EP2028431A2 - Tuyau plat à plusieurs chambres, échangeur thermique et utilisation d'un échangeur thermique - Google Patents

Tuyau plat à plusieurs chambres, échangeur thermique et utilisation d'un échangeur thermique Download PDF

Info

Publication number
EP2028431A2
EP2028431A2 EP08014698A EP08014698A EP2028431A2 EP 2028431 A2 EP2028431 A2 EP 2028431A2 EP 08014698 A EP08014698 A EP 08014698A EP 08014698 A EP08014698 A EP 08014698A EP 2028431 A2 EP2028431 A2 EP 2028431A2
Authority
EP
European Patent Office
Prior art keywords
forming
flat tube
walls
chamber flat
edge portion
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP08014698A
Other languages
German (de)
English (en)
Other versions
EP2028431A3 (fr
Inventor
Werner Helms
Michael Kohl
Werner Oswald
Christoph Kästle
Jürgen Hägele
Franco Ghiani
Kamal Galahroudi
Matthias Traub
Holger Auchter
Roger Matthissen
Cédric Baillieul
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mahle Behr GmbH and Co KG
Original Assignee
Behr GmbH and Co KG
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 Behr GmbH and Co KG filed Critical Behr GmbH and Co KG
Publication of EP2028431A2 publication Critical patent/EP2028431A2/fr
Publication of EP2028431A3 publication Critical patent/EP2028431A3/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • 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
    • 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

Definitions

  • the invention relates to a Niehrhunt flat tube with at least two chambers for flow absorption of a fluid, produced by forming a sheet metal strip in which a closed profile is formed by: opposing wide walls, which are connected to each other via a respective forming a narrow wall forming areas, wherein the Wide and narrow walls form the outer sides of the profile, wherein a first wide wall is formed with a lying between side portions of the sheet metal strip inner portion of the sheet metal strip and a second wide wall is formed laterally with the inner portion arranged side portions of the sheet metal strip, wherein the first and the second wide wall with a the at least two chambers separating, an inner side of the profile forming web are connected, which web is formed with an edge portion of at least one of the side portions, wherein only one of the side portions has an edge portion, the through end of the second wide wall to the first wide wall, in particular its inner sides, extends and is integrally connected there at a contact point, wherein the continuous edge portion has at least two forming sections and at least one of the
  • the invention also relates to a heat exchanger with such a flat tube and a use of the heat exchanger. Furthermore, the invention relates to a multi-chamber flat tube with at least two chambers for flow absorption of a fluid produced by forming a sheet metal strip, in which a closed profile is formed by: opposing wide walls, which are connected to each other over one each forming a forming region narrow walls, wherein the broad and narrow walls form outer sides of the profile, wherein a first wide wall is formed with a lying between side portions of the sheet metal strip inner portion of the sheet metal strip and a second wide wall is formed laterally of the inner portion arranged side portions of the sheet metal strip, wherein the first and the second wide wall with a the at least two Kammem separating, forming an inner side of the profile web are connected.
  • the invention also relates to a heat exchanger with such a flat tube and a connection of the heat exchanger.
  • Multi-chamber flat tubes prove to be used in a heat exchanger - for example as in EP 1 213 555 B1 described - as increasingly attractive because they can be provided comparatively thin-walled and thus saving material and beyond in a relatively simple forming process, for example in a bending process and / or a folding process and / or a folding process, can be produced - such a forming process for example in US 6,615,488 B2 described.
  • As a result of the folding process described therein results in a multi-chamber flat tube of the so-called "B-type", because the profile of the multi-chamber flat tube has a reminiscent of a B shape course.
  • Another similar multi-chamber flat tube is in EP 1 213 555 B1 and in EP 0 811 820 B1 described.
  • edge portions of both the second wide wall forming side sections continuously guided from an inner side of the second wide wall to an inner side of the first wide wall and soldered there at a contact point. It has been shown that a multi-chamber flat tube of this so-called B-type is still in need of improvement.
  • EP 1 225 408 A2 shows a multi-chamber flat tube of the type mentioned, in which only one of the side portions has an edge portion which extends continuously from an inner side of the second wide wall to an inner side of the first wide wall and is integrally connected there at a contact point.
  • the edge section has at least two forming sections and at least one of the forming sections forms a contact surface for an edge section of the other side section.
  • the invention is whose task is to provide a multi-chamber flat tube, in which, in particular a pulling action of the web, the stability behavior and / or the compressive strength of the Mehrkam-mer flat tube is improved and yet the multi-chamber flat tube comparatively can be produced easily and inexpensively.
  • the object is achieved by the invention in a first part by means of a multi-chamber flat tube of the initially mentioned type in which according to the invention different variants of features are provided according to the characterizing part of claim 1, which can also be realized in combination with each other.
  • contact surface forming the forming portion of the continuous edge portion is oblique or perpendicular to formed second wide wall extending and at least one further forming section of the continuous edge portion is obliquely or at right angles to the forming the contact surface forming portion of the continuous edge portion running formed.
  • the edge section of the other side section is free of a forming section and part of the second wide wall.
  • edge portion of the other side portion only at right angles or parallel to second wide wall extending forming sections.
  • edge portion of the other side portion only on I-shaped or L-shaped arranged forming sections.
  • the invention has recognized that alone or in combination a new advantageous geometry of a profile of the multi-chamber flat tube is realized by the aforementioned variants, in which an increased pressure resistance is given.
  • the web is designed as a tie rod acting bridge in a manner superior to the prior art.
  • the edge sections forming the web can be designed for this purpose by means of the forming sections in such a way that the edge sections are in engagement with one another and / or are connected in a materially cohesive manner to a contact surface.
  • the web is connected in accordance with the invention in an advantageous manner cohesively with the first wide wall. This results in an inventively realized for the first time increased pressure resistance in the horizontal and vertical direction of the profile of the flat tube.
  • the contact point is formed by a flat contact of a forming section.
  • This makes it possible to realize a web which is fastened particularly securely on the inside of the first wide wall.
  • the contact point is formed by a conditioning of a forming edge between two forming sections.
  • this modification makes it possible to realize a web in which the Glasanker Ober can be made relatively soft or flexible, that is, the compressive strength at the same time safe and flexible.
  • a comparison of comparatively easily realized connection of the web can be achieved in that the contact point is formed over a system of a joint edge of the continuous edge portion.
  • a strength of the web can be further improved by the fact that at the contact surface of the at least one of the Umformabriske the continuous edge portion and the edge portion of the other side portion a material connection, in particular a solder joint, between the at least one of the Umformabête and the edge portion of the other side portion is formed.
  • This can be achieved by soldering the edge section and / or the forming sections of the continuous edge section one-sidedly or two-sidedly. In simpler cases, it may also be sufficient to have sufficient solder supply on the inside of the first wide wall Provide so that during soldering a sufficient amount of solder in the contact surface extends to set the forming portion of the continuous edge portion and the edge portion of the other side portion in sufficient manner to each other or to connect soldering.
  • the concept of the invention has proven to be particularly advantageous in a multi-chamber flat tube, in which at least one of the chambers is formed in a single wall.
  • the wall thickness of a chamber can be realized in a preferred manner below 0.2 mm.
  • the concept of the invention can also be embodied in a multi-chamber flat tube in which at least one of the chambers is formed with a plurality of walls, in particular two walls.
  • a wall thickness of a wall is below 0.2 mm - the total wall thickness of a chamber with multiple walls is thus advantageously below a multiple of 0.2 mm, with two walls, preferably below 0.4 mm.
  • a multi-walled multi-chamber flat tube can be done for example by suitable winding arrangements of the sheet metal strip. Alternatively, two or more profiles may be intermeshed to form a concentric wall assembly.
  • a tensile effect deploying web can be provided to form a multi-chamber flat tube with more than two chambers, one or more other such or other webs in the profile.
  • further webs may be formed by folding in the first and / or second wide wall. The latter has proven to be a particularly simple measure for the formation of further webs.
  • a multi-chamber flat tube of the type described above in a variety of, appropriate for an application Be formed manner.
  • a tube outer surface and / or a tube inner surface may be smooth.
  • Such a multi-chamber flat tube has a particularly low flow resistance.
  • a tube outer surface and / or a tube inner surface can be structured. It has been shown that for this purpose a multiplicity of different types of structural elements are suitable, in particular those which are selected from the group consisting of: dimples, winglets, ribs.
  • a multi-chamber flat tube of the type described above has proved to be particularly reliable for guiding a fluid under increased compressive strength and under particular effect of the tie rod unfolding web according to the concept of the invention.
  • the fluid may be a first fluid, in particular in the form of an exhaust gas and / or a charge air.
  • a multi-chamber flat tube is also suitable for a second fluid, preferably a coolant, in particular a coolant formed on a liquid basis.
  • a multi-chamber flat tube of the type described above is according to the concept of the invention for a heat exchanger for heat exchange between a first fluid on the one hand, in particular an exhaust gas and / or charge air and a second fluid on the other hand, in particular a coolant.
  • a heat exchanger according to the invention comprises: a block for the separate and heat exchanging guidance of the first and second fluid, with a number of flow passages through the first fluid, a first chamber receiving the flow passages through which the second fluid flows and a housing in the first the chamber and the flow channels are arranged.
  • a flow channel according to the invention formed in the form of a flat tube of the type explained above.
  • the invention also leads to a particularly preferred use of the heat exchanger according to the further independent claims, for example as a high-temperature or low-temperature heat exchanger - in both cases, for example, as an exhaust gas heat exchanger or as a charge air heat exchanger.
  • heat exchanger according to the concept of the invention has also proven to be suitable as an oil cooler or as a refrigerant or coolant cooler.
  • the initially described object is achieved by the invention in a second part by means of a multi-chamber flat tube of the last-mentioned type in which according to the invention, according to the characterizing part of claim 19, at least one of the chambers is formed with several walls and the web has at least two of these walls and at least one edge portion of the side portions is fastened to the web.
  • This part of the invention also pursues the concept of a web formed with a comparatively high tensile strength for increasing the compressive strength of the flat tube, wherein in addition the compressive strength of the multi-chamber flat tube is increased by providing a plurality of walls, in particular two walls.
  • At least one of the chambers is wound with several walls, in particular two walls.
  • the web also has at least two walls formed as part of the winding.
  • the multi-chamber flat tube can thereby be relatively easily produced by forming the sheet metal strip, for example in a suitably designed winding method.
  • two walls of the web may be formed by a folding.
  • At least one of the chambers can be formed with a plurality of concentrically nested walls, in particular two walls.
  • the web may preferably have at least two walls formed as part of the walls set into one another.
  • the edge portions of the side portions extends continuously from the second wide wall to the first wide wall, i. especially the insides of the wide walls.
  • an edge section of at least one of the side sections may adjoin the web.
  • the edge section can abut the web with a joint edge.
  • the web can be provided with an edge section of at least one of the side sections be formed.
  • the edge portion abut with a contact surface on the web.
  • the abutting edge of the edge section can also be exposed.
  • an abutting edge of the edge section can be secured to the inside of the first wide wall. This is particularly advantageous for a multi-chamber flat tube, which is formed with a plurality of concentric nested walls.
  • a single wall thickness can preferably be below 0.2 mm, and nevertheless a compressive strength of the multi-chamber flat tube can be ensured.
  • This is preferably improved by forming a fluid connection, in particular a solder connection, on one or more contact surfaces or points between walls.
  • further webs can be formed, in particular by folding in the first and / or second wide wall.
  • tube outer surface and / or inner tube surface can be made smooth or structured depending on the application.
  • the invention also leads to a heat exchanger and a corresponding use of the heat exchanger as can be found in the further independent claims.
  • the use of the heat exchanger as a high-temperature or low-temperature heat exchanger is advantageous.
  • the use of the heat exchanger, in particular an exhaust gas heat exchanger, as an exhaust gas cooler for exhaust gas cooling in an exhaust gas recirculation system of an internal combustion engine of a motor vehicle is advantageous.
  • the use of the heat exchanger in particular an exhaust gas heat exchanger, as a heater for the interior heating of a motor vehicle.
  • the use of the heat exchanger as a charge air cooler for direct or indirect cooling of charge air in a charge air supply system for an internal combustion engine of a motor vehicle is advantageous.
  • the heat exchanger is advantageous to use as an oil cooler, in particular for cooling engine oil and / or gear oil.
  • the use of the heat exchanger as a refrigerant or coolant radiator and / or refrigerant or refrigerant condenser in a Kätte- or coolant circuit of an air conditioner or engine cooling circuit of a motor vehicle.
  • At least one of the chambers is formed with a plurality of concentrically nested walls, in particular two walls, in particular the web has at least two walls formed as part of the nested walls.
  • an edge portion of at least one of the side portions in particular the edge portion abuts with a butt edge on the web.
  • the web is formed with an edge portion of at least one of the side portions, in particular the edge portion rests with a contact surface on the web.
  • a wall thickness is formed below 0.2 mm.
  • a tube outer surface and / or a tube inner surface is smooth.
  • a multi-chamber flat tube for guiding a fluid in a heat exchanger, in particular a first fluid, preferably in the form of an exhaust gas and / or a charge air, or a second fluid, preferably a coolant.
  • the use of the heat exchanger as a high-temperature or low-temperature heat exchanger is advantageous.
  • the use of the heat exchanger, in particular of an exhaust gas heat exchanger, as exhaust gas cooler for exhaust gas cooling in an exhaust gas recirculation system of an internal combustion engine of a motor vehicle is advantageous.
  • the use of the heat exchanger in particular an exhaust gas heat exchanger, as a heater for the interior heating of a motor vehicle.
  • the use of the heat exchanger as a charge air cooler for direct or indirect cooling of charge air in a charge air supply system for an internal combustion engine of a motor vehicle is advantageous.
  • the heat exchanger is advantageous to use as an oil cooler, in particular for cooling engine oil and / or gear oil.
  • the use of the heat exchanger as a refrigerant or coolant radiator and / or refrigerant or refrigerant condenser in a refrigerant or refrigerant circuit of an air conditioning system of a motor vehicle.
  • Fig. 1 shows the profile of a multi-chamber flat tube V1, with a first chamber 1 and a second chamber 2, in this case for the flow absorption of an exhaust gas and / or a charge air in a heat exchanger.
  • the multi-chamber flat tube V1 of Fig. 1 can, as well as the multi-chamber flat tubes V2 to V17 of Fig. 1 to Fig. 17 , in the present case serve as a flow channel in a block for the separate guidance of the exhaust gas and / or the charge air and a coolant in a housing of the heat exchanger.
  • the multi-chamber flat tube may be arranged in a suitable manner with a plurality of other multi-chamber flat tubes in the block, wherein the chambers 1, 2 are provided for flow with the exhaust gas and / or the charge air and the outer space of the multi-chamber flat tube in the Housing is provided for flushing with the coolant.
  • the multi-chamber flat tube V1 as well as the further explained below multi-chamber flat tubes V2 to V17 be provided with a suitable type and number of structural elements, not shown, to heat exchange between exhaust and / or supply air and the coolant to improve.
  • an outwardly directed tube outer surface facing away from the chambers 1, 2 and / or a tube inner surface facing the chambers 1, 2 can also be made smooth.
  • the multi-chamber flat tube V1 can be in the context of a bending, folding and folding - in principle similar to that in US 6,615,488 B2 described - produce particularly simple, but the forming of the sheet metal strip in the region of the web 3 takes place in a modified form.
  • the multi-chamber flat tube V1 has, as well as the other multi-chamber flat tubes V2 to V17 explained below, an opposing first wide wall 4 and second wide wall 6, which are connected to one another with narrow walls 5, 7 forming one forming area, wherein the wide walls 4, 6 and the narrow walls 5, 7 form outer sides of the profile.
  • the first wide wall 4 is formed with a lying between side portions of the sheet metal strip inner portion of the sheet metal strip.
  • the second wide wall 6 is formed in a first area 6A with a first side section of the sheet-metal strip arranged laterally of the inner section and formed in a second area 6B with a second side section of the sheet-metal strip arranged laterally of the inner section.
  • the first and the second wide wall with a at least two chambers separating, forming an inside of the profile web 3 is connected.
  • the web 3 is formed with an edge portion 3B of the second side portion, which is associated with the second region 6B.
  • edge portion 3B associated with the side section of the region 6B extends continuously from an inner side of the second wide wall 6 to the inside of the first wide wall 4 and is connected to the first wide wall 4 at a contact point 8, in the present case by means of a solder connection.
  • the edge section 3B of the profile V1 is presently formed with a first forming section 3B.1 and a second forming section 3B.2 by corresponding bending processes of the edge section 3B.
  • the first forming section 3B.1 forms with the edge section 3A of the other, the first area 6A assigned Side section a contact surface 9.
  • the first forming section 3B.1 and the edge section 3A are soldered together in the present case.
  • a solder joint is likewise provided on the side 9.1 of the contact surface 9 which opens toward the second wide-wall 6, said solder connection terminating smoothly with the outside of the second wide-wall 6.
  • the second forming section 3B.2 is soldered with its the inside of the first wide wall 4 facing bearing surface 9 in a particularly advantageous manner.
  • multi-chamber flat tubes V1 to V17 are the same reference numerals used for the same parts or parts with the same function.
  • Fig. 2 shows a multi-chamber flat tube V2, in which - again following the concept of the first variant of the invention - the contact surface 9 forming the first forming section 3B.1 obliquely to the second wide wall 6, wherein the second forming section 3B.2 perpendicular to the forming section 3B.1 runs.
  • the edge portion 3B is formed as a continuously extending from the second wide wall 6 to the first wide wall 4, the web 3 forming portion and connected to a contact point 8 cohesively.
  • the contact point 8 is formed by a conditioning of a forming edge between the forming section 3B.1 and the forming section 3B.2.
  • the other edge section 3A assigned to the side section of the area 6A in the present case has a first forming section 3A.1 and a second forming section 3A, wherein the first forming section 3A.1 forms a contact surface 9 with the forming section 3B.1, which also continues as a contact surface between the first forming section 3A.2 and the forming section 3B.2.
  • V-shaped, mutually oriented forming sections 3B.1, 3B.2 or 3A.1, 3A.2 are formed, wherein the edge portions 3B, 3A abut one another in a V-shaped contact surface 9 and the other edge portion 3A is inserted in the continuous edge portion 3B.
  • Fig. 3 shows an embodiment of a multi-chamber duct V3, similar to that in FIG Fig. 2
  • the continuous edge section 3B has a first forming section 3B.1, a second forming section 3B.2, a third forming section 3B.3 and a fourth forming section 3B.4.
  • the second and third forming section 3B.2, 3B.3 are presently formed as a fold of sections and return the v-shaped leg of the edge portion 3B to the forming section 3B.4, which advantageously a two-dimensional contact with the contact point 8 to the first Widescreen 4 forms.
  • contact point 8 is the attachment of the web and thus the compressive strength in the direction of the wide walls 4, 6 even further increased.
  • Fig. 4 to Fig. 7B show multi-chamber flat tubes V4 to V7B, which in realization of embodiments of the second variant of the invention have a continuous edge portion 3B, which has V-shaped, S-shaped, U-shaped, O-shaped or wound or folded arranged Umformabitese, the will be explained in more detail below.
  • a first forming section 3B.1 oriented at right angles to the second wide wall 6 is oriented, which makes it possible in a particularly simple manner to realize an edge section 3A formed with only a right-angled forming section, around the contact surface 9 between the forming section 3B .1 and the edge portion 3A.
  • multi-chamber flat tube V4 is formed by the present as folding, indirect structural element of Umformabêten 3B.2, 3B.3 a comparatively soft or flexible tie rod in the form of the web 3 between the first wide wall 4 and the second wide wall 6.
  • the continuous edge portion 3B also has an S-shaped structure - oriented horizontally - in the form of the fourth forming region 3B.4 and 3B.5, wherein the fifth forming region 3B.5 - similar to a previously explained, advantageous manner - a contact point 8 in Form of a contact surface to the inner wall of the first wide wall 4 forms.
  • Fig. 5 shows a further embodiment of a multi-chamber flat tube V5, in which the continuous edge portion 3B formed with forming sections 3B.1, 3B.2, 3B.3, which form as an indirect structural element an S-shaped structure - this time vertically aligned -, in particular to realize a comparatively soft or yielding tie rod effect between first wide wall 4 and second wide wall 6.
  • Fig. 6 to Fig. 7B realized multi-chamber flat tubes V6, V7A, V7B realize the concept of the second variant of the invention, also a comparatively soft or flexible trained tie rod in the form of a web 3, wherein also advantageously a contact point 8 to the first wide wall 4 in a particularly reliable manner is formed as a contact surface.
  • a lateral, in the direction of the narrow walls 5, 7 acting, pulling action of the web 3 is increased by the fact that the edge portion 3A - the same with reference to Fig. 2 and Fig. 3 explained principle of action - is engaged with the edge portion 3B.
  • the engagement is presently formed with U-shaped forming sections 3B.1, 3B.2, 3B.3 of the edge portion 3B.
  • the forming section 3B.3 is furthermore part of a folding realized with the forming section 3B.4.
  • the transition between forming sections 3B.3 and 3B.4 can, but need not, be positively connected at a contact point 8.1 with the second wide wall 6.
  • the winding is guided with a further forming section 3B.5, which is arranged at right angles to the forming section 3B.4-as the forming section 3B.5 forming the contact point 8-and the last forming section 3B.6 closing the winding.
  • the forming sections 3B.2 to the peripheral forming section 3B.6 thus form a closed winding structure in approximately an O-shape.
  • Fig. 7A shows an embodiment of a multi-chamber flat tube V7A, in which the indirect structural element of the web 3 in the edge portion 3B instead of o-shaped as in Fig. 6 - Formed with forming sections 3B.3, 3B.4, 3B.5 U-shaped, wherein the forming section 3B.5 forms a flat contact point to the first wide wall 4.
  • the folding between the forming sections 3B.3 and 3B.4 is not completely closed, but the forming sections 3B.3 and 3B.4 have an acute angle. This implements the related Fig.
  • a multi-chamber flat tube V7B substantially corresponds to that of the embodiment of the multi-chamber flat tube V7A of Fig. 7A
  • the forming area between the forming sections 3B.3 and 3B.4 no contact point - as denoted by 8.1 and 8.2 contact point in Fig. 6 and Fig. 7A - forms more, but instead is arranged at a distance 8.3 from the inside of the second wide wall 6.
  • the distance 8.3 further increases the flexibility of the continuous edge portion 3B formed as an indirect structure.
  • Fig. 8 to Fig. 10 show embodiments of multi-chamber flat tubes V8 to V10 according to the concept of the third variant of the invention, in which one edge portion 3A of the other portion 6B associated byab-section is free of a forming section and rather part of the second portion 6B of the second wide wall 6.
  • the embodiments of the multi-chamber flat tubes V8 to V10 are therefore particularly easy to produce, since the edge region 3A is undeformed and formed straight as part of the second region 6B of the second wide wall 6. Only the continuous edge portion 3B is present as a deformed band edge with forming sections 3B.1, 3B.2 and 3B.3 formed.
  • the forming sections 3B.1 and 3B.2 advantageously form the contact surface 9 between the edge section 3A and the forming section 3B.2 in the case of the multi-chamber flat tubes V8, V9, V10.
  • the forming sections 3B.1 and 3B.2 form a pawl-shaped receptacle with stop for the edge section 3A.
  • a similar folding structure is arranged horizontally to the first wide wall 4 and second wide wall 6 and formed with Umformabêten 3B.2 and 3B.3, wherein another forming section 3B.4 advantageously formed as a partial web folding 4.1 first wide wall 4 engages behind.
  • the principle of a lateral tension-preventing lateral tie rod in the form of the web 3 is realized.
  • the edge portion 3B is a continuously extending from the second wide wall 6 to the first wide wall 4 edge portion.
  • a contact point 8 is formed in the multi-chamber flat tubes V8 to V10 each have a line-shaped system.
  • this is a joint edge of the continuous edge portion 3B.
  • this is a forming area of the continuous edge portion 3B between the forming portions 3B.3 and 3B.4.
  • this is the contact line at the contact point 8 between the folding structure 4.1 and the lateral surface of the forming section 3B.3.
  • V10 eliminates two-sided solder plating, in contrast to the multi-chamber flat tube V9, and yet a tie rod effect is also ensured in the lateral direction.
  • the multi-chamber flat tubes V8 to V10 are therefore comparatively easy to manufacture embodiments - according to the concept of the third variant of the invention - yet the formation of the continuous edge portion 3B forms a substantially indirect structure, which is the preferred rather soft or yielding Tie rod effect - similar to that in the embodiments V4 to V7 - leads. It has been found that by providing such an indirect structure - i. Following the concept of the second variant of the invention - a multi-chamber flat tube is particularly easy to calibrate, i. by a slight excess of formed by bending or bending forming sections 3B., 3.B.1, etc., a contact 8 is ensured in a particularly secure manner. In addition, a contact surface 9 between the edge section 3A and the edge section 3B or a corresponding forming section 3B.2 can also be realized particularly reliably.
  • the embodiments of multi-chamber flat tubes V11 to V14 realize - according to the concept of the fourth variant of the invention - particularly simple embodiments, in which a continuous edge portion 3B as shown in the embodiment V11 forms an angular structure with forming sections 3B.1 and 3B.2 while the edge portion 3A is formed as a simply folded-over band end, ie has an I-shaped course. Again contacted only at the contact point 8 a contact surface of the edge portion 3 B, the first wide wall 4 on the inside.
  • a Switzerlandanker penal in the embodiments of the multi-chamber flat tubes V11 and V12 can be additionally secured in a special way by a two-sided Lotplatt réelle, in particular at the contact point 8 and the contact surface. 9
  • the edge portion 3A may also be formed by another forming section 3A.2, ie, to form an L-shaped course, or as in the embodiment of the multi-chamber flat tube V14 in FIG Fig. 14 shown to be supplemented by a folding structure with a forming section 3A.2.
  • the I-shaped structure of the continuous edge portion 3B are supplemented with a further forming section 3B.3, which forms a fold together with the forming section 3B.2.
  • a further forming section 3B.3 which forms a fold together with the forming section 3B.2.
  • Fig. 15 to Fig. 16 show embodiments of multi-chamber flat tubes V15, V16, V17, which exemplify the concept of the second part of the invention, in which a multi-chamber flat tube is double-walled and following a web 3 is at least double-walled with participation of these chamber walls and no edge portion continuous between the broad walls 4, 6 runs.
  • the profile is wound from a sheet metal strip, wherein at the in Fig. 15
  • the web 3 is formed exclusively by the winding structure, while the web 3 is adjoined by an edge section 3A of the side sections assigned to the regions 6A, 6B. In this case, an edge portion 3A abuts with a collision edge on the web.
  • Fig. 17 shows an evolution of the in US 6,615,488 B2 shown multi-chamber flat tube, in which a web 3 is formed four-walled and the multi-chamber flat tube V17 is composed essentially of three profiles.
  • the third profile V17.13 is like in US 6,615,488 B2 described, while to improve the compressive strength in the profile V17.3 another, inner profile V17.1 to form the first chamber 1 and a further inner profile V17.2 is used to form the second chamber 2 concentric.
  • the invention relates to a multi-chamber flat tube V1 - V17 with at least two chambers 1, 2 for flow absorption of a Fluids produced by forming a sheet metal strip, in particular produced in a bending and / or folding and / or folding process, in which a closed profile is formed by: opposing wide walls 4, 6, the opposite each forming a forming region narrow walls.
  • first wide wall 4 is formed with a lying between side portions of the sheet metal strip inner portion of the sheet metal strip and a second wide wall 6 is formed laterally of the inner portion disposed side portions of the sheet metal strip , wherein the first and the second wide walls 4, 6 are connected to a web 3 separating the at least two chambers 1, 2 and forming an inner side of the profile, which is formed with a marginal portion 3A, 3B of at least one of the side portions, only one of the Side sections has an edge portion 3 B, the dur extending from the second wide wall 6 to the first wide wall 4 and there is integrally connected to a contact point 8, in particular soldered, wherein the edge portion 3 B at least two forming sections 3B.1, 3B.2, 3B.3, 3B.4, 3B.
  • the invention provides the following, optionally in combination, possible measures.
  • a forming forming portion of the continuous edge portion 3B obliquely (V1-V3) or at right angles (V11-V14) to the second wide wall 6 and at least another forming section of the continuous edge portion 3B obliquely (V1-V3) or at right angles (V11-V14) to the forming the forming surface a forming section continuously extending edge portion.
  • a forming forming portion of the continuous edge portion 3B may be one of several v-shaped, s-shaped, u-shaped or o-shaped or wound or folded arranged Umformabroughen (V4-V7).
  • the edge portion 3A of the other side portion may be free of a forming portion and part of the first or second portion of the second wide wall 6 (V8-V10).
  • the edge section 3A of the other side section can only have forming sections running at right angles or parallel to the second wide wall.
  • the invention also leads to a multi-chamber flat tube (V15-V17) in which at least one of the chambers is formed with several walls, in particular two walls, and the web 3 has at least two walls and at least one edge portion 3A of the side portions is secured to the web. Furthermore, the invention leads to a corresponding heat exchanger and a corresponding use of the heat exchanger.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP08014698.8A 2007-08-20 2008-08-19 Tuyau plat à plusieurs chambres, échangeur thermique et utilisation d'un échangeur thermique Withdrawn EP2028431A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007039292A DE102007039292A1 (de) 2007-08-20 2007-08-20 Mehrkammer-Flachrohr, Wärmetauscher und Verwendung eines Wärmetauschers

Publications (2)

Publication Number Publication Date
EP2028431A2 true EP2028431A2 (fr) 2009-02-25
EP2028431A3 EP2028431A3 (fr) 2013-04-24

Family

ID=39938318

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08014698.8A Withdrawn EP2028431A3 (fr) 2007-08-20 2008-08-19 Tuyau plat à plusieurs chambres, échangeur thermique et utilisation d'un échangeur thermique

Country Status (3)

Country Link
US (1) US20090050306A1 (fr)
EP (1) EP2028431A3 (fr)
DE (1) DE102007039292A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013004759A1 (fr) * 2011-07-06 2013-01-10 Valeo Systemes Thermiques Tube d'echangeur de chaleur et echangeur comprenant de tels tubes.
EP2244044A3 (fr) * 2009-04-15 2017-01-11 BSH Hausgeräte GmbH Dispositif de condensation ainsi que pompe à chaleur et appareil ménager dotés d'un tel dispositif

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4297177B2 (ja) * 2007-04-03 2009-07-15 株式会社デンソー 熱交換器用チューブ
FR2962204B1 (fr) * 2010-06-30 2014-11-21 Valeo Systemes Thermiques Tube d'echangeur de chaleur, echangeur de chaleur comportant de tels tubes et procede d'obtention d'un tel tube.
US11353265B2 (en) 2018-07-03 2022-06-07 Ford Global Technologies, Llc Notched coolant tubes for a heat exchanger
US11346616B2 (en) * 2020-03-27 2022-05-31 Denso International America, Inc. Dimpled heat exchanger tube
EP4155651A1 (fr) * 2021-09-28 2023-03-29 Valeo Autosystemy SP. Z.O.O. Tube plat pour échangeur de chaleur

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0811820B1 (fr) 1996-06-05 2000-12-06 Valeo Thermique Moteur S.A. Tube plat à entretoise médiane pour échangeur de chaleur
EP1213555A1 (fr) 1999-09-08 2002-06-12 Zexel Valeo Climate Control Corporation Echangeur de chaleur, tube pour echangeur de chaleur, procede de fabrication de l'echangeur de chaleur et du tube
EP1225408A2 (fr) 2001-01-23 2002-07-24 Emerson & Renwick Ltd Tube d'échangeur de chaleur
JP2003202196A (ja) * 2002-01-07 2003-07-18 Denso Corp チューブ
US6615488B2 (en) 2002-02-04 2003-09-09 Delphi Technologies, Inc. Method of forming heat exchanger tube

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2690233B1 (fr) * 1992-04-21 1994-06-03 Valeo Thermique Moteur Sa Tube d'echangeur de chaleur a dispositif perturbateur integre.
US5186251A (en) * 1992-06-01 1993-02-16 General Motors Corporation Roll formed heat exchanger tubing with double row flow passes
FR2716529B1 (fr) * 1994-02-18 1996-04-26 Valeo Thermique Habitacle Tube plat résistant à l'écrasement pour échangeur de chaleur.
US5692300A (en) * 1995-04-17 1997-12-02 S. A. Day Manufacturing Co., Inc. Method for forming aluminum tubes and brazing a lockseam formed therein
FR2735853B1 (fr) * 1995-06-22 1997-08-01 Valeo Thermique Moteur Sa Tube plat pour echangeur de chaleur
DE19548495C2 (de) * 1995-12-22 2000-04-20 Valeo Klimatech Gmbh & Co Kg Wärmetauscherblock für Wärmetauscher für Kraftfahrzeuge und Verfahren zu dessen Herstellung
FR2772901B1 (fr) * 1997-12-23 2000-03-03 Valeo Thermique Moteur Sa Tube plie et brase pour echangeur de chaleur, et echangeur de chaleur comportant de tels tubes
DE19819248C1 (de) * 1998-04-29 1999-04-29 Valeo Klimatech Gmbh & Co Kg Flachrohr eines Heizungswärmetauschers oder Kühlers eines Kraftfahrzeugs
DE19819249C2 (de) * 1998-04-29 2001-02-22 Valeo Klimatech Gmbh & Co Kg Heizungswärmetauscher für Kraftfahrzeuge mit mehreren Klimatisierungszonen
GB2364770A (en) * 2000-07-11 2002-02-06 Delphi Tech Inc Heat exchanger and fluid pipe therefor
JP4471473B2 (ja) * 2000-08-24 2010-06-02 株式会社ティラド 熱交換器用偏平チューブおよびその製造方法
JP4524035B2 (ja) * 2000-12-06 2010-08-11 株式会社日本クライメイトシステムズ 熱交換器用チューブ
FR2832788B1 (fr) * 2001-11-26 2004-06-04 Valeo Climatisation Profils de tubes pour echangeur thermique
DE10158436A1 (de) * 2001-11-29 2003-06-12 Behr Gmbh & Co Wärmetauscher
WO2004005831A1 (fr) * 2002-07-09 2004-01-15 Zexel Valeo Climate Control Corporation Tube destine a un echangeur thermique
JP3956885B2 (ja) * 2003-04-03 2007-08-08 株式会社デンソー 熱交換器用チューブの製造方法及び装置
JP2004333023A (ja) * 2003-05-08 2004-11-25 Toyo Radiator Co Ltd アルミニューム製熱交換器用偏平チューブ
DE10328001A1 (de) * 2003-06-21 2005-01-05 Modine Manufacturing Co., Racine Flaches Wärmetauscherrohr
JP2005043026A (ja) * 2003-07-25 2005-02-17 Toyo Radiator Co Ltd 熱交換器用偏平チューブ
JP2005337527A (ja) * 2004-05-24 2005-12-08 Calsonic Kansei Corp 熱交換器の偏平チューブ
JP2006317027A (ja) * 2005-05-10 2006-11-24 Calsonic Kansei Corp 熱交換器用偏平チューブ
FR2886185B1 (fr) * 2005-05-30 2009-01-02 Valeo Systemes Thermiques Procede de brasage d'un tube plie d'echangeur de chaleur, notamment pour vehicules automobiles, et tube ainsi obtenu

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0811820B1 (fr) 1996-06-05 2000-12-06 Valeo Thermique Moteur S.A. Tube plat à entretoise médiane pour échangeur de chaleur
EP1213555A1 (fr) 1999-09-08 2002-06-12 Zexel Valeo Climate Control Corporation Echangeur de chaleur, tube pour echangeur de chaleur, procede de fabrication de l'echangeur de chaleur et du tube
EP1213555B1 (fr) 1999-09-08 2005-05-04 Zexel Valeo Climate Control Corporation Tube pour echangeur de chaleur et procede de fabrication du tube
EP1225408A2 (fr) 2001-01-23 2002-07-24 Emerson & Renwick Ltd Tube d'échangeur de chaleur
JP2003202196A (ja) * 2002-01-07 2003-07-18 Denso Corp チューブ
US6615488B2 (en) 2002-02-04 2003-09-09 Delphi Technologies, Inc. Method of forming heat exchanger tube

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2244044A3 (fr) * 2009-04-15 2017-01-11 BSH Hausgeräte GmbH Dispositif de condensation ainsi que pompe à chaleur et appareil ménager dotés d'un tel dispositif
WO2013004759A1 (fr) * 2011-07-06 2013-01-10 Valeo Systemes Thermiques Tube d'echangeur de chaleur et echangeur comprenant de tels tubes.
FR2977662A1 (fr) * 2011-07-06 2013-01-11 Valeo Systemes Thermiques Tube d'echangeur de chaleur et echangeur de chaleur comprenant de tels tubes

Also Published As

Publication number Publication date
DE102007039292A1 (de) 2009-02-26
US20090050306A1 (en) 2009-02-26
EP2028431A3 (fr) 2013-04-24

Similar Documents

Publication Publication Date Title
EP1281923B1 (fr) Tube plat pour échangeur de chaleur et procédé de fabrication
DE102006054814B4 (de) Gelötetes Flachrohr für Kondensatoren und/oder Verdampfer
DE102008007597A1 (de) Herstellungsverfahren Mehrkammer-Flachrohr, Wärmetauscher und Verwendung eines Wärmetauschers
EP2867602B1 (fr) Tube plat et échangeur de chaleur équipé d'un tel tube plat
EP2028431A2 (fr) Tuyau plat à plusieurs chambres, échangeur thermique et utilisation d'un échangeur thermique
DE102005002417A1 (de) Wärmeübertrager, insbesondere Ladeluftkühler oder Kühlmittelkühler für Kraftfahrzeuge
EP1774245A1 (fr) Echangeur thermique integralement metallique et procede de fabrication associe
DE69203387T2 (de) Wärmeaustauscher mit rohrförmigen Endkammern mit Querwänden und Methode zu seiner Herstellung.
DE102004057407A1 (de) Flachrohr für Wärmeübertrager, insbesondere Kondensatoren
EP1139052A2 (fr) Refroidisseur pour véhicules et procédé de fabrication
EP1391676A2 (fr) Echangeur de chaleur et sa méthode de fabrication
DE102006002932A1 (de) Wärmetauscher und Herstellungsverfahren für Wärmetauscher
EP1972879A2 (fr) Échangeur de chaleur, en particulier radiateur pour liquide de refroidissement dans un véhicule automobile
DE102005048407A1 (de) Aus einem profilierten gerollten Metallprodukt hergestellte Röhre und Verfahren zur Herstellung derselben
DE102008007611A1 (de) Mehrkammer-Flachrohr, Wärmetauscher und Verwendung eines Wärmetauschers
DE102007018722A1 (de) Kondensator
EP2049860B1 (fr) Ailette ondulée et échangeur de chaleur
DE102005043093A1 (de) Wärmetauscherrohr
DE102008007612A1 (de) Mehrkammer-Flachrohr, Wärmetauscher und Verwendung eines Wärmetauschers
DE102008007601A1 (de) Mehrkammer-Flachrohr, Wärmetauscher und Verwendung eines Wärmetauschers
DE102009041406B3 (de) Wärmeübertrager
DE102006018217A1 (de) Wärmetauscher für Kraftfahrzeuge
DE102005045539A1 (de) Innerer Wärmetauscher für einen Kältemittelkreislauf einer Klimaanlage
DE102008007610A1 (de) Mehrkammer-Flachrohr, Wärmetauscher und Verwendung eines Wärmetauschers
EP1748271A1 (fr) Tubes et ailettes pour bloc d'échange de chaleur

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

RIC1 Information provided on ipc code assigned before grant

Ipc: F28F 1/02 20060101ALI20120921BHEP

Ipc: F28D 1/03 20060101AFI20120921BHEP

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

RIC1 Information provided on ipc code assigned before grant

Ipc: F28D 1/03 20060101AFI20130219BHEP

Ipc: F28F 1/02 20060101ALI20130219BHEP

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

RIC1 Information provided on ipc code assigned before grant

Ipc: F28F 1/02 20060101ALI20130319BHEP

Ipc: F28D 1/03 20060101AFI20130319BHEP

17P Request for examination filed

Effective date: 20131024

RBV Designated contracting states (corrected)

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

17Q First examination report despatched

Effective date: 20140327

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: MAHLE BEHR GMBH & CO. KG

RBV Designated contracting states (corrected)

Designated state(s): DE FR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20190402

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20190813