EP3764778A1 - Vorrichtung zur belüftung eines raumes - Google Patents
Vorrichtung zur belüftung eines raumesInfo
- Publication number
- EP3764778A1 EP3764778A1 EP19714330.8A EP19714330A EP3764778A1 EP 3764778 A1 EP3764778 A1 EP 3764778A1 EP 19714330 A EP19714330 A EP 19714330A EP 3764778 A1 EP3764778 A1 EP 3764778A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- air
- air outlet
- outlet element
- animal
- animal house
- 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- Withdrawn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
- 241001465754 Metazoa Species 0.000 claims description 46
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 description 15
- 238000009826 distribution Methods 0.000 description 7
- 238000011161 development Methods 0.000 description 6
- 230000018109 developmental process Effects 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000005094 computer simulation Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 244000144972 livestock Species 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 241000283690 Bos taurus Species 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K1/00—Housing animals; Equipment therefor
- A01K1/0047—Air-conditioning, e.g. ventilation, of animal housings
- A01K1/0052—Arrangement of fans or blowers
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K1/00—Housing animals; Equipment therefor
- A01K1/0047—Air-conditioning, e.g. ventilation, of animal housings
- A01K1/0058—Construction of air inlets or outlets in roofs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
- F24F13/062—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser having one or more bowls or cones diverging in the flow direction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/082—Grilles, registers or guards
- F24F2013/088—Air-flow straightener
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2130/00—Control inputs relating to environmental factors not covered by group F24F2110/00
- F24F2130/10—Weather information or forecasts
Definitions
- the invention relates to a device for ventilating a room, comprising at least one housing with an air channel formed in the interior and a fan arranged in the air duct, wherein the air duct opens into an air outlet element with air outlet openings.
- corresponding air outlet elements are often designed as a twist outlet.
- These swirl outlets usually have one or more fins, wherein a supplied air flow is deflected at the fins.
- the distribution of air in the room is usually quite undirected and unevenly distributed. Frequently such spin outlets cause strong air currents and air turbulence within the space to be ventilated. One consequence of this can be unpleasant drafts, among other things.
- the object of the invention is therefore to provide a device for ventilation of a room, which ensures a uniform distribution of air within the room and without uncontrolled Heilverwirbelonne.
- the device for ventilating a room having at least one housing with an air channel formed in the interior and a fan arranged in the air duct, wherein the air duct opens into an air outlet with air outlet openings, according to the invention is characterized in that the air outlet element forms an outflow chamber, and in that the air duct, an air rectifier is formed.
- Outflow chamber and air rectifier thereby cause the supplied air escapes from the air outlet openings without turbulence, escapes from the air outlet openings in particular at a right angle, and distributed with defined, in particular uniform, flow velocity in the space to be ventilated.
- the air in the area of the air outlet openings can have a higher exit velocity.
- the flow rate of the supplied air is advantageously up to 3 meters per second.
- deviating flow velocities may be provided for.
- the flow rate for a draft-free ventilation of a man-made room is up to 0.1 m / s, for a cattle house up to 0.3 m / s and with targeted cooling of a room between 1 m / s and 3 m / s.
- the air rectifier is formed according to a development in the air duct between the fan and outflow chamber. Due to the fan in the air duct caused turbulence, turbulence and transverse movements of the air have no effect on the outflowing air.
- the air then passes through the outflow chamber and air outlet preferably laminar.
- the air rectifier is formed by an aligned in the flow direction of the air in the air duct grid.
- the air channel is divided into grid channels, wherein the grid channels advantageously have a length in the flow direction, which is greater than its largest width transverse to the flow direction.
- width and length are in a ratio of 1 to 1, in particular 1 to 4, to each other.
- the largest possible flow cross-section of the air rectifier can be ensured by the fact that the grid is formed by each arranged at right angles to each other walls.
- the individual grid channels have a rectangular or square cross-section. Deviating grid channels may deviate from a corresponding conditional by the cross section of the air channel shape.
- the grid channels can also be formed by tubes, in particular cylindrical tubes, in the air duct.
- the individual tubes can furthermore be held in a predetermined position as a bundle in the air duct by a perforated plate with openings dimensioned according to the diameter of the tubes, the perforated plate having dimensions equal to the cross-sectional area of the air duct.
- the air duct has a circular cross-sectional area which is slightly larger than the diameter of the fan.
- the air outlet openings are arranged and dimensioned depending on a room to be ventilated.
- the air outlet openings are then at the position of the device and the respective space, in particular the size of the room, room height and distance of the side walls to the device or the device to a adjacent device in the room, adapted.
- the number of air outlet openings and the size of the air outlet openings in the air outlet element can vary from a single air outlet opening to a plurality of air outlet openings of different or the same size.
- the number and size of the air outlet openings is advantageously determined computer-aided by a computer simulation, so that a computer-aided optimized arrangement of the air outlet openings is achieved.
- the computer simulation also allows the inclusion of room niches, room openings or window surfaces in the design of the device or the coordinated devices in a room.
- the air outlet element is dome-shaped in a further embodiment, wherein dome-shaped also includes those structures in which the outflow chamber is limited by a plurality of planner sections which form the air outlet.
- the dome-shaped air outlet element therefore also includes polygons or spherical bodies or hemispherical bodies. All of these structures and shapes of the air outlet element have in common that they enclose an outflow chamber and that can be distributed via the air outlet openings in the space to be ventilated air flowing from an arranged on a wall or a ceiling air outlet in all directions.
- the direction of the air flowing into the space to be ventilated air can be changed in a simple manner and adapted, for example, to different times of the day. This may be necessary, for example, if the room to be ventilated is heated more strongly at certain times due to solar radiation. Other reasons, the one appropriate steering of the air flow may be necessary, for example, such spaces that can be connected at least temporarily with other rooms to a larger space or otherwise resizable or have larger openings to the environment. Even a changing at different times use of such a space can cause a corresponding control of the incoming air.
- a resistant, slowly rotating air outlet allows at least a more even distribution of the incoming air within the space to be ventilated.
- a rotation can be effected for example by a stepper motor. This rotation includes depending on the fan speed rotation speeds of up to one revolution per minute.
- the housing with the air outlet element in particular only the air outlet element, can also be made telescopic, in order to allow further adaptations to ambient conditions as an alternative or in addition to a rotatable or pivotable mounting of the air outlet element.
- a telescopic design of the housing with the air outlet element, in particular only of the air outlet element may be necessary, for example, when the device is arranged on a ceiling of the room and for certain purposes, a certain clearance height must be ensured within the room.
- An example of this would be the use in an animal house which occasionally has to be passed through with an agricultural tractor, for example for cleaning purposes.
- the air outlet element can then be raised for cleaning to the ceiling and then lowered back to a suitable height for optimum ventilation.
- the air outlet element In order to be able to optimally distribute the supplied air in the space to be ventilated and to be able to adapt to changing environmental conditions, provision can furthermore be made for the air outlet element to be adjustable Having air outlet openings. Adjustable air outlet openings allow, for example, an adaptation of the ventilation to different weather conditions and environmental conditions, in particular different temperatures, for example in winter or summer. One way to perform the air outlet openings adjustable is to perform this completely or partially closable to control the size of the air outlet openings in the space to be ventilated amount of air, in particular to limit.
- the air outlet element is formed by at least two mutually displaceable half shells.
- the size of the air outlet openings is then determined on the basis of the overlap of openings in the outer half-shell with openings in the inner half-shell.
- the amount of air flowing through can be limited to completely closed air outlet openings of the air outlet. In the case of openings of the inner and outer half-shell completely or as far as possible, the maximum flow cross-section is correspondingly released, so that a maximum ventilation rate is made possible.
- each opening in the outer half-shell of the air outlet element may be associated with at least two differently sized openings in the inner half-shell of the air outlet element.
- the smaller of the two openings of the inner half-shell then has smaller dimensions than the respective opening in the outer half-shell, while the larger of the two openings of the inner half-shell with the dimensions of the opening in the outer half-shell has identical dimensions. This allows in a simple way an adjustment between winter operation and summer operation of the device, wherein the larger openings of the inner half-shell at Summer operation be brought into coincidence with the openings of the outer half shell.
- the smaller openings of the inner half-shell are brought into coincidence with the openings of the outer half-shell, while the larger openings are closed by the outer half-shell.
- the flow cross section of the air outlet openings is correspondingly lower in winter operation than in summer operation.
- air outlet openings and half shells may be provided, wherein larger air outlet openings of the inner half shell are assigned or various different sized air outlet openings are arranged in different constellations to each other to allow different ventilation scenarios.
- the air outlet openings can overlap in different ways and individual air outlet openings of one of the half shells interact with different air outlet openings of the other half shell.
- the fan is therefore designed according to a development for an operation with controllable speed, so that an adjustment of the flow velocity of the air flowing into the space to be ventilated air is also possible via a control of the fan speed.
- more than two half shells may be provided to ensure greater flexibility with respect to different ventilation scenarios.
- Each of the half-shells is preferably formed by a hemispherical structure. Also, individual half-shells can be constructed in several parts, if required by the room situation.
- the device may also have only a single air outlet element, which is exchangeably attachable to the housing.
- a replaceable air outlet for example, can be easily exchanged for an air outlet with a different arrangement and dimensioning of the air outlet, when switching from summer mode to winter operation, so that a different distribution of the air is achieved within the room.
- the device may have a heat exchanger or such a heat exchanger may be connected upstream of the air duct.
- a cooling or heating of the air flowing through the air duct can then take place, so that it has a predetermined temperature or lies in a predetermined temperature range.
- a heat source may be arranged in the air duct to heat the air.
- such a heat source can be infrared light.
- a heat sink may be provided in the air duct.
- Such a radiator or heat sink may also be integrated into the air rectifier, for example in the form of double-walled grid channels. The air rectifier then forms a kind of heat exchanger.
- lighting means for illuminating the room can also be integrated into the device, in particular into the air outlet element of the device.
- the air duct can be assigned an injection device for admixtures to be atomized. These admixtures are then distributed via the air outlet element with the outflowing air within the room.
- admixtures may be liquids or gases, in particular disinfectants or medicaments.
- a preferred application for such admixtures is the arrangement of the device in a livestock holding area, in particular a stable building.
- a corresponding injection device or corresponding nozzles can be provided in particular on the air outlet openings or also on the outside of the air outlet element.
- Preferred materials for the air outlet element are dimensionally stable or flexible fabrics and metallic or thermoplastic materials. While metallic, thermoplastic and otherwise dimensionally stable materials are particularly suitable for an air outlet element composed of at least two half shells, flexible fabrics, in particular in the case of an air outlet element formed from a single half shell, can represent a cost-effective solution.
- the outflow chamber is then formed, in which the air flowing through the air channel presses against the flexible tissue and the tissue bulges outward.
- the air duct may advantageously be formed by a rotatable Heilansaugkrümmer.
- the Heilansaugkrümmer forms a part of the housing outside the space to be ventilated and allows the air duct with its intake always pointing to the side facing away from the wind.
- a corresponding rotation of the Lucasansaugkrümmers be guaranteed that this has a wind deflector. With a rotation of the wind direction, the wind then presses against the wind deflector and ensures that the air intake manifold is automatically tracked.
- An advantageous power supply of the device can be ensured that it is connected to a solar cell.
- energy can be provided for the operation, in particular, when in strong solar radiation more energy for ventilation, especially cooling, of the room must be spent.
- a climate computer can be provided, which ensures optimal control depending on the usage and weather data.
- the operation of the device or the climate computer can also be done regardless of location via an on a mobile device to be installed App.
- a preferred use of the device for ventilation of a room is the use in stables or animal holding areas, in which case ventilation rates should be achieved with flow rates of 0.3 m / s.
- the invention therefore also relates to an animal house having at least one wall and ceiling part which delimit an animal-holding area.
- This animal stall is characterized in that the wall and ceiling part is formed by a curved roof structure between two end faces, and that at least one device is arranged on this arched roof structure.
- the design of the arched roof structure thereby optimally supports a desired ventilation rate and air distribution within the animal house.
- the roof structure is guided down to the ground and lies with two opposite sides on a substrate a defined by the animal shed and limited animal retention area.
- the roof structure by a structure of two end-face arches and formed between the arches carriers that form a framework for a spanned between these roof skin, be composed.
- the front sides of the animal house can be open or closed.
- front side walls can be equipped with which the end faces can be closed at the end faces.
- Open ends allow a simple way a modular construction of at least two animal houses. The animal stalls are put together with the open end faces and together form a larger animal holding area. The control of the ventilation devices can then be coordinated accordingly.
- the air outlet openings of the air outlet element must be designed both for individual animal houses with open or closed end faces and for a modular construction of a larger animal holding area of several animal houses.
- the animal house may have wheels on at least one of the front sides. By raising the animal barns on the opposite front side they are then easily displaced.
- at least one attachment point or the like may furthermore be provided in an upper region of the arched roof structure, in particular on at least one of the front sides of the animal pen.
- a front loader can attack and lift the animal house on one side and move or move on the wheels.
- the attachment point is accordingly to arrange according to a development on a wheel opposite end side.
- a floor for such a livestock holding area is advantageously provided a separate from the animal housing, in particular fortified, underground, on which the animal barn is movable.
- a possible background would be, for example, a corresponding concrete surface, which allows easy cleaning or a special substrate that includes lying surfaces, for example rubber mats, for the animals.
- a video camera or other recording apparatus may be integrated into the air outlet member of the apparatus.
- FIG. 1 shows a perspective view of a device for ventilating a room shown in section
- FIG. 2 shows a perspective view of an animal house according to the invention.
- FIG. 3 shows a side view of the animal house according to FIG. 2.
- FIG. 1 shows a device for ventilating a room with a housing 1 and an air channel 2 formed in the interior of the housing 1.
- a fan 3 and an air rectifier 4 are arranged, wherein the fan 3 is connected upstream of the air rectifier 4.
- the air rectifier 4 is formed by a grid 5 with a plurality of grid channels 6.
- the grid channels 6 each have a maximum width transversely to the flow direction of the air in the air duct 2, which is less than the length of the grid channels. 6
- the air channel 2 opens into an air outlet element 7, which limits an outflow chamber 8 of the device.
- the air outlet element 7 is designed to be hemispherical and extends convexly into one ventilating room.
- the air outlet element 7 has various air outlet openings 9, via which air from the outflow chamber 8 enters a space to be ventilated.
- the number and size of the air outlet openings 9 is determined as a function of a space to be ventilated and determined by computer.
- FIGs 2 and 3 each show an animal house 10 with the device 11 of Figure 1.
- the animal stall 10 shown in Figure 2 has a curved roof structure 12, which is formed by a supporting structure 13 and a roof skin 14.
- This support structure 13 has two end-face sheets 15, 15 'and two bottom supports 16, 16' connecting the end-face sheets 15, 15 '.
- the frontal arches 15, 15 'and the bottom support 16, 16' form a frame within which the roof skin 14 is stretched.
- an end wall 17 is further arranged, with which the end face is closed.
- the side of the animal house 10 with the frontal sheet 15 are also assigned wheels 18, 18 ', which in each case, as is clear in particular from Figure 3, at beyond the end-side sheet 15 also extended ends of the bottom support 16, 16' are arranged.
- an animal holding area 19 is formed with standing and lying surfaces 20 for animals 21 lying opposite one another.
- the device 11 with the air outlet element 7 can be seen.
- Arrows A and B show a distribution of air flowing in via the device 11 into the animal holding area 19. While the arrows A illustrate the distribution in the entire animal holding area 19, the bulky arrows B indicate an area which lies outside a target area of a room to be ventilated, here the animal holding area 19. Outside the target area, the air flowing from the air outlet openings 9, indicated by the arrows B, has a higher flow velocity than the ventilation rate provided for the target area.
- FIG. 3 shows how such an animal house 10 can be moved in a place.
- an abutment point 22 on which the wheels 18, 18' opposite end can be lifted with a corresponding implement 23 with front loader or the like.
- the raised animal house 10 can then be placed on the wheels 18, 18 'rolling on a, in particular fixed, underground.
- at least one ridge support 24, to which the device 11 is fastened, is arranged between the frontal arches 15, 15 '.
- the device 11 is shown in Figure 3, only the part of the housing 1, which is arranged outside the space to be ventilated and constitutes a rotatable Gutansaugkrümmer.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ventilation (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202018101428.5U DE202018101428U1 (de) | 2018-03-14 | 2018-03-14 | Vorrichtung zur Belüftung eines Raumes |
PCT/EP2019/056013 WO2019175098A1 (de) | 2018-03-14 | 2019-03-11 | Vorrichtung zur belüftung eines raumes |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3764778A1 true EP3764778A1 (de) | 2021-01-20 |
Family
ID=62636985
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19714330.8A Withdrawn EP3764778A1 (de) | 2018-03-14 | 2019-03-11 | Vorrichtung zur belüftung eines raumes |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3764778A1 (de) |
DE (1) | DE202018101428U1 (de) |
WO (1) | WO2019175098A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019238624A1 (de) * | 2018-06-11 | 2019-12-19 | Mueller Felix | Verfahren zum belüften und/oder entrauchen eines gebäudes und lüfteraufsatz zur optimierung der mischungsventilation |
CN111706947B (zh) * | 2020-06-26 | 2021-12-21 | 华能重庆能源销售有限责任公司 | 一种自动识别天气的新能源通风装置 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19822806C2 (de) * | 1998-04-30 | 2001-04-26 | Johann Schoenhammer | Stallbelüftungsanlage |
DE202010002960U1 (de) * | 2010-02-26 | 2011-08-01 | Big Dutchman International Gmbh | Zuluftkamin für Nutztierställe |
DK177994B1 (da) * | 2013-11-11 | 2015-02-23 | Skov As | Indblæsningshoved |
NL2016460B1 (en) * | 2016-03-18 | 2017-10-03 | Willem Van De Glind Marinus | A ventilation system for a livestock production building, a duct arrangement and method for supplying fresh air into a room |
-
2018
- 2018-03-14 DE DE202018101428.5U patent/DE202018101428U1/de active Active
-
2019
- 2019-03-11 WO PCT/EP2019/056013 patent/WO2019175098A1/de unknown
- 2019-03-11 EP EP19714330.8A patent/EP3764778A1/de not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
WO2019175098A1 (de) | 2019-09-19 |
DE202018101428U1 (de) | 2018-06-04 |
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