WO2002018853A1 - Unite de collecteur et bac d'echangeur thermique - Google Patents

Unite de collecteur et bac d'echangeur thermique Download PDF

Info

Publication number
WO2002018853A1
WO2002018853A1 PCT/GB2001/003905 GB0103905W WO0218853A1 WO 2002018853 A1 WO2002018853 A1 WO 2002018853A1 GB 0103905 W GB0103905 W GB 0103905W WO 0218853 A1 WO0218853 A1 WO 0218853A1
Authority
WO
WIPO (PCT)
Prior art keywords
casing
unit according
unit
header
tank
Prior art date
Application number
PCT/GB2001/003905
Other languages
English (en)
Inventor
Graham Foster
Original Assignee
Llanelli Radiators Limited
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 Llanelli Radiators Limited filed Critical Llanelli Radiators Limited
Priority to AU2001284219A priority Critical patent/AU2001284219A1/en
Publication of WO2002018853A1 publication Critical patent/WO2002018853A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/04—Condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0202—Header boxes having their inner space divided by partitions
    • F28F9/0204—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions
    • F28F9/0214—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only longitudinal partitions
    • F28F9/0217—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only longitudinal partitions the partitions being separate elements attached to header boxes
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/044—Condensers with an integrated receiver
    • F25B2339/0441—Condensers with an integrated receiver containing a drier or a filter
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2220/00—Closure means, e.g. end caps on header boxes or plugs on conduits

Definitions

  • the present invention relates to a heat exchanger header and tank unit, and particularly to such a unit for incorporation in condensers for use in automotive air conditioning systems.
  • a heat exchanger header and tank unit comprising a header zone and a tank zone, the header zone and tank zones being defined by a dividing element provided internally of a casing of the unit, a communication pass permitting fluid communication between the header zone and the tank zone.
  • the communication pass preferably permits fluid to pass across the dividing element between ' the header zone and the tank zone, preferably comprising an aperture formed through the width of the dividing element.
  • a plurality of passes may be provided between respective zones of the tank zone and the header zone .
  • the dividing element preferably includes one or more baffle portions inhibiting fluid flow between spaced header zone portions.
  • the baffle portions define contra-flow sections of the heat exchanger permitting the heat exchange fluid in the heat exchange tubes of the exchanger to make multiple passes across the heat exchanger. In contra flow sections the flow in the tubes across the heat exchanger is in opposed directions.
  • the baffle portion is beneficially integrally formed with the dividing element (preferably in a pressing operation) .
  • the baffle portion preferably comprises a wall section formed as an apex or crest.
  • the baffle portion is preferably contiguous with an internal surface of the casing of the unit .
  • the dividing element beneficially includes opposed sidewalls and a spanning portion, the sidewalls extending adjacent wall portions of the internal surface of the unit casing. This facilitates bonding between the dividing element and the casing which will typically be achieved by brazing where the respective components are of aluminium.
  • the dividing element is preferably configured, with or without the unit casing, to provide a longitudinally extending header including one or more header zones having opposed closed ends.
  • the dividing element is preferably of smaller (thinner) gauge material ' than the material of the casing. This provides weight (and cost) benefits.
  • the unit casing beneficially includes a series of apertures or openings for receiving the terminal portions of a respective plurality of heat exchange tubes, the openings or apertures preferably being defined through a surface of the casing in a proud standing portion of the casing.
  • the proud standing portion of the casing defines, internally of the casing, a recess within which the dividing element is capable of being at least partially received.
  • the unit casing is desirably of two or more piece construction. This enables the dividing piece to be fitted in position and the casing pieces subsequently assembled. Casing pieces are preferably joined/bonded (for example brazed) at a seam extending in the longitudinal direction of the unit.
  • the unit casing preferably includes a first trough casing piece and a second trough casing piece, the first and second trough casing pieces fitted together along respective edges.
  • One of the casing pieces beneficially includes a shoulder or step adjacent its terminal edge for accommodating the terminal edge of the other casing piece in edge overlapping relationship. This enables the pieces to be mated together for bonding (brazing) .
  • fold over tabs or the like may be provided for the casing pieces and dividing element to enable the arrangement to be held in an assembled state ready for bonding/brazing, typically in a one-shot process, this technique is known in the art.
  • the casing pieces are preferably configured to define a closed end for the unit.
  • the casing pieces are configured to define an opening at one end of the unit which opening is closed by an end cap.
  • the opening permits other components such as desiccant products or filters to be introduced into the casing. Typically the opening will communicate into the tank zone portion of the unit.
  • the tank zone may vary in cross sectional area at longitudinally spaced positions. This permits larger or lesser volumes of condensed refrigerant to be accommodated.
  • the tank zone may include a step zone connecting zones of different cross sectional area.
  • a desiccant product may be disposed in the tank zone in order to absorb any water moisture.
  • a filter may be disposed in the tank zone.
  • At least a portion of the unit casing preferably comprises a pressed aluminium component.
  • the unit casing preferably comprises a plurality of aluminium components brazed together.
  • the dividing element is preferably of aluminium and brazed to an aluminium portion of the unit casing.
  • the unit is particularly beneficial for use in automotive air conditioning systems.
  • the method comprising assembling a dividing element with a first casing piece to define one of a header zone and a tank zone, and assembling a second casing piece with the first casing piece to define the other of a tank zone and a header zone; the divider and first casing piece and the first and second casing pieces being bonded together.
  • Figure 1 is a perspective view of a heat exchanger header and tank unit according to the invention.
  • Figure 2 is a side view of the unit of Figure 1 ;
  • Figure 3 is a schematic sectional view along the length of the unit of the preceding figures.
  • Figure 4 is a sectional view along A-A in Figure 2.
  • FIG. 5 is a sectional view along B-B in Figure 2.
  • an integrated header and tank unit 1 for a condenser for use in an automotive air conditioning system.
  • the header and tank unit 1 comprises a first casing shell 2, and second casing shell 3, both of aluminium and brazed along a longitudinally running seam 4.
  • Both aluminium casing shells 2 are pressed components, shell 2 being pressed to have a projecting header formation 5, comprising projecting spaced walls 6,7, and a spanning portion 8.
  • Spanning portion 8 is provided with a series of spaced aperture plungings 9.
  • Aperture plungings 9 are shaped and dimensioned to accept the refrigerant containing tubes 10 of the condenser, which are also of aluminium and brazed at the point of entry into the header.
  • Casing shell 2 has an outwardly deflected edge defining a shoulder and permitting overlap of the casing edges 2a, 3a at the brazed seam 4. (This is shown most clearly in Figures 4 and 5.)
  • an aluminium divider 12 received and brazed within the internal recess defined by the projecting header formation 5.
  • Divider 12 comprises spaced longitudinally running side walls 13,14, connected by spanning portion 15, and longitudinally opposed end walls 16,17.
  • the divider 12 is a pressed opponent including transverse pressed crest portions 18, the apexes of which are brazed to the internal wall of the projecting header wall 8, of casing shell 2.
  • the divider 12 could be simply a flat elongate strip pressed to form the crest portions 18 and brazed to traverse spaced walls 6, 7 opposite spanning portion 8 of header formation 5. This dispenses with the need for sidewalls 13, 14 and makes for a lighter, lower cost product.
  • spaced header zones 20,21,22 are defined, each in communication with end of specific sets of heat exchange tubes 10.
  • the heat exchanger tubes 10 are spaced along the entire length of the header and tank unit 1.
  • the spaced header zones 20,21,22 provide for refrigerant flow across the condenser in multi-pass fashion, the flow of refrigerant in tubes connected with the spaced header zones 20,21,22 being in opposed directions.
  • Spaced communication apertures 23,24 are provided through the divider 12 permitting condensed refrigerant to pass into the tank portion 25 of the unit.
  • the tank portion 25 acts as a receiver/drier component, collecting the condensed refrigerant and passing the refrigerant through a desiccant sack 26 (to remove water moisture) and filter 27 (to remove unwanted debris) .
  • Casing shell 3 defining the outer wall of the tank 25, can be shaped as required to accommodate different volumes of refrigerant as required for a particular technical application.
  • the casing 3 includes a step region 30, between a zone of relatively large tank volume per unit length and a zone of relatively small tank volume per unit length.
  • the step portion can be used to step to a zone of increased volume per unit length relative to the volume per unit length defined by the majority of the casing.
  • the casing shells 2,3 have closure lips to define a brazed sealed end at one end of the unit. At the other end of the unit, the casing shells 2,3 define an opening within which collar 34 is fitted and subsequently a sealing cap and clip 35 used to seal the unit. Because the casing shells are pressed components, shoulders and other formations can be provided for ease of mounting within the vehicle and/or for positioning components of the condenser/receiver drier. For example, a pressure switch 37 may be accommodated on a press formed shoulder.
  • the unit is typically assembled with the condenser as a whole to be brazed in a ⁇ one-shot' brazing process.
  • divider 12 is stationed in the internal recess defined by the header projection 5, either by being a push fit or by the use of clips or tabs (which may be provided on one or either of the components) .
  • the casing shells 2,3 are then brought together and held (again typically by overlapping tabs provided on the casing shells 2/3) .
  • This type of component securing ready for brazing is already known in the art.
  • An open end to the casing is defined, into which a collar 34 is fitted, and the assembly brazed.
  • Collar 34 includes an opening through which desiccant sack 25 and filter 27 can be inserted, positioned and secured within the tank 25 (following brazing) . The open end is then closed by sealing cap and clip 35.
  • the packaging envelope is reduced in size.
  • the volume of liquid can be optimised for a particular application.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

L'invention concerne une unité (1) de collecteur et bac d'échangeur thermique (utile notamment pour condenseur de climatiseur d'automobile), qui comprend un collecteur (20, 21, 22) intégré et un bac (25) défini par un élément (12) diviseur prévu à l'intérieur de l'enveloppe de l'unité (1). Un passage (23, 24) permet une communication de fluide entre le collecteur (20, 21, 22) et le bac (25). Ce passage (23, 24) peut comporter une ouverture formée dans la largeur de l'élément (12) diviseur.
PCT/GB2001/003905 2000-08-31 2001-08-31 Unite de collecteur et bac d'echangeur thermique WO2002018853A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001284219A AU2001284219A1 (en) 2000-08-31 2001-08-31 A heat exchanger header and tank unit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0021346.2 2000-08-31
GB0021346A GB2366363B (en) 2000-08-31 2000-08-31 A heat exchanger header and tank unit

Publications (1)

Publication Number Publication Date
WO2002018853A1 true WO2002018853A1 (fr) 2002-03-07

Family

ID=9898561

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2001/003905 WO2002018853A1 (fr) 2000-08-31 2001-08-31 Unite de collecteur et bac d'echangeur thermique

Country Status (3)

Country Link
AU (1) AU2001284219A1 (fr)
GB (1) GB2366363B (fr)
WO (1) WO2002018853A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005052470A1 (fr) * 2003-11-14 2005-06-09 Behr Gmbh & Co. Kg Collecteur pour echangeur thermique et echangeur thermique

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE359488T1 (de) 2003-01-07 2007-05-15 Behr France Hambach Sarl Kondensator mit sammelbehälter und schutzkappe
US20080023185A1 (en) * 2006-07-25 2008-01-31 Henry Earl Beamer Heat exchanger assembly
DE102013218529A1 (de) * 2013-09-16 2015-03-19 Volkswagen Aktiengesellschaft Trocknervorrichtung und Verflüssiger für eine Kältemaschine sowie Verfahren zur Herstellung eines Verflüssigers für eine Kältemaschine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04257670A (ja) * 1991-02-12 1992-09-11 Nippondenso Co Ltd 受液器一体型凝縮器
US5537839A (en) * 1992-11-18 1996-07-23 Behr Gmbh & Co. Condenser with refrigerant drier
JPH109713A (ja) * 1996-06-24 1998-01-16 Denso Corp 冷媒凝縮装置、および冷媒凝縮器
US5713217A (en) * 1994-10-06 1998-02-03 Nippondenso Co., Ltd. Refrigerant condenser with integral receiver
FR2784317A1 (fr) * 1998-10-07 2000-04-14 Valeo Thermique Moteur Sa Procede pour fixer une cloison transversale dans une boite collectrice d'echangeur de chaleur

Family Cites Families (7)

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Publication number Priority date Publication date Assignee Title
DE1956589C3 (de) * 1969-11-11 1974-04-18 Daimler-Benz Ag, 7000 Stuttgart Vorrichtung zur Entlüftung des Kühlwasserkreislaufes einer Brennkraftmaschine
DE3068367D1 (en) * 1979-11-16 1984-08-02 Chausson Usines Sa Self-purging heat-exchanger for engine cooling circuits
GB2100851A (en) * 1981-06-22 1983-01-06 Shell Int Research Heat exchanger
JPH0740943Y2 (ja) * 1989-02-03 1995-09-20 サンデン株式会社 受液部内蔵型凝縮器
JP3044395B2 (ja) * 1990-12-28 2000-05-22 株式会社ゼクセル レシーバドライヤ一体型コンデンサ
EP0825404B2 (fr) * 1996-08-12 2008-04-16 Calsonic Kansei Corporation Echangeurs de chaleur combinés
GB2326707A (en) * 1997-06-28 1998-12-30 Partco Limited Heat exchanger with divided header tank

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04257670A (ja) * 1991-02-12 1992-09-11 Nippondenso Co Ltd 受液器一体型凝縮器
US5537839A (en) * 1992-11-18 1996-07-23 Behr Gmbh & Co. Condenser with refrigerant drier
US5713217A (en) * 1994-10-06 1998-02-03 Nippondenso Co., Ltd. Refrigerant condenser with integral receiver
JPH109713A (ja) * 1996-06-24 1998-01-16 Denso Corp 冷媒凝縮装置、および冷媒凝縮器
FR2784317A1 (fr) * 1998-10-07 2000-04-14 Valeo Thermique Moteur Sa Procede pour fixer une cloison transversale dans une boite collectrice d'echangeur de chaleur

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 017, no. 038 (M - 1358) 25 January 1993 (1993-01-25) *
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 05 30 April 1998 (1998-04-30) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005052470A1 (fr) * 2003-11-14 2005-06-09 Behr Gmbh & Co. Kg Collecteur pour echangeur thermique et echangeur thermique
US8919147B2 (en) 2003-11-14 2014-12-30 Behr Gmbh & Co. Kg Collection container for a heat exchanger and associated heat exchanger

Also Published As

Publication number Publication date
GB2366363B (en) 2005-03-30
AU2001284219A1 (en) 2002-03-13
GB0021346D0 (en) 2000-10-18
GB2366363A (en) 2002-03-06

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