EP3457068B1 - Heat exchanger assembly - Google Patents

Heat exchanger assembly Download PDF

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Publication number
EP3457068B1
EP3457068B1 EP17461602.9A EP17461602A EP3457068B1 EP 3457068 B1 EP3457068 B1 EP 3457068B1 EP 17461602 A EP17461602 A EP 17461602A EP 3457068 B1 EP3457068 B1 EP 3457068B1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
housing
exchanger assembly
shell
connection block
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP17461602.9A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3457068A1 (en
Inventor
Grzegorz Romanski
Maciej PEDRAS
Dariusz BUREK
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Autosystemy Sp zoo
Original Assignee
Valeo Autosystemy Sp zoo
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 Valeo Autosystemy Sp zoo filed Critical Valeo Autosystemy Sp zoo
Priority to EP17461602.9A priority Critical patent/EP3457068B1/en
Priority to PL17461602T priority patent/PL3457068T3/pl
Priority to EP18461522.7A priority patent/EP3457069B1/en
Priority to CN201820683966.3U priority patent/CN209326434U/zh
Priority to PCT/EP2018/074936 priority patent/WO2019053213A1/en
Publication of EP3457068A1 publication Critical patent/EP3457068A1/en
Application granted granted Critical
Publication of EP3457068B1 publication Critical patent/EP3457068B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F7/00—Elements not covered by group F28F1/00, F28F3/00 or F28F5/00
    • F28F7/02—Blocks traversed by passages for heat-exchange media
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
    • F28D7/1684—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation the conduits having a non-circular cross-section
    • F28D7/1692—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation the conduits having a non-circular cross-section with particular pattern of flow of the heat exchange media, e.g. change of flow direction
    • 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
    • F28F9/0234—Header boxes; End plates having a second heat exchanger disposed there within, e.g. oil cooler
    • 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
    • F28F9/0251—Massive connectors, e.g. blocks; Plate-like connectors
    • F28F9/0253—Massive connectors, e.g. blocks; Plate-like connectors with multiple channels, e.g. with combined inflow and outflow channels
    • 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
    • F28F2280/06—Adapter frames, e.g. for mounting heat exchanger cores on other structure and for allowing fluidic connections

Definitions

  • the present invention relates to a heat exchanger assembly, according to claim 1, especially to an automotive heat exchanger assembly, in particular a water chiller or a water-gas cooler with indirect cooling.
  • One prior art heat exchanger assembly includes two separate fluid circuits.
  • One circuit comprises a plurality of hollow flow plates, which extend parallel to each other.
  • the flow plates in particular their internal spaces, are fluidly connected to surrounding flow plates at their ends alternately so that this fluid circuit takes the undulate form.
  • Second fluid circuit consists of two manifolds and a plurality of flow ducts. Ends of flow ducts are received in the manifolds. The flow ducts are inserted between the flow plates so that one flow ducts is situated between and is in contact with two adjacent flow plates. Heat exchange takes place on the interface between the flow ducts and the flow plates.
  • DE102015111393A1 discloses a heat exchanger assembly in accordance with the preamble of claim 1.
  • One object of the present invention is to provide a heat exchanger assembly provided with improved protection against corrosion.
  • Another object of the present invention is to provide a heat exchanger assembly, in which all its components forming respective fluid conduits participate in the heat exchange process, whereby the heat transfer area of the heat exchanger assembly is increased, which in turn increases the heat exchange efficiency.
  • a heat exchanger assembly according to the invention is defined by claim 1.
  • All components of the heat exchanger core that are involved in heat exchange between the coolant and the fluid to be cooled down are closed in the housing and protected by it. It also means that the coolant supplied to the housing flows over/is in contact with all those components, which maximizes heat exchange between the coolant and the fluid to be cooled down.
  • the housing is made of plastic materials the housing itself and all the components contained therein are protected effectively against corrosion. It also means that the housing can easily be manufactured in any shape required by a customer and adapted to various needs. Moreover, the housing can be provided with additional mounting features/elements like brackets or hooks to mount the heat exchanger assembly in a vehicle.
  • many components of the heat exchanger assembly can be formed in a single part, which reduces the number of separate components used and makes the production process easier.
  • a heat exchanger assembly 1 comprises a heat exchanger core 2, which in turn includes first and second manifolds 20, 21.
  • the heat exchanger core 2 further comprises a plurality of flat hollow flow ducts 22 arranged in two rows. Ends of the flow ducts 22 are inserted in a plurality of corresponding slots provided in the manifolds 20, 21, namely one end of each flow duct 22 is received in one slot.
  • the flow ducts 22 are connected to the manifolds 20, 21.
  • the manifold 20 has two flow channels and the manifold 21 has one flow channel defined therein.
  • the flow channels of the manifolds 20, 21 are in fluid communication with both the slots provided in the manifolds 20, 21 and inner passages of the flow ducts 22.
  • the heat exchanger core 2 may further comprise a plurality of coolant turbulators 23 in such a way that one coolant turbulator 23 is situated between two adjacent flow ducts 22.
  • the function of the coolant turbulators 32 is to transform a laminar flow of a coolant into a turbulent one, what, in turn, increases the heat exchange efficiency.
  • the heat exchanger core 2 further comprises a connection block 24 for a fluid to be cooled down, especially CO 2 .
  • the connection block 24 is situated on and connected to one of the manifolds, namely the first manifold 20.
  • the connection block 24 comprises two ports 25, 26 through which the fluid to be cooled down flows into and out of the heat exchanger core 2.
  • the ports 25, 26 are in fluid communication with the flow channels defined in the first manifold 20, the inner passages of the flow ducts 22 and the flow channel defined in the second manifold 21. All components of the heat exchanger core 2 are connected to each other by brazing to ensure the fluid-tightness of the heat exchanger core 2.
  • the fluid to be cooled down enters the port 25 in the connection block 24, then flows successively through one of two flow channels defined in the first manifold 20, one row of the flow ducts 22, the channel defined in the second manifold 21, the other row of the flow ducts 22, the other flow channel defined in the first manifold 20 and finally leaves the heat exchanger core 2 through the port 26.
  • the heat exchanger core 2, in particular the connection block 24, the manifolds 20, 21 and the flow ducts 22, defines a first fluid circuit, especially for the fluid to be cooled down.
  • the heat exchanger assembly 1 further comprises a housing 3.
  • the housing 3 comprises a first half-shell 30 and a second half-shell 31.
  • the housing 3 further comprises two coolant ports 33, 34 situated on the first half-shell 30.
  • the housing 3 may comprise brackets 37, which allow the housing 3 to be secured to components of a vehicle.
  • the housing 3, in particular the half-shells 30, 31, is made of plastic materials , which makes the housing 3 immune to corrosion caused by destructive environmental factors.
  • both half-shells 30, 31 When both half-shells 30, 31 are brought and connected together they define an internal space and the heat exchanger core 2 fits into the internal space.
  • a sealing means 32 is provided between the half-shells 30, 31.
  • the half-shells 30, 31 are joined directly, after insertion of the core 2, by means of plastic welding.
  • the housing 3, once assembled, encapsulates the heat exchanger core 2, namely the heat exchanger core 2 is closed and contained inside the housing 3.
  • the housing 3 further comprises a flange 36, which defines and surrounds an opening 35.
  • connection block 24 extends outside the housing 3.
  • the heat exchanger core 2 comprises a sealing means, that seals the connection block 24 against an inner surface of the opening 35/flange 36 of the housing 3, wherein the sealing means is in contact with both the connection block 24 and the inner surface of the housing 3. This way the coolant is prevented from flowing out of the housing 3 through the opening 35.
  • the sealing means includes a groove 27 formed in an outer surface of the connection block 24 and a seal 28, in particular an O-ring, arranged in the groove 27.
  • a seal 28 presses tightly against the inner surface of the opening 35/flange 36 so that the fluid-tightness of the heat exchanger assembly 1 is ensured.
  • the half-shells 30, 31 are joined together along a line which is remote from the opening 35. This simplifies and improves sealing between the connection block 35 and the housing 3.
  • connection block 24 can comprise a series of recesses 29 on its outer surface for high pressure test tools.
  • the connection block 24 has the general form of a cuboid.
  • the connection block 24 has four side walls.
  • Each of the recesses 29 is located in the centre of each side wall.
  • the recesses 29 each have an arched bottom.
  • the recesses 25 can be made in different positions on the side walls of the connection block 24 and may have different shapes depending on the tools to be used. This ensures that a wide variety of high pressure tools can be used while other advantages of the invention are maintained.
  • the housing 3 can comprise two open channels defined in walls of the half-shells 30, 31, what means that the open channels are integral to the half-shells 30, 31.
  • Each of the open channels in fact includes two separate aligned open channels 38, 39, one for each half-shell 30, 31, respectively.
  • the open channels 38, 39 are formed at the extension of the coolant ports 33, 34.
  • the open channel 38 in the first half-shell 30 is straight and has a constant cross-section.
  • the open channel 39 in the second half-shell 31 is in turn at least partially bended/arc-shaped over its length and at its end facing a bottom of the second half-shell 31. It means that the cross-section of the open channel 39 at least partially decreases towards the bottom of the second half-shell 31 over the length of the channel 39.
  • one section of the channel 39 can be straight while the other section can be arc-shaped and end in a distance to the bottom of the second half-shell 31, as shown in figure 3 .
  • the open channels 38, 39 allow the coolant to flow evenly over all flow ducts 22 in a given row.
  • the open channels 38, 39 are configured to decrease pressure drops and ensure smooth coolant flow within the housing 3 by creating efficient flow regime.
  • the heat exchanger core 2 When the entire heat exchanger assembly 1 is assembled the heat exchanger core 2 is closed in and/or encapsulated by the housing 3.
  • the coolant ports 25, 26 of the connection block 24 can be easily accessed from the outside of the heat exchanger assembly 1.
  • the coolant flows into the housing 3 through the port 33, next flows between the flow ducts 22, cooling down the fluid flowing therein, and flows out of the housing 3 through the port 34.
  • the housing 3 defines a second fluid circuit, in particular for the coolant.
  • the heat exchanger core 2 can comprise only one row of the flow ducts 22.
  • the manifolds 20, 21 each comprise only one flow channel defined therein.
  • each of the manifolds 20, 21 is associated with its own connection block 24.
  • One connection block 24 is an inlet one, whereas the other is an outlet one, and the fluid to be cooled down flows through the flow ducts 22 only in one direction.
  • the housing 3 comprises one opening 35 for each of the connection blocks 24, namely two openings 35 in total. It means that the number of the openings 35 is equal to the number of the connection blocks 24.
  • the heat exchanger core 2 comprises one row of flow ducts 22.
  • the fluid to be cooled down flows to the second manifold 21 through one set of the flow ducts 22 and flows back to the first manifold 20 through a second set of the flow ducts 22 of the same row.
  • the fluid to be cooled down flows into and out of the heat exchanger core 2 through one connection block 24 placed on the first manifold 20.
  • the heat exchanger assembly 1 comprises at least one connection block 24 connected to at least one manifold 20, 21 and the housing 3 has at least one opening 35 to receive at least one connection block 24.
  • the housing 3 can consist of any appropriate number of shells, for example three, four, etc.
  • the channel 39 can be arc-shaped over its entire length, namely from an edge of the second half-shell 31 to the bottom of the second half-shell 31 and can end at the bottom itself. It means that the cross-section of the channel 39 decreases over the entire length of the open channel 39 from the edge of the second half-shell 31 to the bottom of the second half-shell 31.
  • the sealing means between the heat exchanger core 2 and the housing 3 need not be provided between the connection block 24 and the inner surface of the opening 35/flange 36 of the housing 3.
  • the sealing means can be situated between and be in contact with the connection block 24 and an inner surface of the housing 3 around the opening 35, namely the surface of the housing 3 that faces the heat exchanger core 2.
  • the sealing means can include a circumferential flange on a side surface of the connection block 24 and a seal, such as a O-ring, placed on a surface of the circumferential flange that faces the inner surface of the housing 3. The circumferential flange presses the seal tightly against the inner surface of the housing 3.
  • coolant ports 33, 34 and the corresponding open channels 38, 39 can be provided on different shells of the housing 3.

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)
EP17461602.9A 2017-09-14 2017-09-14 Heat exchanger assembly Active EP3457068B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP17461602.9A EP3457068B1 (en) 2017-09-14 2017-09-14 Heat exchanger assembly
PL17461602T PL3457068T3 (pl) 2017-09-14 2017-09-14 Zespół wymiennika ciepła
EP18461522.7A EP3457069B1 (en) 2017-09-14 2018-02-26 A heat exchanger
CN201820683966.3U CN209326434U (zh) 2017-09-14 2018-05-09 热交换器组件
PCT/EP2018/074936 WO2019053213A1 (en) 2017-09-14 2018-09-14 HEAT EXCHANGER ASSEMBLY

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17461602.9A EP3457068B1 (en) 2017-09-14 2017-09-14 Heat exchanger assembly

Publications (2)

Publication Number Publication Date
EP3457068A1 EP3457068A1 (en) 2019-03-20
EP3457068B1 true EP3457068B1 (en) 2021-05-12

Family

ID=59887183

Family Applications (2)

Application Number Title Priority Date Filing Date
EP17461602.9A Active EP3457068B1 (en) 2017-09-14 2017-09-14 Heat exchanger assembly
EP18461522.7A Active EP3457069B1 (en) 2017-09-14 2018-02-26 A heat exchanger

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP18461522.7A Active EP3457069B1 (en) 2017-09-14 2018-02-26 A heat exchanger

Country Status (4)

Country Link
EP (2) EP3457068B1 (pl)
CN (1) CN209326434U (pl)
PL (1) PL3457068T3 (pl)
WO (1) WO2019053213A1 (pl)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7259287B2 (ja) * 2018-11-26 2023-04-18 株式会社デンソー 熱交換器
US20230032094A1 (en) * 2019-12-12 2023-02-02 Zhejiang Sanhua Automotive Components Co., Ltd. Heat exchanger and assembly method therefor

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2924490A1 (fr) * 2007-11-29 2009-06-05 Valeo Systemes Thermiques Condenseur pour circuit de climatisation avec partie de sous-refroidissement
FR2950682B1 (fr) * 2009-09-30 2012-06-01 Valeo Systemes Thermiques Condenseur pour vehicule automobile a integration amelioree
FR2962199B1 (fr) * 2010-06-30 2012-09-21 Valeo Systemes Thermiques Condenseur, notamment pour systeme de climatisation d'un vehicule automobile.
BR102013017095A2 (pt) * 2013-07-02 2015-06-30 Mahle Metal Leve Sa Trocador de calor para alimentação de combustível em um motor de combustão interna
DE102014202466A1 (de) * 2014-02-11 2015-08-13 MAHLE Behr GmbH & Co. KG Ladeluftkühler für eine Frischluftanlage einer Brennkraftmaschine
DE102015111393A1 (de) * 2014-10-16 2016-04-21 Halla Visteon Climate Control Corporation Vorrichtung zur Wärmeübertragung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
CN209326434U (zh) 2019-08-30
EP3457069B1 (en) 2020-04-15
EP3457068A1 (en) 2019-03-20
EP3457069A1 (en) 2019-03-20
WO2019053213A1 (en) 2019-03-21
PL3457068T3 (pl) 2022-02-07

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