US20090242180A1 - Tube assembly for heat exchanger - Google Patents

Tube assembly for heat exchanger Download PDF

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Publication number
US20090242180A1
US20090242180A1 US12/080,209 US8020908A US2009242180A1 US 20090242180 A1 US20090242180 A1 US 20090242180A1 US 8020908 A US8020908 A US 8020908A US 2009242180 A1 US2009242180 A1 US 2009242180A1
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United States
Prior art keywords
tube
recess
set forth
heat exchanger
ridges
Prior art date
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Abandoned
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US12/080,209
Inventor
Luis A. Gonzales
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Delphi Technologies Inc
Original Assignee
Delphi Technologies Inc
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
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Priority to US12/080,209 priority Critical patent/US20090242180A1/en
Assigned to DELPHI TECHNOLOGIES, INC. reassignment DELPHI TECHNOLOGIES, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GONZALEZ, LUIS A.
Publication of US20090242180A1 publication Critical patent/US20090242180A1/en
Abandoned 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
    • F28D1/05383—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture 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
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/151—Making tubes with multiple passages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture 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
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/22—Making finned or ribbed tubes by fixing strip or like material to tubes
    • B21C37/225—Making finned or ribbed tubes by fixing strip or like material to tubes longitudinally-ribbed tubes
    • 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
    • B21D53/08—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of both metal tubes and sheet metal
    • B21D53/085—Making 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
    • 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
    • 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
    • F28F1/40—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element
    • 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
    • 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
    • Y10T29/49377—Tube with heat transfer means
    • Y10T29/49378—Finned tube

Definitions

  • the subject invention is related to a tube assembly for a heat exchanger.
  • a tube assembly in a heat exchanger to have a tube that defines a fluid passage and includes first and second sides spaced from and parallel to each other.
  • Such tube assemblies can include a corrugated fin, having alternating ridges and grooves, that is disposed in the tube between the first and second sides, thereby subdividing the fluid passage into a plurality of passageways.
  • these assemblies are held together by braze disposed between the corrugated fin and the tube.
  • the invention is a tube assembly for a heat exchanger and a method for manufacturing the tube assembly.
  • the inventive tube assembly includes a tube defining a fluid passage.
  • the tube has first and second sides spaced from and parallel to each other.
  • the invention also includes a corrugated fin having alternating ridges and grooves and is disposed in the tube between the first and second sides, thereby subdividing the fluid passage into a plurality of passageways. At least one recess is defined in at least one of the ridges. The recess extends away from the closest one of the first and second sides towards an interior of the tube.
  • FIG. 1 is an exploded perspective view of a heat exchanger utilizing a tube assembly according to an exemplary embodiment of the subject invention
  • FIG. 2 is a cross sectional view of the tube assembly shown in FIG. 1 taken along the section line 2 - 2 of FIG. 1 ;
  • FIG. 3 is a perspective view of a corrugated fin according to the exemplary embodiment of the subject invention.
  • FIG. 4 is a flow chart of a method for forming the exemplary embodiment of the invention.
  • an exemplary tube assembly 20 is generally shown for use in a heat exchanger 22 in an automobile.
  • the exemplary heat exchanger 22 includes a first header 24 .
  • the first header 24 is typically aluminum, but may be any material known in the art.
  • the first header 24 extends along a first centerline A and defines a plurality of first header tube slots 26 that are spaced along the first centerline A.
  • the exemplary heat exchanger 22 further includes a second header 28 .
  • the second header 28 is typically aluminum, but may be any material known in the art.
  • the second header 28 is spaced from and parallel to the first header 24 and extends along a second centerline B.
  • the second header 28 defines a plurality of second header tube slots 30 that are spaced along the second centerline B and aligned with the first header tube slots 26 .
  • the exemplary heat exchanger 22 further includes a plurality of tube assemblies 20 and each tube assembly 20 includes a tube 32 .
  • the tubes 32 are typically aluminum, but may be any material known in the art.
  • Each of the tubes 32 include a first side 34 and a parallel second side 36 that extend between semi-circular first and second edges 38 , 40 .
  • Each of the tubes 32 extend from a first tube end 42 to a second tube end 44 .
  • the ends 42 , 44 are received in the first and second header tube slots 26 , 30 respectively.
  • Each of the tubes 32 define a fluid passage 46 that extends from the first tube end 42 to the second tube end 44 , establishing fluid communication between the first and second headers 24 , 28 .
  • the exemplary heat exchanger 22 further includes a plurality of air fins 48 for dissipating heat from the tubes 32 .
  • the air fins 48 are typically aluminum, but may be any material known in the art. Each of the air fins 48 are brazed between parallel first and second sides 34 , 36 of adjacent tubes 32 .
  • Each of the assemblies 20 further includes a corrugated fin 50 .
  • the corrugated fin 50 is typically aluminum, but may be any material known in the art.
  • Each corrugated fin 50 has alternating ridges 52 and grooves 54 , and is disposed in one of the tubes 32 between the first and second sides 34 , 36 .
  • the inserted corrugated fin 50 subdivides the fluid passage 46 into a plurality of passageways 56 .
  • the ridges 52 are typically flat or rounded, but may be any configuration.
  • the assembly 20 includes at least one recess 58 being defined in at least one of the ridges 52 .
  • the recess 58 extends away from the closest one of the first and second sides 34 , 36 .
  • the at least one recess 58 may be any shape known in the art including a rectangular or circular recess 58 a, 58 b. Further, the at least one recess 58 c may extend along an entire length of the corrugated fin 50 .
  • Alternative embodiments of the invention can include a plurality of recesses 58 , such as at least one recess 58 defined in a plurality of ridges 52 or a plurality of recesses 58 defined in a single ridge 52 .
  • a quantity of flux may be disposed only in the recesses 58 , or may be disposed the entire length of the ridge 52 .
  • FIG. 4 is a flow chart of a method for forming the exemplary embodiment of the invention.
  • the method begins at 100 and at step 102 the at least one recess 58 is formed in the at least one of the ridges 52 of the corrugated fin 50 .
  • a quantity of flux is disposed in the at least one recess 58 .
  • the disposing a quantity of flux in the at least one recess 58 step 104 may further be defined such that disposing flux is only in said recess 58 .
  • the corrugated fin 50 having the alternating ridges 52 and grooves 54 is inserted into the tube 32 to define a plurality of fluid passageways 56 .
  • step 108 the combined corrugated fin 50 and tube 32 are heated after the inserting step 106 to braze the corrugated fin 50 to the tube 32 .
  • the method is then over 110 .
  • the corrugated fin 50 has the ability to retain and transport flux as it is inserted in the tube 32 .
  • the at least one recess 58 further allows for an even distribution of flux over the tube 32 length which allows for better bonding. With uniform distribution of flux over the tube 32 length, tube 32 failure due to high pressure excursions will be greatly reduced.
  • the at least one recess 58 further allows for a reduced amount of flux to be used. With the at least one recess 58 , there is no need to over flux the corrugated fin 50 to compensate for flux lost during the insertion of the corrugated fin 50 into the tube 32 . Further, the reduction of flux and the use of at least one recess 58 allow for a reduction in the potential for flux contamination of downstream components due to the excessive application of flux on the corrugated fin 50 .

Abstract

A tube assembly (20) for a heat exchanger (22) and a method of manufacturing the tube assembly (20) is disclosed herein. The tube assembly (20) includes a tube (32) defining a fluid passage (46). The tube (32) has first and second sides (34, 36) spaced from and parallel to each other. A corrugated fin (50) having alternating ridges (52) and grooves (54) is disposed in the tube (32) between the first and second sides (34, 36). The corrugated fin (50) subdivides the fluid passage (46) into a plurality of passageways (56). At least one recess (58) is defined in at least one of the ridges (52). The recess (58) extends away from the closest one of the first and second sides (34, 36) toward an interior of the tube (32).

Description

    BACKGROUND OF THE INVENTION
  • 1. Field of the Invention
  • The subject invention is related to a tube assembly for a heat exchanger.
  • 2. Description of the Prior Art
  • Various types of heat exchangers are used in automotive applications. It is known for a tube assembly in a heat exchanger to have a tube that defines a fluid passage and includes first and second sides spaced from and parallel to each other. Such tube assemblies can include a corrugated fin, having alternating ridges and grooves, that is disposed in the tube between the first and second sides, thereby subdividing the fluid passage into a plurality of passageways. Typically these assemblies are held together by braze disposed between the corrugated fin and the tube.
  • In recent years, the temperatures and pressures of air in heat exchangers has significantly increased, resulting in failure of heat exchangers. In such temperature/pressure conditions, a major disadvantage of prior art designs has been common failures, such as fatigue fracture, of both the tube and the corrugated fin. In prior art designs, specific fractures, such as transverse fractures, may occur, for example, at tube locations, and, in particular, at the inlet header of the heat exchangers. Also, corrugated fin fracture may occur and lead to contamination in heat exchangers.
    • SUMMARY OF THE INVENTION
  • In summary, the invention is a tube assembly for a heat exchanger and a method for manufacturing the tube assembly. The inventive tube assembly includes a tube defining a fluid passage. The tube has first and second sides spaced from and parallel to each other. The invention also includes a corrugated fin having alternating ridges and grooves and is disposed in the tube between the first and second sides, thereby subdividing the fluid passage into a plurality of passageways. At least one recess is defined in at least one of the ridges. The recess extends away from the closest one of the first and second sides towards an interior of the tube.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • Advantages of the present invention will be readily appreciated, as the same becomes better understood by reference to the following detailed description when considered in connection with the accompanying drawings wherein:
  • FIG. 1 is an exploded perspective view of a heat exchanger utilizing a tube assembly according to an exemplary embodiment of the subject invention;
  • FIG. 2 is a cross sectional view of the tube assembly shown in FIG. 1 taken along the section line 2-2 of FIG. 1;
  • FIG. 3 is a perspective view of a corrugated fin according to the exemplary embodiment of the subject invention; and
  • FIG. 4 is a flow chart of a method for forming the exemplary embodiment of the invention.
    •  DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENT
  • Referring to the Figures, wherein like numerals indicate corresponding parts throughout the several views, an exemplary tube assembly 20 is generally shown for use in a heat exchanger 22 in an automobile.
  • The exemplary heat exchanger 22 includes a first header 24. The first header 24 is typically aluminum, but may be any material known in the art. The first header 24 extends along a first centerline A and defines a plurality of first header tube slots 26 that are spaced along the first centerline A.
  • The exemplary heat exchanger 22 further includes a second header 28. The second header 28 is typically aluminum, but may be any material known in the art. The second header 28 is spaced from and parallel to the first header 24 and extends along a second centerline B. The second header 28 defines a plurality of second header tube slots 30 that are spaced along the second centerline B and aligned with the first header tube slots 26.
  • The exemplary heat exchanger 22 further includes a plurality of tube assemblies 20 and each tube assembly 20 includes a tube 32. The tubes 32 are typically aluminum, but may be any material known in the art. Each of the tubes 32 include a first side 34 and a parallel second side 36 that extend between semi-circular first and second edges 38, 40. Each of the tubes 32 extend from a first tube end 42 to a second tube end 44. The ends 42, 44 are received in the first and second header tube slots 26, 30 respectively. Each of the tubes 32 define a fluid passage 46 that extends from the first tube end 42 to the second tube end 44, establishing fluid communication between the first and second headers 24, 28.
  • The exemplary heat exchanger 22 further includes a plurality of air fins 48 for dissipating heat from the tubes 32. The air fins 48 are typically aluminum, but may be any material known in the art. Each of the air fins 48 are brazed between parallel first and second sides 34, 36 of adjacent tubes 32.
  • Each of the assemblies 20 further includes a corrugated fin 50. The corrugated fin 50 is typically aluminum, but may be any material known in the art. Each corrugated fin 50 has alternating ridges 52 and grooves 54, and is disposed in one of the tubes 32 between the first and second sides 34, 36. The inserted corrugated fin 50 subdivides the fluid passage 46 into a plurality of passageways 56. The ridges 52 are typically flat or rounded, but may be any configuration.
  • The assembly 20 includes at least one recess 58 being defined in at least one of the ridges 52. The recess 58 extends away from the closest one of the first and second sides 34, 36. The at least one recess 58 may be any shape known in the art including a rectangular or circular recess 58 a, 58 b. Further, the at least one recess 58 c may extend along an entire length of the corrugated fin 50. Alternative embodiments of the invention can include a plurality of recesses 58, such as at least one recess 58 defined in a plurality of ridges 52 or a plurality of recesses 58 defined in a single ridge 52. A quantity of flux may be disposed only in the recesses 58, or may be disposed the entire length of the ridge 52.
  • FIG. 4 is a flow chart of a method for forming the exemplary embodiment of the invention. The method begins at 100 and at step 102 the at least one recess 58 is formed in the at least one of the ridges 52 of the corrugated fin 50. Next at step 104, a quantity of flux is disposed in the at least one recess 58. The disposing a quantity of flux in the at least one recess 58 step 104 may further be defined such that disposing flux is only in said recess 58. Next at step 106, the corrugated fin 50 having the alternating ridges 52 and grooves 54 is inserted into the tube 32 to define a plurality of fluid passageways 56. The ridges 52 contact the inner, opposite surfaces of the tube 32. Finally at step 108, the combined corrugated fin 50 and tube 32 are heated after the inserting step 106 to braze the corrugated fin 50 to the tube 32. The method is then over 110.
  • As such, the corrugated fin 50 has the ability to retain and transport flux as it is inserted in the tube 32. The at least one recess 58 further allows for an even distribution of flux over the tube 32 length which allows for better bonding. With uniform distribution of flux over the tube 32 length, tube 32 failure due to high pressure excursions will be greatly reduced. The at least one recess 58 further allows for a reduced amount of flux to be used. With the at least one recess 58, there is no need to over flux the corrugated fin 50 to compensate for flux lost during the insertion of the corrugated fin 50 into the tube 32. Further, the reduction of flux and the use of at least one recess 58 allow for a reduction in the potential for flux contamination of downstream components due to the excessive application of flux on the corrugated fin 50.
  • While the invention has been described with reference to an exemplary embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed as the best mode contemplated for carrying out this invention, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims (20)

1. A tube assembly for a heat exchanger comprising:
a tube defining a fluid passage and having first and second sides spaced from and parallel to each other; and
a corrugated fin having alternating ridges and grooves and disposed in said tube between said first and second sides whereby said fluid passage is subdivided into a plurality of passageways, and wherein at least one recess is defined in at least one of said ridges of said corrugated fin and extends away from a closest one of said first and second sides towards an interior of said tube.
2. The tube assembly as set forth in claim 1 wherein said at least one recess is rectangular.
3. The tube assembly as set forth in claim 1 wherein said at least one recess is circular.
4. The tube assembly as set forth in claim 1 wherein said at least one recess extends along an entire length of said corrugated fin.
5. The tube assembly as set forth in claim 1 wherein said at least one recess includes a plurality of recesses defined in one of said ridges.
6. The tube assembly as set forth in claim 1 wherein said at least one recess includes a plurality of recesses, including at least one recess defined in a plurality of said ridges.
7. The tube assembly as set forth in claim 1 further comprising a quantity of flux disposed substantially only in said at least one recess.
8. The tube assembly as set forth in claim 1 wherein said ridges are flat or rounded.
9. A heat exchanger in automobile comprising:
a first header extending along a first centerline and defining a plurality of first header tube slots spaced along said first centerline;
a second header spaced from and extending parallel to said first header along a second centerline, said second header defining a plurality of second header tube slots being spaced along said second centerline and aligned with said first header tube slots;
a plurality of tubes each having a first side and a second side parallel to said first side and each of said sides extending between semi-circular first and second edges and each of said tubes extending from a first tube end to a second tube end and between aligned said first and second header tube slots and each of said tubes defining a fluid passage from said first tube end to said second tube end for establishing fluid communication between said first and second headers;
a plurality of air fins each individually disposed between an adjacent two of said tubes for dissipating heat from said tubes;
a plurality of corrugated fins each having alternating ridges and grooves and individually disposed in one of said tubes between said first and second sides whereby said fluid passage is subdivided into a plurality of passageways and wherein each of said includes at least one recess defined in one of said ridges and extending away from a closest one of said first and second sides towards an interior of said tube.
10. The heat exchanger as set forth in claim 10 wherein said at least one recess is rectangular.
11. The heat exchanger as set forth in claim 10 wherein said at least one recess is circular.
12. The heat exchanger as set forth in claim 10 wherein said at least one recess extends along an entire length of said corrugated fin.
13. The heat exchanger as set forth in claim 10 wherein said at least one recesses includes a plurality of recesses.
14. The heat exchanger as set forth in claim 13 wherein said at least one recess includes a plurality of recesses defined in a single one of said plurality of ridges.
15. The heat exchanger as set forth in claim 13 wherein said at least one recess includes one or more recesses defined in a plurality of said ridges.
16. The heat exchanger as set forth in claim 10 further comprising a quantity of flux disposed substantially only in said recess.
17. The heat exchanger as set forth in claim 10 wherein said ridges are flat or rounded.
18. The heat exchanger as set forth in claim 10 wherein said first header, said second header, said plurality of tubes, said corrugated fin, and said air fins are aluminum.
19. A method for manufacturing a tube assembly for a heat exchanger comprising the steps of:
inserting a corrugated fin having alternating ridges and grooves into a tube to define a plurality of fluid passageways such that the ridges contact an inner surface of the tube;
forming at least one recess in at least one of the ridges of the corrugated fin;
disposing a quantity of flux in the at least one recess; and
heating the combined corrugated fin and tube after said inserting step to braze the corrugated fin to the tube.
20. The method as set forth in claim 10 wherein said disposing step is further defined such that flux is disposed on the corrugated fin only in the recess.
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160061537A1 (en) * 2014-08-28 2016-03-03 Delphi Technologies, Inc. Heat exchanger fin retention feature
US20170219291A1 (en) * 2016-01-29 2017-08-03 Deere & Company Heat exchanger with improved plugging resistance
US20200018266A1 (en) * 2018-07-11 2020-01-16 Hyundai Motor Company Exhaust gas recirculation cooler

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US4962622A (en) * 1989-06-01 1990-10-16 H. H. Robertson Company Profiled sheet metal building unit and method for making the same
US5295302A (en) * 1991-10-29 1994-03-22 Calsonic Corporation Method of manufacturing an aluminum heat exchanger
US5560424A (en) * 1991-10-23 1996-10-01 Nippondenso Co., Ltd. Inner fin and manufacturing method of the same
US6213158B1 (en) * 1999-07-01 2001-04-10 Visteon Global Technologies, Inc. Flat turbulator for a tube and method of making same
US20020074109A1 (en) * 2000-12-18 2002-06-20 Rhodes Eugene E. Turbulator with offset louvers and method of making same
US6688380B2 (en) * 2002-06-28 2004-02-10 Aavid Thermally, Llc Corrugated fin heat exchanger and method of manufacture

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Publication number Priority date Publication date Assignee Title
US2119761A (en) * 1935-06-18 1938-06-07 Clinton H Wentworth Heat interchange device
US4962622A (en) * 1989-06-01 1990-10-16 H. H. Robertson Company Profiled sheet metal building unit and method for making the same
US5560424A (en) * 1991-10-23 1996-10-01 Nippondenso Co., Ltd. Inner fin and manufacturing method of the same
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US6213158B1 (en) * 1999-07-01 2001-04-10 Visteon Global Technologies, Inc. Flat turbulator for a tube and method of making same
US20020074109A1 (en) * 2000-12-18 2002-06-20 Rhodes Eugene E. Turbulator with offset louvers and method of making same
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Cited By (6)

* Cited by examiner, † Cited by third party
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US20160061537A1 (en) * 2014-08-28 2016-03-03 Delphi Technologies, Inc. Heat exchanger fin retention feature
US10139172B2 (en) * 2014-08-28 2018-11-27 Mahle International Gmbh Heat exchanger fin retention feature
US20170219291A1 (en) * 2016-01-29 2017-08-03 Deere & Company Heat exchanger with improved plugging resistance
US11346608B2 (en) * 2016-01-29 2022-05-31 Deere & Company Heat exchanger with improved plugging resistance
US20200018266A1 (en) * 2018-07-11 2020-01-16 Hyundai Motor Company Exhaust gas recirculation cooler
US10683832B2 (en) * 2018-07-11 2020-06-16 Hyundai Motor Company Exhaust gas recirculation cooler

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