WO2005073659A1 - Brazed plate fin heat exchanger - Google Patents

Brazed plate fin heat exchanger Download PDF

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Publication number
WO2005073659A1
WO2005073659A1 PCT/US2005/001550 US2005001550W WO2005073659A1 WO 2005073659 A1 WO2005073659 A1 WO 2005073659A1 US 2005001550 W US2005001550 W US 2005001550W WO 2005073659 A1 WO2005073659 A1 WO 2005073659A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat exchanger
tube
fin
plate fin
collar
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.)
Ceased
Application number
PCT/US2005/001550
Other languages
French (fr)
Inventor
Paul L. Mitchell
Michael E. Haidenreich
Roger A. Loomis
James R. Harris
David L. Davis
David E. Lollar
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.)
Modine Grenada LLC
Original Assignee
Outokumpu Heatcraft USA LLC
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 Outokumpu Heatcraft USA LLC filed Critical Outokumpu Heatcraft USA LLC
Priority to EP05705853A priority Critical patent/EP1714100B1/en
Priority to CN200580005954.0A priority patent/CN1961192B/en
Priority to JP2006551197A priority patent/JP5296990B2/en
Priority to AT05705853T priority patent/ATE556285T1/en
Publication of WO2005073659A1 publication Critical patent/WO2005073659A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081—Heat exchange elements made from metals or metal alloys
    • F28F21/084—Heat exchange elements made from metals or metal alloys from aluminium or aluminium alloys
    • 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
    • F28F1/24—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 and extending transversely
    • F28F1/32—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 and extending transversely the means having portions engaging further tubular elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081—Heat exchange elements made from metals or metal alloys
    • F28F21/085—Heat exchange elements made from metals or metal alloys from copper or copper alloys
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/04—Fastening; Joining by brazing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/12—Fastening; Joining by methods involving deformation of the elements
    • F28F2275/125—Fastening; Joining by methods involving deformation of the elements by bringing elements together and expanding

Definitions

  • This invention is directed to heat exchanger fin collars, and more particularly to an improved fin collar for use in a brazed plate fin heat exchanger.
  • Plate fin and tube heat exchangers are used in a wide variety of applications including, but not limited to, air conditioning and refrigeration where it is desired to exchange heat between two fluids, usually a pure liquid or a liquid undergoing a phase change to or from a gas, flowing in the heat exchanger tubes and a gas, usually air, flowing around the heat exchanger plate fins and tube exteriors.
  • a plurality of thin plate fins are arranged parallel to each other between two tube sheets.
  • Heat exchanger tubes pass through holes in the tube sheets and plate fins. There is a firm fit between the tubes and the plate fins so that the effective surface area, and thus the heat transfer area, of the heat exchanger tubes is increased by the area of the plate fins.
  • a plate fin and tube heat exchanger offers improved heat transfer performance over a plain tube type heat exchanger of the same size.
  • a common method of manufacturing this type of heat exchanger is to first assemble a plurality of plate fins between two tube sheets, then lace a plurality of hair pin tubes through selected holes in the plate fins and similar holes in each of the tube sheets. Next, bells are formed in the end of hairpin tubes, then the legs of the tubes are expanded to insure a tight mechanical fit between the tubes and plate fins.
  • a brazed plate fin heat exchanger with an improved braze joint at the tube-to-fin joint .
  • the present invention meets the above-described need by providing a fin collar having a shape that enhances flux application and brazing clad flow into the tube-to- fin joint to provide an improved thermal and structural bond.
  • Figure 1 is a perspective view of a plate fin heat exchanger of the present invention
  • Figure 2 is a perspective view of a tube of the present invention disposed through several plate fins
  • Figure 3 is a perspective view of a fin collar of the present invention
  • Figure 4 is a perspective view of an alternate embodiment of the fin collar of the present invention
  • Figure 5 is a perspective view of another alternate embodiment of the fin collar of the present invention
  • Figure 6 is a perspective view of the fin collar of the present invention shown with a representation of the air flow over the collar
  • Figure 7 is a top plan view of the fin collar of Figure 6.
  • Fig. 1 depicts a plate fin and tube heat exchanger 10 containing plate fins 12 that embody the present invention.
  • Each plate fin has a plurality of holes 16.
  • a common method of manufacturing heat exchanger 10 is to first assemble a plurality of plate fins 12 between two tube sheets 18, then lace a plurality of hairpin tubes 20 through selected holes 16 in the plate fins 12 and similar holes 16 in each of tube sheets 18.
  • the heat exchanger assembly is completed by fitting up a plurality of return bends 22 to the ends of hairpin tubes 20 so as to form one or more closed fluid flow paths through the tubes of the heat exchanger.
  • a first fluid such as a refrigerant
  • a second fluid such as air
  • a first fluid flows through heat exchanger 10 via a fluid flow path or paths defined by interconnected hairpin tubes 20 and return bends 22.
  • a second fluid such as air
  • a first fluid flows through heat exchanger 10 via a fluid flow path or paths defined by interconnected hairpin tubes 20 and return bends 22.
  • a second fluid such as air
  • a first fluid flows through heat exchanger 10 via a fluid flow path or paths defined by interconnected hairpin tubes 20 and return bends 22.
  • a second fluid such as air
  • a second fluid flows over and around plate fins 12 and tubes 20. If there is a temperature differential between the two fluids, then heat transfer from the warmer to the cooler of the two takes place through the tube walls and plate fins.
  • a single tube 20 is shown disposed through a plurality of plate fins 12.
  • Each plate fin 12 is provided with an upstanding fin collar 30 disposed around the openings 16. As shown, the collar 30 may be curved so
  • the number of plate fins 12 that can be placed around the tube 20 is determined by the height of the collar 30.
  • the tube 20 to fin 12 joint is brazed in a controlled atmosphere braze furnace.
  • the brazing temperatures will range between 1070°F and 1120°F depending on the clad used.
  • the tube 20 may be constructed of an aluminum alloy that is clad or unclad.
  • the tube 20 may be roll formed with a welded seam or a lock seam.
  • the tube 20 may be extruded.
  • the tube 20 may have a wall thickness of 0.016" to 0.05" depending on the tube diameter and the working pressure.
  • the tube 20 may have a cross-sectional shape that is round, circular, oval, or the like.
  • the tube material is a long life, high strength, corrosion resistant alloy.
  • a 3003 aluminum alloy may be used.
  • an Alcan X-1000 may be used.
  • the clad alloys may be 4045 or 4343 aluminum alloys.
  • the fins 12 and fin collar 30 may be constructed out of an aluminum alloy 3003 with a 4045 or 4343 alloy clad. If unclad, the fin may be constructed from an 1100 aluminum alloy.
  • the fins may be constructed with a thickness of 0.003" to 0.016".
  • the present invention may be used for brazing a copper fin to copper tubing or brazing an aluminum fin to copper tubing, as will be evident to those of ordinary skill in the art. In Fig.
  • a first embodiment of the fin collar 30 of the present invention is shown.
  • a plurality of slits 32 are disposed around the circumference of the fin collar 30.
  • the slits 32 may be formed by removing material from the collar and may be disposed equidistantly around the perimeter of the collar 30.
  • the slit may extend from the top 43 of the collar 30 and terminate at a point approximately 0.02" from the underside of the fin.
  • the slit 32 is defined by a pair of opposed walls 34 and 36.
  • the walls 34 and 36 may be angled such that the width 40 across the slit 32 gradually increases from the bottom 42 of the slit 32 to the top 43 of the collar 30.
  • the slit 32 may range from 0.015" to 0.15" in width depending on the collar height and the number of slits.
  • the slits 32 improve the tube- to-fin joint both thermally and structurally.
  • the fin collar 30 of the present invention enhances the flux application and the brazing clad flow because the slits 32 allow the cladding to flow through on both sides of the collar 30.
  • the split fin collar 30 increases heat transfer between the air and tube surfaces.
  • the slits 32 open access to a portion of the surface of the primary tube 20 for the air flow allowing direct heat transfer from air to the tube 20 without the resistance from secondary sources. Ordinarily these portions of the primary tube 20 would be covered by a solid fin collar.
  • Fin collar 40 has a rectangular-shaped slit 42.
  • the slit 42 is defined by a bottom wall 44 and opposed side walls 46 and 48.
  • the bottom wall 44 may extend to a point approximately 0.02" from the underside of the fin 12.
  • the collars 40 may have a curvature such that they have a convex shape on the side that faces the tubes 20.
  • Fin collar 60 is elongated in the longitudinal (tube axis) direction.
  • the collar 60 has a plurality of slits 62 defined therein.
  • the slits 62 also have a rectangular shape and are defined by a bottom wall 64 and a pair of opposed side walls 66, 68.
  • the bottom wall 64 may extend to a point approximately 0.02" from the underside of the fin 12.
  • arrows 70 representing air flow around the collar 30 during use.
  • the shape of the fin collar 30 provides interruptions around the circumference of the fin collar 30 perpendicular to air flow. The interruptions will provide turbulence, which is indicated by curved lines 80, in the boundary layer of air along the fin collar 30 which will increase the rate of heat transfer between the air and the tube 20.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)

Abstract

A fin collar (30) comprises a plurality of slits (32) disposed around a perimeter of the collar (30) enhances flux application and brazing clad flow into the tube to fin joint to provide an improved thermal and structural bond.

Description

BRAZED PLATE FIN HEAT EXCHANGER
FIELD OF INVENTION This invention is directed to heat exchanger fin collars, and more particularly to an improved fin collar for use in a brazed plate fin heat exchanger.
BACKGROUND OF THE INVENTION Plate fin and tube heat exchangers are used in a wide variety of applications including, but not limited to, air conditioning and refrigeration where it is desired to exchange heat between two fluids, usually a pure liquid or a liquid undergoing a phase change to or from a gas, flowing in the heat exchanger tubes and a gas, usually air, flowing around the heat exchanger plate fins and tube exteriors. In such a heat exchanger, a plurality of thin plate fins are arranged parallel to each other between two tube sheets. Heat exchanger tubes pass through holes in the tube sheets and plate fins. There is a firm fit between the tubes and the plate fins so that the effective surface area, and thus the heat transfer area, of the heat exchanger tubes is increased by the area of the plate fins. Because of this increase in surface area, a plate fin and tube heat exchanger offers improved heat transfer performance over a plain tube type heat exchanger of the same size. A common method of manufacturing this type of heat exchanger is to first assemble a plurality of plate fins between two tube sheets, then lace a plurality of hair pin tubes through selected holes in the plate fins and similar holes in each of the tube sheets. Next, bells are formed in the end of hairpin tubes, then the legs of the tubes are expanded to insure a tight mechanical fit between the tubes and plate fins. In order to improve the thermal and structural bond resulting from mechanical joining of the tubes and plate fins, there is a need for a brazed plate fin heat exchanger with an improved braze joint at the tube-to-fin joint .
SUMMARY OF THE INVENTION The present invention meets the above-described need by providing a fin collar having a shape that enhances flux application and brazing clad flow into the tube-to- fin joint to provide an improved thermal and structural bond.
BRIEF DESCRIPTION OF THE DRAWINGS The invention is illustrated in the drawings in which like reference characters designate the same or similar parts throughout the figures of which: Figure 1 is a perspective view of a plate fin heat exchanger of the present invention; Figure 2 is a perspective view of a tube of the present invention disposed through several plate fins; Figure 3 is a perspective view of a fin collar of the present invention; Figure 4 is a perspective view of an alternate embodiment of the fin collar of the present invention; Figure 5 is a perspective view of another alternate embodiment of the fin collar of the present invention; Figure 6 is a perspective view of the fin collar of the present invention shown with a representation of the air flow over the collar; and, Figure 7 is a top plan view of the fin collar of Figure 6. DETAILED DESCRIPTION Fig. 1 depicts a plate fin and tube heat exchanger 10 containing plate fins 12 that embody the present invention. Each plate fin has a plurality of holes 16. A common method of manufacturing heat exchanger 10 is to first assemble a plurality of plate fins 12 between two tube sheets 18, then lace a plurality of hairpin tubes 20 through selected holes 16 in the plate fins 12 and similar holes 16 in each of tube sheets 18. The heat exchanger assembly is completed by fitting up a plurality of return bends 22 to the ends of hairpin tubes 20 so as to form one or more closed fluid flow paths through the tubes of the heat exchanger. When installed and operating in a device such as an air conditioner, a first fluid, such as a refrigerant, flows through heat exchanger 10 via a fluid flow path or paths defined by interconnected hairpin tubes 20 and return bends 22. A second fluid, such as air, flows over and around plate fins 12 and tubes 20. If there is a temperature differential between the two fluids, then heat transfer from the warmer to the cooler of the two takes place through the tube walls and plate fins. Turning to Fig. 2, a single tube 20 is shown disposed through a plurality of plate fins 12. Each plate fin 12 is provided with an upstanding fin collar 30 disposed around the openings 16. As shown, the collar 30 may be curved so that a convex surface 31 faces the tube 20. The number of plate fins 12 that can be placed around the tube 20 is determined by the height of the collar 30. In order to manufacture the heat exchanger of the present invention, the tube 20 to fin 12 joint is brazed in a controlled atmosphere braze furnace. The brazing temperatures will range between 1070°F and 1120°F depending on the clad used. The tube 20 may be constructed of an aluminum alloy that is clad or unclad. The tube 20 may be roll formed with a welded seam or a lock seam. As an alternative, the tube 20 may be extruded. The tube 20 may have a wall thickness of 0.016" to 0.05" depending on the tube diameter and the working pressure. The tube 20 may have a cross-sectional shape that is round, circular, oval, or the like. The tube material is a long life, high strength, corrosion resistant alloy. For extruded tubes, a 3003 aluminum alloy may be used. For roll formed tube an Alcan X-1000 may be used. The clad alloys may be 4045 or 4343 aluminum alloys. The fins 12 and fin collar 30 may be constructed out of an aluminum alloy 3003 with a 4045 or 4343 alloy clad. If unclad, the fin may be constructed from an 1100 aluminum alloy. The fins may be constructed with a thickness of 0.003" to 0.016". In addition to the aluminum alloys described above, the present invention may be used for brazing a copper fin to copper tubing or brazing an aluminum fin to copper tubing, as will be evident to those of ordinary skill in the art. In Fig. 3, a first embodiment of the fin collar 30 of the present invention is shown. A plurality of slits 32 are disposed around the circumference of the fin collar 30. The slits 32 may be formed by removing material from the collar and may be disposed equidistantly around the perimeter of the collar 30. The slit may extend from the top 43 of the collar 30 and terminate at a point approximately 0.02" from the underside of the fin. The slit 32 is defined by a pair of opposed walls 34 and 36. The walls 34 and 36 may be angled such that the width 40 across the slit 32 gradually increases from the bottom 42 of the slit 32 to the top 43 of the collar 30. The slit 32 may range from 0.015" to 0.15" in width depending on the collar height and the number of slits. The slits 32 improve the tube- to-fin joint both thermally and structurally. With regard to structural properties at the joint, the fin collar 30 of the present invention enhances the flux application and the brazing clad flow because the slits 32 allow the cladding to flow through on both sides of the collar 30. With regard to heat transfer performance, the split fin collar 30 increases heat transfer between the air and tube surfaces. The slits 32 open access to a portion of the surface of the primary tube 20 for the air flow allowing direct heat transfer from air to the tube 20 without the resistance from secondary sources. Ordinarily these portions of the primary tube 20 would be covered by a solid fin collar. Turning to Fig. 4, an alternate embodiment of the fin collar of the present invention is shown. Fin collar 40 has a rectangular-shaped slit 42. The slit 42 is defined by a bottom wall 44 and opposed side walls 46 and 48. The bottom wall 44 may extend to a point approximately 0.02" from the underside of the fin 12. The collars 40 may have a curvature such that they have a convex shape on the side that faces the tubes 20. In Fig. 5, another alternate embodiment of the fin collar of the present invention is shown. Fin collar 60 is elongated in the longitudinal (tube axis) direction. The collar 60 has a plurality of slits 62 defined therein. The slits 62 also have a rectangular shape and are defined by a bottom wall 64 and a pair of opposed side walls 66, 68. The bottom wall 64 may extend to a point approximately 0.02" from the underside of the fin 12. In Figs. 6 and 7, the fin collar 30 of the present invention is shown with arrows 70 representing air flow around the collar 30 during use. The shape of the fin collar 30 provides interruptions around the circumference of the fin collar 30 perpendicular to air flow. The interruptions will provide turbulence, which is indicated by curved lines 80, in the boundary layer of air along the fin collar 30 which will increase the rate of heat transfer between the air and the tube 20. The increased turbulence will also occur around the area near the base of the fin collar 30 in the area of highest fin efficiency, increasing heat transfer rates in that area. While the invention has been described in connection with certain embodiments, it is not intended to limit the scope of the invention to the particular forms set forth, but, on the contrary, it is intended to cover such alternatives, modifications, and equivalents as may be included within the spirit and scope of the invention as defined by the appended claims.

Claims

WHAT IS CLAIMED IS:
1. A heat exchanger, comprising: at least one plate fin having a first side, a second side, and at least one opening defined therein, ,- at least one fin collar disposed on the plate fin around the at least one opening, the fin collar having an upstanding wall extending from the plate fin, the wall having a plurality of slits defined therein; and, at least one tube for conveying a pressurized fluid, the tube being disposed through the at least one opening in the plate fin.
2. The heat exchanger of Claim 1, wherein the at least one tube has a cross-sectional shape that is round.
3. The heat exchanger of Claim 1, wherein the at least one tube has a cross-sectional shape that is circular.
4. The heat exchanger of Claim 1, wherein the at least one tube has a cross-sectional shape that is oval.
5. The heat exchanger of Claim 1, wherein the plurality of slits are disposed substantially equidistantly around a perimeter of the collar.
6. The heat exchanger of Claim 1, wherein the plurality of slits are defined by a pair of opposed walls that are angled such that the slit is wider at a point distal to the plate fin than it is at a point proximal to the plate fin.
7. The heat exchanger of Claim 1, wherein the plurality of slits have a rectangular shape.
8. The heat exchanger of Claim 1, wherein the at least one fin collar is constructed of an aluminum alloy.
9. The heat exchanger of Claim 8, further comprising a cladding layer.
10. The heat exchanger of Claim 1, wherein the at least one tube is constructed of an aluminum alloy.
11. The heat exchanger of Claim 1, wherein the at least one plate fin is attached to the at least one tube by brazing.
12. The heat exchanger of Claim 1, wherein the at least one plate fin is attached to the at least one tube by brazing in a controlled atmosphere brazing oven.
13. The heat exchanger of Claim 1, wherein the at least one tube is constructed of copper.
14. The heat exchanger of Claim 1, wherein the at least one plate fin is constructed of copper.
15. The heat exchanger of Claim 1, wherein the fin collar is unclad.
16. A heat exchanger, comprising: at least one plate fin having a first side, a second side and at least one opening defined therein; at least one fin collar disposed on the plate fin around the at least one opening, the fin collar having an upstanding wall extending from the plate fin, the wall having a plurality of slits defined therein; and, at least one tube for conveying a pressurized fluid, the tube being disposed through the opening in the plate fin and attached to the fin collar by brazing.
17. The heat exchanger of Claim 16, wherein the at least one tube has a cross-sectional shape that is round.
18. The heat exchanger of Claim 16, wherein the at least one tube has a cross-sectional shape that is circular.
19. The heat exchanger of Claim 16, wherein the at least one tube has a cross-sectional shape that is oval.
20. The heat exchanger of Claim 16, wherein the plurality of slits are disposed substantially equidistantly around a perimeter of the collar.
21. The heat exchanger of Claim 16, wherein the plurality of slits are defined by a pair of opposed walls that are angled such that the slit is wider at a point distal to the plate fin than it is at a point proximal to the plate fin.
22. The heat exchanger of Claim 16, wherein the plurality of slits have a rectangular shape.
23. The heat exchanger of Claim 16, wherein the at least one fin collar is constructed of an aluminum alloy.
24. The heat exchanger of Claim 23, further comprising a cladding layer.
25. The heat exchanger of Claim 16, wherein the at least one tube is constructed of an aluminum alloy.
26. The heat exchanger of Claim 16, wherein the at least one fin collar is attached to the at least one tube by brazing.
27. The heat exchanger of Claim 16, wherein the at least one plate fin is attached to the at least one tube by brazing in a controlled atmosphere brazing oven.
28. The heat exchanger of Claim 16, wherein the at least one tube is constructed of copper.
29. The heat exchanger of Claim 16, wherein the at least one plate fin is constructed of copper.
30. The heat exchanger of Claim 16, wherein the fin collar is unclad.
31. A method of forming a plate fin heat exchanger, comprising: providing at least one plate fin having a first side, a second side, and at least one opening; at least one fin collar disposed on the plate fin around the at least one opening, the fin collar having an upstanding wall extending from the plate fin, the wall having a plurality of slits defined therein; and at least one tube for conveying a pressurized fluid, the tube being disposed through the at least one opening and attached to the fin collar by brazing,- providing a cladding material for brazing the plate fin-to-tube joint; and, brazing the plate fin-to-tube joint in a controlled atmosphere brazing oven.
PCT/US2005/001550 2004-01-20 2005-01-13 Brazed plate fin heat exchanger Ceased WO2005073659A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP05705853A EP1714100B1 (en) 2004-01-20 2005-01-13 Method of forming a brazed plate fin heat exchanger
CN200580005954.0A CN1961192B (en) 2004-01-20 2005-01-13 Brazed radiating fin heat exchanger
JP2006551197A JP5296990B2 (en) 2004-01-20 2005-01-13 Brazed plate fin heat exchanger
AT05705853T ATE556285T1 (en) 2004-01-20 2005-01-13 METHOD FOR MAKING A BRAZED FIN TUBE HEAT EXCHANGER

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/761,448 US20050155750A1 (en) 2004-01-20 2004-01-20 Brazed plate fin heat exchanger
US10/761,448 2004-01-20

Publications (1)

Publication Number Publication Date
WO2005073659A1 true WO2005073659A1 (en) 2005-08-11

Family

ID=34750171

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/001550 Ceased WO2005073659A1 (en) 2004-01-20 2005-01-13 Brazed plate fin heat exchanger

Country Status (6)

Country Link
US (2) US20050155750A1 (en)
EP (1) EP1714100B1 (en)
JP (1) JP5296990B2 (en)
CN (1) CN1961192B (en)
AT (1) ATE556285T1 (en)
WO (1) WO2005073659A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2185900A1 (en) * 2007-08-29 2010-05-19 Micro Motion, Inc. Brace bar with tabbed apertures for brazing to a flow tube

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2299300B1 (en) * 2005-08-01 2009-04-16 Jose Maria Vergara Uranga HEAT EXCHANGER MANUFACTURED IN COPPER AND BRASS ALLOYS OF VERY HIGH TEMPERATURE OF RECOGNITION AND HIGH HARDNESS RESISTANT TO HIGH INTERNAL PRESSURES.
TWI320300B (en) * 2005-11-18 2010-02-01 Dissipating heat device of fin-type
USD566824S1 (en) * 2006-03-20 2008-04-15 Ishikawajima-Harima Heavy Industries Co., Ltd. Plate fin for a heat exchanger
EP1890101B1 (en) * 2006-08-08 2009-10-28 Behr GmbH & Co. KG Fin for heat exchanger, heat exchanger with such a fin and method for producing the heat exchanger
US8152047B2 (en) * 2007-04-16 2012-04-10 Luvata Franklin, Inc. Method of producing a corrosion resistant aluminum heat exchanger
US20100212868A1 (en) * 2008-02-15 2010-08-26 Yang Chien-Lung Assembled configuration of cooling fins and heat pipes
US20090218073A1 (en) * 2008-02-28 2009-09-03 Asia Vital Components Co., Ltd. Cooling fin
US8037699B2 (en) 2008-04-24 2011-10-18 Mitsubishi Electric Corporation Heat exchanger and air conditioner using the same
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JP2012202560A (en) * 2011-03-23 2012-10-22 Sanwa Thermotech Co Ltd Heat exchanger and method of manufacturing the same
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US20150075760A1 (en) * 2012-04-12 2015-03-19 Carrier Corporation Aluminum alloy tube-fin heat exchanger
US9154008B2 (en) * 2012-10-02 2015-10-06 Siemens Industry, Inc. Hybrid rotor bar assemblies, electric motors including hybrid rotor bar assemblies, and methods of assemblying same
US10006662B2 (en) * 2013-01-21 2018-06-26 Carrier Corporation Condensing heat exchanger fins with enhanced airflow
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US20140262188A1 (en) * 2013-03-15 2014-09-18 Ramana Venkato Rao Sistla Fin Spacing On An Evaporative Atmospheric Water Condenser
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JP7464872B1 (en) 2022-09-30 2024-04-10 ダイキン工業株式会社 Heat exchanger

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5396556A (en) * 1977-02-02 1978-08-23 Hitachi Ltd Cooling fin
GB2110811A (en) * 1981-11-28 1983-06-22 Salter & Co Ltd G Finned tube heat exchanger members
JPH02154992A (en) * 1988-12-05 1990-06-14 Sumitomo Light Metal Ind Ltd Heat exchanger employing flat tube
US5117905A (en) * 1987-08-29 1992-06-02 Sueddeutsche Kuehlerfabrik Julius Fr. Behr Gmbh & Co. Kg Heat exchanger with fins
JP2003161589A (en) * 2001-11-21 2003-06-06 Toyo Radiator Co Ltd Air conditioning plate fin type heat exchanger

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1634110A (en) * 1926-03-17 1927-06-28 Wolverine Tube Company Radiating device
US2089340A (en) * 1932-01-19 1937-08-10 Moore Dry Kiln Co Extended fin surface for conduits
US2656808A (en) * 1947-03-07 1953-10-27 Kramer Trenton Co Method of producing heat exchange elements
US2737370A (en) * 1949-07-09 1956-03-06 Frisch Martin Extended surface element for heat exchanger
US3190353A (en) * 1962-05-22 1965-06-22 Storfer Robert Heat transfer fin
US3829647A (en) * 1971-06-04 1974-08-13 Westinghouse Electric Corp Heat conducting fins for bus bars and other electrical conductors
JPS517579Y1 (en) * 1973-12-05 1976-03-01
GB2047399B (en) * 1979-04-20 1982-12-08 Du Pont Fabrication of finned-tube heat exchangers
US4449581A (en) * 1982-08-30 1984-05-22 Chromalloy American Corporation Heat exchanger fin element with dog-bone type pattern of corrugations
JPH02217158A (en) * 1988-10-28 1990-08-29 Showa Alum Corp Heat exchanger
US4949543A (en) * 1989-09-12 1990-08-21 Modine Manufacturing Company Tube and fin assembly for heat exchangers in power plants
JPH03291160A (en) * 1990-04-04 1991-12-20 Showa Alum Corp Heat exchanger for hot-water supply
US5111876A (en) * 1991-10-31 1992-05-12 Carrier Corporation Heat exchanger plate fin
JPH0749190A (en) * 1993-08-05 1995-02-21 Showa Alum Corp Heat exchanger manufacturing method
US5582246A (en) * 1995-02-17 1996-12-10 Heat Pipe Technology, Inc. Finned tube heat exchanger with secondary star fins and method for its production
US5501270A (en) * 1995-03-09 1996-03-26 Ford Motor Company Plate fin heat exchanger
JPH08327276A (en) * 1995-05-30 1996-12-13 Sanden Corp Multi-tube type heat exchanger
JPH1062084A (en) * 1996-08-22 1998-03-06 Nippon Light Metal Co Ltd Heat exchanger manufacturing method and heat exchanger
US6178292B1 (en) * 1997-02-06 2001-01-23 Denso Corporation Core unit of heat exchanger having electric heater
US5956846A (en) * 1997-03-21 1999-09-28 Livernois Research & Development Co. Method and apparatus for controlled atmosphere brazing of unwelded tubes
JPH10318695A (en) * 1997-05-19 1998-12-04 Zexel Corp Heat exchanger
JP3823584B2 (en) * 1999-02-15 2006-09-20 日産自動車株式会社 Heat exchanger
US6266882B1 (en) * 1999-05-20 2001-07-31 Carrier Corporation Fin collar and method of manufacturing
CA2434826C (en) * 2001-01-16 2011-03-29 Pechiney Rhenalu Brazing sheet and method
US6644394B1 (en) * 2002-06-25 2003-11-11 Brazeway, Inc. Braze alloy flow-barrier

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5396556A (en) * 1977-02-02 1978-08-23 Hitachi Ltd Cooling fin
GB2110811A (en) * 1981-11-28 1983-06-22 Salter & Co Ltd G Finned tube heat exchanger members
US5117905A (en) * 1987-08-29 1992-06-02 Sueddeutsche Kuehlerfabrik Julius Fr. Behr Gmbh & Co. Kg Heat exchanger with fins
JPH02154992A (en) * 1988-12-05 1990-06-14 Sumitomo Light Metal Ind Ltd Heat exchanger employing flat tube
JP2003161589A (en) * 2001-11-21 2003-06-06 Toyo Radiator Co Ltd Air conditioning plate fin type heat exchanger

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 002, no. 128 (M - 037) 26 October 1978 (1978-10-26) *
PATENT ABSTRACTS OF JAPAN vol. 014, no. 404 (M - 1018) 31 August 1990 (1990-08-31) *
PATENT ABSTRACTS OF JAPAN vol. 2003, no. 10 8 October 2003 (2003-10-08) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2185900A1 (en) * 2007-08-29 2010-05-19 Micro Motion, Inc. Brace bar with tabbed apertures for brazing to a flow tube

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US20050155750A1 (en) 2005-07-21
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EP1714100A1 (en) 2006-10-25
JP2007518962A (en) 2007-07-12

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