EP1014027A1 - Condenseur pour systèmes de climatisation de véhicules - Google Patents

Condenseur pour systèmes de climatisation de véhicules Download PDF

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Publication number
EP1014027A1
EP1014027A1 EP99830758A EP99830758A EP1014027A1 EP 1014027 A1 EP1014027 A1 EP 1014027A1 EP 99830758 A EP99830758 A EP 99830758A EP 99830758 A EP99830758 A EP 99830758A EP 1014027 A1 EP1014027 A1 EP 1014027A1
Authority
EP
European Patent Office
Prior art keywords
distributors
tubes
end portions
tube
condenser
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Withdrawn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
EP99830758A
Other languages
German (de)
English (en)
Inventor
Andrea Parola
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.)
Denso Thermal Systems SpA
Original Assignee
Magneti Marelli Climatizzazione SpA
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 Magneti Marelli Climatizzazione SpA filed Critical Magneti Marelli Climatizzazione SpA
Publication of EP1014027A1 publication Critical patent/EP1014027A1/fr
Withdrawn legal-status Critical Current

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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
    • F28D1/04—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 tubular conduits
    • F28D1/053—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 tubular conduits the conduits being straight
    • F28D1/0535—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 tubular conduits the conduits being straight the conduits having a non-circular cross-section
    • F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
    • F28D1/05391—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits combined with a particular flow pattern, e.g. multi-row multi-stage radiators
    • 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
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F28F1/025—Tubular elements of cross-section which is non-circular with variable shape, e.g. with modified tube ends, with different geometrical features
    • 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
    • F28F9/0209—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only transversal partitions
    • F28F9/0212—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only transversal 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
    • F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
    • F28F9/0282—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits by varying the geometry of conduit ends, e.g. by using inserts or attachments for modifying the pattern of flow at the conduit inlet or outlet
    • 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
    • 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
    • F25B2500/00—Problems to be solved
    • F25B2500/01—Geometry problems, e.g. for reducing size
    • 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
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
    • F28D2021/0084—Condensers

Definitions

  • the present invention relates to a condenser for air conditioning systems for vehicles, of the type comprising a plurality of tubes extending between a pair of distributors, the tubes having end portions inserted into corresponding apertures formed in the lateral walls of the distributors.
  • the invention relates to a condenser of the so-called "parallel flow” type, in which the tubes are divided in a certain number of groups and wherein the different groups are connected in series to each other with reference to the direction of the heat exchanger fluid.
  • the circulation of the fluid of the type "parallel flow” is obtained by arranging inside the distributors a plurality of baffles which divide the internal volume of the distributors in a plurality of chambers, communicating with respective end portions of the tubes.
  • the step of inserting the baffles in the distributors is a complicated and expensive operation which requires a specific station in an automatic line for assembling the condensers.
  • the object of the present invention is to provide a heat exchanger of the type mentioned above which overcomes said drawback.
  • this object is achieved by a condenser having the features forming the subject of the main claim.
  • the reference numeral 10 indicates a condenser for air conditioning systems for vehicles.
  • the condenser 10 comprises a heat exchanger core 12 including a plurality of tubes parallel to each other indicated in figure 1 at 14a-14n.
  • the tubes 14 are of a type commonly used for the production of condensers assembled in accordance with the technology of braze-welding in oven. They are made of aluminium or its alloys and are manufactured by extrusion.
  • Each tube 14 has a flat cross-section and has internally a plurality of longitudinal ribs and channels. Undulated fins (not shown) are arranged between each pair of adjacent tubes and are fixed to the tubes in a way per se known during the braze-welding step.
  • a pair of distributors 16, 18 formed by tubular elements closed at their ends are placed at opposite ends of the heat exchanger core 12.
  • Each distributor 16, 18 has on its lateral wall a plurality of through apertures 20 in which respective end portions 22a-22n of the tubes 14a-14n are inserted.
  • Each distributor 16, 18 is divided in a plurality of chamber in series to each other, indicated at 16a, 16b, 16c and 18a, 18b.
  • the flow of the coolant fluid enters in the condenser 10 though an inlet fitting 24 and from chamber 16a of the distributor 16 reaches chamber 18a of the distributors 18 passing through the tubes 14a, 14b, 14c and 14d. From chamber 18a, the fluid reaches the chamber 14b through the tubes 14e, 14f and 14g. In the same manner, from a chamber 16b the flow of fluid reaches chamber 18b through the tubes 14h, 14i and 141 and from chamber 18b, through the tubes 14m and 14n, the flow reaches the chamber 16c which communicates with an outlet fitting 26.
  • the baffles which divide from each other the chambers 16a, 16b, 16c and 18a, 18b are formed by end portions of the tubes.
  • the tubes 14d, 14g and 141 are longer than the other tubes so that their end portions 22d, 22g and 221 penetrate the whole width of a respective distributor 16, 18 forming a transversal baffle dividing two adjacent chambers.
  • each tube forming a transversal baffle has an aperture 28 in its lateral wall, which puts the tube in fluid communication with only one of the chambers formed by such end portion and, more precisely, with the upstream chamber, with reference to the direction of the flow of coolant.
  • the aperture 28 is formed by removing the terminal portion of one of the flat walls of the tube.
  • the distributors 16, 18 have a circular cross-section. Therefore, for forming a transversal baffle, the end portions 22d, 221 and 22g are formed with rounded head portions 30, with a radius identical to that of the internal wall of the distributor.
  • small apertures are formed on the sides of the tube, due to the play existing between the straight sides of the tube 14 and the arcuate internal wall of the distributor 18.
  • the outer walls of the distributors 18 are locally compressed in correspondence with the zones indicated at 32, as shown by the arrows F in figure 4.
  • the walls of the distributor are plastically deformed and the end portion of the tube contacts the internal wall of the distributor 18 along its entire perimeter. Each end portion is then welded to the internal wall of the distributor during the step of braze-welding in oven of the whole condenser.
  • distributors 16, 18 having in cross-section the shape shown in figure 6, with two parallel walls 34 and one arcuate wall 36. In this way, the end portion closes the whole cross section of the distributor without the need for carrying out localised deformation.
  • FIG. 9 A further variant of the solution shown in figures 7 and 8 is shown in figures 9 to 11, in which the aperture 38 on the lateral wall of the end portion is formed by cutting the tube along a plane forming an angle a with respect to the longitudinal axis of the tube, so as to form an inclined front edge.

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)
  • Air-Conditioning For Vehicles (AREA)
  • Sorption Type Refrigeration Machines (AREA)
EP99830758A 1998-12-23 1999-12-06 Condenseur pour systèmes de climatisation de véhicules Withdrawn EP1014027A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO981076 1998-12-23
IT1998TO001076A IT1305076B1 (it) 1998-12-23 1998-12-23 Condensatore per impianti di condizionamento d'aria per veicoli.

Publications (1)

Publication Number Publication Date
EP1014027A1 true EP1014027A1 (fr) 2000-06-28

Family

ID=11417266

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99830758A Withdrawn EP1014027A1 (fr) 1998-12-23 1999-12-06 Condenseur pour systèmes de climatisation de véhicules

Country Status (4)

Country Link
EP (1) EP1014027A1 (fr)
AR (1) AR021580A1 (fr)
BR (1) BR9905957A (fr)
IT (1) IT1305076B1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004023056A1 (fr) * 2002-08-13 2004-03-18 Behr Gmbh & Co. Echangeur thermique
EP1557630A1 (fr) * 2004-01-23 2005-07-27 BEHR Lorraine S.A.R.L. Echangeur de chaleur
EP1580513A1 (fr) * 2004-03-22 2005-09-28 Ford Global Technologies, LLC, A subsidary of Ford Motor Company Tube d'échangeur de chaleur
DE102005016941A1 (de) * 2005-04-12 2006-10-19 Behr Gmbh & Co. Kg Sammelrohr eines Kondensators und Kondensator mit einem solchen Sammelrohr
US20110315363A1 (en) * 2010-06-29 2011-12-29 Johnson Controls Technology Company Multichannel heat exchangers employing flow distribution manifolds
WO2012006073A3 (fr) * 2010-06-29 2012-09-07 Johnson Controls Technology Company Échangeurs de chaleur à canaux multiples employant des collecteurs de distribution d'écoulement
CN101782335B (zh) * 2009-01-20 2014-04-02 三花控股集团有限公司 微通道换热器及其扁管
DE10123347B4 (de) * 2000-05-15 2015-04-02 Denso Corporation Wärmeaustauscher mit Phasen-Änderung von Kältemittel
CN108954921A (zh) * 2018-08-28 2018-12-07 珠海格力电器股份有限公司 一种微通道换热器和空调器
CN108954922A (zh) * 2018-08-28 2018-12-07 珠海格力电器股份有限公司 一种微通道换热器和空调器

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57184894A (en) * 1981-05-08 1982-11-13 Hitachi Ltd Heat exchanger
US4960169A (en) * 1989-06-20 1990-10-02 Modien Manufacturing Co. Baffle for tubular heat exchanger header
JPH02302592A (ja) * 1989-05-15 1990-12-14 Nippondenso Co Ltd 熱交換器
US5233756A (en) * 1991-05-14 1993-08-10 Valeo Thermique Moteur Method of making a heat exchanger having a tubular manifold with transverse baffles
US5299635A (en) * 1993-03-05 1994-04-05 Wynn's Climate Systems, Inc. Parallel flow condenser baffle
US5318111A (en) * 1993-06-22 1994-06-07 Ford Motor Company Integral baffle assembly for parallel flow heat exchanger

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57184894A (en) * 1981-05-08 1982-11-13 Hitachi Ltd Heat exchanger
JPH02302592A (ja) * 1989-05-15 1990-12-14 Nippondenso Co Ltd 熱交換器
US4960169A (en) * 1989-06-20 1990-10-02 Modien Manufacturing Co. Baffle for tubular heat exchanger header
US5233756A (en) * 1991-05-14 1993-08-10 Valeo Thermique Moteur Method of making a heat exchanger having a tubular manifold with transverse baffles
US5299635A (en) * 1993-03-05 1994-04-05 Wynn's Climate Systems, Inc. Parallel flow condenser baffle
US5318111A (en) * 1993-06-22 1994-06-07 Ford Motor Company Integral baffle assembly for parallel flow heat exchanger

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 007, no. 031 (M - 192) 8 February 1983 (1983-02-08) *
PATENT ABSTRACTS OF JAPAN vol. 015, no. 081 (M - 1086) 25 February 1991 (1991-02-25) *

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10123347B4 (de) * 2000-05-15 2015-04-02 Denso Corporation Wärmeaustauscher mit Phasen-Änderung von Kältemittel
WO2004023056A1 (fr) * 2002-08-13 2004-03-18 Behr Gmbh & Co. Echangeur thermique
EP1557630A1 (fr) * 2004-01-23 2005-07-27 BEHR Lorraine S.A.R.L. Echangeur de chaleur
EP1580513A1 (fr) * 2004-03-22 2005-09-28 Ford Global Technologies, LLC, A subsidary of Ford Motor Company Tube d'échangeur de chaleur
DE102005016941A1 (de) * 2005-04-12 2006-10-19 Behr Gmbh & Co. Kg Sammelrohr eines Kondensators und Kondensator mit einem solchen Sammelrohr
CN101782335B (zh) * 2009-01-20 2014-04-02 三花控股集团有限公司 微通道换热器及其扁管
CN103003653A (zh) * 2010-06-29 2013-03-27 江森自控科技公司 采用流分配歧管的多通道换热器
WO2012006073A3 (fr) * 2010-06-29 2012-09-07 Johnson Controls Technology Company Échangeurs de chaleur à canaux multiples employant des collecteurs de distribution d'écoulement
US20110315363A1 (en) * 2010-06-29 2011-12-29 Johnson Controls Technology Company Multichannel heat exchangers employing flow distribution manifolds
CN103003653B (zh) * 2010-06-29 2015-06-17 江森自控科技公司 采用流分配歧管的多通道换热器
US9267737B2 (en) 2010-06-29 2016-02-23 Johnson Controls Technology Company Multichannel heat exchangers employing flow distribution manifolds
CN108954921A (zh) * 2018-08-28 2018-12-07 珠海格力电器股份有限公司 一种微通道换热器和空调器
CN108954922A (zh) * 2018-08-28 2018-12-07 珠海格力电器股份有限公司 一种微通道换热器和空调器

Also Published As

Publication number Publication date
ITTO981076A0 (it) 1998-12-23
BR9905957A (pt) 2000-09-26
IT1305076B1 (it) 2001-04-10
AR021580A1 (es) 2002-07-24
ITTO981076A1 (it) 2000-06-23

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