WO2001079689A2 - Einspritzventil mit optimierter flächengeometrie zwischen einem düsenkörper und einer spannmutter - Google Patents
Einspritzventil mit optimierter flächengeometrie zwischen einem düsenkörper und einer spannmutter Download PDFInfo
- Publication number
- WO2001079689A2 WO2001079689A2 PCT/DE2001/001430 DE0101430W WO0179689A2 WO 2001079689 A2 WO2001079689 A2 WO 2001079689A2 DE 0101430 W DE0101430 W DE 0101430W WO 0179689 A2 WO0179689 A2 WO 0179689A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- contact surface
- injection valve
- nozzle body
- clamping nut
- housing
- Prior art date
Links
- 238000002347 injection Methods 0.000 title claims abstract description 41
- 239000007924 injection Substances 0.000 title claims abstract description 41
- 230000005540 biological transmission Effects 0.000 claims description 32
- 230000013011 mating Effects 0.000 abstract 1
- 239000000446 fuel Substances 0.000 description 8
- 238000007789 sealing Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000007704 transition Effects 0.000 description 2
- 230000006978 adaptation Effects 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
- 230000000694 effects Effects 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
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
- F02M61/04—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
-
- 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
-
- 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
-
- 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
- F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting
-
- 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
-
- 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
- F02M2200/40—Fuel-injection apparatus with fuel accumulators, e.g. a fuel injector having an integrated fuel accumulator
Definitions
- Injection valve with optimized surface geometry between a nozzle body and a clamping nut
- the invention relates to an injection valve according to the preamble of patent claim 1.
- Injection valves usually have a valve housing in which, for example, an actuator for controlling a servo valve is provided.
- the servo valve sets a pressure in a control room.
- the injection valve has a nozzle body which has a sealing seat and injection holes. A recess is made in the nozzle body, in which a nozzle needle is guided. The nozzle needle is moved depending on the pressure in the control room.
- the recess has a pressure chamber which is connected to a fuel line of the housing. Since a fuel with high pressure is carried in the fuel line, particularly in the case of diesel injection valves, there is a sealing point between the housing and the nozzle body. The sealing point is preferably sealed by pressing the nozzle body against the housing.
- a clamping nut is provided which is connected to a thread of the housing and which prestresses the nozzle body against the housing. Preloading the nozzle body requires large pretensioning forces, particularly when the fuel pressure is high. The preload force must be transferred from the clamping nut to the nozzle body using an optimized geometry. For this purpose, it is known to form a contact surface on the nozzle body which is conical and tapers in the direction of the tip of the nozzle body.
- the clamping nut has a conical contact surface that tapers towards the tip of the nozzle body. Between the contact surface of the nozzle body and the contact surface of the clamping nut has a defined differential angle to ensure a defined surface pressure. With a very large prestressing force, it has been shown that the force effect perpendicular to the longitudinal direction of the nozzle body becomes relatively large and thus produces an expansion of the clamping nut in the radial direction. As a result, the clamping nut can be damaged.
- the object of the invention is to provide an injection valve in which an optimized transmission of the pretensioning force to the nozzle body is achieved.
- the injection valve according to claim 1 has an optimized power transmission between the clamping nut and the nozzle body.
- the optimized power transmission is achieved by increasing the area with which the clamping nut rests on the nozzle body.
- the enlarged area is achieved by a curved shape, which is formed either on the clamping nut or on the nozzle body. Due to the curved shape, an annular surface contact is ensured instead of a line contact between the nozzle body and the clamping nut.
- the injection valve according to claim 8 has the advantage that the force for prestressing the nozzle body is transmitted via a transmission element.
- the transmission element enables a lower load on the clamping nut in the radial direction.
- the contact surface which lies on the curved contact surface, preferably has a conical surface.
- the conical surface is preferably arranged at an angle of 40 ° and 60 ° to the central axis of the injection valve. The pairing of the arched contact surface with the flat cone surface offers an inexpensive embodiment.
- the clamping nut has a concave partial spherical surface and the nozzle body has a convex surface. With this embodiment, an improved surface contact between the clamping nut and the nozzle body is achieved.
- the curved contact surface preferably has a convex surface
- the radius of the convex surface is preferably in the range from 20 to 60 mm.
- the curved surface is preferably arranged at the level of the pressure chamber, so that the line of action of the prestressing force passes through the pressure chamber. In this way, the pressure chamber is supported from the outside at the same time that the nozzle body is pressed against the housing, so that the nozzle body has a high compressive strength.
- Optimal pressure support for the pressure chamber is achieved by arranging the curved contact surface at the height of the center of the pressure chamber.
- the clamping nut preferably has a ring part which merges into a sleeve part.
- the sleeve part is arranged perpendicular to the longitudinal axis of the injection valve.
- a first contact surface is arranged on the ring part.
- a transmission is restriction member is provided which transmits the radial component * e of the biasing force of the nozzle body in an almost axial component, which engages the annular part.
- the transmission of the radial biasing force to the ring part of the clamping nut makes it possible to make the sleeve part relatively thin.
- a small diameter of the injection valve is made possible by a thin sleeve part.
- the cross-section of the transmission element preferably has the shape of a wedge with a third and fourth bearing surface, the third and fourth bearing surface being oriented at an angle of less than 90 ° to one another.
- the transmission element is preferably designed in the form of a ring, which enables a transmission of the pretensioning force which is distributed uniformly around the circumference of the nozzle body.
- the transmission element preferably bears on the ring part of the clamping nut, the surface pairing being arranged at an angle of approximately 90 ° to the central axis of the injection valve.
- a second surface pairing which is arranged between the transmission element and the nozzle body, has an angle of 20 to 40 ° with respect to the center axis of the injection valve.
- 1 shows a first embodiment with a transmission element
- Fig. 5 shows an embodiment with a partial spherical surface and a convex surface.
- FIG. 1 shows a partial cross section through an injection valve, in which part of a housing 2, part of a nozzle body. pers 3, part of a clamping nut 1 and the cross section through a transmission element 4 is shown.
- the cross section is arranged perpendicular to a center axis of symmetry 18 of the injection valve. All parts shown in the figures are rotationally symmetrical to the center symmetry axis 18.
- the nozzle body 3 has a first section 19 which is cylindrical and bears on the housing 2 with a pressure surface 20.
- the first section 19 merges via a second contact surface 10 into a second section 21, which is also cylindrical.
- the second section 20 has a smaller diameter than the first section 19.
- the nozzle body 3 has a recess 23 which is arranged symmetrically with respect to the central axis 18 and has an extension which represents a pressure chamber 5.
- the recess 23 serves as a fuel storage.
- a nozzle needle is introduced in the recess 23 and is assigned at its tip to a sealing seat in the nozzle body.
- the nozzle needle 6 is guided in the recess 23 in the region of the first section 19.
- 3 injection holes are made in the nozzle body, which are connected to the pressure chamber 5 and are arranged below the sealing seat. If the nozzle needle 6 now lies against the sealing seat, there is no connection between the pressure chamber 5 and the injection holes. If the nozzle needle is lifted from the sealing seat, the fuel present in the pressure chamber 5 can pass the nozzle needle 6 laterally to the injection holes and an injection takes place.
- the second contact surface 10 is designed as a conical surface which tapers from the first section 19 in the direction of the second section 21.
- the second contact surface 10 preferably has a third angle c to the center symmetry axis 18.
- the third angle c is in the range from 10 ° to 70 °, preferably between 40 ° to 60 °.
- the nozzle body 3 is encompassed by a clamping nut 1 which has an annular part 8 which merges into a sleeve part 7.
- the ring part 8 is arranged in the region of the second section 21.
- the sleeve part 7 is guided along the second contact surface 10 and the first section 19 to the housing 2.
- the sleeve part 7 is screwed to the housing 2 via a thread 14.
- the ring part 8 has a first contact surface 9, which is arranged at a second angle b to the center symmetry axis 18.
- the second angle b is preferably in the range of 90 °.
- the first contact surface 9 faces the second contact surface 10.
- the transmission element 4 is arranged, which is preferably designed in the form of a ring.
- the cross section of the transmission element 4 is essentially triangular, a third contact surface 11 of the transmission element 4 being assigned to the first contact surface 9 and a fourth contact surface 12 of the transmission element 4 being assigned to the second contact surface 10.
- the transmission element 4 has an outer surface 22 which essentially represents a cylindrical surface which is arranged essentially parallel to the inner surface of the sleeve part 7.
- a defined gap 13 is provided between the outer surface 22 of the transmission element 4 and the inner surface of the sleeve part 7.
- the first and third contact surfaces 9, 11 and the second and fourth contact surfaces 10, 12 represent a first and a second pair of surfaces, respectively.
- the first contact surface 9 is preferably almost parallel to the third contact surface 11 and the second contact surface 10 is almost parallel to the fourth Contact surface 12 arranged.
- a difference angle a is usually provided between the first and third contact surfaces 9, 11 and the second and fourth contact surfaces 10, 12.
- the transmission element 4 has a partially wedge-shaped inner recess in the form of a ring, which essentially corresponds to the cone shape of the second contact surface 10.
- the radius of the inner recess of the transmission element 4 is adapted to the cone shape of the second contact surface 10 in such a way that the entire fourth contact surface 12 of the transmission element 4 rests on the second contact surface 10 of the nozzle body 3.
- the clamping nut 1 is screwed to the housing 2 via the thread 14, so that the transmission element 4 is pressed by the first contact surface 9 in the direction of the first section 19.
- the fourth contact surface 12 of the transmission element 4 comes into contact with the second contact surface 10 of the nozzle body 3, a force being transmitted between the ring part 8 and the second contact surface 10.
- the defined gap 13 ensures that no radial forces are transmitted to the sleeve part 7 of the clamping nut 1. This allows the sleeve part 7 to be made relatively narrow, which enables an injection valve with a small cross section.
- the second contact surface 10 in the nozzle body 3 is preferably formed at the level at which a pressure chamber 5 is introduced in the nozzle body 3, so that the line of action of the prestressing force passes through the pressure chamber 5.
- the pressure chamber 5 is connected to the fuel line, so that fuel with high pressure is present in the pressure chamber 5.
- the nozzle body 3 has a small wall thickness in the region of the pressure chamber 5, so that it is advantageous if a prestressing force is exerted on the nozzle body 3 from the outside in the region of the pressure chamber 5, which force exerts pressure on the nozzle body 3 Counteracts pressure chamber 5. This pretensioning force is exerted on the nozzle body 3 by the transmission element 4.
- FIG. 2 shows a further embodiment, which enables an improved deflection of the pretensioning force from the clamping nut 1 onto the nozzle body 3.
- the second contact surface 10 has a convex curvature 24 in cross section.
- the curvature 24 represents a surface which is convex in cross section.
- the convex surface emerges continuously from the surface of the first section 19 and preferably merges into the second section 21 with an angle greater than 180 ° in a defined radius.
- the convex surface is rotationally symmetrical to the center symmetry axis 18.
- the radius of the convex surface is preferably in the range from 20 to 60 mm.
- the clamping nut 1 is screwed to the housing 2 via the thread 14 and prestresses the nozzle body 3 in the direction of the housing 2. For this purpose, a pretensioning force F is transmitted from the clamping nut 1 via the first contact surface 9 to the second contact surface 10 of the nozzle body 3.
- the first contact surface 9 is designed as a conical inner surface which tapers in the direction of the second section 21 of the nozzle body 3.
- the first contact surface 9 is preferably arranged at a fourth angle d with respect to the center symmetry axis 18.
- the fourth angle d is in the range from 10 ° to 70 °, preferably in the range from 40 ° to 60 °.
- the second contact surface 10 is assigned to the first contact surface 9 and lies directly against the first contact surface 9 in a support area 25.
- the support area 25 extends in the longitudinal direction of the nozzle body 3 over a certain length, so that a defined annular surface pressure between the clamping nut 1 and the nozzle body 3 is achieved.
- This surface pressure is achieved due to the curved shape of the second contact surface 10. Due to the convex shape of the second contact surface 10, it is not necessary to produce the first and the second contact surface 9, 10 with a precisely set differential angle. Larger angular ranges are sufficient for optimal surface pressure. This enables a simple and inexpensive manufacture of the injection valve.
- the convex surface 24 is formed on the second contact surface 10.
- the convex surface 24 can also be arranged on the first contact surface 9 of the clamping nut 1 and the second contact surface 10 can be designed in the form of a conical surface which tapers in the direction of the second section 21 of the nozzle body 3.
- the convex surface 24 of the nozzle body 3 is assigned a concave surface which is formed on the clamping nut 1. This embodiment offers very good surface contact. Smaller radii can also be used, which can be checked more easily during production.
- the nozzle body 3 is designed in accordance with the nozzle body 3 of FIG. 1.
- the same parts are provided with the same reference numerals.
- the clamping nut 1 merges from a ring part 8 in a transition region 26 into a sleeve part 7.
- the transition region is in the form of an inner cone surface 9, so that the wall of the clamping nut 1 on the ring part 8 to the sleeve part 7 is continuously reduced. Since the clamping nut 1 essentially has a sleeve shape, the diameter of the inner recess of the clamping nut 1 in the area of the ring part 8 has a smaller value than the diameter of the inner recess of the clamping nut 1 in the area of the sleeve part 7. In the inner recess of the clamping nut 1 the nozzle body 3 and the housing 2 are introduced.
- the dome-like shape of the first contact surface 9 and the convex surface of the second contact surface 10 enable an optimal adaptation, which allows the use of smaller radii for the first and second contact surfaces 9, 10.
- the smaller radii have the advantage that small radii can be checked and measured precisely. In this way, precise compliance with the specified radii during production is made possible.
- a major advantage of the concave partial spherical surface is that the partial spherical surface and the associated convex surface are easy to manufacture.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01933597A EP1280991B1 (de) | 2000-04-14 | 2001-04-11 | Einspritzventil mit optimierter flächengeometrie zwischen einem düsenkörper und einer spannmutter |
DE50114095T DE50114095D1 (de) | 2000-04-14 | 2001-04-11 | Einspritzventil mit optimierter flächengeometrie z |
US10/271,240 US6799748B2 (en) | 2000-04-14 | 2002-10-14 | Injection valve comprising an optimized surface geometry between a nozzle body and a retaining nut |
US10/854,832 US6938880B2 (en) | 2000-04-14 | 2004-05-27 | Injection valve comprising an optimized surface geometry between a nozzle body and a retaining nut |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10018663A DE10018663A1 (de) | 2000-04-14 | 2000-04-14 | Einspritzventil mit optimierter Flächengeometrie zwischen einem Düsenkörper und einer Spannmutter |
DE10018663.7 | 2000-04-14 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/271,240 Continuation US6799748B2 (en) | 2000-04-14 | 2002-10-14 | Injection valve comprising an optimized surface geometry between a nozzle body and a retaining nut |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2001079689A2 true WO2001079689A2 (de) | 2001-10-25 |
WO2001079689A3 WO2001079689A3 (de) | 2002-03-14 |
Family
ID=7638836
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2001/001430 WO2001079689A2 (de) | 2000-04-14 | 2001-04-11 | Einspritzventil mit optimierter flächengeometrie zwischen einem düsenkörper und einer spannmutter |
Country Status (5)
Country | Link |
---|---|
US (2) | US6799748B2 (de) |
EP (1) | EP1280991B1 (de) |
AT (1) | ATE400735T1 (de) |
DE (2) | DE10018663A1 (de) |
WO (1) | WO2001079689A2 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012217991A1 (de) * | 2012-10-02 | 2014-04-03 | Continental Automotive Gmbh | Düsenbaugruppe für einen Fluidinjektor und Fluidinjektor |
EP3032085A1 (de) * | 2014-12-09 | 2016-06-15 | Robert Bosch Gmbh | Kraftstoffinjektor |
WO2019179976A1 (de) * | 2018-03-23 | 2019-09-26 | Robert Bosch Gmbh | Kraftstoffinjektor |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10202722A1 (de) * | 2002-01-24 | 2003-11-27 | Siemens Ag | Düsenspannmutter für Einspritzventil sowie Verfahren zur Herstellung der Düsenspannmutter |
JP2006070827A (ja) * | 2004-09-02 | 2006-03-16 | Usui Kokusai Sangyo Kaisha Ltd | 高圧燃料噴射管およびその成形方法 |
US8925579B2 (en) | 2006-03-02 | 2015-01-06 | Pacific Bag, Inc. | Pressure relief valve |
US7299520B2 (en) * | 2006-03-24 | 2007-11-27 | Shih-Hsien Huang | Connecting device for a windshield wiper having no support frame and hook type windshield wiper arm |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19523243A1 (de) * | 1995-06-27 | 1997-01-02 | Bosch Gmbh Robert | Kraftstoffeinspritzventil für Brennkraftmaschinen |
EP0890734A2 (de) * | 1997-07-11 | 1999-01-13 | Robert Bosch Gmbh | Kraftstoffeinspritzventil |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES480129A1 (es) | 1978-07-01 | 1980-01-16 | Lucas Industries Ltd | Boquilla de inyeccion de combustible para motores de encen- dido por compresion. |
US4314670A (en) * | 1980-08-15 | 1982-02-09 | Walsh William A Jun | Variable gas atomization |
DE19508636A1 (de) | 1995-03-10 | 1996-09-12 | Bosch Gmbh Robert | Kraftstoffeinspritzventil für Brennkraftmaschinen |
GB9819746D0 (en) | 1998-09-11 | 1998-11-04 | Lucas Ind Plc | Fuel injector |
-
2000
- 2000-04-14 DE DE10018663A patent/DE10018663A1/de not_active Ceased
-
2001
- 2001-04-11 AT AT01933597T patent/ATE400735T1/de not_active IP Right Cessation
- 2001-04-11 WO PCT/DE2001/001430 patent/WO2001079689A2/de active IP Right Grant
- 2001-04-11 DE DE50114095T patent/DE50114095D1/de not_active Expired - Lifetime
- 2001-04-11 EP EP01933597A patent/EP1280991B1/de not_active Expired - Lifetime
-
2002
- 2002-10-14 US US10/271,240 patent/US6799748B2/en not_active Expired - Lifetime
-
2004
- 2004-05-27 US US10/854,832 patent/US6938880B2/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19523243A1 (de) * | 1995-06-27 | 1997-01-02 | Bosch Gmbh Robert | Kraftstoffeinspritzventil für Brennkraftmaschinen |
EP0890734A2 (de) * | 1997-07-11 | 1999-01-13 | Robert Bosch Gmbh | Kraftstoffeinspritzventil |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012217991A1 (de) * | 2012-10-02 | 2014-04-03 | Continental Automotive Gmbh | Düsenbaugruppe für einen Fluidinjektor und Fluidinjektor |
US10107246B2 (en) | 2012-10-02 | 2018-10-23 | Continental Automotive Gmbh | Nozzle assembly for a fluid injector and fluid injector |
EP3032085A1 (de) * | 2014-12-09 | 2016-06-15 | Robert Bosch Gmbh | Kraftstoffinjektor |
WO2019179976A1 (de) * | 2018-03-23 | 2019-09-26 | Robert Bosch Gmbh | Kraftstoffinjektor |
Also Published As
Publication number | Publication date |
---|---|
US20030085304A1 (en) | 2003-05-08 |
WO2001079689A3 (de) | 2002-03-14 |
ATE400735T1 (de) | 2008-07-15 |
DE50114095D1 (de) | 2008-08-21 |
DE10018663A1 (de) | 2001-10-25 |
US20040217321A1 (en) | 2004-11-04 |
EP1280991B1 (de) | 2008-07-09 |
US6799748B2 (en) | 2004-10-05 |
EP1280991A2 (de) | 2003-02-05 |
US6938880B2 (en) | 2005-09-06 |
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