EP3063488A1 - Tube radiator for heating and method for producing a tube radiator for heating - Google Patents

Tube radiator for heating and method for producing a tube radiator for heating

Info

Publication number
EP3063488A1
EP3063488A1 EP14809522.7A EP14809522A EP3063488A1 EP 3063488 A1 EP3063488 A1 EP 3063488A1 EP 14809522 A EP14809522 A EP 14809522A EP 3063488 A1 EP3063488 A1 EP 3063488A1
Authority
EP
European Patent Office
Prior art keywords
rails
tubes
tube
coupling
rail
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.)
Granted
Application number
EP14809522.7A
Other languages
German (de)
French (fr)
Other versions
EP3063488B1 (en
Inventor
Fabio Fusi
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
Application filed by Fondital SpA filed Critical Fondital SpA
Priority to PL14809522T priority Critical patent/PL3063488T3/en
Priority to SI201431372T priority patent/SI3063488T1/en
Priority to RS20191353A priority patent/RS59487B1/en
Publication of EP3063488A1 publication Critical patent/EP3063488A1/en
Application granted granted Critical
Publication of EP3063488B1 publication Critical patent/EP3063488B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081—Heat exchange elements made from metals or metal alloys
    • F28F21/084—Heat exchange elements made from metals or metal alloys from aluminium or aluminium alloys
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • F28D1/05316—Assemblies of conduits connected to common headers, e.g. core type radiators
    • 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
    • F28F9/0248—Arrangements for sealing connectors to header boxes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
    • F28F9/18—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding
    • F28F9/182—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding the heat-exchange conduits having ends with a particular shape, e.g. deformed; the heat-exchange conduits or end plates having supplementary joining means, e.g. abutments
    • 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
    • F28D2021/0036—Radiators for drying, e.g. towel 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
    • F28F2275/00—Fastening; Joining
    • F28F2275/02—Fastening; Joining by using bonding materials; by embedding elements in particular materials
    • F28F2275/025—Fastening; Joining by using bonding materials; by embedding elements in particular materials by using adhesives

Definitions

  • the present invention relates to a tube radiator for heating and a method for producing a tube radiator for heating, in particular of the so-called "ladder" type.
  • a tube radiator for heating in particular of the commonly described “ladder” type, is generally composed of a plurality of tubes parallel to each other and arranged between two rails (normally, but not necessarily, vertical in use) . Hot water (or, more rarely, some other hot fluid) circulates in the tubes and rails.
  • Tube radiators for heating of this type can be made of different materials and with different methods of manufacture.
  • aluminium radiators are usually manufactured by making the tubes and the rails separately and then assembling the tubes and rails.
  • the fastening of the tubes to the rails must be such as to ensure both an effective mechanical coupling and an effective watertight seal.
  • One object of the present invention is that of providing a tube radiator for heating and a method for producing a tube radiator for heating that are advantageous with respect to known solutions; in particular, one object of the invention is to provide a tube radiator for heating and a method for its manufacture that enable the tubes to be fastened to the rails in a simple, rapid and effective manner.
  • the present invention therefore relates to a tube radiator for heating and a method for producing a tube radiator for heating as essentially defined in the appended claims 1 and 11, respectively, as well as in the dependent claims for the preferred additional characteristics.
  • the invention enables fastening the tubes to the rails of tube radiators for heating in a particularly simple, rapid and effective manner with respect to known solutions, ensuring both the mechanical coupling and watertight sealing in a fully satisfactory manner.
  • the invention also enables:
  • the invention also enables significantly reducing the defect rate in the joint areas between tubes and rails.
  • the coupling between tubes and rails in accordance with the invention also enables high production flexibility, allowing radiators to be made that have differentiated hydraulic circuits, without requiring supplementary steps in the production process.
  • FIG. 1 is a front view of a tube radiator for heating in accordance with the invention
  • FIG. 2 is an exploded partial perspective view, with sectioned parts, of a detail of the radiator in Figure 1, of which a rail and a tube are only partially shown;
  • FIGS. 3 and 4 are two exploded, longitudinal section views of details of the radiator in Figure 1;
  • FIG. 5 is a longitudinal section view, on an enlarged scale, of a further detail of the radiator in Figure 1;
  • FIG. 6 is a longitudinal section view of a detail of the radiator in Figure 1, in which the tube and the rail are assembled;
  • FIG. 7 is a longitudinal section view of a detail of the radiator in Figure 1 according to a variant.
  • FIG. 8 schematically illustrates a step of the method of producing the radiator in accordance with the invention.
  • Figure 1 shows a tube radiator 1 for heating, in particular of the so-called “ladder” type.
  • the radiator 1 comprises a pair of rails 2 (normally, but not necessarily, vertical in use) , substantially parallel to and facing each other; and a plurality of tubes 3, arranged between the rails 2 and substantially parallel to each other and perpendicular to the rails 2.
  • the tubes 3 are spaced out along the rails 2, possibly spaced apart from each other in various ways and/or organized in groups .
  • each rail 2 comprises an extruded aluminium profile body 4 that extends along an axis A.
  • the body 4 has a lateral wall 5 that delimits a longitudinal internal chamber 6, which extends along axis A; advantageously (but not necessarily) , the lateral wall 5 has a solid longitudinal base portion 7, parallel to axis A and facing the other rail 2, and a portion 8, for example curved or poligonal, which extends from the base portion 7 around axis A.
  • the base portion 7 preferably has an outer surface 11, substantially flat and facing the other rail 2, and an inner surface 12 facing the chamber 6.
  • Each rail 2 is provided with a plurality of through holes 13, axially spaced out from each other along the rail 2 and extending along respective axes B perpendicular to axis A.
  • the holes 13 are made through the base portion 7 of the lateral wall 5 of the rail 2, between surfaces 11 and 12, and for the thickness of the base portion 7 of the lateral wall 5.
  • Each hole 13 defines or comprises a seat 14 for the insertion of a tube 3.
  • Each rail 2 thus comprises a series of seats 14, axially spaced apart from each other to accept respective tubes 3 and extending along respective axes B.
  • Each hole 13 has a front inlet opening 15, formed on the outer surface 11 of the rail 2 and provided with a bevel or lead-in
  • Each hole 13 comprises an outer portion 17, adjacent to the opening 15 and defining a seat 14, and an inner portion 18, adjacent to the chamber 6; portions 17 and 18 are substantially cylindrical and parallel to axis B (having a constant cross-section and diameter along axis B) and have different diameters, the outer portion 17 having a larger diameter than the inner portion 18; between the two portions
  • the portions 17 and 18 are united by a shoulder 20 facing the opening 15;
  • the shoulder 20 can be a continuous annular shoulder around axis B, or be interrupted, i.e. constituted by one or more sectors separated from each other; the shoulder 20 is substantially perpendicular to axis B and parallel to the outer surface 11 of the base portion 7 of the lateral wall 5.
  • the tubes 3 are constituted by respective tubular bodies, made of extruded aluminium for example, like the rails 2.
  • Each tube 3 extends along an axis B (in use, coincident with axis B of a seat 14) between two axially opposite ends 21, provided with respective annular free end front edges 22.
  • Each tube 3 comprises a main central portion 23, for example substantially cylindrical in shape (i.e. having a constant cross-section and diameter along axis B) , and two coupling portions 24, located at respective ends 21 and insertable in respective holes 13, or more precisely in respective seats 14, to join the tube 3 to the rails 2.
  • a main central portion 23 for example substantially cylindrical in shape (i.e. having a constant cross-section and diameter along axis B)
  • two coupling portions 24 located at respective ends 21 and insertable in respective holes 13, or more precisely in respective seats 14, to join the tube 3 to the rails 2.
  • each coupling portion 24 is at least partially tapered towards the end 21 of the tube 3; in particular, the coupling portion 24 comprises, starting from the edge 22, a tapered zone 25, converging towards the edge 22, and an interference zone 26, for example, substantially cylindrical in shape.
  • the tapered zone 25 has a substantially truncated-cone shape and an outer diameter initially (i.e. at the free end front edge 22) less than the diameter of the seat 14 (i.e.
  • the interference zone 26 has a diameter such that it can be inserted with radial interference in the seat 14 (i.e. in the outer portion 17 of the hole 13) , so as to join the tube 3 to the rail 2 by mechanical interference.
  • the interference zone 26 is substantially cylindrical, but could also have a truncated-cone shape, like the tapered zone 25.
  • the interference zone 26 is an annular zone extending axially along axis B and, in use, touches a corresponding portion of the inner annular surface of the seat 14 having the same shape, this also preferably cylindrical; the coupling portion 24 and the seat 14 are in contact with each other on respective annular surfaces extending along axis B and, preferably, both cylindrical around axis B; in other words, the mechanical interference between the coupling portion 24 and the seat 14 is not limited to an annular contact profile (a line) , but takes place between two surfaces having a certain axial extension (along axis B) .
  • the tapered zone 25 and the interference zone 26 are connected by a connection zone 27, tapered towards zone 25, but having less conicity than zone 25.
  • Each end 21 of a tube 3 is fastened to a rail 2 by a mechanical interference coupling 30, formed by the coupling portion 24, precisely by the interference zone 26, and by the seat 14, i.e. by the outer portion 17 of the hole 13 in which the coupling portion 24 is inserted with radial interference.
  • the mechanical interference between the coupling portion 24 and the seat 14 takes place mainly in the interference zone 26, but it can start in the tapered zone 25 as well, and also involve the connection zone 27 if necessary.
  • each coupling portion 24 is inserted in a seat 14 with the respective edge 22 facing or resting against the shoulder 20; not all of the coupling portions 24 necessarily touch a shoulder 20; the tubes 3 may actually have slightly different lengths, within the manufacturing tolerance limits; the longer tubes will abut against the shoulders 20, while the shorter tubes will stop short of the shoulders 20, as they are blocked by the radial interference between the respective coupling portions 24 and the respective seats 14; in this way, the invention also allows compensating for the manufacturing tolerances of the tubes 3.
  • Each end 21 is also permanently fastened in the respective seat 14 by gluing, welding, thermoelectric fusion or some other fastening technology.
  • each end 21 is also glued in the respective seat 14 by a layer 31 of adhesive applied between an outer lateral surface 32 of the coupling portion 24 and an inner lateral surface 33 of the seat 14 (i.e. of the outer portion 17 of the hole 13) ;
  • the adhesive layer 31 is mainly laid on the tapered zone 25 (occupying the radial space between the inner lateral surface 33 of the seat 14) , and to a lesser or residual extent on the interference zone 26 (and possibly on the connection zone 27) ;
  • the adhesive layer 31 is laid around the coupling portion 24 to form a continuous annular sealing element 34, which ensures both the watertight seal and the mechanical seal between the coupling portion 24 and the seat 14.
  • the adhesive in the layer 31 is suitable for gluing together the materials with which the rails 2 and tubes 3 are made, in particular for gluing aluminium.
  • the adhesive can be a heat-reticulated epoxy adhesive; examples of usable adhesives are those of the Hysol® family manufactured by Henkel, or adhesives having similar characteristics .
  • the adhesive layers 31 also act as watertight sealing elements, constituting respective sealing elements 34.
  • the radiator 1 has differentiated holes 13 along the rails 2.
  • At least some holes 13 of each rail 2 have differentiated narrowings 19 (with different cross-sections) depending on the position of the holes 13 along the rail 2.
  • a hole 13 is shown in Figure 7 having a larger narrowing 19 than the holes 13 shown in Figures 3, 4 and 6.
  • the holes 13 have outer portions 17 (defining the seats 14) substantially all the same, while they have inner portions 18 of different diameter depending on the position along the rail 2.
  • the rails 2 preferably have respective groups of holes 13 with different inner portions 18 and, therefore, different narrowings 19.
  • the tubes 3 are fitted with internal fins 35, located inside the tubes 3 and extending from respective internal lateral surfaces of the tubes 3; for example, as shown by broken lines in Figures 5 and 6, each tube 3 is provided with a plurality of longitudinal fins 35 parallel to each other and to the axis B of the tube 3 and arranged radially around axis B; in any case, it remains understood that the tubes 3 could be provided with fins 35 of another shape and arrangement.
  • the fins 35 enable "catching" heat from the hottest areas of the fluid circulating inside the tubes 3 and transferring said heat to the outer surfaces of the tubes 3.
  • the above-described radiator 1 is preferably made using the method described in detail below and principally comprising the steps of:
  • the step of sealing the couplings 30 includes a step of gluing each coupling portion 24 in the associated seat 14, in particular by gluing together the outer lateral surface 32 of the coupling portion 24 and the inner lateral surface 33 of the seat 14.
  • the radiator 1 is made, through implementation of the method of the invention, in the following manner.
  • the rails 2 and tubes 3 are made; advantageously, both the rails 2 and the tubes 3 ae made of aluminium (or an aluminium alloy) by an extrusion process; the rails 2 and the tubes 3 are thus constituted by respective monolithic extruded tubular elements .
  • the holes 13, or more precisely the outer portions 17 and inner portions 18, having different diameters, of the holes 13, are then made in the rails 2 by machine drilling, thereby also forming the seats 14, the narrowings 19 and the shoulders 20.
  • the ends 21 of the tubes 3 are provided with opportunely shaped coupling portions 24, in particular to form the tapered zone 25, the interference zone 26 and, optionally, the connection zone 27.
  • This operation apart from providing the tubes 3 with the coupling portions 24 for coupling to the rails 2, allows achieving the desired design dimensions in a precise and reliable manner, also achieving a reduction in the tolerance range of the part with respect to that of the extrusion process .
  • Adhesive is then applied to provide the adhesive layers 31; for example, the adhesive is applied on the seats 14, in particular on the inner lateral surfaces 33 of the seats 14 (i.e. on the outer portions 17 of the holes 13) .
  • the tubes 3 are then joined to the rails in an assembly step that comprises the steps of:
  • each coupling portion 24 is coupled to the respective seat 14 by mechanical interference; depending on the length of each tube 3, the edge 22 stops against the respective shoulder 20, or remains axially spaced apart from it (within manufacturing tolerance limits) .
  • the rails 2 are placed on respective guides 40A and 40B that are movable with respect to one another and parallel to each other; for example, the rails 2 are placed on a moveable guide 40A, connected to a piston 42 of a pressing apparatus 43, and on a fixed guide 40B.
  • the tubes 3 are placed on a rack 44 provided with mounting seats 45 that hold the tubes 3 in the desired configuration, i.e. spaced out from each other.
  • the rack 44 is placed between the guides 40A and 40B, with the tubes 3 aligned with respective pairs of seats 14 on the facing rails 2.
  • All of the tubes 3 are assembled on the rails 2 in a single step, by means of the pressing apparatus 43, which pushes the guides 40A and 40B towards each other (by operating, for example, the piston 42 connected to the movable guide 40A) and exerting the pressure necessary for fitting the tubes 3 on the rails 2, forming an assembly 50.
  • the assembly 50 formed by the rails 2 and the tubes 3 is then subjected to a step of sealing the couplings 30, to join the tubes 3 to the rails 2 in a fluid-tight manner.
  • the assembly 50 is subjected to a heat-treatment step, in particular a baking step, to obtain the polymerization/reticulation of the adhesive and thus complete the watertight sealing and mechanical sealing of each coupling 30.
  • a heat-treatment step in particular a baking step
  • the sealing step could comprise a different process, for example, a welding process, in particular laser welding, or thermoelectric fusion, without material removal; the welding or thermoelectric fusion process is carried out, without material removal, along a peripheral edge 36 of the opening 15 to produce a bead 37 of material of the tube 3 and/or the rail 2 around the peripheral edge 36 ( Figure 6) ; the bead 37 firmly joins the tube 3 to the rail 2 in a fluid-tight manner.
  • a welding process in particular laser welding, or thermoelectric fusion
  • the step of making the holes 13 in the rails 2 by machine drilling comprises a step of making differentiated holes 13 along the rails 2, i.e. holes 13 having different narrowings 19 along the rails 2.

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)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Resistance Heating (AREA)
  • Pipe Accessories (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Branch Pipes, Bends, And The Like (AREA)

Abstract

A tube radiator (1) for heating comprises a pair of rails (2), provided with respective pluralities of holes (13) axially spaced apart from one another along the rails (2); and a plurality of tubes (3) positioned between the rails (2) and joined to the rails (2) at respective axial ends (21) of the tubes (3), inserted in respective holes (13); the ends (21) of the tubes (3) being fastened to the rails (2) via respective mechanical interference couplings (30); each coupling (30) is formed by a coupling portion (24) of a tube (3), at least partially tapered, and by a seat (14), formed in a hole (13) and in which the coupling portion (24) is inserted with radial interference; each coupling (30) is also sealed in a fluid- tight manner, for example by gluing.

Description

"TUBE RADIATOR FOR HEATING AND METHOD FOR PRODUCING A TUBE RADIATOR FOR HEATING"
TECHNICAL FIELD
The present invention relates to a tube radiator for heating and a method for producing a tube radiator for heating, in particular of the so-called "ladder" type.
BACKGROUND ART
A tube radiator for heating, in particular of the commonly described "ladder" type, is generally composed of a plurality of tubes parallel to each other and arranged between two rails (normally, but not necessarily, vertical in use) . Hot water (or, more rarely, some other hot fluid) circulates in the tubes and rails.
Tube radiators for heating of this type can be made of different materials and with different methods of manufacture.
In particular, aluminium radiators are usually manufactured by making the tubes and the rails separately and then assembling the tubes and rails.
The fastening of the tubes to the rails must be such as to ensure both an effective mechanical coupling and an effective watertight seal.
The known methods for fastening the tubes to the rails appear susceptible to improvement, especially in terms of simplicity and speed of assembly, and the reliability and service life of the coupling.
DISCLOSURE OF INVENTION
One object of the present invention is that of providing a tube radiator for heating and a method for producing a tube radiator for heating that are advantageous with respect to known solutions; in particular, one object of the invention is to provide a tube radiator for heating and a method for its manufacture that enable the tubes to be fastened to the rails in a simple, rapid and effective manner.
The present invention therefore relates to a tube radiator for heating and a method for producing a tube radiator for heating as essentially defined in the appended claims 1 and 11, respectively, as well as in the dependent claims for the preferred additional characteristics.
The invention enables fastening the tubes to the rails of tube radiators for heating in a particularly simple, rapid and effective manner with respect to known solutions, ensuring both the mechanical coupling and watertight sealing in a fully satisfactory manner.
The invention also enables:
- reducing the size of the couplings between tubes and rails, in particular reducing the depth of the seats that receive the tubes ;
- achieving high mechanical resistance, as the tube has greater resistance to compression and traction;
- salvaging parts found to be defective or rejected.
The invention also enables significantly reducing the defect rate in the joint areas between tubes and rails. The coupling between tubes and rails in accordance with the invention also enables high production flexibility, allowing radiators to be made that have differentiated hydraulic circuits, without requiring supplementary steps in the production process.
In fact, by simply altering a few construction parameters and without resorting to supplementary processing steps or components, it is possible to optimize the geometry and heat- exchange characteristics of the radiator, in particular altering the passageway cross-sections in the joint sections between tubes and rails, thereby differentiating the water flow in different zones of the radiator.
BRIEF DESCRIPTION OF THE DRAWINGS
Further characteristics and advantages of the present invention will become clear from the description that follows of a non-limitative embodiment, with reference to the figures in the accompanying drawings, where:
- Figure 1 is a front view of a tube radiator for heating in accordance with the invention;
- Figure 2 is an exploded partial perspective view, with sectioned parts, of a detail of the radiator in Figure 1, of which a rail and a tube are only partially shown;
- Figures 3 and 4 are two exploded, longitudinal section views of details of the radiator in Figure 1;
- Figure 5 is a longitudinal section view, on an enlarged scale, of a further detail of the radiator in Figure 1;
- Figure 6 is a longitudinal section view of a detail of the radiator in Figure 1, in which the tube and the rail are assembled;
- Figure 7 is a longitudinal section view of a detail of the radiator in Figure 1 according to a variant; and
- Figure 8 schematically illustrates a step of the method of producing the radiator in accordance with the invention. BEST MODE FOR CARRYING OUT THE INVENTION
Figure 1 shows a tube radiator 1 for heating, in particular of the so-called "ladder" type.
The radiator 1 comprises a pair of rails 2 (normally, but not necessarily, vertical in use) , substantially parallel to and facing each other; and a plurality of tubes 3, arranged between the rails 2 and substantially parallel to each other and perpendicular to the rails 2. The tubes 3 are spaced out along the rails 2, possibly spaced apart from each other in various ways and/or organized in groups .
With reference to Figures 2-4, each rail 2 comprises an extruded aluminium profile body 4 that extends along an axis A.
The body 4 has a lateral wall 5 that delimits a longitudinal internal chamber 6, which extends along axis A; advantageously (but not necessarily) , the lateral wall 5 has a solid longitudinal base portion 7, parallel to axis A and facing the other rail 2, and a portion 8, for example curved or poligonal, which extends from the base portion 7 around axis A.
The base portion 7 preferably has an outer surface 11, substantially flat and facing the other rail 2, and an inner surface 12 facing the chamber 6. Each rail 2 is provided with a plurality of through holes 13, axially spaced out from each other along the rail 2 and extending along respective axes B perpendicular to axis A. In particular, the holes 13 are made through the base portion 7 of the lateral wall 5 of the rail 2, between surfaces 11 and 12, and for the thickness of the base portion 7 of the lateral wall 5.
Each hole 13 defines or comprises a seat 14 for the insertion of a tube 3. Each rail 2 thus comprises a series of seats 14, axially spaced apart from each other to accept respective tubes 3 and extending along respective axes B. Each hole 13 has a front inlet opening 15, formed on the outer surface 11 of the rail 2 and provided with a bevel or lead-in
16 converging towards the inside of the hole 13.
Each hole 13 comprises an outer portion 17, adjacent to the opening 15 and defining a seat 14, and an inner portion 18, adjacent to the chamber 6; portions 17 and 18 are substantially cylindrical and parallel to axis B (having a constant cross-section and diameter along axis B) and have different diameters, the outer portion 17 having a larger diameter than the inner portion 18; between the two portions
17 and 18, there is a narrowing 19 defined by the variation in diameter between the two portions 17 and 18; the portions 17 and 18 are united by a shoulder 20 facing the opening 15; the shoulder 20 can be a continuous annular shoulder around axis B, or be interrupted, i.e. constituted by one or more sectors separated from each other; the shoulder 20 is substantially perpendicular to axis B and parallel to the outer surface 11 of the base portion 7 of the lateral wall 5.
For simplicity, the longitudinal ends of the rails 2, which are possibly provided with respective caps and/or connectors are neither shown nor described.
The tubes 3 are constituted by respective tubular bodies, made of extruded aluminium for example, like the rails 2.
Each tube 3 extends along an axis B (in use, coincident with axis B of a seat 14) between two axially opposite ends 21, provided with respective annular free end front edges 22.
Each tube 3 comprises a main central portion 23, for example substantially cylindrical in shape (i.e. having a constant cross-section and diameter along axis B) , and two coupling portions 24, located at respective ends 21 and insertable in respective holes 13, or more precisely in respective seats 14, to join the tube 3 to the rails 2.
As shown in detail in Figure 5, each coupling portion 24 is at least partially tapered towards the end 21 of the tube 3; in particular, the coupling portion 24 comprises, starting from the edge 22, a tapered zone 25, converging towards the edge 22, and an interference zone 26, for example, substantially cylindrical in shape. The tapered zone 25 has a substantially truncated-cone shape and an outer diameter initially (i.e. at the free end front edge 22) less than the diameter of the seat 14 (i.e. of the outer portion 17 of the hole 13) to allow the insertion and centring of the tube 3 in the seat 14, but greater than the diameter of the inner portion 18 of the hole 13, so as to stop the edge 22 against the shoulder 20 if necessary (in any case, as will be explained below, the edge 22 is not necessarily in contact with the shoulder 20) . The interference zone 26 has a diameter such that it can be inserted with radial interference in the seat 14 (i.e. in the outer portion 17 of the hole 13) , so as to join the tube 3 to the rail 2 by mechanical interference. Preferably, the interference zone 26 is substantially cylindrical, but could also have a truncated-cone shape, like the tapered zone 25.
In any case, the interference zone 26 is an annular zone extending axially along axis B and, in use, touches a corresponding portion of the inner annular surface of the seat 14 having the same shape, this also preferably cylindrical; the coupling portion 24 and the seat 14 are in contact with each other on respective annular surfaces extending along axis B and, preferably, both cylindrical around axis B; in other words, the mechanical interference between the coupling portion 24 and the seat 14 is not limited to an annular contact profile (a line) , but takes place between two surfaces having a certain axial extension (along axis B) .
Optionally, as shown in Figures 2-5, the tapered zone 25 and the interference zone 26 are connected by a connection zone 27, tapered towards zone 25, but having less conicity than zone 25.
Each end 21 of a tube 3 is fastened to a rail 2 by a mechanical interference coupling 30, formed by the coupling portion 24, precisely by the interference zone 26, and by the seat 14, i.e. by the outer portion 17 of the hole 13 in which the coupling portion 24 is inserted with radial interference. The mechanical interference between the coupling portion 24 and the seat 14 takes place mainly in the interference zone 26, but it can start in the tapered zone 25 as well, and also involve the connection zone 27 if necessary.
As shown in Figure 6, each coupling portion 24 is inserted in a seat 14 with the respective edge 22 facing or resting against the shoulder 20; not all of the coupling portions 24 necessarily touch a shoulder 20; the tubes 3 may actually have slightly different lengths, within the manufacturing tolerance limits; the longer tubes will abut against the shoulders 20, while the shorter tubes will stop short of the shoulders 20, as they are blocked by the radial interference between the respective coupling portions 24 and the respective seats 14; in this way, the invention also allows compensating for the manufacturing tolerances of the tubes 3. Each end 21 is also permanently fastened in the respective seat 14 by gluing, welding, thermoelectric fusion or some other fastening technology.
For example, each end 21 is also glued in the respective seat 14 by a layer 31 of adhesive applied between an outer lateral surface 32 of the coupling portion 24 and an inner lateral surface 33 of the seat 14 (i.e. of the outer portion 17 of the hole 13) ; the adhesive layer 31 is mainly laid on the tapered zone 25 (occupying the radial space between the inner lateral surface 33 of the seat 14) , and to a lesser or residual extent on the interference zone 26 (and possibly on the connection zone 27) ; the adhesive layer 31 is laid around the coupling portion 24 to form a continuous annular sealing element 34, which ensures both the watertight seal and the mechanical seal between the coupling portion 24 and the seat 14.
The adhesive in the layer 31 is suitable for gluing together the materials with which the rails 2 and tubes 3 are made, in particular for gluing aluminium. For example, the adhesive can be a heat-reticulated epoxy adhesive; examples of usable adhesives are those of the Hysol® family manufactured by Henkel, or adhesives having similar characteristics . In addition to firmly joining the tubes 3 to the rails 2, the adhesive layers 31 also act as watertight sealing elements, constituting respective sealing elements 34.
Optionally, the radiator 1 has differentiated holes 13 along the rails 2.
At least some holes 13 of each rail 2 have differentiated narrowings 19 (with different cross-sections) depending on the position of the holes 13 along the rail 2.
For example, a hole 13 is shown in Figure 7 having a larger narrowing 19 than the holes 13 shown in Figures 3, 4 and 6.
Advantageously, the holes 13 have outer portions 17 (defining the seats 14) substantially all the same, while they have inner portions 18 of different diameter depending on the position along the rail 2.
The rails 2 preferably have respective groups of holes 13 with different inner portions 18 and, therefore, different narrowings 19.
In this way, it is possible to calibrate the flow of water in the various holes 13 according to the position of the holes along the rails 2 and consequently improve heat exchange efficiency.
Optionally, the tubes 3 are fitted with internal fins 35, located inside the tubes 3 and extending from respective internal lateral surfaces of the tubes 3; for example, as shown by broken lines in Figures 5 and 6, each tube 3 is provided with a plurality of longitudinal fins 35 parallel to each other and to the axis B of the tube 3 and arranged radially around axis B; in any case, it remains understood that the tubes 3 could be provided with fins 35 of another shape and arrangement. The fins 35 enable "catching" heat from the hottest areas of the fluid circulating inside the tubes 3 and transferring said heat to the outer surfaces of the tubes 3. The above-described radiator 1 is preferably made using the method described in detail below and principally comprising the steps of:
- providing the rails 2 and the tubes 3;
- assembling the tubes 3 and the rails 2, by inserting the coupling portions 24 of the tubes 3 in the respective seats 14 with mechanical interference and making the couplings 30;
- sealing the couplings 30 in a fluid-tight manner, for example, by gluing, welding, thermoelectric fusion or some other technology; for example, the step of sealing the couplings 30 includes a step of gluing each coupling portion 24 in the associated seat 14, in particular by gluing together the outer lateral surface 32 of the coupling portion 24 and the inner lateral surface 33 of the seat 14.
In greater detail, the radiator 1 is made, through implementation of the method of the invention, in the following manner.
The rails 2 and tubes 3 are made; advantageously, both the rails 2 and the tubes 3 ae made of aluminium (or an aluminium alloy) by an extrusion process; the rails 2 and the tubes 3 are thus constituted by respective monolithic extruded tubular elements .
The holes 13, or more precisely the outer portions 17 and inner portions 18, having different diameters, of the holes 13, are then made in the rails 2 by machine drilling, thereby also forming the seats 14, the narrowings 19 and the shoulders 20. By machining with material removal (for example, turning), the ends 21 of the tubes 3 are provided with opportunely shaped coupling portions 24, in particular to form the tapered zone 25, the interference zone 26 and, optionally, the connection zone 27.
This operation, apart from providing the tubes 3 with the coupling portions 24 for coupling to the rails 2, allows achieving the desired design dimensions in a precise and reliable manner, also achieving a reduction in the tolerance range of the part with respect to that of the extrusion process .
Adhesive is then applied to provide the adhesive layers 31; for example, the adhesive is applied on the seats 14, in particular on the inner lateral surfaces 33 of the seats 14 (i.e. on the outer portions 17 of the holes 13) . Once the adhesive is applied, the tubes 3 are then joined to the rails in an assembly step that comprises the steps of:
- placing the rails 2 to face one another, with the respective surfaces 11 facing each other and the respective series of seats 14 in alignment;
- placing the tubes 3 between the rails 2 and aligning each tube 3 with a pair of seats 14 made in the respective rails 2;
- inserting the coupling portions 24 of each tube 3 in respective seats 14 of the rails 2;
- pressing the rails 2 one towards the other, engaging the coupling portions 24 in the respective seats 14 until each coupling portion 24 is coupled to the respective seat 14 by mechanical interference; depending on the length of each tube 3, the edge 22 stops against the respective shoulder 20, or remains axially spaced apart from it (within manufacturing tolerance limits) .
For example, as schematically shown in Figure 8, the rails 2 are placed on respective guides 40A and 40B that are movable with respect to one another and parallel to each other; for example, the rails 2 are placed on a moveable guide 40A, connected to a piston 42 of a pressing apparatus 43, and on a fixed guide 40B.
The tubes 3 are placed on a rack 44 provided with mounting seats 45 that hold the tubes 3 in the desired configuration, i.e. spaced out from each other. The rack 44 is placed between the guides 40A and 40B, with the tubes 3 aligned with respective pairs of seats 14 on the facing rails 2.
All of the tubes 3 are assembled on the rails 2 in a single step, by means of the pressing apparatus 43, which pushes the guides 40A and 40B towards each other (by operating, for example, the piston 42 connected to the movable guide 40A) and exerting the pressure necessary for fitting the tubes 3 on the rails 2, forming an assembly 50.
The assembly 50 formed by the rails 2 and the tubes 3 is then subjected to a step of sealing the couplings 30, to join the tubes 3 to the rails 2 in a fluid-tight manner.
For example, the assembly 50 is subjected to a heat-treatment step, in particular a baking step, to obtain the polymerization/reticulation of the adhesive and thus complete the watertight sealing and mechanical sealing of each coupling 30.
As an alternative to gluing, the sealing step could comprise a different process, for example, a welding process, in particular laser welding, or thermoelectric fusion, without material removal; the welding or thermoelectric fusion process is carried out, without material removal, along a peripheral edge 36 of the opening 15 to produce a bead 37 of material of the tube 3 and/or the rail 2 around the peripheral edge 36 (Figure 6) ; the bead 37 firmly joins the tube 3 to the rail 2 in a fluid-tight manner.
In any case, once the mechanical assembly is finished, the tubes 3 are already fastened to the rails 2, due to the mechanical interference between the coupling portions 24 and the respective seats 14, and so the assembly 50 can be easily handled, without resorting to additional aids, to take it and subject it to the subsequent sealing step. If, as previously described, the radiator 1 has differentiated holes 13 along the rails 2, the step of making the holes 13 in the rails 2 by machine drilling comprises a step of making differentiated holes 13 along the rails 2, i.e. holes 13 having different narrowings 19 along the rails 2.
Finally, it is understood that further modifications and variants can be applied to the tube radiator for heating and the associated production method described and illustrated herein without departing from the scope of the appended claims .

Claims

1. A tube radiator (1) for heating, comprising a pair of rails (2), provided with respective pluralities of holes (13) axially spaced apart from one another along the rails (2) and having respective front inlet openings (15) on an outer surface (11) of a rail (2) ; and a plurality of tubes (3) positioned between the rails (2) and joined to the rails (2) at respective axial ends (21) of the tubes (3), inserted in respective holes (13); the ends (21) of the tubes (3) being fastened to the rails (2) via respective mechanical interference couplings (30); the radiator being characterized in that each hole (13) comprises an outer portion (17), adjacent to the opening (15) and defining a seat (14) ; and an inner portion (18), adjacent to a longitudinal internal chamber (6) of the rail (2) ; each coupling (30) being formed by a coupling portion (24), positioned at one end (21) of the tube (3) and at least partly tapered towards the end (21) of the tube (3); and by a seat (14); the coupling portion (24) being inserted with radial interference in the seat (14), and the coupling portion (24) and the seat (14) being in contact with each other on respective annular surfaces extending axially along an axis (B) of the tube (3) and both substantially cylindrical about the axis (B) ; and in that each coupling (30) is also sealed in a fluid-tight manner.
2. A radiator according to claim 1, wherein each coupling (30) is sealed in a fluid-tight manner by means of an adhesive layer (31), placed around the coupling portion (24) to form a continuous annular sealing element (34) ; or by means of a bead (37) of material of the tube (3) and/or the rail (2), said bead (37) being positioned around a peripheral edge (36) of the opening (15) and firmly joining the tube (3) to the rail (2) in a fluid-tight manner.
3. A radiator according to claim 1 or 2, wherein each coupling portion (24) comprises, starting from a free end front edge (22) thereof, a tapered zone (25), converging towards the free end front edge (22) of the coupling portion (24), and a substantially cylindrical interference zone (26); and wherein the outer portion (17) and the inner portion (18) of each hole (13) are substantially cylindrical and parallel to the axis (B) , have different diameters, and are joined by an annular shoulder (20) facing towards the opening (15) ; the coupling portion (24) and the seat (14) being in contact through said interference zone (26) and said outer portion (17), both substantially cylindrical, the interference zone (26) having a diameter such as to be inserted with radial interference in the seat (14), so as to join the tube (3) to the rail (2) by mechanical interference.
4. A radiator according to claim 3, wherein the shoulder (20) is substantially perpendicular to the axis (B) .
5. A radiator according to claim 3 or 4, wherein the free end front edge (22) of the coupling portion (24) abuts against the shoulder (20) .
6. A radiator according to any of claims 3 to 5, wherein the tapered zone (25) and the interference zone (26) are connected by a connection zone (27), tapering towards the tapered zone (25), but having less conicity than the tapered zone (25) .
7. A radiator according to one of the preceding claims, wherein each end (21) is glued in the respective seat (14), by means of an adhesive layer (31) applied between an outer lateral surface (32) of the coupling portion (24) and an inner lateral surface (33) of the seat (14) and placed around the coupling portion (24) to form a continuous annular sealing element (34) .
8. A radiator according to one of preceding claims, wherein each hole (3) has a narrowing (19) between the outer portion (17) and the inner portion (18) ; and at least some holes (13) of each rail (2) have differentiated narrowings (19), i.e. having different cross-sections, depending on the position of the holes (13) along the rail (2) .
9. A radiator according to claim 8, wherein the holes
(13) have outer portions (17) substantially all the same, while they have inner portions (18) of different diameters depending on the position along the rail (2) .
10. A method for producing a tube radiator (1) for heating of the type comprising a pair of rails (2), provided with respective pluralities of holes (13) axially spaced apart from one another along the rails (2) ; and a plurality of tubes (3) positioned between the rails (2) and joined to the rails
(2) at respective axial ends (21), inserted in respective holes (13); the method comprising:
- a step of providing a pair of rails (2), having respective pluralities of holes (13) axially spaced apart from one another along the rails (2) and comprising respective seats
(14) for insertion of the respective ends (21) of the tubes
(3) and having respective front inlet openings (15) on an outer surface (11) of a rail (2) ; each hole (13) comprising an outer portion (17), adjacent to the opening (15) and defining a seat (14) ; and an inner portion (18) , adjacent to a longitudinal internal chamber (6) of the rail (2);
- a step of providing a plurality of tubes (3), having respective coupling portions (24), positioned at respective ends (21) of the tubes (3) and at least partly tapered towards the respective ends (21) of the tubes (3);
- an assembly step, in which the tubes (3) are assembled on the rails (2) by inserting the coupling portions (24) in respective seats (14) through the respective front inlet openings (15) of the holes (13) and by coupling each coupling portion (24) with the respective seat (14) by mechanical interference, thereby making a corresponding mechanical interference coupling (30); the coupling portion (24) being inserted with radial interference in the seat (14), and the coupling portion (24) and the seat (14) being in contact with each other on respective annular surfaces extending axially along an axis (B) of the tube (3) and both substantially cylindrical about the axis (B) ;
- a sealing step, in which the couplings (30) are sealed in fluid-tight manner.
11. A method according to claim 10, wherein each coupling (30) is sealed in fluid-tight manner by means of an adhesive layer (31), placed around the coupling portion (24) to form a continuous annular sealing element (34) ; or a bead (37) of material of the tube (3) and/or the rail (2), said bead (37) being formed around a peripheral edge (36) of the opening (15) and firmly joining the tube (3) to the rail (2) in a fluid-tight manner.
12. A method according to claim 10 or 11, comprising a step of providing, in particular by machining with material removal, the coupling portion (24) with at least one tapered zone (25), converging towards a free end front edge (22) of the coupling portion (24), and with an interference zone (26), substantially cylindrical in shape; and in which the outer portion (17) and the inner portion (18) of each hole (13) are substantially cylindrical and parallel to the axis (B) , have different diameters, and are joined by an annular shoulder (20) facing towards the opening (15) ; in the assembly step, the coupling portion (24) and the seat (14) being brought into contact by said interference zone (26) and said outer portion (17), both substantially cylindrical, the interference zone (26) having a diameter such as to be inserted with radial interference in the seat (14), so as to join the tube (3) to the rail (2) by mechanical interference.
13. A method according to claim 12, wherein the shoulder
(20) is substantially perpendicular to the axis (B) .
14. A method according to claim 12 or 13, wherein in the assembly step, the coupling portion (24) is inserted into the seat (14) until the free end front edge (22) abuts against the shoulder (20) .
15. A method according to any of claims 12 to 14, comprising a step of providing, in particular by machining with material removal, the coupling portion (24) with a connection zone (27), which joins the tapered zone (25) and the interference zone (26) and tapers towards the tapered zone (25), but has less conicity than the tapered zone (25) .
16. A method according to any of claims 10 to 15, wherein the holes (13) are provided with said outer portion (17) and said inner portion (18) having different diameters by means of machine drilling.
17. A method according to any of claims 10 to 16, comprising a first step of machining the tube (3), with material removal, to make the coupling portion (24) .
18. A method according to any of claims 10 to 17, comprising a second step of machining the rail (2) to form the holes (13) on the rail (2) .
19. A method according to any of claims 10 to 18, wherein the sealing step comprises a step of gluing each end
(21) of the tubes (3) in the respective seat (14), by means of an adhesive layer (31) applied between an outer lateral surface (32) of the coupling portion (24) and an inner lateral surface (33) of the seat (14) and placed around the coupling portion (24) to form a continuous annular sealing element (34) .
20. A method according to claim 19, wherein the sealing step comprises a heat-treatment step to obtain the polymerization/reticulation of the adhesive and thereby complete the watertight sealing of each coupling (30) .
21. A method according to any of claims 10 to 19, wherein the sealing step comprises a welding process, in particular laser welding, or thermoelectric fusion, without addition of material; the welding process or the thermoelectric fusion process being carried out for each coupling (30), without addition of external material, along a peripheral edge (36) of the opening (15) for forming a bead (37) of material of the tube (3) and/or the rail (2), around the peripheral edge (36) ; said bead (37) firmly joining the tube (3) to the rail (2) in fluid-tight manner.
22. A method according to any of claims 10 to 21, wherein the assembly step comprises the steps of:
- placing the rails (2) to face one another, with the respective series of seats (14) aligned;
- placing the tubes (3) between the rails (2) and aligning each tube (3) with a pair of seats (14) formed on respective rails (2 ) ;
- inserting the coupling portions (24) of each tube (3) in respective seats (14) of the rails (2);
- pressing the rails (2) one towards the other, and pushing the coupling portions (24) into the respective seats (14) until each coupling portion (24) couples with the respective seat (14) by mechanical interference.
23. A method according to claim 22, wherein the assembly step comprises the steps of:
- placing the rails (2) on respective guides (40A, 40B) movable with respect to each other, and the tubes (3) on a rack (44) provided with mounting seats (45) that hold the tubes (3) in a predetermined configuration, spaced apart from one another;
- placing the rack (44) between the guides (40A, 40B) , with the tubes (3) aligned with respective pairs of seats (14) on the facing rails (2) ;
- pushing the guides (40A, 40B) towards each other and exerting pressure for fitting the tubes (3) onto the rails (2) .
24. A method according to any of claims 10 to 23, wherein all the tubes (3) are assembled on the rails (2) in a single step.
25. A method according to any of claims 10 to 24, wherein each hole (3) has a narrowing (19) between the outer portion (17) and the inner portion (18) ; and the method comprises a step of making, via machine drilling, holes (13) in the rails (2) having differentiated narrowings (19), i.e. having different cross-sections, depending on the position of the holes (13) along the rail (2) .
26. A method according to claim 25, wherein the holes (13) have outer portions (17) substantially all the same, while they have inner portions (18) of different diameters depending on the position along the rail (2) .
27. A method according to any of claims 10 to 26, wherein the rails (2) and the tubes (3) are made of aluminum or aluminum alloy by an extrusion process.
EP14809522.7A 2013-10-30 2014-10-30 Tube radiator for heating and method for producing a tube radiator for heating Active EP3063488B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PL14809522T PL3063488T3 (en) 2013-10-30 2014-10-30 Tube radiator for heating and method for producing a tube radiator for heating
SI201431372T SI3063488T1 (en) 2013-10-30 2014-10-30 Tube radiator for heating and method for producing a tube radiator for heating
RS20191353A RS59487B1 (en) 2013-10-30 2014-10-30 Tube radiator for heating and method for producing a tube radiator for heating

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT001806A ITMI20131806A1 (en) 2013-10-30 2013-10-30 TUBE HEATER RADIATOR AND METHOD FOR MANUFACTURING A HEATING TUBE RADIATOR
PCT/IB2014/065724 WO2015063724A1 (en) 2013-10-30 2014-10-30 Tube radiator for heating and method for producing a tube radiator for heating

Publications (2)

Publication Number Publication Date
EP3063488A1 true EP3063488A1 (en) 2016-09-07
EP3063488B1 EP3063488B1 (en) 2019-08-07

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EP (1) EP3063488B1 (en)
CN (1) CN105765332B (en)
CY (1) CY1122141T1 (en)
EA (1) EA030963B1 (en)
ES (1) ES2752549T3 (en)
HU (1) HUE045691T2 (en)
IT (1) ITMI20131806A1 (en)
PL (1) PL3063488T3 (en)
PT (1) PT3063488T (en)
RS (1) RS59487B1 (en)
SI (1) SI3063488T1 (en)
UA (1) UA118769C2 (en)
WO (1) WO2015063724A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112016004273B4 (en) 2015-09-22 2023-12-28 Denso Corporation Heat exchanger
EP3561397B1 (en) * 2018-04-27 2020-07-01 Orkli, S. Coop. Connection device for radiator

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2553690B1 (en) * 1983-10-21 1986-09-12 Cegedur METHOD OF ASSEMBLING A THIN TUBE INTO A PLATE OR SLEEVE
JPH0755386A (en) * 1993-08-18 1995-03-03 Sanden Corp Heat exchanger
IT1290645B1 (en) * 1997-01-20 1998-12-10 Valter Lolli METHOD FOR THE CREATION OF RADIANT GROUPS FOR THERMAL RADIATORS.
DE19823635A1 (en) * 1998-05-27 1999-12-02 Thermo Technik Holding Ag Reut Fabrication of radiator for bathrooms
EP1517109A1 (en) * 2003-09-20 2005-03-23 ETS Dienstleistungs- und Handels GmbH Method for manufacturing a hot water tubular radiator casing and hot water tubular radiator
JP4999982B2 (en) * 2008-03-17 2012-08-15 三菱電機株式会社 Heat exchanger and dehumidifier using the same
EP2430384B1 (en) * 2009-05-12 2014-07-23 Stiliac S.p.A. Radiator with distribution and collection head and pipes
CN102734574A (en) * 2012-07-05 2012-10-17 达瑞尔·莱恩·文森特 Pipe joint component and safety locking pipeline connection system comprising same

Also Published As

Publication number Publication date
PL3063488T3 (en) 2019-12-31
ITMI20131806A1 (en) 2015-05-01
EA201690887A1 (en) 2016-08-31
ES2752549T3 (en) 2020-04-06
HUE045691T2 (en) 2020-01-28
PT3063488T (en) 2019-10-18
CY1122141T1 (en) 2020-11-25
WO2015063724A1 (en) 2015-05-07
CN105765332A (en) 2016-07-13
EP3063488B1 (en) 2019-08-07
CN105765332B (en) 2019-01-25
EA030963B1 (en) 2018-10-31
RS59487B1 (en) 2019-12-31
SI3063488T1 (en) 2019-11-29
UA118769C2 (en) 2019-03-11

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