EP1462730B1 - Dispositif pour créer un rideau d'air - Google Patents

Dispositif pour créer un rideau d'air Download PDF

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Publication number
EP1462730B1
EP1462730B1 EP04004916.5A EP04004916A EP1462730B1 EP 1462730 B1 EP1462730 B1 EP 1462730B1 EP 04004916 A EP04004916 A EP 04004916A EP 1462730 B1 EP1462730 B1 EP 1462730B1
Authority
EP
European Patent Office
Prior art keywords
air
curtain
partial
flow
air curtain
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.)
Expired - Lifetime
Application number
EP04004916.5A
Other languages
German (de)
English (en)
Other versions
EP1462730A1 (fr
Inventor
Hermann Ensink Dipl.-Ing.
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.)
Kampmann GmbH and Co KG
Original Assignee
Kampmann GmbH and Co KG
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
Priority claimed from DE10320490A external-priority patent/DE10320490A1/de
Application filed by Kampmann GmbH and Co KG filed Critical Kampmann GmbH and Co KG
Priority to PL04004916T priority Critical patent/PL1462730T3/pl
Publication of EP1462730A1 publication Critical patent/EP1462730A1/fr
Application granted granted Critical
Publication of EP1462730B1 publication Critical patent/EP1462730B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F9/00—Use of air currents for screening, e.g. air curtains
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F9/00—Use of air currents for screening, e.g. air curtains
    • F24F2009/007—Use of air currents for screening, e.g. air curtains using more than one jet or band in the air curtain

Definitions

  • the invention relates to a device for producing an air curtain in the region of a building opening, in particular a gate, a door or the like, according to the preamble of claim 1.
  • Air curtains are used to prevent an air exchange in the area of building openings as far as possible.
  • building openings in particular doors and gates in, for example, industrial halls or department stores for unhindered passage or unhindered passage can be kept open, without escaping to any appreciable extent warmer or colder indoor air to the outside.
  • EP-A-0 511 576 Devices which produce from two partial air veils composed air curtains, wherein at least a partial air curtain can be a hot air curtain or a cold air curtain and possibly the hot or cold air curtain has a greater flow velocity than the other partial air curtain.
  • the present invention seeks to provide a device for producing an air curtain in the field of building openings, especially gates and doors, which effectively prevents escape of room air.
  • An apparatus for achieving this object has the features of claim 1. Characterized in that the device for generating a partial air curtain with room air compared to the other partial air curtain with hot or cold air has higher flow velocity, the partial air curtain has room air, which is a Vorschleier, over a greater penetration depth. In addition, the higher flow velocity pre-fog is more stable, which makes it less distracted by wind or increased pressure in the building.
  • each partial air curtain can be generated by its own air guiding element.
  • the device with two partial air curtains has therefore two own Heilleitorgane.
  • the Luftleitorgane are designed to produce partial air curtains with different flow velocities of the air. In this way, the different flow velocities of the individual partial air curtains are generated by the individual Heilleitorgane.
  • the different flow velocities of the air of the individual partial air curtains can be produced by differently sized air guide elements, in particular air guide elements with differently sized air outlet openings.
  • This type of generation of different flow velocities of the partial air curtain can be achieved particularly easily by a corresponding design of the different Luftleitorgane by the higher flow velocity having air curtain is brought about by a smaller air outlet opening of the respective Heilleitorgans by the smaller air outlet ensures that through this the air the pre-veil passes through at a higher speed by the air in the smaller air outlet opening of the respective Heilleitorgans is accelerated.
  • At least the air outlet opening to form the respective partial air curtain, in particular curtain vary in size. This can be done both continuously (continuously) and discontinuously.
  • the device is so easy to adapt to the given conditions, in particular openings of different sizes, by selecting the flow velocity, in particular of the pre-sling, to be greater in the case of large openings to be "closed off” by the air curtain in order to give the curtain a penetration depth which is sufficient for large openings.
  • the shipsleitorgane are formed for dividing an originating from at least one air flow generator air flow. It is thus possible, in the simplest case with a single air flow generator to form the air flow for both partial air curtain.
  • the device has a plurality, for example in series, air flow generator. At the same time, however, these generate the air flow for all partial air veils, with the different air guide elements serving to form the individual partial air veils, in particular the different flow velocities thereof.
  • the air guide elements thus have several functions: They serve on the one hand for the distribution of air flow originating from common air flow generators and on the other to form the different partial air curtains.
  • an air guide organ has a bypass, which serves to divert a portion of the air from the total air flow formed by one or more common air flow generator. It is further envisaged to associate at least one air heater with only one air guide, namely the air guide to form a warm air curtain.
  • the Heilleitorgan to form the unheated and only room temperature having Vorschleiers has no air heater. In order to prevent heating of the air used to form the Vorschleiers, allows the bypass of the Lucasleitorgans to form the Vorschleiers passing the air of the pre-curtain on the air heater to form the warm air curtain.
  • a preferred embodiment of the device described above provides, each serving to form a partial air curtain air duct to associate at least one air flow generator own.
  • These can be designed or operated differently so that partial air veils can be formed with different air flow velocities of the air.
  • the partial air veils form an overall coherent air curtain, which - seen in cross-section - has different areas, and indeed has different temperatures and flow velocities in the individual areas, wherein the pre-veiling and a room temperature having partial air veil has a greater flow velocity than the opposite the room temperature heated hot air curtain with lower flow velocity.
  • the device according to the invention can also be used to form an air curtain, which is composed of a pre-veil with room temperature and a cold air curtain with a cooled relative to the room air cold air.
  • an air curtain which is composed of a pre-veil with room temperature and a cold air curtain with a cooled relative to the room air cold air.
  • Such a device may, for example, in warm seasons, when cooled by air conditioning, the room temperature compared to the outside temperature, left open building openings "close off” against the penetration of warmer outside temperature.
  • devices with a designed as a cooling air curtain partial air curtain are also suitable for arrangement in the field of doors and gates of cold storage, cold storage or the like.
  • the figures show devices for producing an air curtain in the region of a building opening, namely a door opening 10 in a partially in the Fig. 1 shown building wall 11, which may be an outer wall or a partition.
  • the device is horizontally directed above the door opening 10, approximately in the lintel area, arranged.
  • the width of the device corresponds approximately to the width of the door opening 10.
  • the device is fastened to an interior 12 of the wall 11 facing the interior of the room.
  • the device described below is used to produce a warm air curtain in front of the door opening 10, namely on the inside of the room facing inner side 12 of the wall 11.
  • a warm air curtain in front of the door opening 10, namely on the inside of the room facing inner side 12 of the wall 11.
  • Such a device is used in heated structures or rooms the escape of warm air through open door openings to the outside to prevent.
  • the warm air curtain thus creates a barrier between colder outside air and warmer inside air.
  • the device shown here has a box-like, elongated housing 13.
  • the preferably formed from sheet metal and / or plastic housing 13 has an upper cuboid portion 14, whose length is approximately the width of the door opening 10th
  • the tapering portion 15 is about the same length as the cuboid portion 14, thus extending over the entire width of the door opening 10.
  • the portion 15 tapers down to the floor 16.
  • Both sections 14 and 15 of the housing 13 are integrally connected.
  • the interior 17 of the housing 13 extends over both sections 14 and 15.
  • the in the Fig. 1 and 2 The device shown has three air flow generators lying one behind the other in the longitudinal direction, which in the exemplary embodiment shown are axial fans 18 of the same design.
  • the device may also have other fans, such as radial fans or diagonal fans, blowers or the like.
  • the axial fans 18 are arranged in an upper, horizontal top wall 19 of the upper portion 14 of the housing 13.
  • the top wall 19 serves at the same time to support the axial fans 18.
  • the axial fans 18 suck from the ceiling area of a room or a hall air at ambient temperature and blow them into the interior of the housing 13th
  • two air-guiding elements are arranged below the axial fans 18, which are designed as air-conducting spaces 20 and 21 which are continuous over the entire length of the housing 13 of the device.
  • the Heilleitschreib 20 and 21 divide a distance from the axial fans 18 lower part of the inner space 17.
  • the cross sections of the air ducts 20 and 21 are of different sizes.
  • the adjacent to the cross section of the device adjacent air ducts 20 and 21 are separated by a longitudinally extending through the housing 13 partition 22.
  • a free top edge 23 of the partition 22 terminates at a distance below the axial fans 18, so that between the axial fans 18 and the Heilleitance 20 and 21 a over the entire interior 17 of the housing 13, so the full length and the full width of the same, continuous compensation chamber 24 is formed. From the compensation chamber 24, the air flow generated by the axial fans 18, which is directed into the interior of the housing 13, to flow on all sides over the entire inner surface of the housing 13 and evenly flow from above into both air ducts 20 and 21. It is thus the entire of the axial fans 18 in the housing 13 conveyed air inside the housing 13 divided into the Heilleitsammlung 20 and 21st
  • An air heater 25 is associated with an upper portion of the larger air guide 21 on the side of the device away from the wall 11 and the door opening 10.
  • This may be a single heat exchanger, for example a pumped water heat exchanger. But it is also conceivable to provide a plurality of heat exchangers, which are then arranged, for example, in the longitudinal direction of the device successively in the upper region of the air guide 21 in the housing 13.
  • the axial fans 18 generate in the housing 13 a downward air flow, which flows through the serving as an air divider partition 22 through the air guide chambers 20 and 21 flows.
  • the portion of the air flowing through the air guide space 21 must forcibly flow past the air heater 25, heating the air flowing through the air guide space 21, for example, at a hot air temperature of 8 ° to 30 ° above the room temperature.
  • this serves as a throttle.
  • the result is that flow through both Heilleitschreib 20 and 21 about the same amount of air, although the or the air heater 25 having Heilleitraum 21 is greater than the door opening 10 facing Heilleitraum 20.
  • the latter acts as a bypass by the total amount of the Axial fans 18 in the housing 13 transported air to the air duct 20 branched air around the or each air heater 25 passes around and thereby is not heated. As a result, the air sucked in at room temperature exits the air duct 20 again at room temperature.
  • each air outlet 20 and 21 each have an air outlet opening 26 and 27.
  • Each air outlet opening 26 and 27 extends continuously over the entire length of the housing 13 and thus over approximately the entire width of the door opening 10.
  • the two air outlet openings 26 and 27 are located at the lower, tapered end of the tapered portion 15 of the housing 13.
  • the two air outlet openings 26 and 27 have a narrow rectangular cross-sectional area.
  • the air outlet openings 26 and 27 thus have a slot-like shape.
  • the air outlet openings 26 and 27 are in the cross-sectional direction ( Fig. 2 ) of the device next to each other. Separated from each other are the air outlet openings 26 and 27 of the partition 22.
  • the two adjacent air outlet openings 26 and 27 are arranged so that they in the case of Fig. 1 shown horizontal arrangement of the device over the door opening 10 in a common, even horizontal plane.
  • the air outlet openings 26 and 27 are dimensioned; they are different widths. In the direction outward through the door opening 10 is the wider air outlet opening 27 in front of the narrower air outlet opening 26. In the embodiment shown, the Air outlet opening 26 about half as wide and thus half as large as the larger air outlet opening 27.
  • the invention is not limited thereto. It is crucial that the air outlet opening 26 below the air duct 20 to form a pre-veil with room air is smaller than the air outlet opening 27 located in front of it for the warm air. It is also conceivable to make the width of at least one air outlet opening 26 and / or 27 variable, both continuously and stepwise.
  • the divided on the air guide 20 and 21 air flows out of the air guide 20 and 21 through the air outlet openings 26 and 27 from the housing 13. Since the air outlet openings 26 and 27 lie in a horizontal plane, so arises under the air outlet openings 26 and 27, a vertically directed air curtain, which corresponds to the width of the door opening 10 at least.
  • This air curtain is made up of two partial air curtains, namely (in the direction of view through the door opening 10 to the outside), a front air curtain 28 and a behind it Vorschleier 29. These are dash-dot lined in the Fig. 2 indicated. Due to the narrower air outlet opening 26 of the air duct 20 for the room air of the curtain 29 is narrower than the warm air curtain 28.
  • the narrower air outlet opening 26 below the air duct 20 leads at the outlet of the shipsleitraums 20 to a greater narrowing than the air outlet of the Heilleitraums 21.
  • the greater flow velocity of the curtain 29 results in the curtain 29 having a greater penetration depth.
  • the pre-veil 29 which has only room air, has a lower temperature than the hot-air veil 28, whose temperature is 8 ° to 30 °, preferably about 15 °, above the room temperature, and, secondly, and that is special As a result, the curtain 29 is not slowed down so much by the thermal buoyancy of the hot air curtain 28, which is caused by the higher temperature of the hot air curtain 28.
  • the pre-veil 29 can extend over the entire door opening 10, in particular up to the room floor 16 and thus a particularly effective protection of the door opening 10 is created against the ingress of colder outside air. With the device according to the invention, it is possible to prevent nearly complete entry of cold outside air into the building interior.
  • the hot air curtain 28 receives more heat energy which ensures more pleasant temperatures in the interior of the room, in particular can contribute to space heating.
  • the Fig. 3 shows a device according to a second embodiment of the invention.
  • This is basically constructed like the previously described device ( Fig. 1 and Fig. 2 ), so the same reference numerals are used for the same parts.
  • Only the lower, tapered portion 15 of the housing 13 is formed asymmetrically.
  • a facing wall 11 to the wall portion 31 extends approximately perpendicular to a small distance from the wall.
  • the opposite wall portion 32 of the tapered portion 30 is provided with a relatively oblique course.
  • the result is that the air outlet openings 26 and 27 of the air ducts 20 and 21 are closer to the inner side 12 of the wall 11, namely only slightly spaced therefrom.
  • the distance between the air outlet openings 26 and 27 to the wall 11 is characterized in the device of the Fig.
  • the air outlet openings 26 and 27 lie in a common horizontal plane, which terminates approximately flush with a top 33 of the door opening 10. However, it is also conceivable to arrange the air outlet openings 26 and 27 in a horizontal plane which lies slightly above or below the upper side 33 of the door opening 10.
  • the function of the device Fig. 3 corresponds to that of the device FIGS. 1 and 2 , Again, passes through the smaller slot-like air outlet opening 26 of the air guide 20, a pre-curtain 29 with a higher flow velocity compared to the flow velocity of the hot air curtain 28 from.
  • the curtain 29 and the hot air curtain 28 together form an air curtain, which is directed vertically and flows at a small distance in front of the door opening 10 along.
  • each partial air curtain preferably the curtain and the hot air curtain, of at least one air flow generator, for example, in each case an axial fan, is generated. Consequently, in this device no division of the jointly generated air flow takes place.
  • the device has separate Heilleitorgane, which may also be designed as Heilleitschreib. However, these air ducts are also separated at their upper air inlet sides. So it is missing the compensation chamber 24 of the two previously described embodiments of the device.
  • the Air outlet speed from the air outlet openings to form the hot air curtain can be changed as desired by increasing or reducing the air flow rate of the air flow generator, in particular axial fan.
  • the devices described above Fig. 1 to 3 ) existing constriction of the air outlet opening 26 to form the pre-veil 29 with respect to the air outlet opening 27 to form the hot air curtain 28 is therefore not required in this alternative device with separate Heilströmungser Wegern for each Heilleitraum.
  • differently sized air outlet openings can also be used in the alternative device in order to increase the flow velocity of the air of the curtain 29 further, if necessary, in relation to the flow speed of the hot air curtain 28.
  • the above-described embodiments of the invention relate to devices for the production of warm air curtains 28 and Vorschleiern 29.
  • the invention is also suitable for devices that are used in air-conditioned rooms or cold stores, where outside there is a higher temperature than inside.
  • the device is designed to form at least one cold air curtain and a curtain, wherein the air flowing through the Lucasleitraum 21 air is not heated, but is cooled.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)

Claims (11)

  1. Dispositif pour créer un rideau d'air dans la région d'une ouverture de bâtiment, en particulier d'un portail, d'une porte ou analogue, avec au moins un générateur d'écoulement d'air, au moins un réchauffeur ou refroidisseur d'air et des organes de guidage d'air avec des ouvertures de sortie d'air juxtaposées (26, 27) pour la formation du rideau d'air à partir d'au moins deux rideaux d'air partiels voisins, dans lequel un rideau d'air partiel avec une vitesse d'écoulement plus élevée qu'un autre rideau d'air partiel peut être produit et ledit un rideau d'air partiel est un rideau d'air chaud (28) ou un rideau d'air froid et l'autre rideau d'air partiel est un pré-rideau (29) à la température ambiante, caractérisé en ce que le pré-rideau (29) présente une vitesse d'écoulement plus élevée que le rideau d'air chaud (28) ou le rideau d'air froid.
  2. Dispositif selon la revendication 1, caractérisé en ce que chaque rideau d'air partiel peut être formé par un organe de guidage d'air particulier, dans lequel les organes de guidage d'air sont configurés de façon à créer les rideaux d'air partiels avec des vitesses d'écoulement différentes.
  3. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que les organes de guidage d'air sont dotés d'ouvertures de sortie d'air (26, 27) de grandeur différente, en particulier de largeur différente.
  4. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce qu'une ouverture de sortie d'air (26) est de grandeur, en particulier de largeur variable.
  5. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que les organes de guidage d'air sont configurés de façon à diviser un écoulement d'air émanant d'au moins un générateur d'écoulement d'air, de préférence un organe de guidage d'air présente une dérivation, par laquelle une partie de l'écoulement d'air peut contourner le réchauffeur d'air.
  6. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce qu'au moins un générateur d'écoulement d'air est associé à chaque organe de guidage d'air servant à la formation d'un rideau d'air partiel.
  7. Dispositif selon la revendication 6, caractérisé en ce que chaque rideau d'air partiel peut être formé par un générateur d'écoulement d'air particulier et un organe de guidage d'air associé à chaque générateur d'écoulement d'air, dans lequel les générateurs d'écoulement d'air sont configurés de façon à produire des vitesses d'écoulement d'air différentes pour la formation des rideaux d'air partiels.
  8. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce qu'au moins un réchauffeur ou un refroidisseur d'air est associé à un organe de guidage d'air.
  9. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que des ouvertures de sortie d'air (26, 27) des organes de guidage d'air sont disposées l'une à côté de l'autre pour la création de rideaux d'air partiels de même orientation disposés l'un à côté de l'autre.
  10. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que chaque ouverture de sortie d'air (26, 27) est formée par une fente de sortie d'air allongée, dans lequel les ouvertures de sortie d'air (26, 27) pour la création des rideaux d'air partiels individuels sont de préférences situées dans un plan commun, qui s'étend en particulier transversalement à la direction d'écoulement du rideau d'air, en particulier des rideaux d'air partiels.
  11. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que les organes de guidage d'air sont formés au moins en partie par un boîtier (13) et une paroi de séparation (22) est de préférence disposée dans le boîtier (13), laquelle forme respectivement une autre partie d'un organe de guidage d'air respectif, en particulier délimite des organes de guidage d'air voisins.
EP04004916.5A 2003-03-25 2004-03-03 Dispositif pour créer un rideau d'air Expired - Lifetime EP1462730B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL04004916T PL1462730T3 (pl) 2003-03-25 2004-03-03 Urządzenie do wytwarzania kurtyny powietrznej

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10313392 2003-03-25
DE10313392 2003-03-25
DE10320490 2003-05-08
DE10320490A DE10320490A1 (de) 2003-03-25 2003-05-08 Vorrichtung zur Erzeugung eines Luftschleiers

Publications (2)

Publication Number Publication Date
EP1462730A1 EP1462730A1 (fr) 2004-09-29
EP1462730B1 true EP1462730B1 (fr) 2015-09-09

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EP04004916.5A Expired - Lifetime EP1462730B1 (fr) 2003-03-25 2004-03-03 Dispositif pour créer un rideau d'air

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EP (1) EP1462730B1 (fr)
PL (1) PL1462730T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108758958A (zh) * 2018-06-13 2018-11-06 广州西奥多电气设备有限公司 带净化内循环功能的多排风冷暖一体空气幕及其控制方法
WO2020089572A1 (fr) 2018-11-01 2020-05-07 CPA Engineered Solutions Limited Barrière à l'air
EP3855085B1 (fr) * 2020-01-22 2023-11-08 Hauser GmbH Dispositif de génération d'un rideau d'air

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PL387085A1 (pl) 2009-01-21 2010-08-02 Flowair Głogowski I Brzeziński Spółka Jawna Kurtyna powietrzna ze strumieniem pomocniczym
GB2480884A (en) * 2010-06-05 2011-12-07 Thermoscreens Ltd Air Curtain Discharge Device
CN103216905B (zh) * 2013-04-23 2016-01-20 中国检验检疫科学研究院 增强风幕阻隔功能的方法及风幕机
CN103196201B (zh) * 2013-04-23 2016-01-20 中国检验检疫科学研究院 室内外隔离系统
DE102015104705A1 (de) 2014-04-04 2015-10-08 Teddington Luftschleieranlagen Gmbh Vorrichtung zur Erzeugung eines Luftschleiers
IT202000003224A1 (it) * 2020-02-18 2021-08-18 Carlieuklima S R L Apparecchiatura per la formazione di una barriera d’aria
CN112556082B (zh) * 2020-11-25 2022-07-26 广州西奥多科技有限公司 一种智能空气幕

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US2593702A (en) * 1948-04-13 1952-04-22 Claude B Schneible Gaseous curtain for ventilating exhaust
GB1488513A (en) * 1974-04-26 1977-10-12 Howorth Air Eng Ltd Clean air zone
JPH04327736A (ja) * 1991-04-30 1992-11-17 Mitsubishi Heavy Ind Ltd 流体吸引ノズル及び流体処理装置
FR2756910B1 (fr) * 1996-12-10 1999-01-08 Commissariat Energie Atomique Procede de separation dynamique de deux zones par un rideau d'air propre
NL1013823C2 (nl) * 1999-12-13 2001-06-14 C A L M Techniek B V Werkwijze voor het verwarmen van een grote hoge ruimte, zoals in een kerkgebouw, alsmede inrichting voor het uitvoeren van die werkwijze en inblaasrooster in het bijzonder bestemd voor toepassing bij de werkwijze.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108758958A (zh) * 2018-06-13 2018-11-06 广州西奥多电气设备有限公司 带净化内循环功能的多排风冷暖一体空气幕及其控制方法
CN108758958B (zh) * 2018-06-13 2021-05-04 广州西奥多电气设备有限公司 带净化内循环功能的多排风冷暖一体空气幕装置及其控制方法
WO2020089572A1 (fr) 2018-11-01 2020-05-07 CPA Engineered Solutions Limited Barrière à l'air
EP3855085B1 (fr) * 2020-01-22 2023-11-08 Hauser GmbH Dispositif de génération d'un rideau d'air

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Publication number Publication date
PL1462730T3 (pl) 2016-06-30
EP1462730A1 (fr) 2004-09-29

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