EP1027942A1 - Tube pour echangeur de chaleur et procede de fabrication dudit tube - Google Patents

Tube pour echangeur de chaleur et procede de fabrication dudit tube Download PDF

Info

Publication number
EP1027942A1
EP1027942A1 EP98931008A EP98931008A EP1027942A1 EP 1027942 A1 EP1027942 A1 EP 1027942A1 EP 98931008 A EP98931008 A EP 98931008A EP 98931008 A EP98931008 A EP 98931008A EP 1027942 A1 EP1027942 A1 EP 1027942A1
Authority
EP
European Patent Office
Prior art keywords
plate
tube
joint portions
brazing
folding portion
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Withdrawn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
EP98931008A
Other languages
German (de)
English (en)
Other versions
EP1027942A4 (fr
Inventor
Soichi Zexel Corporation Kohnan Plant KATO
Muneo Zexel Corporation Kohnan Plant SAKURADA
Shin Zexel Corporation Kohnan Plant KURIHARA
Sadao Zexel Corporation Kohnan Plant HAIYA
Takashi Zexel Corporation Kohnan Plant SUGITA
Shoji Zexel Corporation Kohnan Plant AKIYAMA
Takahumi Zexel Corporation Kohnan Plant UMEHARA
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.)
Valeo Thermal Systems Japan Corp
Original Assignee
Zexel Corp
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 Zexel Corp filed Critical Zexel Corp
Publication of EP1027942A1 publication Critical patent/EP1027942A1/fr
Publication of EP1027942A4 publication Critical patent/EP1027942A4/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/04Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
    • F28F3/042Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06Manufacture of metal sheets, bars, wire, tubes 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
    • B21C37/14Making tubes from double flat material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06Manufacture of metal sheets, bars, wire, tubes 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
    • B21C37/15Making tubes of special shape; Making tube fittings
    • B21C37/151Making tubes with multiple passages
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00Making other particular articles
    • B21D53/02Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
    • B21D53/04Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of sheet metal
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00Making other particular articles
    • B21D53/02Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
    • B21D53/08Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of both metal tubes and sheet metal
    • B21D53/085Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of both metal tubes and sheet metal with fins places on zig-zag tubes or parallel tubes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00Heat-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
    • F28D1/02Heat-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
    • F28D1/03Heat-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
    • F28D1/0391Heat-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

Definitions

  • the present invention relates to a tube for use in a heat exchanger and a method for producing it.
  • a conventionally known heat exchanger has a plurality of tubes laminated with fins interposed between tubes and both ends of the tubes connected to communicate with header pipes, in which a medium is flowed to meander a plurality of times between inlet and outlet joints disposed on the header pipes.
  • tubes used for the aforesaid type of heat exchanger are formed by roll forming, pressing or the like of a strip plate of metal such as an aluminum alloy and brazing its required portions.
  • the plate being used is a brazing sheet which has a brazing material clad on its entire surface, brazing of the required portions of the tubes and other required portions of the heat exchanger is performed by assembling the tubes, fins and header pipes into one body by means of a jig and the like and heating the assembled body by one operation.
  • a tube 20 shown in Fig. 6 is formed by folding a strip plate into two and mutually brazing flat joint portions 22, 22 which are formed at both ends of the plate in its breadth direction.
  • the plate is folded along a folding portion 21 at a predetermined curvature corresponding to a thickness of the tube 20, and the joint portions 22, 22 are formed to have a predetermined height corresponding to the thickness of the tube 20.
  • this tube 20 has beads 23 formed at appropriate intervals between the folding portion 21 and the joint portions 22, 22 of the plate by bending the plate to form recesses in order to improve pressure resistance and heat exchange efficiency of the tube 20. Namely, these beads 23, 23 have their tops brazed to opposed portions in the tube 20 to form a plurality of passages 24, 24 which are separated by the beads 23, 23 in the tube 20.
  • the folding portion of the plate when the plate is folded, the folding portion of the plate may be displaced somewhat from a predetermined position or the resilience of the folding portion of the plate acts, for example, as shown in Fig. 7, so that displacement A between the joint portions 22, 22, gap B between the joint portions or gaps C between the tops of the beads 23 and their opposed portions are formed to typically cause a failure in brazing.
  • the invention recited in claim 1 is a tube for a heat exchanger which is formed by folding a metal strip plate into two and mutually brazing joint portions which are formed at either end of the plate in its breadth direction, wherein a groove is formed along a portion-to-be-folded of the plate in its longitudinal direction.
  • the plate when the groove is formed at the portion-to-be-folded of the plate along its longitudinal direction, the plate can be folded more accurately and easily than before, so that brazing property at the joint portions can be improved, and a non-defective unit rate of the tube and the heat exchangers configured by using this tube can be improved.
  • the present invention can control the position of the folding portion of the plate by means of the groove, so that the plate can be folded accurately. As a result, the joint portions can be prevented from being displaced, and a defect of brazing can be decreased.
  • the plate of the present invention has the groove to decrease the thickness of the folding portion, the resiliency is decreased. Therefore, the plate can be folded easily, the joint portions can be prevented from separating from each other, thereby preventing a gap, which may cause a brazing failure, from being formed, and a brazing failure can be decreased.
  • the plate when the bead tops are brazed with the opposed inside portions between the folding portion and the joint portions of the plate, the plate can be folded accurately and easily. Therefore, the brazing property at the joint portions can be improved, and the brazing property at the beads can also be improved.
  • the invention recited in claim 2 is the tube for a heat exchanger according to claim 1, wherein the vicinity of the folding portion of the plate is compressed before brazing the joint portions to decrease a radius of curvature of the folding portion of the plate.
  • the resiliency of the folding portion of the plate can be further decreased.
  • the brazing property at the joint portions and the beads can be improved further.
  • the heat exchanger can be prevented from being deformed in shape owing to the accumulation of imbalanced strength in the breadth direction of the respective tubes.
  • the present invention can remedy such a problem and improve assembling property by compressing the vicinity of the folding portion of the plate to decrease a radius of curvature of the folding portion of the plate.
  • the invention recited in claim 3 is a method for producing a tube for a heat exchanger by folding a metal strip plate and mutually brazing joint portions which are formed at either end of the plate in its breadth direction, wherein a groove is formed at a portion-to-be-folded of the plate in its longitudinal direction.
  • the plate when the groove is formed at the portion-to-be-folded of the plate along the longitudinal direction of the plate, the plate can be folded more accurately and easily, so that brazing property at the joint portions can be improved, and a non-defective unit rate of the tube and the heat exchangers configured by using this tube can be improved.
  • the present invention can control the position of the folding portion of the plate by means of the groove, so that the plate can be folded accurately. As a result, the joint portions can be prevented from being displaced, and a defect of brazing can be decreased.
  • the present invention has the groove to decrease the thickness of the folding portion so to decrease the resiliency. Therefore, the plate can be folded easily, and the joint portions can be prevented from being separated from each other, thereby preventing a gap, which may cause a brazing failure, from being formed, and a brazing failure can be decreased.
  • the plate when the bead tops are brazed with the opposite inside portions between the folding portion and the joint portions of the plate, the plate can be folded accurately and easily. Therefore, the brazing property at the joint portions can be improved, and the brazing property at the beads can also be improved.
  • the invention recited in claim 4 is the method for producing a tube for a heat exchanger according to claim 3, wherein the vicinity of the folding portion of the plate is compressed before brazing the joint portions to decrease a radius of curvature of the folding portion of the plate.
  • the resiliency of the folding portion of the plate can be further decreased.
  • the brazing property at the joint portions and the beads can be improved further.
  • the heat exchanger can be prevented from being deformed in shape owing to the accumulation of imbalanced strength in the breadth direction of the respective tubes.
  • the present invention can remedy such a problem and improve assembling property by compressing the vicinity of the folding portion of the plate to decrease a radius of curvature of the folding portion of the plate.
  • a heat exchanger 1 of this embodiment has a plurality of tubes 2, 2, which are laminated with fins 5, 5 interposed between tubes connected to communicate with header pipes 3, 4 which are disposed at both ends of the tubes 2,2.
  • the header pipes 3, 4 are cylindrical pipes which have their top and bottom openings closed with blind caps 6, 6, their interiors being divided by partition plates 7, 7 which are disposed at predetermined positions, and provided with an inlet joint 3a to intake in a medium or an outlet joint 4a to externally discharge the medium.
  • Tube insertion holes 9, 9 are formed at predetermined intervals along a longitudinal direction of each of the header pipes 3, 4.
  • the tubes 2, 2 have their both ends inserted into and brazed to the tube insertion holes 9, 9.
  • a side plate 8 is placed on the top and bottom of the stacked tubes 2, 2.
  • the side plate 8 has its ends fixed to the header pipes 3, 4 to reinforce the structural strength of the heat exchanger.
  • the medium taken in through the inlet joint 3a is meandered a plurality of times to flow between the header pipes 3, 4 in a predetermined group unit of tubes 2 while heat exchanging, and discharged from the outlet joint 4a. And the heat exchange by the medium is promoted by an effect of heat radiation of the fins 5 interposed between the tubes 2 and also between the side plates 8.
  • Fig. 2 is an exterior view to show the tube 2
  • Figs. 3, 4 are exterior views to show a plate P used to form the tube 2.
  • the tube 2 of this embodiment is formed by folding the strip plate P into two and mutuallyy brazing the joint portions 22, 22 formed at the ends of the plate P in its breadth direction.
  • the outside form of a transverse cross section of the tube 2 is slightly smaller than the tube insertion holes 9, 9 of the header pipes 3, 4.
  • a portion-to-be-folded 21' of the plate P is formed a groove 21a in a longitudinal direction of the plate P, and the plate P is folded along the groove 21a at a predetermined curvature corresponding to a thickness of the tube 2. And, the portion-to-be-folded 21' of the plate P is determined as a folding portion 21 of the plate P.
  • a plurality of beads 23, 23 are formed at predetermined intervals between the folding portion 21 and the joint portions 22, 22 of the plate 9, and a plurality of passages 24, 24 divided by the beads 23, 23 are formed within the tube 2.
  • an aluminum light alloy excelling in formability is used and its front and back surfaces are clad with a brazing material.
  • the joint portions 22, 22 and the beads 23, 23 are formed by bending the plate P by roll forming.
  • the roll forming is performed by passing the plate P between rotary rolls with a predetermined shape disposed to oppose mutually.
  • the groove 21a is formed by forming the joint portions 22, 22 and the beads 23, 23 and thereafter pressing the surface of the plate P at its center in the breadth direction which is to be the inside of the tube 2 by a roll having a periphery in the shape of the groove 21a along the longitudinal direction of the plate P.
  • the groove 21a has a transverse cross section in a V-shape and a depth of one half or below of a thickness of the tube 2. Namely, by appropriately determining the shape and depth of the groove 21a, weakening of the tube 2 involved in thinning the thickness of the plate P is suppressed to secure its strength.
  • the tube 2 is formed by further bending the plate P provided with the joint portions 22, 22, the beads 23, 23 and the groove 21a, by roll forming. Specifically, the tube 2 is formed by folding the plate P along the groove 21a, putting the joint portions 22, 22 together and also contacting the tops of the beads 23, 23 to the opposed positions. Since the groove 21a is formed, the plate P can be folded accurately and easily.
  • the tubes 2 formed as described above are integrally fitted to the header pipes 3, 4 and the fins 5, 5, and the assembled body is sent into a furnace and brazed by heat treatment. Specifically, the mutual joint portions 22, 22, and the tops of the beads 23, 23 and their opposed portions are brazed together with the tube insertion holes 9, 9 of the header pipes 3, 4 and respective required portions in contact with the fins 5, 5 by one operation.
  • groove 21a is filled with the flowed brazing material, pressure resistance to the medium at the folding portion 21 where the groove 21a is formed can be kept at a satisfactory level.
  • the groove 21a is formed on the inside of the tube 2 but may be formed as a starting point for bending the plate P so to be formed on the outside surface of the tube 2. And, its transverse cross section is not limited to the V-shape, but may have a U-shape.
  • the plate can be folded more accurately and easily. Therefore, the brazing property at the joint portions can be improved, and a non-defective unit rate of the tubes and the heat exchanger configured by using these tubes can be improved.
  • the present invention can control the position of the folding portion of the plate by means of the groove, so that the plate can be folded accurately. Consequently, the joint portions can be prevented from being displaced, and a defect of brazing can be decreased.
  • the tube of this embodiment has the beads alternately formed from its top and bottom inner walls, and the plate before forming is formed into a horizontally asymmetrical shape with the folding portion at the center, so that a defective forming at the folding portion due to the asymmetrical shape can be prevented by the groove formed.
  • the present invention has the groove to decrease the thickness of the folding portion of the plate so to decrease the resiliency. Therefore, the plate can be folded easily, the joint portions can be prevented from separating from each other, thereby preventing a gap, which may cause a brazing failure, from being formed, and a brazing failure can be decreased.
  • the plate when the bead tops are brazed with the opposed inside portions between the folding portion and the joint portions of the plate, the plate can be folded accurately and easily. Therefore, the brazing property at the joint portions can be improved, and the brazing property at the beads can also be improved.
  • the tube 2 of this embodiment is formed after the vicinity of the folding portion of the plate is compressed before brazing the joint portions 22, 22 so to decrease a radius of curvature of the folding portion 21 of the plate.
  • compressed portions 25, 25 which have a tapered transverse cross section are formed in the vicinity of the folding portion 21 of the plate. These compressed portions 25, 25 are formed by roll forming. And other portions of the tube are configured in the same way as in the previous embodiment, so that their description is omitted.
  • the resiliency of the folding portion of the plate can be further decreased.
  • the brazing property at the joint portions and the beads can be improved further.
  • the heat exchanger can be prevented from being deformed in shape owing to the accumulation of imbalanced strength in the breadth direction of the respective tubes.
  • the present invention provides a tube with its brazing property improved by bending a plate for the tube accurately and easily and a method for producing it.
  • the invention is applied to a general radiator and evaporator and also to a condenser required to have a pressure resistance.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
EP98931008A 1997-07-09 1998-07-08 Tube pour echangeur de chaleur et procede de fabrication dudit tube Withdrawn EP1027942A4 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP18421797A JPH1130493A (ja) 1997-07-09 1997-07-09 熱交換器用チューブ及びその製造方法
JP18421797 1997-07-09
PCT/JP1998/003059 WO1999002283A1 (fr) 1997-07-09 1998-07-08 Tube pour echangeur de chaleur et procede de fabrication dudit tube

Publications (2)

Publication Number Publication Date
EP1027942A1 true EP1027942A1 (fr) 2000-08-16
EP1027942A4 EP1027942A4 (fr) 2001-05-16

Family

ID=16149423

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98931008A Withdrawn EP1027942A4 (fr) 1997-07-09 1998-07-08 Tube pour echangeur de chaleur et procede de fabrication dudit tube

Country Status (3)

Country Link
EP (1) EP1027942A4 (fr)
JP (1) JPH1130493A (fr)
WO (1) WO1999002283A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004076930A3 (fr) * 2003-02-27 2004-11-04 Behr Gmbh & Co Kg Dispositif de transfert de chaleur
CN103702791A (zh) * 2010-12-20 2014-04-02 法雷奥热系统公司 用于热交换器的钎焊方法和相应的管和热交换器
CN104302999A (zh) * 2012-01-31 2015-01-21 法雷奥热系统公司 热交换器管道、热交换器和相应的生产方法

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3299148B2 (ja) * 1997-09-16 2002-07-08 株式会社ゼクセルヴァレオクライメートコントロール 熱交換器用チューブとその製造方法
US6209202B1 (en) * 1999-08-02 2001-04-03 Visteon Global Technologies, Inc. Folded tube for a heat exchanger and method of making same
US6241012B1 (en) * 1999-12-10 2001-06-05 Visteon Global Technologies, Inc. Folded tube for a heat exchanger and method of making same
JP2018087660A (ja) * 2016-11-29 2018-06-07 株式会社デンソー ドロンカップ式熱交換器
CN109230946A (zh) * 2018-11-02 2019-01-18 宁波欧菱电梯配件有限公司 一种电梯门导轨及导轨加工方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3704215A1 (de) * 1987-02-11 1988-08-25 Laengerer & Reich Kuehler Strangpressprofilrohr fuer waermeaustauscher
EP0457470A1 (fr) * 1990-05-11 1991-11-21 Showa Aluminum Kabushiki Kaisha Tube pour échangeurs de chaleur et méthode de fabrication du tube
US5172476A (en) * 1991-08-14 1992-12-22 General Motors Corporation Method of manufacturing heat exchanger tubing
DE4340378A1 (de) * 1992-11-27 1994-06-01 Zexel Corp Wärmeaustauscher und Verfahren zur Herstellung derselben
JPH07100528A (ja) * 1993-10-05 1995-04-18 Nisshin Steel Co Ltd 形状特性に優れた異形管の製造方法
JPH08327266A (ja) * 1995-06-02 1996-12-13 Calsonic Corp 熱交換器用チューブ
JPH09122804A (ja) * 1996-05-07 1997-05-13 Calsonic Corp 熱交換器用溶接チューブ及びその製造方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS588928B2 (ja) * 1975-06-19 1983-02-18 ミツビシアルミニウム カブシキガイシヤ ネツコウカンキヨウタカンロパイプノ セイゾウホウホウ
JPS6328631U (fr) * 1986-08-08 1988-02-25
JPH0842985A (ja) * 1994-07-29 1996-02-16 Showa Alum Corp 熱交換器用冷媒流通管

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3704215A1 (de) * 1987-02-11 1988-08-25 Laengerer & Reich Kuehler Strangpressprofilrohr fuer waermeaustauscher
EP0457470A1 (fr) * 1990-05-11 1991-11-21 Showa Aluminum Kabushiki Kaisha Tube pour échangeurs de chaleur et méthode de fabrication du tube
US5172476A (en) * 1991-08-14 1992-12-22 General Motors Corporation Method of manufacturing heat exchanger tubing
DE4340378A1 (de) * 1992-11-27 1994-06-01 Zexel Corp Wärmeaustauscher und Verfahren zur Herstellung derselben
JPH07100528A (ja) * 1993-10-05 1995-04-18 Nisshin Steel Co Ltd 形状特性に優れた異形管の製造方法
JPH08327266A (ja) * 1995-06-02 1996-12-13 Calsonic Corp 熱交換器用チューブ
JPH09122804A (ja) * 1996-05-07 1997-05-13 Calsonic Corp 熱交換器用溶接チューブ及びその製造方法

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 07, 31 August 1995 (1995-08-31) -& JP 07 100528 A (NISSHIN STEEL CO LTD), 18 April 1995 (1995-04-18) *
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 04, 30 April 1997 (1997-04-30) -& JP 08 327266 A (CALSONIC CORP), 13 December 1996 (1996-12-13) *
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 09, 30 September 1997 (1997-09-30) -& JP 09 122804 A (CALSONIC CORP), 13 May 1997 (1997-05-13) *
See also references of WO9902283A1 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004076930A3 (fr) * 2003-02-27 2004-11-04 Behr Gmbh & Co Kg Dispositif de transfert de chaleur
CN103702791A (zh) * 2010-12-20 2014-04-02 法雷奥热系统公司 用于热交换器的钎焊方法和相应的管和热交换器
CN104302999A (zh) * 2012-01-31 2015-01-21 法雷奥热系统公司 热交换器管道、热交换器和相应的生产方法

Also Published As

Publication number Publication date
EP1027942A4 (fr) 2001-05-16
JPH1130493A (ja) 1999-02-02
WO1999002283A1 (fr) 1999-01-21

Similar Documents

Publication Publication Date Title
AU665693B2 (en) Refrigerant tubes for heat exchangers
JP4171760B2 (ja) 偏平管および偏平管の製造方法
US7749609B2 (en) Metal plate for producing flat tube, flat tube and process for producing the flat tube
US6467170B2 (en) Tube for heat exchangers and method of manufacturing same
EP0880002A2 (fr) Echangeur de chaleur
AU2002304254A1 (en) Metal plate for producing flat tube, flat tube and process for producing the flat tube
US5979051A (en) Heat exchanger and method of producing the same
EP1362649A1 (fr) Procédé et dispositif de pliage d'une bande métallique
US6799630B1 (en) Tube for heat exchangers and method of manufacturing the same
US5908070A (en) Heat exchanger
EP1027942A1 (fr) Tube pour echangeur de chaleur et procede de fabrication dudit tube
US20080245518A1 (en) Flat Tube Making Platelike Body, Flat Tube, Heat Exchanger and Process for Fabricating Heat Exchanger
JP4898672B2 (ja) 熱交換器
EP0866301A1 (fr) Echangeur de chaleur et son procede de fabrication
EP0853227A2 (fr) Echangeur de chaleur
JP2005291693A (ja) 偏平管製造用板状体、偏平管、熱交換器および熱交換器の製造方法
JPH08145591A (ja) 熱交換器
WO2002004881A1 (fr) Collecteurs de condenseur
JP2006112651A (ja) 熱交換器
JPH04220129A (ja) ろう付用パイプの製造方法

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20000126

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ZEXEL VALEO CLIMATE CONTROL CORPORATION

A4 Supplementary search report drawn up and despatched

Effective date: 20010404

AK Designated contracting states

Kind code of ref document: A4

Designated state(s): DE FR GB

RIC1 Information provided on ipc code assigned before grant

Free format text: 7B 21D 53/04 A, 7B 21C 37/15 B, 7B 21C 37/14 B, 7F 28D 1/03 B

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 20010622