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
  • F28D7/0066—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
  • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
  • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
  • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
  • F28D1/0408—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids
  • F28D1/0426—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids with units having particular arrangement relative to the large body of fluid, e.g. with interleaved units or with adjacent heat exchange units in common air flow or with units extending at an angle to each other or with units arranged around a central element
  • F28D1/0452—Combination of units extending one behind the other with units extending one beside or one above the other
• • 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
• • 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
  • F28F21/06—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material
  • F28F21/062—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material the heat-exchange apparatus employing tubular 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
  • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
  • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
  • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
  • F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
  • F28D1/05316—Assemblies of conduits connected to common headers, e.g. core type radiators
  • F28D1/05341—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits combined with a particular flow pattern, e.g. multi-row multi-stage radiators
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
  • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
  • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
  • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
  • F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
  • F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
  • F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
  • F28D1/05391—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits combined with a particular flow pattern, e.g. multi-row multi-stage radiators
• • 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
  • F28F21/06—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material
• • 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
  • F28F9/007—Auxiliary supports for elements
  • F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
• • 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
• • 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
  • F28F9/0202—Header boxes having their inner space divided by partitions
  • F28F9/0204—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions
• • 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
  • F28F9/0202—Header boxes having their inner space divided by partitions
  • F28F9/0204—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions
  • F28F9/0214—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only longitudinal partitions
  • F28F9/0217—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only longitudinal partitions the partitions being separate elements attached to 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
  • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
  • F28F9/02—Header boxes; End plates
  • F28F9/04—Arrangements for sealing elements into header boxes or end plates
  • F28F9/06—Arrangements for sealing elements into header boxes or end plates by dismountable joints
• • 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
  • F28F9/04—Arrangements for sealing elements into header boxes or end plates
  • F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
• • 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
  • F28F9/04—Arrangements for sealing elements into header boxes or end plates
  • F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
  • F28F9/162—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by using bonding or sealing substances, e.g. adhesives
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
  • F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
  • F28F2255/02—Flexible 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
  • F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
  • F28F2255/14—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes molded
  • F28F2255/146—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes molded overmolded

Definitions

• This disclosure relates to heat exchangers.
• it relates to heat exchangers which may be assembled modularly.
• Heat exchangers are commonly used in diverse application to expel and/or capture heat.
• They may include a plurality of pipes or tubes which contain a heat exchange fluid flowing therethrough, and which is exposed to an environment of a higher or lower temperature. As the heat exchange fluid flows through the tubes, the temperature thereof is brought closer to that of the environment, thereby cooling or heating it, as per the required design.
• a module for constructing therefrom a heat exchanger comprising:
• each mat comprising a plurality of heat exchange tubes arranged so as to define a plane, the heat exchange tubes being in fluid communication with the manifolds and spanning therebetween;
• each of the manifolds comprises selectively sealable end openings formed in facing ends thereof and defining a longitudinal flow path substantially perpendicular to the tubes and parallel with the planes defined thereby;
• each of the manifolds further comprises selectively sealable side openings on facing sides thereof and each defining a lateral flow path substantially perpendicular to the longitudinal flow path and to the planes defined by the tubes.
• Each of the mats may further comprise two headers configured for bringing the tubes into fluid communication with the manifolds, and each being connected between the tubes and one of the manifolds.
• the headers may be overmolded on the tubes.
• the headers may comprise positioning features, each configured to cooperate with a corresponding positioning feature of an adjacent header to facilitate positioning thereof.
• Each of the side openings may be defined by a side-lip configured to lie in registration with a side-lip of an identical manifold.
• Each of the end openings may be defined by an end-lip configured to lie in registration with an end-lip of an identical manifold.
• the module may further comprise caps configured to be selectively connected to one or more of the side and end openings to seal it.
• a module for constructing therefrom a heat exchanger comprising:
• each mat comprising a plurality of heat exchange tubes arranged so as to define a plane, the heat exchange tubes being in fluid communication with the manifolds and spanning therebetween;
• At least one of the manifolds comprises a division arrangement configured to facilitate selectively fluidly isolating one or more of the mats from the tubes of the other mats.
• the division arrangement may be configured to divide an internal fluid chamber of the manifold along a plane substantially parallel to the planes defined the mats.
• the division arrangement may comprise one or more pairs of oppositely disposed slots on an interior surface of the manifold and be configured to receive a partition spanning therebetween.
• the slots may extend longitudinally along the length of the manifold.
• a module for constructing therefrom a heat exchanger comprising:
• each mat comprising a plurality of heat exchange tubes arranged so as to define a plane and being spaced from one another giving rise to gaps therebetween, the heat exchange tubes being in fluid communication with the manifolds and spanning therebetween; wherein each of the gaps is disposed such that it overlaps with projections, in a direction perpendicular to the planes, of one or more tubes of other of the mats.
• a majority of the gaps in each mat may be of the same size, with each of the mats further comprising one or more, e.g., two, auxiliary gaps of a different size, for example smaller.
• the auxiliary gaps may be formed adjacent extreme tubes disposed on one end of their respective tubes.
• the mats may be arranged such that extreme tubes of adjacent mats are on alternate sides thereof from one another.
• Each mat may further comprise a support element configured to grip each of the tubes and maintain its position, each of the support elements being further configured to be rigidly connected to a support element of an adjacent mat so as to preclude an arrangement wherein the mats overlie one another with the extreme tubes thereof on the same sides thereof.
• the support elements may each comprise a linking arrangement configured to cooperate with the linking arrangement of an adjacent support element to facilitate the rigid connection.
• the linking arrangements may comprise tabs and slots.
• Each of the gaps may be disposed such that it overlaps with projections, in a direction perpendicular to the planes, of a tube of an adjacent mat. Each of the gaps may fully overlap with the projections.
• a module for constructing therefrom a heat exchanger comprising:
• each mat comprising a plurality of heat exchange tubes arranged so as to define a plane, the heat exchange tubes being in fluid communication with the manifolds and spanning therebetween;
• each mat comprises one or more support elements disposed coplanar therewith and transverse to the tubes, the support elements configured to grip each of the tubes and maintain its position, each of the support elements being further configured to be rigidly connected to a support element of an adjacent mat.
• the support elements may each comprise a linking arrangement configured to cooperate with the linking arrangement of an adjacent support element to facilitate the rigid connection.
• the linking arrangement may facilitate snapping connection with an adjacent support element.
• the linking arrangements may comprise tabs and slots.
• a heat exchanger comprising one or more modules as described above.
• Fig. 1A is a perspective view of a heat exchange module, according to the presently disclosed subject matter
• Fig. IB is a perspective view of a heat exchanger made of modules as illustrated in Fig.
• Fig. 2 is a mat of the module illustrated in Fig. 1A;
• Figs. 3A and 3B are, respectively, front and rear respective views of a header of the mat illustrated in Fig. 2;
• Fig. 4A is a front view of a support element of the mat illustrated in Fig. 2;
• Fig. 4B is a front view of several of the support elements illustrated in Fig. 4A connected to each other;
• Fig. 5 is a perspective view of a manifold of the module illustrated in Fig. 1 A;
• Fig. 6 is an end view of the manifold illustrated in Fig. 5;
• Figs. 7A and 7B are schematic illustrations of assembly of several of the mats illustrated in Fig. 1A;
• Figs. 8 A and 8B are close-up views of, respectively, the module illustrated in Fig. 1A and the heat exchanger illustrated in Fig. IB, showing a flow blocker;
• Fig. 8C is a cross-sectional close up view of the flow blocker illustrated in Figs. 8A and 8B mounted on the module, before being secured thereto.
• a heat exchange module which is generally indicated at 10, for constructing a heat exchanger, for example as indicated at 12 in Fig. IB.
• Each module 10 comprises a plurality of mats 20 connected at each end thereof to a manifold 22.
• the elements of the modules 10 may be made of any suitable material. According to some examples, they are made of a polymeric material, for example one which can withstand corrosive environments and/or working fluids flowing therethrough, e.g., in accordance with the conditions under which it is designed to operate. It will be appreciated that the module 10 may be provided such that all constituent elements thereof are made from the same material, or such that at least some are made from different materials. As better seen in Fig.
• each of the mats 20 comprises a plurality of planarly-arranged heat exchange tubes 24 defining a plane X, spanning between two headers 26, one at each end thereof.
• one or more support elements 28 may be provided transverse to the tubes 24, configured to maintain their positions relative to other tubes.
• each of the headers 26 comprises a plurality of through- going tube-apertures 30, each for receiving therein a tube 24, aligned linearly along an exchanger end 32 thereof, and which are in fluid communication with a header chamber 34, which is configured for being brought into fluid communication with one of the manifolds 22, as will be described below.
• Top and bottom surfaces 36, 38 of the header 26 are formed with positioning features 40, designed to cooperate with similar corresponding positioning features on a header placed thereon to facilitate a stacked arrangement thereof.
• the positioning arrangements 40 may be configured such that the positioning features 40 on both the top and bottom surfaces 36, 38 of the header 26 are designed to cooperate with the positioning features on either the top or bottom surface of an adjacent header.
• a positioning projection 42a may be provided spanning lengthwise on one side of the length of the top surface 36, and a correspondingly formed positioning socket 42b, configured to receive within a positioning projection, is provided spanning lengthwise on the other side of the top surface.
• a similar positioning projection and socket are formed on the bottom surface 38, on respective opposite sides (i.e., with the positioning socket of the bottom surface being formed on the same side along the length of the header 26 that the positioning projection 42a is formed on the top surface 36, and the positioning projection of the bottom face being formed on the same side along the length of the header that the positioning socket 42b is formed on the top surface).
• the positioning projections 42a of one will be aligned with the positioning sockets 42b of the other, irrespective of which of the top and bottom surfaces 36, 38 of each is facing upwardly.
• the headers 26 may be made of a moldable material, such as a polymer, e.g., a thermoplastic or thermoset. Accordingly, the header 26 may be formed directly on the tubes 24 connected thereto, e.g., by an overmolding process, thereby simplifying manufacture of the mat 20 by obviating the need to insert a large number of tubes 24 into their respective headers 26. In addition, by providing the header 26 which is overmolded on the tubes 24, the tubes do not need to be welded, either to the header or the manifold 22, mitigating the risk of ends of the tubes being deformed such that flow through them is restricted and/or prevented.
• a moldable material such as a polymer, e.g., a thermoplastic or thermoset. Accordingly, the header 26 may be formed directly on the tubes 24 connected thereto, e.g., by an overmolding process, thereby simplifying manufacture of the mat 20 by obviating the need to insert a large number of tubes 24 into their respective headers 26.
• each of the support elements 28 comprises a gripping portion 44 spanning between two flat end surfaces 27 and having a plurality of seats 46, each for receiving therein one of the tubes 24.
• Each seat 46 is defined between two upwardly-projecting dividers 48, each of which may terminate in an outwardly-flared head 50, which facilitates maintaining a respective tube 24 therein.
• the support elements 28 may be made from a material which provides sufficient flexibility to bias adjacent dividers 48 outwardly in order to facilitate introduction of a tube 24 into the seat 46 defined therebetween.
• the seats 46 may be evenly spaced along the length of the support element 28, giving rise to evenly sized gaps 25 between a majority of adjacent tubes 24 of each mat 20, with the exception of a small number (e.g., one or two) extreme seats 46a at one end, which is spaced from its adjacent seat by a different distance, for example a smaller distance, than are the other seats from one another, giving rise to auxiliary gaps 25a which are smaller than the other, evenly sized, gaps.
• a small number e.g., one or two
• the support elements 28 may further comprise a linking arrangement configured to facilitate rigid connection of each support element to one adjacent thereto, i.e., on an adjacent mat 20.
• This rigid connection may contribute to the mat's 20 stability, e.g., withstanding vibrations due to fluids rushing rapidly past the tubes 24.
• each of the linking arrangements may comprise upwardly- projecting linking tabs 52 and downwardly-facing linking slots 54, each configured to receive therein a linking tab, for example snappingly, thereby facilitating simple connection to an adjacent support element 28.
• the linking tabs 52 may face downwardly with the linking slots 54 facing upwardly, or be arranged in any other suitable manner, without departing from the scope of the presently disclosed subject matter, mutatis mutandis.
• the linking tabs and slots 52, 54 are spaced such that when one of the support elements 28 is disposed above the other, each of the linking tabs of one of the support elements is aligned with a corresponding linking slot of the other.
• the linking tabs and slots 52, 54 may be spaced such that each of the linking tabs of one of the support elements is aligned with a corresponding linking slot of the other only when they are reversed with respect to one another, i.e., the extreme seats 46a thereof are on opposite sides along their lengths, as illustrated in Fig. 4B. Accordingly, and owing to the different spacing of the extreme seats 46a from that adjacent to it, the tubes 24 of adjacent mats 20 are offset with respect to one another, such that each of the gaps 25, 25a is disposed such that it overlaps with the projection, which lies in a direction perpendicular to the planes X defined by the mats 20, of a tube of an adjacent mat.
• any path through the tubes 24 of the module which is perpendicular to the mats 20 necessarily impinges on a tube 24, even if it passes through a gap 25, 25a of a mat in front thereof.
• Such a "staggered” arrangement may facilitate airflow through the module 10 which transfers heat between the tubes and the environment more efficiently.
• the support elements 28 may be further used to facilitate construction of the heat exchanger 12. As seen in Fig. IB, several of the modules may be attached such that they are stacked.
• the support elements 28 may facilitate maintaining the tubes 24 is substantially horizontal positions, e.g., preventing them from assuming a catenary or similar shape under their own weights.
• the flat end surface 27 thereof may lie on each other, wherein vertically-stacked support elements 28 form a support structure, facilitating bearing the loads of all tubes 24, e.g., by the floor.
• each of the manifolds 22 comprises a housing 58 defining there within a fluid chamber 60.
• a bottom surface 62 of the housing 58 is formed with a header- interface 64, configured for bringing the tubes 24 into fluid communication with the fluid chamber 60.
• the header-interface 64 comprises a plurality of parallely-arranged rows of through-going apertures 66.
• the apertures 66 may be arranged to conform to the staggered arrangement of tubes 24, for example as illustrated in Fig. 4.
• a channel 68 may be formed along each row, thereby insetting the apertures 66 below the surface of the header- interface 64.
• the channels 68 may be configured to lie in registration with the header chamber 34 of a corresponding header 26 when assembled to the manifold 22.
• the header-interface 64 may further comprise grooves 70 formed between the rows of apertures 66 defining therebetween a plurality of bases 72 at the surface of the header-interface, each for contacting a header 26 when the mat 20 is assembled, for example for being welded thereto.
• Side surfaces 74 of the housing 58 are each formed with one or more selectively sealable (i.e., configured to facilitate it to be sealed, thereby preventing flow of fluid therethrough, selectively) side openings 76 for attachment to an adjacent manifold, each defining a lateral flow path Piat therethrough.
• the lateral flow paths P la t are each substantially perpendicular to the planes defined by the tubes 24.
• a raised side-lip 78 may be formed about each side opening 76, constituting a welding surface for facilitating a sealing connection to another element, such as a cap, inlet/outlet or a corresponding side-lip of an adjacent manifold (thereby bringing the two manifolds into fluid communication with each other via the facing side openings), as described below.
• outer surfaces 78a of the side-lips 78 may be configured to substantially fully contact corresponding side-lips of an adjacent manifold 22 when two manifolds are disposed adjacently to another with the side surface 74 of one facing a side surface of the other, e.g., the outer surface of each side-lip may be flat and substantially parallel to a plane defined by the tubes 24 of one of the mats 20.
• Ends 80 of the housing 58 are each formed with a selectively sealable end opening 82, for attachment to an adjacent manifold, and defining a longitudinal flow path Pi on therebetween.
• the longitudinal flow path Pi on is substantially perpendicular to the tubes 24 and the lateral flow path Piat, and parallel to the planes defined thereby.
• a raised end-lip 84 may be formed around each end opening 82, constituting a welding surface for sealing connection to another element, such as a cap, inlet/outlet or a corresponding end-lip of an adjacent manifold (thereby bringing the two manifolds into fluid communication with each other via the facing end openings), as described below.
• an outer surface 84a of each end-lip 84 may be configured to substantially fully contact a corresponding end-lip of an adjacent manifold 22 when two manifolds are disposed adjacently to another with the end 80 of one facing the end of the other, e.g., the outer surface of each end-lip may be flat and substantially perpendicular to an axis traversing longitudinally through the fluid chamber 60.
• an inner surface of the manifold 22 may be provided with a division arrangement of the manifold, comprising a pair of longitudinally extending slots 86, for example each defined between a pair of longitudinal projections 88.
• the slots 86 face one another, and are disposed between the side surfaces 74 of the housing 58, i.e., such that one of the slots is formed on an inner surface of the header-interface 64.
• the slots 86 may be formed halfway between the side surfaces 74, such that as many rows of apertures 66 (and thereby headers 26 attached to the manifold 22) are above them as are below them.
• the slots 86 are configured for receiving therein a partition (not illustrated in Fig.
• fluid isolation within the fluid chamber 60 is only considered within the chamber itself, e.g., it does not consider that fluid may cross the partition by exiting the chamber via an opening 76, 82 or via the header-interface 64.
• fluid access to the module 10 may be controlled by selectively blocking the side and end openings 76, 82 of the manifolds 22, and/or by facilitating access thereto.
• Side and end caps 90, 92 may be provided to seal the side and end openings 76, 82, respectively, for example being welded to the side- and end-lips 78, 84.
• Nipples 94 may be provided, for example to be connected lying in registration with side and/or end openings 76, 82, facilitating bringing the fluid chamber 60 of one or manifolds into fluid communication with an 5 external fluid pipe.
• a nipple 94 may be provided on areas of the housing 58 not formed with an opening, for example by a user cutting an opening in a top surface 56 (as indicated in Fig. 5) of the housing as necessary.
• modules 10 may be assembled together to form the heat exchanger 12. According to some examples, modules 10 are arranged with the manifolds on each side thereof stacked
• reference numeral may be used to refer collectively to all reference numerals which include the same number followed by a trailing letter and/or prime, e.g., 100 may be used to refer collectively to 100'a, 100'b, 100"a,
• Two or more modules 10 so stacked constitute a lateral subassembly 150 of the heat exchanger, spanning between first and second ends 102', 102" defined by the manifolds 22.
• the prime notation is used to refer to corresponding side junctions 100 formed between opposite ends 102 of the same manifolds, i.e.,
• side junction 100a is formed between first ends 102' of the same pair of adjacent manifolds 22 between the second ends 102" of which side junction 100'a is formed.
• the lateral subassembly 150 may be configured to regulate fluid flow therethrough. According to some examples, as illustrated schematically in Fig. 7A, alternating side junctions 100' on the first end 102' may be connected to one another, bringing the fluid chambers 60 of
• Nipples 94 may be provided as necessary at the entrance and exit of the fluid flow path so defined.
• all of the side junctions 100' of the first end 102' are left unsealed, and all of the side junctions 100" of the second end 102" are sealed.
• partitions 104 are provided in the manifolds 22 of the first end 102', thereby fluidly isolating some of the headers 26 of each module 10 from the others within the manifold 22. Accordingly, fluid within the lateral subassembly 150 flows through each mat 20 in succession in both direction, reversing direction one time therewithin.
• the manifolds 22 may be configured to receive more than one partitions, thereby allowing reversing of fluid flow more than once within each Nipples 94 may be provided as necessary at the entrance and exit of the fluid flow path so defined.
• the heat exchanger 12 may comprise a single module 10, a single lateral subassembly 150, one or more modules connected only by end openings 82 thereof, several lateral subassemblies connected by end openings thereof, any of the above or other combinations modified by connecting adjacent manifolds 22 via holes cut by a user in top surfaces 56 thereof (e.g., as illustrated in Fig. IB), or any other suitable arrangement of modules, without departing from the scope of the presently disclosed subject matter, mutatis mutandis.
• the heat exchanger 12 may be provided with flow blockers 110 between adjacent modules 10, configured to fill the space therebetween, thereby ensuring that fluid transverse to the heat exchanger 12 passes across the tubes 24, where heat exchange primarily takes places.
• the flow blockers 110 may be L-shaped, with positioning apertures 112 formed therein.
• the modules 10 are formed with pins 114, for example provided on the manifolds 22, for mating with the positioning apertures 112.
• the positioning apertures 112 may have a diameter similar to that of the pin, and a wider diameter on an upper portion thereof.
• the pin 114 can be melted to fill the void within the upper diameter of the positioning apertures 112, thereby filling it and locking the flow blocker 110 in place.
• the pin 114 may be taller than the height of the positioning apertures 112, thereby providing material to fill the upper diameter when melted.

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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)

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• 2016
  • 2016-10-10 IL IL248304A patent/IL248304B/en unknown
• 2017
  • 2017-10-03 EP EP17860446.8A patent/EP3523588B1/en active Active
  • 2017-10-03 JP JP2019515861A patent/JP7056961B2/ja active Active
  • 2017-10-03 CN CN201780062519.4A patent/CN109804214A/zh active Pending
  • 2017-10-03 CN CN202311376691.0A patent/CN117516223A/zh active Pending
  • 2017-10-03 WO PCT/IL2017/051120 patent/WO2018069919A1/en not_active Ceased
  • 2017-10-03 US US16/340,803 patent/US11118840B2/en active Active

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