US20130292101A1 - Fluid/Fluid Heat Exchanger - Google Patents

Fluid/Fluid Heat Exchanger Download PDF

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Publication number
US20130292101A1
US20130292101A1 US13/884,392 US201113884392A US2013292101A1 US 20130292101 A1 US20130292101 A1 US 20130292101A1 US 201113884392 A US201113884392 A US 201113884392A US 2013292101 A1 US2013292101 A1 US 2013292101A1
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United States
Prior art keywords
fluid
heat exchanger
inlet
outlet
plates
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Abandoned
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US13/884,392
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English (en)
Inventor
Christophe DENOUAL
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Valeo Systemes Thermiques SAS
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Valeo Systemes Thermiques SAS
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Assigned to VALEO SYSTEMES THERMIQUES reassignment VALEO SYSTEMES THERMIQUES ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DENOUAL, CHRISTOPHE
Publication of US20130292101A1 publication Critical patent/US20130292101A1/en
Abandoned legal-status Critical Current

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    • 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
    • F28D9/005—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 the plates having openings therein for both heat-exchange media
    • 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
    • F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
    • 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
    • F28D9/0056—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 with U-flow or serpentine-flow inside conduits; with centrally arranged openings on the plates
    • 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
    • F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
    • 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
    • F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
    • 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

Definitions

  • the invention is in the field of heating, ventilation and/or air-conditioning systems fitted to motor vehicles.
  • the subject of the invention is a heat exchanger incorporated into an air-conditioning loop and/or into a secondary loop of such a heating, ventilation and/or air-conditioning system.
  • Another subject of the invention is an air-conditioning loop equipped with such a heat exchanger.
  • a heat exchanger comprises a core bundle of tubes which is made up of a stack of first tubes for the circulation of a first fluid. Between two adjacent first tubes there is formed a passage for the circulation of a second fluid.
  • Such a heat exchanger is provided with inlet and outlet orifices for the first fluid so that the first fluid can circulate through the heat exchanger.
  • the heat exchanger is also provided with inlet and outlet orifices for the second fluid so that the second fluid can circulate through the heat exchanger.
  • the inlet and outlet orifices for the first fluid and for the second fluid are arranged on an end face of the heat exchanger. They are generally arranged near respective corners of the end face.
  • a heat exchanger is notably known from document FR 2 891 615.
  • the inlet and outlet for one and the same fluid are spaced apart. It is therefore necessary to fit a manifold assembly so that the heat exchanger can be connected to the air-conditioning loop and/or to the secondary loop of the heating, ventilation and/or air-conditioning system. This increases the overall size and detracts from the compactness of the heating, ventilation and/or air-conditioning system.
  • heat exchangers of the prior art have inlet and outlet orifices for one and the same fluid which are spaced apart by a sizeable distance.
  • Such positioning of the inlet and outlet orifices for the fluids places restrictions on how the heat exchanger can be incorporated into an air-conditioning system fitted to a motor vehicle, particularly into an air-conditioning loop through which a refrigerant, such as those known by the designation R744, R134a or the like, circulates, or into a secondary loop through which a coolant, such as a mixture of water and glycol or the like, circulates.
  • a refrigerant such as those known by the designation R744, R134a or the like
  • Such a heat exchanger for transferring heat between a first fluid and a second fluid comprises a stack of plates comprising a last plate and a penultimate plate jointly delimiting an end chamber, the last plate being provided with at least one inlet for the second fluid and one outlet for the second fluid, the stack of plates defining an inlet passage for the second fluid and an outlet passage for the second fluid.
  • the end chamber houses a channeling means comprising an inlet circulation canal for channeling the second fluid between the inlet for the second fluid and the inlet passage for the second fluid, and an outlet circulation canal for channeling the second fluid between the outlet for the second fluid and the outlet passage for the second fluid.
  • the channeling means consists of at least one boss formed on the last plate and/or the penultimate plate of the stack of plates.
  • the channeling means consists of an insert housed in the end chamber.
  • the insert is formed of at least one blade.
  • the blade comprises a base wall and a contour which are connected to one another by a lateral wall.
  • the base wall is in contact with the penultimate plate of the stack of plates and the contour is in contact with the last plate of the stack of plates.
  • the inlet circulation canal and the outlet circulation canal for the second fluid are delimited by the insert and the last plate.
  • the insert is formed by two blades joined together.
  • the base wall of one of the blades is in contact with the penultimate plate of the stack of plates
  • the base wall of the other of the blades is in contact with the last plate of the stack of plates and the respective contours of the blades is in contact with one another.
  • the insert is made up of two separate distribution compartments.
  • the two distribution compartments are identical.
  • the insert consists of a distribution device, formed as a single piece, comprising two distribution chambers.
  • the two distribution chambers are arranged with local symmetry with respect to one another.
  • the inlet circulation canal and the outlet circulation canal for the second fluid are orthogonal to the inlet passage for the second fluid and to the outlet passage for the second fluid.
  • the inlet for the second fluid and the outlet for the second fluid are arranged in a central zone of the last plate of the stack of plates.
  • An air-conditioning loop comprises a heat exchanger as defined hereinabove.
  • the air-conditioning loop comprises a connecting element comprising an intake opening and a discharge opening for the second fluid and a major axis passing through the centers of the intake opening and of the discharge opening.
  • the major axis forms an angle of between 0° and 90° with a first median axis of the last plate of the stack of plates.
  • FIGS. 1 and 2 are schematic views of heating, ventilation and/or air-conditioning systems incorporating a heat exchanger according to the present invention
  • FIG. 3 is a perspective view of a heat exchanger according to the present invention.
  • FIG. 4 is a partially exploded view of the heat exchanger of FIG. 3 .
  • FIG. 5 is an exploded view of the heat exchanger of FIGS. 3 and 4 .
  • FIGS. 6 and 7 are partial schematic views of respective embodiment variants of the heat exchanger depicted in FIG. 3 .
  • FIGS. 8 a and 8 b are schematic views of two embodiments of an insert according to the present invention.
  • FIGS. 9 a to 9 c are schematic views of a last plate of the heat exchanger according to respective variants regarding integration into an air-conditioning loop according to the present invention.
  • FIGS. 1 and 2 are schematic views of a heating, ventilation and/or air-conditioning system 1 incorporating a heat exchanger according to the present invention.
  • the heating, ventilation and/or air-conditioning system 1 shown in FIGS. 1 and 2 is designed to be fitted to a motor vehicle in order to alter the aerothermal parameters of an interior air flow 8 intended to be distributed inside a motor vehicle interior.
  • the heating, ventilation and/or air-conditioning system 1 comprises an air-conditioning loop 2 through which there circulates a refrigerant, such as one of the refrigerants known by the designation R744, R134a or the like.
  • the air-conditioning loop 2 comprises a compressor 3 , able to compress the refrigerant, a first heat exchanger 4 , notably an air/refrigerant heat exchanger 4 , able to operate as a condenser 4 and through which a flow of external air passes, an expansion member 5 , able to expand the refrigerant, and an accumulator 6 , able to create a refrigerant storage zone and prevent refrigerant in the liquid state from being admitted to the compressor 3 .
  • a compressor 3 able to compress the refrigerant
  • a first heat exchanger 4 notably an air/refrigerant heat exchanger 4
  • an expansion member 5 able to expand the refrigerant
  • an accumulator 6 able to create a refrigerant storage zone and prevent refrigerant in the liquid state from being admitted to the compressor 3 .
  • FIG. 1 illustrates a first embodiment variant of the heating, ventilation and/or air-conditioning system 1 .
  • the air-conditioning loop 2 comprises a second heat exchanger 7 able to operate as an evaporator 7 , through which the interior air flow 8 passes.
  • the interior air flow 8 is able to be cooled down and/or dehumidified before being diffused within the vehicle interior.
  • the air-conditioning loop 2 also comprises an internal heat exchanger 9 designed to allow transfer of heat between the refrigerant present in a high-pressure circulation canal 10 of the internal heat exchanger 9 and the refrigerant present in a low-pressure circulation canal 11 of the internal heat exchanger 9 .
  • the high-pressure circulation canal 10 extends between a high-pressure inlet 12 and a high-pressure outlet 13 of the internal heat exchanger 9 .
  • the low-pressure circulation canal 11 extends between a low-pressure inlet 14 and a low-pressure outlet 15 of the internal heat exchanger 9 .
  • the refrigerant circulates successively through the compressor 3 , the first heat exchanger 4 , the high-pressure circulation canal 10 of the internal heat exchanger 9 , the expansion member 5 , the second heat exchanger 7 , the accumulator 6 , the low-pressure circulation canal 11 of the internal heat exchanger 9 and the compressor 3 .
  • FIG. 2 illustrates a second embodiment variant of the heating, ventilation and/or air-conditioning system 1 .
  • the heating, ventilation and/or air-conditioning system 1 comprises a refrigerant/coolant heat exchanger 17 designed to allow a transfer of heat between the refrigerant circulating through the air-conditioning loop 2 and a coolant circulating through a secondary loop 18 .
  • the coolant is, for example, made up of a mixture of water and glycol.
  • the refrigerant/coolant heat exchanger 17 is arranged in the air-conditioning loop 2 and in the secondary loop 18 .
  • the refrigerant/coolant heat exchanger 17 comprises a refrigerant circulation canal 19 which extends between a refrigerant inlet 20 and a refrigerant outlet 21 .
  • the refrigerant/coolant heat exchanger 17 also comprises a coolant circulation canal 22 which extends between a coolant inlet 23 and a coolant outlet 24 .
  • the secondary loop 18 comprises a pump 25 intended to force the circulation of the coolant, and a third heat exchanger 26 , or unit heater 26 , through which the interior air flow 8 passes before being distributed to the motor vehicle interior.
  • the coolant circulates successively through the pump 25 , the refrigerant/coolant heat exchanger 17 , the coolant circulation canal 22 and then through the third heat exchanger 26 and the pump 25 .
  • the refrigerant circulates, inside the air-conditioning loop 2 in the direction 16 of circulation of the refrigerant, successively through the compressor 3 , the first heat exchanger 4 , the expansion member 5 , the refrigerant circulation canal 19 , the accumulator 6 and the compressor 3 .
  • the refrigerant/coolant heat exchanger 17 can be positioned at other points in the air-conditioning loop 2 .
  • the heating, ventilation and/or air-conditioning system 1 comprises an internal heat exchanger 9 , in a configuration as described in FIG. 1 , and a refrigerant/coolant heat exchanger 17 , in a configuration as described in FIG. 2 .
  • FIG. 3 is a perspective view of the exchanger of a heat exchanger 110 according to the present invention.
  • the heat exchanger 100 is able indifferently to act as an internal heat exchanger 9 , in the configuration illustrated in FIG. 1 , or as a refrigerant/coolant heat exchanger 17 , in the configuration illustrated in FIG. 2 .
  • the heat exchanger 100 is able to allow a transfer of heat between a first fluid, such as a low-pressure or high-pressure refrigerant, and a second fluid, such as the low-pressure or high-pressure refrigerant or the coolant.
  • a first fluid such as a low-pressure or high-pressure refrigerant
  • a second fluid such as the low-pressure or high-pressure refrigerant or the coolant.
  • the heat exchanger 100 comprises a circulation canal for the first fluid 110 which extends between an inlet for the first fluid 111 and an outlet for the first fluid 112 .
  • the heat exchanger 100 also comprises a circulation canal for the second fluid 120 which extends between an inlet for the second fluid 121 and an outlet for the second fluid 122 .
  • the first fluid consists of the high-pressure refrigerant and the second fluid consists of the low-pressure refrigerant.
  • the circulation canal for the first fluid 110 consists of the high-pressure circulation canal 10 , the inlet for the first fluid 111 corresponding to the high-pressure inlet 12 and the outlet for the first fluid 112 corresponding to the high-pressure outlet 13 .
  • the circulation canal for the second fluid 120 consists of the low-pressure circulation canal 11 , the inlet for the second fluid 121 corresponding to the low-pressure inlet 14 and the outlet for the second fluid 122 corresponding to the low-pressure outlet 15 .
  • the first fluid consists of the low-pressure refrigerant and the second fluid consists of the high-pressure refrigerant.
  • the first fluid consists of the refrigerant and the second fluid consists of the coolant.
  • the circulation canal for the first fluid 110 consists of the refrigerant circulation canal 19 , the inlet for the first fluid 111 corresponding to the refrigerant inlet 20 and the outlet for the first fluid 112 corresponding to the refrigerant outlet 21 .
  • the circulation canal for the second fluid 120 consists of the coolant circulation canal 22 , the inlet for the second fluid 121 corresponding to the coolant inlet 23 and the outlet for the second fluid 122 corresponding to the coolant outlet 24 .
  • the first fluid consists of the coolant and the second fluid consists of the refrigerant.
  • the layouts mentioned hereinabove are reversed.
  • the heat exchanger 100 comprises an end face 123 in which the inlet for the first fluid 111 , the outlet for the first fluid 112 , the inlet for the second fluid 121 and the outlet for the second fluid 122 are arranged.
  • the first fluid and the second fluid enter the heat exchanger 100 and are discharged from the heat exchanger 100 at the end face 123 .
  • the end face 123 can be provided only with the inlet for the first fluid 111 and with the outlet for the first fluid 112 or, alternatively, with the inlet for the second fluid 121 and with the outlet for the second fluid 122 .
  • the heat exchanger 100 according to the present invention is a heat exchanger comprising a circulation canal for the first fluid 110 and/or a circulation canal for the second fluid 120 which is indifferently arranged in the shape of an “I”, a “U” or any other arrangement, considering that the heat exchanger 100 according to the present invention comprises both an inlet and an outlet for at least one and the same fluid on the end face 123 .
  • the heat exchanger 100 is of parallelepipedal overall shape. However, the heat exchanger 100 can adopt other shapes.
  • the heat exchanger 100 is preferably a plate-type heat exchanger made up mainly of a stack of plates 124 .
  • the plates 124 are substantially planar and rectangular in shape and have a depth P, in a first direction, and a width L, in a second direction.
  • the first direction is perpendicular to the second direction.
  • the plates 124 additionally have parts of different depths, notably obtained by pressing.
  • FIGS. 4 and 5 respectively are a partially exploded view and an exploded view of the heat exchanger 110 of FIG. 3 .
  • the heat exchanger 110 consists of a stack of plates 124 .
  • Two contiguous plates 124 are joined together via their peripheral edge 125 to form the circulation tubes for the first fluid and for the second fluid.
  • a first circulation chamber 126 a for the first fluid and a second circulation chamber 126 b for the second fluid are defined, like those depicted in FIG. 5 .
  • the heat exchanger 100 comprises a plurality of first circulation chambers for the first fluid 126 a and a plurality of second circulation chambers for the second fluid 126 b, which are formed in alternation with one another.
  • Such an alternating arrangement of the first circulation chambers for the first fluid 126 a and the second circulation chambers for the second fluid 126 b makes it possible to optimize the transfer of heat between the first fluid and the second fluid.
  • One of the plates 124 of the heat exchanger 100 referred to as the last plate 124 , comprises the end face 123 .
  • the heat exchanger 100 comprises an end chamber 126 c delimited by the last plate 124 and a penultimate plate 124 of the stack of plates 124 that make up the heat exchanger 100 .
  • the penultimate plate 124 is contiguous with the last plate 124 .
  • the end chamber 126 c is indifferently either a first circulation chamber 126 a for the first fluid or a second circulation chamber 126 b for the second fluid, according to various different ways of embodying the heat exchanger 100 .
  • the end chamber 126 c is a second circulation chamber 126 b for the second fluid.
  • the end chamber 126 c should house at least one channeling means 127 , notably an insert 127 , able to channel the second fluid, firstly, from the inlet for the second fluid 121 toward a circulation inlet passage 130 for the second fluid which is formed in the set of plates 124 and secondly from a circulation outlet passage 131 for the second fluid, formed in the set of plates 124 , toward the outlet for the second fluid 122 .
  • channeling means 127 notably an insert 127 , able to channel the second fluid, firstly, from the inlet for the second fluid 121 toward a circulation inlet passage 130 for the second fluid which is formed in the set of plates 124 and secondly from a circulation outlet passage 131 for the second fluid, formed in the set of plates 124 , toward the outlet for the second fluid 122 .
  • the channeling means 127 notably the insert 127 , comprises an inlet circulation canal 128 a for channeling the second fluid between the inlet for the second fluid 121 and the circulation inlet passage 130 for the second fluid and an inlet circulation canal 128 b for channeling the second fluid between the outlet for the second fluid 122 and the circulation outlet passage 131 for the second fluid.
  • the end chamber 126 c houses the two circulation canals 128 a and 128 b for the second fluid.
  • the inlet for the second fluid 121 and the outlet for the second fluid 122 can be formed in any relatively arbitrary zone on the end face 123 of the heat exchanger 100 .
  • the inlet for the second fluid 121 and the outlet for the second fluid 122 may notably be arranged in a central zone 129 of the last plate 124 of the stack of plates 124 .
  • the central zone 129 is defined as a zone on the external face 123 of the last plate 124 arranged on either side of a first median axis x, in the first direction, and a second median axis y, in the second direction, of the last plate 124 .
  • the central zone 129 represents less than 30% of the depth P and/or of the width L of the last plate 124 .
  • inlet circulation canal 128 a and of the inlet circulation canal 128 b for the second fluid inside the end chamber 126 c offers a great deal of flexibility regarding the positioning of the inlet for the second fluid 121 and the outlet for the second fluid 122 through the last plate 124 .
  • the inlet circulation canal 128 a for the second fluid connects the inlet for the second fluid 121 to the inlet circulation passage 130 for the second fluid which extends through all of the plates 124 except for the last plate 124 .
  • the inlet circulation passage 130 for the second fluid connects together the second circulation chambers 126 b for the second fluid.
  • the outlet circulation canal 128 b for the second fluid connects the outlet circulation passage 131 for the second fluid, which extends through all of the plates 124 except for the last plate 124 , to the outlet for the second fluid 122 .
  • the outlet circulation passage 131 for the second fluid connects together the second circulation chambers 126 b for the second fluid.
  • the inlet circulation canal 128 a for the second fluid is orthogonal to the inlet circulation passage 130 for the second fluid and the outlet circulation canal 128 b for the second fluid is orthogonal to the outlet circulation passage 131 for the second fluid.
  • the insert 127 is housed in the end chamber 126 c through which the first fluid circulates, the insert 127 channeling the second fluid.
  • the insert 127 comprises the inlet circulation canal 128 a and the outlet circulation canal 128 b for the second fluid, which are arranged in the end chamber 126 c allowing circulation of the first fluid.
  • the inlet circulation canal 128 a and the outlet circulation canal 128 b for the second fluid are produced in the form of an additional component consisting of the insert 127 .
  • the insert 127 is positioned in the end chamber 126 c, between the last plate 124 and the penultimate plate 124 of the stack of plates 124 that make up the heat exchanger 100 .
  • the inlet circulation canal 128 a and the outlet circulation canal 128 b for the second fluid are produced from at least one boss formed on the last plate 124 and/or the penultimate plate 124 of the stack of plates 124 .
  • FIGS. 6 and 7 are partial schematic views of respective embodiment variants of the heat exchanger 100 according to the present invention.
  • the inlet circulation canal 128 a and the outlet circulation canal 128 b for the second fluid are produced by the insert 127 housed inside the end chamber 126 c, between the last plate 124 and the penultimate plate 124 of the stack of plates 124 that make up the heat exchanger 100 .
  • the insert 127 is formed of a single blade 132 .
  • the blade 132 is made from a strip, for example a metal strip, that has been pressed.
  • the blade 132 comprises a base wall 132 a and a contour 132 b.
  • the base wall 132 a and the contour 132 b are joined together by a lateral wall 132 c.
  • the base wall 132 a is in contact with the penultimate plate 124 of the stack of plates 124 and the contour 132 b is in contact with the last plate 124 of the stack of plates 124 .
  • the insert 127 is assembled with the last plate 124 and the penultimate plate 124 of the stack of plates 124 , preferably by brazing or the like.
  • the inlet circulation canal 128 a and the outlet circulation canal 128 b for the second fluid are delimited by the insert 127 and the last plate 124 .
  • the inlet circulation canal 128 a and the outlet circulation canal 128 b for the second fluid are produced by the insert 127 housed inside the end chamber 126 c, between the last plate 124 and the penultimate plate 124 of the stack of plates 124 that make up the heat exchanger 100 .
  • the insert 127 is formed by a joining-together of two blades 133 .
  • Each blade 133 is made from a strip, for example a metal strip, that has been pressed.
  • each blade 133 comprises a base wall 133 a and a contour 133 b which are joined together by a lateral wall 133 c.
  • the two blades 133 are joined together in such a way that their respective contours 133 b are in contact with one another.
  • the base wall 133 a of one of the blades 133 is in contact with the penultimate plate 124 of the stack of plates 124 whereas the base wall 133 a of the other of the blades 133 is in contact with the last plate 124 of the stack of plates 124 .
  • the insert 127 is assembled with the last plate 124 and the penultimate plate 124 of the stack of plates 124 , preferably by brazing or the like.
  • the inlet circulation canal 128 a and the outlet circulation canal 128 b for the second fluid are delimited by the insert 127 , in an interior space lying between the two blades 133 .
  • the blade 133 in contact with the last plate 124 has circulation openings 134 collaborating respectively with the inlet for the second fluid 121 and the outlet for the second fluid 122 .
  • each blade 133 is formed of a strip, for example a metal strip, which is assembled, notably by brazing or the like, with the last plate 124 and the penultimate plate 124 .
  • FIGS. 8 a and 8 b are schematic views of two embodiments of the insert 127 according to the present invention.
  • the insert 127 consists of two separate distribution compartments 135 a and 135 b.
  • the two distribution compartments 135 a and 135 b are identical.
  • the two distribution compartments 135 a and 135 b are arranged with local symmetry relative to one another.
  • the two distribution compartments 135 a and 135 b respectively define the inlet circulation canal 128 a and the outlet circulation canal 128 b.
  • the insert 127 consists of a distribution device 136 made up of a single piece, comprising two distribution chambers 136 a and 136 b.
  • the two distribution chambers 136 a and 136 b are identical.
  • the two distribution chambers 136 a and 136 b are arranged with local symmetry relative to one another.
  • the walls that make up the insert 127 advantageously respectively extend in the first direction and the second direction as shown in FIG. 8 a .
  • at least one of the walls that make up the insert 127 may make an angle with the first direction and/or the second direction, as shown in FIG. 8 b .
  • Such special arrangements allow the inlet for the second fluid 121 and the outlet for the second fluid 122 to be located in an optimal configuration.
  • FIGS. 9 a to 9 c are schematic views of the last plate 24 of the heat exchanger 100 in respective variant forms of integration into the air-conditioning loop 2 of the air-conditioning system 1 .
  • the last plate 124 is provided with a connecting element 140 allowing the heat exchanger 100 to be connected to the other components of the air-conditioning loop 2 and/or of the secondary loop 18 of the air-conditioning system 1 .
  • the connecting element 140 is the expansion member 5 of the air-conditioning loop 2 or any other component that forms part of the air-conditioning loop 2 and/or of the secondary loop 18 .
  • the connecting element 140 comprises an intake opening 141 and a discharge opening 142 for the second fluid, which openings are respectively in fluidic communication with the inlet for the second fluid 121 and the outlet for the second fluid 122 .
  • the connecting element 140 has a major axis A passing through the centers of the intake opening 141 and of the discharge opening 142 .
  • the connecting element 140 is positioned in such a way that the major axis A forms a given angle with the first median axis x, of between 0° and 90°, for example of the order of 45°.
  • the angle is equal to 0°
  • the angle is equal to 90°
  • the angle is equal to 45°.

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  • 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)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
  • Air-Conditioning For Vehicles (AREA)
US13/884,392 2010-11-10 2011-11-07 Fluid/Fluid Heat Exchanger Abandoned US20130292101A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR10/04404 2010-11-10
FR1004404A FR2967248B1 (fr) 2010-11-10 2010-11-10 Echangeur de chaleur fluide/fluide
PCT/EP2011/069573 WO2012062714A1 (fr) 2010-11-10 2011-11-07 Echangeur de chaleur fluide/fluide.

Publications (1)

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US20130292101A1 true US20130292101A1 (en) 2013-11-07

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US13/884,392 Abandoned US20130292101A1 (en) 2010-11-10 2011-11-07 Fluid/Fluid Heat Exchanger

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US (1) US20130292101A1 (fr)
EP (1) EP2638350B1 (fr)
JP (1) JP5837605B2 (fr)
FR (1) FR2967248B1 (fr)
MX (1) MX2013005251A (fr)
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EP4296602A1 (fr) * 2022-06-24 2023-12-27 G20 Engineering S.r.l. Échangeur de chaleur à plaques et ensemble hydraulique comprenant un tel échangeur de chaleur

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FR2967248A1 (fr) 2012-05-11
EP2638350B1 (fr) 2015-03-18
PL2638350T3 (pl) 2015-10-30
FR2967248B1 (fr) 2015-01-23
EP2638350A1 (fr) 2013-09-18
WO2012062714A1 (fr) 2012-05-18
JP2013543101A (ja) 2013-11-28
JP5837605B2 (ja) 2015-12-24
MX2013005251A (es) 2013-07-05

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