EP3936805A1 - Insert externe de raidissement d'en-tête - Google Patents

Insert externe de raidissement d'en-tête Download PDF

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Publication number
EP3936805A1
EP3936805A1 EP20461543.9A EP20461543A EP3936805A1 EP 3936805 A1 EP3936805 A1 EP 3936805A1 EP 20461543 A EP20461543 A EP 20461543A EP 3936805 A1 EP3936805 A1 EP 3936805A1
Authority
EP
European Patent Office
Prior art keywords
header
peripheral walls
tank assembly
apertures
reinforcement insert
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.)
Withdrawn
Application number
EP20461543.9A
Other languages
German (de)
English (en)
Inventor
Damian PAWLAK
Michal FAJKIS
Marek MACHNICKI
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 EP20461543.9A priority Critical patent/EP3936805A1/fr
Publication of EP3936805A1 publication Critical patent/EP3936805A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28B—STEAM OR VAPOUR CONDENSERS
    • F28B1/00—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser
    • 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
    • F28D7/0008—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 for one medium being in heat conductive contact with the conduits for the other medium
    • F28D7/0025—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 for one medium being in heat conductive contact with the conduits for the other medium the conduits for one medium or the conduits for both media being flat tubes or arrays of tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
    • F28F9/0221—Header boxes or end plates formed by stacked 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
    • F28F2225/00—Reinforcing means
    • F28F2225/08—Reinforcing means for header boxes

Definitions

  • the present invention relates to a header-tank assembly, more particularly, the present invention relates to a reinforcement insert for a header-tank assembly of a heat exchanger.
  • the at least one header tank assembly includes a header and a tank that are crimped to each other to form an enclosure for receiving and holding a first heat exchange fluid therein.
  • the at least one header-tank assembly is in fluid communication with a plurality of heat exchange tubes.
  • the header includes a plurality of apertures to receive heat exchange tubes and configure fluid communication between the enclosure formed by the at least one header-tank assembly and the plurality of heat exchange tubes.
  • a first header tank assembly distributes the first heat exchange fluid to the plurality of heat exchange tubes and the second header tank assembly collects the first heat exchange fluid from the plurality of heat exchange tubes.
  • a single header-tank assembly with partition dividing tank interior can be disposed at one side of the heat exchange tubes to configure I-flow through the heat exchange tubes.
  • the heat exchange tubes are constantly in contact with the first heat exchange fluid flowing there through, the heat exchange tubes are subjected to thermal expansion. Due to thermal expansion of the heat exchange tubes, the connections between the heat exchange tubes and apertures formed on the header for receiving the heat exchange tubes are subjected to thermal shock i.e. thermal stresses. The thermal stresses are detrimental for the connection between the heat exchange tubes and header as they may cause leakage and mechanical failures, thereby reducing the service life, efficiency and performance of the heat exchanger.
  • connection between the header and the heat exchange tubes possess thermal shock robustness, i.e. the connection should be able to withstand high thermal stresses.
  • One way of improving thermal shock robustness of the connection between the heat exchange tubes and the header is to enhance strength of the connection by selecting appropriate material of heat exchange tubes and the header that can withstand thermal stresses.
  • such materials are expensive and increase the overall cost of the heat exchanger.
  • Other way of improving thermal shock robustness by enhancing strength of the connection is to increase material thickness of the heat exchange tubes at the interface between the heat exchange tubes and the header.
  • increasing material thickness of the heat exchange tubes at the interface increases internal coolant pressure drop at entrance of the heat exchange tubes, thereby hindering coolant flow through the heat exchange tubes and deteriorating efficiency and performance of the heat exchanger.
  • the reinforcement insert 1 secured to a header 2 in an aligned arrangement as illustrated in FIG. 1 .
  • the reinforcement insert 1 includes a first face plate and a plurality of first apertures 1a formed on the first face plate.
  • the header 2 includes a second face plate and a plurality of second apertures 2a formed on the second face plate that are corresponding to the plurality of first apertures 1a formed on the first face plate of the reinforcement insert 1.
  • the reinforcement insert 1 and the header 2 are so arranged with respect to each other that first peripheral walls 1b disposed along the first apertures 1a and second peripheral walls 2b disposed along the second apertures 2a are aligned with respect to each other to configure tubular passages to receive the respective heat exchange tubes 3 therein.
  • the reinforcement insert 1 and the header 2 are so arranged with respect to each other that a top portion 1c of each of the first peripherals walls 1b is in contact with a base portion 2d of each of the second peripheral walls 2b.
  • the reinforcement insert 1 and the header 2 are connected to each other in the aligned configuration along the contact between the first peripheral walls 1b and second peripheral walls 2b by brazing.
  • Such configuration of the reinforcement insert 1 attempts to provide sufficient reinforcement and improve thermal shock robustness of the connection between the heat exchange tubes 3 and header 2. More specifically, referring to the FIG. 1 , the first peripheral walls 1b and the second peripheral walls 2b around the first apertures 1a and the second apertures 2a are extending in same direction. Further, contact between the top portion 1c of each of the first peripherals walls 1b and the base portion 2d of each of the second peripheral walls 2b provides surface contact for brazing between the first peripheral walls 1b and the corresponding second peripheral walls 2b. However, such surface contacts between the first peripherals walls 1b and the corresponding second peripheral walls 2b is insufficient and fails to configure a robust brazing joint between the reinforcement insert 1 and the header 2. Further, such configuration of the first peripheral walls 1b and the second peripheral wall 2b fails to provide satisfactory thermal shock robustness.
  • a header tank assembly that includes header and at least one reinforcement insert, wherein the reinforcement insert is so arranged and aligned with respect to the header that there is sufficient surface contact for forming a robust brazing joint between the reinforcement insert and the header.
  • a header tank assembly that includes a header and at least one reinforcement insert that provides thermal shock robustness to the connection between the heat exchange tubes and the header without decreasing internal coolant pressure drop.
  • a header tank assembly that prevents use of heat exchange tubes and headers of costly material and connection between the header and the heat exchange tubes thereof exhibit strength and can withstand thermal shock or thermal stresses to achieve thermal shock robustness.
  • An object of the present invention is to provide a header tank assembly that includes a header and at least one reinforcement insert that obviates the drawbacks associated with conventional unsuccessful ways to improve thermal shock robustness of the connection between heat exchanger tubes and header.
  • Another object of the present invention is to provide a header tank assembly that includes a header and at least one reinforcement insert that provides thermal shock robustness to the connection between the heat exchange tubes and the header without decreasing internal coolant pressure drop.
  • Yet another object of the present invention is to provide a header tank assembly that includes a header and at least one reinforcement insert that are so arranged with respect to each other to provide sufficient surface contact for forming a robust brazing joint between the reinforcement insert and the header.
  • Still another object of the present invention is to provide a header tank assembly that includes a header and at least one reinforcement insert that improves efficiency and performance of the heat exchanger by preventing mechanical failures caused by thermal stresses at the interface between the heat exchanger tubes and the header.
  • Another object of the present invention is to provide a header tank assembly that includes a header and at least one reinforcement insert that enhances the service life and reduces the maintenance of the heat exchanger.
  • Still another object of the present invention is to provide a header tank assembly that includes a header and at least one reinforcement insert that is easy to assemble.
  • some elements or parameters may be indexed, such as a first element and a second element.
  • this indexation is only meant to differentiate and name elements which are similar but not identical. No idea of priority should be inferred from such indexation, as these terms may be switched without betraying the invention. Additionally, this indexation does not imply any order in mounting or use of the elements of the invention.
  • a header-tank assembly is disclosed in accordance with an embodiment of the present invention.
  • the at least one header-tank assembly includes a tank, a header and at least one reinforcement insert.
  • the header includes a first face plate with a plurality of first apertures formed thereon, wherein each of the first apertures includes a first peripheral wall disposed along a periphery thereof and extending away from the header.
  • the first peripheral walls extend from a first base portion.
  • the at least one reinforcement insert includes a second face plate with at least one second aperture formed thereon complementary to the corresponding first apertures, wherein the second aperture includes a second peripheral wall disposed along at least a portion of a periphery thereof and extending away from the reinforcement insert.
  • the second peripheral wall extends from a second base portion.
  • the reinforcement insert is arranged with respect to the header such that the respective first and second base portions are connected to each other, while the first peripheral walls and the corresponding second peripheral walls are aligned and extend opposite to each other in fluid flow direction to form continuous tubular passages to receive corresponding heat exchange tubes therein.
  • the at least one reinforcement insert is complementary to at least a portion of the header.
  • the header tank assembly includes a multiple spaced apart reinforcement inserts connected to the header, the second face plate of each of the reinforcement inserts includes different number of the second apertures formed thereon.
  • the header tank assembly includes a pair of reinforcement inserts that are disposed at extreme ends of the header and connected to the header.
  • the header tank assembly includes a single reinforcement insert is disposed with respect to, extending and connected along length of the header.
  • the at least one reinforcement insert includes a pair of side rails disposed along longitudinal sides thereof.
  • the pair of side rails are complementary to and secured to longitudinal sides of the header.
  • first peripheral walls and the corresponding second peripheral walls are of same height.
  • first peripheral walls and the corresponding second peripheral walls are of different heights
  • ratio of heights of the first peripheral walls and the corresponding second peripheral walls is in the range of 4:1 to 1:4.
  • the second peripheral walls extend along entire periphery of the respective second apertures.
  • the second peripheral walls extend along extreme ends of the respective second apertures.
  • the heat exchanger includes the header-tank assembly as disclosed hereinabove.
  • a header tank assembly is disclosed in accordance with an embodiment of the present invention.
  • Each header-tank assembly includes a tank, a header and at least one reinforcement insert.
  • the header includes a plurality of first apertures formed on a first face plate of the header, wherein each of the first apertures includes a first peripheral wall disposed along a periphery thereof and extending away from the header.
  • the first peripheral wall is extending from a first base portion.
  • the at least one reinforcement insert includes a plurality of second apertures complementary to the corresponding first apertures.
  • the second apertures are configured on a second face plate of the at least one reinforcement insert, wherein each of the second apertures includes a second peripheral wall disposed along at least a portion of a periphery thereof and extending away from the reinforcement insert.
  • the second peripheral wall is extending from a second base portion.
  • the at least one reinforcement insert is arranged with respect to the header such that the respective first and second base portions are connected to each other, while the first peripheral walls and the corresponding second peripheral walls are aligned and extend opposite to each other in fluid flow direction.
  • the first and the second peripheral walls connected to each other in aligned configuration form continuous tubular passages to receive corresponding heat exchange tubes therein.
  • Such configuration of the heat exchanger with header and at least one reinforcement insert connected to each other in an aligned manner provides thermal shock robustness to the connection between heat exchange tubes and the header without decreasing internal coolant pressure drop at the entrance of the heat exchange tubes. Further, such configuration of the heat exchanger with header and at least one reinforcement insert connected to each other in an aligned manner provides sufficient contact for forming a robust brazing connection between the header and the reinforcement insert.
  • FIG. 1 illustrates a sectional view depicting conventional arrangement of a reinforcement insert 1 and a header 2 of a heat exchanger arranged with respect to each other.
  • the arrangement is aimed at improving thermal shock robustness of the connection between the heat exchange tubes 3 and the header 2 by using reinforcement insert 1 secured to the header 2 in an aligned arrangement as illustrated in FIG. 1 .
  • the reinforcement insert 1 includes a first face plate and a plurality of first apertures 1a formed on the first face plate.
  • the header 2 includes a second face plate and a plurality of second apertures 2a formed on the second face plate that are corresponding to the plurality of first apertures 1a formed on the first face plate of the reinforcement insert 1.
  • the reinforcement insert 1 and the header 2 are so arranged with respect to each other that first peripheral walls 1b disposed along the first apertures 1a and second peripheral walls 2b disposed along the second apertures 2a are aligned with respect to each other to configure tubular passages to receive the respective heat exchange tubes 3 therein.
  • the reinforcement insert 1 and the header 2 are so arranged with respect to each other that a top portion 1c of each of the first peripherals walls 1b is in contact with a base portion 2d of each of the second peripheral walls 2b.
  • the reinforcement insert 1 and the header 2 are securely connected to each other in the aligned configuration along the contact between the first peripheral walls 1b and the second peripheral walls 2b by brazing.
  • Such configuration of the reinforcement insert 1 tries to provide sufficient reinforcement and is aimed at improving thermal shock robustness of the connection between the heat exchange tubes 3 and header 2. More specifically, referring to the FIG. 1 , the first peripheral walls 1b and the second peripheral walls 2b around the first apertures 1a and the second apertures 2a are extending in same direction. Further, contact between the top portion 1c of each of the first peripherals walls 1b and the base portion 2d of each of the second peripheral walls 2b provides surface contact for brazing between the first peripheral walls 1b and the corresponding second peripheral walls 2b. However, such surface contacts between the first peripherals walls 1b and the corresponding second peripheral walls 2b is insufficient and fails to configure a robust brazing joint between the reinforcement insert 1 and the header 2. Further, such configuration of the first peripheral walls 1b and the second peripheral wall 2b fails to provide thermal shock robustness.
  • FIG. 2 illustrates a heat exchanger 200 in accordance with an embodiment of the present invention.
  • the heat exchanger 200 includes at least one header-tank assembly 100.
  • the at least one header tank assembly 100 includes a tank 110 and a header 120a that are crimped to each other to form an enclosure for receiving and holding a first heat exchange fluid therein.
  • the at least one header-tank assembly 100 is in fluid communication with a plurality of heat exchange tubes 130.
  • the header 120a includes a plurality of apertures to receive the heat exchange tubes 130 and configure fluid communication between the enclosure formed by the at least one header-tank assembly 100 and the plurality of heat exchange tubes 130.
  • the two header tank assemblies are connected by the plurality of heat exchange tubes 130.
  • a first header tank assembly distributes the first heat exchange fluid to the plurality of heat exchange tubes 130 and the second header tank assembly collects the first heat exchange fluid from the plurality of heat exchange tubes 130.
  • the first heat exchange fluid rejects heat to a second heat exchange fluid flowing across the heat exchanger tubes 130 and gets cooled in the process.
  • the second heat exchange fluid is for example air, while the first heat exchange fluid may be a coolant.
  • FIG. 3a illustrates a schematic representation of the header tank assembly 100 and a reinforcement insert 120b of the heat exchanger 200 in accordance with an embodiment of the present invention. There is also depicted a schematic representation of the header 120a and the reinforcement insert 120b in the assembled configuration. In case of the heat exchanger 200, the reinforcement insert 120b is arranged, i.e. aligned and secured with respect to the header 120a as illustrated in a sectional view depicted in FIG. 3b .
  • FIG 4a illustrates an isometric view of the header 120a of the header tank assembly 100.
  • the header 120a includes a first face plate 120 with a plurality of first apertures 122a configured thereon.
  • the first apertures 122a are uniformly spaced with respect to each other.
  • the first apertures 122a are formed on the first face plate 120 of the header 120a by stamping operation.
  • the present invention is not limited to any particular method of forming the first apertures on the first face plate of the header or the placement and distribution of the first apertures on the first face plate of the header.
  • Each of the first apertures 122a includes a first peripheral wall 124a disposed along a periphery thereof and extending away from the header 120a.
  • the header 120a includes crimping tabs disposed along longitudinal sides 127a and lateral sides 129a thereof.
  • FIG. 4b illustrates an exploded view of the reinforcement inserts 120b and the header 120a to which the reinforcement inserts 120b are connected to.
  • FIG. 4c illustrates an assembled view of the reinforcement inserts 120b connected to the header 120a.
  • the at least one reinforcement insert 120b is disposed with respect to the header 120a and is complementary to at least a portion of the header 120a.
  • complementary it is meant that at least one dimension, particularly, width of the at least one reinforcement insert 120b matches with width of the corresponding header 120a. More specifically, as the at least one reinforcement insert 120b is complementary to the header 120a, the reinforcement insert 120b fits over the header 120a.
  • the at least one reinforcement insert 120b includes a second face plate 140 with a plurality of second apertures 122b configured thereon.
  • the plurality of second apertures 122b are complementary to the corresponding first apertures 122a. More specifically, due to the at least one reinforcement insert 120b being complementary to the header 120a, the second apertures 122b formed on the at least one reinforcement insert 120b are aligned with the first apertures 122a formed on the header 120a without any effort.
  • Each of the second apertures 122b includes a second peripheral wall 124b disposed along at least a portion of a periphery thereof and extending away from the reinforcement insert 120b. Generally, the second peripheral walls 124b extend along entire periphery of the respective second apertures 122b as illustrated in FIG. 5a . Alternatively, the second peripheral walls 124b extend only along extreme ends of the respective second apertures 122b as illustrated in FIG.
  • the at least one reinforcement insert 120b may further include a pair of side rails 127b disposed along longitudinal sides thereof.
  • the pair of side rails 127b of the at least one reinforcement insert 120b are complementary to and secured to the longitudinal sides 127a of the header 120a for positioning of the at least one reinforcement insert 120b with respect to the header 120a.
  • the side rails 127b further facilitate in connecting and positioning the reinforcement inserts 120b in case there are multiple reinforcement inserts.
  • multiple reinforcement inserts 120b are placed with respect the header 120a.
  • the multiple reinforcement inserts 120b are spaced apart from each other with some gap there between, accordingly, when such multiple reinforcement inserts 120b are arranged with respect to the header 120a, there are portions of the header 120a that is not reinforced by the reinforcement inserts 120b. Further, the number and spacing between the second apertures 122b formed on each of the reinforcement inserts 120b is different from the number and spacing of the second apertures 122b formed on the other reinforcement insert 120b. Alternatively, a pair of reinforcement inserts 120b are disposed at extreme ends of the header 120a. In accordance with another embodiment, a single reinforcement insert 120b is disposed with respect to and extends along length of the header 120a. In some cases as illustrated in the FIG. 6a and FIG.
  • the second face plate 140 of the reinforcement insert 120b includes a single second aperture 122b formed thereon that is complementary to one of the corresponding first apertures 122a.
  • the single second aperture 122b formed on the second face plate 140 receives a single heat exchange tube 130 therein.
  • the single second aperture 122b formed on the second face plate 140 includes the second peripheral wall 124b disposed along at least a portion of a periphery thereof and extending away from the reinforcement insert 120b.
  • the second peripheral wall 124b extends from a second base portion 126b.
  • the reinforcement inserts 120b are generally disposed at those regions of the header 120a that are more likely subjected to the thermal stresses and are more prone to failure due to the thermal stresses.
  • the at least one reinforcement insert 120b is so arranged with respect to the header 120a such that the first peripheral walls 124a and the corresponding second peripheral walls 124b are aligned and connected to each other at the respective first and the second base portions 126a and 126b thereof and extend opposite to each other in fluid flow direction. Further, during the brazing between the header 120a and the reinforcement insert 120b, the first faceplate 120 of the header 120a and the second face plate 140 of the reinforcement insert 120b are maintained pressed against each other using jigs and fixtures, specially clips. The pressing of the first faceplate 120 against the second face plate 140 ensures sufficient contact between the header 120a and the reinforcement insert 120b, thereby leading to robust brazing joint at the first and the second base portions 126a and 126b.
  • the first peripheral walls 124a and the corresponding second peripheral walls 124b are aligned and connected to each other to form continuous tubular passages, when the header 120a and the at least one reinforcement insert 120b are connected to each other. More specifically, the at least one reinforcement insert 120b and the header 120a are so arranged with respect to each other that the first base portions 126a of the first peripheral walls 124a are abutting against the second base portions 126b of the second peripheral walls 124b. As the first face plate 120 of the header 120a and the second face plate 140 of the at least one reinforcement insert 120b are having curved profiles that are complementary to each other.
  • first base portions 126a are connected to and extending from the first face-plate 120 and hence are broader than first top portions 128a that form free ends of the respective first peripheral walls 124a.
  • second base portions 126b are connected to extending from the second face-plate 140 and hence are broader than second top portions 128b that form free ends of the respective second peripheral walls 124b.
  • first peripheral walls 124a and the second peripheral walls 124b are connected to each other along the first base portions 126a and the second base portions 126b that both are broadest compared to any other cross section along the length of the thereof. Accordingly, sufficient contact surface is available for forming brazing connections between the first peripheral walls 124a and the second peripheral walls 124b.
  • the continuous tubular passages receive the corresponding heat exchange tubes 130 therein. Such configuration provides improved thermal stress robustness to the connection between the heat exchange tubes 130 and the header 120a without decreasing internal coolant pressure drop at the entrance to the heat exchange tubes 130.
  • the header 120a for receiving the heat exchange tubes 130 are able to withstand thermal stresses to which the connection is subjected to. This is due to the fact that the heat exchange tubes 130 are also received and supported by the first peripheral walls 124a and the second peripheral walls 124b as the heat exchange tubes 130 are received in the first apertures 122a. With such configuration, the second peripheral walls 124b bears some of the thermal stresses and the stresses at the connection between the heat exchange tubes 130 and the first apertures 122a is reduced.
  • the reinforcement inserts 120b are so formed that there is smooth change of cross section of the inserted heat exchange tubes 130 and lower notch coefficient at the connection between the heat exchange tubes 130 and the header 120a. More specifically, in order to avoid stress concentration at the connection between the heat exchange tubes 130 and the reinforcement inserts 120b, sufficient contact is there between the peripheral walls 124b around the second apertures 122b and the heat exchange tubes 130. Such configuration of the reinforcement insert lead to lower stress accumulation at the connection between the heat exchange tubes 130 and the header 120a.
  • the heat exchange tubes 130 are first inserted into the second apertures 122b formed on the second face plate 140 of the reinforcement insert 120b. Thereafter the reinforcement inserts 120b with the heat exchange tubes 130 assembled thereto are connected to the header 120a.
  • Such assembly process ensures tight fit connection between the heat exchange tubes 130 and the first apertures 122a formed on the first face plate 120 of the header 120a and the second apertures 122b formed on the second face plate 140 of the reinforcement insert 120b.
  • the first peripheral walls 124a and the corresponding second peripheral walls 124b are of same height. However, based on test specification and heat exchanger operating conditions, there can be technical advantages of the first peripheral walls 124a and the corresponding second peripheral walls 124b being of different heights. More specifically, with the first peripheral walls 124a and the corresponding second peripheral walls 124b of different heights, forces are evenly distributed along entire circumference of the heat exchange tubes 130, thereby resulting in improved heat exchange tube operation and extended service life of the heat exchanger 200.
  • the reinforcement inserts 120b provides reinforcement to the heat exchange tubes 130 at critical areas and improve the peripheral stress distribution of the heat exchanger tubes 130 at the heat exchange area.
  • the height of the first peripheral walls 124a and the corresponding second peripheral walls 124b is determined.
  • ratio of heights of the first peripheral walls 124a and the corresponding second peripheral walls 124b is in the range of 4:1 to 1:4. More specifically, the first peripheral wall 124a can be longer or shorter than the second peripheral wall 124b.
  • header-tank assembly comprises a tank, a header and at least one reinforcement insert.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP20461543.9A 2020-07-07 2020-07-07 Insert externe de raidissement d'en-tête Withdrawn EP3936805A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20461543.9A EP3936805A1 (fr) 2020-07-07 2020-07-07 Insert externe de raidissement d'en-tête

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20461543.9A EP3936805A1 (fr) 2020-07-07 2020-07-07 Insert externe de raidissement d'en-tête

Publications (1)

Publication Number Publication Date
EP3936805A1 true EP3936805A1 (fr) 2022-01-12

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EP20461543.9A Withdrawn EP3936805A1 (fr) 2020-07-07 2020-07-07 Insert externe de raidissement d'en-tête

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EP (1) EP3936805A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2742528A1 (fr) * 1995-12-13 1997-06-20 Valeo Thermique Moteur Sa Echangeur de chaleur a plaque collectrice renforcee, notamment pour vehicule automobile
KR20040013873A (ko) * 2002-08-09 2004-02-14 현대자동차주식회사 라디에이터 코어의 크랙 방지 구조
EP1462753A2 (fr) * 2003-03-24 2004-09-29 Calsonic Kansei Corporation Faisceau d'échangeur de chaleur
JP2006162194A (ja) * 2004-12-09 2006-06-22 Denso Corp 熱交換器
KR100737164B1 (ko) * 2006-05-19 2007-07-06 주식회사 두원공조 고압 열교환기의 헤더
KR20150070772A (ko) * 2013-12-17 2015-06-25 한라비스테온공조 주식회사 열교환기
WO2015197596A1 (fr) * 2014-06-27 2015-12-30 Titanx Engine Cooling Holding Ab Échangeur de chaleur ayant une plaque de collecteur renforcée

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2742528A1 (fr) * 1995-12-13 1997-06-20 Valeo Thermique Moteur Sa Echangeur de chaleur a plaque collectrice renforcee, notamment pour vehicule automobile
KR20040013873A (ko) * 2002-08-09 2004-02-14 현대자동차주식회사 라디에이터 코어의 크랙 방지 구조
EP1462753A2 (fr) * 2003-03-24 2004-09-29 Calsonic Kansei Corporation Faisceau d'échangeur de chaleur
JP2006162194A (ja) * 2004-12-09 2006-06-22 Denso Corp 熱交換器
KR100737164B1 (ko) * 2006-05-19 2007-07-06 주식회사 두원공조 고압 열교환기의 헤더
KR20150070772A (ko) * 2013-12-17 2015-06-25 한라비스테온공조 주식회사 열교환기
WO2015197596A1 (fr) * 2014-06-27 2015-12-30 Titanx Engine Cooling Holding Ab Échangeur de chaleur ayant une plaque de collecteur renforcée

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