[go: up one dir, main page]

US3702021A - Methods of making heat exchangers - Google Patents

Methods of making heat exchangers Download PDF

Info

Publication number
US3702021A
US3702021A US15600A US3702021DA US3702021A US 3702021 A US3702021 A US 3702021A US 15600 A US15600 A US 15600A US 3702021D A US3702021D A US 3702021DA US 3702021 A US3702021 A US 3702021A
Authority
US
United States
Prior art keywords
pressings
crests
channel
depressions
cold welding
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.)
Expired - Lifetime
Application number
US15600A
Inventor
John Anthony Bartlam Wolfe
John Edwin Frederick Clark
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.)
Peugeot Motor Co PLC
Original Assignee
Chrysler United Kingdom Ltd
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 Chrysler United Kingdom Ltd filed Critical Chrysler United Kingdom Ltd
Application granted granted Critical
Publication of US3702021A publication Critical patent/US3702021A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
    • B21D53/04—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of sheet metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/002—Resistance welding; Severing by resistance heating specially adapted for particular articles or work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/26—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass heat exchangers or the like
    • 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
    • F28D1/03—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 plate-like or laminated conduits
    • F28D1/0308—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 plate-like or laminated conduits the conduits being formed by paired plates touching each other
    • F28D1/0325—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 plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another
    • F28D1/0333—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 plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another the plates having integrated connecting members
    • 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
    • F28F1/126—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 consisting of zig-zag shaped fins
    • F28F1/128—Fins with openings, e.g. louvered fins
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/025—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being corrugated, plate-like elements
    • F28F3/027—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being corrugated, plate-like elements with openings, e.g. louvered corrugated fins; Assemblies of corrugated strips
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4935—Heat exchanger or boiler making
    • Y10T29/49366—Sheet joined to sheet
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4935—Heat exchanger or boiler making
    • Y10T29/49393—Heat exchanger or boiler making with metallurgical bonding

Definitions

  • ABSTRACT A method of making a heat exchanger of the kind consisting of a stack of sheet metal pressings in face to face relation, adjacent pairs of pressings providing between them alternately channels for flow of coolant and spaces for flow of air, in which method the pressings are joined together by cold welding operations.
  • SHEET 1 BF 4 I METHODS OF MAKING HEAT EXCHANGERS This invention relates to methods of making heat exchangers (e.g. radiators or oil coolers, for motor vehicle engines or car interior heaters or coolers) of the kind comprising a stack of pairs of sheet metal pressings in face to face relation, one set of adjacent pairs of pressings providing between them channels for flow of coolant and the other set of adjacent pairs of pressings providing between them spaces for the flow of air.
  • heat exchangers e.g. radiators or oil coolers, for motor vehicle engines or car interior heaters or coolers
  • the invention provides a method of making a heat exchanger of the kind comprising a stack of sheet metal pressings in face to face relation, adjacent pairs of pressings providing between them alternately channels for flow of coolant and spaces for the flow of air, which method comprises joining pairs of pressings which provide between them channels for flow of coolant by cold welding and joining the thus formed pairs by cold welding to provide the spaces for flow of air.
  • each pair of pressings and of the pairs of pressings may be carried out in a number of cold welding operations at adjacent locations.
  • the cold welding operations may be carried out at overlapping locations.
  • a fin or fins may be secured to the pressings in each air space.
  • a fin of wave or zig-zag form may be welded at alternate crests to the side of each pressing which bounds an air space.
  • the crests of the fins may be cold welded to the pressing.
  • the crests of the fins may be resistance welded to the pressing.
  • the welding operation of the crests of a fin to a pressing may form a groove in the pressing in which the crest is located, which groove serves to stiffen the pressing.
  • the fins may be located on the pressings so that crests on the tins of adjacent pressings abut one another.
  • each pressing has two spaced depressions having openings in the bottom thereof, a channel connecting the two depressions and a peripheral flange extending along either side of the channel and around the depressions in which case pairs of pressings are first assembled with their flanges in face to face relationship, the flanges are cold welded together and the resulting pairs of sheets are assembled with the spaced depressions on one side of one pair of sheets in engagement with the spaced depressions on one side of another pair of sheets so that the openings in the engaging depressions communicate with one another, and the depressions are then cold welded together.
  • FIG. 1 is a perspective view of one of the aluminum pressings which make up the radiator having a length of finning secured thereto;
  • FIG. 2 is a sectional view showing the finning and pressing in spaced relationship
  • FIG. 3 is a side view of the pressing and finning
  • FIG. 4 is a perspective view of two pressings secured together
  • FIG. 5 is a side view of the joined pressing shown in FIG. 4;
  • FIG. 6 is a sectional view of two pairs of pressings being joined together by a mandrel tool.
  • FIG. 7 is a sectional view on the line 7-7 of FIG. 6 with the mandrel removed.
  • FIGS. 1 and 2 of the drawings one end of an aluminum sheet pressing 10 is shown having a depression 11 adjacent one end thereof the bottom 12 of which has an opening 13.
  • a similar depression (not shown) is formed at the other end of the pressing and a channel 14 extends between thev depressions.
  • the pressing has a peripheral flange 15.
  • a fin is secured to the outside surface of the channel 14 between the depressions l l a part of the tin being illustrated in FIG. 1 and comprising an aluminum strip 16 which is bent into wave form.
  • the crests 17 of the waves of the strip which engage the surface of the channel 14 are cold welded to the channel by pressure inthe direction of the arrows 18 in FIG. 3.
  • the channel is supported on the inside thereof in a manner which permits the pressure used in the cold welding to form grooves indicated at 14a in FIG. 6 extending across the channel in which the crests 17 of the strip are secured.
  • the fins may be resistance welded to the channels 14.
  • the strip 16 is formed with spaced louvres 19 to permit air flow through the sheet. 1
  • FIGS. 4 and 5 of the drawings two pressings 10 are shown assembled with their respective flanges in face to face relationship and the flanges are cold welded together along the line 20 by a press tool (not shown) to provide a watertight joint between the flanges.
  • the cold welding may be carried out in a single operation or, more conveniently, lengths of the flanges may be welded together at overlapping locations until the flanges are welded together around their entire peripheries.
  • FIGS. 6 and 7 of the drawings the assembly of two of the units is shown the units being placed with the depressions of the plate of one unit in engagement with the depressions of a plate of the other unit and the openings of the depressions in register.
  • the depressions are cold welded together around their openings by a mandrel tool 21 having three spaced pairs of jaws around its circumference.
  • the jaws are radially movable and are withdrawn to permit the mandrel to be inserted through the openings.
  • the jaws 22 are then expanded to engage on either side of the depressions and are closed to cold weld the parts of the depressions engaged by the jaws together.
  • the jaws extend over segmental parts of the bottoms of the depressions and when one set of segments indicated at A, C and E in FIG. 7 has been cold welded by the jaws, the mandrel is rotated and a further set of segments indicated at B, D and F which partly overlap the first set are cold welded.
  • the jaws 22 are then retracted to permit the mandrel to be withdrawn from the depressions.
  • the depth and location of the bent strips 16 is such that the crests of the strips which are spaced from their respective sheets abut one another. Further units are then secured to the two units formed in this manner until a stack of the required capacity has been formed.
  • the communicating depressions on either side of the stack provide header pipes for connection to supply and return conduits and the channels provide passages for coolant flow between the header pipes in the case of a down flow heat exchanger.
  • the communicating depressions provide side pipes fora cross-flow type heat exchanger.
  • the heat exchanger is particularly suitable for use as a radiator in a coolant system for a motor vehicle -engine.
  • a method of making a heat exchanger of the kind comprising a stack of sheet aluminum orv aluminum alloy pressings'in face to face relation, each pressing having two spaced depressions each provided with an opening in the bottom thereof, a channel connecting the depressions and a peripheral flange, which method comprises the steps of:

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

A method of making a heat exchanger of the kind consisting of a stack of sheet metal pressings in face to face relation, adjacent pairs of pressings providing between them alternately channels for flow of coolant and spaces for flow of air, in which method the pressings are joined together by cold welding operations.

Description

United States Patent Wolfe et al.
[451 Nov. 7, 1972 [54] METHODS OF MAKING HEAT EXCHANGERS [72] Inventors: John Anthony Bartlam Wolfe; John Edwin Frederick Clark, both of London, England [73] Assignee: Chrysler United Kingdom Limited England [22] Filed: March 2,1970
21 Appl. No.: 15,600
[30] Foreign Application Priority Data March 4,1969 GreatBritain ..l1,568/69 [52] US. Cl. ..29/157.3 D, 29/157.3 B, 29/470.1, 113/l18R,113/1l8D [51] Int. Cl. ....B2ld 53/00, B2lk 29/00, B23p 15/26 [58] Field of Search....29/l57.3 R, 157.3 D, 157.3 B, 29/4701; 113/118 R, 118 D; 165/166, 167
[56] References Cited I UNITED STATES PATENTS 2,790,628 4/1957 Barnes ..29/470.l X
Billetter ..29/470.1 X
2,874,942 2/ 1959 Rieppel et al ..29/470.1 X 3,071,216 l/1963 Jones et a1. ..29/470.l X 1,954,638 4/1934 Loeffler ..29/157.3 1,990,752 2/1935 Ragsdale ..1 13/118 D X 2,617,634 11/1952 Jendrassik ..165/140 3,451,114 6/1969 Werneke ..29/l57.3 7 3,512,238 5/1970 Canon et al ..113/118 X 3,537,165 11/1970 Paddock et al. ...113/118 D X FOREIGN PATENTS OR APPLICATIONS 1,007,886 10/1965 Great Britain ..29/157.3
Primary Examiner-John F. Campbell Assistant Examiner-Victor A. DiPalma Attorney-Mawhinney & Mawhinney [57] ABSTRACT A method of making a heat exchanger of the kind consisting of a stack of sheet metal pressings in face to face relation, adjacent pairs of pressings providing between them alternately channels for flow of coolant and spaces for flow of air, in which method the pressings are joined together by cold welding operations.
5 Claims, 7 Drawing Figures PATENTEDR V Hm 3,702,021-
SHEET 1 BF 4 I METHODS OF MAKING HEAT EXCHANGERS This invention relates to methods of making heat exchangers (e.g. radiators or oil coolers, for motor vehicle engines or car interior heaters or coolers) of the kind comprising a stack of pairs of sheet metal pressings in face to face relation, one set of adjacent pairs of pressings providing between them channels for flow of coolant and the other set of adjacent pairs of pressings providing between them spaces for the flow of air.
The invention provides a method of making a heat exchanger of the kind comprising a stack of sheet metal pressings in face to face relation, adjacent pairs of pressings providing between them alternately channels for flow of coolant and spaces for the flow of air, which method comprises joining pairs of pressings which provide between them channels for flow of coolant by cold welding and joining the thus formed pairs by cold welding to provide the spaces for flow of air.
' The cold welding of each pair of pressings and of the pairs of pressings may be carried out in a number of cold welding operations at adjacent locations.
The cold welding operations may be carried out at overlapping locations.
A fin or fins may be secured to the pressings in each air space.
Prior to the cold welding of the pressings to form pairs, a fin of wave or zig-zag form may be welded at alternate crests to the side of each pressing which bounds an air space.
,The crests of the fins may be cold welded to the pressing.
The crests of the fins may be resistance welded to the pressing.
The welding operation of the crests of a fin to a pressing may form a groove in the pressing in which the crest is located, which groove serves to stiffen the pressing.
The fins may be located on the pressings so that crests on the tins of adjacent pressings abut one another.
Preferably each pressing has two spaced depressions having openings in the bottom thereof, a channel connecting the two depressions and a peripheral flange extending along either side of the channel and around the depressions in which case pairs of pressings are first assembled with their flanges in face to face relationship, the flanges are cold welded together and the resulting pairs of sheets are assembled with the spaced depressions on one side of one pair of sheets in engagement with the spaced depressions on one side of another pair of sheets so that the openings in the engaging depressions communicate with one another, and the depressions are then cold welded together.
The following is a description of two embodiments of the invention reference being made to thezaccompanying diagrammatic drawings in which:
FIG. 1 is a perspective view of one of the aluminum pressings which make up the radiator having a length of finning secured thereto;
FIG. 2 is a sectional view showing the finning and pressing in spaced relationship;
FIG. 3 is a side view of the pressing and finning;
FIG. 4 is a perspective view of two pressings secured together;
FIG. 5 is a side view of the joined pressing shown in FIG. 4;
FIG. 6 is a sectional view of two pairs of pressings being joined together by a mandrel tool; and
FIG. 7 is a sectional view on the line 7-7 of FIG. 6 with the mandrel removed.
Referring firstly to FIGS. 1 and 2 of the drawings one end of an aluminum sheet pressing 10 is shown having a depression 11 adjacent one end thereof the bottom 12 of which has an opening 13. A similar depression (not shown) is formed at the other end of the pressing and a channel 14 extends between thev depressions. The pressing has a peripheral flange 15. A fin is secured to the outside surface of the channel 14 between the depressions l l a part of the tin being illustrated in FIG. 1 and comprising an aluminum strip 16 which is bent into wave form. The crests 17 of the waves of the strip which engage the surface of the channel 14 are cold welded to the channel by pressure inthe direction of the arrows 18 in FIG. 3. The channel is supported on the inside thereof in a manner which permits the pressure used in the cold welding to form grooves indicated at 14a in FIG. 6 extending across the channel in which the crests 17 of the strip are secured. In an alternative method the fins may be resistance welded to the channels 14. The strip 16 is formed with spaced louvres 19 to permit air flow through the sheet. 1
Referring now to FIGS. 4 and 5 of the drawings two pressings 10 are shown assembled with their respective flanges in face to face relationship and the flanges are cold welded together along the line 20 by a press tool (not shown) to provide a watertight joint between the flanges. The cold welding may be carried out in a single operation or, more conveniently, lengths of the flanges may be welded together at overlapping locations until the flanges are welded together around their entire peripheries. a
Referring now to FIGS. 6 and 7 of the drawings the assembly of two of the units is shown the units being placed with the depressions of the plate of one unit in engagement with the depressions of a plate of the other unit and the openings of the depressions in register. The depressions are cold welded together around their openings by a mandrel tool 21 having three spaced pairs of jaws around its circumference. The jaws are radially movable and are withdrawn to permit the mandrel to be inserted through the openings. The jaws 22 are then expanded to engage on either side of the depressions and are closed to cold weld the parts of the depressions engaged by the jaws together. The jaws extend over segmental parts of the bottoms of the depressions and when one set of segments indicated at A, C and E in FIG. 7 has been cold welded by the jaws, the mandrel is rotated and a further set of segments indicated at B, D and F which partly overlap the first set are cold welded. The jaws 22 are then retracted to permit the mandrel to be withdrawn from the depressions. As shown in FIG. 6 the depth and location of the bent strips 16 is such that the crests of the strips which are spaced from their respective sheets abut one another. Further units are then secured to the two units formed in this manner until a stack of the required capacity has been formed.
In all the cold-welding operations referred to above pressures of the order of ton/sq. inchare used.
The communicating depressions on either side of the stack provide header pipes for connection to supply and return conduits and the channels provide passages for coolant flow between the header pipes in the case of a down flow heat exchanger. Alternatively the communicating depressions provide side pipes fora cross-flow type heat exchanger. v
The heat exchanger is particularly suitable for use as a radiator in a coolant system for a motor vehicle -engine.
What is claimed is:
l. A method of making a heat exchanger of the kind comprising a stack of sheet aluminum orv aluminum alloy pressings'in face to face relation, each pressing having two spaced depressions each provided with an opening in the bottom thereof, a channel connecting the depressions and a peripheral flange, which method comprises the steps of:
a. locating fins of wave form having spaced crests on each pressing on the outside'of the channel thereof with certain crests of the waves abutting the channel and the remaining crests spaced from the channel;
b. internally supporting the channel;
c. applying pressure to those crests abutting the channel to cold weld the crests to the channel and at the same time "to" form grooves in the channel which receive said crests;
-d. assembling pairs of'the pressings in face to face relation with the peripheral flanges of the pressings abutting one another;
e. cold welding the peripheral flanges together;
f. assembling thepairs of pressings together with the depressions of adjacent pressings in engagement and said remaining crests of the fins of adjacent pressings in-engagement with one another; and,
g. cold welding said depressions together.
2. A method as claimed in claim 1 wherein the cold welding of each pair of depressions and of each pair of abutting peripheral flanges is carried out in a series of cold welding operations at adjacent locations.
3. A method as claimed in claim 1 wherein the cold welding of each pair of depressions and of each pair of peripheral flanges is carried out in a series of cold welding operations at overlapping locations.
4. A method as claimed in claim 1 wherein the crests of the fins are cold welded to the pressing.
5. A method as claimed in claim 4 wherein the fins are located on the pressings so that crests on the tins of adjacent pressings of each pair abut one another.
It a n: a a

Claims (5)

1. A method of making a heat exchanger of the kind comprising a stack of sheet aluminum or aluminum alloy pressings in face to face relation, each pressing having two spaced depressions each provided with an opening in the bottom thereof, a channel connecting the depressions and a peripheral flange, which method comprises the steps of: a. locating fins of wave form having spaced crests on each pressing on the outside of the channel thereof with certain crests of the waves abutting the channel and the remaining crests spaced from the channel; b. internally supporting the channel; c. applying pressure to those crests abutting the channel to cold weld the crests to the channel and at the same time to form grooves in the channel which receive said crests; d. assembling pairs of the pressings in face to face relation with the peripheral flanges of the pressings abutting one another; e. cold welding the peripheral flanges together; f. assembling the pairs of pressings together with the depressions of adjacent pressings in engagement and said remaining crests of the fins of adjacent pressings in engagement with one another; and, g. cold welding said depressions together.
2. A method as claimed in claim 1 wherein the cold welding of each pair of depressions and of each pair of abutting peripheral flanges is carried out in a series of cold welding operations at adjacent locations.
3. A method as claimed in claim 1 wherein the cold welding of each pair of depressions and of each pair of peripheral flanges is carried out in a series of cold welding operations at overlapping locations.
4. A method as claimed in claim 1 wherein the crests of the fins are cold welded to the pressing.
5. A method as claimed in claim 4 wherein the fins are located on the pressings so that crests on the fins of adjacent pressings of each pair abut one another.
US15600A 1969-03-04 1970-03-02 Methods of making heat exchangers Expired - Lifetime US3702021A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB01568/69A GB1254372A (en) 1969-03-04 1969-03-04 Improvements in or relating to methods of making heat exchangers

Publications (1)

Publication Number Publication Date
US3702021A true US3702021A (en) 1972-11-07

Family

ID=9988634

Family Applications (1)

Application Number Title Priority Date Filing Date
US15600A Expired - Lifetime US3702021A (en) 1969-03-04 1970-03-02 Methods of making heat exchangers

Country Status (2)

Country Link
US (1) US3702021A (en)
GB (1) GB1254372A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4011905A (en) * 1975-12-18 1977-03-15 Borg-Warner Corporation Heat exchangers with integral surge tanks
US4134195A (en) * 1973-04-16 1979-01-16 The Garrett Corporation Method of manifold construction for formed tube-sheet heat exchanger and structure formed thereby
US4310960A (en) * 1973-04-16 1982-01-19 The Garrett Corporation Method of fabrication of a formed plate, counterflow fluid heat exchanger and apparatus thereof
WO1983004090A1 (en) * 1982-05-19 1983-11-24 Ford Motor Company Turbulator radiator tube and radiator construction derived therefrom
EP0124217A1 (en) * 1983-04-29 1984-11-07 Modine Manufacturing Company Heat exchanger
EP0822025A1 (en) * 1996-08-03 1998-02-04 Balcke-Dürr GmbH Method of manufacturing corrosion resistant heat exchangers
US6352787B1 (en) * 1997-12-30 2002-03-05 Rieter Automotive (International)Ag Method for producing an insulating pack for an insulating part
US20030178189A1 (en) * 2002-02-19 2003-09-25 Calsonic Kansei Corporation Stacked heat exchanger
CN100365367C (en) * 2005-10-27 2008-01-30 浙江杭叉工程机械股份有限公司 Combined aluminium pipe rock radiator
CN101608880B (en) * 2008-08-01 2010-10-27 三花丹佛斯（杭州）微通道换热器有限公司 Heat exchanger and fin thereof
CN102735076A (en) * 2012-06-20 2012-10-17 浙江盾安人工环境股份有限公司 Heat exchanger capable of preventing fins from being dropped
US20130180689A1 (en) * 2011-07-19 2013-07-18 Benteler Automobiltechnik Gmbh Method for the production of a heat exchanger, and heat exchanger

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4535839A (en) * 1982-12-20 1985-08-20 General Motors Corporation Heat exchanger with convoluted air center strip
FR2543397B1 (en) * 1983-03-25 1985-06-28 Thomson Csf METHOD FOR MANUFACTURING A HEAT SINK AND A HEAT SINK OBTAINED THEREBY
DE9310827U1 (en) * 1993-07-06 1993-09-23 Balcke-Dürr AG, 40882 Ratingen HEAT EXCHANGER FROM SEVERAL EXCHANGER TUBES ARRANGED IN PARALLEL
FR2709816B1 (en) * 1993-09-07 1995-10-13 Valeo Thermique Moteur Sa Brazed heat exchanger useful in particular as an air conditioning condenser for vehicles.
AU1076295A (en) * 1993-11-17 1995-06-06 Brian Francis Mooney Fluid to fluid heat exchanger with fins
US6174454B1 (en) 1999-01-29 2001-01-16 National Science Council Slurry formulation for selective CMP of organic spin-on-glass insulating layer with low dielectric constant
AU1851997A (en) * 1996-02-01 1997-08-22 Northern Research & Engineering Corporation Unit construction plate-fin heat exchanger
US11262142B2 (en) 2016-04-26 2022-03-01 Northrop Grumman Systems Corporation Heat exchangers, weld configurations for heat exchangers and related systems and methods
CN114714065B (en) * 2022-03-21 2023-06-30 天津市朗尼科技发展有限公司 One goes out two core assembly devices

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1954638A (en) * 1932-02-18 1934-04-10 Rudolph W Loeffler Method of making enameled radiators
US1990752A (en) * 1931-06-23 1935-02-12 Budd Edward G Mfg Co Radiator construction
US2617634A (en) * 1942-05-22 1952-11-11 Jendrassik George Heat exchanger
US2790628A (en) * 1953-04-29 1957-04-30 Utica Drop Forge & Tool Corp Fabricated fin tube heat exchanger
US2821772A (en) * 1952-03-29 1958-02-04 Sawhill Tubular Products Inc Method of making fluid-tight heat exchange tubes
US2874942A (en) * 1954-08-25 1959-02-24 Metal Specialty Company Means for joining pressure-welded tubes
US3071216A (en) * 1958-12-29 1963-01-01 Sonobond Corp Sandwich construction incorporating discrete metal core elements and method of fabrication thereof
GB1007886A (en) * 1963-09-19 1965-10-22 Silvio Sala Sheet metal radiator for water circulation central heating plants and method of manufacturing the same
US3451114A (en) * 1963-12-10 1969-06-24 Hans Werneke Manufacture of a highly efficient aluminium radiator
US3512238A (en) * 1965-02-26 1970-05-19 Aluminium Francais & Cie Gener Method for fabricating radiators
US3537165A (en) * 1968-06-26 1970-11-03 Air Preheater Method of making a plate-type heat exchanger

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1990752A (en) * 1931-06-23 1935-02-12 Budd Edward G Mfg Co Radiator construction
US1954638A (en) * 1932-02-18 1934-04-10 Rudolph W Loeffler Method of making enameled radiators
US2617634A (en) * 1942-05-22 1952-11-11 Jendrassik George Heat exchanger
US2821772A (en) * 1952-03-29 1958-02-04 Sawhill Tubular Products Inc Method of making fluid-tight heat exchange tubes
US2790628A (en) * 1953-04-29 1957-04-30 Utica Drop Forge & Tool Corp Fabricated fin tube heat exchanger
US2874942A (en) * 1954-08-25 1959-02-24 Metal Specialty Company Means for joining pressure-welded tubes
US3071216A (en) * 1958-12-29 1963-01-01 Sonobond Corp Sandwich construction incorporating discrete metal core elements and method of fabrication thereof
GB1007886A (en) * 1963-09-19 1965-10-22 Silvio Sala Sheet metal radiator for water circulation central heating plants and method of manufacturing the same
US3451114A (en) * 1963-12-10 1969-06-24 Hans Werneke Manufacture of a highly efficient aluminium radiator
US3512238A (en) * 1965-02-26 1970-05-19 Aluminium Francais & Cie Gener Method for fabricating radiators
US3537165A (en) * 1968-06-26 1970-11-03 Air Preheater Method of making a plate-type heat exchanger

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4134195A (en) * 1973-04-16 1979-01-16 The Garrett Corporation Method of manifold construction for formed tube-sheet heat exchanger and structure formed thereby
US4310960A (en) * 1973-04-16 1982-01-19 The Garrett Corporation Method of fabrication of a formed plate, counterflow fluid heat exchanger and apparatus thereof
US4011905A (en) * 1975-12-18 1977-03-15 Borg-Warner Corporation Heat exchangers with integral surge tanks
WO1983004090A1 (en) * 1982-05-19 1983-11-24 Ford Motor Company Turbulator radiator tube and radiator construction derived therefrom
EP0124217A1 (en) * 1983-04-29 1984-11-07 Modine Manufacturing Company Heat exchanger
US4561494A (en) * 1983-04-29 1985-12-31 Modine Manufacturing Company Heat exchanger with back to back turbulators and flow directing embossments
EP0822025A1 (en) * 1996-08-03 1998-02-04 Balcke-Dürr GmbH Method of manufacturing corrosion resistant heat exchangers
US6352787B1 (en) * 1997-12-30 2002-03-05 Rieter Automotive (International)Ag Method for producing an insulating pack for an insulating part
US20030178189A1 (en) * 2002-02-19 2003-09-25 Calsonic Kansei Corporation Stacked heat exchanger
CN100365367C (en) * 2005-10-27 2008-01-30 浙江杭叉工程机械股份有限公司 Combined aluminium pipe rock radiator
CN101608880B (en) * 2008-08-01 2010-10-27 三花丹佛斯（杭州）微通道换热器有限公司 Heat exchanger and fin thereof
US20130180689A1 (en) * 2011-07-19 2013-07-18 Benteler Automobiltechnik Gmbh Method for the production of a heat exchanger, and heat exchanger
US9539676B2 (en) * 2011-07-19 2017-01-10 Benteler Automobiltechnik Gmbh Method for the production of a heat exchanger having a tubulator insert
CN102735076A (en) * 2012-06-20 2012-10-17 浙江盾安人工环境股份有限公司 Heat exchanger capable of preventing fins from being dropped

Also Published As

Publication number Publication date
GB1254372A (en) 1971-11-24

Similar Documents

Publication Publication Date Title
US3702021A (en) Methods of making heat exchangers
CA2142233C (en) Heat exchanger with oblong grommetted tubes and locating plates
US3734177A (en) Heat exchanger
US5190101A (en) Heat exchanger manifold
US7234511B1 (en) Modular heat exchanger having a brazed core and method for forming
US5383517A (en) Adhesively assembled and sealed modular heat exchanger
EP0237164B2 (en) Method of making a heat exchanger
KR100437585B1 (en) Method for assembling a heat exchanger
EP1172623B1 (en) Heat exchanger and fluid pipe therefor
GB1500379A (en) Heat exchanger and heat exchange element therefor
EP3355020A1 (en) Heat exchange tube for heat exchanger, heat exchanger and assembly method thereof
US5761808A (en) Method of making a heat exchanger
US3545062A (en) Method of fabricating a heat exchanger from corrugated sheets
US5864112A (en) Welded plate heat exchanger and method for welding heat transfer plates to a plate heat exchanger
US3702022A (en) Methods of making heat exchangers
US20050194124A1 (en) Heat exchanger, in particular oil cooler for a motor vehicle
RU2700213C1 (en) Plate heat exchanger and method of plate heat exchanger manufacturing
US2232562A (en) Method of making a heat exchanger
US5845706A (en) Heat exchanger and process for its manufacturing
US3601878A (en) Method for fabricating a heat exchanger
US3763930A (en) Heat exchanger
US3688372A (en) The method of making a heat exchanger
EP0035078B1 (en) Process for manufacturing finned heat-exchangers
EP0840083A2 (en) A baffle for a heat exchanger
US3266128A (en) Method of making a heat exchanger