US20040177636A1 - Air-conditioning system for rooms - Google Patents
Air-conditioning system for rooms Download PDFInfo
- Publication number
- US20040177636A1 US20040177636A1 US10/798,005 US79800504A US2004177636A1 US 20040177636 A1 US20040177636 A1 US 20040177636A1 US 79800504 A US79800504 A US 79800504A US 2004177636 A1 US2004177636 A1 US 2004177636A1
- Authority
- US
- United States
- Prior art keywords
- air
- conditioning system
- cooling
- cooling element
- room
- 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.)
- Abandoned
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0089—Systems using radiation from walls or panels
- F24F5/0092—Systems using radiation from walls or panels ceilings, e.g. cool ceilings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/12—Tube and panel arrangements for ceiling, wall, or underfloor heating
- F24D3/14—Tube and panel arrangements for ceiling, wall, or underfloor heating incorporated in a ceiling, wall or floor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0089—Systems using radiation from walls or panels
-
- 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
- F25D23/00—General constructional features
- F25D23/06—Walls
- F25D23/061—Walls with conduit means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/14—Details or features not otherwise provided for mounted on the ceiling
-
- 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
- F25B2339/00—Details of evaporators; Details of condensers
- F25B2339/02—Details of evaporators
- F25B2339/023—Evaporators consisting of one or several sheets on one face of which is fixed a refrigerant carrying coil
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2210/00—Heat exchange conduits
- F28F2210/10—Particular layout, e.g. for uniform temperature distribution
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
Definitions
- the invention relates to and air-conditioning system for rooms.
- such a cooling element through which preferably a cooling medium flows, can be installed with relatively minimal additional expenditure in the walls of the room, for example, during construction of the building. Without taking up any of the useable space of the room, it is possible in this way to provide large cooling-effective surfaces in rooms.
- the ceiling is particularly suitable.
- the rising hot air and the cold air dropping from the cool ceiling cause advantageously an intensive air circulation that is beneficial for air conditioning the room.
- the cooling element is embedded in the wall material near the surface of the wall.
- the cooling element is embedded in the plaster layer of the wall.
- a cooling element is particularly beneficial that is comprised of at least one pre-manufactured web of a flexible carrier mat and at least one flexible cooling pipe fastened on the carrier mat.
- a pipe diameter of less than 6 mm and a mat thickness of less than 1 mm such a cooling system can be positioned without problems within the plaster layer whose thickness is within the normal or conventional range of such layers.
- the carrier mat has penetrations like a screen and has in particular a net structure.
- a mat that is formed by a fabric or woven material or mesh is penetrated by the plaster material, and, in this way, a fixed connection can be realized between the plaster material and the base onto which the plaster is applied.
- the mat enhances, on the one hand, the attachment of the plaster on the base surface to which the plaster is applied while forming, on the other hand, a reinforcement that strengthens the plaster layer.
- the mat On the side that is facing away from the base to which the plaster is applied, the mat can be provided with projecting pin-shaped connecting elements that are preferably undercut and therefore can get hooked within the plaster.
- the cooling element is designed to be adhesively connected to or/and attached (tacked) to the base to which the plaster is applied or/and a precoat of plaster.
- the cooling element in particular, the carrier mat, can be pre-manufactured to be self-adhesive in that it is provided with an adhesive layer that is preferably covered by a protective film that can be removed on site.
- self-adhesive webs can be manufactured that are preferably wound to a roll and are removed or unwound from the roll for adhesively connecting them to the base to which the plaster is to be applied.
- the carrier mat is simply cut and, optionally, a further web section is rolled out in the opposite direction wherein the flexible cooling pipe can be continued from web section to web section.
- the attachment that is provided in addition to or as an alternative to the adhesive connection can be realized by nailing, wherein, for example, staple-shaped or bracket-shaped nail elements are shot by means of a staple gun or the like through the carrier mat into the base onto which the plaster is to be applied or into the precoat of plaster.
- two cooling pipes for example, can be arranged parallel to one another wherein the cooling medium flows through the cooling pipes in opposite directions and wherein each cooling pipe is connected to a cooling medium supply and a cooling medium return. Because of the opposite flow of the cooling medium, a uniform heat removal is realized across the surface area of the cooling element.
- Cooling elements of several rooms can be connected by means of supply and return pipes installed within the building walls to a central cooling aggregate.
- the new cooling system according to the invention that enables the formation of large cooling surfaces also enables however the use of cooling energy reservoirs whose temperatures are only slightly below the desired target temperature of the room.
- the cooling energy reservoir can be, for example, a well or a flowing stream having a temperature of 20°. Also, the connection of the cooling element with a heat exchanger that is arranged in the ground is possible.
- FIG. 1 shows a cooling element for use in an air-conditioning system according to the invention
- FIG. 2 shows detail A of the cooling element of FIG. 1;
- FIG. 3 is an illustration for explaining the installation a cooling element according to FIGS. 1 and 2;
- FIG. 4 shows a partial view of the cooling element of FIG. embedded in a plaster layer of a ceiling of a room
- FIG. 5 is a schematic overall view of an air-conditioning stem of a room according to the invention with cooling elements according to FIGS. 1 through 4.
- the cooling element 1 illustrated in FIG. 1 has two pre-manufactured webs 2 , 3 that adjoin one another in the longitudinal direction.
- PVC polyvinyl chloride
- two cooling pipes 5 , 6 made of polyethylene are fastened by means of loops 7 ; they extend continuously across both carrier webs parallel to one another. They rest against one another along a surface line.
- the outer diameter of the pipe is 6 mm while the inner diameter is 4 mm.
- the cooling medium element 1 has two cooling circuits formed by the pipes 5 and 6 through which the cooling medium flows in opposite directions.
- the carrier webs 2 , 3 of FIG. 3 are rolled or unwound from a pre-manufactured roll 8 and are glued by an adhesive layer (not illustrated) that is produced during manufacturing on the carrier web 4 of fabric to the not yet plastered surface of a ceiling 9 that is formed, for example, by a structural concrete member.
- the adhesive connection is realized by applying pressure forces in accordance with the arrows 10 in a way similar to applying wallpaper.
- another worker can roll the roll 8 across the ceiling 9 for removing the web 2 , 3 while removing at the same time a protective layer 11 covering the aforementioned adhesive layer.
- a carrier mat of fabric could be coated with an adhesive or glue on site like a web of wallpaper.
- an adhesive material could also be applied to the not yet plastered ceiling as indicated by the arrows 19 .
- the carrier mat 4 is cut, but the pipes 5 , 6 are guided without being cut or separated to the next web section.
- the webs 2 and 3 before being adhesively connected to the ceiling 9 , could be rolled out until they have the required length.
- the pipes 5 , 6 would have to be connected by means of connecting members to one another at the separating locations between the webs.
- the cooling element 1 that is adhesively connected to the ceiling 9 and is comprised of two webs 2 , 3 is embedded according to FIG. 4 in a plaster layer 12 .
- the plaster layer 12 passes at an upper room corner 13 into the plaster layer 21 of a wall 14 of the room.
- cooling elements 1 ′, 1 ′′ etc. can be connected to a cooling medium supply 15 and a cooling medium return 16 , wherein the supply is connected to a cooling. energy reservoir 18 by a pump 17 that circulates the cooling medium.
Abstract
An air-conditioning system for a room has a flat cooling element arranged in a wall of the room, preferably the ceiling of the room. The cooling element is embedded in a plaster layer of the ceiling. The cooling element has at least one pre-manufactured web that is made of a carrier mat and at least one cooling pipe that is fastened to the carrier mat. A cooling medium is pumped through the cooling pipe.
Description
- The invention relates to and air-conditioning system for rooms.
- It is an object of the present invention to provide an air-conditioning system for rooms, in particular, for living spaces, that operates effectively and can be installed cost-efficiently.
- In accordance with the present invention, this is achieved in that a flat cooling element is arranged within a wall of the room.
- Advantageously, such a cooling element, through which preferably a cooling medium flows, can be installed with relatively minimal additional expenditure in the walls of the room, for example, during construction of the building. Without taking up any of the useable space of the room, it is possible in this way to provide large cooling-effective surfaces in rooms.
- For installing the cooling elements, the ceiling is particularly suitable. In this case, the rising hot air and the cold air dropping from the cool ceiling cause advantageously an intensive air circulation that is beneficial for air conditioning the room.
- Expediently, the cooling element is embedded in the wall material near the surface of the wall. In a preferred embodiment of the invention, the cooling element is embedded in the plaster layer of the wall. For this purpose, a cooling element is particularly beneficial that is comprised of at least one pre-manufactured web of a flexible carrier mat and at least one flexible cooling pipe fastened on the carrier mat. For a pipe diameter of less than 6 mm and a mat thickness of less than 1 mm, such a cooling system can be positioned without problems within the plaster layer whose thickness is within the normal or conventional range of such layers.
- Preferably, the carrier mat has penetrations like a screen and has in particular a net structure. Such a mat that is formed by a fabric or woven material or mesh is penetrated by the plaster material, and, in this way, a fixed connection can be realized between the plaster material and the base onto which the plaster is applied. Advantageously, the mat enhances, on the one hand, the attachment of the plaster on the base surface to which the plaster is applied while forming, on the other hand, a reinforcement that strengthens the plaster layer.
- On the side that is facing away from the base to which the plaster is applied, the mat can be provided with projecting pin-shaped connecting elements that are preferably undercut and therefore can get hooked within the plaster.
- In another embodiment of the invention, the cooling element is designed to be adhesively connected to or/and attached (tacked) to the base to which the plaster is applied or/and a precoat of plaster.
- The cooling element, in particular, the carrier mat, can be pre-manufactured to be self-adhesive in that it is provided with an adhesive layer that is preferably covered by a protective film that can be removed on site. In this way, self-adhesive webs can be manufactured that are preferably wound to a roll and are removed or unwound from the roll for adhesively connecting them to the base to which the plaster is to be applied. At the ends of the ceiling, the carrier mat is simply cut and, optionally, a further web section is rolled out in the opposite direction wherein the flexible cooling pipe can be continued from web section to web section.
- The attachment that is provided in addition to or as an alternative to the adhesive connection can be realized by nailing, wherein, for example, staple-shaped or bracket-shaped nail elements are shot by means of a staple gun or the like through the carrier mat into the base onto which the plaster is to be applied or into the precoat of plaster.
- On the aforementioned web or carrier mat, two cooling pipes, for example, can be arranged parallel to one another wherein the cooling medium flows through the cooling pipes in opposite directions and wherein each cooling pipe is connected to a cooling medium supply and a cooling medium return. Because of the opposite flow of the cooling medium, a uniform heat removal is realized across the surface area of the cooling element.
- The installation of further cooling pipes is possible. In particular in this case, it appears to be expedient to arrange the cooling pipes parallel and at a spacing to one another in order to enable at locations between the pipes a bonding of the plaster to the base to which it is to be applied and to provide in this way a stable plaster layer.
- Cooling elements of several rooms can be connected by means of supply and return pipes installed within the building walls to a central cooling aggregate. The new cooling system according to the invention that enables the formation of large cooling surfaces also enables however the use of cooling energy reservoirs whose temperatures are only slightly below the desired target temperature of the room. The cooling energy reservoir can be, for example, a well or a flowing stream having a temperature of 20°. Also, the connection of the cooling element with a heat exchanger that is arranged in the ground is possible.
- FIG. 1 shows a cooling element for use in an air-conditioning system according to the invention;
- FIG. 2 shows detail A of the cooling element of FIG. 1;
- FIG. 3 is an illustration for explaining the installation a cooling element according to FIGS. 1 and 2;
- FIG. 4 shows a partial view of the cooling element of FIG. embedded in a plaster layer of a ceiling of a room; and
- FIG. 5 is a schematic overall view of an air-conditioning stem of a room according to the invention with cooling elements according to FIGS. 1 through 4.
- The
cooling element 1 illustrated in FIG. 1 has two pre-manufactured webs 2, 3 that adjoin one another in the longitudinal direction. As shown in the detailed view of FIG. 2, the webs 2 and 3 are comprised of acarrier mat 4 of fabric or woven material having crossing threads or strands of plastic material; in the illustrated embodiment, a PVC-coated (PVC=polyvinyl chloride) glass mesh or fabric is used. For a mesh width of approximately 5 mm, the total thickness of the mat is approximately 1 mm. - On the flexible
fabric carrier mat 4, twocooling pipes loops 7; they extend continuously across both carrier webs parallel to one another. They rest against one another along a surface line. In the illustrated embodiment, the outer diameter of the pipe is 6 mm while the inner diameter is 4 mm. - As indicated in FIG. 1 by arrows and-illustrated in FIG. 5, one end of the
pipe 5 is connected to thecooling medium supply 15 and a neighboring end of thecooling pipe 6 is connected to thecooling medium return 16. To the cooling medium return 16 the other end of thecooling pipe 5 that neighbors the end of thecooling pipe 6 in communication with thecooling medium supply 15 is connected also. Accordingly, thecooling medium element 1 has two cooling circuits formed by thepipes - The carrier webs2, 3 of FIG. 3 are rolled or unwound from a pre-manufactured roll 8 and are glued by an adhesive layer (not illustrated) that is produced during manufacturing on the
carrier web 4 of fabric to the not yet plastered surface of aceiling 9 that is formed, for example, by a structural concrete member. The adhesive connection is realized by applying pressure forces in accordance with thearrows 10 in a way similar to applying wallpaper. During the process of producing the adhesive connection, another worker can roll the roll 8 across theceiling 9 for removing the web 2, 3 while removing at the same time aprotective layer 11 covering the aforementioned adhesive layer. - In deviation from the illustrated embodiment, instead of pre-manufacturing a self-adhesive web, a carrier mat of fabric could be coated with an adhesive or glue on site like a web of wallpaper. As an alternative or in addition thereto, an adhesive material could also be applied to the not yet plastered ceiling as indicated by the
arrows 19. - In the illustrated embodiment according to FIG. 1, for forming the webs or web sections2 and 3, the
carrier mat 4 is cut, but thepipes - In deviation from the afore described method, the webs2 and 3, before being adhesively connected to the
ceiling 9, could be rolled out until they have the required length. In this case, thepipes - The
cooling element 1 that is adhesively connected to theceiling 9 and is comprised of two webs 2, 3 is embedded according to FIG. 4 in aplaster layer 12. Theplaster layer 12 passes at anupper room corner 13 into theplaster layer 21 of awall 14 of the room. - According to FIG. 5,
several cooling elements 1′, 1″ etc. can be connected to acooling medium supply 15 and acooling medium return 16, wherein the supply is connected to a cooling.energy reservoir 18 by a pump 17 that circulates the cooling medium. - While specific embodiments of the invention have been shown and described in detail to illustrate the inventive principles, it will be understood that the invention may be embodied otherwise without departing from such principles.
Claims (12)
1. An air-conditioning system for a room, the air-conditioning system comprising a flat cooling element arranged within a wall of the room.
2. The air-conditioning system according to claim 1 , wherein the wall of the room is a ceiling of the room.
3. The air-conditioning system according to claim 1 , wherein the cooling element is embedded in the wall of the room.
4. The air-conditioning system according to claim 3 , wherein the cooling element is embedded in a plaster layer of the wall of the room.
5. The air-conditioning system according to claim 1 , wherein the cooling element is comprised of at least one pre-manufactured web comprised of a carrier mat and at least one cooling pipe fastened to the carrier mat.
6. The air-conditioning system according to claim 5 , wherein the carrier mat is a screen material having penetrations.
7. The air-conditioning system according to claim 6 , wherein the carrier mat has a net structure.
8. The air-conditioning system according to claim 5 , wherein the carrier mat has connecting elements for connecting the plaster layer to the carrier mat.
9. The air-conditioning system according to claim 8 , wherein the connecting elements have undercuts.
10. The air-conditioning system according to claim 1 , wherein the cooling element is configured to be adhesively connected to or tacked to at least one of the base to which the plaster is to be applied and a precoat of the plaster.
11. The air-conditioning system according to claim 10 , wherein the cooling element is pre-manufactured as a self-adhesive element comprising an adhesive layer.
12. The air-conditioning system according to claim 11 , wherein the cooling element further comprises a removable protective film, wherein the adhesive layer is covered with the removable protective film, wherein the protective film is removed before applying the cooling element to the wall.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10311214A DE10311214A1 (en) | 2003-03-14 | 2003-03-14 | Room cooling system |
DE10311214.6 | 2003-03-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20040177636A1 true US20040177636A1 (en) | 2004-09-16 |
Family
ID=32748249
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/798,005 Abandoned US20040177636A1 (en) | 2003-03-14 | 2004-03-11 | Air-conditioning system for rooms |
Country Status (3)
Country | Link |
---|---|
US (1) | US20040177636A1 (en) |
EP (1) | EP1457742A1 (en) |
DE (1) | DE10311214A1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090120119A1 (en) * | 2007-11-12 | 2009-05-14 | Evinoks Servis Ekipmanlari Sanayi Ve Ticaret Anonim Sirketi | Method of Using Glass for Surface Cooling Process and a Cooling Surface |
US20110073274A1 (en) * | 2009-09-30 | 2011-03-31 | Ics Group Inc. | Modular climate change tarp system |
WO2011103757A1 (en) * | 2010-02-23 | 2011-09-01 | Fu Liming | Heating and cooling system for solar house |
US20140182327A1 (en) * | 2008-09-10 | 2014-07-03 | Panasonic Healthcare Co., Ltd. | Refrigerating apparatus |
CN109269155A (en) * | 2018-11-06 | 2019-01-25 | 广西钦州市奇福保温冷冻设备有限公司 | Aluminum profile vaporation-type heat dissipation cold plate |
US20200149748A1 (en) * | 2018-11-14 | 2020-05-14 | Francesco Giovanni Longo | Building System |
US11698211B2 (en) * | 2011-11-04 | 2023-07-11 | Lg Electronics Inc. | Refrigerator with vacuum insulation housing a heat interchanger |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004050207A1 (en) * | 2004-10-15 | 2006-04-20 | Haase, Werner, Dipl.-Ing. | Internal wall fitting for insulating building walls comprises internal insulation adjoining inside of outside wall and adjoined by internal wall layer which contains several pipes for passing through heating or cooling medium |
AT14634U1 (en) * | 2015-02-09 | 2016-02-15 | Steinbacher Dämmstoff Ges M B H | composite mat |
NL2016247B1 (en) * | 2016-02-10 | 2017-08-15 | Vidalco Systems B V | Prefabricated floor part, system and method for floor heating and / or cooling, and machine for the production of the floor part. |
EP3205945B1 (en) * | 2016-02-10 | 2021-03-31 | Van Losser Investments B.V. | Prefabricated floor part, system, floor and method for floor heating and/or cooling, and machine for producing the floor part |
NL2019734B1 (en) * | 2017-08-08 | 2019-02-21 | Vidalco Systems B V | FLOOR HEATING MAT, FLOOR EQUIPPED, AND A DEVICE AND METHOD FOR MANUFACTURING |
WO2019031962A1 (en) * | 2017-08-08 | 2019-02-14 | Vidalco Systems B.V. | Floor heating mat, floor provided therewith, and device and method for manufacture |
EP4177527A1 (en) * | 2021-11-03 | 2023-05-10 | Vidar Last Holding BV | Heating or cooling element |
WO2023079023A1 (en) * | 2021-11-03 | 2023-05-11 | Vidar Last Holding Bv | Heating or cooling element |
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DE20105619U1 (en) * | 2001-03-29 | 2001-06-28 | Clina Heiz & Kuehlelemente | Capillary tube mat for heating and cooling ceilings, walls, floors, parts of buildings and the like. |
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2003
- 2003-03-14 DE DE10311214A patent/DE10311214A1/en not_active Withdrawn
-
2004
- 2004-02-13 EP EP04003216A patent/EP1457742A1/en not_active Withdrawn
- 2004-03-11 US US10/798,005 patent/US20040177636A1/en not_active Abandoned
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US5251461A (en) * | 1992-09-18 | 1993-10-12 | Carrier Corporation | Grille for packaged terminal air conditioner |
US5988264A (en) * | 1998-02-11 | 1999-11-23 | Goldsmith; Aaron | Dynamic insulation and air conditioning and radiant heating system |
US6701741B2 (en) * | 2001-04-06 | 2004-03-09 | O.Y.L. Research & Development Centre Sdn. Bhd. | Room air-conditioner |
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US11698211B2 (en) * | 2011-11-04 | 2023-07-11 | Lg Electronics Inc. | Refrigerator with vacuum insulation housing a heat interchanger |
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Also Published As
Publication number | Publication date |
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DE10311214A1 (en) | 2004-09-23 |
EP1457742A1 (en) | 2004-09-15 |
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