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WO2011148402A1 - Dispositif à rayons infrarouges pour chauffage ambiant - Google Patents

Dispositif à rayons infrarouges pour chauffage ambiant Download PDF

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Publication number
WO2011148402A1
WO2011148402A1 PCT/IT2011/000165 IT2011000165W WO2011148402A1 WO 2011148402 A1 WO2011148402 A1 WO 2011148402A1 IT 2011000165 W IT2011000165 W IT 2011000165W WO 2011148402 A1 WO2011148402 A1 WO 2011148402A1
Authority
WO
WIPO (PCT)
Prior art keywords
amorphous silica
layer
mattress
gas
silica fabric
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.)
Ceased
Application number
PCT/IT2011/000165
Other languages
English (en)
Inventor
Pier Luigi Tenci
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.)
LA RUDE Srl
Original Assignee
LA RUDE Srl
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 LA RUDE Srl filed Critical LA RUDE Srl
Priority to PL11739170T priority Critical patent/PL2577165T3/pl
Priority to ES11739170.6T priority patent/ES2549040T3/es
Priority to DK11739170.6T priority patent/DK2577165T3/en
Priority to EP11739170.6A priority patent/EP2577165B1/fr
Priority to SI201130603T priority patent/SI2577165T1/sl
Publication of WO2011148402A1 publication Critical patent/WO2011148402A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/28Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid in association with a gaseous fuel source, e.g. acetylene generator, or a container for liquefied gas
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/12Radiant burners
    • F23D14/14Radiant burners using screens or perforated plates
    • F23D14/147Radiant burners using screens or perforated plates with perforated plates as radiation intensifying means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24CDOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00Stoves or ranges for gaseous fuels
    • F24C3/04Stoves or ranges for gaseous fuels with heat produced wholly or partly by a radiant body, e.g. by a perforated plate
    • F24C3/042Stoves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D2203/00Gaseous fuel burners
    • F23D2203/10Flame diffusing means
    • F23D2203/106Assemblies of different layers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D2212/00Burner material specifications
    • F23D2212/10Burner material specifications ceramic
    • F23D2212/103Fibres

Definitions

  • the present invention relates to a device for heating the ambient by means of infrared rays, in particular for heating the ambient by means of an infrared radiation with a wavelength of between 3 and 5 micrometers.
  • gas heat generators which emit infrared radiations obtained by converting the heat generated by the combustion of gaseous fuels such as, for example, natural gas, methane, liquefied gas, LPG, urban gas of various compositions, gas of any type, normally used to feed boiler burners, stoves and industrial kitchens, for public and/ or domestic use.
  • gaseous fuels such as, for example, natural gas, methane, liquefied gas, LPG, urban gas of various compositions, gas of any type, normally used to feed boiler burners, stoves and industrial kitchens, for public and/ or domestic use.
  • Such devices usually emit infrared radiations at human height, i.e. within a height from the ground normally occupied by the users.
  • the heat generated by combustion is usually converted into an infrared radiation by means of an amorphous silica mineral fabric, characterised by a degree of purity of over 99%, associated with the refractory means.
  • gas heat generators can be fixed or moveable.
  • infrared radiation is usually achieved by a direct combustion of gas in an appropriate pipe.
  • These generators are generally positioned at a height of at least four metres, in order to enable a certain distribution of the heat downwards by means of reflecting parabolas, without damaging the people most exposed to them.
  • this requirement of a fixed location results in considerable losses of energy: the reflecting parabolas radiate heat not only downwards but also towards the ceiling of the environment.
  • gas heat generators provided with ceramic plates in which the gas is combusted directly on the surface of the plates at a high temperature of about 700°C.
  • These generators are poorly suited to work environments because, for safety reasons, they must be positioned high up, beyond the reach of any accidental contact by the users.
  • the ceramic plates, heated to a high temperature emit radiations with a wavelength of about 3 micrometres, this value being unfavourable for absorption by the irradiated human body, which more easily absorbs wavelengths of about 4-5 micrometres. Therefore, their thermal contribution as a whole and also the feeling of thermal well-being on the irradiated surfaces of the body are small.
  • Moveable heat generators are also available, fed by a bottle of fuel and provided with flame surfaces and radiating metal panels held in a raised position and facing downwards. These types of generators are often used in public places to heat areas that are in the open-air or exposed to draughts. These types of generators have a low efficiency too. Indeed, the need to limit the temperature of the hot surfaces that can be accessed by individuals, and therefore potentially dangerous because of accidental contacts, has a negative impact on efficiency.
  • the object of the present invention is to overcome the above-mentioned operational limitations and hence to propose a device for heating the ambient by means of infrared rays, with high thermal efficiency, that can be safely used also at human height.
  • the device according to the present invention comprises:
  • - a basically vertical hollow casing, delimiting a central chamber with an entry in its base, a radial outlet and closed by a top cover,
  • - refractory means placed between the entry and the outlet of said chamber, including a layer or mattress of amorphous silica fabric for infrared radiation and defining the outlet for the waste gas.
  • the hot waste combustion gases pass through a multilayer amorphous silica fabric mattress adapted for converting the heat of the combusted gas passing through it into an infrared radiation directed towards the ambient.
  • Us ing amorphous silica maximises the efficiency of the heat exchange and the amount of irradiation of the infrared radiation diffused into the heated ambient, and minimises fuel consumptions and carbon monoxide emissions.
  • the hollow casing is substantially cylindrical and comprises an internal reticular wall and an external reticular wall concentrically distanced; the layer of amorphous silica fabric, or the mattress of amorphous silica fabric, is placed and held between said walls.
  • the amorphous silica fabric forming the above-mentioned layer or mattress has a silica (S1O 2 ) content of 99% or more by mass, preferably about 99.99%.
  • the high silica content prevents the devitrification of the fibres of the layer or mattress, which is most advantageous to the device's useful life. In fact, the devitrification of the silica fibres substantially reduces heat-exchange efficiency and makes the device uneconomical.
  • the OH-ion content in the layer/ mattress is inversely proportional to the degree of purity of the silica fibre.
  • the OH-ions are almost completely absent; this characteristic makes it possible to maintain the efficiency of the infrared transmission of the layer/ mattress over time, thus minimising the device fuel consumptions.
  • the layer/ mattress of amorphous silica fabric contains long fibres with a diameter of between 2 and 13 micrometers, more preferably with an average diameter of about 9 micrometers.
  • the amorphous silica fabric forming the layer or mattress has a density, per unit of surface area, of between 90 and 120 g/m 2 . More preferably, the density of the amorphous silica fabric is about 110 g/m 2 ⁇ 10%.
  • the above values of diameter and/ or density for the silica fabrics enable pressure losses encountered by the flow of fuel and comburent in the burner to be minimised, to the benefit of complete combustion and compliance with the limits set for carbon monoxide emissions.
  • the emissions of carbon monoxide are less than 210 ppm.
  • the surface of the layer/ mattress of amorphous silica fabric is exposed towards the radial exit of the casing of the device, and it is enclosed by a tissue also made of amorphous silica fabric with a silica (S1O 2 ) content of at least 99% by mass.
  • a tissue also made of amorphous silica fabric with a silica (S1O 2 ) content of at least 99% by mass.
  • a tissue is in contact with the external wall of the hollow casing.
  • the above-mentioned tissue has a density of 80 - 180 grams/ m 2 , preferably about 140 ⁇ 40 grams/ m 2 .
  • the internal and external reticular walls enclosing the layer/ mattress of amorphous silica fabric have an empty to full ratio from between 80% to 90%, more preferably of about 88% ⁇ 3%.
  • the layer or mattress of amorphous silica fabric has an internal portion facing towards the internal reticular wall, covered by noble metals, preferably belonging to the platinum group.
  • the internal portion of the layer/ mattress covered with noble metals has a depth of between 5-30 mm, for example between 20 mm and 30 mm. This value of the depth allows carbon monoxide (CO) emissions to be kept well below the limit of 1000 ppm set by Standard UNI EN 30 1-1 for burners of type 6, with the advantage of being able to use the device according to the invention in work environments.
  • CO carbon monoxide
  • the device according to the invention is fed by any combustible gas, preferably liquefied gas (LPG) and/ or natural gas such as methane.
  • LPG liquefied gas
  • methane natural gas
  • Fig. 1 is a front sectional view of a first embodiment of the invention
  • Fig. 2 is a section taken along the arrows A- A in Fig. 3;
  • Fig. 3 is a partially cutaway top view of the device V.
  • Figs. 4a, 4b, 4c and 4d show details of four different components.
  • the device according to the invention is generally denoted by 1 and, as stated above, it is provided for achieving an infrared radiation by direct conversion of the heat from the combustion at a burner 6 using gas fuels.
  • the device 1 basically comprises a vertical hollow casing 2 having in its base an entry 3 and a radial outlet 4 in the direction of the arrows F in Fig. 1.
  • the entry 3 is arranged so as to channel a flow of air to be mixed with the gases resulting from said combustion, themselves mixed with air passing from the outside towards the inside of the hollow casing 2, through a perforated member 26 which is typically cylindrical and made of sheet metal.
  • the radial outlet 4 enables the waste gases to be vented to the atmosphere.
  • converter and refractory means interposed between the inside of the hollow casing 2 and the outlet 4 are converter and refractory means, denoted generally by 5, which are composed of amorphous silica fabric.
  • the hollow casing 2 has a basically cylindrical structure with an annular lower end 24 connected, in use, to a supporting structure 27 which supports the burner 6 and the afore said perforated member 26 enabling the combustion air and for mixing with the exhaust gases to pass from the outside to the inside.
  • the perforated member 26 also encloses means 10 for conveying, adjusting and igniting the fuel, as well as a portion 28, however not essential, serving as a control panel for igniting the fuel and adjusting the flow by means of a tap 10.
  • the perforated member 26 is connected, in use, to an open metal frame 16, preferably cylindrically-shaped, that supports the heating device 1 and, through an arm 13, a reflecting parabola 30 directing the infrared radiation towards a preferred user.
  • an insulating material 25a such as ceramic fibre
  • the base plate 39 is anchored to the cover 25 by means of at least one metal pawl 40 which is welded to the base plate itself.
  • a mesh member 31 - Figs. 3, 4a - Positioned above the cover 25, at a certain distance, is a mesh member 31 - Figs. 3, 4a - so as to delimit between them a space 41 in which is held, by radial pressure, a welded mesh 7 - Figs. 3, 4b - surrounding the casing 2 in order to protect against manual contacts.
  • the hollow casing 2 has an internal wall 35 and an external wall 36 concentrically spaced, both composed of a stretched metal mesh - Fig. 3c - with an empty to full ratio of at least 85%, to enable the maximum throughput of combusted products without loss of load.
  • the internal wall 35 is anchored at the top to the outer edge of the base plate 39 of the cover 25; the external wall 36 is anchored at the top to a peripheral rim of said cover 25; both the internal and external walls are mechanically secured at the bottom by a metal ring forming part of the structure 24 at the base of the hollow casing 2.
  • the converter and refractory means 5 referred to above are arranged and held between the internal reticular wall 35 and the external reticular wall 36. They consist in a mattress of mineral fibres, particularly amorphous silica fibre having advantageously a density, per unit of surface area, of 110 g/m 2 +10% and an average diameter of the fibre of about 9 micrometres.
  • a layer 38 of the silica fabric mattress of the converter- refractory means 5 which is in contact with the internal reticular wall 35 of the cylindrical casing 2 is treated with noble metals capable of catalysing any unburned residues emitted by the burner. These noble metals are preferably of the Platinum group.
  • the silica fabric mattress of the converter/ refractory means 5 is externally lined with a tissue 37 placed adjacent to the external reticular wall 36 of the hollow casing 2 - Figs. 3, 4d. This tissue preferably comprises amorphous and/ or washed silica with at least 96% SiO2 t0 aid maximum transparency for infrared radiation.
  • the panel 28 supports the gas adjuster tap 10, and a flap 11 enables access to a battery-holder 32 for the ignition device 34, connected to the battery 32 by means of the wire 9. Furthermore, a double connection 33 connects the battery 32 in one direction to a microswitch forming an integral part of the tap 10, and connects in the opposite direction the microswitch to the igniter in order to close the battery - microswitch - igniter circuit.
  • the gas bottle 15 is located inside a bell 16 whose base 21 is provided with pivoting and/ or self -braking wheels 22 to enable the device 1 to be moved within its place of use.
  • the bell covering the bottle is preferably formed of two half -shells.
  • the reflecting parabola 30 is anchored to one 16 of these by means of the respective arm 13; the other half-shell 14 is provided with a handle 12 and can be opened by means of the hinges 43 in order to insert and/ or remove the bottle on a supporting level surface 21.
  • At the base of the bell 16 there is a hole 23 intended for passing a hose to feed the device 1 with gas if the area to be heated has a gas distribution network.
  • the bottle 15 can be used as a back-up in those places of the area not served by the gas (LPG) distribution network or the internal distribution network, or it can be totally omitted if methane gas is available.
  • LPG gas
  • the waste combusted gas flow mixed with the air from the opening 3 of the cylindrical body 2, passes through the refractory converter means 5.
  • the S1O2 content in the fibre characterising the mattress comprising the refractory means 5 is 99% or more, with an optical refraction index of about 1.46 and a dispersion of about 67, having an absolute transparency band of 0.2-4 micrometres, capable of producing a transmitted thermal power of 17- 30k W/ m 2 at a temperature inside the casing 2 of 450°-590°C.
  • the temperature of the peripheral portion of the refractory body 5 in contact with the reticular wall 36 is about 105°-190°C, whose mostly- emitted wavelength can be easily absorbed by the users, is in the range from 4 to 5 micrometres, and enables 80-100% absorption by the user.
  • the cylindrical casing 2 made as described above and having an empty to full ratio of more than 80% does not cause a loss of load for the combustion waste gas.
  • the theoretical loss of load value which can be calculated as 9x1 ⁇ - 4 - 12x1 ⁇ -4 Pascal, is absolutely negligible for the purposes of complete combustion at the burner, without altering the emission values of any unburned products.
  • the thermal power that can be delivered by the device 1 can be adjusted from 1 kW up to 7.5 kW.
  • the limit range of thermal enjoyment is within about 5 metres from the refractory device 5.
  • the maximum distance of thermal enjoyment can be as far as 6 metres.
  • the heating device can be arranged with its refractory body 5 at human height, so that the user can enjoy its effects directly over a large surface area of the body.
  • the metal mesh 7 provides protection against accidental contact with the emitting surface 4 from outside, and the reflecting parabola enables the infrared thermal radiation emitted by the surface 4 of the casing 2 to be oriented and directed, if necessary.
  • Another important aspect of the infrared radiation heating provided by the device 1 is the uniformity of thermal diffusion in the surrounding area, preventing concentrations of localised heat which are undesirable for the user.
  • the operation of the device 1 originates at the burner 6, which uses gas fuels to generate the heat required for the subsequent conversion into infrared radiation through the amorphous silica fabric contained in the refractory device 5.
  • the device 1 In order to achieve a high efficiency based on the thermal power transmitted, and therefore an energy saving, still having sufficient energy to heat the users in the desired place, the device 1 has an average radiant temperature of about 330°C and, at the same time, uses the sensible and latent heat of the gas flow combusted in the burner 6 and emitted into the surrounding ambient. These requirements are satisfied also thanks to the virtually negligible values of any residual emissions of unburned products such as: carbon monoxide (CO), coming from the combustion in the burner 6.
  • CO carbon monoxide
  • the burner 6 releases the unburned products well within the legal limits for use in environments such as hangars, for example.
  • the unburned products released into the hollow casing 2 by the burner 6 are within 150-700 ppm, depending on the operating power, expressed in amount of carbon monoxide (CO).
  • the amorphous silica fibre incorporated into the converter- refractory means 5 performs a further reduction of carbon monoxide emissions which reach values of 45-210 ppm on exiting the surface 4, such values being considerably below the legal limits for burners of type 6 as used in the device 1.
  • the refractory converter 5, made as described above allows any unburned residue to be reduced by over 70%, leaving mainly water vapour and C0 2 as the components of combustion.
  • the device of the invention enables high thermal efficiency to be achieved in that it allows the use of both the sensible heat of the combusted gas and the latent heat of the water vapour contained in the waste combusted gas, which is expelled directly into the ambient to be heated and which is added to that mostly irradiated as infrared radiations.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)

Abstract

La présente invention concerne un dispositif destiné à chauffer l'air ambiant au moyen de rayons infrarouges. Le dispositif comprend un boîtier creux cylindrique (2) pourvu d'une entrée (3) pour le passage de l'air destiné à être mélangé avec les gaz résultant de la combustion de combustibles gazeux provenant du brûleur (6), une sortie (4) pour les gaz ayant subi une combustion et des moyens réfractaires (5) placés entre ladite entrée et ladite sortie. Les moyens réfractaires (5) sont composés de fibres minérales pouvant convertir la chaleur provenant de la combustion d'un brûleur (6), situé à l'intérieur du boîtier (2), en un rayonnement infrarouge qui est émis vers l'extérieur de la surface externe (4) du boîtier cylindrique creux (2).
PCT/IT2011/000165 2010-05-25 2011-05-19 Dispositif à rayons infrarouges pour chauffage ambiant Ceased WO2011148402A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
PL11739170T PL2577165T3 (pl) 2010-05-25 2011-05-19 Promiennik podczerwieni do ogrzewania otoczenia
ES11739170.6T ES2549040T3 (es) 2010-05-25 2011-05-19 Dispositivo de rayos infrarrojos para calefacción ambiental
DK11739170.6T DK2577165T3 (en) 2010-05-25 2011-05-19 Infrared radiation device to heat the surroundings
EP11739170.6A EP2577165B1 (fr) 2010-05-25 2011-05-19 Dispositif à rayons infrarouges pour chauffage ambiant
SI201130603T SI2577165T1 (sl) 2010-05-25 2011-05-19 Naprava z infrardečimi žarki za ogrevanje okolja

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBS2010A000098A IT1400045B1 (it) 2010-05-25 2010-05-25 Dispositivo per un riscaldamento ambientale a raggi infrarossi.
ITBS2010A000098 2010-05-25

Publications (1)

Publication Number Publication Date
WO2011148402A1 true WO2011148402A1 (fr) 2011-12-01

Family

ID=43533580

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2011/000165 Ceased WO2011148402A1 (fr) 2010-05-25 2011-05-19 Dispositif à rayons infrarouges pour chauffage ambiant

Country Status (8)

Country Link
EP (1) EP2577165B1 (fr)
DK (1) DK2577165T3 (fr)
ES (1) ES2549040T3 (fr)
HU (1) HUE026412T2 (fr)
IT (1) IT1400045B1 (fr)
PL (1) PL2577165T3 (fr)
SI (1) SI2577165T1 (fr)
WO (1) WO2011148402A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7530636B2 (ja) 2020-11-18 2024-08-08 株式会社千石 ガスストーブ

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3081863B1 (fr) 2015-03-13 2020-01-08 La Rude SRL Élément chauffant à rayons infrarouges portable pour chauffage ambiant

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2255298A (en) * 1939-05-06 1941-09-09 George L Reichhelm Radiant heater
FR1375471A (fr) 1963-11-23 1964-10-16 App S Speciaux Pour Equipement Générateur thermique antidéflagrant
US3191659A (en) * 1958-04-07 1965-06-29 American Thermocatalytic Corp Radiant gas burner
FR1450282A (fr) 1964-10-19 1966-05-06 Universal Oil Prod Co Appareil de chauffage par radiation
US4354479A (en) * 1980-02-19 1982-10-19 Orion Machinery Co., Ltd. Infrared ray generator
US4452225A (en) * 1983-06-14 1984-06-05 Plant David F Portable, auxiliary, radiant chimney effect heater
US5645043A (en) * 1995-01-25 1997-07-08 The Coleman Company, Inc. Radiant heater
DE29915469U1 (de) 1999-09-03 1999-12-09 Colsman & Co GmbH, 58791 Werdohl Heizvorrichtung
US6140658A (en) * 1973-02-16 2000-10-31 Lockheed Martin Corporation Combustion heated honeycomb mantle infrared radiation

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003069224A1 (fr) * 2002-02-12 2003-08-21 Voith Paper Patent Gmbh Emetteurs de rayons infrarouges se presentant sous la forme de radiateurs plans

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2255298A (en) * 1939-05-06 1941-09-09 George L Reichhelm Radiant heater
US3191659A (en) * 1958-04-07 1965-06-29 American Thermocatalytic Corp Radiant gas burner
FR1375471A (fr) 1963-11-23 1964-10-16 App S Speciaux Pour Equipement Générateur thermique antidéflagrant
FR1450282A (fr) 1964-10-19 1966-05-06 Universal Oil Prod Co Appareil de chauffage par radiation
US6140658A (en) * 1973-02-16 2000-10-31 Lockheed Martin Corporation Combustion heated honeycomb mantle infrared radiation
US4354479A (en) * 1980-02-19 1982-10-19 Orion Machinery Co., Ltd. Infrared ray generator
US4452225A (en) * 1983-06-14 1984-06-05 Plant David F Portable, auxiliary, radiant chimney effect heater
US5645043A (en) * 1995-01-25 1997-07-08 The Coleman Company, Inc. Radiant heater
DE29915469U1 (de) 1999-09-03 1999-12-09 Colsman & Co GmbH, 58791 Werdohl Heizvorrichtung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7530636B2 (ja) 2020-11-18 2024-08-08 株式会社千石 ガスストーブ

Also Published As

Publication number Publication date
HUE026412T2 (en) 2016-06-28
IT1400045B1 (it) 2013-05-17
EP2577165A1 (fr) 2013-04-10
SI2577165T1 (sl) 2016-01-29
ES2549040T3 (es) 2015-10-22
DK2577165T3 (en) 2015-09-28
EP2577165B1 (fr) 2015-07-15
PL2577165T3 (pl) 2015-12-31
ITBS20100098A1 (it) 2011-11-26

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