WO2010057319A1 - Procédé de production d'une roue cellulaire - Google Patents

Procédé de production d'une roue cellulaire Download PDF

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Publication number
WO2010057319A1
WO2010057319A1 PCT/CH2009/000300 CH2009000300W WO2010057319A1 WO 2010057319 A1 WO2010057319 A1 WO 2010057319A1 CH 2009000300 W CH2009000300 W CH 2009000300W WO 2010057319 A1 WO2010057319 A1 WO 2010057319A1
Authority
WO
WIPO (PCT)
Prior art keywords
sleeve
metal strip
sheet metal
welding
lamellae
Prior art date
Application number
PCT/CH2009/000300
Other languages
German (de)
English (en)
Inventor
Karl Merz
Original Assignee
Mec Lasertec 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=41134598&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2010057319(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Mec Lasertec Ag filed Critical Mec Lasertec Ag
Priority to EP09827099A priority Critical patent/EP2349604B1/fr
Priority to US13/130,725 priority patent/US8756808B2/en
Priority to ES09827099T priority patent/ES2400313T3/es
Priority to JP2011536718A priority patent/JP5622739B2/ja
Publication of WO2010057319A1 publication Critical patent/WO2010057319A1/fr

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00Making other particular articles
    • B21D53/26Making other particular articles wheels or the like
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06Manufacture 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
    • B21C37/15Making tubes of special shape; Making tube fittings
    • B21C37/22Making finned or ribbed tubes by fixing strip or like material to tubes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00Soldering, e.g. brazing, or unsoldering
    • B23K1/0008Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00Soldering, e.g. brazing, or unsoldering
    • B23K1/005Soldering by means of radiant energy
    • B23K1/0056Soldering by means of radiant energy soldering by means of beams, e.g. lasers, E.B.
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K15/00Electron-beam welding or cutting
    • B23K15/0046Welding
    • B23K15/0053Seam welding
    • B23K15/006Seam welding of rectilinear seams
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K15/00Electron-beam welding or cutting
    • B23K15/0046Welding
    • B23K15/0053Seam welding
    • B23K15/0073Seam welding with interposition of particular material to facilitate connecting the parts, e.g. using a filler
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20Bonding
    • B23K26/21Bonding by welding
    • B23K26/24Seam welding
    • B23K26/242Fillet welding, i.e. involving a weld of substantially triangular cross section joining two parts
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B33/00Engines characterised by provision of pumps for charging or scavenging
    • F02B33/32Engines with pumps other than of reciprocating-piston type
    • F02B33/42Engines with pumps other than of reciprocating-piston type with driven apparatus for immediate conversion of combustion gas pressure into pressure of fresh charge, e.g. with cell-type pressure exchangers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04FPUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F13/00Pressure exchangers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00Articles made by soldering, welding or cutting
    • B23K2101/006Vehicles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00Articles made by soldering, welding or cutting
    • B23K2101/04Tubular or hollow articles
    • B23K2101/06Tubes
    • B23K2101/08Tubes finned or ribbed
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00Articles made by soldering, welding or cutting
    • B23K2101/18Sheet panels
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49316Impeller making
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49316Impeller making
    • Y10T29/4932Turbomachine making
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49316Impeller making
    • Y10T29/4932Turbomachine making
    • Y10T29/49321Assembling individual fluid flow interacting members, e.g., blades, vanes, buckets, on rotary support member
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49481Wheel making

Definitions

  • the present invention relates to a method for producing a cellular wheel made of metal, having a cylindrical outer sleeve lying symmetrically to a rotational axis, a cylindrical inner sleeve concentric with the outer sleeve and possibly arranged on a cylindrical flange sleeve, at least one concentric sleeve arranged between outer sleeve and inner sleeve cylindrical intermediate sleeve, wherein between the outer sleeve and intermediate sleeve and between intermediate sleeve and inner sleeve, as well as in more than one intermediate sleeve between successive intermediate sleeves, radially aligned to the axis of rotation slats are arranged.
  • the rotor In a pressure wave supercharger, the rotor is designed as a cellular wheel and is of a Air and exhaust housing enclosed by a common jacket.
  • the development of modern pressure wave chargers for charging small engines leads to cell wheels with a diameter of the order of 100 mm or less.
  • To achieve a maximum cell volume and also for weight reduction cell wall thicknesses of 0.2 mm or less are desired.
  • the production of dimensionally stable and high-precision cell wheels with a low cell wall thickness is today hardly possible or associated with considerable additional costs.
  • the invention is based on the object to produce a cellular wheel of the type mentioned while avoiding the disadvantages of the prior art, easily and inexpensively with the required precision.
  • Another object of the invention is to provide a method for producing a suitable for use in a pressure wave supercharger for supercharging internal combustion engines, in particular for supercharging small gasoline engines with a displacement of the order of 1 liter or less, suitable cellular wheel.
  • the method should cost-effective production Dimensionally stable and high-precision cellular wheels with a cell wall thickness of 0.2 mm or less allow.
  • the method is characterized by the following steps, which are to be carried out successively:
  • step (h) optionally repeating steps (dl) - (fl) or (d2) - (f2) to form at least one further intermediate sleeve and connecting the free ends of the fins of the first intermediate sleeve with the second intermediate sleeve, as well as connecting more than two intermediate sleeves the free ends of the blades of each preceding intermediate sleeve with the subsequent intermediate sleeve by welding or soldering;
  • the core of the first alternative of the method essential to the invention is seen therein, that in each case one to be bent to a sleeve sheet metal strip or a tubular sleeve on one side with the slats.
  • the lamellae of each preceding sleeve can be accurately positioned and joined with the respective following sleeve in a simple manner and can be radially aligned with simple means and connected to the outer sleeve for the finished cellular wheel.
  • the method also allows a simple way of connecting the inner sleeve with a flange sleeve.
  • the method is characterized by the following steps, which are to be carried out successively:
  • Sleeve as an inner sleeve and connecting the free ends of the blades with the outer sleeve or the inner sleeve.
  • the invention essential core of the second alternative of the method is seen in that a metal strip fitted on both sides with the slats and subsequently the two ends of the sheet metal strip are connected.
  • all slats are one-sided already positioned accurately and joined and can be aligned radially with simple means and with the outer and the inner sleeve to the finished cellular connect.
  • the joining of the lamellae with the metal strips, with the outer sleeve, with the inner sleeve and / or with the intermediate sleeve is preferably carried out by welding the parts by means of a laser or electron beam.
  • the joining of the lamellae with the sheet-metal strip, with the outer sleeve, with the inner sleeve and / or with the intermediate sleeve can also be carried out by soldering the parts via a soldering lug in the form of an edge strip extending over the length of the lamellae and coated with a solder ,
  • the inner sleeve and the intermediate sleeve / n Before setting the outer sleeve, the inner sleeve and the intermediate sleeve / n, it may be necessary to remove the free ends of the slats by means of grinding rollers until the free ends of the slats lie on one of the inside of the outer sleeve or the outer side of the inner sleeve corresponding cylinder jacket.
  • a cylindrical inner sleeve arranged on a cylindrical flange sleeve carries out a process characterized by the following steps to be carried out successively:
  • Peripheral line of the inner sleeve corresponding length and with at least one
  • step (g) optionally repeating steps (d) - (f) to form at least one further intermediate sleeve and connecting the free ends of the blades of the first intermediate sleeve with the second intermediate sleeve, and in more than two intermediate sleeves connecting the free ends of the blades of each preceding
  • the invention essential core of the third alternative of the method is seen in the fact that the sheet metal strips fixed with one end on the flange or on the free end of a first blade of an underlying metal strip and rolled up the sheet metal strip and is gradually connected to the pad. This can help with the
  • the setting of the lamellae on the metal strip or the tubular sheaths is preferably carried out by means of an NC-controlled clamping device.
  • the sheet metal strip for setting the fins and connecting with the sheet metal strip can be clamped curved, wherein the setting of the lamellae is performed on the side of the sheet metal strip with the convex curvature.
  • the wall thickness of the materials used to produce the cellular wheel is preferably less than 0.5 mm, in particular less than 0.3 mm and in particular max. 0.2 mm.
  • the cellular wheel produced by the method according to the invention is preferably used in a pressure wave supercharger for supercharging internal combustion engines, in particular gasoline engines with a displacement of 1 liter or less.
  • Fig. 1 is a side view of a cellular wheel for a pressure wave supercharger
  • Fig. 2 is an oblique view of the end face of the cellular wheel of Fig. 1;
  • FIG. 3 shows a section perpendicular to the axis of rotation of the cellular wheel of Figure 1 along the line I-I ..;
  • Fig. 4 is an oblique view of a flat sheet metal strip with fixed on this
  • Fig. 5 is a plan view of the blade assembly shown in Fig. 4;
  • FIG. 6 shows a section through Figure 5 along the line II-II.
  • Figure 7 shows the arrangement of Figure 6 with arranged on both sides of the sheet metal strip slats.
  • Fig. 8 is a FIG. 6 corresponding arrangement with on both sides of the
  • Sheet metal strip simultaneously set slats
  • FIG. 9 shows an arrangement corresponding to FIG. 6 with a curved metal strip
  • FIG. 10 shows an arrangement corresponding to FIG. 7 with a curved metal strip
  • Fig. 11 shows the front view of a both sides equipped with slats and to a
  • FIG. 12 is an enlarged detail of the area X of Fig. 11;
  • Fig. 13 is a plan view of the arrangement of Fig. 11;
  • Fig. 14 is an oblique view of the arrangement of Fig. 11;
  • FIG. 15 shows a representation corresponding to FIG. 11 with attached holders and inserted tool
  • Fig. 16 is an enlarged detail of the area X of Fig. 15;
  • Fig. 17 is a plan view of the arrangement of Fig. 15;
  • Fig. 18 is an oblique view of the arrangement of Figure 15;
  • FIG. 19 shows an arrangement corresponding to FIG. 11 with inserted tool and positioned grinding rollers
  • FIG. 20 shows the arrangement shown in FIG. 11 with inserted inner and outer sleeves during welding of the blades
  • FIG. 21 shows enlarged details of the regions X, Y, Z of FIG. 20 with differently executed weld seam
  • FIG. 22 shows the arrangement shown in FIG. 21 with the tool inserted and the hold-down device attached
  • Fig. 23 is an enlarged detail of the area X of Fig. 22;
  • Fig. 24 is an oblique view of the arrangement of Fig. 22;
  • Fig. 25 is a side view of the cellular wheel of Fig. 20 with welded Labyrinth seal;
  • FIG. 26 is an enlarged detail (area X) of the one shown in FIG. 25
  • FIG. 27 is a front view of a cellular wheel when trimming to final dimensions
  • Fig. 28 is an oblique view of the arrangement of Fig. 27;
  • Fig. 29 is a FIG. 8 corresponding arrangement with fins with welding or
  • Fig. 30 is a FIG. 22 corresponding arrangement with fins with welding or
  • Fig. 31 is an enlarged detail of the area X of Fig. 30;
  • FIG. 32 shows an oblique view of an inner sleeve of a cellular wheel with a part of set and joined blades
  • FIG. 33 shows an oblique view of an arrangement corresponding to FIG. 32 during welding to a flange sleeve
  • FIG. 34 shows a section through a partial region of the arrangement of FIG. 32 at right angles to the cell wheel axis in an enlarged representation
  • FIG. 35 shows a first section through a partial region of the arrangement of FIG. 33 at right angles to the cell wheel axis in an enlarged representation
  • FIG. 36 shows a second section through an area of the cell wheel of FIG. 33 at right angles to the cell wheel axis in an enlarged representation
  • Fig. 37 is a longitudinal section through the arrangement of Fig. 33 with inserted Tool and pushed intermediate sleeve;
  • FIG. 38 shows a cross section through part of the arrangement of FIG. 37 according to FIG.
  • FIG. 39 shows the cross section of FIG. 38 after setting and joining further slats
  • FIG. 40 shows the cross section of FIG. 39 with the second intermediate sleeve pushed on
  • FIG. 41 shows the cross section of FIG. 40 after setting and joining further lamellae
  • Fig. 42 is a side view of a flange sleeve when rolling a flat
  • Fig. 43 is a front view of the assembly of Fig. 42;
  • FIG. 44 is an oblique view from above of the arrangement of FIG. 42; FIG.
  • Fig. 45 is a side view corresponding to Fig. 42 when rolling a second flat sheet metal strip with fixed on this lamella on the
  • Fig. 46 is a front view of the assembly of Fig. 45;
  • FIG. 47 is an oblique view from above of the arrangement of FIG. 45; FIG.
  • Fig. 48 is a side view corresponding to Fig. 45 when rolling a third level
  • FIG. 49 is a front view of the assembly of FIG. 48; FIG.
  • FIG. 50 is an oblique view from above of the arrangement of FIG. 48.
  • feeder 10 of a pressure wave loader not shown in the drawing consists of a symmetrical to a rotation axis y of the cellular wheel 10 lying, cylindrical outer sleeve 12, a concentric with the outer sleeve 12, cylindrical inner sleeve 14 and one between the outer sleeve 12 and the inner sleeve 14 concentrically arranged intermediate sleeve 18.
  • the exemplified cellular 10 having a diameter D and a length L of z. B. per 100 mm has 54 outer cells 20 and 54 inner cells 22 on.
  • the outer sleeve 12, the intermediate sleeve 18, the inner sleeve 14 and the fins 16 have a uniform wall thickness of z. B. 0.2 mm and consist of a highly heat-resistant metallic material, for.
  • the said parts have in the direction of the rotation axis y an equal length L corresponding to the length of the cellular wheel 10 and extending between two perpendicular to the axis of rotation y end faces of the cellular wheel 10.
  • circumferential profiles 24 of a labyrinth seal arranged.
  • the counter profiles to the profiles 24 required for forming the labyrinth seal are located on the inner wall of a cell wheel housing, which is provided for supporting the cellular wheel 10 and not shown in the drawing.
  • a sheet metal strip 26 of a length 1 and a width b is clamped flat on a tool table, not shown in the drawing.
  • slats 16 are positioned by a pair of pliers 28 by means of an NC control individually parallel to each other at a predetermined mutual distance perpendicular to the plane of the sheet metal strip 26 on the sheet metal strip 26, pressed against this and welded in this fixed position along the contact line of the fins 16 with the surface of the metal strip 26 by means of a laser beam 30 guided along the contact line with the sheet-metal strip 26.
  • the number of mutually parallel slats 16 and their position on the sheet metal strip 26 correspond to the arrangement of the lamellae 16 between the intermediate sleeve 18 and the outer sleeve 12 of the cellular wheel 10.
  • Fig. 5 which extend one behind the other in the longitudinal direction of the metal strip 26 Slats 16 not over the entire width b of the metal strip 26, but leave both sides a free edge strip 27 with an excess e of z. B. 5 mm.
  • the sheet metal strip 26 is turned on the tool table, and the still free surface of the sheet metal strip 26 is fitted with slats 16, as described above (FIG. 7).
  • the number of fins 16 and their position on the sheet metal strip 26 now correspond to the arrangement of the fins 16 between the intermediate sleeve 18 and the inner sleeve 14 of the cellular wheel 10th
  • the lamellae 16 are usually cut to a predetermined length before being set by a sheet metal strip in the form of rolls.
  • the lamellae 16 are set on both sides of the metal strip 26 with two pliers 28, 28 'simultaneously and simultaneously welded to the metal strip 26 by means of one NC-controlled laser beam 30, 30'.
  • the sheet-metal strip 26 is clamped on the tool table with a curvature.
  • the setting of the fins 16 on the sheet metal strip 26 takes place on the convexly curved surface.
  • the curvature of the metal strip 26 results in an improved access of the laser beam 30 to be welded to the line of contact between sheet metal strip 26 and blade 16 and a greater freedom in the leadership of the laser beam 30.
  • the metal strip 26 fitted with lamellae 16 on both sides is then curved, as shown in FIGS. 11 to 14, over a mandrel into a cylindrical shape.
  • the curved and welded to a cylindrical shape sheet metal strip 26 corresponds to the intermediate sleeve 18 of the cellular wheel 10th
  • the metal strip curved into a cylindrical shape is held and fixed on the outer periphery by lamellae 16 projecting radially inwards and outwards from three holders 32.
  • the distributed over the circumference brackets 32 are provided with the predetermined angular position of the slats 16 corresponding slots 33, in which the slats 16 penetrate with their free end when placing the brackets 32 and 33 optionally slightly directed by the wedge-shaped tapered slots and fixed in position.
  • the inwardly projecting from the cylindrical intermediate sleeve 18 lamellae 16 are fixed on the front side introduced tools 34 with a cylindrical cross-section of the cylinder surface radially inwardly directed and optionally tapered and the predetermined angular position of the lamellae 16 corresponding slots.
  • the fixed in this way and aligned at their butt edges ends of the metal strip 26 are now welded by means of a guided edge along the laser beam 30 to form a longitudinal weld 31.
  • the outer sleeve 12 and the inner sleeve 14 with an outer grinding roller 36 and an inner grinding roller 38, remove the free ends of the fins 16 so that they on one of the inside of the outer sleeve 12 and the outside of the Inner sleeve 14 corresponding cylinder jacket lie.
  • the two grinding rollers 36, 38 are arranged parallel and at a fixed distance from each other. During the grinding process, the two grinding rollers 36, 38 rotate with mutually opposite direction of rotation and form a grinding gap 39.
  • the welded to the cylindrical intermediate sleeve 18 sheet metal strip 26 with the both sides projecting lamellae 16 rotates against the rotational movement of the two grinding rollers 36, 38 in the grinding nip 39.
  • the outwardly projecting fins 16 are processed by the outer grinding roller 36 and the inwardly projecting fins 16 of the inner grinding roller 38, wherein the axes of the grinding rollers 36, 38 and the axis of rotation y of the cellular wheel are parallel to each other in a common plane.
  • the slats 16 are fixed in their predetermined position.
  • a tool 40 engages in the form of a hollow cylinder with radially inwardly directed from the cylinder inside and -aussenwand and optionally tapered and the predetermined angular position of the slats 16 corresponding slots for receiving and fixing the slats 16 from one end side (see Figs. 22 to 24).
  • the fins 16 have over the inner and outer circumferential surface of the tool 40 a small excess, which is removed during grinding until the free end edges of the fins 16 are aligned with the inner and outer circumferential surface of the tool 40.
  • the outer sleeve 12 and the inner sleeve 14 in the form of tubular sleeves are pushed up or pushed in from one end face and against the outer or inner circumferential surface of the tool 40 and thus also the free ends of the fixed in the tool 40 fins 16 applied.
  • the free ends of the lamellae 16 are welded along the abutting edges with the outer sleeve 12 and the inner sleeve 14 by means of a laser beam 30 guided along each abutting edge.
  • the laser beam is guided perpendicular to the surface of the outer or inner sleeve 12, 14 and penetrates in the radial direction over the butt edge in the radial aligned blade 16 a.
  • two laser beams 30, 30 ' are directed from opposite sides at an acute angle to the surface of the outer sleeve 12 against each other and through it into the free end of the outer sleeve 12 abutting a bump blade 16.
  • FIGS. 20 and 21 two laser beams 30, 30 'are directed from opposite sides at an acute angle to the surface of the outer sleeve 12 against each other and through it into the free end of the outer sleeve 12 abutting a bump blade 16.
  • two-part hold-downs 42, 44 are used to carry out the welds, which depress the outer sleeve 12 or the inner sleeve 14 on both sides of the weld seam to be set, and thus good surface contact with the edge of the slat 16 to ensure.
  • the hold-downs are equipped with a central, wedge-shaped and radially aligned to the rotation axis y gap 43, 45 for the laser beam 30.
  • FIGS. 25 and 26 show an exemplary embodiment of profiles 24 of a labyrinth seal arranged annularly circumferentially in the region of the two end faces of the finished cellular wheel 10 on the outer sleeve 12.
  • the profile 24 is connected by means of two laser beams 30, 30 'via two circumferential welds with the outer sleeve 12.
  • the lamellae 16 described above are strip-shaped, flat sheet-metal parts which are perpendicular to a cylinder edge surface to be welded to the lamella 16 via a joint edge. To connect the two parts, a laser beam is guided linearly along the edge of the joint.
  • lamellae 16 are used, in which at least one of the longitudinal edges of the flat lamellar surface at an angle of about 90 ° to a marginal, strip-like welding or Lötfahne 17 is bent over a width of about 3mm.
  • the lamellae 16 with one or two welding or soldering lugs 17 can, as described above, be connected by means of laser or electron beam welding via the welding or soldering lugs 17 to the sheet metal part 26, to the outer sleeve 12 and to the inner sleeve 14.
  • the fins 16 can also be soldered to the said parts.
  • slats 16 sheet metal strip is provided in the form of rolls in the edge region with a strip of solder. After cutting to the length of the fins 16, the edge strips coated with solder are bent over to the soldering lugs 17.
  • a soldering to the metal strip 26 by brief rapid heating of Lötfahne 17 is performed on the solidus temperature of the solder, for example via an inductive heating device.
  • soldering of the soldering lugs 17 with the outer sleeve 12 and the inner sleeve 14 can after the positionally accurate alignment of the fins 16 in an oven, for. B. in a strip continuous annealing furnace. It is also conceivable first to connect the lamellae 16 by means of laser or electron beam welding to the sheet-metal strip 26, whereby the free end of the lamellae 16 to be connected to the sheet-metal strip 16 may be formed with or without welding lug 17, and subsequently with the outer sleeve 12 and perform with the inner sleeve 14 to be connected free end of the fins 16 via a solder-coated Lötfahne 17.
  • FIGS. 32 to 41 A further variant of the above-described manufacture of a cellular wheel 10 is described in FIGS. 32 to 41.
  • the essential difference from the production method described above is that the sheet metal strip 26 is equipped only on one side with the fins 16 and is subsequently curved to a cylindrical shape, whereby a previously prepared sleeve can be fitted with the fins 16.
  • Fig. 32 and Fig. 34 show the placement of a prefabricated inner sleeve 14 with the lamellae 16.
  • the lamellae 16 are successively set and joined by means of a laser beam 30k via a fillet weld with the inner sleeve 14.
  • the inner sleeve 14 may be a seamless sleeve or a sheet metal strip 26 curved to a tubular sleeve and welded along a butt edge to form a longitudinal weld seam. It is also initially a sheet metal strip 26 equipped on one side with the fins 16, then curved into a cylindrical shape and welded to the butt edges to the inner sleeve 14 (Fig. 35).
  • the inner sleeve 14 equipped with lamellae 16 is pushed onto a flange sleeve 15 connected to a drive shaft 13.
  • connection of the inner sleeve 14 with the flange sleeve 15 by welding the end edges of the inner sleeve 14 and flange sleeve 15 by means of laser beams 30.
  • the inner sleeve 14 with the flange sleeve 15 is respectively between adjacent slats 16 a laser beam 30 connected to form a blind seam.
  • FIGS. 37 to 41 show the structure of a cellular wheel with two and more intermediate sleeves 18.
  • the lamellae 16 projecting outwards from the inner sleeve 14 are fixed in a predetermined angular position by means of tools 34 introduced at the end.
  • this is welded by means of a laser beam 30 via a blind seam with the free end edges of the underlying slats 16 (FIGS. 37 and 38).
  • the first intermediate sleeve 18 is equipped with further fins 16.
  • the lamellae 16 are set successively and joined by means of a laser beam 30 k via a fillet weld with the intermediate sleeve 18 (FIG. 39).
  • the lamellae 16 are in turn fixed on the end face introduced tools 34 in a predetermined angular position.
  • a second intermediate sleeve 18 After pushing on a second intermediate sleeve 18, it too is welded by means of a laser beam 30 via a blind seam to the free end edges of the underlying lamellae 16 (FIG. 40).
  • the second intermediate sleeve 18 is equipped with further fins 16.
  • the lamellae 16 are in turn set in succession and joined by means of a laser beam 30 k via a fillet weld with the intermediate sleeve 18 (FIG. 41).
  • one or more further intermediate sleeves 18 may be provided with corresponding blades 16.
  • As the outermost sleeve of the cell wheel instead of a further intermediate sleeve a final outer sleeve 12, as described above, set and grouted.
  • FIGS. 42 to 50 another variant of the above-described manufacture of a cellular wheel is described.
  • the essential difference to the previously described types of production is that the only one-sided with the
  • one end of a one-sided with lamellae 16 and in the finished feeder the inner sleeve 14 forming the first metal strip 26 is welded by a laser beam 30 to the flange sleeve 15.
  • the other end of the sheet metal strip 26 is clamped in a clamping device 46.
  • the one-sided fixed to the flange sleeve 15 first sheet metal strip 26 is acted upon by the clamping device 46 perpendicular to the axis of rotation y of the flange sleeve 15 and the cellular wheel with a tensile force K and stretched so that the one side equipped with the fins 16 first metal strip 26 when turning the flange 15 rests around the axis of rotation y in the direction of arrow A at the location of the welding of the flange sleeve 15 to be carried out over the entire width.
  • the welding of the sheet-metal strip 26 with the flange sleeve 15 can take place after a respective number of lamellae 16, ie, for example, after every second or third lamella 16.
  • the welding is carried out between all the lamellae 16, ie the laser beam guided parallel to the lamellae 16 30 travels between adjacent lamellae 16 parallel to the axis of rotation y in one direction across the width of the resting on the flange sleeve 15 sheet metal strip 26 and clocked rotation of the flange 15 each by a distance corresponding to the lamellar pitch angle in the opposite direction.
  • the clamping device 46 After the final cutting of the metal strip 26 on the circumferential line of the flange 15 corresponding length is clamped in the clamping device 46 until then end with the flange sleeve 15 and the two end edges together to form the Inner sleeve 14 welded.
  • the other end of the second sheet metal strip 26 is clamped in the clamping device 46.
  • the one-sided fixed to a free end of a first blade 16 of the first metal strip 26 second sheet metal strip 26 is acted upon by the clamping device 46 at right angles to the axis of rotation y of the flange sleeve 15 and the cellular wheel with a tensile force K and stretched so that the one side with the slats 16th equipped second sheet metal strip 26 during rotation of the flange sleeve 15 about the rotation axis y in the direction of arrow A at the location of the weld to be performed rests the free ends of the fins 16 of the first metal strip 26 over the entire length of the fins 16 fed.
  • the guided parallel to the blades 16 of the second metal strip 26 laser beam 30 moves between adjacent blades 16 parallel to the axis of rotation y in one direction over the width of resting on the free ends of the blades 16 of the first metal strip 26 second metal strip 26 and clocked rotation of the flange 15 each by a distance corresponding to the lamellar pitch angle in the opposite direction. In this way, all lamellae 16 of the first metal strip are welded successively over their free ends with the resting second sheet metal strip 26.
  • one end of a third sheet metal strip 26 forming a final outer sleeve 12 in the finished cellular wheel is welded by a laser beam 30 to the free end of a lamella 16 of the second sheet metal strip 26 lying underneath.
  • the other end of the third sheet metal strip 26 is clamped in the clamping device 46.
  • the one-sided at the free end of a first blade 16th of the second sheet-metal strip 26 fixed third sheet metal strip 26 is acted upon by the clamping device 46 at right angles to the axis of rotation y of the flange sleeve 15 and the cellular wheel 10 with a tensile force K and stretched so that the third sheet metal strip 26 when rotating the flange sleeve 15 about the rotation axis y in the direction of arrow A at the location of the welding to be performed the free ends of the fins 16 of the second metal strip 26 over the entire length of the fins 16 rests satisfactorily.
  • the guided parallel to the blades 16 of the second metal strip 26 laser beam 30 travels over the free ends of the blades 16 of the second metal strip 26 parallel to the axis of rotation y in one direction over the width of resting on the free ends of the blades 16 of the second metal strip 26 third sheet metal strip 26 and after clocked rotation of the flange sleeve 15 in each case by a distance corresponding to the lamellar pitch angle in the opposite direction. In this way, all lamellae 16 are welded successively over their free ends with the resting third sheet metal strip 26.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Plasma & Fusion (AREA)
  • Laser Beam Processing (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

L'invention concerne un procédé de production d'une roue cellulaire en métal, comprenant les étapes suivantes consistant successivement à: (a) prendre une bande de tôle (26) d'une longueur (1) correspondant au moins à la longueur d'une ligne circonférentielle d'une douille intermédiaire et d'une largeur (b) correspondant au moins à la longueur de la roue cellulaire; (b) mettre en place un nombre prédéterminé de lamelles (16) aux emplacements prédéterminés sur les deux faces de la bande de tôle (26) et ce, perpendiculairement à la surface de tôle et perpendiculairement à la direction longitudinale de la bande de tôle (26), et assemblage par soudage ou brasage des lamelles (16) à la bande de tôle (26); (c) plier la bande de tôle (26) dont les deux faces sont équipées de lamelles (16), et assemblage par soudage ou brasage des deux extrémités de la bande de tôle (26) pour obtenir la douille intermédiaire; (d) mettre en place une première douille tubulaire concentrique à la douille intermédiaire en tant que douille extérieure et une deuxième douille tubulaire concentrique à la douille intermédiaire en tant que douille interne, puis assemblage par soudage ou brasage des extrémités libres des lamelles (16) à la douille externe ou la douille interne. Ce procédé permet la production de roues cellulaires dont la paroi a une épaisseur maximale de 0,2 mm aux fins d'utilisation dans des suralimenteurs à ondes de pression.
PCT/CH2009/000300 2008-11-21 2009-09-08 Procédé de production d'une roue cellulaire WO2010057319A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP09827099A EP2349604B1 (fr) 2008-11-21 2009-09-08 Procédé de production d'une roue cellulaire
US13/130,725 US8756808B2 (en) 2008-11-21 2009-09-08 Method for producing a cellular wheel
ES09827099T ES2400313T3 (es) 2008-11-21 2009-09-08 Procedimiento para la fabricación de una rueda celular
JP2011536718A JP5622739B2 (ja) 2008-11-21 2009-09-08 セル式ホイールの製造方法

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP08020288 2008-11-21
EP08020288.0 2008-11-21
EP09005819.9 2009-04-27
EP09005819 2009-04-27

Publications (1)

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WO2010057319A1 true WO2010057319A1 (fr) 2010-05-27

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PCT/CH2009/000300 WO2010057319A1 (fr) 2008-11-21 2009-09-08 Procédé de production d'une roue cellulaire

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US (1) US8756808B2 (fr)
EP (1) EP2349604B1 (fr)
JP (1) JP5622739B2 (fr)
ES (1) ES2400313T3 (fr)
PT (1) PT2349604E (fr)
WO (1) WO2010057319A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2450121A1 (fr) 2010-11-03 2012-05-09 MEC Lasertec AG Procédé de fabrication d'une roue cellulaire
DE102012104229A1 (de) 2012-05-15 2013-11-21 Benteler Automobiltechnik Gmbh Zellrotor sowie Verfahren zum Herstellen des Zellrotors
EP2672123A1 (fr) 2012-06-07 2013-12-11 MEC Lasertec AG Roue cellulaire, en particulier pour un système de suralimentation à ondes de pression
DE102012105064A1 (de) 2012-06-12 2013-12-12 Benteler Automobiltechnik Gmbh Druckwellenlader mit Zellrotor sowie Verfahren zum Herstellen des Zellrotors
CN109570909A (zh) * 2017-09-28 2019-04-05 成都飞机工业(集团)有限责任公司 一种弱刚性型面零件的双面加工方法

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GB920908A (en) * 1961-01-20 1963-03-13 Power Jets Res & Dev Ltd Improvements in or relating to pressure exchangers
GB1076235A (en) * 1965-02-23 1967-07-19 Brown Fintube Co A method of brazing an elongated fin to a body

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GB693009A (en) * 1950-07-06 1953-06-17 Brown Fintube Co Method and product of the method of making tubes having internal fins
DE937407C (de) * 1952-02-06 1956-01-05 Air Preheater Corp Verfahren zur Herstellung von aus konzentrisch angeordneten Rohren mit zwischen diesen in Nuten der Rohre eingesetzten radialen Stegen bestehenden Waermeaustauschereinheiten
US2857661A (en) * 1954-08-30 1958-10-28 Griscom Russell Co Axial finned tube banding head construction
GB920908A (en) * 1961-01-20 1963-03-13 Power Jets Res & Dev Ltd Improvements in or relating to pressure exchangers
GB1076235A (en) * 1965-02-23 1967-07-19 Brown Fintube Co A method of brazing an elongated fin to a body

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2450121A1 (fr) 2010-11-03 2012-05-09 MEC Lasertec AG Procédé de fabrication d'une roue cellulaire
WO2012059372A1 (fr) 2010-11-03 2012-05-10 Mec Lasertec Ag Procédé de fabrication d'une roue cellulaire
JP2014502325A (ja) * 2010-11-03 2014-01-30 エムエーツェー レーザーテック アーゲー セルラーホイールの製造方法
US9221126B2 (en) 2010-11-03 2015-12-29 Mec Lasertec Ag Method for producing a cellular wheel
DE102012104229A1 (de) 2012-05-15 2013-11-21 Benteler Automobiltechnik Gmbh Zellrotor sowie Verfahren zum Herstellen des Zellrotors
EP2672123A1 (fr) 2012-06-07 2013-12-11 MEC Lasertec AG Roue cellulaire, en particulier pour un système de suralimentation à ondes de pression
US9562435B2 (en) 2012-06-07 2017-02-07 Mec Lasertec Ag Cellular wheel, in particular for a pressure wave supercharger
DE102012105064A1 (de) 2012-06-12 2013-12-12 Benteler Automobiltechnik Gmbh Druckwellenlader mit Zellrotor sowie Verfahren zum Herstellen des Zellrotors
DE102012105064B4 (de) * 2012-06-12 2014-07-10 Benteler Automobiltechnik Gmbh Druckwellenlader mit Zellrotor sowie Verfahren zum Herstellen des Zellrotors
CN109570909A (zh) * 2017-09-28 2019-04-05 成都飞机工业(集团)有限责任公司 一种弱刚性型面零件的双面加工方法

Also Published As

Publication number Publication date
EP2349604A1 (fr) 2011-08-03
US20110239463A1 (en) 2011-10-06
PT2349604E (pt) 2013-03-04
JP5622739B2 (ja) 2014-11-12
JP2012509180A (ja) 2012-04-19
ES2400313T3 (es) 2013-04-09
US8756808B2 (en) 2014-06-24
EP2349604B1 (fr) 2012-11-28

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