching and Rolls made of profiled strip material.
- a Detailed explanation of the sealing ring 34 is the Description of Figs. 2 to 4 can be seen.
- the magnetic coil 10 is encapsulated in a coil housing 11 and wound on a bobbin 12, which on a Inner pole 13 of the solenoid coil 10 is applied.
- the inner pole 13 and the outer pole 9 are separated by a gap 26 separated and are based on a connecting member 29th from.
- the solenoid 10 is connected via a line 19 of a via an electrical plug-in contact 17 can be fed electrical current.
- the plug contact 17 is of a Plastic casing 18 surrounded, the inner pole 13th can be injected.
- 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 flange 21st non-positively connected to the valve needle 3 in conjunction, which by a weld 22 with the first flange 21 connected is.
- On the first flange 21 is supported Return spring 23 from which in the present design of Fuel injection valve 1 by a sleeve 24 Bias is brought.
- a second flange 31st Downstream of the armature 20 is a second flange 31st arranged, which serves as a lower anchor stop. He is over a weld 33 frictionally with the valve needle. 3 connected. Between the armature 20 and the second flange 31 is an elastic intermediate ring 32 for damping Anchor bouncers when closing the fuel injector 1 arranged.
- 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 sealed a distribution line not shown.
- the armature 20 drops sufficient reduction of the magnetic field by the pressure of the Return spring 23 on the first flange 21 from the inner pole thirteenth from, causing the valve needle 3 against the stroke direction emotional. As a result, the valve closing body 4 is placed on the Valve seat surface 6, and the fuel injection valve. 1 will be closed. The armature 20 sits on the through the second flange 31 formed anchor stop.
- Fig. 2 shows in an excerpted sectional view of the in Fig. 1 with II designated section of the Inventively designed fuel injection valve. 1
- Matching components are in all figures with provided matching reference numerals.
- a part the cylinder head 36 of the internal combustion engine a part the cylinder head 36 of the internal combustion engine.
- the Sealing ring 34 is located in a groove-like recess 40 of the Nozzle body 2, that he the fuel injection valve 1 against seals the cylinder head 36 of the engine.
- the Seal 34 stands under a slight Pressing force, the above-mentioned convex Radius of curvature of the sealing ring 34 slightly flattened, thereby the sealing effect arises.
- the sealing ring 34 is with outer edges 41 in the circumferential recess 40th be spread.
- the production of the sealing ring 34 is preferably carried out by Punching out of profiled strip material and subsequent Roll.
- the sealing ring 34 thus formed has two ends 35 which are shaped so that they overlap axially and mesh in the circumferential direction. A possible form of Overlap is apparent from Fig. 4.
- the sealing ring 34 is preferably made of a copper-tin alloy or made of stainless steel.
- the material is also characterized by good corrosion resistance and good sliding properties.
- the former is indispensable for a long life of the sealing ring, the latter facilitates in particular the assembly and disassembly of the Fuel injection valve 1, without that the sealing ring 34th must be renewed each time, as with conventional Teflon seals is the case.
- the assembly of the sealing ring 34 requires no special Tool, because of the spring characteristics a simple Sliding on the nozzle body 2 and following Snap into the recess 40 is possible. This is going through allows the overlapping of the ends 35 of the sealing ring 34, by the sealing ring 34 is variable in diameter.
- the illustrated in Fig. 2 first embodiment of the Inventively designed sealing ring 34 has a same radius of curvature for an inside 38 as for an outer side 39 of the sealing ring 34. This means that the material of the sealing ring 34 in all places evenly is thick.
- Fig. 3 shows in a schematic Cutout illustrated second embodiment of a Inventively designed fuel injection valve. 1 a variable thickness of the sealing ring 34. This takes the Thickness of the material towards the edges 41 of the sealing ring 34 resulting in a larger radius of curvature of the inside 38 is achieved with respect to the outside 39.
- the way Resulting form is in this respect advantageous, as the Bearing surface in the recess 40 relative to the first Embodiment is lower and thereby on the one hand the Assembly simplified and on the other hand, the sealing effect is improved.
- FIG. 4 shows a schematic view of a sealing ring 34 according to FIG. 2 or FIG. 3 in the region of the overlap of the Ends 35.
- the sealing ring 34 is rotated by 90 ° compared to the views in FIGS. 2 and 3 shown.
- the sealing ring 34 As already mentioned above, an overlap area on, in which the ends 35 of the sealing ring 34th mesh.
- the overlap is characterized by an axial detent reached.
- recesses 42 which are the For example, halve the axial height of the sealing ring 34.
- At the Rolling of the sealing ring 34 is then one end 35 in the opposite recess 42 is inserted so that a stepped axial detent is achieved.
- sealing rings 34 are the same Size in different sized holes 3'7 used.
- the invention is not limited to those shown Embodiments limited and for others Cross-sectional shapes of sealing rings 34 and for any Designs of fuel injection valves 1, for example for fuel injectors 1 with connection to a Intake manifold or a common rail system, 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)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Description
- Fig. 1
- einen schematischen Schnitt durch ein erstes Ausführungsbeispiel eines erfindungsgemäß ausgestalteten Brennstoffeinspritzventils in einer Gesamtansicht,
- Fig. 2
- einen schematischen Ausschnitt im Bereich II in Fig. 1 aus dem erfindungsgemäß ausgestalteten Brennstoffeinspritzventil,
- Fig. 3
- einen schematischen Ausschnitt im gleichen Bereich wie in Fig. 2 aus einem zweiten Ausführungsbeispiel eines erfindungsgemäß ausgestalteten Brennstoffeinspritzventils, und
- Fig. 4
- eine schematische Ansicht eines Dichtrings gemäß Fig. 2 oder Fig. 3.
Claims (8)
- Brennstoffeinspritzventil (1), insbesondere zum direkten Einspritzen von Brennstoff in den Brennraum einer gemischverdichtenden, fremdgezündeten Brennkraftmaschine, mit einem aus einem Düsenkörper (2) gebildeten Ventilgehäuse und einem eine Mittelachse aufweisenden Dichtring (34), der das Brennstoffeinspritzventil (1) gegen einen Zylinderkopf (36) der Brennkraftmaschine abdichtet und der radial nach außen konvex gewölbt profiliert ist,
dadurch gekennzeichnet, dass der Dichtring (34) in Umfangsrichtung gegeneinander verlaufend zwei Enden (35) besitzt, die sich axial stufenförmig überlappen. - Brennstoffeinspritzventil nach Anspruch 1,
dadurch gekennzeichnet, daß jeweils ein Ende (35) des Dichtrings (34) in eine Aussparung (42) am anderen Ende (35) einrastbar ist. - Brennstoffeinspritzventil nach Anspruch 1 oder 2,
dadurch gekennzeichnet, daß ein Krümmungsradius des Dichtrings (34) einem Bohrungsradius einer Bohrung (37) des Zylinderkopfes (36) entspricht. - Brennstoffeinspritzventil nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, daß der Dichtring (34) aus einer Kupfer-Zinn-Legierung besteht. - Brennstoffeinspritzventil nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, daß der Dichtring (34) in einer nutähnlichen Ausnehmung (40) des Düsenkörpers (2) angeordnet ist. - Brennstoffeinspritzventil nach Anspruch 5,
dadurch gekennzeichnet, dass der Dichtring (34) ihn axial begrenzend äußere Kanten (41) aufweist, die an radial verlaufenden Begrenzungsseiten der Ausnehmung (40) anliegen. - Brennstoffeinspritzventil nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet, daß der Dichtring (34) an einer Innenseite (38) und an einer Außenseite (39) den gleichen Krümmungsradius aufweist. - Brennstoffeinspritzventil nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet, daß der Dichtring (34) an einer Innenseite (38) einen größeren Krümmungsradius aufweist als an einer Außenseite (39).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10109407 | 2001-02-28 | ||
DE10109407A DE10109407A1 (de) | 2001-02-28 | 2001-02-28 | Brennstoffeinspritzventil |
PCT/DE2002/000694 WO2002068814A1 (de) | 2001-02-28 | 2002-02-27 | Brennstoffeinspritzventil |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1366286A1 EP1366286A1 (de) | 2003-12-03 |
EP1366286B1 true EP1366286B1 (de) | 2005-12-21 |
Family
ID=7675650
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02721981A Expired - Lifetime EP1366286B1 (de) | 2001-02-28 | 2002-02-27 | Brennstoffeinspritzventil |
Country Status (7)
Country | Link |
---|---|
US (1) | US6921033B2 (de) |
EP (1) | EP1366286B1 (de) |
JP (1) | JP2004518862A (de) |
CN (1) | CN1457392A (de) |
CZ (1) | CZ20023491A3 (de) |
DE (2) | DE10109407A1 (de) |
WO (1) | WO2002068814A1 (de) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10321163B4 (de) * | 2003-05-12 | 2017-01-05 | Robert Bosch Gmbh | Verfahren zum Anbringen eines metallischen Dichtelements an einem Grundkörper eines Brennstoffeinspritzventils, sowie Brennstoffeinspritzventil |
DE10337892A1 (de) | 2003-08-18 | 2005-03-17 | Daimlerchrysler Ag | Brennstoffeinspritzventil |
DE10358913A1 (de) | 2003-12-16 | 2005-09-01 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
DE102005006818A1 (de) * | 2005-02-15 | 2006-08-17 | Volkswagen Mechatronic Gmbh & Co. Kg | Dichtungseinrichtung für einen Kraftstoffinjektor sowie Verfahren zum Abdichten |
US7513242B2 (en) * | 2007-05-03 | 2009-04-07 | Cummins Inc. | Fuel injector assembly with injector seal retention |
DE102007029152A1 (de) * | 2007-06-25 | 2009-01-08 | Robert Bosch Gmbh | Scheibenwischerantrieb |
JP2009191672A (ja) * | 2008-02-13 | 2009-08-27 | Mitsubishi Heavy Ind Ltd | 燃料噴射弁装置 |
US7942132B2 (en) | 2008-07-17 | 2011-05-17 | Robert Bosch Gmbh | In-line noise filtering device for fuel system |
DE102009000285A1 (de) * | 2009-01-19 | 2010-07-22 | Robert Bosch Gmbh | Kraftstoff-Injektor sowie Brennkraftmaschine mit Kraftstoff-Injektor |
DE102012202254A1 (de) * | 2012-02-15 | 2013-08-22 | Robert Bosch Gmbh | Brennstoffeinspritzventil |
JP5831510B2 (ja) | 2012-11-20 | 2015-12-09 | 株式会社デンソー | 燃料噴射弁および燃料噴射弁の取付方法 |
US9410520B2 (en) * | 2013-08-08 | 2016-08-09 | Cummins Inc. | Internal combustion engine including an injector combustion seal positioned between a fuel injector and an engine body |
US10036355B2 (en) | 2013-08-08 | 2018-07-31 | Cummins Inc. | Heat transferring fuel injector combustion seal with load bearing capability |
DE102019210906A1 (de) * | 2019-07-23 | 2021-01-28 | Robert Bosch Gmbh | Ventil zum Zumessen eines Fluids |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1392536A (en) * | 1919-04-05 | 1921-10-04 | C A Cooper | Piston-ring |
US1495909A (en) * | 1922-08-26 | 1924-05-27 | Anton M Kroczek | Piston ring |
US3097855A (en) * | 1959-06-26 | 1963-07-16 | George H Allen | Sealing arrangement |
US3655208A (en) * | 1970-04-13 | 1972-04-11 | Mc Donnell Douglas Corp | Split piston ring and method of manufacture |
US4528959A (en) * | 1984-01-23 | 1985-07-16 | Deere & Company | Seal for an internal combustion engine |
US4713867A (en) * | 1985-04-15 | 1987-12-22 | Duke Fox | Piston rings with a gap seal |
US5247918A (en) * | 1992-09-17 | 1993-09-28 | Siemens Automotive L.P. | Sealing a direct injection fuel injector to a combustion chamber |
US5289627A (en) * | 1992-12-18 | 1994-03-01 | Chrysler Corporation | Fuel injector assembly and calibration method |
JP3324887B2 (ja) | 1994-11-08 | 2002-09-17 | 本田技研工業株式会社 | 油圧シール装置 |
JPH08200182A (ja) | 1995-01-25 | 1996-08-06 | Zexel Corp | 電磁式燃料噴射弁およびその取付け構造 |
JPH09112697A (ja) * | 1995-10-17 | 1997-05-02 | Mitsubishi Electric Corp | シールリング |
US5779243A (en) | 1996-11-21 | 1998-07-14 | Delaware Capital Formation, Inc. | Piston ring set for reciprocating engines |
FR2762051B1 (fr) * | 1997-04-10 | 1999-05-21 | Peugeot | Dispositif de fixation d'un injecteur de carburant sur une culasse de moteur a combustion interne |
DE19739150A1 (de) * | 1997-09-06 | 1999-03-11 | Bosch Gmbh Robert | Brennstoffeinspritzventil |
JPH11210886A (ja) | 1998-01-23 | 1999-08-03 | Nok Corp | ガスケット |
DE19808068A1 (de) * | 1998-02-26 | 1999-09-02 | Bosch Gmbh Robert | Brennstoffeinspritzventil |
-
2001
- 2001-02-28 DE DE10109407A patent/DE10109407A1/de not_active Withdrawn
-
2002
- 2002-02-27 WO PCT/DE2002/000694 patent/WO2002068814A1/de active IP Right Grant
- 2002-02-27 CN CN02800450A patent/CN1457392A/zh active Pending
- 2002-02-27 US US10/275,024 patent/US6921033B2/en not_active Expired - Fee Related
- 2002-02-27 EP EP02721981A patent/EP1366286B1/de not_active Expired - Lifetime
- 2002-02-27 DE DE50205341T patent/DE50205341D1/de not_active Expired - Lifetime
- 2002-02-27 JP JP2002567694A patent/JP2004518862A/ja not_active Withdrawn
- 2002-02-27 CZ CZ20023491A patent/CZ20023491A3/cs unknown
Also Published As
Publication number | Publication date |
---|---|
US6921033B2 (en) | 2005-07-26 |
CZ20023491A3 (en) | 2004-05-12 |
EP1366286A1 (de) | 2003-12-03 |
DE50205341D1 (de) | 2006-01-26 |
US20030155446A1 (en) | 2003-08-21 |
DE10109407A1 (de) | 2002-09-05 |
WO2002068814A1 (de) | 2002-09-06 |
CN1457392A (zh) | 2003-11-19 |
JP2004518862A (ja) | 2004-06-24 |
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