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EP3450040A1 - Kühlerrohr, verfahren zum herstellen dieses kühlerrohrs und formrad zur verwendung in diesem verfahren - Google Patents

Kühlerrohr, verfahren zum herstellen dieses kühlerrohrs und formrad zur verwendung in diesem verfahren Download PDF

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Publication number
EP3450040A1
EP3450040A1 EP17188451.3A EP17188451A EP3450040A1 EP 3450040 A1 EP3450040 A1 EP 3450040A1 EP 17188451 A EP17188451 A EP 17188451A EP 3450040 A1 EP3450040 A1 EP 3450040A1
Authority
EP
European Patent Office
Prior art keywords
strip material
flat strip
wavy
cooler tube
openings
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Withdrawn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
EP17188451.3A
Other languages
English (en)
French (fr)
Inventor
Pawel Jedraszak
Andrzej Krupa
Michal Maleszka
Marcin Panek
Thierry Berger
Jaroslaw Rozanski
Lukasz ZYWICA
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 International GmbH
Original Assignee
Mahle International GmbH
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 Mahle International GmbH filed Critical Mahle International GmbH
Priority to EP17188451.3A priority Critical patent/EP3450040A1/de
Publication of EP3450040A1 publication Critical patent/EP3450040A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, rods, wire, tubes, profiles 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, rods, wire, tubes, profiles 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
    • B21C37/065—Manufacture of metal sheets, rods, wire, tubes, profiles 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 starting from a specific blank, e.g. tailored blank
    • 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
    • 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
    • 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
    • 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
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/40—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element
    • 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
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/126—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element consisting of zig-zag shaped fins
    • F28F1/128—Fins with openings, e.g. louvered fins
    • 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
    • F28F3/027—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 with openings, e.g. louvered corrugated fins; Assemblies of corrugated strips

Definitions

  • the present invention relates to a cooler tube according to the preamble of claim 1, a method for producing such a cooler tube according to claim 5, a mould wheel for use in this method according to claim 9 and a preferred use of the cooler tube according to claim 14.
  • a charge air cooler tube requires a suitable balance between high heat transfer coefficient, compressive strength and jacket and turbulator surface. These specifications determine the present design and manufacture of a charge air cooler tube in which the cooler jacket is manufactured separately from the turbulator made of a 'thicker' material or conversely the turbulator is manufactured separately from the cooler jacket made of 'thinner' material and both components are joined together subsequently.
  • a heat exchanger constructed of two components allows no reduction in the fabrication time and in addition no reduction in the material thickness of each of the components so that no weight reduction is achieved.
  • German Patent Application DE 10 205 043 093 A1 for example is a cooler tube in which two flat strip materials of different thickness are used for the separate construction of cooler jacket and turbulator (swirler)
  • the Japanese Patent Application JPH 10 193 085 A and also the European Patent Application EP 2 388 656 A2 disclose a cooler tube whose cooler jacket and also turbulator is folded from a single continuous flat strip material.
  • these only use smooth turbulators which are not suitable for a higher heat dissipation over a shorter distance.
  • Differently designed turbulators are known for example from the Japanese Patent Applications JP 6 313 691 A and JP 11 101 586 A .
  • a cooler tube is made of a continuous flat strip material which is folded into at least one elongated loop, which surrounds a closed cavity and which runs in the cavity in a wavy manner, wherein individual cooling channels are formed by contacting the loop and a wavy portion is formed from a respective edge region of the flat strip material and the loop is formed from the interposed centre region of the flat strip material.
  • the loop of the flat strip material has a higher material thickness than a wavy portion.
  • a cooler tube designed in such a manner can be produced in a particularly simple manner from a single continuous flat-strip material and is also particularly light as a result of the weight-reduced turbulator. As a result of its reduced material thickness, this can additionally have more corrugations so that the capacity of the cooler tube is overall improved.
  • this alternatively or additionally has alternative or additional openings, preferably regularly arranged opening patterns.
  • the capacity of the cooler tube is also increased by the turbulence-generating openings which act like a standard offset panel in a turbulator.
  • the material thickness of the flat strip material can be achieved in this case in a simple manner in the moulding process of the cooler tube by stretching and/or perforation of the edge zones.
  • the openings are designed to be polygonal and/or slot-like and are preferably arranged spatially offset with respect to one another.
  • a polygonal design of the openings allows a particularly good turbulence of the fluid stream not only at the edges of an opening however formed, but also at the corners thereof which provide for a secure flow separation.
  • Slot-like openings are particularly strong on turbulence as a result of the separation length of their edges.
  • the slot-like openings preferably in this case run in the longitudinal and/or transverse direction of at least one cooling channel so that a particularly efficient turbulence is obtained which is required for better contact of the cooling channel walls.
  • the flat strip material has lamellae in the wavy portion which allows the specific guiding of the fluid stream beyond the pure openings and increases the turbulence.
  • the cooler tube here preferably has regularly arranged lamella patterns so that a wide-area turbulence is ensured.
  • the preceding object is also solved by a method for producing the described cooler tube in which respective edge zones of a continuous flat strip material are folded in a wavy manner and an interposed centre region of the flat strip material is folded in an elongated loop shape around a wavy portion so that these form individual cooling channels by contacting the loop, characterized in that the edge zones of the flat strip material are stretched before or during the wavy folding so that these have a smaller material thickness than the centre region thereof and/or are previously provided with openings, preferably with opening patterns.
  • the advantage of this method can in particular be seen in that by means of a skilful selection and ordering of the process steps, only a single workpiece is required to obtained the cooler tube according to the invention.
  • the method according to the invention is particularly simple and efficient and the manufacture of a cooler tube is extremely cost-effective.
  • a significant weight reduction of the cooler tube fabricated therefrom can be achieved.
  • a portion to be folded in a wavy manner is previously provided with lamellae, preferably with lamella patterns in order to enable a specific and preferably wide-area guiding of the fluid stream.
  • the lamellae can be attached in this process step for example by stamping rollers or dies known per se.
  • the flat strip material is provided with notches to form fold edges, in particular in its centre region, with the result that the folding process is significantly simplified without making the method of manufacture itself more complicated. This is because these notches can be produced by stamping rollers or dies known per se, ideally together with the openings in the flat band material.
  • a wavy portion is formed with a mould wheel which is pressed into the flat strip material and rolled therein.
  • a mould wheel can in particular be rolled in a running flat material strand, which enables a particularly efficient and simple processing of the strand before cutting into individual cooler tubes to be folded.
  • openings and/or lamellae can be produced simultaneously in the flat band material.
  • a stretching of the material can be performed by using the mould wheel.
  • a mould wheel for use in a method of manufacture described for a cooler tube, having a cross-sectional profile configured to be wavy when viewed in the circumferential direction and projections and /or recesses arranged regularly along the circumference thereof for pressing correspondingly moulded openings and/or lamellae into the flat strip material.
  • the mould wheel or wheels of a last moulding station before the folding process of the flat strip material can in this case for example hav side teeth which attach the openings in the flat strip material and/or produce offsets in the material which are suitable for making the fluid stream turbulent.
  • the projections and/or recesses are arranged on at least one of the bilateral flanks of the wavy cross-sectional profile. It is thus possible to process both flanks of one corrugation at the same time which additionally allows a matched shaping and arrangement of embossings which ensures particularly good turbulence.
  • the projections and/or recesses are designed to be polygonal and/or elongated and are preferably arranged spatially offset with respect to one another with the result that correspondingly shaped openings can be produced with or without lamellae positioned thereon, which ensure a flow separation at their edges and in particular at their corners.
  • the elongated projections and/or recesses are aligned in the running direction or transversely to the running direction of the mould wheel, with the result that particularly efficient turbulence is achieved with the consequence of higher heat transfer at a cooling channel wall.
  • the elongated projections and/or recesses are formed for pressing lamella-reinforced openings which enables a simultaneous turbulence as a result of flow separation edges and also specific guiding of the fluid stream.
  • opening-free embossings in the flat strip material such as, for example, spherical or cubic offsets which bring about a flow separation.
  • a cooler tube fabricated in such a manner should preferably be used as a cooler or condenser, in particular a charge air cooler for an internal combustion engine of a vehicle.
  • cooler tube of the previously described type as or in a cooler or condenser, in particular as a charge air cooler for an internal combustion engine of a vehicle.
  • FIG. 1a shows a perspective view of a part of the cooler tube 1 according to the invention.
  • the cooler tube 1 is produced from a flat strip material 2, the edge zones of which on both sides are formed into wavy portions 6, 6' and run in a cavity 4 which is formed by a loop 3 of the flat strip material 2 which in turn is produced from the centre region 8 thereof. Together with the inner walls of the loop 3, the wavy portions 6, 6' form individual cooling channels 5 in which a fluid can flow.
  • the wavy portions 6, 6' are provided with openings 9 arranged in a pattern, which in this embodiment of the cooler tube 1 are designed to be square. The acute-angled position and offset arrangement of these openings 9 in the inflow direction provides for sufficient turbulence of the fluid stream in the individual cooling channels 5.
  • the cooler tube 1 consists of precisely one single piece of continuous flat strip material 2 which can be produced by skilful stretching, perforating and folding, rapidly, simply and cost-effectively.
  • the number, arrangement and shape of the openings 9 can be selected as required.
  • a cooler tube 1 having a low weight is produced since the portions 6, 6' running in a wavy manner have a reduced material thickness, here due to stretching and perforating than the loop 3 which borders them.
  • Figure 1b shows a perspective view of the cooler tube 1 of Figure 1a with folded edge zones 7, 7'. Between these edge zones 7, 7' the flat strip material 2 has a centre region 8 which provides longitudinally running notches on the edges to be folded subsequently in order to make the folding process of the loop 3 simpler.
  • FIG 1c shows a perspective view of the left edge zone 7 of the cooler tube 1 of Figure 1b .
  • the openings 9 arranged in a pattern can again be seen, which openings serve on the one hand to produce turbulence of the fluid stream but on the other hand reduce the material thickness of this portion once again, this being already reduced by corresponding stretching, for example by flat rolling of the flat strip material 2 in the region to the left of the dot-dash line.
  • a cooler tube 1 which is at the same time light and highly efficient can be produced by extremely simple processing of the flat strip material 2.
  • Figures 2a to 2i show a sequence of the method for producing the cooler tube 1 of Figure 1a .
  • Figure 2a initially shows the flat strip material 2 with its two edge zones 7, 7' and an interposed centre region 8.
  • Figure 2b the edge zones 7, 7' are stretched, wherein the centre region 8 remains approximately the same.
  • edge zones 7, 7' are perforated in Figure 2c , that is provided with openings 9 arranged in patterns before, in Figure 2d , these regions are folded in a wavy manner before being finally folded in the direction of the centre region 8 of the future cooler tube 1 in Figure 2e .
  • the longitudinally running notches are applied in Figure 2d which supports the folding of the future edges.
  • Figure 2f finally shows the future wavy portions 6, 6' folded towards the centre of the flat strip material 2, which are folded further towards the centre of the flat strip material 2 in Figures 2g and 2h , and finally received completely in the loop 3 thereby formed which together with this forms individual cooling channels 5.
  • the method of manufacture is thus reasonably simple, efficient and cost-effective and results in a cooling tube 1 that is reduced in weight and additionally extremely effective.
  • Figure 3a shows a perspective view of a cooler tube 1 according to the invention with slot-like openings 9' and lamellae 10 which are attached spatially offset with respect to one another in an already-folded edge zone 7 of a flat strip material 2.
  • the combination of slot-like openings 9' and lamellae 10 produced at the same time allows particularly efficient turbulence of the fluid flowing in the subsequent cooling channels.
  • the openings 9' and the relevant lamellae 10 in each case can be produced in a single fabrication step and for example applied by means of a mould wheel according to the invention over the length of the flat strip material 2.
  • Figure 3b shows the section A-A through a corrugation of the future cooler tube of Figure 3a .
  • the lamellae 10 are formed from the material of the slot-like openings 9' which is possible for example as a result of a corresponding stamping process.
  • the arrangement of opening 9' and lamella 10 can be arranged on both flanks of a corrugation of the folded edge zone 7 in order to achieve the highest possible turbulence density of the fluid with thus increased heat exchange.
  • Figure 4a shows a first mould wheel 11 according to the invention for use in the previously described method of manufacture of Figures 2a to 2i .
  • the mould wheel 11 has projections 12 which are arranged offset with respect to one another on its bilateral flanks 13 and produces the combination of slot-like opening 9 and appurtenant lamella 10 of Figure 3b when it is rolled in the flat strip material 2.
  • the cross-sectional profile of the rolling surface of the mould wheel 11 can be selected in precisely the same way as the projections 12 so that a specifically desired wave shape and therefore configuration of the cooling channels with openings and/or lamellae is produced.
  • the cooling channels 5 can for example have a box-shaped, triangular or different wave form.
  • the projections 12 of the mould wheel 11 must not necessarily form openings 9' but can merely be designed to produce spherical or cubic embossings which also produce turbulence.
  • Figure 4b shows a second mould wheel 11' according to the invention for use in the method of manufacture of Figures 2a to 2i .
  • this has a cross-sectional profile of its rolling surface provided with interior flanks 13 and is provided with recesses 12' arranged offset thereon, which for example produce the previously described embossings in the flat strip material 2 of the cooler tube of Figure 3b to be folded.
  • These embossings are also conducive to the turbulence of a fluid flowing in the cooling channels and can be attached to the bilateral flanks of a corrugation of the edge zone 7.
  • mould wheel 12, 12' allows a particularly simple and rapid as well as cost-effective folding and perforation of the edge zones 7, 7' of a flat strip material 2, which can be simultaneously stretched by the use of the mould wheel 12, 12'.
  • the method of manufacture therefore only consists of the use of the mould wheel 12, 12' on the edge zones 7, 7' of the flat strip material 2, alternatively the application of notches to facilitate edge formation and the subsequent folding of the wavy portions 6, 6' into a loop 3 in order to produce a light and at the same time efficient cooler tube 1.
  • Such a cooler tube 1 is characterized in particular by a high heat exchange capacity over shortest distances which mean that it can preferably be used as cooler and condenser, in particular as a charge air cooler for a small and high-performance internal combustion engine of a vehicle.

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  • 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)
EP17188451.3A 2017-08-30 2017-08-30 Kühlerrohr, verfahren zum herstellen dieses kühlerrohrs und formrad zur verwendung in diesem verfahren Withdrawn EP3450040A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP17188451.3A EP3450040A1 (de) 2017-08-30 2017-08-30 Kühlerrohr, verfahren zum herstellen dieses kühlerrohrs und formrad zur verwendung in diesem verfahren

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17188451.3A EP3450040A1 (de) 2017-08-30 2017-08-30 Kühlerrohr, verfahren zum herstellen dieses kühlerrohrs und formrad zur verwendung in diesem verfahren

Publications (1)

Publication Number Publication Date
EP3450040A1 true EP3450040A1 (de) 2019-03-06

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Application Number Title Priority Date Filing Date
EP17188451.3A Withdrawn EP3450040A1 (de) 2017-08-30 2017-08-30 Kühlerrohr, verfahren zum herstellen dieses kühlerrohrs und formrad zur verwendung in diesem verfahren

Country Status (1)

Country Link
EP (1) EP3450040A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL131902U1 (pl) * 2023-12-28 2025-06-30 Politechnika Poznańska Turbulizator spalin
CN121162756A (zh) * 2025-11-18 2025-12-19 山东省水利工程局有限公司 一种减少重力坝混凝土产生温度裂缝的冷却管道及工艺

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5049784A (de) * 1973-09-05 1975-05-02
JPS5249960A (en) * 1975-10-17 1977-04-21 Itaya Seisakusho Roll mold for producing fin for heat exchanging
US4562630A (en) * 1980-10-21 1986-01-07 Gunnar Larsson Method for the manufacture of heat exchanger elements
DE3725602A1 (de) * 1987-08-01 1989-02-09 Sueddeutsche Kuehler Behr Flachrohr fuer einen waermetauscher
JPH06313691A (ja) 1993-04-27 1994-11-08 Calsonic Corp 熱交換器用扁平伝熱管の製造方法
JPH10193085A (ja) 1997-01-13 1998-07-28 Shinko Alcoa Yuso Kizai Kk 熱交換器用偏平管
JPH11101586A (ja) 1997-09-26 1999-04-13 Toyo Radiator Co Ltd 熱交換器用偏平チューブ
US20020038500A1 (en) * 2000-07-25 2002-04-04 Mando Climate Control Corporation Method and apparatus for manufacturing coolant tube of heat exchanger
EP1439921A1 (de) * 2001-10-25 2004-07-28 Sundhagen, Lena Verfahren und werkzeug zur bereitstellung von konvexitäten
DE102005043093A1 (de) 2005-09-10 2007-03-15 Modine Manufacturing Co., Racine Wärmetauscherrohr
EP2388656A1 (de) 2010-05-17 2011-11-23 Brother Kogyo Kabushiki Kaisha Tonerbehälter mit Blende und Entwicklungsvorrichtung mit dem Tonerbehälter
DE102014200708A1 (de) * 2014-01-16 2015-07-16 MAHLE Behr GmbH & Co. KG Flachrohr
EP3184948A1 (de) * 2015-12-21 2017-06-28 Mahle International GmbH Rohrkörper sowie herstellungsverfahren

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5049784A (de) * 1973-09-05 1975-05-02
JPS5249960A (en) * 1975-10-17 1977-04-21 Itaya Seisakusho Roll mold for producing fin for heat exchanging
US4562630A (en) * 1980-10-21 1986-01-07 Gunnar Larsson Method for the manufacture of heat exchanger elements
DE3725602A1 (de) * 1987-08-01 1989-02-09 Sueddeutsche Kuehler Behr Flachrohr fuer einen waermetauscher
JPH06313691A (ja) 1993-04-27 1994-11-08 Calsonic Corp 熱交換器用扁平伝熱管の製造方法
JPH10193085A (ja) 1997-01-13 1998-07-28 Shinko Alcoa Yuso Kizai Kk 熱交換器用偏平管
JPH11101586A (ja) 1997-09-26 1999-04-13 Toyo Radiator Co Ltd 熱交換器用偏平チューブ
US20020038500A1 (en) * 2000-07-25 2002-04-04 Mando Climate Control Corporation Method and apparatus for manufacturing coolant tube of heat exchanger
EP1439921A1 (de) * 2001-10-25 2004-07-28 Sundhagen, Lena Verfahren und werkzeug zur bereitstellung von konvexitäten
DE102005043093A1 (de) 2005-09-10 2007-03-15 Modine Manufacturing Co., Racine Wärmetauscherrohr
EP2388656A1 (de) 2010-05-17 2011-11-23 Brother Kogyo Kabushiki Kaisha Tonerbehälter mit Blende und Entwicklungsvorrichtung mit dem Tonerbehälter
DE102014200708A1 (de) * 2014-01-16 2015-07-16 MAHLE Behr GmbH & Co. KG Flachrohr
EP3184948A1 (de) * 2015-12-21 2017-06-28 Mahle International GmbH Rohrkörper sowie herstellungsverfahren

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL131902U1 (pl) * 2023-12-28 2025-06-30 Politechnika Poznańska Turbulizator spalin
PL74228Y1 (pl) * 2023-12-28 2026-01-05 Politechnika Poznańska Turbulizator spalin
CN121162756A (zh) * 2025-11-18 2025-12-19 山东省水利工程局有限公司 一种减少重力坝混凝土产生温度裂缝的冷却管道及工艺

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