EP2772704A1 - Kühlsystem - Google Patents

Kühlsystem Download PDF

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Publication number
EP2772704A1
EP2772704A1 EP13157108.5A EP13157108A EP2772704A1 EP 2772704 A1 EP2772704 A1 EP 2772704A1 EP 13157108 A EP13157108 A EP 13157108A EP 2772704 A1 EP2772704 A1 EP 2772704A1
Authority
EP
European Patent Office
Prior art keywords
cooling
reactor
chamber
cooling device
plane
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.)
Withdrawn
Application number
EP13157108.5A
Other languages
English (en)
French (fr)
Inventor
Björn FLEMSÄTER
Ingemar Halin
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.)
Dometic Holding AB
Original Assignee
Dometic Holding AB
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 Dometic Holding AB filed Critical Dometic Holding AB
Priority to EP13157108.5A priority Critical patent/EP2772704A1/de
Priority to PCT/EP2014/053280 priority patent/WO2014131679A1/en
Publication of EP2772704A1 publication Critical patent/EP2772704A1/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • F25D11/027—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures of the sorption cycle type
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B17/00—Sorption machines, plants or systems, operating intermittently, e.g. absorption or adsorption type
    • F25B17/08—Sorption machines, plants or systems, operating intermittently, e.g. absorption or adsorption type the absorbent or adsorbent being a solid, e.g. salt
    • 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
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/12—Portable refrigerators

Definitions

  • the invention relates to cooling, in particular of temperature-sensitive products.
  • the inventors have realized that an affordable and easy-to-use stove concept fueled by a bio-combustible liquid, such as ethanol or methanol, may replace traditional firewood cook stoves as well as dangerous kerosene stoves. Combustion of ethanol and methanol results in almost no toxic flue gases, while being obtainable from renewable resources or natural gas. Further, it has been realized that waste heat from a burner in such a stove concept may be used for regenerating a portable cooling device that may provide cooling in a simple cooling box.
  • a bio-combustible liquid such as ethanol or methanol
  • a cooling device capable of batch cooling the contents of a cooling box.
  • the cooling box is designed to receive cooling device and utilize its cooling capacity.
  • the heating device is designed to receive the cooling device and regenerate it for another batch cooling.
  • the cooling device is designed to provide cooling in the cooling box and to be regenerated by the heating device.
  • the cooling device, the cooling box and the heating device are separate units that may be handled separately of eachother.
  • a portable cooling device comprising a fluid, a reactor containing a sorbent capable of sorption and desorption of the fluid and a chamber for condensation and evaporation of the fluid, said reactor and said chamber being connected such that the fluid may flow between them.
  • the fluid may comprise water and in such case, the sorbent is capable of sorption and desorption of gaseous water.
  • the sorbent may be an absorbent or an adsorbent. Examples of sorbents are hygroscopic salts and microporous material, such as zeolite.
  • the resorption process drives the cooling inside the box.
  • the pressure in the cooling device is below atmospheric pressure to facilitate the thermodynamic processes therein.
  • the pressure may be such that the fluid has a boiling point between -10 °C and +5 °C, such as about 0 °C.
  • a suitable sorption/desorption process is climateWell's technology using a hygroscopic salt and an appropriate liquid, such as LiCl-water, see e.g. WO0037864 and US 2009/0249825 .
  • the cooling device of the first aspect is an independent unit that may be easily moved by the user between a heating source and a cooling box.
  • the cooling device is normally of a size that is easy to handle for the user.
  • a closable valve is arranged in the connection between the reactor and the chamber.
  • the cooling capacity may be stored as in a battery after regeneration of the cooling device. Only after the valve has been opened, the cooling action begins as fluid evaporating in the chamber is allowed to flow into the reactor.
  • the cooling capacity may be employed when needed and not only shortly after regeneration.
  • the reactor extends in a first plane and the chamber extends in a second plane, which is approximately parallel to the first plane.
  • the chamber allows the chamber to be located inside a cooling box while the reactor, which needs cooling, is located on the outside. Further, it allows the reactor to be placed close to a heating source while the chamber, which needs cooling during the regeneration, is below the heat source and thus further away from it.
  • approximately parallel planes refers a maximum angle between the planes of 6° or less, preferably 5° or less, more preferably 3° or less.
  • the reactor and/or the chamber are preferably elongated, such as tube-shaped.
  • elongated reactor may for example be curved or bent such that it is adapted to at least partly encircle a heat source, such as a flame.
  • a heat source such as a flame.
  • the reactor may cover a relatively large area around the flame of a burner in a stove, while a cooking utensil is placed above the flame.
  • the heat not transferred to the cooking utensil i.e. the heat not used for cooking (“waste heat"), may be taken up by the reactor.
  • such a shape provides for efficient use of the available fuel.
  • the elongated chamber may be curved or bent that it is adapted to at least partly encircle the burner providing the flame.
  • a chamber shape provides for efficient use of the space already occupied by a stove on which the burner is arranged.
  • the rounded or bent shape provides for increased safety as no parts of the cooling device points out from the stove and risks that the stove and/or cooking utensil is tilted during cooking.
  • the reactor and/or the chamber may be ring-shaped, such that the reactor may form a ring around the flame and the chamber may form a ring around the burner.
  • the elongated reactor and/or chamber may have the form of a full/continuous ring or an interrupted/non-continuous ring.
  • the reactor and/or chamber is/are claw-shaped.
  • the reactor may have an oval shape such that some parts of the reactor may come closer to the flame and thus be exposed to a higher temperature.
  • the oval reactor may also be full/continuous or interrupted/non-continuous (claw-shaped).
  • the reactor may be bent or curved to a larger degree than the chamber, which is to be cooled during regeneration.
  • the elongated reactor may define a first area, which is smaller than a second area defined by the elongated chamber.
  • the second area may be at least 30 %, such as at least 50 %, such as at least 70 %, larger than the first area.
  • the first area being smaller than the second area means that the elongated reactor is shorter than the elongated chamber.
  • the inner volume of the reactor shall be at least the same as, but preferably larger than, the inner volume of the chamber, which means that the average cross section area of the reactor will be larger than the average cross section area of the chamber.
  • the cross section area of the elongated chamber along at least half of its length may be 2-9 cm 2 , such as 2-6 cm 2 , such as 3-5 cm 2 and the cross section area of the elongated reactor along at least half of its length may be 2-10 cm 2 , such as 2.5-7 cm 2 , such as 3-6 cm 2 .
  • the volume of the chamber may be 100-500 cm 3 , such as 150-300 cm 3 and the volume of the reactor may be 100-700 cm 3 , such as 150-500 cm 3 , such as 150-400 cm 3 .
  • the inner volume of the reactor may be larger than the inner volume of the chamber, such as at least 10 % larger.
  • the cooling device may comprise at least one handle.
  • it may comprise at least two handles radially extending from the chamber.
  • the cooling device may be safely handled with both hands.
  • the handle may be arranged at the connection between the reactor and the chamber.
  • Each handle is preferably provided with insulation to reduce heat transfer from the cooling device to a hand holding the handle.
  • an openable cooling box comprising insulating walls forming an interior space for cooling, wherein a portion of a wall of the cooling box is adapted to receive a portable cooling device comprising a reactor extending in a first plane, an evaporation and condensation chamber extending in a second plane, which is approximately parallel to the first plane and a connection between the reactor and the chamber, such that, in a closed configuration of the cooling box, heat may be transferred from the interior space to the chamber and from the reactor to an exterior cooling source, such as ambient air.
  • the wall portion adapted to receive a portable cooling device may for example comprise a groove extending from an edge of the wall into the wall.
  • the groove is adapted to receive the connection such that the chamber is located inside the cooling box and the reactor is located outside the cooling box in the closed configuration.
  • the groove may be provided in the top wall (e.g. the lid).
  • the groove may be provided in a side wall. If the groove is provided in the side wall, it is preferably extending downwardly from the upper edge of the side wall, such that the cooling device hangs in the groove.
  • a benefit of providing the groove in the top wall/lid or at the upper edge of a side wall is that the chamber of the cooling box is positioned in the upper part of the interior of the cooling box during cooling, which facilitates efficient cooling and allows for efficient utilization of the interior space as the bottom of the cooling box interior is not occupied.
  • Providing the groove in the lid is particularly beneficial in this regard.
  • a sealing device may be arranged at the groove to prevent air leakages through the groove when it has received the connection.
  • the lid may be hinged or completely removable.
  • the distance between the chamber and the reactor of the cooling device is limited, for example by the space available between the hob of a stove and a cooking utensil placed on the stove above a burner.
  • a certain wall thickness may be required to provide sufficient insulation.
  • the wall portion adapted to receive the cooling device may therefore have a reduced thickness compared to the rest of the wall.
  • it may have a reduced thickness compared to an average thickness of the walls of the cooling box.
  • the reduced thickness may for example be a reduction of at least 4 mm, such as at least 8 mm, such as at least 12 mm.
  • the wall portion adapted to receive the cooling device may comprise an elevation extending from the plane of the wall, wherein a recess adapted to receive part of the reactor provided at the top of the elevation.
  • a recess adapted to receive part of the reactor provided at the top of the elevation.
  • Such an elevation may be provided on the inside or the outside of the wall. However, if it is provided on the inside, the recess is adapted to receive part of the chamber.
  • a part of the elevation between the recess and the edge from which the groove extends is tapering towards the edge from which the groove extends such that the height of the elevation is gradually increasing in a direction away from the edge in question.
  • Another benefit of the elevation is that the reactor (if the elevation is provided on the outside) or the chamber (if the elevation is provided on the inside) is lifted from the wall such that heat transfer between the reactor or chamber and the wall is reduced.
  • the wall may for example comprise polyurethane foam (PUR foam) or styrofoam® as insulating material.
  • PUR foam polyurethane foam
  • styrofoam® as insulating material.
  • the insulating material may be covered by sheets of plastic or metal. Examples of suitable inner volumes of the cooling box are 20-100 liters, such as 20-60 liters, such as 20-40 liters.
  • a heat-exchanging plate composed of a heat-conducting material, such as a metal, may be arranged on the outside of the wall such that said heat-exchanging plate is in physical contact with the reactor when the cooling device is received by the cooling box.
  • a heat-exchanging plate increases the surface area employed for cooling the reactor and a more efficient cooling of the reactor drives the evaporation in the chamber and thus the cooling inside the box.
  • the same type of heat-exchanging plate may be provided on the inside of the wall to increase the area available for transfer of heat to the chamber inside the box.
  • the heat-exchanging plate may be distanced from the wall by spacers, which further increases the available surface area.
  • the distance between the heat-exchanging plate and the wall may for example be 2-10 mm, such as 2-6 mm.
  • the heat-exchanging plate may also be distanced from the inside of the wall to such a degree that a slot adapted to receive the chamber is formed between the wall and the plate.
  • the width of the slot may be approximately the same as the width of the chamber (the outer diameter of the chamber in case of a circular cross section).
  • the width of the slot may for example be 15-50 mm, such as 20-40 mm.
  • Such a slot may function as a locking mechanism.
  • the slot reserves a space for the cooling device even if the cooling box is filled with contents (e.g. produce) before the cooling device is put into place. Such a reserved space may be particularly beneficial if the cooling device is received by a side wall of the cooling box.
  • the heat-exchanging plate may be distanced from the outside of the wall to such a degree that a slot adapted to receive the chamber is formed between the wall and the plate.
  • the width of the slot may be approximately the same as the width of the reactor (the outer diameter of the reactor in case of a circular cross section).
  • the width of the slot may for example be 15-50 mm, such as 20-40 mm.
  • Such an outside slot may also function as a locking mechanism.
  • the width of the groove is preferably adapted to size of the connection. For example, it may approximately correspond to the outer diameter of the connection in case the connection has a circular cross section. Thus, the width of the groove may for example be 15-50 mm, such as 20-40 mm.
  • the depth of the groove may be adapted to the size of the connection and optionally the thickness of the wall that meets the groove.
  • the depth of the groove may for example be 15-80 mm, such as 15-70 mm, such as 25-70 mm.
  • the depth of the groove may be reduced if the wall that meets the groove comprises a second groove such that a common space for receiving the cooling device is formed in the closed configuration of the cooling box.
  • a cooker adapted to receive a portable cooling device comprising a reactor extending in a first plane, an evaporation and condensation chamber extending in a second plane, which is approximately parallel to the first plane and a connection between the reactor and the chamber, said cooker comprising a metal frame having mainly vertical walls continuing into a mainly horizontal hob, the frame enclosing a burner and being adapted to enclose a fuel canister/container, wherein the frame is a bottomless frame formed of one piece so as to allow replacing of the fuel canister/container from the bottom side of the frame, said cooker further comprising one or several cooking utensil supports having an upper edge for supporting a cooking utensil in a position above the burner, the upper edge being provided with at least one recess for receiving the reactor of the cooling device.
  • the cooker of the third aspect may for example be a cooker according to WO 02/084175 , provided that the cooking utensil supports (denoted 47 in WO 02/084175 ) are provided with at least one recess for receiving the reactor. Further, the cooker of WO 02/084175 may be provided with a recess in the wind protecting part (denoted 49 in WO 02/084175 ) for receiving the connection when used according to the third aspect.
  • the cooker of the third aspect may for example be a cooker according to WO 2008/058566 , provided that the cooking utensil supports (denoted 6 in WO 2008/058566 ) are provided with at least one recess for receiving the reactor. Further, the cooker of WO 2008/058566 may be provided with a recess in the wind protector (denoted 7 in WO 2008/058566 ) for receiving the connection when used according to the third aspect.
  • the depth of the at least one recess in the cooking utensil supports may be such that the reactor is not in contact with the cooking utensil when the reactor is received by the recess(es) and the cooking utensil is supported by the upper edge of the cooking utensil supports in the position above the burner.
  • the depth of the recess(es) may for example be 15-50 mm, such as 20-40 mm.
  • the cooker of the third aspect may for example comprise at least one hob recess provided in the hob to receive the chamber.
  • the cooling device may be stabilized in the received position.
  • heat may be transferred from the chamber to the metal frame of the cooker.
  • the metal frame may contribute to the cooling of the chamber (in which the fluid condenses), which facilitates an efficient regeneration process.
  • a cooling system comprising:
  • the chamber is preferably located inside the cooling box and the reactor is located outside the cooling box when the cooling box in a closed configuration has received the cooling device.
  • the reactor of the cooling device may extend in a first plane and the chamber of the cooling device may extend in a second plane, which is approximately parallel to the first plane.
  • the distance between the reactor and the chamber in the direction perpendicular to the planes may be approximately the same as the thickness of a wall portion of the cooling box adapted to receive the cooling device. If the wall portion includes one or two heat-exchanging plates (see below), the relevant thickness is that including the heat-exchanging plate(s) and the spacers, if any, provided that the heat-exchanging plate(s) is not forming (a) slot(s) for receiving the cooling device.
  • the average thickness of the walls of the cooling box of the fourth aspect may be 2-7 cm, such as 3-6 cm and the inner volume of the cooling box of the fourth aspect may be 20-100 liters, such as 20-60 liters, such as 20-40 liters.
  • a heat-exchanging plate composed of a heat-conducting material, such as a metal may be arranged on an outer wall of the cooling box of the fourth aspect. The outer heat-exchanging plate is in physical contact with the reactor when the cooling device is received by the cooling box.
  • a heat-exchanging plate composed of a heat-conducting material, such as a metal may be arranged on an inner wall of the cooling box.
  • Such an inner heat-exchanging plate is in physical contact with the chamber when the cooling device is received by the cooling box.
  • the outer or inner heat-exchanging plate may be distanced from the wall by spacers.
  • the distance between the heat-exchanging plate and the wall may be 2-10 mm, such as 2-6 mm.
  • the heat-exchanging plate may alternatively be distanced from the inside of the wall to such a degree that a slot adapted to receive the chamber is formed between the wall and the plate.
  • the width of the slot may be approximately the same as the width/thickness of the chamber (the outer diameter of the chamber in case of a circular cross section).
  • the width of the slot may for example be 15-50 mm, such as 20-40 mm.
  • the heat-exchanging plate may be distanced from the outside of the wall to such a degree that a slot adapted to receive the chamber is formed between the wall and the plate.
  • the width of the slot may be approximately the same as the width/thickness of the reactor (the outer diameter of the reactor in case of a circular cross section).
  • the width of the slot may for example be 15-50 mm, such as 20-40 mm.
  • the top wall of the cooling box of the fourth aspect may be a lid allowing the cooling box to be opened.
  • the cooling device of the cooling system of the fourth aspect may for example be the cooling device of the first aspect (see above).
  • the cooling box of the cooling system of the fourth aspect may for example be the cooling box according to the second aspect (see above).
  • the cooling system further comprises a separate heating device adapted to receive the cooling device and heat the reactor while the chamber is in contact with a cooling source, such as ambient air.
  • a heating device may comprise recesses adapted to receive the cooling device.
  • the heating device of the fourth aspect may for example be a cooker adapted to simultaneously heat a cooking utensil and the reactor of the cooling device. Thus, waste heat from the cooking may be recovered.
  • the heating device is an arrangement adapted to exclusively regenerate one or more cooling devices.
  • Such an arrangement may for example be a central unit adapted to regenerate cooling devices from several users/families.
  • the central unit may use locally available fuel, such as biomass (e.g. wood) or locally produced biogas.
  • the reactor of the cooling device of the fourth aspect extends in a first plane and the chamber of the cooling device of the fourth aspect extends in a second plane, which is approximately parallel to the first plane and the cooling device is received by the burner, the planes are preferably approximately horizontal and/or the first plane is preferably located above the second plane.
  • the reactor in the first plane may be placed closer to the heat source than the chamber in the second plane, which ends up in a position below the heat source.
  • the heating device of the fourth aspect may comprise a burner.
  • the burner may be a liquid fuel burner.
  • the liquid fuel may be methanol or ethanol, which may be obtained from renewable resources. Further, methanol may be produced from waste streams in the oil industry.
  • the heating device may for example comprise a detachable and replaceable fuel canister.
  • the heating device of the cooling system of the fourth aspect may for example be the cooker according to the third aspect.
  • the cooker comprises a bottomless frame 10.
  • This frame may be manufactured in one piece, preferably by deep drawing, and consists of for instance stainless steel in order to withstand corrosion as far as possible.
  • the frame may also consist of aluminum.
  • the frame may at its lower part rest on an outwardly flanged foot portion 11 and has a surrounding mainly vertical wall 12 continuing into a horizontal hob 13.
  • the hob 13 may comprise a recess 14 adapted to receive the chamber of a cooling device of the present disclosure.
  • the recess is preferably circular. When chamber is received by the recess, the frame may function as a cooling element for the chamber.
  • the side portions of the vertical wall 12 may have several small openings 12a through which combustion air may flow into the frame.
  • Cooking utensil supports 15 are arranged on the upper side of the hob 13.
  • the cooking utensil supports in Fig. 1 comprise three radially (with respect to the burner) directed plates. However, it may instead comprise four, five or six radially directed plates.
  • the upper edge of each plate comprises a recess 16 adapted to receive the reactor of a cooling device of the present disclosure.
  • a burner tube 17 is arranged centrally in the frame. Above the burner tube 17, a flame spreader 18 is arranged.
  • the flame spreader 18 comprises a U- or ⁇ -shaped strip for securing to the hob 13 of the frame 10.
  • a wind protector 19 is arranged around the burner tube 17, preferably outside the cooking utensil supports 15.
  • the wind protector may be a circular plate, which may be perforated.
  • the upper edge of the wind protector may comprise a recess 19a adapted to receive the connection of a cooling device of the present disclosure.
  • FIG. 2a-2c shows various embodiments of a cooling device according to the present disclosure.
  • a reactor 21 comprising a sorbent extends in a first plane and the chamber 22 for condensation and evaporation of a fluid extends in a second plane, which is approximately parallel to and below the first plane.
  • the reactor defines a first area A1, which is smaller than a second area A2 defined by the chamber in the second plane (see e.g. 2a: vi and 2c: v).
  • the reactor 21 and the chamber 22 is connected by a connection 23, in which a valve 24 may be arranged (see 2a: i, ii and iii; 2b: i and ii; and 2c: i, ii and iv).
  • the valve 24 may be opened and closed by hand.
  • the cross section of the reactor 21 and/or the chamber 22 may for example be circular 25 or oval 26.
  • the cooling device may comprise one or more handles 27, which may be provided on the chamber 22 such that the cooling device may be conveniently put in place and removed (e.g. from the cooker) using two hands.
  • the handles 27 may radially extend from the chamber.
  • the reactor 21 may form a full ring (see 2a: i, ii, iv and v; and 2c: i, ii and iii).
  • the ring-shaped reactor may be circular (see 2a: i, ii, iv and v) or oval (see 2c: i, ii and iii).
  • the reactor 21 may form an interrupted ring/claw (see 2a: iii, vi and vii; and 2c: iv and v).
  • the ring-shaped reactor may be circular (see 2a: iii, vi and vii) or oval (see 2c: iv and v).
  • the chamber 22 is preferably circular.
  • the circular chamber may form a full ring (see 2a: i, ii, iv and v; and 2c: i, ii, and iii).
  • the circular chamber forms an interrupted ring/claw (see 2a: iii, vi and vii; and 2c: iv and v).
  • the rings of the reactor and the chamber are preferably concentric such that they have a common central point.
  • the connection 23 may be designed to connect the shortest distance between the reactor 21 and the chamber 22 (see 2a: i, ii, iii, iv and vi; 2b and 2c). In such case, the connection may be a straight tube. However, to reduce the necessary depth of the groove in the cooling box that receives the cooling device, the connection may have an alternative shape, such as an L-shape (e.g. one right angle, see 2a: v) or an U-shape (e.g. two right angles, see 2a: vii). The connection may also be curved (not shown).
  • the cooling device may also consist of a single tube bent and curved to form the circular reactor in the first plane and the circular chamber in the second plane (see 2b).
  • Fig. 3a shows a cooling box 30 according to the present disclosure comprising four side walls 31 and a lid 32.
  • a groove 33 is provided in the upper edge of one of the side walls 31.
  • the groove 33 is adapted to receive the connection 23 of the cooling device 20.
  • the width (w) of the wall at the groove is approximately the same as the distance (d) between the reactor 21 and the chamber 22 in the cooling device 20.
  • Fig. 3b shows another cooling box 34 according to the present disclosure comprising four side walls 35 and a lid 36.
  • a groove 37 is provided in an edge of the lid 36.
  • the groove 37 is adapted to receive the connection 23 of the cooling device.
  • an elevation 38 is provided at the top of the lid 36.
  • the elevation 38 is tapering towards the groove 37.
  • a recess 39 is provided such that the cooling device 20 may be locked in a received position.
  • the thickness/width (w) of the lid at the groove 37 is approximately the same as the distance (d) between the reactor 21 and the chamber 22 in the cooling device 20. However, the thickness/width (w') of the lid 36 at the top of the elevation 38 is greater than the distance (d) between the reactor 21 and the chamber 22 in the cooling device 20.
  • Fig 4 shows a cooking utensil/pot 41 placed on the cooker, such that the pot 41 may be heated by a flame 40 of the cooker.
  • the cooling device 20 is simultaneously regenerated by the cooker. Heat from the flame 40 is transferred to the cooling device's reactor 21, which is received by the recesses 16 in the cooking utensil supports 15. The depth of the recesses 16 is such that a small space is left between the bottom of the pot 41 and the top of the reactor 21. Flue gases may thus flow between the bottom of the pot 41 and the top of the reactor 21 when the flame 40 is burning.
  • the connection 23 of the cooling device is received by the recess 19a in the wind protector 19. Also, the chamber 22 of the cooling device is received by the recess 14 in the hob 13.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Cookers (AREA)
EP13157108.5A 2013-02-28 2013-02-28 Kühlsystem Withdrawn EP2772704A1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP13157108.5A EP2772704A1 (de) 2013-02-28 2013-02-28 Kühlsystem
PCT/EP2014/053280 WO2014131679A1 (en) 2013-02-28 2014-02-20 Cooling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13157108.5A EP2772704A1 (de) 2013-02-28 2013-02-28 Kühlsystem

Publications (1)

Publication Number Publication Date
EP2772704A1 true EP2772704A1 (de) 2014-09-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP13157108.5A Withdrawn EP2772704A1 (de) 2013-02-28 2013-02-28 Kühlsystem

Country Status (2)

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EP (1) EP2772704A1 (de)
WO (1) WO2014131679A1 (de)

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USD953814S1 (en) 2019-11-04 2022-06-07 Dometic Sweden Ab Cover for a cooler
US11359848B2 (en) 2019-01-04 2022-06-14 Dometic Sweden Ab Mobile cooling box with ice maker
US11396406B2 (en) 2019-01-04 2022-07-26 Dometic Sweden Ab Mobile cooling box with hinge module
US11415355B2 (en) 2019-01-04 2022-08-16 Dometic Sweden Ab Mobile cooling box with handle module
USD1002676S1 (en) 2019-08-30 2023-10-24 Dometic Sweden Ab Appliance
US11821672B2 (en) 2019-01-04 2023-11-21 Dometic Sweden Ab Mobile cooling box with air vents
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USD1026969S1 (en) 2020-08-31 2024-05-14 Dometic Sweden Ab Refrigerator
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US11827423B2 (en) 2019-01-04 2023-11-28 Dometic Sweden Ab Mobile cooling box with hinge module
US11913713B2 (en) 2019-01-04 2024-02-27 Dometic Sweden Ab Mobile cooling box with latch handle opening
US11415355B2 (en) 2019-01-04 2022-08-16 Dometic Sweden Ab Mobile cooling box with handle module
USD1033490S1 (en) 2019-01-04 2024-07-02 Dometic Sweden Ab Cooler fender frame
US11754332B2 (en) 2019-01-04 2023-09-12 Dometic Sweden Ab Mobile cooling box with ice maker
USD954764S1 (en) 2019-01-04 2022-06-14 Dometic Sweden A.B Cooler fender frame
US11359848B2 (en) 2019-01-04 2022-06-14 Dometic Sweden Ab Mobile cooling box with ice maker
USD1023684S1 (en) 2019-01-04 2024-04-23 Dometic Sweden Ab Fender frame of a cooler
USD929471S1 (en) 2019-01-04 2021-08-31 Dometic Sweden Ab Cooler
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US11396406B2 (en) 2019-01-04 2022-07-26 Dometic Sweden Ab Mobile cooling box with hinge module
US11821672B2 (en) 2019-01-04 2023-11-21 Dometic Sweden Ab Mobile cooling box with air vents
USD920743S1 (en) 2019-01-04 2021-06-01 Dometic Sweden Ab Cooler
USD1002676S1 (en) 2019-08-30 2023-10-24 Dometic Sweden Ab Appliance
USD953814S1 (en) 2019-11-04 2022-06-07 Dometic Sweden Ab Cover for a cooler
USD935280S1 (en) 2019-11-04 2021-11-09 Dometic Sweden Ab Cover for a cooler
USD1026969S1 (en) 2020-08-31 2024-05-14 Dometic Sweden Ab Refrigerator

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