WO2005070579A2 - Conduite de stockage haute pression comportant une enveloppe exterieure constituee d'un materiau de moulage pour rampe commune - Google Patents

Conduite de stockage haute pression comportant une enveloppe exterieure constituee d'un materiau de moulage pour rampe commune Download PDF

Info

Publication number
WO2005070579A2
WO2005070579A2 PCT/EP2005/050311 EP2005050311W WO2005070579A2 WO 2005070579 A2 WO2005070579 A2 WO 2005070579A2 EP 2005050311 W EP2005050311 W EP 2005050311W WO 2005070579 A2 WO2005070579 A2 WO 2005070579A2
Authority
WO
WIPO (PCT)
Prior art keywords
line
tube
outer jacket
parts
pipe
Prior art date
Application number
PCT/EP2005/050311
Other languages
German (de)
English (en)
Other versions
WO2005070579A3 (fr
Inventor
Matthias Stark
Original Assignee
Schmitter Group Ag
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 Schmitter Group Ag filed Critical Schmitter Group Ag
Priority to EP05716595A priority Critical patent/EP1709320A2/fr
Publication of WO2005070579A2 publication Critical patent/WO2005070579A2/fr
Publication of WO2005070579A3 publication Critical patent/WO2005070579A3/fr

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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
    • F02M55/025—Common rails
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/154—Making multi-wall tubes

Definitions

  • the invention relates to a line for the storage of high-pressure fuels, oil or other liquids, for use in a common rail fuel injection system, which consist of one or more inner tube parts and a tubular outer jacket, the outer jacket by casting around the inner tube parts is formed and to a method for producing such a line, according to independent claims 1 and 13.
  • Common rail fuel injection systems are injection systems for internal combustion engines in which an uncontrolled high-pressure pump brings the fuel to a high pressure level.
  • the fuel pressurized in this way fills a pipeline system that is under constant pressure when the engine is operating.
  • All cylinders of the engine are supplied with fuel from this common pipeline system, the injection being implemented by electronic control of the valves assigned to the respective cylinder.
  • each cylinder is connected directly to a piston of the pump, so that there is no connection between the individual cylinder fuel supply lines.
  • the injection into the cylinders is controlled by the piston of the injection pump assigned to the cylinder, which builds up pressure in the line, through which the valve is opened and the fuel is injected.
  • DE 101 40 058 A1 discloses a high-pressure fuel reservoir for a common rail fuel injection system, which is produced in one piece from a high-strength cast material. By manufacturing in the casting process, this high-pressure fuel accumulator can be produced in a favorable manner and with a variable design of the interior.
  • a high-strength casting material with sufficient wall thickness which is relatively cost-intensive, has to be used to control the high pressures occurring and the extreme pressure fluctuations.
  • the spheroidal graphite cast iron used in accordance with DE 101 40 058 A1 like all cast iron, exhibits brittle deformation behavior, that is to say that no plastic deformation to a large extent is possible. Deformations beyond the elastic load capacity limit lead to cracks in brittle materials, which can lead to leaks or complete component failure.
  • the object of the invention is to provide a high-pressure fuel reservoir available, which shows a favorable behavior at high pressures and extreme pressure fluctuations and at the same time is easy and inexpensive to manufacture.
  • This object is achieved by a high-pressure fuel accumulator according to claim 1.
  • Further advantageous, optional embodiments and properties of the invention result from the dependent claims.
  • a method for producing a high-pressure fuel accumulator according to the invention is specified in claim 17 and optionally in the following dependent claims.
  • a high-pressure fuel accumulator according to the invention for a common rail fuel injection system is realized by enclosing one or more inner tubes with an outer tube, the outer tube being cast or extrusion-coated around the inner tube by means of a castable or injectable material will be produced.
  • This design of the high-pressure fuel reservoir surprisingly allows positive features of the different materials used for the individual components to be advantageously combined.
  • a material with high strength can be used as the inner tube, which is also particularly suitable for absorbing high pressures and strong pressure fluctuations due to its elastic and / or plastic deformation behavior.
  • Steel or stainless steel pipes, for example are suitable for this purpose, and their strength and rigidity can be improved by special processing steps such as forging and / or cold forming.
  • part of the required strength can be obtained from the simple and inexpensive cast material with which the inner tube according to the invention is cast or extrusion-coated.
  • the inner tube part (s) can be used to provide sufficient elastic longitudinal and transverse extensibility with the appropriate choice of material. The wall stability and thus the technical reliability are increased.
  • a high-pressure fuel accumulator for use in a common rail fuel injection system is made of a material that can dissipate the heat generated by the compression of the fuel in the accumulator as well as possible. It is therefore advantageous to manufacture the high-pressure fuel accumulator according to the invention from materials with good thermal conductivity.
  • the multi-part high-pressure fuel accumulator For the manufacture of the multi-part high-pressure fuel accumulator according to the invention, metallic materials, which are known to have good thermal conductivity, are therefore special Suitable dimensions.
  • the inner tube (s) of the high-pressure fuel accumulator is manufactured, for example, from steel and a cast iron is cast around the same tube, the close connection between the cast outer jacket and the inner tube part (s) that is produced during casting can optimally dissipate the heat generated without insulating cavities be guaranteed.
  • steel By using steel as the material for the inner tube or tubes of the high-pressure fuel reservoir according to the invention, a high pressure resistance can also be achieved. Since local stress peaks can occur in the inner tube due to the geometry, the use of steel offers further advantages.
  • the wall thickness ratio can vary in the course of the inner tube longitudinal axis in order to adjust the strength and the elastic or plastic properties to different requirements.
  • Such favorable properties of the inner tube can be further increased with the same diameter of the tube wall by using high-strength steels, for example stainless steels, without changing the dimensions of the high-pressure fuel reservoir.
  • high-strength steels for example stainless steels
  • the high-pressure fuel reservoir according to the invention can be adapted to changing requirements with regard to pressure resistance without changing the geometry.
  • High-pressure fuel accumulator according to the invention, however, other materials for the High-pressure fuel accumulator according to the invention are used.
  • high-strength components can also be produced from glass, since glass is very brittle, but has high strength and has the advantage of being very tight against liquids and gases. Very good strength properties can be achieved, particularly in the case of composite materials with glass.
  • Materials with ceramics are another alternative. Since glass and ceramic materials also have good thermal conductivity, these materials can advantageously be used for a high-pressure fuel reservoir according to the invention.
  • plastics and plastic composite materials are also possible.
  • the maximum temperature of a common rail high-pressure fuel accumulator is limited by the permissible maximum temperature of the fuel during injection, the use of plastics is not faced with a fundamental problem in terms of material technology.
  • the material parameters of a plastic can be set very well using modern plastics processing methods, an advantageous alternative in the field of materials technology for the high-pressure fuel reservoir according to the invention can be realized by using plastics. Thanks to their favorable strength / weight ratio, plastic materials are particularly suitable as a material for the cast outer jacket.
  • the outer jacket of the accumulator is formed in several layers. Due to the production of the outer jacket in layers, suitable materials and / or material qualities can be used for different stress areas, as a result of which the high-pressure fuel accumulator according to the invention can be adapted even more precisely to the requirements and stresses. In this way, the profitability of the product can be further optimized. For example, in the case of a two-layer outer jacket made of gray cast iron, casting materials with different strengths can be used in the two layers. It would be conceivable, for. B. also the use of a fiber composite material for a layer to cover particular stress peaks.
  • a high-pressure fuel accumulator according to the invention can be used particularly advantageously in an arrangement as close as possible to the cylinders which are to be supplied with fuel by the injection system. It is therefore advantageous if outlets for the feed lines to the cylinder valves are already provided in the high-pressure fuel accumulator.
  • the inner tube or tube structure is made from several individual tubes. The basis here is a longitudinal tube into which a certain number of cross tubes are inserted sideways. The number of cross tubes required is dependent on the number of cylinders that are to be supplied with fuel from the high-pressure fuel reservoir according to the invention.
  • these tubes can advantageously be connected to one another by soldering or welding.
  • soldering or welding other methods for connecting the individual pipe parts are also conceivable, for example mechanical or mechanical thermal processing methods. It is conceivable, for example, that the pipe parts are connected to one another by pressure and heating (so-called diffusion welding process). Alternatively, a connection by reshaping pipe parts would also be conceivable.
  • the occurrence or the size of the stress peaks at the junctions between the transverse and longitudinal tubes is also dependent on the geometry of the corresponding tube section.
  • the voltage peaks that occur become greater when the longitudinal tube is designed with a small radius at the junction with the cross tube.
  • the inner longitudinal tube is elliptically shaped, at least in the area of the connection points between the transverse and longitudinal tubes, in such a way that the longitudinal axis of the associated transverse tube is located in the extension of the shorter axis of symmetry of the elliptical shape. This gives the connection point a significantly lower curvature, which reduces the voltage peaks that occur.
  • other cross-sectional shapes can also be advantageous. It is conceivable to design the cross-sectional shape of the interior as a polygon, or even one Free form to choose.
  • a casting mold is expediently used, into which a prepared blank for the inner pipe or pipes can be placed and can be cast or overmolded with a molten or liquefied casting material.
  • metallic or non-metallic materials can be used both for the cast outer jacket and for the prefabricated inner blank.
  • Steels, glass or ceramic materials or composite materials are particularly suitable for the inner blank.
  • the outer jacket can advantageously be produced, for example, with cast iron, in particular spheroidal graphite cast iron GGG40, or from a glass, ceramic or plastic material.
  • Mixed forms are also possible, for example the use of a metal for the inner tube parts and a non-metal for the outer jacket or vice versa.
  • the use of composite materials made of metals and non-metals is also possible.
  • High-pressure fuel accumulator with a multilayer outer jacket it is advisable to use several molds for production.
  • the inner tube blank is placed in the first mold, overmolded or cast with the material provided for the first layer and then removed from the mold for cooling and / or curing.
  • the resulting blank is placed in the next mold and then cast or overmolded again. This process is repeated until the desired number of layers is reached.
  • an elliptical cross-section can be achieved when using an inner tube blank with a circular cross-section as follows: A mandrel with an elliptical cross-section is then inserted into the inner tube, which corresponds to the desired inner cross-sectional area of the high-pressure accumulator. The inner tube can then be pressed cold or warm around this mandrel, depending on the desired strength properties. A mandrel adapted to the desired cross-sectional shape can be used for the production of other cross-sectional shapes.
  • a mandrel is inserted which corresponds in its cross-sectional area to the desired inner cross-sectional area of the area to be changed. Then this area is brought to the new shape using mechanical or mechanical - thermal forming techniques such as pressing, hot or cold drawing. The mandrel is then removed from the inside of the tube.
  • an inner longitudinal tube blank Following the production of such an inner longitudinal tube blank, this is connected to the cross tubes to form an inner tube blank.
  • This inner tube blank is then introduced into the casting mold and cast or extrusion-coated there with the intended casting material.
  • High-pressure fuel storage in a common rail fuel injection system it is necessary that the high-pressure accumulator on the one hand can be attached to the engine compartment, and on the other hand, the various supply and discharge lines for the fuel must be securely attached to the high-pressure accumulator.
  • the invention advantageously opens up the option of providing corresponding fastening devices for fastening the high-pressure fuel accumulator in the interior of the engine in the course of the casting on the outer jacket. Furthermore, precautions can be taken in the casting mold to form fastening elements for the fuel lines.
  • 1a is an isometric view of a high-pressure fuel accumulator according to the invention.
  • FIG. 1b shows a cross section through the high-pressure fuel accumulator from FIG. 1a.
  • FIG. 1a shows an isometric representation of a high-pressure fuel reservoir according to the invention.
  • the cast body jacket 1 encloses the inner tubes 2 (longitudinal tube) and 3 (cross tubes). In the area of the transition between the cross tube and the longitudinal tube casing, fastening options 4 are provided for the fuel inlets and outlets.
  • the high-pressure fuel accumulator according to the invention can be fastened in the engine compartment with the fastening tabs 5.
  • Figure 1 b shows a longitudinal section through the high-pressure fuel accumulator from Figure 1a.
  • the course of the inner tubes 2 and 3 and the sheathing thereof with the cast body jacket 1 is shown.
  • the profile of the inlet or outlet attachment 4 can also be seen in section.
  • the inner tube wall 6 has a wall thickness in relation to the outer jacket wall 7 which is in the range between 1: 5 and 1:15.
  • the outer shell is reinforced in its wall thickness 8 in the area of the fuel inlets and outlets.

Landscapes

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

Abstract

L'invention concerne une conduite servant à stocker un carburant, une huile ou d'autres liquides de ce type sous haute pression, destinée à être utilisée dans un système d'injection de carburant à rampe commune, comprenant une enveloppe extérieure configurée de manière tubulaire à partir d'un matériau de moulage. Cette invention est caractérisée en ce qu'une ou plusieurs pièces tubulaires internes sont disposées à l'intérieur de l'enveloppe extérieure, et en ce que cette enveloppe extérieure est formée au moyen d'un procédé consistant à enrober la/les pièces tubulaires par coulée ou surmoulage.
PCT/EP2005/050311 2004-01-26 2005-01-25 Conduite de stockage haute pression comportant une enveloppe exterieure constituee d'un materiau de moulage pour rampe commune WO2005070579A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP05716595A EP1709320A2 (fr) 2004-01-26 2005-01-25 Conduite de stockage haute pression comportant une enveloppe exterieure constituee d'un materiau de moulage pour rampe commune

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP04100275.9 2004-01-26
EP04100275 2004-01-26
EP04101147.9 2004-03-19
EP04101147 2004-03-19

Publications (2)

Publication Number Publication Date
WO2005070579A2 true WO2005070579A2 (fr) 2005-08-04
WO2005070579A3 WO2005070579A3 (fr) 2005-11-10

Family

ID=34809760

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2005/050311 WO2005070579A2 (fr) 2004-01-26 2005-01-25 Conduite de stockage haute pression comportant une enveloppe exterieure constituee d'un materiau de moulage pour rampe commune

Country Status (2)

Country Link
EP (1) EP1709320A2 (fr)
WO (1) WO2005070579A2 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008106911A1 (fr) * 2007-03-07 2008-09-12 Salzgitter Mannesmann Präzisrohr GmbH Procédé de fabrication d'un tube accumulateur de haute pression en acier pour des systèmes d'injection de carburant et tube accumulateur de haute pression
DE102009038429A1 (de) * 2009-08-21 2011-02-24 Audi Ag Kraftstoffeinspritzsystem für Brennkraftmaschinen sowie Verfahren zur Herstellung
WO2011144397A1 (fr) * 2010-05-18 2011-11-24 Robert Bosch Gmbh Distributeur de carburant et utilisation dudit distributeur de carburant
WO2016159932A1 (fr) * 2015-03-27 2016-10-06 Cummins Inc. Accumulateur de systèmes de carburant forgé rotatif ovalisé
EP3611369A1 (fr) * 2018-08-16 2020-02-19 Continental Automotive GmbH Ensemble rail de carburant pour un moteur à combustion interne et son procédé de fabrication

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19953942A1 (de) * 1998-11-12 2000-07-20 Avl List Gmbh Kraftstoffzuführsystem für Brennkraftmaschinen
US6213095B1 (en) * 1997-03-03 2001-04-10 Usui Kokusai Sangyo Kaisha Limited Common rail and method of manufacturing the same
DE10042540C1 (de) * 2000-08-30 2002-01-31 Winkelmann & Pannhoff Gmbh & C Vorrichtung zur Verteilung von Kraftstoff für Kraftstoffeinspritzanlagen
US6394825B1 (en) * 1999-05-31 2002-05-28 Sumitomo Wiring Systems, Ltd. Connector block for injectors
EP1233174A2 (fr) * 2001-02-15 2002-08-21 Delphi Technologies, Inc. Rampe à combustible avec amortissement intégré des pulsations de pression et une couche co-injectée imperméable et son procédé de fabrication
DE10140058A1 (de) * 2001-08-16 2002-10-24 Bosch Gmbh Robert Verfahren zur Herstellung eines Kraftstoffhochdruckspeichers
US6626152B1 (en) * 2000-09-19 2003-09-30 Delphi Technologies, Inc. Fuel rail

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01153887A (ja) * 1987-12-10 1989-06-16 Kubota Ltd 二層遠心鋳造管

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6213095B1 (en) * 1997-03-03 2001-04-10 Usui Kokusai Sangyo Kaisha Limited Common rail and method of manufacturing the same
DE19953942A1 (de) * 1998-11-12 2000-07-20 Avl List Gmbh Kraftstoffzuführsystem für Brennkraftmaschinen
US6394825B1 (en) * 1999-05-31 2002-05-28 Sumitomo Wiring Systems, Ltd. Connector block for injectors
DE10042540C1 (de) * 2000-08-30 2002-01-31 Winkelmann & Pannhoff Gmbh & C Vorrichtung zur Verteilung von Kraftstoff für Kraftstoffeinspritzanlagen
US6626152B1 (en) * 2000-09-19 2003-09-30 Delphi Technologies, Inc. Fuel rail
EP1233174A2 (fr) * 2001-02-15 2002-08-21 Delphi Technologies, Inc. Rampe à combustible avec amortissement intégré des pulsations de pression et une couche co-injectée imperméable et son procédé de fabrication
DE10140058A1 (de) * 2001-08-16 2002-10-24 Bosch Gmbh Robert Verfahren zur Herstellung eines Kraftstoffhochdruckspeichers

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1709320A2 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008106911A1 (fr) * 2007-03-07 2008-09-12 Salzgitter Mannesmann Präzisrohr GmbH Procédé de fabrication d'un tube accumulateur de haute pression en acier pour des systèmes d'injection de carburant et tube accumulateur de haute pression
US8918982B2 (en) 2007-03-07 2014-12-30 Salzgitter Mannesmann Precision Gmbh Method for the production of a high-pressure accumulator pipe of steel for fuel injection systems and high-pressure accumulator pipe produced according to this method
DE102009038429A1 (de) * 2009-08-21 2011-02-24 Audi Ag Kraftstoffeinspritzsystem für Brennkraftmaschinen sowie Verfahren zur Herstellung
WO2011144397A1 (fr) * 2010-05-18 2011-11-24 Robert Bosch Gmbh Distributeur de carburant et utilisation dudit distributeur de carburant
WO2016159932A1 (fr) * 2015-03-27 2016-10-06 Cummins Inc. Accumulateur de systèmes de carburant forgé rotatif ovalisé
EP3611369A1 (fr) * 2018-08-16 2020-02-19 Continental Automotive GmbH Ensemble rail de carburant pour un moteur à combustion interne et son procédé de fabrication

Also Published As

Publication number Publication date
WO2005070579A3 (fr) 2005-11-10
EP1709320A2 (fr) 2006-10-11

Similar Documents

Publication Publication Date Title
EP1859958B1 (fr) Composant de bride dans une construction composite tout comme procédé destiné à la fabrication d'un composant de bride
DE10325598B4 (de) Hochdrucktank, bei dem hochfeste Fasern verwendet werden und Verfahren zur Herstellung desselben
EP1106783B1 (fr) Méthode de production d'une aube de turbomachine
WO2007048434A1 (fr) Conduit pour fluide et procede pour sa fabrication
DE102014004157B4 (de) Verfahren zur Herstellung von Lasteinleitungs-Flanschen an faserverstärkten Hohlprofilen mit thermoplastischer Matrix
DE102016201477A1 (de) Druckbehälter sowie Verfahren zur Herstellung eines Druckbehälters
EP1029154B1 (fr) Carter de turbine et son procede de production
WO2005070579A2 (fr) Conduite de stockage haute pression comportant une enveloppe exterieure constituee d'un materiau de moulage pour rampe commune
DE102014004158A1 (de) Verfahren zur Herstellung von Strukturelementen aus Lasteinleitungselement und Faser-Kunststoff-Verbund-Hohlprofil und Strukturelemente
EP0176688B1 (fr) Rondelle de retenu-ressort de soupape et sa méthode de fabrication
DE102015100774A1 (de) Bauteil, Verfahren und Vorrichtung zu dessen Herstellung
DE19731506C2 (de) Kraftstoffeinspritzventil
EP2617981A2 (fr) Procédé d'augmentation de la rigidité durable d'un corps creux et corps creux correspondant
DE102013008810A1 (de) Krafteinleitung in Faserverbundrohre
EP1413744A1 (fr) Accumulateur de pression pour une rampe d'injection commune
DE102006047413B4 (de) Zylinder aus Faserverbundwerkstoff mit metallischen Flanschkomponenten sowie Verfahren zur Herstellung
EP3049666B1 (fr) Piezo-injecteur pour injection directe
DE102010010876A1 (de) Verlorener Formkern zur Herstellung von Bauteilen aus polymeren Faserverbundwerkstoffen sowie Verfahren zur Herstellung desselben und Verfahren zur Herstellung von Bauteilen aus polymeren Faserverbundwerkstoffen mit einem verlorenen Formkern
DE102009024795A1 (de) Wasserstofftank in einem Kraftfahrzeug
EP1621761A2 (fr) Réservoir avec enveloppe en fibre
EP1985388B1 (fr) Poutre métallique résistant aux hautes pressions et son procédé de fabrication
DE102017003024A1 (de) Abschlusselement zur Krafteinleitung in ein vorgefertigtes Faserkunststoffverbundrohr
DE102017205731A1 (de) Kraftstoffhochdruckpumpe
WO2021038000A1 (fr) Procédé de fabrication d'un récipient sous pression et récipient sous pression
EP2167810B1 (fr) Accumulateur haute pression de carburant

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

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: 2005716595

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 2005716595

Country of ref document: EP