WO2020232261A1 - Échangeur de chaleur à plaques - Google Patents

Échangeur de chaleur à plaques Download PDF

Info

Publication number
WO2020232261A1
WO2020232261A1 PCT/US2020/032918 US2020032918W WO2020232261A1 WO 2020232261 A1 WO2020232261 A1 WO 2020232261A1 US 2020032918 W US2020032918 W US 2020032918W WO 2020232261 A1 WO2020232261 A1 WO 2020232261A1
Authority
WO
WIPO (PCT)
Prior art keywords
plate
heat exchanger
spacers
pairs
plate heat
Prior art date
Application number
PCT/US2020/032918
Other languages
English (en)
Inventor
Ewgeni Döring
Original Assignee
Modine Manufacturing Company
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 Company filed Critical Modine Manufacturing Company
Publication of WO2020232261A1 publication Critical patent/WO2020232261A1/fr

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
    • 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
    • F28D9/0043—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 the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/025—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being corrugated, plate-like elements
    • F28F3/027—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being corrugated, plate-like elements with openings, e.g. louvered corrugated fins; Assemblies of corrugated strips
    • 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
    • F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
    • F28F3/042—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element
    • F28F3/044—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element the deformations being pontual, e.g. dimples
    • 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
    • F28F3/06—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being attachable to the element
    • 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
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
    • F28D2021/0089—Oil coolers
    • 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
    • F28F21/082—Heat exchange elements made from metals or metal alloys from steel or ferrous alloys
    • F28F21/083—Heat exchange elements made from metals or metal alloys from steel or ferrous alloys from stainless steel
    • 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
    • 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
    • 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
    • F28F21/086—Heat exchange elements made from metals or metal alloys from titanium or titanium 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
    • F28F2220/00—Closure means, e.g. end caps on header boxes or plugs on conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2225/00—Reinforcing means
    • F28F2225/04—Reinforcing means for conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2225/00—Reinforcing means
    • F28F2225/08—Reinforcing means for header boxes
    • 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
    • F28F2265/16—Safety or protection arrangements; Arrangements for preventing malfunction for preventing leakage
    • 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
    • F28F2275/20—Fastening; Joining with threaded elements
    • F28F2275/205—Fastening; Joining with threaded elements with of tie-rods
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2280/00—Mounting arrangements; Arrangements for facilitating assembling or disassembling of heat exchanger parts
    • F28F2280/04—Means for preventing wrong assembling of parts
    • 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
    • F28F9/0246—Arrangements for connecting header boxes with flow lines

Definitions

  • Heat exchanger for oil cooling and the like are frequently constructed as a stack of plate pairs. Such a heat exchanger is often mounted an engine and enclosed within a bath of liquid coolant that flows over the outer surfaces of the heat exchanger. Another fluid such as engine oil is routed through the plate heat exchanger and is cooled by the liquid coolant.
  • a plate heat exchanger is constructed of a stack of plate pairs, each pair including a first plate that is joined to a second plate to define an enclosed flow volume for a first fluid to pass through. Adjacent plate pairs are spaced apart to define fluid passages for a second fluid to pass over the outer surfaces of the plate pairs. Spaces are arranged between the plate pairs, and together with the plates of the plate pairs the spacers define a continuous structural column extending along the height of the stack. An aperture extends through the structural column to receive a fastener therethrough.
  • the spacers can be of a variety of shapes, including but not limited to an annular shape. Some of the plates of the plate pairs can be provided with a recess to receive the spacers therein so that the spacers can be located in the proper position during the assembly of the plate heat exchanger.
  • the recesses can be cylindrical, or can be of some other shape that is appropriate to match the outer profile of the spacers.
  • Each of the spacers can be spaced apart from another one of the spacers by a distance that is equal to the sum of the thickness of the two plates that form a plate pair.
  • the plate heat exchanger can include one or more flange plates that are joined to a terminal plate pair in the stack at one end.
  • the aperture that extends through the structural column can continue through the flange plate.
  • the components of the plate heat exchanger can be joined together by brazing. This can be accomplished by forming the components out of one or more brazeable metals, such as aluminum, copper, stainless steel, titanium, or other metals. At least some parts of the plate heat exchanger can also or alternatively be joined together by other operations, such as welding.
  • FIG. 1 is a side view of a plate heat exchanger according to an
  • FIG. 2 is a plan view of the plate heat exchanger of FIG. 1.
  • FIG. 3 is an exploded perspective view of a plate pair used in the plate heat exchanger of FIG. 1.
  • FIG. 4 is a partial perspective view of a style of turbulator that can be used within the plate pair of FIG. 3 according to some embodiments of the invention.
  • FIG. 5 is a partial sectional view along the lines V-V of FIG. 2.
  • FIG. 6 is a perspective view of a spacer used in the plate heat exchanger of
  • FIG. 1. DETAILED DESCRIPTION
  • the terms“mounted,”“connected,” “supported,” and“coupled” and variations thereof are used broadly and encompass both direct and indirect mountings, connections, supports, and couplings. Further, “connected” and“coupled” are not restricted to physical or mechanical connections or couplings.
  • the plate heat exchanger 1 is constructed as a stack 2 of plate pairs 3, and can be used to exchange heat between a first fluid that passes through internal flow volumes 6 that are enclosed within each one of the plate pairs 3, and a second fluid that passes through gaps between adjacent plate pairs 3 of the stack 2.
  • the plate heat exchanger 1 can, by way of example, be used to exchange heat between a flow of oil (such as engine oil, transmission oil, or the like) and a flow of liquid coolant.
  • the flow of oil can function as the first fluid, which passes through the interior volumes of the plate pairs 3, and the flow of liquid coolant can function as the second fluid, passing over the outer surfaces of the plate pairs to cool the oil.
  • the plate heat exchanger will then typically be installed into a cavity through which the flow of liquid coolant is directed.
  • the plate heat exchanger 1 is preferably constructed of a brazeable metal material, so that the various parts of the heat exchanger can be joined together to form a monolithic structure.
  • the choice of metal can vary with the intended application, but can include aluminum, copper, stainless steel, titanium, and other metals.
  • each plate pair 3 includes a first plate 4 and a second plate 5 that are joined together to create the flow volume 6 within the plate pair 3.
  • a turbulator 17 can optionally be placed within the flow volume 6 in order to provide enhanced convective heat transfer to or from the fluid passing through the flow volume 6.
  • the turbulator 6 can be formed as a porous metal structure, such as the lanced-and-offset fin plate shown in detail in FIG. 4. Such a structure provides for efficient heat transfer while simultaneously providing increased structural support against internal pressurization of the plate pair 3 by the fluid passing through it, as the crests and troughs of the turbulator are joined to the inwardly facing surfaces of plates 4, 5.
  • the outer profile of the turbulator 17 can be cut or stamped to match the shape of the plate pair 3.
  • Outwardly facing dimples 15 are formed into the plates 4 and 5, and are arranged so that the dimples of adjoining plate pairs 3 abut one another.
  • the dimples 15 space apart adjacent plate pairs 3 to form the flow passages between the adjacent plate pairs 3 for the second fluid to pass through.
  • the spacing of the dimples 15 can be adjusted in order to turbulate the flow of the second fluid as desired, as well as to provide the requisite amount of structural support for the plate pairs 3.
  • Each of the plates 4, 5 is provided with an upturned edge 19 along its outer periphery.
  • the upturned edges 19 are directed towards the other plate in the pair 3, and the edges 19 of the plates 4, 5 in each plate pair 3 cooperate to close the outer periphery of the plate pair 3.
  • the final forming of the upturned edges 19 can be performed after the assembly of the plates to form the pair.
  • Inlet and outlet manifolds 16 extend through the height of the stack 3 to route the first fluid to and from the flow volumes 6 of the plate pairs 3.
  • the manifolds 16 are at least partially formed by flanged openings 23 in the plates 4, 5.
  • the outwardly extending flange surrounding an opening 23 of a plate 4 joins to the outwardly extending flange surrounding an aligned opening 23 of a plate 5 of the adjacent plate pair 3 in order to form the continuous manifold 16.
  • Corresponding openings 21 are cut or stamped into the turbulator 17, if present, in order to allow the fluid to pass unobstructed through the manifold 16.
  • An end cap 18 is provided at one end of each manifold 16 in order to close off that end of the manifold 16.
  • the plate heat exchanger 1 can be mounted to another component (for example, an engine) so as to receive a flow of the first fluid directly into the inlet manifold and so as to deliver the flow of the first fluid out of the outlet manifold after that flow of first fluid has passed through the internal volumes 6 of the plate pairs 3.
  • Flange plates 11 are provided at one end of the stack 2, disposed against a terminal one of the plate pairs 3, in order facilitate mounting the plate heat exchanger 1 in a sealing fashion.
  • the manifolds 16 extend through the flange plates 11, so that a direct fluid coupling of the plate heat exchanger 1 to the flow circuit of the first fluid is possible.
  • apertures 9 that extend through the stack 2 are provided.
  • fasteners 10 (shown generally by dotted lines in the section view of FIG. 5) pass through the apertures 9 and are secured into the mounting structure, thereby applying a clamping force to the plate heat exchanger 1.
  • the apertures 9 are arranged in close proximity to the manifolds 16, and also extend through the flange plates 11 in order to securely fasten the flange plates 11 to the mounting surface. It should be understood, however, that in some embodiments the secure mounting may be achieved without the presence of flange plates 11.
  • each one of the apertures 9 passes through a continuous structural column 8 that extends along the height of the stack 2.
  • the structural column 8 provides a rigid and generally incompressible column through which the mounting force can be applied.
  • Each continuous structural column 8 is at least partially defined by spacers that are arranged between the plate pairs 3.
  • the apertures 9 are defined by a central void within the spacers 7, aligned holes 22 in each of the plates 4 and 5, and aligned holes 20 that are cut or stamped into the optional turbulators 17.
  • the holes 20 in the first plate 4 are arranged at the center of recesses 12 that are formed within the first plate 4.
  • the recesses 12 are shaped to match the outer profile of the spacers 7, so that each one of the spacers 7 can be received within such a recess 12 in order to provide proper location of the spacers 7 during assembly of the plate heat exchanger 1.
  • the spacers 7 are annular in shape, and the recesses 12 are therefore cylindrical in shape. It should be understood, however, that other shapes for the spacers and recesses may be equally suitable, such as for example square, hexagonal, octagonal, etc.
  • the spacers 7 that are arranged between adjacent plate pairs 3 have one surface that is joined to an outwardly facing surface of a first plate 4 of one plate pair 3, and a second surface that is joined to an outwardly facing surface of a second plate 5 of another plate pair 3.
  • the spacer 7 bridges the gap between the two adjacent plate pairs 3 and provides a rigid connection between them at the location where the fastening force is applied.
  • the recess 12 that is formed into the first plate 4 extends over the height of the internal flow volume 6, so that the inwardly facing surface of the plate 4 in the region of the recess 12 directly abuts and is joined to the inwardly facing surface of the plate 5 of that same plate pair 3.
  • each of the spacers 7 is spaced apart from the adjacent spacer 7 on either side by a distance equal to the sum of the plate 4 thickness and the plate 5 thickness.
  • the material for the plates 4, 5 are compressed between these adjacent spacers 7, resulting in a very rigid and incompressible column 8.
  • an additional spacer 7 is arranged at the end of the stack 2 opposite the flange plates 11, and is disposed within the recess 12 of the terminal plate pair 3 at that end.
  • the additional spacer 7 provides a rigid end against which the fastener 10 can provide the clamping force.
  • the plate pairs 3, the spacers 7, and the flange plate 11 are all joined together in a brazing operation.
  • a compressive load is applied to the assembled parts in order to ensure sufficient contact for the formation of strong braze joints. This can lead to settling of the assembled parts.
  • the continuous structural column 8 being formed by the rigid spacers 7 and the flat surfaces of the plates 4 and 5, will not compress during the brazing operating. The height of the structural column 8 can thereby be precisely maintained.
  • a total of four structural columns 8 and associated apertures 9 are provided.
  • Two of the structural columns 8 are provided adjacent to each of the manifolds 16, with the manifold 16 arranged along a line extending between the two continuous structural columns 8 and equidistant from each structural column 8. Such an arrangement can ensure that the end of the manifold 16 is securely fastened in a leak-free manner to the mounting structure.

Landscapes

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

Abstract

L'invention concerne un échangeur de chaleur à plaques constitué d'une pile de paires de plaques, chaque paire comprenant une première plaque reliée à une seconde plaque afin de définir un volume d'écoulement renfermé apte à être traversé par un premier fluide. Les paires de plaques adjacentes sont espacées afin de définir des passages de fluide permettant le passage d'un second fluide sur les surfaces externes des paires de plaques. Des espaces sont agencés entre les paires de plaques, et, conjointement avec les plaques des paires de plaques, les éléments d'espacement définissent une colonne structurelle continue s'étendant le long de la hauteur de la pile. Une ouverture s'étend à travers la colonne structurelle afin de recevoir un élément de fixation à travers cette dernière.
PCT/US2020/032918 2019-05-14 2020-05-14 Échangeur de chaleur à plaques WO2020232261A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201962847660P 2019-05-14 2019-05-14
US62/847,660 2019-05-14

Publications (1)

Publication Number Publication Date
WO2020232261A1 true WO2020232261A1 (fr) 2020-11-19

Family

ID=73289297

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2020/032918 WO2020232261A1 (fr) 2019-05-14 2020-05-14 Échangeur de chaleur à plaques

Country Status (1)

Country Link
WO (1) WO2020232261A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4815532A (en) * 1986-02-28 1989-03-28 Showa Aluminum Kabushiki Kaisha Stack type heat exchanger
US4815534A (en) * 1987-09-21 1989-03-28 Itt Standard, Itt Corporation Plate type heat exchanger
US5184673A (en) * 1989-04-28 1993-02-09 Torell Ab Plate heat exchanger and method for its manufacture
US20030121649A1 (en) * 2001-12-27 2003-07-03 Seiler Thomas F. Heat exchanger with internal slotted manifold
US20060219394A1 (en) * 2005-04-01 2006-10-05 Martin Michael A Stacked-tube heat exchanger
US7237604B2 (en) * 2002-10-10 2007-07-03 Behr Gmbh & Co. Kg Stacked plate heat exchanger
US20090087355A1 (en) * 2005-05-13 2009-04-02 Robert Ashe Variable plate heat exchangers

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4815532A (en) * 1986-02-28 1989-03-28 Showa Aluminum Kabushiki Kaisha Stack type heat exchanger
US4815534A (en) * 1987-09-21 1989-03-28 Itt Standard, Itt Corporation Plate type heat exchanger
US5184673A (en) * 1989-04-28 1993-02-09 Torell Ab Plate heat exchanger and method for its manufacture
US20030121649A1 (en) * 2001-12-27 2003-07-03 Seiler Thomas F. Heat exchanger with internal slotted manifold
US7237604B2 (en) * 2002-10-10 2007-07-03 Behr Gmbh & Co. Kg Stacked plate heat exchanger
US20060219394A1 (en) * 2005-04-01 2006-10-05 Martin Michael A Stacked-tube heat exchanger
US20090087355A1 (en) * 2005-05-13 2009-04-02 Robert Ashe Variable plate heat exchangers

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