EP3036483A1 - Air conditioning arrangement for a space - Google Patents
Air conditioning arrangement for a spaceInfo
- Publication number
- EP3036483A1 EP3036483A1 EP14739795.4A EP14739795A EP3036483A1 EP 3036483 A1 EP3036483 A1 EP 3036483A1 EP 14739795 A EP14739795 A EP 14739795A EP 3036483 A1 EP3036483 A1 EP 3036483A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat exchanger
- space
- housing
- fan
- wall
- 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- Withdrawn
Links
- 238000004378 air conditioning Methods 0.000 title abstract description 7
- 230000003750 conditioning effect Effects 0.000 claims description 6
- 238000005192 partition Methods 0.000 claims description 6
- 239000012809 cooling fluid Substances 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 4
- 230000001737 promoting effect Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 239000002826 coolant Substances 0.000 claims 1
- 238000001816 cooling Methods 0.000 abstract description 37
- 238000010586 diagram Methods 0.000 description 10
- 230000006378 damage Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- JRBRVDCKNXZZGH-UHFFFAOYSA-N alumane;copper Chemical compound [AlH3].[Cu] JRBRVDCKNXZZGH-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20709—Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
- H05K7/20718—Forced ventilation of a gaseous coolant
- H05K7/20745—Forced ventilation of a gaseous coolant within rooms for removing heat from cabinets, e.g. by air conditioning device
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
- F24F1/0057—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in or on a wall
-
- 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
- F24F2221/40—HVAC with raised floors
Definitions
- the invention relates to an arrangement for conditioning a room comprising at least one heat exchanger surface having a heat exchanger, which limits the space as a first space or at least one arranged in the space device, and at least one air through the heat exchanger promoting fan device, wherein limiting the space at least one heat exchanger that separates the first space from a second space which is fluidly connected to a cavity connected to the first space, which preferably extends below the floor or in or above the ceiling area of the first space, and wherein at least one of the device delimiting the device Heat exchanger, the device is a placed in the room housing.
- EP 2 278 231 A2 discloses an arrangement for conditioning a room.
- a heat exchanger is designed as a room boundary or section of a room boundary. In this way, the room is energetically favorable to cool. At the same time, a trouble-free maintenance of the heat exchanger can take place, since this is bounded on one side by the heat-generating devices containing space and on space away side of a maintenance.
- DE 10 2009 030 214 A1 and DE 200 23 882 Ul disclose air-conditioning arrangements in which air flows through openings in a cavity floor into a space to be conditioned in order to cool existing heat-generating appliances in the room in pure recirculation mode.
- US Pat. No. 6,672,955 B1 discloses a computer center space in which electronic devices arranged in rows limit hot and cold aisles.
- the cold aisles are enclosed in order to supply cooled air via an intermediate floor.
- the air flowing through the electrical equipment is then sucked in the ceiling area, which then passes through a heat exchanger, which is flowed through by a cooling fluid.
- cooled air supplied to a heat-generating device arranged in a cabinet is supplied, which is sucked off via a fan arranged in an air conditioner.
- a heat exchanger is arranged in the air conditioner.
- DE 200 23 882 Ul provides a climate chamber arranged in the room and a fan arranged in a hollow floor space, via which the exhaust air is sucked through the climatic chamber and then the supply air via a floor opening to feed the room again.
- the subject of DE 10 2011 117 908 B4 is a cooling arrangement for cooling electronic devices arranged in a room in control cabinets.
- the cabinet In the space containing the devices there are two cuboid tower-like heat exchanger cabinets, which have at least two vertical side surfaces heat exchanger.
- the cabinet is arranged on a double bottom having openings, the cooled air exiting the heat exchanger cabinet is supplied to the room.
- a radial fan can be arranged to promote the cooled air. Alternatively, it is possible to arrange the radial fan above the cabinet or within this near the top.
- JP 2011-220 665 A discloses an air conditioning system.
- hot air is extracted via the ceiling area, which then passes through the heat exchanger, forming the sections of a boundary wall of the room.
- EP 2 568 793 A2 relates to a method and an arrangement for air conditioning a room.
- fans are arranged below hot air in a cavity, is sucked through the hot air, which is supplied either heat exchangers or discharged as exhaust air.
- a cooling arrangement for cooling a room is known in which heat exchangers are arranged between racks, in order to cool the resulting hot air.
- JP 2011-085267A also provides racks with heat exchangers between racks.
- a housing with cooling devices is provided above a warming corridor.
- the present invention is u. a. the object of developing an arrangement for conditioning a room of the type mentioned so that with structurally simple measures to the desired extent cooling is possible. According to another aspect, there should be the possibility of easily supplying desired areas of the room cooling air without special precautions must be made in the ground area. Furthermore, an individual adaptation to cooling tasks should be made possible with structurally simple measures.
- the invention provides that, in the space-limiting at least one heat exchanger, the at least one fan device is an axial fan which starts from a cover closing the heat exchanger surfaces of the heat exchanger, or at least one heat exchanger delimiting the device a wall of the housing is at least partially formed by the heat exchanger, that a heat exchanger surface of the heat exchanger is provided with a covering this cover, from which the at least one fan means emanates, or that in a bottom side and / or head side extending portion of the housing at least one fan device in Form of a centrifugal fan is arranged the suction side is aligned inside the housing, and wherein at least one boundary wall of the housing in the pressure-side region of the centrifugal fan has air outlet openings.
- the housing instead of the bottom side and / or head side extending in the housing fan, it is also possible to arrange the housing on a perforations having section of a double bottom, wherein the fan is not in the housing, but within the double bottom, that is arranged in a cavity, the extends below the first space bounding bottom and has openings to the first room to supply cold air to the room can. In this case, it should be at the arranged in the cavity fan to a centrifugal fan.
- the heat exchanger separates the space containing the heat-generating devices as a first space from a further space as a second space or that the heat exchanger is a section of a corresponding partition wall.
- the heat exchanger is a section of a corresponding partition wall.
- one or more axial fans are used, the cover or covers thereof covering a heat exchanger surface out. If air drawn in from the first space is to be supplied to the heat exchanger directly without flowing through the floor or intermediate floor or a cavity in the ceiling area of the first room, the cover runs along the area facing the second room.
- the area of the heat exchanger facing the first space is covered and has the axial fan (s).
- the axial fan With the related constructive measures there is a simple way to cool a room without a radial fan must be arranged in the cavity as intermediate floor, as provided by the prior art. Also radial fans in the second space are not necessary, so that this area may be made relatively small in area. The floor area is free. Thus, a problem-free maintenance of the or the outgoing from the cover of the heat exchanger axial fans can be done.
- the number of axial fans depends on the cooling surface and the required cooling capacity, so that the invention is not limited to a certain number of axial fans, so even a single axial fan can be provided, even if below is spoken of axial fans.
- the invention according to the second alternative is provided in an embodiment to be emphasized in that the heat exchanger is a wall or section of a wall of a housing which can be set up in the space to be cooled.
- the housing may have a bottom portion, is discharged via the cold air directly to the room, without the need for a hollow floor.
- a centrifugal fan is used as fan device.
- a corresponding fan such as radial fan, through which the air passing through the heat exchanger sucked and supplied to the room.
- the fan sucking in the air and promoting the heat exchanger fan is not arranged in the housing, but below this in an intermediate floor, which is connected via openings such as slots with the space and the housing.
- the interior of the housing with the first space exclusively via the fan and a single wall or a portion of a wall of the housing forming heat exchanger surface is fluidly connected.
- the free heat exchanger surface should be covered with a filter without this being absolutely necessary.
- a development of the invention provides that the heat exchanger surfaces are covered by a contact protection grid in order to prevent damage to the fins of the heat exchanger and to preclude a risk of injury.
- the heat exchangers themselves are in particular copper-aluminum heat exchangers, d. that is, copper tubes through which a cooling fluid flows are connected to lamellae made of aluminum.
- a cooling fluid in particular cold water with a flow temperature between 5 ° C to 30 ° C in question.
- a refrigerant which vaporizes in the copper pipes may be used as the cooling fluid.
- a compressor-condenser unit is arranged, which is connected to the copper pipes.
- the fan means emanates from an intermediate wall of the housing, which divides the interior of the housing, wherein the intermediate wall for each fan means has an opening which is connected to the suction side of the fan.
- the heat exchanger surface facing the first space is provided with the cover, from which at least one axial fan, preferably at least two axial fans, originate, which are connected on the suction side to the first space.
- the invention provides that the heat exchanger is at least one wall or a portion of a wall of the housing, preferably two opposite walls or sections of these are designed as heat exchangers, wherein the inner heat exchanger surface or surfaces is provided with a cover or, of each of which at least one fan device in the form of an axial or radial compressor emanates.
- the outer heat exchanger surface or outer heat exchanger surfaces are each provided with a cover, from which extends at least one fan device in the form of an axial compressor whose suction side extends on the heat exchanger side.
- the heat exchanger which forms a wall or at least a portion of a wall of the housing, is formed without housing, wherein in the interior of the housing along the heat exchanger surface and spaced therefrom runs a partition, from which in particular at least one radial compressor runs out ,
- the partition may define a gap, wherein the partition has at least one connected to the suction side of a centrifugal compressor opening. Further, there is the possibility that the space floor and / or head side is connected to the space and / or extending below the space cavity, the in turn fluidly connected to the space for cooling the arranged therein heat generating devices.
- FIG. 1 is a schematic diagram of a first embodiment of an arrangement for cooling a room
- FIG. 2 is a schematic diagram of a second embodiment of an arrangement for cooling a room
- FIG. 3 is a schematic diagram of a third embodiment of an arrangement for cooling a room
- FIG. 4 is a schematic diagram of a fourth embodiment of an arrangement for cooling a room
- FIG. 5 is a schematic diagram of a fifth embodiment of an arrangement for cooling a room
- Fig. 6 is a schematic diagram of a sixth embodiment of a
- FIG. 7 is a schematic diagram of a seventh embodiment of an arrangement for cooling a room
- 8 is a schematic diagram of an eighth embodiment of an arrangement for cooling a room
- FIG. 9 is a schematic diagram of a ninth embodiment of an arrangement for cooling a room
- Fig. 10 is a schematic diagram of a tenth embodiment of an arrangement for cooling a room
- FIG. 11 shows a variant of the embodiments of FIGS. 6 and 7.
- FIGS. 1 and 2 represent developments of an arrangement according to z.
- a first space 10 is shown, in which the heat-generating devices mentioned above are preferably arranged in rows that separate cold and hot aisles.
- the space 10 is separated from a second space 12 via a heat exchanger 14, passed over the heated air coming from the first space 10 and then cooled.
- the heated air according to the arrow 18, bypassing a below the bottom 20 of the first and second space 10, 12 extending intermediate or hollow bottom 22 is fed directly to the heat exchanger 14.
- the heat exchanger 14 on the side facing away from the first space 10 on the entire surface of a cover 24, from the in Embodiment two axial fans 26, 28 go out.
- the cooled air flows into the second space 12 to pass through the openings 30 present in the floor 20, so that the cooled air is supplied via the intermediate floor 22 to the areas in which arranged in rows heat-generating Devices cold aisles in the first room 10 are located.
- the air drawn in by the valve gates 26, 28 originates from hot passages present in the first space 10.
- this is an intrinsically rigid element such as sheet metal wall, in which the Einstromdüsen required for the axial fans 26, 28 are integrated.
- the fan, d. H. its wall ring, protective grid, impeller and motor are hingedly connected by a hinge with the cover 24 or the housing of the Einstromdüse.
- the heat exchanger surfaces can be covered directly by contact guards, on the one hand to prevent damage to the slats and on the other hand exclude a risk of injury.
- the protective grids are designed in terms of area such that a noticeable pressure drop does not occur over them.
- FIG. 2 differs from that of FIG. 1 in that warm air is drawn in via the intermediate bottom 22, in order then to flow through the heat exchanger 14 via the filter 16, the heat exchanger surface facing the first space 10 enclosing the cover 24 with the openings for the axial fans 26, 28 has.
- the other embodiments provide a construction in which a cooling arrangement according to the invention can be positioned in desired areas of the first space 10, without a division of the space is required.
- a cabinet-like housing 34 is arranged in the first space 10, which may have a cuboid shape.
- a wall of the housing 34 is formed by a heat exchanger, which is also designated by the reference numeral 14, as was done in connection with FIGS. 1 and 2.
- the heat exchanger 14 does not need to be an entire wall of the housing 34. Rather, a section is enough.
- a wall as a whole is formed over its entire surface or essentially over its entire area as a heat exchanger surface.
- the room-side surface of the heat exchanger 14 is covered with the filter 16.
- the inside of the heat exchanger 14 has the cover 24 with openings that merge into the suction sides of the axial fans 26, 28.
- the electrical system is present (reference numeral 32).
- the heated air is sucked out of the space 10 via the axial fans 26, 28, so that the heated air is cooled by means of the heat exchanger 14. Then, the cooled air at least over the Bottom portion of the housing 34 to the space 10 are recycled, provided that the cabinet or the housing 34 is disposed on a double bottom with cavity 22, wherein the bottom of the housing 34 is opened in a circumference that in the bottom 20 existing openings 30 of the cooled air can be interspersed. This is symbolized by the arrows 36, 38, 40. Furthermore, there is the possibility that the head wall 42 of the housing 34 also has air outlet openings 42 in order to allow this cooled air to flow into the space 10 (arrow 44).
- heated air is sucked via the double bottom 22 into the interior 46 of the cabinet or housing 34 (arrows 48, 50, 52), then cooled after passing through the filter 16 by means of the heat exchanger 14 and finally the space 10th to be fed to cool heat generating equipment.
- the fins of the heat exchanger can be covered with perforated mudguards.
- FIG. 5 differs from that of FIGS. 3 and 4 in that the cabinet or the housing 34 has an intermediate wall 54, which runs parallel to the heat exchanger 14.
- the interior 46 is subdivided into subspaces 56, 58.
- subspace 58 radial fans 60, 62 are arranged, the suction sides are aligned with openings in the intermediate wall 56 and connected thereto.
- heated air arrow 64
- cooled air arrows 66, 68
- openings are provided in the housing 34 in particular on the top and / or bottom side.
- 3 and 4 are distinguished from those of FIGS. 3 and 4 in that the heat exchanger 114 forming a wall of the housing 34 is designed to be without a housing, that is to say, variants which are to be emphasized are shown in FIGS.
- the heat exchanger is accommodated exclusively by a frame, without the heat exchanger surfaces are covered. Only and only the space side extending surface has the filter 16.
- the housing 34 in the region in which the centrifugal fan 160 is arranged in at least one of the peripheral walls corresponding openings, which are not further identified. This arrangement results in a self-sufficient cooling system that can be set up at desired locations of a room, without the need for a double floor.
- the embodiment Fig. 7 differs from that of Fig. 6 in that the radial fan 160 is not arranged in the bottom area, but in the head region of the housing 34. A circumferential wall of the radial section 116 receiving housing portion or the head wall 162 of the housing 34 may then have required air outlet openings so that cooled air can flow into the room.
- FIG. 6 corresponds to a downflow operation and that of FIG. 7 corresponds to a Upflow operation.
- the embodiments with a housing, of which only one wall is designed as a heat exchanger surface in particular has the advantage that corresponding housings can be strung together to provide a larger heat exchanger surface depending on the amount of air to be cooled available.
- the centrifugal fan 160 is not in the housing 34, but in the housing Double bottom 22 is disposed below the housing 34.
- only one wall of the housing 34 is formed as a heat exchanger surface. The possibility of juxtaposing corresponding housings with the centrifugal fans 116 arranged underneath them in the double bottom 22 is likewise given.
- FIGS. 8 and 9 illustrate an arrangement in which two opposite walls of the housing 34 are formed as heat exchanger surfaces, d. h., The walls are formed by the heat exchanger 14 with room side filters 16.
- the heat exchangers 14 On the inside, the heat exchangers 14 have covers 24 with openings which are connected to the suction sides of the axial fans 26, 28, 126, 128. Then the cooled air flows into the room via the pressure sides of the axial fans 26, 28, 126, 128.
- the housing 34 is arranged on openings 30 of the double bottom 20 in order to supply cooling air to the space 10 via the cavity. Further, the head wall 42 is provided with corresponding openings to also be able to supply cooled air to the room.
- axial fans 26, 28, 126, 128 are used to suck in the warm air from the space 10 and to convey it through the heat exchangers 14, radial fans 60, 62, 160, FIG. 162 used. Otherwise, structurally the same conditions as in the embodiment of FIG. 8, so that reference is made to the relevant embodiments.
- the fans 26, 28, 60, 62, 126, 128, 160, 162 are located inside the housing 34.
- the embodiment of FIG. 10 provides an arrangement in which the fans - In the exemplary embodiment, the axial fans 26, 28, 126, 128 - go out from the outside of the heat exchanger 14, so that as a result in the interior 46 of the housing 34 via the intermediate bottom 22 warm air is sucked in, after Flow through the heat exchanger 14 is supplied as cooling air to the space 10 again.
- the design of the covers, the filter, the contact guard, etc. are the same constructive solutions as in the previously described embodiments.
- the housing according to the embodiments of FIGS. 8 to 9 are arranged on a double bottom 20. Instead, it would be possible to raise the housing 34 or to form a bottom section in such a way that air outlet openings are provided on the circumferential surface side below or in the region of the heat exchanger 14 in order to supply the cold air to the room.
- the heat exchangers 14 preferably cooled water with a flow temperature between z. B. 5 ° C and 30 ° C, so there would also be the possibility of using a refrigerant that evaporates in the tubes of the heat exchanger. Outside the room then a compressor-condenser unit is arranged to condense the vaporized refrigerant and return to the heat exchanger.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013108974.7A DE102013108974A1 (en) | 2013-08-20 | 2013-08-20 | Arrangement for conditioning a room |
PCT/EP2014/064959 WO2015024704A1 (en) | 2013-08-20 | 2014-07-11 | Air conditioning arrangement for a space |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3036483A1 true EP3036483A1 (en) | 2016-06-29 |
Family
ID=51210465
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14739795.4A Withdrawn EP3036483A1 (en) | 2013-08-20 | 2014-07-11 | Air conditioning arrangement for a space |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3036483A1 (en) |
DE (1) | DE102013108974A1 (en) |
WO (1) | WO2015024704A1 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999035447A1 (en) * | 1997-12-30 | 1999-07-15 | Springer-Carrier S.A. | Air directing assembly for a room air conditioner |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE20023882U1 (en) | 2000-09-29 | 2007-03-15 | Andersen, Heiner | air conditioning |
US6672955B2 (en) | 2001-09-07 | 2004-01-06 | International Business Machines Corporation | Air flow management system for an internet data center |
GB0207382D0 (en) | 2002-03-28 | 2002-05-08 | Holland Heating Uk Ltd | Computer cabinet |
US7752858B2 (en) | 2002-11-25 | 2010-07-13 | American Power Conversion Corporation | Exhaust air removal system |
DE202004003309U1 (en) | 2004-03-01 | 2004-08-12 | Kuse, Kolja | Cooling of a computer cluster uses individual fans to draw air over motherboards with main fan to evacuate housing |
US7841199B2 (en) | 2005-05-17 | 2010-11-30 | American Power Conversion Corporation | Cold aisle isolation |
JP5207527B2 (en) * | 2008-06-05 | 2013-06-12 | 株式会社Nttファシリティーズ | Control method for air conditioning system |
DE202009002033U1 (en) | 2009-04-03 | 2009-06-25 | Weiss Klimatechnik Gmbh | Arrangement for conditioning a room |
US8031468B2 (en) * | 2009-06-03 | 2011-10-04 | American Power Conversion Corporation | Hot aisle containment cooling unit and method for cooling |
DE202009014942U1 (en) | 2009-06-22 | 2010-10-07 | Andersen, Heiner | air conditioning |
JP5268072B2 (en) * | 2009-10-13 | 2013-08-21 | 株式会社Nttファシリティーズ | Air conditioning control system and operation method thereof |
DE202009015124U1 (en) * | 2009-11-05 | 2010-03-04 | Knürr AG | Arrangement for cooling electrical and electronic components and modular units in equipment cabinets |
JP2011220665A (en) * | 2010-03-23 | 2011-11-04 | Kanden Energy Solution Co Inc | Air conditioning system |
US9605855B2 (en) * | 2011-03-14 | 2017-03-28 | Fuji Electric Co., Ltd. | Air conditioning system using outside air |
WO2013030979A1 (en) * | 2011-08-31 | 2013-03-07 | 富士通株式会社 | Air-conditioning system and heat exchanger |
DE202011051248U1 (en) * | 2011-09-09 | 2012-12-10 | Weiss Klimatechnik Gmbh | Cooling arrangement |
DE102011117908B4 (en) | 2011-10-28 | 2018-03-01 | Piotr Kubinski | Tachometer with load reserve indicator |
DE202011110056U1 (en) * | 2011-11-09 | 2012-11-30 | Heiner Andersen | climate chamber |
-
2013
- 2013-08-20 DE DE102013108974.7A patent/DE102013108974A1/en active Pending
-
2014
- 2014-07-11 EP EP14739795.4A patent/EP3036483A1/en not_active Withdrawn
- 2014-07-11 WO PCT/EP2014/064959 patent/WO2015024704A1/en active Application Filing
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999035447A1 (en) * | 1997-12-30 | 1999-07-15 | Springer-Carrier S.A. | Air directing assembly for a room air conditioner |
Non-Patent Citations (1)
Title |
---|
See also references of WO2015024704A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE102013108974A1 (en) | 2015-02-26 |
WO2015024704A1 (en) | 2015-02-26 |
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