EP2459950B1 - Heating radiator element and method and device for closing an end part of a heating radiator element - Google Patents

Heating radiator element and method and device for closing an end part of a heating radiator element Download PDF

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Publication number
EP2459950B1
EP2459950B1 EP20100754547 EP10754547A EP2459950B1 EP 2459950 B1 EP2459950 B1 EP 2459950B1 EP 20100754547 EP20100754547 EP 20100754547 EP 10754547 A EP10754547 A EP 10754547A EP 2459950 B1 EP2459950 B1 EP 2459950B1
Authority
EP
European Patent Office
Prior art keywords
plug
end part
collar
radiator element
axis
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.)
Not-in-force
Application number
EP20100754547
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2459950A1 (en
Inventor
Fabio Sassi
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.)
Fondital SpA
Original Assignee
Fondital SpA
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
Priority claimed from ITMI2009A001331A external-priority patent/IT1394988B1/it
Priority claimed from ITMI2010A000638A external-priority patent/IT1399622B1/it
Application filed by Fondital SpA filed Critical Fondital SpA
Priority to PL10754547T priority Critical patent/PL2459950T3/pl
Publication of EP2459950A1 publication Critical patent/EP2459950A1/en
Application granted granted Critical
Publication of EP2459950B1 publication Critical patent/EP2459950B1/en
Priority to HRP20150856TT priority patent/HRP20150856T1/hr
Not-in-force 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
    • 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
    • F28D1/05308—Assemblies of conduits connected side by side or with individual headers, e.g. section type 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
    • F28D1/05358—Assemblies of conduits connected side by side or with individual headers, e.g. section type 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
    • 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
    • F28D2021/0035—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for domestic or space heating, e.g. heating 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
    • F28F2220/00—Closure means, e.g. end caps on header boxes or plugs on conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/12—Fastening; Joining by methods involving deformation of the 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
    • F28F2275/00—Fastening; Joining
    • F28F2275/12—Fastening; Joining by methods involving deformation of the elements
    • F28F2275/122—Fastening; Joining by methods involving deformation of the elements by crimping, caulking or clinching

Definitions

  • the present invention relates to a heating radiator element and to a method and a device for closing an end part of a heating radiator element.
  • radiator elements typically made of aluminium, manufactured by die-casting.
  • a die-cast aluminium radiator is normally formed by a battery of elements coupled to one another to form a radiator of suitable dimensions; each element has a substantially tubular body that extends along an axis and has an end part that, for constructional requirements, is open at the bottom; the end part hence has a bottom opening set along the axis, as well as, typically, a pair of opposite lateral holes to enable connection of the element to other elements of the same type.
  • the traditional solution consists in welding a lid around a front edge of the bottom opening. This solution is not altogether satisfactory in so far as it requires execution of a weld with all the drawbacks associated thereto.
  • the solution illustrated in WO2007/138627A1 envisages that the lid is pressed radially around the front edge of the end part so as to engage around said edge; this solution presents, however, the drawback of causing considerable stresses on the end part in a radial direction and hence, above all in the case of elements with cross section that is not circular but, for example, is oval or elliptical or polygonal, is not practicable, in so far as it would lead to squeezing of the element (unless large thicknesses are resorted to, with consequent high production costs) and/or to the deformation of the lid and consequent lack of effectiveness.
  • An aim of the present invention is to provide an element of a heating radiator and a method and a device for closing an end part of an element of a heating radiator that will be free from the drawbacks of the known art highlighted above; in particular, an aim of the invention is to provide a radiator element having a bottom opening, which is closed in a simple and fully effective way also in the case of radiator elements having a body with non-circular cross section, moreover optionally making it possible to bestow on the end part of the radiator element a particular aesthetic appearance.
  • the present invention hence regards an element of a heating radiator, in particular an element provided via die-casting of aluminium, and a method and a device for closing an end part of said radiator element, as defined in basic terms in the annexed Claims 1, 10, and 12, respectively.
  • the element of a heating radiator in accordance with the invention is provided with a closing plug that is simple and fully effective and that is applied in a simple, fast, and inexpensive way, without requiring relatively long and complex operations and at the same time enabling aesthetic solutions of particular quality.
  • the invention can be easily applied also to elements having non-circular cross section (for example, oval or elliptical, polygonal, etc.).
  • Figures 1 and 2 designated as a whole by 1 is an element of a heating radiator;
  • the element 1 has a body 2 made of metal material, in particular aluminium and for example die-cast aluminium;
  • the body 2 is a substantially tubular body that comprises a main tubular portion 3, which extends longitudinally along an axis A that, with reference to the normal position of use of the element 1, is substantially vertical;
  • the element 1 is provided with an internal chamber 4 for the circulation of water, with transverse connector sleeves 5 for connection to other radiator elements and/or to a hydraulic circuit, and with a plurality of radiant fins and/or plates 6 variously connected to one another and/or to the body 2 and specifically to the main portion 3.
  • the element 1 comprises an end part 10 set at a longitudinal end 11 of the element 1, for example a bottom end (once again with reference to the normal position of use of the element 1).
  • the main portion 3 of the element 1, and hence also the end part 10 have a cross section that is substantially oval or elliptical and/or in any case elongated along a major axis B, and/or polygonal (quadrangular, rhomboidal, square, etc.), possibly with rounded sides and/or vertices.
  • the end part 10 is substantially tubular and also this extends substantially along the axis A and has a bottom opening 12 set along the axis A and substantially transverse to the axis A.
  • the end part 10 comprises a radially outer collar 18 around the opening 12, set preferably at a free end of the end part 10 and carried preferably, but not necessarily, by a flared portion 15 diverging towards the opening 12.
  • the collar 18 has a pair of opposite flat parallel faces 19 substantially orthogonal to the axis A and at least partially overlapping in axial projection; in other terms, by projecting the faces 19 on one another in a plane perpendicular to the axis A, the projections of the two faces 19 are at least partially overlapping and preferably superimposed at least on a radially outer closed continuous annular surface, or on portions of an annular surface.
  • a first face 19a is defined by an annular front edge of the collar 18; a second face 19b is defined by an annular surface opposite to said front edge. It remains understood that each of the faces 19 can be constituted either by a substantially annular continuous surface, or by two or more separate surface portions, set at an angular distance from one another about the axis A.
  • the opening 12 is closed by a plug 20, which is partially inserted in the end part 10 through the opening 12 and is provided with at least one seal ring 21 set between the plug 20 and the end part 10; in particular, the seal ring 21 is a radial seal ring set within the end part 10 and radially set between an external lateral surface 22 of the plug 20 and an internal lateral surface 23 of the end part 10.
  • the plug 20 and the opening 12 have the same shape as the cross section of the collar 18 and hence, preferably (but not necessarily), substantially oval or elliptical and/or in any case elongated along the major axis B, and/or substantially polygonal (quadrangular, rhomboidal, square, etc.), possibly with rounded sides and/or vertices.
  • the plug 20 comprises a closing portion 24, housed within the end part 10 and shaped so as to close the opening 12, and an engagement portion 25, which is substantially annular and is shaped for example as a radially external annular flange that extends from a perimetral edge of the closing portion 24 and is fitted on the outside of the end part 10 around the collar 18.
  • the plug 20 is constituted by a monolithic body (comprising both the closing portion 24 and the engagement portion 25) preferably made of sheet metal, for example steel, or aluminium.
  • the closing portion 24 of the plug 20 has a flared shape corresponding to the shape of the flared portion 15 of the end part 10.
  • the seal ring 21 for example a seal ring of an O-ring type made of elastomeric material, is fitted around the closing portion 24, possibly housed in a seat formed on the surface 22 and/or on the surface 23, and extends radially from the surface 22 towards the surface 23 so as to seal the end part 10 in a fluid-tight way.
  • the engagement portion 25 has a pair of opposite flat parallel fixing surfaces 29 facing one another and orthogonal to the axis A, which are directly in contact and axially gripped and squeezed against respective faces 19 of the collar 18.
  • a first surface 29a rests bearing upon the face 19a of the collar 18, and a second surface 29b rests bearing upon the face 19b.
  • Each of the surfaces 29 (in particular, the surface 29b) can be constituted either by a substantially annular continuous surface or by two or more separate surface portions, set at an angular distance from one another about the axis A, for example two diametrally opposite surface portions (in particular, set at opposite ends of the major axis B).
  • the engagement portion 25 further comprises a side wall 30 substantially parallel to the axis A and set about the axis A; the side wall 30 connects the two opposite fixing surfaces 29 and is set radially external around the collar 18.
  • the plug 20 is gripped against the end part 10 and mechanically coupled to the end part 10 via the fixing surfaces 29, which are forced axially against the respective faces 19 of the collar 18; the side wall 30 is not, instead, subjected to any force in a radial direction; i.e., it is essentially unloaded.
  • the engagement portion 25 comprises a pair of appendages 34, which are set at respective diametrally opposite ends of the plug 20, in particular at opposite ends of the major axis B, are substantially bent to form a C around the collar 18, and are provided with the fixing surfaces 29.
  • the plug 20 is hence engaged to the end part 10 via the two appendages 34. It remains in any case understood that the plug 20 can instead be engaged to the collar 18 via a continuous annular perimetral band, once again bent around the collar 18.
  • the plug 20 has an external front surface 35, opposite to the surface 29a, for example substantially annular.
  • the plug 20 is advantageously mounted on the element 1, for example, via a device 50, illustrated schematically in Figures 3-4 , which has precisely the purpose of closing the end part 10 of the element 1 with the plug 20.
  • the device 50 basically comprises a clamping group 51, provided with a housing seat 52 shaped for receiving an assembly 53 formed by the end part 10 and by the plug 20, which is fitted on the collar 18 thereof and extends about an axis that hence coincides with the axis A of the element 1 inserted in the seat 52; in particular, the seat 52 has a contrast surface 54 carried by a base body 55 and co-operating axially (along the axis A) by bearing upon the plug 20 and specifically upon the front surface 35.
  • the clamping group 51 comprises movable gripping members 56, driven by an actuator system (known and not illustrated) co-operating with the engagement portion 25 of the plug 20 so as to deform the engagement portion 25 around the collar 18 and to engage the plug 20 to the collar 18.
  • an actuator system known and not illustrated
  • the clamping group 51 comprises two half-grippers 57, which are movable with respect to one another in a sliding direction S, substantially orthogonal to the axis A and advantageously parallel to or coinciding with the major axis B, and are provided with respective cavities 58 defining, together with the surface 54, the seat 52.
  • the two half-grippers 57 are shaped in such a way as to clamp laterally on opposite sides the assembly 53 housed in the seat 52.
  • the clamping group 51 comprises also a detent 59 co-operating with the half-grippers 57 to stop the movement of the half-grippers in a preset position in the sliding direction S.
  • the gripping members 56 are movable parallel to the axis A and are configured in such a way as to grip the plug 20 axially against the seat 52 and specifically against the contrast surface 54 so as to cause plastic deformation of the engagement portion 25 of the plug 20 housed in the seat 52 and bend the fixing surface 29b of the plug 20 underneath the collar 18, so as to exert on the collar 18 gripping forces applied essentially only in an axial direction (parallel to the axis A) and substantially without radial components of stress.
  • the plug 20 is pre-arranged in an undeformed configuration, in which the fixing surface 29b, which with the plug 20 mounted is bent perpendicularly to the axis A underneath the collar 18, constitutes instead a free end portion of the side wall 30 and is also set parallel to the axis A as prolongation of the side wall 30; the plug 20 is then applied on the end part 10 by introducing the closing portion 24, with the seal ring 21, through the opening 12 and fitting the engagement portion 25 on the collar 18; the fixing surface 29a of the plug 20 is set bearing upon the face 19a of the collar 18.
  • the assembly 53 formed by the element 1 and by the plug 20 is set between the two half-grippers 57 of the device 50, which are in a divaricated opening position ( Figure 3 ; Figure 5 ) at an appropriate distance apart from one another; the half-grippers 57 are then brought close to one another in the sliding direction S ( Figure 6 ) to define the seat 52 in which the assembly 53 remains housed and laterally clamped.
  • the gripping members 56 are then moved in a direction parallel to the axis A ( Figure 7 ) so as to cause plastic deformation of the engagement portion 25 to bend the fixing surface 29b underneath the collar 18 and against the face 19b of the collar 18 and to grip the fixing surfaces 29a, 29b axially against the respective faces 19a, 19b of the collar 18, in such a way as to exert on the collar 18 gripping forces applied essentially only in an axial direction (parallel to the axis A) and substantially without radial components of stress (orthogonal to the axis A).
  • the plug 20 once again comprises a closing portion 24 housed within the end part 10 and a radially external flange head 25a, which extends on the outside of the end part 10 and has an annular shoulder 26 axially co-operating with the collar 18 by bearing thereupon and specifically resting against the face 19a.
  • the closing portion 24 of the plug 20 has a free end 27 (opposite to the head 25a) that is chamfered and has a flared shape corresponding to the shape of the flared portion 15 of the end part 10.
  • the free end 27 has a terminal closing surface 28 substantially orthogonal to the axis A and set within the end part 10; the head 25a has a front surface 39 opposite and substantially parallel to the terminal closing surface 28.
  • the plug 20 is gripped against the end part 10 and mechanically coupled to the end part 10 by a fixing member 38, which co-operates with and rests against the front surface 39 of the plug 20 by bearing thereupon and is mechanically fastened to the end part 10 via engagement portions 31 of the fixing member 38, which are bent back and are plastically deformed in such a way as to grip the plug 20 against a contrast surface of the end part 10, defined in the case in point by the face 19a of the collar 18, and consequently squeeze the seal ring 21 between the external lateral surface 22 of the plug 20 and the internal lateral surface 23 of the end part 10.
  • the fixing member 38 (which constitutes the engagement portion 25 of the plug 20) and the plug 20 are constituted by respective pieces, which are preferably monolithic, distinct, and separate.
  • the plug 20 is made of aluminium
  • the fixing member 38 is made of sheet metal, for example steel.
  • the fixing member 38 is engaged to the end part 10 via engagement portions 31 that are substantially bent to form a C around the collar 18 and that engage the face 19b.
  • the fixing member 38 comprises a plate 32 that covers at least partially (in the example shown, but not necessarily, entirely) the front surface 39 of the plug 10, and a perimetral band 33, which extends from a perimetral edge of the plate 32 and is bent around the collar 18 to constitute the engagement portions 31 that engage the end part 10 and specifically the collar 18.
  • the fixing member 38 can be provided with engagement portions 31 of other shapes.
  • the fixing member 38 comprises the plate 32 and appendages 34 that extend from the perimetral edge of the plate 32 and constitute respective engagement portions 31 that engage the end part 10 (and specifically, once again, the collar 18).
  • the appendages 34 are set at at least two diametrally opposite ends of the plate 32.
  • the fixing member 38 and the plug 20 can be constituted by respective pieces pre-assembled and/or joined fixedly in any manner, in such a way as to form a unitary body that can be applied to the end part 10 instead of the two separate pieces constituted by the plug 20 and by the fixing member 38.
  • the fixing member 38 may be constituted by a portion of the plug 20, specifically by the engagement portion 25; i.e., it may be made integrally of a single piece with the plug 20 to constitute a monolithic body (for example made of aluminium); for instance, the fixing member 38 can be constituted by a radially external flange portion of the plug 20, which can be continuous or constituted by angularly separate sectors defining one or more engagement portions 31 bent around the collar 18 in a way altogether similar to what has been described previously.
  • the end part 10 has optionally, in addition to the opening 12, a pair of opposite holes 40, set on opposite sides of the end part 10 and substantially orthogonal to the opening 12 and to the axis A; the holes 40 are delimited by respective edges 41, for example substantially circular, and hydraulically connect the chamber 4 with the transverse connector sleeves 5.
  • the plug 20 extends within the end part 10 so as to come into the close proximity of the holes 40, in order to prevent formation of air pockets during dipping of the element 1 in a generic treatment bath.
  • the plug 20 is shaped in such a way that, once it is fixed to the end part 10, the terminal closing surface 28 is set in the close proximity of respective proximal stretches 42 of the edges 41 facing the opening 12 and set closest to the opening 12.
  • the terminal closing surface 28 is substantially tangential to the holes 40 and/or the terminal closing surface 28 lies in a plane that is substantially tangential to the edges 41 or is secant with respect to the edges 41 (specifically, the proximal stretches 42 of the edges 41).

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Resistance Heating (AREA)
  • Cookers (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Clamps And Clips (AREA)
  • Gasket Seals (AREA)
EP20100754547 2009-07-28 2010-07-27 Heating radiator element and method and device for closing an end part of a heating radiator element Not-in-force EP2459950B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL10754547T PL2459950T3 (pl) 2009-07-28 2010-07-27 Element grzejnika oraz sposób i urządzenie do zamykania części końcowej elementu grzejnika
HRP20150856TT HRP20150856T1 (hr) 2009-07-28 2015-08-11 Element za grijanje radijatora i postupak i uređaj za zatvaranje krajnjeg dijela elementa za grijanje radijatora

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ITMI2009A001331A IT1394988B1 (it) 2009-07-28 2009-07-28 Elemento di radiatore da riscaldamento, in particolare in alluminio pressofuso, e metodo di chiusura di una parte terminale di un elemento di radiatore da riscaldamento
ITMI2010A000638A IT1399622B1 (it) 2010-04-14 2010-04-14 Elemento di radiatore da riscaldamento e metodo e dispositivo per chiudere una parte terminale di un elemento di radiatore da riscaldamento.
PCT/IB2010/001858 WO2011012981A1 (en) 2009-07-28 2010-07-27 Heating radiator element and method and device for closing an end part of a heating radiator element

Publications (2)

Publication Number Publication Date
EP2459950A1 EP2459950A1 (en) 2012-06-06
EP2459950B1 true EP2459950B1 (en) 2015-05-20

Family

ID=43063661

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20100754547 Not-in-force EP2459950B1 (en) 2009-07-28 2010-07-27 Heating radiator element and method and device for closing an end part of a heating radiator element

Country Status (10)

Country Link
EP (1) EP2459950B1 (zh)
CN (1) CN102549370B (zh)
EA (1) EA019878B1 (zh)
ES (1) ES2544703T3 (zh)
HR (1) HRP20150856T1 (zh)
HU (1) HUE027041T2 (zh)
PL (1) PL2459950T3 (zh)
PT (1) PT2459950E (zh)
UA (1) UA104638C2 (zh)
WO (1) WO2011012981A1 (zh)

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CN102278910A (zh) * 2011-05-20 2011-12-14 广东美的制冷设备有限公司 微通道的换热器及其制作方法
ITMI20120804A1 (it) * 2012-05-10 2013-11-11 Fondital Spa Elemento di radiatore da riscaldamento e metodo di chiusura di una parte terminale di un elemento di radiatore da riscaldamento
ITMI20130447A1 (it) * 2013-03-25 2014-09-26 Fondital Spa Metodo di giunzione di componenti in alluminio, in particolare per la chiusura di una parte terminale di un elemento di radiatore da riscaldamento, ed elemento di radiatore da riscaldamento
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IT201700025526A1 (it) * 2017-03-08 2018-09-08 Franco Lancini Dispositivo per la chiusura ermetica di un radiatore
RU194524U1 (ru) * 2019-08-19 2019-12-13 Александр Александрович ЛОБАЧ Алюминиевый радиатор с нижним подключением к системе отопления

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WO2008044363A1 (fr) * 2006-10-12 2008-04-17 Zelework Corporation Bouchon pour couvercle calorifugé

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CN102549370B (zh) 2014-03-19
PT2459950E (pt) 2015-09-18
HRP20150856T1 (hr) 2015-09-25
EA019878B1 (ru) 2014-06-30
HUE027041T2 (en) 2016-08-29
EA201270203A1 (ru) 2012-08-30
ES2544703T3 (es) 2015-09-03
UA104638C2 (uk) 2014-02-25
EP2459950A1 (en) 2012-06-06
WO2011012981A1 (en) 2011-02-03
PL2459950T3 (pl) 2015-11-30
CN102549370A (zh) 2012-07-04

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