Classifications

• • 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
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
  • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
  • F28F9/02—Header boxes; End plates
  • F28F9/0202—Header boxes having their inner space divided by partitions
  • F28F9/0204—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions
  • F28F9/0209—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only transversal partitions
  • F28F9/0212—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only transversal partitions the partitions being separate elements attached to header boxes
• • 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
  • Y10T29/49373—Tube joint and tube plate structure
• • 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
  • Y10T29/49389—Header or manifold making

Definitions

• the invention relates to a method for producing a heat exchanger comprising at least one fluid box delimited by a tubular wall and separated into compartments by at least one intermediate transverse partition, and a multiplicity of parallel tubes, each communicating with a compartment of the fluid box through an opening of said tubular wall, process in which each partition is introduced into the tubular wall, through an open end of the latter, to bring it to the place it is to occupy, and the partition is immobilized by deformation of the tubu ⁇ lar wall on either side thereof.
• the invention relates in particular to a method of the kind defined in the introduction, and provides that said deformation is carried out exclusively in at least one region of the perimeter of the tubular wall distinct from that in which said openings are made.
• the tubular wall is brazed to the partition and / or to the tubes in a fluid-tight manner.
• the tubular wall is constituted by a rolled sheet of which two opposite edges are linked according to a generatrix of the wall.
• the invention also relates to a heat exchanger as can be obtained by the method defined above, comprising at least one fluid box separated into compartments by at least one transverse partition, and a multipli ⁇ city of parallel tubes, communicating each with a compartment of the fluid box by an opening thereof, the fluid box comprising a tubular wall pierced by said openings and surrounding the edge of the partition, and deformed on either side thereof for the immobili - Serve in at least one region of its perimeter distinct from that in which said openings are made.
• FIG. 1 is a partial view of a heat exchanger according to the invention, in cross section to the axis of the tubular wall, along the line II-II of Figure 2;
• FIG. 2 is a partial view in axial section along the line II-II of Figure 1.
• the partially illustrated heat exchanger intended in particular to serve as a condenser in an air conditioning installation of the passenger compartment of a motor vehicle, is of the type described in FR-A-2 676 535 and comprises a fluid box 1 whose tubular wall 2 has a multiplicity of openings 3.
• a tube 4 whose cross section is elongated in the transverse direction of the fluid box, the tubes 4 being mutually parallel and perpendicular to the longitudinal direction of the fluid box.
• One end 5 of each of the tubes 4 is located inside the fluid box 1, the opposite end possibly being located inside another fluid box, not shown, similar to the fluid box 1 and extending parallel thereto.
• Inserts, not shown, constituted by strips of metal sheet curved in the form of a sinusoid are placed in the gaps between the tubes 4 to come into thermal contact with them.
• Partitions 6 extend transversely inside the fluid box, namely at least one intermediate partition re, and where appropriate end partitions. Only an intermediate partition 6 is visible in Figure 2, and separates two compartments 7 and 8 of the fluid box. Each of the partitions 6 is immobilized in its place by deformations 9 of the tubular wall 2. In the example illustrated, four deformations 9 are provided, projecting towards the inside of the fluid box, for the same partition 6, of which two on the side of compartment 7 and two on the side of compartment 8. As can be seen in FIG. 1, each projection 9 is almost pointwise in the circumferential direction of the tubular wall, in the sense that it has a profile bell-shaped extending over a short arc length. On each side of the partition 6, the two deformations 9 are arranged symmetrically with respect to one another with respect to the axial plane P of the tubular box passing through the centers 10 of the opening 3, and are separated from one another the other about half a circumference.
• the peripheral edge of the partitions 6 is tightly brazed to the internal surface of the tubular wall 2, and the external surface of the tubes 4 is tightly brazed to the edges of the openings 3.
• a tubular wall 2 of cylindrical shape having a uniform internal cross section which is substantially circular and sufficiently large to allow the longitudinal sliding of the partitions 6, the outline of which is also circular.
• the tubular wall 2 can be constituted by a rolled and assembled sheet, in particular welded, edge to edge.
• Each of the partitions is introduced through one of the open ends of the tubular wall and it is made to slide longitudinally to the place it is to occupy.
• the deformations 9 are then carried out which immobilize the partitions in position. These deformations can be obtained by means of a tool resting on the outside face of the wall 2.
• the openings 3 were here made before the deformations 9, and without the formation of craters towards the inside of the fluid box. Consequently, the region of the perimeter of the tubular wall over which the openings 3 extend has a profile in a uniform arc over the entire length of the wall 2.
• the seal between the outer surface of the tubes 4 and the openings 3 on the one hand, between the edge of the partitions 6 and the inner surface of the tubular wall 2 on the other hand, is obtained by brazing by means of a metal coating fuse which is blown by heating the assembled heat exchanger.
• This coating is preferably provided on the outer surface of the tubular wall 2 for its connection with the tubes, and on the partitions for their connection with the tubular wall. This prevents the presence of such a coating on the internal surface of the tubular wall, which could cause partial closure of the ends of the tubes.

Landscapes

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

Applications Claiming Priority (3)

Publications (1)

Family

ID=9480352

Family Applications (1)

Country Status (7)

Families Citing this family (7)

Family Cites Families (5)

• 1995
  • 1995-06-23 FR FR9507600A patent/FR2735856B1/fr not_active Expired - Lifetime
• 1996
  • 1996-06-19 EP EP96922954A patent/EP0776455A1/de not_active Withdrawn
  • 1996-06-19 US US08/793,242 patent/US6308410B1/en not_active Expired - Lifetime
  • 1996-06-19 CN CN96190673A patent/CN1157038A/zh active Pending
  • 1996-06-19 BR BR9606482A patent/BR9606482A/pt not_active Application Discontinuation
  • 1996-06-19 WO PCT/FR1996/000949 patent/WO1997001073A1/fr not_active Ceased
  • 1996-06-19 KR KR1019970701156A patent/KR970705733A/ko not_active Withdrawn

Non-Patent Citations (1)

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