EP2784409A1 - Appareil de chauffage à combustible portable pour chauffer l'air et procédé permettant de chauffer l'air à travers ledit dispositif de chauffage - Google Patents

Appareil de chauffage à combustible portable pour chauffer l'air et procédé permettant de chauffer l'air à travers ledit dispositif de chauffage Download PDF

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Publication number
EP2784409A1
EP2784409A1 EP13161801.9A EP13161801A EP2784409A1 EP 2784409 A1 EP2784409 A1 EP 2784409A1 EP 13161801 A EP13161801 A EP 13161801A EP 2784409 A1 EP2784409 A1 EP 2784409A1
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EP
European Patent Office
Prior art keywords
combustion chamber
forced
energy
ventilation means
heater
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
EP13161801.9A
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German (de)
English (en)
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EP2784409B1 (fr
Inventor
Enzo Giaretta
Stefano Verani
Davide Galletti
Ugo Romagnani
Sergio Lorenzi
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MCS Italy SpA
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MCS Italy SpA
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Publication date
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H3/00—Air heaters
    • F24H3/02—Air heaters with forced circulation
    • F24H3/025—Air heaters with forced circulation using fluid fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H2240/00—Fluid heaters having electrical generators
    • F24H2240/01—Batteries, electrical energy storage device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H2240/00—Fluid heaters having electrical generators
    • F24H2240/08—Fluid heaters having electrical generators with peltier elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H2240/00—Fluid heaters having electrical generators
    • F24H2240/12—Fluid heaters having electrical generators with thermodynamic cycle for converting thermal energy to mechanical power to produce electrical energy
    • F24H2240/122—Stirling cycles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H3/00—Air heaters
    • F24H3/02—Air heaters with forced circulation
    • F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
    • F24H3/0405—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between
    • F24H3/0411—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between for domestic or space-heating systems
    • F24H3/0417—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between for domestic or space-heating systems portable or mobile

Definitions

  • Portable heater devices which use the heat produced by the combustion of a fuel, for example, a gas or a liquid hydrocarbon, in the presence of an oxidizing agent, for example, ambient air, and one or more fans actuated by an electric motor, to generate an air flow that first skims heated surfaces of the combustion chamber, then reaches the environment to be heated.
  • a fuel for example, a gas or a liquid hydrocarbon
  • an oxidizing agent for example, ambient air
  • a forced air flow is actuated in the combustion chamber so as to obtain a suitable mixing ratio between fuel and air, thus optimizing the combustion and reducing or eliminating the CO formation, which is hazardous to the health.
  • a first type of heater inputs the combustion gaseous products into the environment to be heated together with a forced air flow passing through the combustion chamber with an excess of oxygen, so as to almost completely eliminate the CO produced.
  • This need is met by mounting a fan at an end of the chamber to push the air through the combustion chamber towards the opposite end of the same combustion chamber, to then reach the environment.
  • the heated air contains the combustion products, thus it is very important to generate an air flow with a suitable flow rate.
  • thermoelectric heaters there is a second type of heaters that have the combustion chamber insulated from the environment to be heated, and connected instead to a gas discharge duct leading to the outside of the environment to be heated.
  • an air moving system for example a fan, which pushes fresh air to externally skim the combustion chamber, to be subsequently inputted in the environment to be heated without discharge gases.
  • These known heaters comprise a starter device that primes the combustion by sparking off a spark or generating an electric arc in the combustion chamber during the supply of the gaseous fuel or the vaporized liquid fuel.
  • this spark or electric arc is generated via the electric power withdrawn from the electric grid.
  • the known portable heaters such as those described above require, throughout their standard operation, an electric power supply to supply at least the fan for the forced flow, the formation of the starting spark, which can be constant or repeated at preset time intervals for safety reasons, and optionally for the movement and injection of the fuel (such as, for example, diesel oil), for an electronic control or to serve other services such as probes, sensors, safety valves, etc.
  • the electric power required can easily reach higher values, even up to 1000 W power and more, according to the air flow rate required for operation.
  • the known portable devices sometimes comprise a tank for holding a liquid fuel or a cylinder for holding a gaseous fuel on board, so as to be independent from the point of view of the fuel supply.
  • a portable gas environmental heater having a tubular combustion chamber and a fan actuated by an electric motor, to generate a forced air flow in the combustion chamber, which tries to solve such a problem by providing the device with a rechargeable electric battery to internally supply the fan and other electric and electronic devices on board.
  • high capacity batteries are known, they are absolutely not sufficient to ensure an operative life of a suitable duration, since the powers required are high, and such a device is not capable of autonomously operating for more than a few hours. When the battery is empty, it is essential to recharge it, otherwise the device cannot be used anymore.
  • Such a device is absolutely useless in applications for which one has to stay far from electric power sources for a prolonged period. Moreover, such a device does not ensure any safety in the most difficult environmental situations.
  • the object of the present invention is to devise and provide a portable air heater that allows meeting the above-mentioned needs and at least partially obviating the drawbacks set forth above with reference to the prior art.
  • the task of the present invention is to provide a liquid or gaseous fuel air heater capable of operating continuously while generating a high forced air flow in the combustion chamber without the need for any electric power source, whether an external one, or built-up on board.
  • Another object of the present invention is to provide a portable liquid or gaseous fuel air heater that further has compact dimensions and that is easily transportable.
  • heat pipe a system that is known in a number of fields, which is capable of efficiently transferring high amounts of heat in a short time by virtue of the use of the material properties to absorb or to release a lot of heat during phase transition (latent heat).
  • a portable liquid or gaseous fuel heater to heat air according to the invention is generally indicated with the reference 1, 101, 201, 301.
  • the heater 1, 101, 201, 301 comprises a combustion chamber 10, 110, 210, 310 defined by a first delimitation wall 11, 111, 211, 311.
  • a first delimitation wall can be, for example, substantially tubular, or cylindrical, as in the case of the heaters indicated with the numbers 1, 101, 301 and with reference to the Figures 1-19 and 27-29 , or it can be substantially conical or "bell-shaped", as in the case of the heaters 201 of the Figures 20-26 .
  • the heater 1, 101, 201, 301 comprises suitable fuel adduction ducts 12, 112, 212, 312 leading to the outside of the combustion chamber 10, 110, 210, 310.
  • the heater 1, 101, 201, 301 further comprises first forced ventilation means 13, 113, 213, 313 so configured as to generate an combustive air flow 14, 114, 214, 314 through said combustion chamber 10, 110, 210, 310 in preset pre-mixing conditions between combustive air and fuel.
  • the heater 1, 101, 201, 301 comprises an energy converter 20, 50 arranged with a first thermal exchange portion 21, 51 in thermal contact with the inside of the combustion chamber (10) at a first temperature T1 and a second thermal exchange portion 22, 52 in thermal contact with the external environment 19 at a second temperature T2, so configured as to convert the temperature differential between said first temperature T1 and said second temperature T2 into energy that is suitable to supply said first forced ventilation means 13, 113, 213, 313.
  • the first thermal exchange portion 21 will be referred to also as “hot portion”, since it is suitable to be heated, and the second thermal exchange portion 22 will be referred to also as “cold portion”, since it is suitable to be cooled.
  • the energy converter 20, 50 is connected to said first forced ventilation means 13, 113, 213, 313 so as to actuate the first forced ventilation means 13, 113, 213, 313.
  • a first embodiment of the present invention is shown in the Figs. 1-11 .
  • Such an embodiment uses a gas as a fuel.
  • the combustion chamber 10 has its first delimitation wall 11 having a substantially cylindrical shape.
  • a wall can also have other shapes, for example, a prismatic shape, with any number of sides, with a sectional shape that is oval, polygonal.
  • an end 36 of the fuel adduction ducts 12 is arranged, for example, a nozzle 33 for dispensing gas into the combustion chamber.
  • a bottom plate 34 is arranged, preferably for partially closing the combustion chamber 10 so as to provide openings 35, 37 that are suitable to the insertion of oxidizing air into the combustion chamber 10.
  • such openings can comprise an annular opening 35 interposed between the bottom plate 34 and the first delimitation wall 11 of the combustion chamber 10.
  • an annular opening 35 is arranged along the outer edge of the bottom plate 34.
  • the annular opening 35 follows the inner surface of the first wall 11 of the combustion chamber.
  • the annular opening preferably has a substantially constant width.
  • the end 36 of the adduction ducts 12 is preferably in a central position with respect to the bottom plate 34; therefore, in other words, the nozzle 33 for the adduction of gas 12 into the combustion chamber 10 is surrounded by said annular opening 35.
  • annular opening allows generating an combustive air flow that internally skims the first wall 11 of the combustion chamber, separating the flame 38 from the first wall itself. This allows cooling the same wall, keeping it at an operative temperature suitable to not thermally damage the heater components.
  • the above-mentioned openings for inputting oxidizing air can comprise at least one hole 37 passing through the bottom plate 34, in positions suitable to properly feed the flame and optimize the combustion process.
  • openings adjacent to the gas dispensing nozzle can be provided, for example, an annular opening adjacent to and surrounding the nozzle 33.
  • the bottom plate 34 can be, for example, interposed between the first ventilation means 13 and the combustion chamber 10.
  • Such adduction ducts 12 can be configured to withdraw gas from a cylinder on board of the heater, or, preferably, from an external gas supply (not shown in the Figures).
  • the ventilation means comprise a first fan 13 actuated by an electric motor 39 and arranged so as to generate a first air flow 14 and direct it inside the combustion chamber 10, in particular through the openings 35, 37.
  • the fan 13 is arranged on the opposite side of the combustion chamber with respect to an output port 60 for hot air and the combustion products.
  • the first fan 13 is arranged externally to the combustion chamber 10, and it is preferably arranged on the opposite side of the bottom plate 34 with respect to the combustion chamber.
  • the heater 1 comprising second forced ventilation means 13' so configured as to generate a second forced air flow 16 so that said second flow 16 externally skims the first delimitation wall 11 of the combustion chamber 10 and so that this second heated air flow 16 is inputted to the environment after skimming the first delimitation wall 11 and after being heated.
  • these second forced ventilation means comprise a fan 13', and in particular the fan 13' coincides with the fan 13.
  • the above-mentioned implementation comprises only one fan 13 generating an air flow that divides into a first flow 14 within the combustion chamber 10, which mixes with the combustion fumes and exits the combustion chamber 10 through the output port 60 of the combustion chamber 10, and a second flow 16 of air free from combustion fumes, which externally skims the combustion chamber.
  • first ventilation means 13 and the second ventilation means 13' coincide.
  • first flow 14 and the second flow 16 are produced by distinct fans.
  • the portable heater 1 comprises a second delimitation wall 31 surrounding externally the first delimitation wall 11 thus forming an interspace 32 therebetween, so configured as to be passed through by the second forced air flow 16.
  • the second delimitation wall 31 is a continuous wall free from side openings.
  • the second delimitation wall 31 forms, together with the first delimitation wall 11, a continuous side wall chamber.
  • the second delimitation wall 31 is not formed by a net.
  • the second delimitation wall 31 is a continuous structure that prevents a gas or air from passing therethrough.
  • the energy converters used in the present invention allow exploiting a temperature differential to convert it into an energy suitable to actuate the ventilation means, for example, the fans. Therefore, such converters have a first thermal exchange portion 21, 51, which has to be put into thermal contact with the inside of the combustion chamber 10 and a second thermal exchange portion 22, 52 in thermal contact with the external environment.
  • the energy produced by these converters depends on the value of the difference between the temperatures applied to the first thermal exchange portion and the second thermal exchange portion, therefore, the higher this difference is, the more is the energy produced.
  • the energy produced by the converter will be as higher as the more the heat withdrawn from the thermal exchange portion at a lower temperature will be, i.e., the second thermal exchange portion 22, 52.
  • the portable heater comprises cooling means, for example, a fluid 40, that are so configured as to generate a third forced flow 15 of cooling fluid to exchange heat with said energy converter 20 at said second temperature T2.
  • the fluid cooling means 40 comprise third forced ventilation means 13" and said fluid is environmental air, in which said third ventilation means 13" are actuatable by said energy converter 20.
  • a third forced air flow 15 is used, to cool the second thermal exchange portion 22, 52 of the energy converter 20, 50.
  • This third forced flow 15 may, for example, but not necessarily, be generated by the first ventilation means 13.
  • the third forced flow 15 is generated by a fan 13" corresponding to the fan 13 that generates the first forced flow 14.
  • the heater comprises a conveying manifold 41 to convey the third forced flow 15 for cooling downstream the energy converter 20, for example, so that the third flow 15 is inputted in said interspace 32 and forms, or contributes to, said second forced flow 16.
  • the heater comprising a conveying manifold 41 to convey said third forced cooling flow 15 downstream the energy converter 20, so that said third flow 15 is inputted in said interspace 32 and forms, or contributes to, said second forced flow 16.
  • the cooling fluid is a cooling liquid 17, and said fluid cooling means 40 can, for example, but not necessarily, comprise a pump 45 actuatable by said energy converter 20, 50, which pump is hydraulically connected to a cooling circuit having a thermal exchange surface with said second thermal exchange portion 22, 52 of the energy converter.
  • the portable heater comprises cooling means comprising a heat pipe-type circuit 80 having an evaporation portion 81 in thermal contact with the combustion chamber 10, 110, 210, 310 and a condensation portion 82 in thermal contact with the external environment 19, in which the evaporation portion is fluidically connected to the condensation portion though a connecting duct 83.
  • the heater can comprise a first thermal exchange member or first heat sink or first radiator 23 having a first end so configured as to be brought in direct thermal contact with the first thermal contact portion 21, 51 of the converter, and a body so shaped as to exhibit a high thermal exchange surface.
  • the thermal exchange member 23 comprises an elongated metal element from which a plurality of tabs extends.
  • the thermal exchange member 23 is secured to the combustion chamber so as to internally project from said combustion chamber, in particular to be directly hit by the combustion flame.
  • the heater may comprise a second thermal exchange member or second heat sink or second radiator 25 having a first end so configured as to be brought in direct thermal contact with the second thermal contact portion 21, 51 of the converter, and a portion to exhibit a high thermal exchange surface.
  • the energy converter is a cell 26 for the direct conversion of thermal energy into electric power, in particular, a Seebeck cell.
  • the direct conversion cell 26 has two cell electric contacts or cables 27 of the cell, suitable to provide in output an electric potential difference as a function of the difference in the temperatures applied to the cell.
  • the energy converter 50 is a Stirling engine having a motion output member (not shown in the Figures).
  • the motion output member can be connected in input to a mechanical electric power generator, for example, an alternator or a dynamo (not shown).
  • a mechanical electric power generator for example, an alternator or a dynamo (not shown).
  • the energy generator can be integrated at the base of the engine body itself.
  • the associated electric generator will provide in output an electric potential that is proportional to the above-mentioned temperature difference.
  • the electric generator associated to the Stirling engine has two electric contacts or cables that are suitable to provide in output an electric potential difference that is proportional to the difference in the temperatures.
  • the heater comprises at least one electrovalve 92 for opening/closing and/or adjusting the fuel flow through the adduction duct 12.
  • the heater comprising a control unit 93 connected to the first ventilation means 13 that is so configured as to influence the mixing ratio between the oxidizing air and the fuel, so that the amount of oxidizing air inputted into the combustion chamber is higher than the amount of air necessary to the combustion.
  • control unit 93 can be connected to drive also the second ventilation means 13' and, in addition or alternatively, to said cooling means 40.
  • the heater 1, 101, 201, 301 comprises a flame sensor (not shown), so configured as to detect the presence of a flame in the combustion chamber and to provide in output a corresponding signal.
  • the flame sensor can be connected to the control unit 93.
  • control unit 93 can be connected to drive the adduction pump and the adjustment valve 93, beside to igniters 79, sensors, other pumps, and other consumptions (not shown).
  • the heater comprises a managing unit 94 for managing the electric power produced by the energy converter 20, 50, and an electric connection 96 suitable to be connected to a starting battery 95, said managing unit 94 being electrically connected to said energy converter 20, 50, to said control unit 93, and being connectable to said starting battery 95, said managing unit being configured so that, upon reaching a preset threshold value of energy produced by the energy converter (20, 50), the energy supply by the starting battery 95 is discontinued.
  • control unit 93 and the above-mentioned energy managing unit 94 can be mutually integrated, eg., on a single electronic circuit.
  • the starting battery can be connected to continuously supply the first ventilation means 13, and optionally all the other electric consumptions on board, in which said starting battery is connected to the converter 20, 50 to be continuously recharged.
  • the heater is supplied with a liquid fuel, particularly diesel oil.
  • Such a heater comprises a fuel tank 199 on board, for example, arranged underneath the combustion chamber 110.
  • This heater differs from the gas heater of the preceding figures in the following aspects.
  • the combustion chamber 111 opens to a chimney 198 configured to outflow the combustion fumes into a duct, which preferably opens to the outside of the environment to be heated. In this manner, the fumes produced by combustion are prevented from being inputted into the environment to be heated.
  • first ventilation means 113 generate a first forced combustive air flow 114 to input it into the combustion chamber 110, through openings 35 at an end of the combustion chamber 110.
  • the heater 201 comprises a front grill 297, which, when overheated by the flame in the combustion chamber 210, heats an environment by irradiation.
  • this heater uses a liquid fuel, for example, diesel oil, as for the second embodiment.
  • first ventilation means 213 generate a first forced combustive air flow 214 in the combustion chamber 210, into which the fuel is also inputted.
  • This heater differs from the gas heater of the first embodiment in the following aspects.
  • the combustion flame 38 is directly oriented against the front grill 297, thus heating it to temperatures belonging to the "red heat” zone.
  • the grill irradiates heat only in an area on which the radiations emitted by the front grill 297 are projected by irradiation.
  • this type of heater performs a very powerful selective heating and with a reduced movement of air, which is suitable in particular cases.
  • the tubular combustion chamber 210 has a conical shape so as to optimize the temperature distribution and the diffusion of heat within the combustion chamber 210.
  • a fourth embodiment is shown in Figs. 27 to 29 .
  • the heater 301 is suitable to produce high hot air flow rates.
  • first ventilation means 313 are present, which generate a first forced oxidizing air flow 314 in the combustion chamber, for example, through an injection head 323
  • a second forced flow 316 is instead generated by second ventilation means 313" that are, in particular, but not necessarily, different from the first ventilation means 313.
  • the combustion chamber 210 has an output duct 362, from which a tube bundle 363 originates, which tube bundle opens to a discharge manifold of the combustion fumes 364.
  • the second forced flow 316 before going out from the output ports 360 and 361, is heated also by skimming the tube bundle 363.
  • At least one thermal energy converter is present, which exploits the temperature difference between the combustion chamber and the lower environmental temperature to produce electric power and/or kinetic energy to actuate the first ventilation means 13, 113, 213, 313, for example, a fan actuated by an electric motor to generate a first forced combustive air flow sent into the combustion chamber, without requiring any electric power external supply.
  • a method to heat an environment through a portable gaseous or liquid fuel heater comprising the steps of:
  • a step is provided of:
  • a fan actuation step (503) takes place, which fans generate an air flow (508) in the combustion chamber.
  • an electric arc (504) to spark a starting off spark takes place, the opening of an optional electrovalve (505) to input a fuel 506 into the combustion chamber, and starting (507) an injection pump 180 of the fuel or, alternatively, a fuel supply by Venturi effect.
  • a fuel flow (509) is thus started in the combustion chamber.
  • a flame sensor arranged in the combustion chamber can perform a verification step (511) for the presence of a flame inside the combustion chamber.
  • a turning off step (512) of the heater is carried out, for example, comprising a step of interrupting the fuel flow by actuating the above-mentioned electrovalve.
  • the flame generation (510) causes the heating (513) of the first thermal exchange portion 21 of the converter 1, 101, 201, 301.
  • a cooling step (514) of the second thermal exchange portion 22 of the converter is operated, in order to make the temperature difference between the first portion 21, 51 and the second portion 22, 52 of the converter 20, 50 as high as possible, so as to obtain in output a potential difference as high as possible.
  • This cooling step (514) is carried out by withdrawing heat (516) to the second portion 22, 52 by means of a cooling flow 40 in conditions of thermal exchange with the second portion 22, 52, for example, through the third forced flow 15, described above, or through a liquid cooling circuit 17, cooling means of the heat pipe-type 80 as described above.
  • Heating the first thermal exchange portion 21, 51 and the simultaneous cooling of the second thermal exchange portion 22, 52 produces a temperature difference relative to each other (517), also referred to as a thermal "delta".
  • the temperature difference is directly converted into electric power (518).
  • the converter is a heat engine converting a temperature difference into kinetic energy, such as, for example, a Stirling engine 50, an intermediate step takes place, of production of kinetic energy (519) take place.
  • the kinetic energy outputted by the thermal machine can be directly used to move the ventilation means.
  • a mechanical generator (520) of electric power is associated to the thermal machine, for example, a dynamo or an alternator.
  • the electric power, directly or indirectly generated by the converter 20, 50, is subjected to an optional step of current stabilization (521).
  • a verification step (522) is carried out, to verify whether the value of the electric power produced by the converter 20, 50 by virtue of the temperature difference exceeds the value of the powers required by the consumptions on board of the heater, thus forming an electric power excess.
  • the verification step (522) is to verify whether the value of the electric power produced by the converter 20, 50 by virtue of the temperature difference exceeds a preset threshold value, thus forming an electric power excess.
  • the electric power produced by the converter 20, 50 does not exceed the value of the power required by the consumptions on board of the heater, or the threshold value, the electric power produced is used to self-supply the heater, in particular, to electrically supply all the ventilation means and the control unit and the managing unit.
  • the electric power produced is used to supply the cooling means and/or the supplying pump.
  • the heater according to the invention is self-supplied, does not requires an external electric power for its operation, and ensures a proper oxidizing air flow in the combustion chamber, reducing the CO produced by the combustion.
  • a step (523) is performed, of sending this excess to a recharging device of a buffer electric battery (524).
  • this buffer electric battery 524 corresponds to the starting battery 95 described above.
  • the energy produced by this buffer battery is used to form or concur to the input energy 502 described above.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Direct Air Heating By Heater Or Combustion Gas (AREA)
EP13161801.9A 2013-03-28 2013-03-28 Appareil de chauffage à combustible portable pour chauffer l'air et procédé permettant de chauffer l'air à travers ledit dispositif de chauffage Not-in-force EP2784409B1 (fr)

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EP13161801.9A EP2784409B1 (fr) 2013-03-28 2013-03-28 Appareil de chauffage à combustible portable pour chauffer l'air et procédé permettant de chauffer l'air à travers ledit dispositif de chauffage

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EP13161801.9A EP2784409B1 (fr) 2013-03-28 2013-03-28 Appareil de chauffage à combustible portable pour chauffer l'air et procédé permettant de chauffer l'air à travers ledit dispositif de chauffage

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EP2784409B1 EP2784409B1 (fr) 2017-01-18

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Cited By (2)

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EP3093578A1 (fr) * 2015-05-14 2016-11-16 MCS Italy S.p.A. Réconducteur d'air combustible fluide portable
ITUB20151243A1 (it) * 2015-05-26 2016-11-26 Clementi S R L Caldaia a cogenerazione con moduli termoelettrici

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Publication number Priority date Publication date Assignee Title
RU193704U1 (ru) * 2018-03-23 2019-11-11 Геннадий Яковлевич Вайгандт Электрический тепловентилятор (тепловая пушка) для монтажа натяжных потолков
USD963817S1 (en) 2020-12-14 2022-09-13 Milwaukee Electric Tool Corporation Portable heater

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DE3148162A1 (de) * 1981-12-05 1983-06-09 GC-Gas Control Meßgeräte für Gasflaschen GmbH, 4000 Düsseldorf Gasheizung
JPS60134150A (ja) * 1983-12-23 1985-07-17 Mitsubishi Electric Corp 温風暖房機
US5509604A (en) * 1992-08-26 1996-04-23 Goldstar Co., Ltd. Chargeable fan heater
US20130008423A1 (en) * 2006-12-12 2013-01-10 Enerco Group, Inc. Forced air heater including on-board source of electric energy

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3148162A1 (de) * 1981-12-05 1983-06-09 GC-Gas Control Meßgeräte für Gasflaschen GmbH, 4000 Düsseldorf Gasheizung
JPS60134150A (ja) * 1983-12-23 1985-07-17 Mitsubishi Electric Corp 温風暖房機
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3093578A1 (fr) * 2015-05-14 2016-11-16 MCS Italy S.p.A. Réconducteur d'air combustible fluide portable
ITUB20151243A1 (it) * 2015-05-26 2016-11-26 Clementi S R L Caldaia a cogenerazione con moduli termoelettrici
WO2016189375A1 (fr) * 2015-05-26 2016-12-01 Clementi S.R.L. Chaudière de cogénération de chaleur de d'électricité pourvue de modules thermoélectriques

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