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WO2008091918A1 - Échangeur thermique et son procédé - Google Patents

Échangeur thermique et son procédé Download PDF

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Publication number
WO2008091918A1
WO2008091918A1 PCT/US2008/051747 US2008051747W WO2008091918A1 WO 2008091918 A1 WO2008091918 A1 WO 2008091918A1 US 2008051747 W US2008051747 W US 2008051747W WO 2008091918 A1 WO2008091918 A1 WO 2008091918A1
Authority
WO
WIPO (PCT)
Prior art keywords
insert
heat exchanger
tube
structural
peak
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/US2008/051747
Other languages
English (en)
Inventor
Steven P. Meshenky
Dan R. Raduenz
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 Manufacturing Co
Original Assignee
Modine Manufacturing Co
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 Modine Manufacturing Co filed Critical Modine Manufacturing Co
Priority to US12/521,892 priority Critical patent/US20100025024A1/en
Priority to BRPI0807410-0A2A priority patent/BRPI0807410A2/pt
Priority to CN2008800029356A priority patent/CN101589286B/zh
Priority to DE112008000114T priority patent/DE112008000114T5/de
Priority to US12/182,747 priority patent/US8424592B2/en
Publication of WO2008091918A1 publication Critical patent/WO2008091918A1/fr
Anticipated expiration legal-status Critical
Priority to US13/855,144 priority patent/US9395121B2/en
Ceased legal-status Critical Current

Links

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
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
    • F28D7/1684—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation the conduits having a non-circular cross-section
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
    • F02M26/29—Constructional details of the coolers, e.g. pipes, plates, ribs, insulation or materials
    • F02M26/32—Liquid-cooled heat exchangers
    • 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
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-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
    • F28F2240/00—Spacing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
    • 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
    • F28F2275/122—Fastening; Joining by methods involving deformation of the elements by crimping, caulking or clinching

Definitions

  • the present invention relates to heat exchangers and, more particularly, to an exhaust gas recirculation cooler, a method of assembling the same, and a method of operating the same.
  • the present invention provides a heat exchanger defining a flow path for a first working fluid and a flow path for a second working fluid, a tube at least partially defining one of the first and second flow paths, and a corrugated insert secured to the tube and positioned along the flow path of the first working fluid.
  • a structural deficit is provided at a location on the insert so that failures occur at that location.
  • the present invention also provides a heat exchanger having a header and a tube secured to the header.
  • a corrugated insert can be secured to a surface of the tube and can include a groove formed along at least a portion of a length of the insert and spaced apart from the surface of the tube to which the insert is secured.
  • the corrugated insert can be secured between two opposing surfaces of the tube and the groove can be formed midway along a height of the insert.
  • the present invention provides a heat exchanger having a tube and an insert supported by the tube.
  • the insert can have a corrugated shape with a peak and an adjacent valley and a groove extending along a longitudinal dimension of the insert between the peak and the valley such that structural failures occur at a preferred location between the peak and the valley.
  • the present invention also provides a method of assembling a heat exchanger including providing a heat exchanger tube and positioning an insert in the tube.
  • the method can also include the steps of connecting the insert to a surface of the tube and forming a Attorney Docket No. 022230-9049-WO
  • FIG. 1 is a perspective view of a heat exchanger according to some embodiments of the present invention.
  • Fig. 2 is a partially cut-away view of a portion of the heat exchanger shown in Fig. 1.
  • Fig. 3 is a perspective view of a portion of a tube of the heat exchanger shown in Fig. 1.
  • Fig. 4 is an exploded view of a portion of a tube and an insert of the heat exchanger shown in Fig. 1.
  • Fig. 5 is an end view of a portion of a tube and an insert of the heat exchanger shown in Fig. 1.
  • Fig. 6 is an exploded view of a tube and an insert of a heat exchanger according to another embodiment of the present invention.
  • Fig. 7 is an end view of a portion of a tube and an insert of the heat exchanger shown in Fig. 6.
  • Figs. 1-5 illustrate a heat exchanger 10 according to some embodiments of the present invention.
  • the heat exchanger 10 can operate as an exhaust gas recirculation cooler (EGRC) and can be operated with the exhaust system of a vehicle.
  • EGRC exhaust gas recirculation cooler
  • the heat exchanger 10 can be used in other (e.g., non-vehicular) applications, such as, for example, in electronics cooling, industrial equipment, building heating and air-conditioning, and the like.
  • the heat exchanger 10 of the present invention can take many forms, utilize a wide range of materials, and can be incorporated into various other systems.
  • the heat exchanger 10 can transfer heat energy from a high temperature first working fluid (e.g., exhaust gas, water, engine coolant, CO 2 , an organic refrigerant, Rl 2, R245fa, air, and the like) to a lower temperature second working fluid (e.g., exhaust gas, water, engine coolant, CO 2 , an organic refrigerant, Rl 2, R245fa, air, and the like).
  • a high temperature first working fluid e.g., exhaust gas, water, engine coolant, CO 2 , an organic refrigerant, Rl 2, R245fa, air, and the like
  • a lower temperature second working fluid e.g., exhaust gas, water, engine coolant, CO 2 , an organic refrigerant, Rl 2, R245fa, air, and the like.
  • the heat exchanger 10 can operate to transfer heat energy between three or more fluids.
  • the heat exchanger 10 can operate as a recuperator and Attorney Docket No. 022230-9049-
  • the heat exchanger 10 can transfer heat energy from a high temperature location of a heating circuit to a low temperature location of the same heating circuit.
  • the heat exchanger 10 can transfer heat energy from a working fluid traveling through a first portion of the heat transfer circuit to the same working fluid traveling through a second portion of the heat transfer circuit.
  • the heat exchanger 10 can include a first header 18 and a second header 20 positioned at respective first and second ends 22, 24 of a stack of heat exchanger tubes 26.
  • the first header 18 includes a first collecting tank 30 and the second header 20 includes a second collecting tank 32.
  • the heat exchanger 10 can include a single header 18 located at one of the first and second ends 22, 24 or at another location on the heat exchanger 10.
  • each of the tubes 26 can be secured to the first and second headers 18, 20 such that a first working fluid flowing through the heat exchanger 10 is maintained separate from a second working fluid flowing through the heat exchanger 10. More specifically, the heat exchanger 10 defines a first flow path (represented by arrows 34 in Fig. 1) for the first working fluid and a second flow path (represented by arrows 36 in Fig. 1) for a second working fluid, and the first and second flow paths 34, 36 are separated such that the first working fluid is prevented from entering the second flow path 36 and such that the second working fluid is prevented from entering the first flow path 34.
  • the tubes 26 are secured to the first and second headers 18, 20 such that the first working fluid enters the heat exchanger 10 through a first inlet aperture 40 in the first header 18, travels through the heat exchanger 10 along the first flow path 34, and is prevented from entering the second flow path 36.
  • the tubes 26 can be secured to the first and second headers 18, 20 such that the second working fluid enters the heat exchanger 10 through a second inlet aperture 42 in the second header 20, travels through the heat exchanger 10 along the second flow path 36, and is prevented from entering the first flow path 34.
  • the first flow path 34 extends through the first inlet aperture 40 in the first header 18, through the tubes 26, and out of the heat exchanger 10 through a first outlet aperture 44 in the second header 20, and the second flow path 36 extends through the second inlet aperture 42, around and between the tubes 26 (e.g., along Attorney Docket No. 022230-9049- WO
  • the tubes 26 can have other orientations and configurations and the first and second flow paths 34, 36 can be maintained separate by dividers, inserts, partitions, and the like.
  • the first flow path 34 can extend through some of the tubes 26 while the second flow path 36 can extend through other tubes 26.
  • dividers 38 can be positioned in the first and/or second headers 18, 20 to separate or at least partially separate the first and second flow paths 34, 36.
  • the dividers 38 can be contoured to closely engage the interior of the first and/or second headers 18, 20 and to prevent the first and/or second working fluids from leaking between the interior walls of the first and/or second headers 18, 20 and the outer perimeter of the dividers 38.
  • the dividers 38 can have apertures 39 sized to receive one or more of the tubes 26.
  • the first working fluid flowing along the first flow path 34 can enter the tubes 26 through apertures 39 formed in the dividers 38.
  • the dividers 38 prevent the second working fluid from entering the tubes 26.
  • the dividers 38 can also direct the second working fluid from the second inlet aperture 42 between adjacent tubes 26 and can prevent the second working fluid from flowing into the tubes 26.
  • the dividers 38 can also prevent the first working fluid from flowing between the tubes 26.
  • the heat exchanger 10 is configured as a cross-flow heat exchanger such that the first flow path 34 or a portion of the first flow path 34 is opposite to or counter to the second flow path 36 or a portion of the second flow path 36.
  • the heat exchanger 10 can have other configurations and arrangements, such as, for example, a parallel-flow or a counter-flow configuration.
  • the heat exchanger 10 is configured as a single-pass heat exchanger with the first working fluid traveling along the first flow path 34 through at least one of a number of tubes 26 and with the second working fluid traveling along the second flow path 36 between adjacent tubes 26,
  • the exchanger 10 can be configured as a multi-pass heat exchanger with the first working fluid traveling in a first pass through one or more of the tubes 26 and then traveling in a second pass through one or more different tubes 26 in a direction opposite to the flow direction of the first working fluid in the first pass.
  • the second working fluid can travel along the second flow path 36 between adjacent tubes 26.
  • the heat exchanger 10 can be configured as a multi-pass heat exchanger with the second working fluid traveling in a first pass between a first pair of adjacent tubes 26 and then traveling in a second pass between another pair of adjacent tubes 26 in a direction opposite to the flow direction of the second working fluid in the first pass.
  • the first working fluid can travel along the first flow path 34 through at least one of the tubes 26.
  • the heat exchanger 10 includes seven tubes 26, each of which has a substantially rectangular cross-sectional shape.
  • the heat exchanger 10 can include one, two, three, four, five, six, eight, or more tubes 26, each of which can have a triangular, circular, square or other polygonal, oval, or irregular cross-sectional shape.
  • reinforcing plates 52 can be added to the stack of tubes 26 to at least partially enclose the tubes 26.
  • reinforcing plates 52 can be positioned adjacent to the top and bottom of the stack of tubes 26.
  • a housing can be provided around at least some of the tubes 26. In embodiments having reinforcing plates 52 and/or a housing, the reinforcing plates 52 and/or the housing can protect the tubes 26 from the mechanical effects of temperature fluctuations.
  • the second flow path 36 or a portion of the second flow path 36 can extend across the outer surface 45 of one or more of the tubes 26.
  • a housing can be provided around the tubes 26 to prevent the second fluid from leaking out of the heat exchanger 10 between adjacent tubes 26.
  • ribs 56 can be formed along the outer surfaces 45 of the tubes 26 to at least partially define channels 58.
  • the heat exchanger 10 can include connectors 54 for supporting the heat exchanger 10 and/or for securing the heat exchanger 10 to an external structure.
  • connectors 54 can be provided on the collecting tanks 22, 23.
  • the second inlet aperture 42 and/or the second outlet aperture 46 can be positioned along the connectors 54.
  • a sealing groove or sealing rim 55 can be formed around the second inlet aperture 42 and/or the second outlet aperture 46 so that the heat exchanger 10 can be directly fastened to an external structure and so that the second working fluid does not leak out of the heat exchanger 10 around the second inlet aperture 42 and/or the second outlet aperture 46.
  • the ribs 56 of each tube 26 can be secured to an adjacent tube 26.
  • the ribs 56 of one tube 26 can be soldered, brazed, or welded to an adjacent tube 26.
  • adjacent tubes 26 can be secured together with inter-engaging fasteners, other conventional fasteners, adhesive or cohesive bonding material, by an interference fit, etc.
  • Additional elevations, recesses, or deformations 60 can also or alternatively be provided on the outer surfaces 45 of the tubes 26 to provide structural support to the heat exchanger 10, prevent the deformation or crushing of one or more tubes 26, maintain a desired spacing between adjacent tubes 26, improve heat exchange between the first and second working fluids, and/or generate turbulence along one or both of the first and second flow paths 34, 36.
  • the heat exchanger 10 can include inserts 66 to improve heat transfer between the first and second working fluids as the first and second working fluids travel along the first and second flow paths 34, 36, respectively.
  • the inserts 66 can be positioned in the tubes 26.
  • inserts 66 can be positioned between adjacent tubes 26.
  • inserts 66 can be integrally formed with the tubes 26 and can extend outwardly from the outer surfaces 45 of the tubes 26.
  • an insert 66 is supported in each of the tubes 26, and extends along the entire length or substantially the entire length of each of the tubes 26 between opposite ends 68 of the tubes 26.
  • an insert 26 can be Attorney Docket No. 022230-9049-WO
  • the insert(s) 66 can extend substantially the entire length of the tube(s) 26 between opposite ends 68 of the tube(s) 26, or alternatively, the insert 66 can extend through the tube(s) 26 along substantially less than the entire length of the tube(s) 26. In still other embodiments, two or more inserts 66 can be supported by or in each tube 26.
  • the inserts 66 can be secured to the tubes 26.
  • the inserts 66 are soldered, brazed, or welded to the tubes 26.
  • the inserts 26 can be connected to the tubes 26 in another manner, such as, for example, by an interference fit, adhesive or cohesive bonding material, fasteners, etc.
  • the ends 68 of the tubes 26 can be press-fit into one or both of the first and second headers 18, 20.
  • the ends 68 of the tubes 26 and the inserts 66 supported in the tubes 26 or between the tubes 26 can be at least partially deformed when the tubes 26 and/or the inserts 66 are press-fit into the first and/or second headers 18, 20.
  • the tubes 26 and/or the inserts 66 are pinched and maintained in compression to secure the tubes 26 and/or the inserts 66 in a desired orientation and to prevent leaking.
  • the inserts 66 are formed from folded sheets of metal.
  • the inserts 66 can be cast or molded in a desired shape and can be formed from other materials (e.g., aluminum, iron, and other metals, composite material, and the like).
  • the inserts 66 can be cut or machined to shape in any manner, can be extruded or pressed, can be manufactured in any combination of such operations, and the like.
  • the inserts 66 can be corrugated and can have a series of alternating peaks 72 and valleys 74. As also shown in Figs. 2, 4, and 5, the peaks 72 and valleys 74 can engage respective upper and lower interior sides of a tube 26, and flanks 76 can extend (e.g., in a generally vertical direction in the illustrated embodiment of Figs. 2, 4, and 5) between adjacent peaks 72 and valleys 74.
  • flanks 76 can extend in a generally linear direction between opposite interior sides (e.g., between upper and lower opposing sides in the illustrated Attorney Docket No. 022230-9049-WO
  • the flanks 76 can extend in a non-linear direction between the opposite interior sides (e.g., between upper and lower sides in the illustrated embodiment of Figs. 1-5) of the tubes 26.
  • the peaks 72 and valleys 74 extend along a longitudinal dimension of the insert 66 and the tube 26.
  • the insert 66 may be in contact with only one side of the tube 26.
  • the flanks 76 can have a generally wavy cross-sectional shape.
  • the inserts 66 can have other shapes and configurations.
  • the inserts 66 can have pointed, squared, or irregularly shaped peaks 72 and/or valleys 74.
  • the inserts 66 can have a saw-toothed or sinusoidal profile.
  • the inserts 66 operate as springs to absorb or at least partially absorb vibrations and/or to absorb expansions and contractions of the inserts 66 caused by fluctuating inlet temperatures of the first and/or second working fluids.
  • the elasticity of the wavy inserts 66 prevents and/or reduces cracking and breaking of the inserts 66.
  • the elasticity of the wavy inserts 66 prevents and/or reduces cracking and breaking of connections (e.g., solder points, braze points, weld points, etc.) between the peaks 72 and valleys 74 of the inserts 66 and the interior sides of the tubes 26.
  • the wavy cross-section of the insert 66 may extend only a portion of a length L of the insert 66.
  • the wavy cross-section may be provided at the ends of the insert 66 where the tube 26 is connected to a header 18, 20, or alternatively where the tube 26 and/or insert 66 experiences the most thermal and mechanical stress.
  • At least one structural deficiency 78 can be formed along at least one of the flanks 76 of an insert 66.
  • the structural deficiency 78 can include a groove extending along the entire length L or substantially the entire length L of a flank 76 between opposite ends 80 of the insert 66.
  • the groove 78 can extend along less than the entire length L of the flank 76 (e.g., a groove 78 can be staggered along the length L of a flank 76).
  • the structural deficiency 78 may extend only a portion of a length L of the insert 66.
  • a groove 78 may be provided at the ends of the insert 66 where the tube 26 is Attorney Docket No. 022230-9049-WO
  • a groove 78 or other structural deficiency 78 can be formed in opposing sides of the insert 66 to further weaken the insert at a particular location on the flank 76.
  • Structural deficiencies 78 can take various forms and shapes, and can be provided on the inserts 66 in various manners including scoring, stamping, etching, and the like.
  • groove 78 has a cross-section that is V-shaped, U-shaped, rectangular, or irregular. Structural deficiencies 78 can be formed in the insert 66 prior to or after folding or cutting of the insert 66.
  • the grooves 78 can be located midway along the height H of the flanks 76 so that the grooves 78 are spaced a maximum distance from the peaks 72, valleys 74, and corresponding connection points of the inserts 66.
  • structural failures i.e., cracking, buckling, etc. of the insert 66
  • connection points e.g., solder points, braze points, weld points, etc.
  • any cracks or failures occur at or near a midpoint of the height H of the flanks 76 and at a maximum distance from the connection points (e.g., solder points, braze points, weld points, etc.) between the peaks 72 and valleys 74 of the inserts 66 and the interior sides of the tubes 26.
  • connection points e.g., solder points, braze points, weld points, etc.
  • the height Ii of the flanks 76 is approximately Attorney Docket No. 022230-9049-WO
  • the peaks 72 and valleys 74 of the inserts 66 remain connected to the interior sides (e.g., the upper and lower interior sides in the illustrated embodiment of Figs. 1-5) of the tubes 26. In this manner, the inserts 66 remain connected to the tubes 26 and continue to provide a maximum structural support to the tubes 26, even after cracking or failure of the flanks 76.
  • the stiffness of an insert 66 can be calculated using the equation 1/12 * (insert thickness T) * (insert height H) 3 . Accordingly, in embodiments, such as the illustrated embodiment of Figs.
  • each of the flanks 76 can maintain a maximum possible stiffness, even after failure or cracking.
  • FIGs. 6 and 7 illustrate an alternate embodiment of a heat exchanger 210 according to the present invention.
  • the heat exchanger 210 shown in Figs. 6 and 7 is similar in many ways to the illustrated embodiments of Figs. 1-5 described above. Accordingly, with the exception of mutually inconsistent features and elements between the embodiment of Figs. 6 and 7 and the embodiments of Figs. 1-5, reference is hereby made to the description above accompanying the embodiments of Figs. 1-5 for a more complete description of the features and elements (and the alternatives to the features and elements) of the embodiment of Figs. 6 and 7.
  • Features and elements in the embodiment of Figs. 6 and 7 corresponding to features and elements in the embodiments of Figs. 1-5 are numbered in the 200 series.
  • the tubes 226 of the heat exchanger 210 support inserts 266 having a series of alternating peaks 272 and valleys 274. As also shown in Figs. 6 and 7, the peaks 272 and valleys 274 can engage respective upper and lower interior sides of a tube 226. Flanks 276 can extend in a generally vertical direction in the illustrated embodiment of Figs. 6 and 7 between adjacent peaks 272 and valleys 274. Attorney Docket No. 022230-9049-WO
  • the flanks 276 can extend in a generally linear direction between upper and lower interior sides of the tubes 226 and can be substantially perpendicular to the upper and lower interior sides of the tubes 226.
  • the inserts 266 can have other shapes and configurations.
  • Grooves 278 can be formed along at least some of the flanks 276 of the inserts 266.
  • the grooves 278 can take various forms and shapes, and can be provided on the inserts 266 in various manners including scoring, stamping, bending, and the like. As shown in Figs. 6 and 7, the grooves 278 can be positioned at locations on the inserts 266 where cracks and/or failures are anticipated to cause the least damage to the structural integrity of the inserts 266 and/or where cracking or failures are anticipated to have a minimal affect on the heat transfer characteristics of the heat exchanger 210.
  • the grooves 278 can be located midway along the height //of the flanks 276 so that the grooves 278 are spaced a maximum distance from the peaks 272 and valleys 274 of the inserts 266 and so that the grooves 278 are spaced a maximum distance from the connection points (e.g., solder points, braze points, weld points, etc.) between the peaks 272 and valleys 274 of the inserts 266 and the interior sides of the tubes 226.
  • connection points e.g., solder points, braze points, weld points, etc.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

Échangeur thermique comprenant une première voie d'écoulement destinée à un premier fluide actif, une seconde voie d'écoulement destinée à un second fluide actif, un tube formant au moins partiellement une desdites première et seconde voies, et un élément à insérer, ondulé, fixé au tube et placé le long de la première voie d'écoulement. Un déficit structurel se situe à un emplacement sur l'élément à insérer, de telle manière que des défauts structurels se produisent au niveau de l'emplacement plutôt qu'à d'autres emplacements sur l'élément à insérer.
PCT/US2008/051747 2007-01-23 2008-01-23 Échangeur thermique et son procédé Ceased WO2008091918A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US12/521,892 US20100025024A1 (en) 2007-01-23 2008-01-23 Heat exchanger and method
BRPI0807410-0A2A BRPI0807410A2 (pt) 2007-01-23 2008-01-23 Trocador de calor e método
CN2008800029356A CN101589286B (zh) 2007-01-23 2008-01-23 热交换器和方法
DE112008000114T DE112008000114T5 (de) 2007-01-23 2008-01-23 Wärmetauscher und Verfahren
US12/182,747 US8424592B2 (en) 2007-01-23 2008-07-30 Heat exchanger having convoluted fin end and method of assembling the same
US13/855,144 US9395121B2 (en) 2007-01-23 2013-04-02 Heat exchanger having convoluted fin end and method of assembling the same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US88191907P 2007-01-23 2007-01-23
US60/881,919 2007-01-23

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US12/061,191 Continuation-In-Part US20090250201A1 (en) 2007-01-23 2008-04-02 Heat exchanger having a contoured insert and method of assembling the same
US12/182,747 Continuation-In-Part US8424592B2 (en) 2007-01-23 2008-07-30 Heat exchanger having convoluted fin end and method of assembling the same

Publications (1)

Publication Number Publication Date
WO2008091918A1 true WO2008091918A1 (fr) 2008-07-31

Family

ID=39644864

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/051747 Ceased WO2008091918A1 (fr) 2007-01-23 2008-01-23 Échangeur thermique et son procédé

Country Status (5)

Country Link
US (1) US20100025024A1 (fr)
CN (1) CN101589286B (fr)
BR (1) BRPI0807410A2 (fr)
DE (1) DE112008000114T5 (fr)
WO (1) WO2008091918A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010015433A1 (fr) * 2008-08-02 2010-02-11 Pierburg Gmbh Unité de transfert de chaleur pour un moteur à combustion interne
FR2969271A1 (fr) * 2010-12-21 2012-06-22 Valeo Systemes Thermiques Boitier d'echangeur de chaleur, echangeur de chaleur muni d'un tel boitier et module d'admission equipe d'un tel echangeur
FR2969272A1 (fr) * 2010-12-21 2012-06-22 Valeo Systemes Thermiques Boitier d"echangeur de chaleur, echangeur de chaleur muni d'un tel boitier et module d'admission equipe d'un tel echangeur
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US20100025024A1 (en) 2010-02-04
BRPI0807410A2 (pt) 2014-05-27
DE112008000114T5 (de) 2010-02-25

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