Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21D53/00—Making other particular articles
  • B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
  • B21D53/06—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of metal tubes
• • 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
  • B21C37/151—Making tubes with multiple passages
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
  • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
  • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
  • F28D1/03—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits
  • F28D1/0391—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits a single plate being bent to form one or more conduits
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
  • F28F1/00—Tubular elements; Assemblies of tubular elements
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
  • F28F1/00—Tubular elements; Assemblies of tubular elements
  • F28F1/02—Tubular elements of cross-section which is non-circular
  • F28F1/022—Tubular elements of cross-section which is non-circular with multiple channels
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
  • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
  • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
  • F28F3/025—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being corrugated, plate-like elements
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T29/00—Metal working
  • Y10T29/49—Method of mechanical manufacture
  • Y10T29/4935—Heat exchanger or boiler making
  • Y10T29/49391—Tube making or reforming

Definitions

• the internal partition 19 is for example made by opposite edges 11a, 11b of the metal strip 11 bent substantially at 90 °. Said opposite edges 11a, 11b folded back against each other to jointly form the partition 19.
• the outer walls 13 opposite edges 11a, 11b are in contact. Said opposite edges 11a, 11b respectively have an end 12a, 12b. Said ends 12a, 12b are facing the inner wall of the projection 50 of the second major face 44 at a junction zone 22.
• Said projection 50 has a height h s , said height h s being defined as the protrusion of the projection 50 inside the tube 1.
• Said height h s is for example between 30 ⁇ to 200 ⁇ , preferably 50 ⁇ to ⁇ , preferably 50 ⁇ at 70 ⁇ .
• the height h s of the projection 50 is preferably chosen so that once the tube 1 folds, the ends 12a, 12b are in contact with the projection 50.
• the ends 12a, 12b and the inner wall 15 of the protrusion 50 are separated by a distance. Said distance being less than ⁇ , that is to say the brazing limit.
• the ends 12a, 12b and the inner wall 15 of the projection 50 can be brazed easily. We thus find a good mechanical resistance. Referring now to FIG. 3 illustrating the steps of carrying out a heat exchanger tube, and Figures 4a, 4b, 4c and 2 illustrating some of these steps.
• the height h s of the projection 50 is chosen so that the projection 50 is in contact with the ends 12a, 12b once the band 11 has been folded.
• the height h s of the projection 50 is equal to the gap h e , that is to say between 30 ⁇ and 200 ⁇ .
• the height h s of the projection 50 is between 50 ⁇ at 70 ⁇ .
• the metal strip 11 is folded to form the two circulation channels 17a, 17b (FIG. 2) by joining the opposite edges 11a, 11b at the junction zone 22.
• the opposite edges 11a, 11b substantially at 90 ° and to bend two portions of the strip 11 which will form the two small curved faces of the tube 1.
• the distance between the ends 12a, 12b and the inner wall 15 of the projection 50 must be less than ⁇ to allow brazing. This distance is less than ⁇ (that is to say at the limit age arm).

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Physics & Mathematics (AREA)
• Thermal Sciences (AREA)
• General Engineering & Computer Science (AREA)
• Geometry (AREA)
• Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Applications Claiming Priority (2)

Publications (1)

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Family Applications (1)

Country Status (5)

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Citations (3)

Family Cites Families (16)

• 2012
  • 2012-01-31 FR FR1250900A patent/FR2986313A1/fr active Pending
• 2013
  • 2013-01-29 WO PCT/EP2013/051691 patent/WO2013113700A1/fr active Application Filing
  • 2013-01-29 US US14/375,634 patent/US9975168B2/en active Active
  • 2013-01-29 CN CN201380011797.9A patent/CN104302999B/zh active Active
  • 2013-01-29 EP EP13702974.0A patent/EP2810008A1/de not_active Withdrawn

Patent Citations (3)

Non-Patent Citations (1)

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