WO2019174734A1 - Ensemble d'échangeur de chaleur - Google Patents

Ensemble d'échangeur de chaleur Download PDF

Info

Publication number
WO2019174734A1
WO2019174734A1 PCT/EP2018/056535 EP2018056535W WO2019174734A1 WO 2019174734 A1 WO2019174734 A1 WO 2019174734A1 EP 2018056535 W EP2018056535 W EP 2018056535W WO 2019174734 A1 WO2019174734 A1 WO 2019174734A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat exchanger
exchanger assembly
filler
housing
outermost
Prior art date
Application number
PCT/EP2018/056535
Other languages
English (en)
Inventor
Radoslaw Jonczyk
Maciej KLUSEK
Dariusz Potok
Dawid Szostek
Original Assignee
Valeo Systemes Thermiques
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 Systemes Thermiques filed Critical Valeo Systemes Thermiques
Priority to PCT/EP2018/056535 priority Critical patent/WO2019174734A1/fr
Publication of WO2019174734A1 publication Critical patent/WO2019174734A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
    • F02B29/04—Cooling of air intake supply
    • F02B29/045—Constructional details of the heat exchangers, e.g. pipes, plates, ribs, insulation, materials, or manufacturing and assembly
    • F02B29/0462—Liquid cooled heat exchangers
    • 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
    • F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
    • 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
    • F28F9/005—Other auxiliary members within casings, e.g. internal filling means or sealing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • 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
    • F28F9/0224—Header boxes formed by sealing end plates into covers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
    • F28D2021/0082—Charged air coolers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • the present invention relates to a heat exchanger assembly, especially a water charge air cooler for a motor vehicle .
  • the prior art heat exchanger assembly comprises: a housing; a core situated in the housing and comprising a plurality of spaced-apart flow ducts, which in turn include two outermost flow ducts; two headers placed on the core at open ends of the flow ducts; and inlet and outlet conduits covering the headers and closing the housing.
  • a through passage/space for the flow of a coolant exists between the housing and the outermost flow ducts.
  • a series of coolant turbulators can be provided between the flow ducts.
  • Two additional coolant turbulators can be arranged between an inner wall of the housing and each of the outermost flow ducts, however these turbulators do not obstruct the flow of the coolant as there is always some passage for the coolant between inlet and outlet ports of the housing. All components of the assembly are connected to each other by brazing. In particular, the flow ducts are connected at their open ends to the headers .
  • the aim of the present invention is to eliminate the drawbacks of the prior art solutions described above, especially by increasing the fatigue strength of the heat exchanger assembly. This aim is achieved by a heat exchanger assembly as defined in the independent claim.
  • a heat exchanger assembly comprises: a housing and a core situated inside the housing, the core comprising a plurality of flow ducts, the flow ducts each comprising two wide sides, the flow ducts including two outermost flow ducts.
  • the heat exchanger assembly further comprises at least one filler.
  • the at least one filler is placed between and is in sealed contact with the housing and the wide side of at least one outermost flow duct so that the at least one filler covers at least 70% of the wide side of the at least one outermost flow duct, which is in contact with the at least one filler.
  • the at least one filler is able to prevent a coolant from flowing in a space defined between the housing and the at least one outermost flow duct and filled with the at least one filler.
  • the at least one filler contacts both the housing and the at least one outermost flow duct and is tightly held between them and, therefore, there is a limited passage for the coolant, from the inlet port to the outlet port of the housing.
  • the at least one filler has to cover the surface area of the wide side of the at least one outermost duct as much as possible.
  • the at least one filler covers at least 70%, preferably at least 80% of the wide side of the at least one outermost flow duct on which the at least one filler is placed.
  • the at least one outermost flow duct is tightly associated by the at least one filler with an inner wall of the housing, what reduces the thermal expansion of the at least one outermost flow duct. This in turn reduces stresses at the junction between the headers and the at least one outermost flow duct and equalizes stresses in the housing and the at least one outermost flow duct. Hence, the fatigue strength of the at least one outermost flow duct, under the influence of violent changes of temperature, is increased. The risk of cracking at the junction between the header and the at least one outermost flow duct is greatly reduced and the heat exchanger assembly of the present invention can work for a bigger number of working cycles.
  • the at least one filler is connected permanently to the housing and the at least one outermost flow duct, whereby the fatigue strength of the at least one flow duct can be increased even more.
  • Fig. 1 shows a perspective exploded view of a heat exchanger assembly of the present invention
  • Fig. 2 shows a perspective exploded view of a core used in the heat exchanger assembly of the present invention
  • Fig. 3 shows a partial cut-away view of a detail of the heat exchanger assembly of the present invention.
  • a heat exchanger assembly according to the present invention is indicated as a whole by numeral reference 1.
  • the heat exchanger assembly 1 comprises a housing 2, which in the embodiment shown in the figures is made of two separate half-shells, i.e. a first half-shell 21 and a second half-shell 22.
  • the housing 2 can consist of any appropriate number of shells and/or plates, e.g. three, four, etc.
  • the housing 2 includes inlet and outlet ports 23, 24 for a coolant, in particular a cooling liquid, as well as a degassing port 25, which serves to remove the air that may be trapped in the coolant.
  • a core 3 is placed inside the housing 2.
  • the core 3 includes a plurality of spaced-apart flat hollow flow ducts 31, i.e. there is some free space between two adjacent flow ducts 31 and the coolant flows through these free spaces.
  • the flow ducts are flow tubes, as represented in the figures.
  • Flow ducts may be made of plates (not shown) .
  • the core 3 further includes a plurality of coolant turbulators 32 arranged between the flow ducts 31.
  • one coolant turbulator 32 is situated between two adjacent flow ducts 31.
  • the coolant turbulators 32 function to turn a laminar flow of the coolant into a turbulent one and, in turn, to increase the heat exchange efficiency.
  • the coolant turbulators 32 can be omitted, if necessary.
  • the flow ducts 31 are hollow and a medium to be cooled down, for example a fluid, such as a gas, flows there through.
  • the flow ducts 31 have two wide sides, two narrow sides and two open ends.
  • the flow ducts 31 are arranged with their wide sides parallel to each other.
  • the flow ducts 31 can be provided internally with a series of air fins .
  • the heat exchanger assembly 1 further comprises two headers 4.
  • the headers 4 are located on and connected to two opposite ends of the core 3, i.e. the ones presenting the open ends of the flow ducts 31.
  • each of the headers 4 is, on its entire perimeter, in fluid-tight contact with the housing 2.
  • the header 4 comprises a plurality of through slots 42 so that the open ends of the flow ducts 31 fit into the slots 42.
  • the number of the through slots 42 is equal to the number of the flow ducts 31 and the shape of the slots 42 corresponds to the shape of the cross-section of the open ends of the flow ducts 31.
  • the heat exchanger assembly 1 comprises inlet and outlet conduits 5a, 5b for the medium to be cooled down.
  • the inlet conduit 5a receives a hot medium from a motor vehicle and transfers it to the core 3 where it can be cooled down, whereas the outlet conduit 5b delivers a medium of a lower temperature to remaining parts of the motor vehicle.
  • the inlet and outlet conduits 5a, 5b cover the headers 4 and close the housing 2.
  • the inlet and outlet conduits 5a, 5b close two openings in the housing 2, which are intended for the flow of the medium to be cooled down, and make the housing 2 complete.
  • the inlet and outlet conduits 5a, 5b are part of the housing 2 itself.
  • a seal 6 may be placed between each of the headers 4 and each of the inlet and outlet conduits 5a, 5b.
  • the headers 4 comprise a plurality of teeth 41, which are bended over protruding parts of the inlet and outlet conduits 5a, 5b in order to make the assembly even more rigid and resistant.
  • All components of the heat exchanger assembly 1 mentioned above, except for the seal 6, can be made of materials suitable for brazing, for example aluminum, steel and their alloys. In order to obtain the proper fluid tightness of the assembly all components thereof are connected to each other by brazing.
  • the heat exchanger assembly 1 also comprises at least one filler 7 arranged between an inner wall of the housing 2 and at least one outermost flow duct 31a, 31b of the core 3.
  • the heat exchanger assembly 1 comprises two fillers 7 - each filler 7 is arranged between the housing 2 and each of two outermost flow ducts 31a, 31b.
  • Each filler 7 is in sealed contact with the inner wall of the housing 2 and the wide side of one of two outermost flow ducts 31a, 31b of the core 3.
  • the fillers 7 fill a space between the housing 2 and the outermost flow ducts 31a, 31b of the core 3 and are strongly and tightly held between the inner wall of the housing 2 and the outermost flow ducts 31a, 31b of the core 3, i.e. there is no clearance between the housing 2, the fillers 7 and the outermost flow ducts 31, 31b.
  • the fillers 7 cover at least 70%, preferably at least 80 % of the surface area of the wide sides of the outermost flow ducts, which they are in contact with and/or placed on .
  • the heat exchanger assembly 1 comprises a coolant channel or free space S between the header 4, the outermost flow duct 31a, 31b and the filler 7 and the coolant is able to flow through this free space S.
  • the free space S can be present adjacent to each end of each filler 7 used. It in turn means that if two fillers 7 are employed there are four free spaces 7.
  • the fillers 7 can be in the form of a plate.
  • the plate can be solid. Nevertheless, the plate can also be provided with undercuts, openings or edges with special shapes, if desired .
  • the fillers 7 can be made of a grid, a honeycomb structure or any other structured component. In any case it should be noted that it is important to orientate the fillers 7 within the heat exchanger assembly 1 in such a way that the flow of the coolant from the inlet port 24 to the outlet port 25 of the housing 2 and through a space defined between the housing 2 and the outermost flow ducts 31a, 31b, i.e. the precise space filled with and occupied by the fillers 7, is prevented and the fillers 7 are tightly held between surrounding components of the assembly. In other words, the coolant cannot flow through the fillers 7 themselves .
  • the fillers 7 are made of materials suitable for brazing, for example aluminum and its alloys.
  • the fillers 7 can be permanently connected to the housing 2 and the wide sides of the outermost flow ducts 31a, 31b by brazing.
  • another methods of connection can be employed.
  • the fillers 7 can be glued to the surrounding components of the heat exchanger assembly 1 or even the fillers 7 can be simply held tightly between the housing and the outermost flow ducts 31a, 31b, as stated above, so that any relative movement between these parts is prevented and the housing 2, the fillers 7 and the outermost flow ducts 31a, 31b are tightly associated with each other.
  • the fillers 7 can be made of materials other than those suitable for brazing, for example plastic materials.
  • the fillers 7 can be made by any suitable manufacturing process, e.g. stamping, machining, casting or injection. As stated above, the appropriate materials for the fillers 7 include a full range of materials, such as aluminum, steel, their alloys, ferric materials, composites or plastics materials.
  • the fillers 7 rigidly connect the outermost flow ducts 31a, 31b to the housing 2 to equalize the stress level between the outermost flow ducts 31a, 31b and the housing
  • the aim to prevent a differential thermal expansion between the housing 2 and the outermost flow ducts 31a, 31b is achieved by the fillers 7 of the present invention.

Landscapes

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

Abstract

La présente invention concerne un ensemble d'échangeur de chaleur (1) comprenant un boîtier (2) et un noyau (3) situé à l'intérieur du boîtier (2). Le noyau (3) comprend une pluralité de conduits d'écoulement (31) et chacun des conduits d'écoulement (31) comprend deux côtés larges. Les conduits d'écoulement (31) comprennent deux conduits d'écoulement extérieurs (31a, 31b). L'ensemble d'échangeur de chaleur (1) comprend en outre au moins une charge (7) placée entre et étant en contact étanche avec le boîtier (2) et le côté large d'au moins un conduit d'écoulement extérieur (31a, 31b). L'au moins une charge (7) recouvre au moins 70 % du côté large de l'au moins un conduit d'écoulement extérieur (31a, 31b), qui est en contact avec l'au moins une charge (7). L'au moins une charge (7) peut empêcher un fluide de refroidissement de s'écouler dans un espace défini entre le boîtier (2) et l'au moins un conduit d'écoulement extérieur (31a, 31b) et rempli avec l'au moins une charge (7).
PCT/EP2018/056535 2018-03-15 2018-03-15 Ensemble d'échangeur de chaleur WO2019174734A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2018/056535 WO2019174734A1 (fr) 2018-03-15 2018-03-15 Ensemble d'échangeur de chaleur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2018/056535 WO2019174734A1 (fr) 2018-03-15 2018-03-15 Ensemble d'échangeur de chaleur

Publications (1)

Publication Number Publication Date
WO2019174734A1 true WO2019174734A1 (fr) 2019-09-19

Family

ID=62002111

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2018/056535 WO2019174734A1 (fr) 2018-03-15 2018-03-15 Ensemble d'échangeur de chaleur

Country Status (1)

Country Link
WO (1) WO2019174734A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4382846A1 (fr) * 2022-12-05 2024-06-12 Valeo Systemes Thermiques Echangeur de chaleur pour vehicules

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1636533A2 (fr) * 2003-06-24 2006-03-22 Valeo Thermique Moteur Echangeur de chaleur comportant un boitier et un faisceau en tole d'aluminium assembles par brasage
US20090014153A1 (en) * 2007-07-11 2009-01-15 Eduardo Alberto Nunes Mendes Pimentel Heat exchanger arrangement
DE102009025282A1 (de) * 2009-06-15 2010-12-16 Behr Gmbh & Co. Kg Saugrohr mit integriertem Ladeluftkühler
DE102015011368A1 (de) * 2015-08-28 2017-03-02 Modine Manufacturing Company Wärmetauscher, dessen Herstellungsverfahren sowie ein elastisches Umfangselement

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1636533A2 (fr) * 2003-06-24 2006-03-22 Valeo Thermique Moteur Echangeur de chaleur comportant un boitier et un faisceau en tole d'aluminium assembles par brasage
US20090014153A1 (en) * 2007-07-11 2009-01-15 Eduardo Alberto Nunes Mendes Pimentel Heat exchanger arrangement
DE102009025282A1 (de) * 2009-06-15 2010-12-16 Behr Gmbh & Co. Kg Saugrohr mit integriertem Ladeluftkühler
DE102015011368A1 (de) * 2015-08-28 2017-03-02 Modine Manufacturing Company Wärmetauscher, dessen Herstellungsverfahren sowie ein elastisches Umfangselement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4382846A1 (fr) * 2022-12-05 2024-06-12 Valeo Systemes Thermiques Echangeur de chaleur pour vehicules

Similar Documents

Publication Publication Date Title
JP4775287B2 (ja) 熱交換器
JP6291474B2 (ja) 熱交換器
KR19990022246A (ko) 열 교환기
JP2015534030A (ja) 熱交換器
US11274884B2 (en) Heat exchanger module with an adapter module for direct mounting to a vehicle component
US6470963B2 (en) Heat exchanger
WO2010150878A1 (fr) Echangeur de chaleur
JP4607626B2 (ja) 効率的な熱交換器、およびそれを用いたエンジン
CN109141083B (zh) 一种应用于燃料电池的一次表面换热器
EP3561426B1 (fr) Dispositif d'échange de chaleur
JP4606786B2 (ja) 多流体熱交換器
US20090242182A1 (en) Heat Exchanger Plate
JP2010121925A (ja) 熱交換器
WO2019174734A1 (fr) Ensemble d'échangeur de chaleur
JP2984326B2 (ja) 熱交換器
WO2009121531A1 (fr) Plaque collectrice et échangeur de chaleur la comprenant
US20180328669A1 (en) Multifluid heat exchanger
EP3376147B1 (fr) Ensemble échangeur thermique
CN110431663B (zh) 热交换器
US9310135B1 (en) Configureable heat exchanger
EP3396296B1 (fr) Ensemble échangeur thermique
US3656544A (en) Heat exchanger
EP3457068B1 (fr) Ensemble échangeur thermique
US10697708B2 (en) Heat exchangers
TWM536759U (zh) 水排單元及其裝置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18718112

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18718112

Country of ref document: EP

Kind code of ref document: A1