WO2020144617A1 - Échangeur de chaleur - Google Patents

Échangeur de chaleur Download PDF

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Publication number
WO2020144617A1
WO2020144617A1 PCT/IB2020/050147 IB2020050147W WO2020144617A1 WO 2020144617 A1 WO2020144617 A1 WO 2020144617A1 IB 2020050147 W IB2020050147 W IB 2020050147W WO 2020144617 A1 WO2020144617 A1 WO 2020144617A1
Authority
WO
WIPO (PCT)
Prior art keywords
coil
tank
exchanger according
exchanger
dispenser
Prior art date
Application number
PCT/IB2020/050147
Other languages
English (en)
Inventor
Andrea ERBACCI
Original Assignee
Erbacci Andrea
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 Erbacci Andrea filed Critical Erbacci Andrea
Publication of WO2020144617A1 publication Critical patent/WO2020144617A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/0206—Heat exchangers immersed in a large body of liquid
    • F28D1/022—Heat exchangers immersed in a large body of liquid for immersion in a natural body of water, e.g. marine radiators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/047—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 bent, e.g. in a serpentine or zig-zag
    • F28D1/0471—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 bent, e.g. in a serpentine or zig-zag the conduits having a non-circular cross-section
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2303/00—Details of devices using other cold materials; Details of devices using cold-storage bodies
    • F25D2303/08—Devices using cold storage material, i.e. ice or other freezable liquid
    • F25D2303/081—Devices using cold storage material, i.e. ice or other freezable liquid using ice cubes or crushed ice
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2331/00—Details or arrangements of other cooling or freezing apparatus not provided for in other groups of this subclass
    • F25D2331/80—Type of cooled receptacles
    • F25D2331/811—Pour-throughs
    • 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
    • F28D2021/0042—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for foodstuffs

Definitions

  • the present invention concerns a heat exchanger.
  • the present invention refers to a heat exchanger for fluids.
  • the present invention concerns a heat exchanger for fluids provided with a heat tank with temperature that can be defined as required and can be used in combination with machines for the production of drinks. DESCRIPTION OF THE STATE OF THE ART
  • the cool drinks sector and more in particular drinks produced by hot water heated to a given temperature passing through a ground mass substance consisting of crumbled leaves or reduced into another form containing active ingredients and/or aromas such as, for example but not limited to, coffee, tea or other, users require the cooling phase to be as short as possible to prevent the oily substances of the active ingredients/aromas from deteriorating more or less rapidly, developing aromas other than those released at the time of production.
  • active ingredients and/or aromas such as, for example but not limited to, coffee, tea or other
  • the drink required is chilled coffee, barley or tea
  • the production temperature must be lowered for example by collecting the freshly produced coffee, barley or tea in a container which will then be transferred to an adequately refrigerated environment for conservation until required.
  • Others prefer to minimize the time separating the drink production phase from the serving phase by pouring or delivering the freshly prepared coffee, barley, tea or herbal tea directly onto ice and collecting the drink from below the ice.
  • a simple heat exchanger is desirable, which is practical and inexpensive to use, in which the heat exchange between the drink and the environment at serving temperature takes place as quickly and as extensively as possible, so as to minimize the interval between conclusion of the drink production phase and the moment of consumption, in order to limit and if possible overcome the drawbacks typical of the art illustrated above.
  • the object of the applicant is to define a new functional, hygienic and inexpensive product that can be combined with coffee machines or machines for the production of coffee, barley, tea, herbal teas or similar without requiring any modification of said machines .
  • the present invention concerns a heat exchanger.
  • the present invention refers to a heat exchanger for fluids.
  • the present invention concerns a heat exchanger for fluids provided with a heat tank with temperature that can be defined as required and used in combination with machines for the production of drinks.
  • a device which allows the temperature of a fluid to be modified and the main characteristics will be described in at least one of the following claims.
  • a heat exchanger which can be combined with a drinks dispensing machine
  • said exchanger is provided with a tank delimited peripherally by a wall provided at the top with an annular edge; heat exchanger means provided with an inlet station and an outlet station connected in a fluid-tight manner by at least one coil; each said coil being housed inside said tank; said inlet station comprising a collecting vessel open at the top for each said coil.
  • said outlet station comprises a dispenser having elongated shape for each said coil, where each said dispenser is obtained in said base and terminates with a nozzle.
  • a supporting member is associated in a given manner with said base at a lower height with respect to each said nozzle and shaped to extend peripherally to a vertical projection of the respective said nozzle.
  • said supporting member is step-shaped and coupled to said base in a permanent or selectively releasable manner.
  • each said coil has a lowered vertical section and greater horizontal extension.
  • each said coil has a longitudinal partition designed to obtain two fluid-tight separate adjacent channels.
  • each said channel corresponds to a respective said collecting vessel and a dispenser terminating with a respective said nozzle .
  • said tank is symmetrical with respect to a median plane to house two substantially helical coils having identical pitch and vertically offset; a collecting member being obtained at the top and divided into two symmetrically identical parts by a median partition to form two said collecting vessels, each hydraulically connected to a relative said dispenser through a said coil; the two said dispensers having the respective said nozzles arranged symmetrically with respect to said median plane.
  • each said coil is made of metal by calendering or casting and has a thickness ranging from 0.30 mm to 1.50 mm.
  • a cover is provided shaped to fully close said tank.
  • a cover is provided shaped to close said tank with the exception of at least one said vessel.
  • At least one said coil is made of material with thermal conductivity ranging between 5 and 390 W/mK.
  • said tank is provided with a discharge cock.
  • said tank is provided with an adjustable temperature sensor.
  • figure 1 is a schematic perspective view of some characterizing components according to the present invention.
  • figure 2 is an orthogonal sectional view of figure 1 on an enlarged scale and with parts on view for the sake of clarity;
  • figure 3 schematically illustrates a variation of figure 2 with parts removed for the sake of clarity
  • figure 4 illustrates a cross-section of a detail of figure 2
  • figure 5 illustrates a variation of the detail of figure
  • figure 6 illustrates a variation of figure 2 in which the detail of figure 5 is inserted
  • figure 7 is a plan view of a variation of figure 1;
  • figure 8 is a schematic perspective view that illustrates the shape of figure 7.
  • the number 1 indicates, overall, a heat exchanger which can be selectively combined with, for example but not limited to, a drinks dispensing machine whenever Lhe drinks produced have Lo be served at a temperature different from the dispensing temperature.
  • the exchanger 1 which allows the temperature of a fluid to be modified, is provided with a tank 10 designed to contain a substance at a different temperature from that of the drink dispensed, for modifying the temperature thereof without direct contact, as will become clearer from the following description.
  • the exchanger 1 is provided with heat exchanger members 20 which comprise an inlet station 22 and an outlet station 24 connected to each other in a fluid-tight manner.
  • the exchanger members 20 comprise at least a coil 30 having a plurality of loops 32.
  • the coil 30 is geometrically shaped in a similar manner to the tank 10.
  • the tank 10 is cylindrical, without limiting the scope of the present invention, the coil has a plurality of substantially identical cylindrical loops 32 without limiting the scope of the present invention.
  • the coil 30 is positioned between the inlet station 22 and the outlet station 24.
  • the tank 10 has a continuous side wall 12 which extends upwards from a respective base 14 and is delimited at the top by an annular edge 16 placed at a first given height Q1 with respect to the base 14.
  • the tank 10 is shown with a cylindrical shape, for the sake of practicality, and also the coil 30.
  • both the tank 10 and the coil 30 can be shaped according to different geometries to meet given thermodynamic requirements.
  • the tank 10 can have the respective side wall 12 shaped similar to a truncated cone, with the smaller base overlapping the larger base or vice versa; similarly the coil 30 can be shaped geometrically similar to the side wall 12 and therefore in a conical manner with the loops 32 arranged axially at a fixed pitch or defined as required.
  • the inlet station 22 comprises a vessel 222 geometrically similar to a funnel, designed to collect liquid to be feed to the coil 10.
  • the vessel 222 is delimited at the top by an inlet mouth 224 placed at a height that substantially coincides with a height of the edge 16 of the tank 10.
  • the outlet station 24 comprises a dispenser 242 with elongated tubular shape; said dispenser 242 is placed at a level substantially identical to that of the base 14 and terminates with a respective nozzle 244.
  • Each vessel 222 is delimited at the top by an inlet mouth 224 placed at a height substantially coinciding with the first height Q1 of the annular edge 16.
  • the exchanger 1 has a single dispenser 242 provided with a nozzle 244, connected in a fluid-tight manner to a coil 30 also connected in a fluid- tight manner to a vessel 222 designed to channel the fluid L into the coil 30, it is possible to provide the exchanger 1 with two coils 30, each of which will be provided with a respective vessel 222 and terminating in a respective dispenser 242.
  • the exchanger 1 has a step-shaped supporting member 40 associated with the base 14 in a given manner, at a lower height than the height of the nozzle 244 and shaped to extend peripherally around a vertical projection of the respective nozzle 244.
  • the supporting member 40 can house a container like a coffee cup, to collect by gravity, therefore on a naturally vertical path, the liquid dispensed by the nozzle 244, said liquid being collected inside the container.
  • the supporting member 40 can be coupled to the base 14 either permanently or in a selectively releasable manner, in this case to make the use of the exchanger 1 more practical.
  • the supporting member 40 can be built so as to be removable, both to make it more practical to store and to facilitate cleaning thereof.
  • the coil 30 is connected to the tank 10 and to the dispenser 242 in a releasable manner, for example but without limitation by threaded connections of known type and not illustrated for the sake of economy of drawing. In this way, it is easier to carry out maintenance on and to sanitize the coil 30, the tank 10 and the dispenser 242.
  • the exchanger 1 comprises a cover 50 which can be used to close the tank 10.
  • Said cover 50 can be shaped so as to fully close the tank 10 or present an opening 52 interfaceable with the vessel 222 and a plug 54 designed to selectively close the opening 52.
  • the cover 50 can be used to isolate only the content of the tank 10 from the external environment, leaving the vessel 222 selectively accessible.
  • the cover 50 has a handle 51, drawn with a broken line, the purpose of which is to allow handling of said cover 50.
  • the exchanger 1 will be preferably produced without devices able to control the temperature of the substance oonLained in the Lank 10, and given he particular demand for cold drinks, like coffee or tea, the substance used to fill the tank 10 will be of a cooling type, without limiting the scope of the present invention.
  • the use of ice produced by solidification of water is preferred, due to the particular physical behaviour of the solidified water during its liquefaction (maintenance of temperature constant at 0°C), even if liquid water at low temperature can also be used, previously cooled in a refrigerator, as adhesion of the water to the outer walls of the coil 30 is uniform, unlike ice.
  • each coil 30 must be made preferably of material with high thermal conductivity so that the heat exchange between the liquid dispensed is established as soon as the liquid engages the coil 30 downstream of the vessel 222, maximising the temperature variation between the inlet station 22 and the outlet station 24.
  • temperature variation will be negative if the fluid/liquid contained in the tank 10 is at a temperature lower than the temperature of the liquid dispensed, vice versa if the temperature of the fluid/liquid contained in the tank 10 is higher than the temperature of the liquid dispensed.
  • the tank 10 is preferably, but without limitation, built in stainless steel or any other material which is practical and hygienic to use. If deemed useful, the side wall 12 can be insulated. Furthermore, if deemed useful, the tank 10 can be provided with a battery-powered monitoring device 18 comprising a temperature sensor 181, illustrated schematically in figure 1. In use, the sensor 181 will measure the temperature of the fluid/liquid contained in the tank 10 and the monitoring device 18 can be calibrated to any threshold temperature; when said temperature is reached, the device 18 can emit a sound or light signal depending on the nature of said device 18. Said signal will inform the user when the fluid/liquid is no longer suitable for use and therefore needs to be replaced.
  • a battery-powered monitoring device 18 comprising a temperature sensor 181, illustrated schematically in figure 1.
  • the sensor 181 will measure the temperature of the fluid/liquid contained in the tank 10 and the monitoring device 18 can be calibrated to any threshold temperature; when said temperature is reached, the device 18 can emit a sound or light signal depending on the nature of said device 18. Said signal will
  • the coil 30 has to be produced with material that combines high thermal conductivity, practicality of use and hygiene, given that the exchanger 1 can be used to cool freshly dispensed coffee. Naturally, in said case and in similar cases in which the liquid dispensed is consumed by humans or animals, the coil 30 will have to be delimited internally by material suitable for use in the food sector. In said regard, it may be useful to specify that each coil 30 has been shown in the form of a cylindrical spiral made with a cylindrical tube with constant diameter, without specifying the procedure for the production of said tube.
  • the tube of the coil 30 is metallic and assuming it has been bent by calendering as the simplest technological solution, this process must be carried out considering some specific parameters which link the mechanical characteristics of the metal used (elastic modulus, mechanical strength and deformability) to the dimensions of the respective cross-section (internal and external diameter) ; otherwise, the metal used could manifest structural failure due to given combinations of diameter of the coil 30 and cross-section of the tube with which it is produced.
  • the material of the coil 30 can be chosen from stainless steel, the mean thermal conductivity value of which is 50 W/mK, copper, the thermal conductivity value of which is 390 W/mK, or other materials having similar characteristics. In the case of copper, or other materials potentially contaminating the liquids with which they come into contact, it may be useful to coat the coil 30 internally with ceramic material or with other chemically inert material having analogous behaviour.
  • the tank 10 of the exchanger 1 can be provided with a discharge cock 60, illustrated schematically in figure 1, located on the bottom of the side wall 12 proximal to the base 14 if, in use, it is necessary to empty the tank 10 of the liquefied ice or of the liquid or to replace it with an identical substance at a lower temperature or to sanitize the exchanger.
  • a discharge cock 60 illustrated schematically in figure 1, located on the bottom of the side wall 12 proximal to the base 14 if, in use, it is necessary to empty the tank 10 of the liquefied ice or of the liquid or to replace it with an identical substance at a lower temperature or to sanitize the exchanger.
  • the circular shape of the cross-section of the tube which composes each coil 30, regardless of the technology with which it has been produced, is not particularly effective in relation to thermal exchange.
  • the drink is produced and fed to the vessel 222 with a modest flow rate and such as to bathe exclusively the bottom of each cross- section of the tube that composes the coil 30 to which it has been delivered without ever completely filling any section.
  • Each coil 30 is in fact continuously crossed through by the drink which, in use, flows continuously and directly to the relative nozzle 244, resulting in inefficient thermal exchange between the drink and the substance that fills the tank 10 enveloping the loops 32 of the coil 30.
  • the coils are produced by metal casting.
  • the objective is to produce coils with cross-section having thickness ranging from 0.30 mm to 1.50 mm to optimize the heat exchange between the drink that passes through each coil 30 and the substance that externally bathes each said coil 30.
  • the coil 30 was produced with very squashed tube, the possibility of providing a longitudinal partition 31 inside the tube 30' could be evaluated, as can be seen in figure 5, creating two adjacent and hydraulically distinct channels 33 and 33' inside the tube 30'.
  • Said coil 30 can feed a split portion 34 in which the channels 33 and 33' of the coil 30 are physically separate, each feeding a dispenser 242, and therefore feeding two distinct nozzles 244, as can be seen in figure 6. This allows the quantity of drink produced to be split into two parts of substantially identical volume.
  • each channel 33 of the coil could correspond to a vessel 222 and, for example but without limitation, the exchanger 1 could be used below a double spout (known and not illustrated) of a coffee machine, allowing two chilled coffees to be prepared simultaneously.
  • a double spout known and not illustrated
  • said further embodiment is not shown, it being deemed sufficiently described by what is illustrated here, also by figure 6 alone.
  • said coil could be produced in an elongated helical shape where the curved portions for changing the direction of the drink are connected to each other by a rectilinear section with length that can be defined as required, considering the total dimensions of the tank 10 of the exchanger 1.
  • an exchanger 1 is illustrated having an elongated and symmetrical shape with respect to a median plane M.
  • the exchanger 1 is provided with two coils 30A and 30B substantially inspired by the threads of a double-threaded screw, which allows the exchanger 1 to be provided with two dispensers 242/nozzles 244.
  • the vessels 222 are made in a simple manner by closing a curved part of the tank 10 at the top to form a collecting member 2220.
  • Said collecting member comprises a flat element 2224 positioned below the annular edge 16 of the wall 12 and shaped to coincide internally with the wall 12 of the tank 10.
  • Said flat element 2224 could be inclined so as to give the collection member 2220 a maximum depth at the deliveries 36A and 36B of the coils 30D and 30B.
  • the collection member 2220 is provided with a vertical partition 2222 which lies on the median plane M and forms the vessels 222 and 222' of the exchanger 1 and a further vertical containment wall 2228, transverse to the median plane M, which closes the vessels 222 and 222' at the front formed by the vertical partition 2222 in position towards the centre of the exchanger 1.
  • the initial and final loops 32A and 32B (positioned at the vertical ends of the exchanger 1) of the coils 30A and 30B contained inside the tank 10 will have curves, appropriately shaped to be hydraulically connected to the vessels 222 and 222' and, naturally, to the dispensers 242 and 242' .
  • the coils 30A and 30B are provided with a different number of loops 32 ⁇ and 32B so that only the coil 30B has two curves 35B, without limiting the scope of the present invention.
  • the coil 30A with the greatest number of loops will provide greater cooling of the drink supplied to it through the respective vessel 222' .
  • Figure 8 illustrates the layout of the tubes of the two coils 30 and the path from the respective vessels 222 to the respective nozzles 244. This solution is all the more advantageous the more the tube 30' with which the coils 30 are made has a lowered section as in figure 4, since this optimizes the cooling volume in the tank 10. Furthermore, in this way, the volume available for filling with ice or water inside the tank 10 is enlarged, thus reducing the frequency with which the water (or ice) inside the tank 10 has to be replaced.
  • the heat exchanger 1 described above in each of the embodiments described above with reference to figures 1-8, therefore has a particularly simple structure and components that can be removed in order to be thoroughly sanitized and therefore effectively and inexpensively solves the technical problem described above.
  • Base 40 Supporting member 16: Edge 50: Cover
  • Outlet station 60 Discharge cock 30: Coil 181: Temperature sensor 30' : Tube 222: Vessel
  • Coil 224 Inlet mouth
  • Loop 2220 Collecting member
  • Loop 2222 Vertical partition 33: Channel 2224: Flat element 33' : Channel 2228: Vertical wall

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ocean & Marine Engineering (AREA)
  • Devices For Dispensing Beverages (AREA)
  • Apparatus For Making Beverages (AREA)

Abstract

L'invention concerne un échangeur de chaleur (1) muni d'un réservoir (10) pour un fluide (L) et d'éléments (20) d'échangeur de chaleur contenus dans le réservoir (10), comprenant une station d'entrée (22) et une station de sortie (24) reliées de manière étanche aux fluides ; le réservoir (10) comporte une paroi latérale continue (12) s'étendant vers le haut à partir d'une base respective (14) et délimitée au niveau de la partie supérieure par un bord annulaire (16) ; les éléments (20) d'échangeur comprennent un serpentin (30) agencé entre la station d'entrée (22) et la station de sortie (24) ; la station d'entrée (22) comprend un récipient (222) délimité au niveau de la partie supérieure par un orifice d'entrée (224).
PCT/IB2020/050147 2019-01-10 2020-01-09 Échangeur de chaleur WO2020144617A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT202019000000094U IT201900000094U1 (it) 2019-01-10 2019-01-10 Scambiatore di calore
IT202019000000094 2019-01-10

Publications (1)

Publication Number Publication Date
WO2020144617A1 true WO2020144617A1 (fr) 2020-07-16

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IT (1) IT201900000094U1 (fr)
WO (1) WO2020144617A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982003119A1 (fr) * 1981-03-09 1982-09-16 Bruce E Delau Dispositif portatif de refroidissement et de chauffage rapide
WO2004070294A1 (fr) * 2003-02-10 2004-08-19 Dieter Marx Dispositif pour refroidir des produits alimentaires liquides
EP2478803A1 (fr) * 2011-01-25 2012-07-25 Imper S.p.A. Machine pour préparer des boissons chaudes et froides
WO2016029112A2 (fr) * 2014-08-22 2016-02-25 Caswell Michael Robert Dispositifs de refroidissement de boissons et systèmes et procédés associés
WO2018066998A1 (fr) * 2016-10-06 2018-04-12 Sarandev Singh Bal Appareil refroidisseur-chauffage instantané multi-usage

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982003119A1 (fr) * 1981-03-09 1982-09-16 Bruce E Delau Dispositif portatif de refroidissement et de chauffage rapide
WO2004070294A1 (fr) * 2003-02-10 2004-08-19 Dieter Marx Dispositif pour refroidir des produits alimentaires liquides
EP2478803A1 (fr) * 2011-01-25 2012-07-25 Imper S.p.A. Machine pour préparer des boissons chaudes et froides
WO2016029112A2 (fr) * 2014-08-22 2016-02-25 Caswell Michael Robert Dispositifs de refroidissement de boissons et systèmes et procédés associés
WO2018066998A1 (fr) * 2016-10-06 2018-04-12 Sarandev Singh Bal Appareil refroidisseur-chauffage instantané multi-usage

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Publication number Publication date
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