US20080135220A1 - Heat Exchanger - Google Patents

Heat Exchanger Download PDF

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Publication number
US20080135220A1
US20080135220A1 US11/815,348 US81534806A US2008135220A1 US 20080135220 A1 US20080135220 A1 US 20080135220A1 US 81534806 A US81534806 A US 81534806A US 2008135220 A1 US2008135220 A1 US 2008135220A1
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United States
Prior art keywords
heat exchanger
plate
lobes
tank
tubes
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.)
Abandoned
Application number
US11/815,348
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English (en)
Inventor
Cahit Aksoy
Hubert Pomin
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
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Behr GmbH and Co KG
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Filing date
Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=36581720&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=US20080135220(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Behr GmbH and Co KG filed Critical Behr GmbH and Co KG
Assigned to BEHR GMBH & CO. KG reassignment BEHR GMBH & CO. KG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: POMIN, HUBERT, AKSOY, CAHIT
Publication of US20080135220A1 publication Critical patent/US20080135220A1/en
Abandoned legal-status Critical Current

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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
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
    • F28F9/0224—Header boxes formed by sealing end plates into covers

Definitions

  • the invention relates to a heat exchanger as per the preamble of claim 1 .
  • FIG. 36 A section through a conventional heat exchanger is illustrated in FIG. 36 .
  • a tank is closed off by a plate which has a plurality of openings which are formed by rim holes which extend in the direction of the tank and project into the ends of flat tubes.
  • the plate has a peripheral bead into which the end of the tank projects, with a sealing ring being arranged so as to provide sealing between the end of the tank and the plate.
  • the plate is attached to the tank for example by means of corrugated slot flanging.
  • a heat exchanger of said type leaves something to be desired.
  • EP 0 990 868 A2 discloses a heat exchanger having a plurality of tubes whose ends plug into rim holes around the opening in the tube plates, which rim holes point toward the heat exchanger network, the cross section of which rim holes is arched inward, and which rim holes are metallically connected therein in a fluid-tight manner, with different heat-exchanging media flowing through the tubes and around the tubes.
  • the tube ends extend to below the level of the tube plate surface.
  • the tube ends form, with the rim holes, an encircling contact face which is adjoined at both sides by a solder gap between the tube and the rim hole.
  • the plate has a peripheral bead into which the end of the tank projects, with a sealing ring being arranged between the end of the tank and the lowest region of the bead.
  • a heat exchanger having a plurality of tubes and having at least one tank which is closed off by means of a plate which is provided with openings and into which the at least one end of the tubes opens out, with the plate having a plurality of individual lobes and/or beads.
  • the lobes are preferably formed in the plate regions between the tubes, that is to say in the region of the webs between the openings which hold the tubes, and at the longitudinal-side ends of the plate.
  • the lobes can assume the function of the peripheral bead which is dispensed with according to the invention, wherein the heat exchanger can be of narrower design, since the lobes which replace the peripheral bead are indented between the openings or the tubes.
  • the length of the lobes is preferably a maximum of 50%, in particular a maximum of 45%, a maximum of 40% and particularly preferably a maximum of 25% of the length of the openings which hold the tubes.
  • the length of the individual lobes is preferable 5 to 25 mm, particularly preferably 10 to 15 mm.
  • the lobes can be designed so as to run continuously over the entire length of the webs, as well as at the edge regions, and parallel to the webs, with the lobes in this embodiment being referred to in the following as beads. Said beads also offer the same advantages as the previously mentioned lobes over the known peripheral beads.
  • the lobes and/or beads rise in the longitudinal extent of the tubes toward the tank, that is to say away from the heat exchanger network.
  • the plate additionally has an improved fatigue strength under alternating pressure loading.
  • the lobes and/or beads serve, with their ends which point toward the plate edge, to hold the tank.
  • the lobes and/or beads are preferably formed by means of a shaping process, in particular in a working step with the production of the rim holes and the bending of the sides.
  • the plate-edge-side end of said rim holes is formed so as to absorb the forces which occur during assembly and which press the tank together, so that a collapse of the tank is avoided and therefore the impermeability of the connection of the tank and plate can be ensured.
  • the lobes and/or beads preferably have a constant height over their entire length.
  • the edge-side end of the lobes and/or beads can however also be of higher design then the inward-pointing end, which can if appropriate also end flat.
  • the openings which receive the tubes are preferably formed as rim holes. Said rim holes preferably extend in the direction of the tubes, that is to say away from the tank.
  • the tubes preferably end flush with, or if appropriate also project slightly beyond, the rim holes.
  • the rim holes can however also be designed corresponding to EP 0 990 868 A2.
  • the plate is preferably of planar design—with the exception of the lobes, beads and rim holes—and the longitudinal and narrow-side ends of the plate are preferably bent around, adjacent to a planar region, at an angle of 80 to 90° in the direction of the tank, with a sufficient bending radius being provided.
  • the tank preferably has a lug which protrudes in the direction of the plate and which is formed spaced apart from the periphery of the tank.
  • a lug of said type is in principle also possible in the case of an encircling bead.
  • a seal is preferably arranged at the outer peripheral side of the lug, wherein said seal can be a sealing ring or a seal which is injection-molded onto the tank.
  • the sealing ring can in this case be either mounted onto the tank or mounted into the plate, and therefore assembly can be simplified. In the case of a seal which is injection-molded on, the assembly step can be dispensed with.
  • the seal has ear-like retaining elements which can be or are hooked into cutouts provided at the corners of the plate.
  • the seal can be particularly advantageously assembled or hooked into the provided cutouts, or can be particularly advantageously hooked into the provided cutouts.
  • the height of the lug preferably corresponds approximately to the height of the lobes and/or beads, so that the lug additionally protects the edge of the tank against damage.
  • the lug and lobe or bead also come into contact with one another if appropriate.
  • the tank has, in the vicinity of its plate, on its inner peripheral side, inwardly extending ribs or projections.
  • the lobes and/or beads can be moved further inward into the plate.
  • the local material reinforcement of the plate-side part of the tank is designed such that the tubes are not blocked, so that the flow is not hindered.
  • the ribs or projections preferably bear against the lobes and/or beads, in order to absorb the forces which occur in particular during the assembly.
  • the openings for the tubes preferably extend in between the ribs or projections, so that the heat exchanger can be of narrower design than conventional heat exchangers.
  • the height of the ribs or projections preferably reduces in the direction into the tank.
  • FIG. 1 shows a detail side view of a heat exchanger according to the first exemplary embodiment, with the tank partially indicated,
  • FIG. 2 shows a section along the line A-A in FIG. 1 ,
  • FIG. 3 shows a section along the line C-C in FIG. 1 ,
  • FIG. 4 shows a plan view of a plate from FIG. 1 from the direction of the indicated tank
  • FIG. 5 shows a section along the line D-D in FIG. 4 .
  • FIG. 6 shows a section along the line E-E in FIG. 4 .
  • FIG. 7 shows a side view of the heat exchanger from FIG. 1 , with the tank partially illustrated,
  • FIG. 8 shows a perspective view of the heat exchanger from FIG. 1 , with the tank partially illustrated,
  • FIG. 9 shows a perspective view of the plate
  • FIG. 10 shows a view of the plate from another perspective
  • FIG. 11 is a perspective detail illustration of a corner region of the plate
  • FIG. 12 shows a perspective view of the heat exchanger from FIG. 1 , with an illustration of the base region of the tank,
  • FIG. 13 shows another perspective view of the heat exchanger from FIG. 1 with an illustration of the base region of the tank
  • FIG. 14 is a detail illustration of a heat exchanger according to the second exemplary embodiment, with the tank illustrated in section,
  • FIG. 15 shows a section along line A-A in FIG. 14 .
  • FIG. 16 shows a perspective view of a plate according to the third exemplary embodiment
  • FIG. 17 shows a plan view of the plate from FIG. 16 .
  • FIG. 18 is a detail section illustration along the line A-A in FIG. 17 .
  • FIG. 19 is a detail section illustration along the line B-B in FIG. 17 .
  • FIG. 20 is a detail section illustration along the line C-C in FIG. 17 .
  • FIG. 21 is a detail section illustration along the line D-D in FIG. 17 , with the left-hand part illustrating the section profile through a flat tube, and the right-hand part illustrating the section profile through a bead, in each case in the region of the tank wall and without the illustration of a sealing element,
  • FIG. 22 shows a side view of the plate from FIG. 16 .
  • FIG. 23 shows another side view of the plate from FIG. 16 .
  • FIG. 24 is a detail section illustration along the line F-F in FIG. 17 , in the assembled but not yet fixedly connected state of the plate and tank,
  • FIG. 25 shows a schematic detail side view of a heat exchanger with a plate according to the fifth exemplary embodiment
  • FIG. 26 shows a section through the plate and a part of a tank, which has been placed thereon, along the line A-A in FIG. 25 ,
  • FIG. 27 shows a section through the plate and a part of a tank, which has been placed thereon, along the line B-B in FIG. 25 ,
  • FIG. 28 shows a perspective view of the plate from FIG. 25 from the direction of the tank
  • FIG. 29 shows a perspective view of the plate from FIG. 25 from the direction of the flat tubes
  • FIG. 30 is a detail perspective illustration of the heat exchanger from FIG. 25 with a plate placed thereon and a sealing ring mounted in,
  • FIG. 31 shows a plan view of the plate of the heat exchanger from FIG. 25 with a sealing ring mounted in
  • FIG. 32 shows a section through the plate with the tank, sealing ring and flat tubes, along the line C-C in FIG. 31 ,
  • FIG. 33 shows a section through the plate with the tank, sealing ring and flat tubes, along the line D-D in FIG. 31 ,
  • FIG. 34 shows a section through the plate with the tank, sealing ring and flat tubes, along the line E-E in FIG. 31 ,
  • FIG. 35 shows a side view of the heat exchanger from FIG. 25 .
  • FIG. 36 shows a section through a conventional heat exchanger.
  • FIG. 1 shows a heat exchanger 1 , in the present case a compact charge air cooler, composed of two tanks 3 which are closed off by plates 2 and of a plurality of tubes 4 which extend between the tanks 3 .
  • the tubes 4 are embodied as flat tubes and project with their ends 5 into openings 6 , which are embodied as rim holes corresponding to the outer dimensions of the tubes 4 , in the plate 2 .
  • the rim holes point in the direction of the tubes 4 , with the tubes 4 ending in each case approximately flush with the face, which faces toward the corresponding tank 3 , of the plates 2 in the present case (cf. FIG. 2 ).
  • the plate 2 which is formed as a sheet metal punched and bent part, also has a plurality of elevations in the form of lobes 7 which extend in the direction of the tank 3 , that is to say rise above the plate base plane B.
  • the lobes 7 are produced by means of a shaping process.
  • two first lobes 7 a are arranged in each case in the region of the ends of the webs between two openings 6 , and three second lobes 7 b are arranged at the narrow-side end of the plate 2 (cf. FIG. 4 ).
  • the length of the first knob 7 a and also of the second knob 7 b is approximately 22% of the length of the openings 6 , that is to say of the rim holes and therefore of the (greater) width of the flat tubes, with the first knobs 7 a in the present case having a length of 15 mm.
  • the longitudinal-side and narrow-side ends of the plate 2 are, in the assembled state which is not illustrated, to be bent around at right angles with respect to the tank 3 , with cutouts being provided in each case at the corners 8 of the plate 2 .
  • a plurality of slots 9 which serve for the connection of the plate 2 and tank 3 by means of the known corrugated slot flanging, that is to say individual material parts of the plate 2 engage behind the corresponding end regions, which are provided with a shoulder 10 , of the tank 3 .
  • the slots 9 are in the present case arranged in each case at the height of the openings 6 (longitudinal side) and of the second lobes 7 b (narrow side).
  • the plate-side end of the tank 3 is provided with a peripheral lug 11 which is formed on the inner peripheral side and extends in the direction of the plate 2 , so that a shoulder 12 for holding a sealing ring 13 is formed (see FIGS. 2 and 3 ).
  • the sealing ring 13 is mounted onto said shoulder 12 , with the mounting taking place during the assembly and before the tank 3 is placed onto the plate 2 .
  • the sealing ring 13 is in the present case a sealing ring 13 with a circular profile, though other profiles, in particular oval or rectangular profiles (flat seal) are also possible.
  • sealing ring 12 is also alternatively possible for the sealing ring 12 to be mounted onto the plate 2 by means of retaining elements which are formed on the sealing ring 12 and are clamped into cutouts which are provided at the corners 8 of the plate 2 .
  • This particularly preferred embodiment is explained in more detail with reference to the fifth exemplary embodiment which is described at a later point.
  • the seal is formed so as to be injection-molded directly onto the tank 3 in the shoulder 12 , so that incorrect assembly of the sealing ring can be avoided.
  • the tank 3 is placed on and the seal is compressed.
  • the closure then takes place by means of corrugated slot flanging, with the lobe 7 which is integrated into the plate 2 serving to support the tank 3 against the forces which act as a result of the closure device, so that a collapse of the tank 3 and associated permeability is avoided.
  • battlement-like ribs 14 are formed on the inner peripheral side of the tank 3 , which ribs 14 interact with the first lobes 7 a which are offset further rearward in the longitudinal direction of the webs between the openings 6 .
  • the ribs 14 on the tank 3 extend to the plate-side end of the lug 11 .
  • the ribs 14 are designed so as to reduce in height above the first lobes 7 a.
  • FIGS. 16 to 24 illustrate a plate 2 according to the third exemplary embodiment.
  • lobes referred to in the following as beads 7 ′, which extend over substantially the entire width of the plate 2 , are formed with a substantially continuous cross-sectional profile (see FIG. 18 ), which beads 71 are in the present case formed by means of shaping, that is to say corresponding to the lobes 7 a and 7 b.
  • the webs between the openings 6 have edges 6 ′ (rim holes) which run in the direction of the flat tubes which are to be introduced, approximately perpendicularly to the plate 2 , which edges 6 ′ have an arcuate transition in the direction of the plate base plane B, that is to say of the plate 2 without beads 7 ′ which are continuous in the web longitudinal direction.
  • the bead 7 ′ is subsequently formed, with the bead 7 ′ likewise having arcuate transitions.
  • the cross section of each web has three radii whose central points are arranged within the web, and two radii whose central points are arranged outside the web, that is to say the transitions are in each case formed as circular-arc sections, though the curvature profile of the individual transitions can also vary.
  • one continuous bead 7 ′ is also arranged at the narrow-side edge regions of the plate 2 instead of the three lobes 7 b according to the first exemplary embodiment.
  • the plate base plane B is not formed by a face as in the first two exemplary embodiments, it is defined by the turning point of the curvature profiles of rim holes and beads 7 ′, as indicated in the detail view X of FIG. 18 .
  • the flat tube ends of the flat tubes 4 which are arranged in the openings between the webs project, in the assembled and soldered state, slightly beyond the plate base plane B—that is to say the plane which has the plate without formed beads—but it is also possible for said flat tube ends to end flush with the plate base plane B or to project to the end of the beads and if appropriate also beyond.
  • the tank 3 is attached in the way described in the first exemplary embodiment.
  • the lobes are designed such that the narrowing ends of the lobes substantially directly adjoin one another in the central longitudinal plane of the plate, that is to say the two lobes are approximately designed as a single, continuous lobe.
  • a heat exchanger 1 again a charge air cooler, has two tanks which are closed off by plates 2 , and a plurality of tubes 4 which extend between the tanks 3 .
  • the tubes 4 are embodied as flat tubes, and corrugated fins are arranged between two tubes.
  • the tubes 4 project with their ends 5 into openings 6 , which are embodied as rim holes corresponding to the outer dimensions of the tubes 4 , in the plates 2 .
  • the rim holes point in the direction of the tubes 4 , with the tubes 4 in each case projecting slightly beyond the plates 2 in the present case (see FIG. 32 ).
  • each second lobes 7 b which are arranged in a row and, in the present case, are of corresponding design to one another, are provided at the narrow-side end of the plate 2 (cf. FIG. 28 ).
  • the length of the first lobes 7 a and of the second lobes 7 b corresponds to one another, but their design differs, that is to say their groove shape.
  • the first lobes 7 a have an approximately V-shaped design of substantially constant height, while the second lobes 7 b have a more U-shaped profile which is rounded off toward the center of the plate and, in the outward direction, is of steeper design and has a substantially constant height.
  • the longitudinal-side and narrow-side ends of the plate 2 are, in the assembled state, to be bent around at right angles with respect to the tank 3 , with cutouts being provided in each case at the corners 8 of the plate 2 .
  • the cutouts serve to receive on a sealing ring 13 which is mounted into the plate 2 and which has, at its four corners, ear-shaped retaining elements 13 ′ which are connected in one piece with the sealing ring 13 by means of a web.
  • the sealing ring 13 In contrast to sealing rings which are arranged on conventional plates and which are placed under tension into an outer peripheral groove and are clamped in by the tank, the sealing ring 13 lies on a planar face in the plate base plane B, with said sealing ring 13 being clamped in a rectangular shape in a defined manner by the retaining elements 13 ′ which are held in the cutouts so that good sealing can be ensured between the tank and the plate.
  • the sealing ring 13 has, in the present case, a circular cross section, through in principle, some other cross section can also be provided, for example a rectangular cross section.
  • a plurality of slots 9 which serve for the connection of the plate 2 and tank 4 by means of the known and corrugated slot flanging.
  • the length of the first knobs 7 a and also of the second knobs 7 b is approximately 20% of the length of the openings 6 , that is to say of the rim holes and therefore of the (greater) width of the flat tubes, with the first knobs 7 a in the present case having a length of 10 mm.

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  • 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)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
US11/815,348 2005-02-03 2006-02-03 Heat Exchanger Abandoned US20080135220A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102005005180.4 2005-02-03
DE102005005180 2005-02-03
PCT/EP2006/000971 WO2006082084A1 (de) 2005-02-03 2006-02-03 Wärmetauscher

Publications (1)

Publication Number Publication Date
US20080135220A1 true US20080135220A1 (en) 2008-06-12

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ID=36581720

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/815,348 Abandoned US20080135220A1 (en) 2005-02-03 2006-02-03 Heat Exchanger

Country Status (5)

Country Link
US (1) US20080135220A1 (ja)
EP (1) EP1846718B2 (ja)
JP (1) JP5264181B2 (ja)
CN (1) CN101111736B (ja)
WO (1) WO2006082084A1 (ja)

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US20150096725A1 (en) * 2013-10-04 2015-04-09 Denso International America, Inc. Tank for heat exchanger
US20150285571A1 (en) * 2014-04-04 2015-10-08 Mahle International Gmbh Heat exchanger
US20160377357A1 (en) * 2013-12-13 2016-12-29 Valeo Systemes Thermiques Collection box and corresponding heat exchanger
US10126064B2 (en) 2015-08-07 2018-11-13 Denso Corporation Heat exchanger
US10317148B2 (en) 2013-11-27 2019-06-11 Denso Corporation Heat exchanger
EP3367039A4 (en) * 2015-10-22 2019-06-19 T.RAD Co., Ltd. HEAT EXCHANGER AND METHOD FOR ASSEMBLING THE SAME

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EP2031337A1 (de) * 2007-08-30 2009-03-04 Behr France Rouffach SAS Rohrboden eines Wärmeübertragers und Wärmeübertrager, insbesondere für Kraftfahrzeuge
FR2933178A1 (fr) * 2008-06-26 2010-01-01 Valeo Systemes Thermiques Echangeur de chaleur et carter pour l'echangeur
DE102011085479A1 (de) * 2011-10-28 2013-05-02 Behr Gmbh & Co. Kg Wärmeübertrager
CZ2012317A3 (cs) * 2012-05-14 2013-11-27 Halla Visteon Climate Control Corporation Sberná hlavová nádrz
JP6551293B2 (ja) * 2016-04-20 2019-07-31 株式会社デンソー 熱交換器
GB2550952B (en) * 2016-06-02 2020-07-01 Denso Marston Ltd A header plate for a heat exchanger
CN106337725A (zh) * 2016-11-02 2017-01-18 宁波沃特汽车部件有限公司 新型中冷器主板
PL3388773T3 (pl) * 2017-04-14 2021-02-08 Valeo Autosystemy Sp. Z.O.O. Wymiennik ciepła dla pojazdów silnikowych
CN110730896B (zh) * 2017-06-13 2021-03-12 马瑞利株式会社 罐安装构造和罐安装方法
JP6872433B2 (ja) * 2017-06-13 2021-05-19 マレリ株式会社 タンク取り付け構造
JP6841196B2 (ja) * 2017-09-27 2021-03-10 株式会社デンソー 熱交換器およびその製造方法
CN108571378A (zh) * 2018-06-14 2018-09-25 东风贝洱热系统有限公司 一种汽车中冷器主片
WO2022143949A1 (zh) * 2020-12-31 2022-07-07 昆山方佳机械制造有限公司 一种壳管式换热器

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US5297624A (en) * 1991-07-02 1994-03-29 Thermal-Werke Warme-, Kalte-, Klimatechnik Gmbh Header for a flat tube liquefier
US5226490A (en) * 1992-10-26 1993-07-13 General Motors Corporation Extruded tank pocket design for separator
US5492172A (en) * 1994-05-26 1996-02-20 Valeo Thermique Moteur Reinforced header plate for a heat exchanger
US5758721A (en) * 1995-12-13 1998-06-02 Valeo Thermique Moteur Heat exchanger header plate, a method for making it, and a heat exchanger having such a header plate
US20020029874A1 (en) * 2000-02-10 2002-03-14 Patrick Boisselle Heat exchanger with improved sealing gasket, for a motor vehicle in particular
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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150096725A1 (en) * 2013-10-04 2015-04-09 Denso International America, Inc. Tank for heat exchanger
US9829252B2 (en) * 2013-10-04 2017-11-28 Denso International America, Inc. Tank for heat exchanger
US10317148B2 (en) 2013-11-27 2019-06-11 Denso Corporation Heat exchanger
US11162743B2 (en) 2013-11-27 2021-11-02 Denso Corporation Heat exchanger tank
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US10401097B2 (en) * 2014-04-04 2019-09-03 Mahle International Gmbh Heat exchanger
US10126064B2 (en) 2015-08-07 2018-11-13 Denso Corporation Heat exchanger
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JP2008528930A (ja) 2008-07-31
JP5264181B2 (ja) 2013-08-14
EP1846718A1 (de) 2007-10-24
EP1846718B1 (de) 2012-06-13
CN101111736A (zh) 2008-01-23
CN101111736B (zh) 2010-05-19
EP1846718B2 (de) 2016-02-10
WO2006082084A1 (de) 2006-08-10

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