EP0787954B1 - Air outlet device - Google Patents

Air outlet device Download PDF

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Publication number
EP0787954B1
EP0787954B1 EP96810910A EP96810910A EP0787954B1 EP 0787954 B1 EP0787954 B1 EP 0787954B1 EP 96810910 A EP96810910 A EP 96810910A EP 96810910 A EP96810910 A EP 96810910A EP 0787954 B1 EP0787954 B1 EP 0787954B1
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EP
European Patent Office
Prior art keywords
outlet
wall
ducts
outlet wall
air
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
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EP96810910A
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German (de)
French (fr)
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EP0787954A3 (en
EP0787954A2 (en
Inventor
Gregory Dr. Ing. Gottschalk
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HESCO (SCHWEIZ) AG
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Hesco (Schweiz) AG
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Publication of EP0787954A3 publication Critical patent/EP0787954A3/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

Definitions

  • the invention relates to a device for the introduction of Air in a room to be ventilated or air-conditioned, with an outlet wall of a device housing made from honeycomb tight side-by-side, thin-walled outlet channels consists of the length of the thin-walled outlet channels is larger than its largest transverse dimension, with the outlet edges the thin-walled outlet channels together the outer Form the interface of the outlet wall.
  • a device for the introduction of Air in a room to be ventilated or air-conditioned with an outlet wall of a device housing made from honeycomb tight side-by-side, thin-walled outlet channels consists of the length of the thin-walled outlet channels is larger than its largest transverse dimension, with the outlet edges the thin-walled outlet channels together the outer Form the interface of the outlet wall.
  • Devices of the type mentioned have the advantage that the Air flow from the outlet wall with only a little over the exit surface changing speed gradient occurs, so that the air enters the room like a piston.
  • a device known from EP-A-0 563 509 is for the outflow in the floor area of a room to be ventilated. She has one for this outlet wall provided on the side of the device housing, through a honeycomb grid arranged between two perforated plates is formed such that each outlet channel or honeycomb at its inner and outer end through a hole in the adjacent Perforated sheet is limited and the perforated cross section is smaller than the cross section of the respective outlet duct. To compensate for the influence of the gravity of the colder air, the outlet channels or honeycombs have one accordingly diagonally upward course.
  • resulting profile of the total flow is at predetermined amount of the total flow with a certain under-temperature solely by the shape of the ones to be ventilated Space extending into the outlet wall and the uniform Orientation of their numerous outlet channels determined.
  • the device accordingly to protrude into the room.
  • the invention has for its object a device mentioned type to find the one that best suits the respective spatial Adaptable introduction of air into one Space allows, so that a particularly advantageous for ventilation Flow profile can be achieved without the outer Shape of the device and its outlet wall by this The task must be determined.
  • a different Flow rate in the numerous outlet channels determined by the length of the exhaust ducts and / or their cross-sectional size are graduated.
  • a device 1 has a housing 2 which with a connection, not shown, for connection to the supply air duct of a ventilation system or an air conditioner and with an outlet wall 3 for introducing air into one room to be ventilated or air-conditioned.
  • This housing 2 is for insertion e.g. behind the ceiling panel of a room to be ventilated, so that the Outlet wall 3 a limitation of the room to be air-conditioned forms, for example, flush with the adjacent room wall transforms.
  • Fig. 2 shows a non-uniform example of an area.
  • Thick outlet wall 3 which is characterized by a correspondingly graded length of the outlet channels 4 resulting different outflow velocity, so that curve 5 the speed vectors 6 a cross section through the Profile of the velocity distribution of the resulting total flow represents in this area.
  • Fig.3 illustrates that a gradation of the exit speeds on the outlet channels 4 instead of through one stepped length also by a stepped diameter or a graduated transverse dimension of the outlet channels 4 reached can be. It also goes without saying that through the Fig. 2 and 3 illustrated measures combined with each other could be.
  • Figures 2 and 3 give the flow change only in the direction of the cross-sectional view again.
  • 1 and 6 illustrate examples in addition to this for graded changes in the direction of the X and Y axis Coordinate system, so that a bubble-shaped bulge of the airfoil with flattening to the outside areas of the Outlet wall 3 is conceivable due to the representation is.
  • the annular sector-shaped section of an outlet wall shown in FIG 3 illustrates an embodiment of an inventive one Device in which in an inner annular Area of outlet ducts 4 with a larger flow cross-section and in an outer annular area Outlet channels 4 with a smaller flow cross-section are provided.
  • the outlet wall 3 is behind 7 concentrically on its inside along the section line 10 or bowl-shaped, so that the outlet channels 4 of the middle area not only because of its larger size Cross section but also because of their lower Length have a lower flow resistance and consequently the outflow amount in the middle area is considerable is larger and gradually decreases towards the outside and inside. On This effectively prevents the peripheral Secondary air outflow is induced.
  • a negative pressure which is a return flow of supply air and consequently its circulation causes.
  • the outlet channels according to FIG. 7 consist, for example, of a layered, corrugated material 11 with in between arranged, flat, membrane-like thin walls 12, so that the cross-sectional shape of each of the numerous outlet channels 4 is approximately triangular or trapezoidal.
  • the shape of the Outlet channels 4 is thus essentially due to the manufacturing technique determined using the technique of material deformation forms numerous possibilities.
  • the outlet channels should 4 in honeycomb style only through a thin wall from each other be separated so that the total available Opening cross section for a certain size of the outlet wall 3 is as large as possible.
  • a device according to the invention Device in easily accessible areas to attach a protective grille 13 in front of the outlet wall 3, such as it indicates the Fig.4.
  • a protective grille can be one Form part of the device.
  • the fins of the protective grille are flowed around without flow separation, so that through them the flow pattern arising on the device is not significant being affected.
  • FIGS. 8 to 12 show exemplary embodiments according to the invention Devices in which a pre-distribution of the from the Exhaust channels 4 outflowing amount of air during the inflow the outlet wall 3 through inner baffle walls or guide elements 14 to 24 takes place, so that in the absence of gradation of permeability the outlet channels 4, i.e. at their constant opening cross-section this just generating a profiled or non-uniform and low-turbulence overall flow serve at the outlet from the outlet wall 3.
  • the outlet channels 3 by different Length and / or opening width to a desired one Type of flow profile of the resulting total flow contribute.
  • FIG. 8 In the embodiment of Figure 8 are two baffles and guide flaps 14.15 symmetrical to the axis of a rail-shaped Supply air duct 25 arranged and around a perpendicular to the flow direction extending axis 27.28 pivotable.
  • the one in the bottom Part of the illustration shown flow profile illustrated the influence of the swivel position of this jam and Guide flaps 14, 15 on the shape of the airfoil.
  • FIG. 9 can relate both to one, similar to the embodiment of Figure 8, rail-shaped Device as well as a mushroom-shaped device Respectively.
  • the outlet channels 4 have a conical shape there shape widening in the direction of flow. A pre-distribution of the Air takes place by means of a diffuser 17, the angle of its spread is more than 5 °.
  • perforated Storage wall 26 centrally and at a distance from the inside the outlet wall 3 arranged.
  • FIG. 11 and 12 are for the Air distribution to the outlet wall 3 at a distance in front of this perforated baffles 21 to 23 and 24 are provided. These can according to Fig. 11 staggered in a row be arranged and have major interruptions 32.
  • Fig. 12 shows an embodiment in which the middle area the perforated storage wall 24 by a larger number of perforation holes 33 is more permeable, so that a Larger proportion of those flowing through the housing channel 2 Air is supplied to the central area of the outlet wall 3 and the outflow from the device with one through the line 34 indicated flow profile takes place.
  • FIGS. 10 and 12 can also be used instead on a circular cylindrical device also on a linear outlet run executed device so that they for Generation of an air curtain, e.g. in order to be accessible Cooling shelves of sales systems a thermal demarcation to accomplish. Because a mixture with ambient air is low is effective, even with a smaller air throughput Air curtain.
  • FIG. 11 also shows schematically a particularly simple design Device in which the outlet wall 3 from usual honeycomb material, i.e. with equal and parallel to each other extending outlet channels 4 is composed.
  • the outflow directions are graduated so that the total flow specifically has an uneven profile, similar to that due to the design according to Fig. 7.
  • a control member 37 of this device 36 causes the supply air to be switched periodically to one of several connected to the common inflow channel 38 or 39 Devices 1.
  • the timing of these reversals can be tailored to suit individual needs the person residing in it and others Room loads can be adjusted.
  • Fig. 16 shows an embodiment of a circular according to the invention Device in which the outlet wall 3 a central, delimited by a peripheral wall 35 interior 36 with outlet channels parallel to one another and to the central axis 4, while that surrounding this area 36 Outside area 37 outlet channels 4 with one outward directional change, so that the Air flow in the exhaust ducts from one to the central axis the outlet wall 3 parallel to an outward direction direction is diverted.
  • Fig. 17 shows an enlarged partial cross section of an outside area 37, in the illustration of various Embodiments of outlet channels 3 with change of direction schematically several individual examples combined in one presentation have been.
  • a concrete version would be in the outside area 37 only one embodiment of outlet channels 3 in compact arrangement provided side by side.
  • An arcuate Change in direction of the outlet channels 4 is fluidic preferable, however, for simpler manufacturing reasons angled outlet channels 4 can also be provided.
  • the outlet channels in the outer area 37 can also straight, e.g. with gradual cross-sectional expansion run obliquely outwards, the directional angle being different Outlet channels 4 also change outwards differently can be.
  • Fig. 18 shows a sector-shaped detail an outlet wall 3 recognize that the cross-sectional shape of outlet channels arranged in annular groups can be different, determined by manufacturing techniques and to achieve special aesthetic effects, such as they can be particularly advantageous for such devices can.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Duct Arrangements (AREA)
  • Air-Flow Control Members (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Jet Pumps And Other Pumps (AREA)

Abstract

The injector has several of outlet channels (4) in the leading wall (3) of a housing (2). These give a low turbulence air flow. The channels have a greater length than the dimensions of their cross section. The flow profile (5,6) of the total flow from the openings allows differing permeability and or loading at the outlet wall (3) of the housing.

Description

Die Erfindung betrifft eine Vorrichtung für die Einführung von Luft in einen zu belüftenden oder zu klimatisierenden Raum, mit einer Auslasswand eines Vorrichtungsgehäuses, die aus wabenartig dicht nebeneinander angeordneten, dünnwandigen Auslasskanälen besteht, indem die Länge der dünnwandigen Auslasskanäle grösser ist als ihre grösste Querabmessung, wobei die Auslasskanten der dünnwandigen Auslasskanäle gemeinsam die äussere Grenzfläche der Auslasswand bilden. Eine solche Anordnung ist aus der DE-A-26 08 792 bekannt.The invention relates to a device for the introduction of Air in a room to be ventilated or air-conditioned, with an outlet wall of a device housing made from honeycomb tight side-by-side, thin-walled outlet channels consists of the length of the thin-walled outlet channels is larger than its largest transverse dimension, with the outlet edges the thin-walled outlet channels together the outer Form the interface of the outlet wall. Such an arrangement is known from DE-A-26 08 792.

Vorrichtungen der genannten Art haben den Vorteil, dass die Luftausströmung aus der Auslasswand mit sich nur wenig über die Austrittsfläche änderndem Geschwindigkeitsgradienten erfolgt, so dass die Luft kolbenartig in den Raum eindringt.Devices of the type mentioned have the advantage that the Air flow from the outlet wall with only a little over the exit surface changing speed gradient occurs, so that the air enters the room like a piston.

Die sonst üblichen Mischluftsysteme mit Raumluftinduktion bewirken hingegen eine hohe Luftumwälzung mit Zugerscheinungen und Verschmutzungen an den den Luftauslass umgebenden Raumwänden.The usual mixed air systems with room air induction cause on the other hand, a high level of air circulation with drafts and dirt on the room walls surrounding the air outlet.

Eine durch die EP-A-0 563 509 bekannte Vorrichtung ist für die Ausströmung im Bodenbereich eines zu belüftenden Raumes ausgeführt. Sie hat hierfür eine seitlich an ihrem Vorrichtungsgehäuse vorgesehene Auslasswand, die durch ein zwischen zwei Lochblechen angeordnetes Wabengitter derart gebildet ist, dass jeder Auslasskanal bzw. jede Wabe an seinem inneren und äusseren Ende durch ein Loch des angrenzenden Lochbleches begrenzt ist und der Lochquerschnitt kleiner ist als der Querschnitt des jeweiligen Auslasskanals. Um den Einfluss der Schwerkraft der kälteren Luft zu kompensieren, haben die Auslasskanäle bzw. Waben einen entsprechend schräg nach oben gerichteten Verlauf. Das sich durch eine solche Vorrichtung ergebende Profil der Gesamtströmung ist bei vorgegebener Menge der Gesamtströmung mit bestimmter Untertemperatur allein durch die Formgebung der sich in den zu belüftenden Raum hineinerstreckenden Auslasswand und die einheitliche Ausrichtung ihrer zahlreichen Auslasskanäle bestimmt. Für ein ausreichend in dem Raum sich verteilendes Strömungsprofil wurde es für erforderlich angesehen, die Vorrichtung entsprechend in den Raum hineinragen zu lassen.A device known from EP-A-0 563 509 is for the outflow in the floor area of a room to be ventilated. She has one for this outlet wall provided on the side of the device housing, through a honeycomb grid arranged between two perforated plates is formed such that each outlet channel or honeycomb at its inner and outer end through a hole in the adjacent Perforated sheet is limited and the perforated cross section is smaller than the cross section of the respective outlet duct. To compensate for the influence of the gravity of the colder air, the outlet channels or honeycombs have one accordingly diagonally upward course. That is through such Device resulting profile of the total flow is at predetermined amount of the total flow with a certain under-temperature solely by the shape of the ones to be ventilated Space extending into the outlet wall and the uniform Orientation of their numerous outlet channels determined. For a flow profile that is sufficiently distributed in the room it was considered necessary, the device accordingly to protrude into the room.

Für die Erzeugung einer induktionsarmen bzw. laminaren Belüftung ist es auch bekannt, die Ausströmungsgeschwindigkeit durch den Strömungswiderstand eines die Auslasswand bildenden feinmaschigen Gewebes stark zu reduzieren und dadurch gleichmässig zu verteilen. Eine solche Auslasswand kann jedoch nur senkrecht zu ihrer Auslassfläche ausblasen. Ausserdem kann es nachteilig sein, dass das feinmaschige Gewebe als Luftfilter wirkt und somit nach einiger Zeit gereinigt werden muss.For the generation of low-induction or laminar ventilation it is also known the outflow rate by the flow resistance of one forming the outlet wall to reduce fine-meshed fabric strongly and therefore evenly to distribute. However, such an outlet wall can only Blow out perpendicular to their outlet surface. It can also be disadvantageous that the fine-mesh fabric as an air filter works and must therefore be cleaned after some time.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung der genannten Art zu finden, die eine optimal den jeweiligen räumlichen Gegebenheiten anpassbare Einführung von Luft in einen Raum ermöglicht, so dass ein für die Belüftung besonders vorteilhaftes Strömungsprofil erzielbar ist, ohne dass die äussere Formgebung der Vorrichtung und ihrer Auslasswand durch diese Aufgabenstellung bestimmt sein muss.The invention has for its object a device mentioned type to find the one that best suits the respective spatial Adaptable introduction of air into one Space allows, so that a particularly advantageous for ventilation Flow profile can be achieved without the outer Shape of the device and its outlet wall by this The task must be determined.

Die Lösung dieser Aufgabe erfolgt erfindungsgemäss durch die Merkmale des Anspruchs 1.According to the invention, this object is achieved by the features of claim 1.

In bevorzugter Ausführungsform der Erfindung wird eine unterschiedliche Durchströmungsmenge in den zahlreichen Auslasskanälen dadurch bestimmt, dass die Auslasskanäle in ihrer Länge und/oder ihrer Querschnittsgrösse abgestuft gestaltet sind.In a preferred embodiment of the invention, a different Flow rate in the numerous outlet channels determined by the length of the exhaust ducts and / or their cross-sectional size are graduated.

Bei einer weiteren bevorzugten Ausführungsform der Erfindung hat mindestens ein Teil der Auslasskanäle an der eben oder gekrümmt ausgeführten Auslassfläche der Auslasswand eine andere Richtung.In a further preferred embodiment of the invention has at least a part of the outlet channels on the flat or curved executed outlet surface of the outlet wall another Direction.

Weitere vorteilhafte Ausgestaltungen einer erfindungsgemässen Vorrichtung sind Gegenstand von abhängigen Patentansprüchen und der folgenden Beschreibung anhand der Zeichnungen zu entnehmen. Es zeigt:

Fig.1
eine perspektivische, schematische Darstellung eines Bereiches der Aussenfläche der Auslasswand einer erfindungsgemässen Vorrichtung, mit Vektordarstellung von Luftgeschwindigkeiten zur Veranschaulichung eines Strömungsprofils ,
Fig.2
eine schematische Darstellung eines Vertikalschnittes durch einen Bereich einer Auslasswand, mit Vektordarstellung von Luftgeschwindigkeiten,
Fig.3
eine schematische Darstellung eines Vertikalschnittes durch eine Auslasswand, mit Vektordarstellung von Luftgeschwindigkeiten,
Fig.4
eine Vorderansicht einer durch ein Gitter geschützen erfindungsgemässen Vorrichtung,
Fig.5
eine perspektivische Ansicht gegen die Vorderseite der Auslasswand einer erfindungsgemässen Vorrichtung,
Fig.6
einen Ausschnitt aus einer Auslasswand in perspektivischer Darstellung,
Fig.7
eine perspektivische Ansicht eines sektorförmigen Ausschnittes der Auslasswand einer weiteren Ausführungsform einer erfindungsgemässen Vorrichtung,
Fig.7A
eine vergrösserte Querschnittdarstellung im Bereich VII der Fig.7 der Aussenkante eines Auslasskanals,
Fig.8
einen Querschnitt durch einen Bereich einer schienenförmigen erfindungsgemässen Vorrichtung in perspektivischer, schematischer Darstellung,
Fig.9
eine weitere Ausführungsform einer erfindungsgemässen Vorrichtung im Vertikalquerschnitt, deren Auslasswand konische Röhrchen aufweist,
FIG.9A
eine Ansicht auf einen Ausschnitt die Aussenfläche der Auslasswand nach Fig.9
Fig.10
eine weitere Ausführungsform einer erfindungsgemässen Vorrichtung im Vertikalquerschnitt,
Fig.11
einen Querschnitt durch eine weitere Ausführungsform einer erfindungsgemässen Vorrichtung,
Fig.12
einen Querschnitt durch eine weitere Ausführungsform einer erfindungsgemässen Vorrichtung,
Fig.13
eine schematische Darstellung von periodisch entstehenden Strömungsprofilen von Vorrichtungen nach Fig.14 oder Fig.15,
Fig.14
eine schematische Darstellung für eine wechselnde Luftzufuhr zu erfindungsgemässen Vorrichtungen,
Fig.15
eine schematische Darstellung einer weiteren Ausführungsform für eine wechselnde Luftzufuhr zu erfindungsgemässen Vorrichtungen,
Fig.16
einen Querschnitt durch eine weitere Ausführungsform einer erfindungsgemässen Vorrichtung,
Fig.17
einen Teilquerschnitt durch eine erfindungsgemässe Vorrichtung mit einer schematischen Darstellung mehrerer Beispiele von Verlaufsformen von Auslasskanälen und
Fig.18
eine sektorförmige Teilansicht auf die Auslasswand einer Ausführungsform einer erfindungsgemässen Vorrichtung.
Further advantageous embodiments of a device according to the invention are the subject of dependent claims and the following description can be found with reference to the drawings. It shows:
Fig. 1
1 shows a perspective, schematic representation of a region of the outer surface of the outlet wall of a device according to the invention, with a vector representation of air velocities to illustrate a flow profile,
Fig. 2
1 shows a schematic representation of a vertical section through a region of an outlet wall, with vector representation of air velocities,
Fig. 3
1 shows a schematic representation of a vertical section through an outlet wall, with vector representation of air velocities,
Fig. 4
2 shows a front view of a device according to the invention protected by a grid,
Fig. 5
2 shows a perspective view against the front of the outlet wall of a device according to the invention,
Fig. 6
a section of an outlet wall in perspective,
Fig. 7
2 shows a perspective view of a sector-shaped section of the outlet wall of a further embodiment of a device according to the invention,
Fig.7A
FIG. 7 shows an enlarged cross-sectional representation in area VII of FIG. 7 of the outer edge of an outlet duct,
Fig. 8
3 shows a cross section through a region of a rail-shaped device according to the invention in a perspective, schematic illustration,
Fig. 9
a further embodiment of a device according to the invention in vertical cross section, the outlet wall of which has conical tubes,
FIG.9A
a view of a section of the outer surface of the outlet wall of Figure 9
Fig. 10
another embodiment of a device according to the invention in vertical cross section,
Fig. 11
3 shows a cross section through a further embodiment of a device according to the invention,
Fig. 12
3 shows a cross section through a further embodiment of a device according to the invention,
Fig. 13
1 shows a schematic representation of periodically occurring flow profiles of devices according to FIG. 14 or FIG. 15,
Fig. 14
1 shows a schematic illustration for a changing air supply to devices according to the invention,
Fig. 15
1 shows a schematic representation of a further embodiment for a changing air supply to devices according to the invention,
Fig. 16
3 shows a cross section through a further embodiment of a device according to the invention,
Fig. 17
a partial cross section through an inventive device with a schematic representation of several examples of course shapes of outlet channels and
Fig. 18
a sector-shaped partial view of the outlet wall of an embodiment of an inventive device.

Eine erfindungsgemässe Vorrichtung 1 hat ein Gehäuse 2, das mit einem nichtdargestellten Anschluss für die Verbindung mit dem Zuluftkanal einer Belüftungsanlage oder eines Klimagerätes sowie mit einer Auslasswand 3 zur Einleitung von Luft in einen zu belüftenden bzw. zu klimatisierenden Raum versehen ist. Dieses Gehäuse 2 ist zum Einsetzen z.B. hinter die Deckenverkleidung eines zu belüftenden Raumes vorgesehen, so dass die Auslasswand 3 eine Begrenzung des zu klimatisierenden Raumes bildet, die beispielsweise bündig in die angrenzende Raumwand übergeht.A device 1 according to the invention has a housing 2 which with a connection, not shown, for connection to the supply air duct of a ventilation system or an air conditioner and with an outlet wall 3 for introducing air into one room to be ventilated or air-conditioned. This housing 2 is for insertion e.g. behind the ceiling panel of a room to be ventilated, so that the Outlet wall 3 a limitation of the room to be air-conditioned forms, for example, flush with the adjacent room wall transforms.

Damit die Luft nicht strahlartig in den Raum einströmt und dort zu starken Verwirbelungen mit Induktion von verunreinigter, erwärmter Raumluft führt, wird sie an der Auslasswand 3 aufgestaut und auf zahlreiche, im Durchmesser verhältnismässig kleine, wabenartig zueinander angeordnete Auslasskanäle 4 verteilt, in denen sie laminar oder turbulenzarm ausgerichtet wird. Die Stauwirkung und damit gezielte Mengenverteilung auf den Austrittsquerschnitt der Auslasswand 3 ergibt sich durch den Luftwiderstand beim Durchströmen der Auslasskanäle. Sie kann jedoch auch durch Einbauten beeinflusst werden, wie durch die Ausführungsbeispiele der Fig.8 bis 12 gezeigt ist, um bestimmte Formen des sich beim Ausströmen ergebenden Geschwindigkeitsprofils der Gesamtströmung zu erzielen oder zu verstärken.So that the air does not flow into the room like a jet there too strong eddies with induction of contaminated, heated indoor air, it is on the outlet wall 3 dammed up and numerous, proportionately in diameter small, honeycomb-like outlet channels 4 distributed, in which they are laminar or low-turbulence aligned becomes. The congestion effect and thus targeted quantity distribution the outlet cross section of the outlet wall 3 results from the air resistance when flowing through the outlet channels. she can also be influenced by internals, such as The embodiments of Figures 8 through 12 are shown to be specific Forms of the velocity profile resulting from the outflow to achieve or strengthen the overall flow.

Die Beeinflussung des Profils der Gesamtströmung, die sich beim Durchströmen der dünnen bzw. länglichen Auslasskanäle 4 ergibt, wird durch die Darstellungen der Fig.2 und 3 im Zusammenhang mit der Darstellung der Fig.1 deutlich. Influencing the profile of the overall flow, which is when flowing through the thin or elongated outlet channels 4 results, is related by the representations of Figures 2 and 3 with the representation of Fig.1 clearly.

Fig.2 zeigt am Beispiel eines Bereiches einer eine ungleichförmige. Dicke aufweisenden Auslasswand 3, die sich durch eine entsprechend abgestufte Länge der Auslasskanäle 4 ergebende unterschiedliche Ausströmgeschwindigkeit, so dass die Kurve 5 der Geschwindigkeitsvektoren 6 einen Querschnitt durch das Profil der Geschwindigkeitsverteilung der resultierenden Gesamtströmung in diesem Bereich darstellt.Fig. 2 shows a non-uniform example of an area. Thick outlet wall 3, which is characterized by a correspondingly graded length of the outlet channels 4 resulting different outflow velocity, so that curve 5 the speed vectors 6 a cross section through the Profile of the velocity distribution of the resulting total flow represents in this area.

Fig.3 veranschaulicht, dass eine Abstufung der Austrittsgeschwindigkeiten an den Auslasskanälen 4 anstatt durch eine abgestufte Länge auch durch einen abgestuften Durchmesser bzw. eine abgestufte Querabmessung der Auslasskanäle 4 erreicht werden kann. Es versteht sich ausserdem, dass die durch die Fig.2 und 3 veranschaulichten Massnahmen auch miteinander kombiniert sein können.Fig.3 illustrates that a gradation of the exit speeds on the outlet channels 4 instead of through one stepped length also by a stepped diameter or a graduated transverse dimension of the outlet channels 4 reached can be. It also goes without saying that through the Fig. 2 and 3 illustrated measures combined with each other could be.

Die Darstellungen der Fig.2 und 3 geben die Strömungsveränderung nur in der Richtung der Querschnittsdarstellung wieder. Die Fig.1 und 6 veranschaulichen in Ergänzung hierzu Beispiele für abgestufte Aenderungen in Richtung der X- und Y-Achse eines Koordinatensystems, so dass eine blasenförmige Auswölbung des Strömungsprofils mit Abflachung zu Aussenbereichen der Auslasswand 3 aufgrund der Darstellung räumlich vorstellbar ist.The representations of Figures 2 and 3 give the flow change only in the direction of the cross-sectional view again. 1 and 6 illustrate examples in addition to this for graded changes in the direction of the X and Y axis Coordinate system, so that a bubble-shaped bulge of the airfoil with flattening to the outside areas of the Outlet wall 3 is conceivable due to the representation is.

Falls eine pulsierende Ausströmung entsprechend den Ausführungsbeispielen nach Fig.14 und 15 erfolgt, so ergeben sich Raumluft verdrängende Primär- bzw. Zuluftblasen 7,8, wie die Darstellung der Fig.13 schematisch veranschaulicht. Durch die Abnahme der Abströmgeschwindigkeiten nach aussen wird die Mitnahme von Sekundärluft durch Induktion vermieden. Ein entsprechendes Strömungsprofil ist auch im unteren Teil der Fig.10 und 12 gezeigt.If a pulsating outflow according to the exemplary embodiments 14 and 15 takes place, so result Primary or supply air bubbles 7,8 displacing room air, such as the Diagram of Fig. 13 schematically illustrated. Through the Decrease in outflow speeds becomes entrainment of secondary air avoided by induction. A corresponding one Flow profile is also in the lower part of Fig.10 and 12 shown.

Der in Fig.7 gezeigte ringsektorförmige Ausschnitt einer Auslasswand 3 veranschaulicht ein Ausführungsbeispiel einer erfindungsgemässen Vorrichtung, bei dem in einem inneren kreisringförmigen Bereich Auslasskanäle 4 mit grösserem Durchströmungsquerschnitt und in einem äusseren kreisringförmigen Bereich Auslasskanäle 4 mit einem kleineren Durchströmungsquerschnitt vorgesehen sind. Ausserdem ist die Auslasswand 3 nach Fig.7 an ihrer Innenseite entlang der Schnittslinie 10 konzentrisch bzw. schüsselförmig ausgewölbt, so dass die Auslasskanäle 4 des mittleren Bereichs nicht nur aufgrund ihres grösseren Querschnittes sondern auch aufgrund ihrer geringeren Länge einen geringeren Durchströmungswiderstand aufweisen und folglich die Ausströmmenge im mittleren Bereich erheblich grösser ist und nach aussen und innen allmählich abnimmt. Auf diese Weise wird wirksam verhindert, dass durch die periphere Ausströmung Sekundärluft induziert wird. Im zentralen Bereich einer solchen Vorrichtung nach Fig.7 entsteht ein Unterdruck, der eine Rückströmung von Zuluft und folglich ihre Zirkulation bewirkt.The annular sector-shaped section of an outlet wall shown in FIG 3 illustrates an embodiment of an inventive one Device in which in an inner annular Area of outlet ducts 4 with a larger flow cross-section and in an outer annular area Outlet channels 4 with a smaller flow cross-section are provided. In addition, the outlet wall 3 is behind 7 concentrically on its inside along the section line 10 or bowl-shaped, so that the outlet channels 4 of the middle area not only because of its larger size Cross section but also because of their lower Length have a lower flow resistance and consequently the outflow amount in the middle area is considerable is larger and gradually decreases towards the outside and inside. On This effectively prevents the peripheral Secondary air outflow is induced. In the central area such a device according to FIG. 7 creates a negative pressure, which is a return flow of supply air and consequently its circulation causes.

Die Auslasskanäle nach Fig.7 bestehen beispielsweise aus einem schichtweise angeordneten, gewellten Material 11 mit dazwischen angeordneten, ebenen, membranartig dünnen Wänden 12, so dass die Querschnittsform jedes der zahlreichen Auslasskanäle 4 angenähert dreieckförmig oder trapezförmig ist. Die Form der Auslasskanäle 4 ist somit im wesentlichen durch die Herstellungstechnik bestimmt, wobei die Technik der Materialverformung zahlreiche Möglichkeiten bildet. Dabei sollen die Auslasskanäle 4 in Wabenart nur durch eine dünne Wand voneinander getrennt sein, so dass der insgesamt zur Verfügung stehende Oeffnungsquerschnitt für eine bestimmte Grösse der Auslasswand 3 möglichst gross ist.The outlet channels according to FIG. 7 consist, for example, of a layered, corrugated material 11 with in between arranged, flat, membrane-like thin walls 12, so that the cross-sectional shape of each of the numerous outlet channels 4 is approximately triangular or trapezoidal. The shape of the Outlet channels 4 is thus essentially due to the manufacturing technique determined using the technique of material deformation forms numerous possibilities. The outlet channels should 4 in honeycomb style only through a thin wall from each other be separated so that the total available Opening cross section for a certain size of the outlet wall 3 is as large as possible.

Um eine Beschädigung der dünnen Wände 11,12 der Auslasskanäle 4 zu vermeiden, empfiehlt es sich für die Anordnung einer erfindungsgemässen Vorrichtung an leicht zugänglichen Bereichen vor der Auslasswand 3 ein Schutzgitter 13 zu befestigen, wie es die Fig.4 andeutet. Ein solches Schutzgitter kann dabei einen Teil der Vorrichtung bilden. Die Lamellen des Schutzgitters werden ohne Strömungsablösung umströmt, so dass durch sie das an der Vorrichtung entstehende Strömungsbild nicht erheblich beeinflusst wird. To damage the thin walls 11, 12 of the outlet channels 4, it is advisable for the arrangement of a device according to the invention Device in easily accessible areas to attach a protective grille 13 in front of the outlet wall 3, such as it indicates the Fig.4. Such a protective grille can be one Form part of the device. The fins of the protective grille are flowed around without flow separation, so that through them the flow pattern arising on the device is not significant being affected.

Zu Erhöhung der Widerstandsfähigkeit der die Auslasskante der Wand der Auslasskanäle (4) gegen Beschädigung und zur Verbesserung des ästhetischen Erscheinungsbildes haben dise vorzugsweise einen im Querschnitt tropfenförmigen, nach aussen abgerundeten Wulst 16, wie die vergrösserte Querschnittsdarstellung der Fig.7A zeigt. Die Herstellung solcher Abrundung der Auslasskante kann durch Eintauchen in eine Flüssigkeit, z.B. Kunstharz erfolgen. Die Tropfenform ergibt sich beim Herausheben aus der Flüssigkeit und deren anschliessende Aushärtung.To increase the resistance of the outlet edge of the Wall of the outlet channels (4) against damage and for improvement of aesthetic appearance have preferred this one drop-shaped in cross-section, rounded to the outside Bead 16, like the enlarged cross-sectional view 7A shows. The manufacture of such rounding off The outlet edge can be immersed in a liquid, e.g. Synthetic resin. The drop shape results when you lift it out from the liquid and its subsequent hardening.

Die Fig.8 bis 12 zeigen Ausführungsbeispiele erfindungsgemässer Vorrichtungen, bei denen eine Vorverteilung der aus den Auslasskanälen 4 ausströmenden Luftmenge bei der Zuströmung zu der Auslasswand 3 durch innere Stauwände oder Leitelemente 14 bis 24 erfolgt, so dass bei fehlender Abstufung der Durchlässigkeit der Auslasskanäle 4, d.h. bei deren konstanten Oeffnungsquerschnitt diese nur der Erzeugung einer profilierten bzw. ungleichförmigen und dabei turbulenzarmen Gesamtströmung am Austritt aus der Auslasswand 3 dienen. Jedoch können auch bei diesen Ausführungsbeispielen die Auslasskanäle 3 durch unterschiedliche Länge und/oder Oeffnungsweite zu einer gewünschten Art des Strömungsprofiles der resultierenden Gesamtströmung beitragen.8 to 12 show exemplary embodiments according to the invention Devices in which a pre-distribution of the from the Exhaust channels 4 outflowing amount of air during the inflow the outlet wall 3 through inner baffle walls or guide elements 14 to 24 takes place, so that in the absence of gradation of permeability the outlet channels 4, i.e. at their constant opening cross-section this just generating a profiled or non-uniform and low-turbulence overall flow serve at the outlet from the outlet wall 3. However, too in these embodiments, the outlet channels 3 by different Length and / or opening width to a desired one Type of flow profile of the resulting total flow contribute.

Beim Ausführungsbeispiel der Fig.8 sind zwei Stau- und Leitklappen 14,15 symmetrisch zur Achse eines schienenförmigen Zuluftkanals 25 angeordneten und um eine senkrecht zur Strömungsrichtung verlaufende Achse 27,28 schwenkbar. Das im unteren Teil der Darstellung gezeigte Strömungsprofil veranschaulicht den Einfluss der Schwenkposition dieser Stau- und Leitklappen 14,15 auf die Form des Strömungsprofils.In the embodiment of Figure 8 are two baffles and guide flaps 14.15 symmetrical to the axis of a rail-shaped Supply air duct 25 arranged and around a perpendicular to the flow direction extending axis 27.28 pivotable. The one in the bottom Part of the illustration shown flow profile illustrated the influence of the swivel position of this jam and Guide flaps 14, 15 on the shape of the airfoil.

Die Querschnittsdarstellung der Fig.9 kann sich sowohl auf eine, ähnlich dem Ausführungsbeispiel nach Fig.8, schienenförmige Vorrichtung als auch auf eine pilzförmige Vorrichtung beziehen. Die Auslasskanäle 4 haben dort eine konische, sich in Strömungsrichtung erweiternde Form. Eine Vorverteilung der Luft erfolgt mittels eines Diffusors 17, dessen Ausbreitungswinkel mehr als 5° beträgt. Ausserdem ist zur Luftvorverteilung eine zum Teil umströmte und zum Teil durchströmte, durchlöcherte Stauwand 26 zentral und mit Abstand vor Innenseite der Auslasswand 3 angeordnet.The cross-sectional representation of FIG. 9 can relate both to one, similar to the embodiment of Figure 8, rail-shaped Device as well as a mushroom-shaped device Respectively. The outlet channels 4 have a conical shape there shape widening in the direction of flow. A pre-distribution of the Air takes place by means of a diffuser 17, the angle of its spread is more than 5 °. In addition to air distribution one with a flow around and a flow through, perforated Storage wall 26 centrally and at a distance from the inside the outlet wall 3 arranged.

Die Fig.10 zeigt ein Ausführungsbeispiel mit einer ringförmigen, in einem zylindrischen Gehäuse 2 angeordneten Düse 18, 19,20, so dass die Beaufschlagung der Auslasswand 3 mit einer Geschwindikeitsverteilung erfolgt, wie sie durch die Profillinie 30 angedeutet ist. Der Unterschied zwischen den Profillinien 30,31 vor und hinter der Auslasswand 3 veranschaulicht die gleichrichtende, bzw. turbulenzmindernde Wirkung der Auslasswand 3.10 shows an embodiment with an annular, nozzle 18 arranged in a cylindrical housing 2, 19.20, so that the outlet wall 3 is loaded with a Velocity distribution occurs as it does through the profile line 30 is indicated. The difference between the profile lines 30, 31 in front of and behind the outlet wall 3 the rectifying or turbulence reducing effect of the outlet wall 3rd

Bei den Ausführungsbeispielen nach Fig.11 und 12 sind für die Luftverteilung zu der Auslasswand 3 mit Abstand vor dieser perforierte Stauwände 21 bis 23 bzw. 24 vorgesehen. Diese können entsprechend Fig.11 zu mehreren gestaffelt hintereinander angeordnet sein und grössere Unterbrechungen 32 aufweisen. Fig.12 zeigt ein Ausführungsbeispiel, bei dem der mittlere Bereich der perforierten Stauwand 24 durch eine grössere Anzahl von Perforierungslöchern 33 durchlässiger ist, so dass ein grösserer Anteil der durch den Gehäusekanal 2 zuströmenden Luft dem mittleren Bereich der Auslasswand 3 zugeführt wird und die Abströmung aus der Vorrichtung mit einem durch die Linie 34 angedeuteten Strömungsprofil erfolgt.11 and 12 are for the Air distribution to the outlet wall 3 at a distance in front of this perforated baffles 21 to 23 and 24 are provided. these can according to Fig. 11 staggered in a row be arranged and have major interruptions 32. Fig. 12 shows an embodiment in which the middle area the perforated storage wall 24 by a larger number of perforation holes 33 is more permeable, so that a Larger proportion of those flowing through the housing channel 2 Air is supplied to the central area of the outlet wall 3 and the outflow from the device with one through the line 34 indicated flow profile takes place.

Die Darstellungen der Fig.10 und 12 können sich auch anstatt auf eine kreiszylindrische Vorrichtung auch auf eine als Linearauslass ausgeführte Vorrichtung beziehen, so dass sie zur Erzeugung eines Luftschleiers dient, z.B. um in offen zugänglichen Kühlregalen von Verkaufsanlagen eine thermische Abgrenzung zu schaffen. Da eine Mischung mit Umgebungsluft gering ist, ergibt sich auch bei kleinerem Luftdurchsatz ein wirksamer Luftschleier.The representations of FIGS. 10 and 12 can also be used instead on a circular cylindrical device also on a linear outlet run executed device so that they for Generation of an air curtain, e.g. in order to be accessible Cooling shelves of sales systems a thermal demarcation to accomplish. Because a mixture with ambient air is low is effective, even with a smaller air throughput Air curtain.

Fig.11 zeigt weiterhin schematisch eine besonders einfach ausgeführte Vorrichtung, bei der die Auslasswand 3 aus üblich ausgeführtem Wabenmaterial, d.h. mit gleichen und parallel zueinander verlaufenden Auslasskanälen 4 zusammengesetzt ist. Aufgrund der modularen Bauweise der Auslasswand 3 sind jedoch die Ausströmrichtungen abgestuft, so dass die Gesamtströmung gezielt ein ungleichmässiges Profil hat, ähnlich wie dasjenige aufgrund der Ausführung nach Fig.7.11 also shows schematically a particularly simple design Device in which the outlet wall 3 from usual honeycomb material, i.e. with equal and parallel to each other extending outlet channels 4 is composed. However, due to the modular design of the outlet wall 3 the outflow directions are graduated so that the total flow specifically has an uneven profile, similar to that due to the design according to Fig. 7.

Fig.14 und 15 zeigen je eine Gruppierung von mehreren erfindungsgemässen Vorrichtungen 1, die mit einer gemeinsamen Einrichtung 35 bzw. 36 zur Erzeugung einer pulsierenden Zuströmung verbunden sind. Ein Steuerorgan 37 dieser Einrichtung 36 bewirkt die periodische Umsteuerung der Zuluft zu einer von mehreren an den gemeinsamen Zuströmkanal 38 bzw. 39 angeschlossenen Vorrichtungen 1. Die Zeitfolge dieser Umsteuerungen kann durch eine geeignete Steuerung individuellen Bedürfnissen der sich in ihm aufhaltende Personen sowie anderen Raumbelastungen angepasst werden.14 and 15 each show a grouping of several according to the invention Devices 1 with a common device 35 or 36 for generating a pulsating inflow are connected. A control member 37 of this device 36 causes the supply air to be switched periodically to one of several connected to the common inflow channel 38 or 39 Devices 1. The timing of these reversals can be tailored to suit individual needs the person residing in it and others Room loads can be adjusted.

Fig.16 zeigt ein Ausführungsbeispiel einer kreisförmigen erfindungsgemässen Vorrichtung bei der die Auslasswand 3 einen zentralen, durch eine umlaufende Wand 35 abgegrenzten Innenbereich 36 mit zueinander und zur Mittelachse parallelen Auslasskanälen 4 aufweist, während der diesen Bereich 36 umschliessende Aussenbereich 37 Auslasskanäle 4 mit einer auswärts gerichteten Richtungsänderung aufweist, so dass die Luftströmung in den Auslasskanälen von einer zur Mittelachse der Auslasswand 3 parallelen Richtung zu einer nach aussen verlaufenden Richtung umgelenkt wird.Fig. 16 shows an embodiment of a circular according to the invention Device in which the outlet wall 3 a central, delimited by a peripheral wall 35 interior 36 with outlet channels parallel to one another and to the central axis 4, while that surrounding this area 36 Outside area 37 outlet channels 4 with one outward directional change, so that the Air flow in the exhaust ducts from one to the central axis the outlet wall 3 parallel to an outward direction direction is diverted.

Fig.17 zeigt in vergrössertem Teilquerschnitt einen Aussenbereich 37, in dem zur Veranschaulichung von verschiedenen Ausführungsformen von Auslasskanälen 3 mit Richtungsänderung schematisch mehrer Einzelbeispiele in einer Darstellung vereinigt worden sind. In konkreter Ausführung wäre in dem Aussenbereich 37 nur eine Ausführungsform von Auslasskanälen 3 in kompakter Anordnung nebeneinander vorgesehen. Eine bogenförmige Richtungsänderung der Auslasskanäle 4 ist strömungstechnisch vorzuziehen, jedoch können aus Gründen einfacherer Herstellung auch abgewinkelte Auslasskanäle 4 vorgesehen werden. Schliesslich können die Auslasskanäle im Aussenbereich 37 auch geradlinig, z.B. mit allmählicher Querschnittsserweiterung schräg nach aussen verlaufen, wobei der Richtungswinkel verschiedener Auslasskanäle 4 auch nach aussen sich ändernd unterschiedlich sein kann.Fig. 17 shows an enlarged partial cross section of an outside area 37, in the illustration of various Embodiments of outlet channels 3 with change of direction schematically several individual examples combined in one presentation have been. A concrete version would be in the outside area 37 only one embodiment of outlet channels 3 in compact arrangement provided side by side. An arcuate Change in direction of the outlet channels 4 is fluidic preferable, however, for simpler manufacturing reasons angled outlet channels 4 can also be provided. Finally, the outlet channels in the outer area 37 can also straight, e.g. with gradual cross-sectional expansion run obliquely outwards, the directional angle being different Outlet channels 4 also change outwards differently can be.

Die Fig.18 lässt an einer sektorförmigen Ausschnittsdarstellung einer Auslasswand 3 erkennen, dass auch die Querschnittform von in ringförmigen Gruppen angeordneten Auslasskanälen unterschiedlich sein kann, bestimmt durch Herstellungstechniken und zur Erzielung besonderer ästhetischer Wirkungen, wie sie für derartige Vorrichtungen besonders vorteilhaft sein können.Fig. 18 shows a sector-shaped detail an outlet wall 3 recognize that the cross-sectional shape of outlet channels arranged in annular groups can be different, determined by manufacturing techniques and to achieve special aesthetic effects, such as they can be particularly advantageous for such devices can.

Claims (13)

  1. Apparatus for the introduction of air into a room which is to be ventilated or air conditioned, comprising an outlet wall of an apparatus casing, composed of thin-walled outlet ducts, which are arranged honeycomblike closely together, so that the length of the thin-walled ducts is longer than its largest lateral dimension, whereby the outlet edges of the thin-walled outlet ducts jointly form the exterior boundary surface of the outlet wall, characterized in that the flow profile (5,6,7,31,34) of the total flow leaving the outlet is determined by measures for obtaining a different permeability and/or a different admission on the outlet wall (3), whereby the measures are such for obtaining an air resistance within the outlet ducts (4) and/or for providing air distribution devices (18-28) upstream of the outlet wall (3).
  2. Apparatus according to claim 1, characterized in that the outlet ducts are separated from one another in membran-like manner by thin walls (11,12).
  3. Apparatus according to claim 1 or 2, characterized in that a different flow quantity in the outlet ducts (4) of the outlet wall (3) is defined by a stepping of the length and/or cross-sectional size of the outlet ducts (4) thereof.
  4. Apparatus according to one of the claims 1 to 3, characterized in that the outlet ducts (4) of the outlet wall (3) terminate at a flat, cylindrical or multiply curved discharge surface.
  5. Apparatus according to one of the claims 1 to 4, characterized in that in the outlet wall (3) are provided groups of outlet ducts (4), which differ by a different direction.
  6. Apparatus according to one of the claims 1 to 4, characterized in that the permeabilty and/or admission on the outlet wall (3) decreases towards one or more of the edges thereof.
  7. Apparatus according to one of the claims 1 to 6, characterized in that at least one part of the outlet ducts (4) arranged peripherally in the outlet wall (3) has in the flow direction towards the edge of the outlet wall (3) a curved or a bent path.
  8. Apparatus according to one of the claims 1 to 7, characterized in that at least one group of outlet ducts (4) has an increasing cross-section in the flow direction.
  9. Apparatus according to one of the claims 1 to 8, characterized in that the outlet wall (3) is formed from several, juxtaposed honeycomb elements with a different orientation of their outlet ducts (4).
  10. Apparatus according to one of the claims 1 to 9, characterized in that the discharge edge of the wall of the outlet ducts (4) has a cross-sectionally drop-shaped, outwardly rounded bead.
  11. Apparatus according to one of the claims 1 to 10, characterized in that for a different flow quantity in the numerous discharge ducts (4) baffle and deflecting plates (14 to 24) are positioned behind the outlet wall (3).
  12. Apparatus according to one of the claims 1 to 10, characterized in that in the flow direction and spaced upstream of the outlet wall (3) is provided at least one perforated wall (2-23,24) with different permeability.
  13. Apparatus according to one of the claims 1 to 12, characterized in that it is connected to a device (35,36) for producing a pulsating inflow.
EP96810910A 1996-01-30 1996-12-30 Air outlet device Expired - Lifetime EP0787954B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH23596 1996-01-30
CH235/96 1996-01-30
CH23596 1996-01-30

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EP0787954A2 EP0787954A2 (en) 1997-08-06
EP0787954A3 EP0787954A3 (en) 1998-03-18
EP0787954B1 true EP0787954B1 (en) 2000-05-24

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EP96810910A Expired - Lifetime EP0787954B1 (en) 1996-01-30 1996-12-30 Air outlet device

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EP (1) EP0787954B1 (en)
AT (1) ATE193369T1 (en)
DE (1) DE59605301D1 (en)
ES (1) ES2152508T3 (en)
NO (1) NO310792B1 (en)

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Publication number Priority date Publication date Assignee Title
SE0302201D0 (en) 2003-08-13 2003-08-13 Airson Ab Air Supply Arrangement
SE0401746D0 (en) * 2004-07-05 2004-07-05 Camfil Ab In air filter unit

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2608792A1 (en) * 1976-03-03 1977-09-08 Josef Piederstorfer Multiple nozzle for producing radial air flow displacement - has honeycomb arrangement of conical nozzles in curved surface
IN152016B (en) * 1980-11-24 1983-09-24 Klenzaids Engineers Plc
DE4210279A1 (en) * 1992-03-28 1993-09-30 Turbon Tunzini Klimatechnik Displacement air outlet for ventilation and air conditioning systems

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ES2152508T3 (en) 2001-02-01
EP0787954A3 (en) 1998-03-18
EP0787954A2 (en) 1997-08-06
NO310792B1 (en) 2001-08-27
NO965577D0 (en) 1996-12-27
ATE193369T1 (en) 2000-06-15
NO965577L (en) 1997-07-31
DE59605301D1 (en) 2000-06-29

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