EP1887304B1 - Échangeur de chaleur, en particulier pour des véhicules - Google Patents

Échangeur de chaleur, en particulier pour des véhicules Download PDF

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Publication number
EP1887304B1
EP1887304B1 EP20060016506 EP06016506A EP1887304B1 EP 1887304 B1 EP1887304 B1 EP 1887304B1 EP 20060016506 EP20060016506 EP 20060016506 EP 06016506 A EP06016506 A EP 06016506A EP 1887304 B1 EP1887304 B1 EP 1887304B1
Authority
EP
European Patent Office
Prior art keywords
passages
heat exchanger
passage
conical
ribs
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.)
Not-in-force
Application number
EP20060016506
Other languages
German (de)
English (en)
Other versions
EP1887304A1 (fr
Inventor
Werner Dipl.-Ing. Helms
Wolfgang Dr.-Ing. Kramer
Thomas Dipl.-Ing. Ruppel
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
Mahle Behr Spain SA
Original Assignee
Behr GmbH and Co KG
Frape Behr SA
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, Frape Behr SA filed Critical Behr GmbH and Co KG
Priority to EP20060016506 priority Critical patent/EP1887304B1/fr
Priority to DE200650005118 priority patent/DE502006005118D1/de
Publication of EP1887304A1 publication Critical patent/EP1887304A1/fr
Application granted granted Critical
Publication of EP1887304B1 publication Critical patent/EP1887304B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • F28F1/24—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 and extending transversely
    • F28F1/32—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 and extending transversely the means having portions engaging further tubular elements

Definitions

  • the invention relates to a heat exchanger, in particular for motor vehicles according to the preamble of claim 1 - known by the DE 10 2005 032 812 A1 the applicant.
  • the conicity of the passages is used in the manufacture of the block, d. H. when threading the tubes in the passages of a ribbed package as an insertion, without which an automatic production would not be possible.
  • JP 02154992 A a soldered system has been known with flat tubes and flat ribs, which have openings with collars for receiving the flat tubes.
  • the openings have a larger one Cross-section than the flat tubes and thus allow easy insertion of the tubes.
  • the collar walls attach to the flat sides of the flat tubes and form a Lotspalt for a firm soldering.
  • the passages project with their tip region into the foot region of the adjacent passages.
  • the height of the passages is thus greater than the rib pitch, d. H. the distance of the ribs, measured in the longitudinal direction of the tubes.
  • the solder gap is reduced in the foot region of the passage, d. H. for a complete filling of the solder gap less solder is needed.
  • the advantages of a better soldering an increase in the component strength and a guarantee of the thermodynamic performance of the system are achieved.
  • the increase in strength is achieved by a quasi-wall thickness increase.
  • a further advantage is that the solution according to the invention is cost-neutral and neither an additional process step nor additional material expenditure is required.
  • Another advantage is that pockets susceptible to corrosion due to complete filling of the solder gaps are avoided; the corrosion resistance of the system is thus improved.
  • the overlap between the passes ie the difference between the height h of the passage and the rib pitch t is less than 40% of the rib pitch, preferably less than 20% of the rib pitch.
  • the improved soldering achieves a reinforcing effect on the connection between the pipe and the ribbed passage.
  • the overlapping of the passages according to the invention is coupled on the one hand to the tube width b R and on the other hand to the rib pitch t - the following limit cases may arise: a) the tube width is relatively large and the rib pitch relatively low, ie the rib density relatively high.
  • the single FIGURE shows a section through a connection between a flat tube 1 of a heat exchanger, not shown, and two adjacent ribs 2, 3 of a rib package, not shown completely.
  • Tube 1 and ribs 2, 3 are thus part of a not fully illustrated rib / tube block.
  • the flat tube 1 has a flat-oval cross-section with a width b R (the width extends transversely to the flow direction of the air, which sweeps perpendicular to the plane of the drawing over the ribs 2, 3.
  • the ribs 2, 3 are substantially planar; what is not shown - have known gill panels to increase the air-side heat transfer.
  • the ribs 2, 3 have conically shaped passages 4, 5 (also called collar) with a height h, measured in the longitudinal direction of the tube I. Passages 4, 5 form a circumferential soldering gap 6 with the flat tube 1.
  • the ribs 2, 3 arranged parallel to one another have a spacing t, the so-called rib pitch
  • the conical passages 4, 5 each have a foot region 4a, 5a with a maximum width b D and a Tip area 4b, 5b on. The width of the foot region 5a or 4a is greater than the width of the flat tube 1: b D > b R.
  • the tip region 5b of the passage 5 protrudes into the foot region 4a of the adjacent passage 4 and forms with this an overlap ü which corresponds to the difference between the passage height h and the rib pitch t.
  • the solder is - as described in the aforementioned application of the Applicant - as Lotplatt réelle on the ribs 2, 3 or the pipe 1 or deposited on ribs and pipe and flows due to the capillary action in the Lotspalt 6, which - due to its invention reduction - now completely can be filled so that a firm soldering can be done.
  • This brings an increase in the strength of the tube by a quasi-wall thickness increase.
  • the thermal conductivity between pipe and rib is improved, corrosion-prone pockets are avoided.
  • the passage or collar need not circulating, d. H. be closed over the entire circumference, but may also have interruptions in the form of columns or recesses.
  • Pipe and rib are preferably made of aluminum materials and are brazed, for details regarding the soldering method, reference is made to the above-mentioned application of the applicant.
  • the spacing of the ribs may be achieved by means known in the art, e.g. Turbulators take place in the ribs.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)

Claims (5)

  1. Echangeur de chaleur, en particulier pour des véhicules automobiles, comprenant un bloc brasé se composant de tubes plats (1) et d'ailettes (2, 3) configurées sensiblement de façon plane, où les ailettes (2, 3) sont disposées en étant parallèles les unes par rapport aux autres, suivant un espacement t (écartement d'ailettes), et présentent des passages coniques (4, 5) qui sont traversés par les tubes plats (1) et, avec ceux-ci, forment des interstices de brasage (6),
    caractérisé en ce que les passages coniques (4, 5) présentent, par rapport au plan des ailettes (2, 3), une hauteur h pour laquelle s'applique la règle de mesure suivante : h ≥ t.
  2. Echangeur de chaleur selon la revendication 1,
    caractérisé en ce que les passages (4, 5) présentent une zone de base (4a, 5a) et une zone de pointe (4b, 5b), et en ce que la zone de pointe (5b) d'un passage (5) pénètre dans la zone de base (4a) du passage voisin (4).
  3. Echangeur de chaleur selon la revendication 1 ou 2,
    caractérisé en ce que des passages (4, 5), voisins dans le sens longitudinal 1 du tube plat (1), forment un chevauchement (ü) pour lequel s'applique la relation suivante : 0 ≤ ü ≤ 0,4 t, de préférence 0 ≤ ü ≤ 0,2 t.
  4. Echangeur de chaleur selon la revendication 3,
    caractérisé en ce que l'interstice de brasage (6), dans la zone du chevauchement (ü), est formé par deux faces inclinées (4a, 5b) disposées de façon parallèle l'une par rapport à l'autre.
  5. Echangeur de chaleur selon la revendication 2, 3 ou 4,
    caractérisé en ce que la zone de base (5a) du passage conique (5) présente une largeur bD, le tube plat (1) présentant une largeur bR. largeurs pour lesquelles s'applique la relation suivante : bD > bR.
EP20060016506 2006-08-08 2006-08-08 Échangeur de chaleur, en particulier pour des véhicules Not-in-force EP1887304B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP20060016506 EP1887304B1 (fr) 2006-08-08 2006-08-08 Échangeur de chaleur, en particulier pour des véhicules
DE200650005118 DE502006005118D1 (de) 2006-08-08 2006-08-08 Wärmeübertrager, insbesondere für Kraftfahrzeuge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20060016506 EP1887304B1 (fr) 2006-08-08 2006-08-08 Échangeur de chaleur, en particulier pour des véhicules

Publications (2)

Publication Number Publication Date
EP1887304A1 EP1887304A1 (fr) 2008-02-13
EP1887304B1 true EP1887304B1 (fr) 2009-10-14

Family

ID=37685328

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20060016506 Not-in-force EP1887304B1 (fr) 2006-08-08 2006-08-08 Échangeur de chaleur, en particulier pour des véhicules

Country Status (2)

Country Link
EP (1) EP1887304B1 (fr)
DE (1) DE502006005118D1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2598821B1 (fr) * 2010-07-26 2019-08-28 Carrier Corporation Échangeur de chaleur avec tubes et ailettes en aluminium

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1330725A (fr) * 1961-07-11 1963-06-28 Henry Potez Ets Ailette pour échangeur thermique et échangeur en comportant application
DE2854233A1 (de) * 1978-12-15 1980-07-03 Apparatebau Wiesloch Gmbh Lamellierte rohre als waermetauscherrohre, bestehend aus verschiedenen werkstoffen zwischen rohr und lamellen
GB2110811A (en) * 1981-11-28 1983-06-22 Salter & Co Ltd G Finned tube heat exchanger members
PL369487A1 (pl) * 2004-08-09 2006-02-20 Delphi Technologies, Inc. Wymiennik ciepła pojazdów samochodowych

Also Published As

Publication number Publication date
EP1887304A1 (fr) 2008-02-13
DE502006005118D1 (de) 2009-11-26

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