EP2402674A1 - Air passage - Google Patents

Air passage Download PDF

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Publication number
EP2402674A1
EP2402674A1 EP11405273A EP11405273A EP2402674A1 EP 2402674 A1 EP2402674 A1 EP 2402674A1 EP 11405273 A EP11405273 A EP 11405273A EP 11405273 A EP11405273 A EP 11405273A EP 2402674 A1 EP2402674 A1 EP 2402674A1
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EP
European Patent Office
Prior art keywords
areas
air
permeable
openings
wall
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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.)
Granted
Application number
EP11405273A
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German (de)
French (fr)
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EP2402674B1 (en
Inventor
Gregory Dr.-Ing. Gottschalk
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Trox Hesco Schweiz AG
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Trox Hesco Schweiz AG
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Publication of EP2402674A1 publication Critical patent/EP2402674A1/en
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Publication of EP2402674B1 publication Critical patent/EP2402674B1/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02Ducting arrangements
    • F24F13/06Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
    • F24F13/068Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser formed as perforated walls, ceilings or floors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24Means for preventing or suppressing noise
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24Means for preventing or suppressing noise
    • F24F2013/242Sound-absorbing material

Abstract

The air passage device has multiple evenly distributed openings, for which a space-lateral arrangement is provided. An external exhaust wall (2) is provided behind the space-lateral arrangement. A supply air chamber is provided with an air supply nozzle. The openings of multiple areas of an exhaust wall are locked on a side averted to a ventilated area such that the exhaust wall is subdivided in together-bordering permeable areas (8,14) and impermeable areas (5,16).

Description

Die Erfindung betrifft einen Luftdurchlass für die Belüftung eines Raumes, mit einer zahlreiche, gleichmässig verteilte Öffnungen aufweisenden, für die raumseitige Anordnung bestimmten, äusseren Ausströmwand und mit einer hinter dieser vorgesehenen, einen Zuströmstutzen aufweisenden Zuluftkammer, wobei diese Öffnungen nach vorgegebenem Muster über die Ausströmwand verteilt sind.The invention relates to an air passage for the ventilation of a room, having a numerous, evenly distributed openings, intended for the room-side arrangement, the outer Ausströmwand and provided behind this, having an inflow air inlet chamber, said openings distributed according to a predetermined pattern on the exhaust wall are.

Luftdurchlässe dieser Art sind beispielsweise in den folgenden Dokumenten offenbart: DE19730180 , DE2457984 , DE3240842 , EP1078205 und EP1541934 . Die zahlreichen, kleinen Öffnungen ihrer Ausströmwand sind z.B. nach Art einer für Raumauskleidungen üblichen Lochplatte gleichmässig verteilt, so dass solche Luftdurchlässe in ihrem Aussehen sich nicht gegenüber von in der Ebene der Raumdecke angrenzend montierten, nicht mit einer Zuluftkammer verbundenen, der Schalldämmung dienenden Verkleidungsplatten unterscheiden, falls die Öffnungen aufgrund ihrer geringen Grösse überhaupt in Erscheinung treten.Air vents of this type are disclosed, for example, in the following documents: DE19730180 . DE2457984 . DE3240842 . EP1078205 and EP1541934 , The numerous, small openings of their discharge wall are evenly distributed, for example, in the manner of a room lining for perforated plates, so that such air diffusers in appearance not opposite mounted in the plane of the ceiling adjacent, not associated with a supply air chamber, the sound insulation serving cladding panels, if the openings appear at all due to their small size.

Da somit die Grösse und Anordnung der in der Ausströmwand des Luftdurchlasses für die Luftdurchströmung vorgesehenen Öffnungen denjenigen der angrenzenden, zur Schalldämmung durchlöcherten Verkleidungsplatten angepasst ist, ergibt sich für die zahlreichen, durch diese Öffnungen ausströmenden Luftstrahlen eine zu geringe Strömungsgeschwindigkeit und ausserdem eine Bündelung bzw. ein Zusammenströmen benachbarter Luftstrahlen mit folglich geringer Induktionswirkung auf die umgebende Raumluft, so dass die Eindringtiefe der zugeführten Frischluft und die Vermischung mit der Raumluft gering ist.Thus, since the size and arrangement of the openings provided in the discharge wall of the air passage for the air flow is adapted to those of the adjacent, perforated for sound insulation cladding panels, resulting for the numerous air jets flowing through these openings too low a flow rate and also a bundling or a Confluence of adjacent air jets with consequently low induction effect on the surrounding room air, so that the penetration depth of the supplied fresh air and the mixing with the room air is low.

Der Erfindung liegt die Aufgabe zugrunde, die dargelegten Nachteile bekannter Luftdurchlässe zu vermeiden und somit einen Luftdurchlass zu finden, durch den für eine vorgegebene, für die Lufterneuerung im zu belüftenden Raum optimale Luftmenge eine verbesserte Raumdurchlüftung erreicht wird. Die Lösung dieser Aufgabe erfolgt erfindungsgemäss aufgrund der kennzeichnenden Merkmale des Patentanspruchs 1. Vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der abhängigen Patentansprüche und in der folgenden Beschreibung anhand der Zeichnungen erläutert. Es zeigen:

  • Fig. 1 bis Fig.3 jeweils eine Ansicht gegen die Rückseite der Ausströmwand eines erfindungsgemässen Luftdurchlasses mit drei verschiedenen Mustern der Verteilung zwischen ihren durchlässigen und undurchlässigen Bereichen und mit aufgrund ihrer geringen Grösse nichtdargestellten Durchströmungsöffnungen.
The invention has for its object to avoid the disadvantages of known air outlets and thus to find an air passage through which for a given, for the air renewal in the room to be ventilated optimum air volume improved ventilation is achieved. The solution of this object is achieved according to the invention due to the characterizing features of claim 1. Advantageous embodiments of the invention are the subject of the dependent claims and explained in the following description with reference to the drawings. Show it:
  • Fig. 1 to Fig.3 in each case a view against the back of the discharge wall of an inventive air passage with three different patterns of distribution between their permeable and impermeable areas and with not shown due to their small size flow openings.

Die dargestellten Ausströmwände 1, 2 und 3 nach Fig.1 bis Fig.3 bilden den erfindungswesentlichen Bestandteil eines Luftdurchlasses und begrenzen somit nach aussen eine auf an sich bekannte Weise hinter ihnen angeordnete, einen Zuströmstutzen für Frischluft aufweisende Zuluftkammer. Ihre Form und Grösse, ihr Material und Farbgebung sowie die Anordnung ihrer Öffnungen für die Luftdurchströmung sind vorzugsweise identisch zu angrenzend zu montierenden Verkleidungsplatten einer Raumwand und vorzugsweise einer Raumdecke, mit dem Unterschied, dass die in angrenzenden Verkleidungsplatten vorgesehenen kleinen Öffnungen lediglich der Schalldämmung dienen. Folglich kann für die Herstellung einer Ausströmwand 1, 2, 3 eines erfindungsgemässen Luftdurchlasses vorzugsweise eine gleiche Platte aus gelochtem Blech verwendet werden, wie für die genannten, schalldämmenden Verkleidungsplatten, einschliesslich einer auf deren Rückseite aufgebrachten, schalldämmenden, luftdurchlässigen Beschichtung aus einem Faservlies.The illustrated Ausströmwand 1, 2 and 3 after Fig.1 to Fig.3 form the constituent part of an air passage essential to the invention and thus define, outwardly, a supply air chamber having an inlet connection for fresh air, arranged in a manner known per se. Their shape and size, their material and color and the arrangement of their openings for the air flow are preferably identical to adjacent cladding panels of a room wall and preferably a ceiling, with the difference that the provided in adjacent cladding panels small openings only serve the sound insulation. Consequently, for the production of a discharge wall 1, 2, 3 of an inventive air passage preferably a same plate of perforated plate can be used as for the said sound-absorbing cladding panels, including a deposited on the back, sound-absorbing, air-permeable coating of a nonwoven fabric.

Der wesentliche Unterschied der Ausströmwand 1, 2, 3 eines erfindungsgemässen Luftdurchlasses gegenüber solchen schalldämmenden Verkleidungsplatten besteht jedoch darin, dass die Öffnungen von mehreren Bereichen 4, 5, 6 der Ausströmwand 1, 2 oder 3 auf ihrer dem zu belüftenden Raum abgekehrten Seite verschlossen sind, so dass eine Ausströmwand 1, 2, 3 in durchlässige Bereiche 7, 8 , 9 und undurchlässige Bereiche 4, 5, 6 unterteilt ist.However, the essential difference of the discharge wall 1, 2, 3 of an air passage according to the invention in relation to such sound-absorbing lining panels is the openings of several areas 4, 5, 6 of the discharge wall 1, 2 or 3 are closed on their side facing away from the space to be ventilated, so that a discharge wall 1, 2, 3 in permeable areas 7, 8, 9 and impermeable areas 4 , 5, 6 is divided.

Da somit die Luft nur durch die durchlässigen Bereiche 7, 8, 9 der Ausströmwand 1, 2, 3 ausströmen kann, ergibt sich eine entsprechend grössere Strömungsgeschwindigkeit in ihren jeweiligen kleinen Öffnungen und folglich eine höhere Eindringtiefe in den zu belüftenden Raum. Da die durchlässigen Bereiche 7, 8, 9 ausserdem zusätzliche Begrenzungslinien 10, 11, 12 gegenüber den undurchlässigen Bereichen 4, 5, 6 bilden, erfolgt entlang dieser Begrenzungslinien 10, 11, 12 ein induzierender bzw. ansaugender und mitreissender Kontakt der an den Öffnungen gebildeten intensiveren Luftstrahlen mit Raumluft, so dass eine verbesserte Raumdurchlüftung erzielt wird.Since thus the air can only flow out through the permeable regions 7, 8, 9 of the discharge wall 1, 2, 3, a correspondingly greater flow velocity results in their respective small openings and consequently a higher penetration depth into the space to be ventilated. Since the transmissive regions 7, 8, 9 also form additional boundary lines 10, 11, 12 opposite the impermeable regions 4, 5, 6, along these boundary lines 10, 11, 12 an inducing or enticing and enticing contact is formed between the openings formed at the openings more intensive air jets with room air, so that an improved room ventilation is achieved.

Um eine solche Wirkung in möglichst grossem Masse zu erzielen, sollte das durch diese Begrenzungslinien 10, 11, 12 gebildete Muster so gewählt werden, dass sich eine möglichst grosse Gesamtlänge dieser Begrenzungslinien 10, 11, 12 ergibt, denn die Grösse der erzielten Induktion von Raumluft durch die Zuluft ist nicht nur proportional zur Grösse der Luftgeschwindigkeit sondern auch zur Länge dieser Begrenzungslinien 10, 11, 12 zwischen Bereichen mit Zuluftstrahlen und Bereichen von induzierbarer Raumluft.In order to achieve such an effect in the greatest possible extent, the pattern formed by these boundary lines 10, 11, 12 should be selected such that the largest possible overall length of these boundary lines 10, 11, 12 results, because the size of the induction of indoor air achieved through the supply air is not only proportional to the size of the air velocity but also to the length of these boundary lines 10, 11, 12 between areas with supply air jets and areas of inducible room air.

Für eine möglichst grosse Länge dieser Begrenzungslinien sind bei den in Fig.1 bis 3 dargestellten Ausführungsbeispielen der Erfindung durchlässige Bereiche 13, 14, 15 jeweils in den Eckbereichen der viereckigen Ausströmwand 1, 2, 3 vorgesehen, so dass dort die ausströmenden Luftstrahlen vermehrt Luft aus Bereichen ausserhalb des Zuluftdurchlasses induzieren können.For the largest possible length of these boundary lines are in the in Fig.1 to 3 illustrated embodiments of the invention permeable areas 13, 14, 15 respectively in the corner regions of the square Ausströmwand 1, 2, 3 are provided, so that there the air jets flowing out can increasingly induce air from areas outside the Zuluftdurchlasses.

Gegenüber dem Ausführungsbeispiel nach Fig.1 mit verhältnismässig einfacher, schachbrettartiger Gestaltung des Musters aus Begrenzungslinien 10, haben die durchlässigen Bereiche 8, 9 der Ausführungsbeispiele nach Fig. 2 und 3 mehr als vier und damit auch spitzwinkelige Ecken, so dass deren Begrenzungslinien 11, 12 im Verhältnis zur Grösse dieser Bereiche 8, 9 eine grössere Länge aufweisen, mit entsprechend besserer Wirkung zur Induzierung von Raumluft.According to the embodiment according to Fig.1 with relatively simple, checkerboard-like design of the pattern of boundary lines 10, the permeable areas 8, 9 of the embodiments after FIGS. 2 and 3 more than four and thus also acute-angled corners, so that their boundary lines 11, 12 in relation to the size of these areas 8, 9 have a greater length, with a correspondingly better effect for inducing room air.

Weiterhin ist bei den Ausführungsbeispielen nach Fig.2 und Fig.3 das Muster aus durchlässigen und undurchlässigen Bereichen bzw. deren gegenseitige Begrenzungslinien 11,12 so gestaltet, dass entweder nur in Querrichtung der rechteckförmigen Ausströmwand 2 entsprechend Fig.2 oder sowohl in deren Quer- als auch in ihrer Längsrichtung entsprechend Fig.3 undurchlässige Bereiche 16, 17, 18 vorhanden sind, die sich über die gesamte Breite bzw. Länge der rechteckförmigen Ausströmwand 2 bzw. 3 erstrecken. Solche Ausführungen der Erfindung haben den Vorteil, dass in Folge der Induktionswirkung der aus den durchlässigen Bereichen 8, 9 ausströmenden Luft Raumluft, ungehindert durch ausströmende Luft aus anderen durchlässigen Bereichen 8, 9, bis zum mittleren Bereich der Ausströmwand 2, 3 entlang dieser nachströmen kann.Furthermore, according to the exemplary embodiments Fig.2 and Fig.3 the pattern of permeable and impermeable areas or their mutual boundary lines 11,12 designed so that either only in the transverse direction of the rectangular discharge wall 2 accordingly Fig.2 or correspondingly in both their transverse and longitudinal directions Figure 3 impermeable areas 16, 17, 18 are present, which extend over the entire width or length of the rectangular discharge wall 2 and 3, respectively. Such embodiments of the invention have the advantage that as a result of the induction effect of the air flowing out of the permeable regions 8, 9 room air, unhindered by outflowing air from other permeable areas 8, 9, can flow to the central region of the discharge wall 2, 3 along this ,

Die Begrenzungslinien 10, 11, 12 zwischen den durchlässigen und undurchlässigen Bereichen einer Ausströmwand 1, 2, 3 sind vorzugsweise geradlinig, um ein optimales Verhältnis zwischen deren Länge im Verhältnis zur Grösse der durchlässigen Bereiche 7, 8, 9 zu erzielen. Ausserdem lassen sich auf solche Weise ergebende Muster einfacher herstellen. Die Erfindung lässt sich jedoch auch mit gekrümmter oder nur in bestimmten Bereichen gekrümmter Ausführung dieser Begrenzungslinien realisieren.The boundary lines 10, 11, 12 between the permeable and impermeable regions of a discharge wall 1, 2, 3 are preferably rectilinear in order to achieve an optimum ratio between their length in relation to the size of the permeable regions 7, 8, 9. In addition, patterns resulting in such a way can be made easier. However, the invention can also be realized with curved or only in certain areas curved execution of these boundary lines.

Das Herstellen der undurchlässigen Bereiche 16, 17, 18 einer Ausströmwand 1, 2, 3 kann durch Abdecken bzw. Laminieren ihrer Rückseite durch eine entsprechend zugeschnitteneThe production of the impermeable regions 16, 17, 18 of an outflow wall 1, 2, 3 can by covering or laminating their back by a tailored accordingly

Folie erfolgen oder auch durch Farbauftrag auf diese Bereiche, so dass die kleinen Luftöffnungen durch eindringende und sich verfestigende Farbflüssigkeit verschlossen werden.Foil done or by applying paint to these areas, so that the small air openings are closed by penetrating and solidifying paint liquid.

Bei einer erwähnten Ausführung mit rückseitiger Beschichtung der Ausströmwand 1, 2, 3 durch einen schallabsorbierenden Faservlies kann die Undurchlässigkeit in gleicher Weise durch Farbauftrag auf die betreffenden Bereiche des Faservlieses erfolgen.In a mentioned embodiment with back coating of the discharge wall 1, 2, 3 by a sound-absorbing nonwoven fabric, the impermeability can be carried out in the same way by applying paint to the respective areas of the nonwoven fabric.

Claims (9)

Luftdurchlass für die Belüftung eines Raumes, mit einer zahlreiche, gleichmässig verteilte Öffnungen aufweisenden, für die raumseitige Anordnung bestimmten, äusseren Ausströmwand (1,2,3) und mit einer hinter dieser vorgesehenen, einen Zuströmstutzen aufweisenden Zuluftkammer, wobei diese Öffnungen nach vorgegebenem Muster über die Ausströmwand verteilt sind, dadurch gekennzeichnet, dass die Öffnungen von mehreren Bereichen (4,5,6) der Ausströmwand (1,2,3) auf ihrer dem zu belüftenden Raum abgekehrten Seite verschlossen sind, so dass die Ausströmwand (1,2,3) in aneinandergrenzende durchlässige (7,8,9) und undurchlässige (4,5,6) Bereiche unterteilt ist.Air passage for the ventilation of a room, with a numerous, evenly distributed openings, intended for the room-side arrangement, the outer Ausströmwand (1,2,3) and with a provided behind this, having an inflow air inlet chamber, said openings on a predetermined pattern on the outlet wall are distributed, characterized in that the openings of several areas (4, 5, 6) of the outlet wall (1, 2, 3) are closed on their side facing away from the space to be ventilated, so that the outlet wall (1, 2, 3) is subdivided into contiguous permeable (7,8,9) and impermeable (4,5,6) areas. Luftdurchlass nach Anspruch 1, dadurch gekennzeichnet, dass seine Ausströmwand (1, 2,3) die Form einer viereckigen, schallabsorbierende Löcher aufweisenden Platte einer Raumauskleidung hat, indem sie zur ästhetisch gleichartigen Einordnung in eine Raumauskleidung bestimmt ist.Air outlet according to claim 1, characterized in that its discharge wall (1, 2, 3) has the shape of a quadrangular, sound-absorbing holes plate of a space lining, in that it is intended for aesthetically similar arrangement in a space lining. Luftdurchlass nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Eckbereiche der Ausströmwand (1,2,3) durchlässige Bereiche (7,8,9) bilden.Air passage according to claim 1 or 2, characterized in that the corner regions of the discharge wall (1,2,3) form permeable regions (7,8,9). Luftdurchlass nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die durchlässigen Bereiche (7,8,9) eckig sind.Air outlet according to one of claims 1 to 3, characterized in that the permeable areas (7,8,9) are square. Luftdurchlass nach Anspruch 4, dadurch gekennzeichnet, dass die durchlässigen Bereiche mehr als vier Ecken aufweisen.Air passage according to claim 4, characterized in that the permeable areas have more than four corners. Luftdurchlass nach Anspruch 5, dadurch gekennzeichnet, dass eine Mehrzahl der durchlässigen Bereiche (8,9) spitzwinklig zueinander verlaufende Begrenzungslinien aufweist.Air passage according to claim 5, characterized in that a plurality of the permeable regions (8,9) has at an acute angle to each other extending boundary lines. Luftdurchlass nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass undurchlässige Bereiche (16,17,18) vorhanden sind, die sich über die gesamte Breite bzw. Länge der Ausströmwand (2,3) erstrecken.Air outlet according to one of claims 1 to 6, characterized in that there are impermeable regions (16, 17, 18) which extend over the entire width or length of the discharge wall (2, 3). Luftdurchlass nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die Rückseite der Ausströmwand (1,2,3) durch einen schallabsorbierenden Faservlies beschichtet ist.Air outlet according to one of claims 1 to 7, characterized in that the back of the Ausströmwand (1,2,3) is coated by a sound-absorbing nonwoven fabric. Luftdurchlass nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die Löcher der undurchlässigen Bereiche (4,5,6) durch einen in diesen Bereichen (7,8,9) rückseitig an der Ausströmwand (1,2,3) vorgesehenen Farbauftrag verschlossen sind.Air outlet according to one of claims 1 to 8, characterized in that the holes of the impermeable areas (4,5,6) by a in these areas (7,8,9) back on the Ausströmwand (1,2,3) provided paint are closed.
EP20110405273 2010-06-30 2011-06-21 Air passage Not-in-force EP2402674B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH10552010A CH703355A2 (en) 2010-06-30 2010-06-30 Air passage.

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EP2402674A1 true EP2402674A1 (en) 2012-01-04
EP2402674B1 EP2402674B1 (en) 2015-02-25

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1226272A (en) * 1968-07-03 1971-03-24
DE2351232A1 (en) * 1973-10-12 1975-04-17 Zeiss Ikon Ag Ventilating and air-conditioning system air choke - has holes tapered and spaced for even distribution of overall open area
DE2457984A1 (en) 1974-12-07 1976-06-16 Brandi Ingenieure Gmbh Air conditioning system for operating theatres - supplies air through plenum box with perforated base and primary jets
DE3240842A1 (en) 1982-11-05 1984-05-10 Rheinhold & Mahla GmbH, 8000 München Process and apparatus for conducting large quantities of intake air into the room air
DE4244409A1 (en) * 1992-12-29 1993-06-03 Ltg Lufttechnische Gmbh Air conditioning source intake and heat exchanger - comprises housing with by pass between exchanger and outlet housing
DE19730180A1 (en) 1997-07-15 1999-01-21 Wilhelmi Werke Ag Process for air conditioning and ceiling for such a process
EP1078205A1 (en) 1999-03-03 2001-02-28 Barcol-Air Ag Air cooling element, method for operating the same, and an air cooling arrangement
EP1541934A1 (en) 2003-12-08 2005-06-15 Barcol-Air Ag Cooling element, cooling device and operating method therefor

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1226272A (en) * 1968-07-03 1971-03-24
DE2351232A1 (en) * 1973-10-12 1975-04-17 Zeiss Ikon Ag Ventilating and air-conditioning system air choke - has holes tapered and spaced for even distribution of overall open area
DE2457984A1 (en) 1974-12-07 1976-06-16 Brandi Ingenieure Gmbh Air conditioning system for operating theatres - supplies air through plenum box with perforated base and primary jets
DE3240842A1 (en) 1982-11-05 1984-05-10 Rheinhold & Mahla GmbH, 8000 München Process and apparatus for conducting large quantities of intake air into the room air
DE4244409A1 (en) * 1992-12-29 1993-06-03 Ltg Lufttechnische Gmbh Air conditioning source intake and heat exchanger - comprises housing with by pass between exchanger and outlet housing
DE19730180A1 (en) 1997-07-15 1999-01-21 Wilhelmi Werke Ag Process for air conditioning and ceiling for such a process
EP1078205A1 (en) 1999-03-03 2001-02-28 Barcol-Air Ag Air cooling element, method for operating the same, and an air cooling arrangement
EP1541934A1 (en) 2003-12-08 2005-06-15 Barcol-Air Ag Cooling element, cooling device and operating method therefor

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Publication number Publication date
CH703355A2 (en) 2011-12-30
EP2402674B1 (en) 2015-02-25

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