EP0239854B1 - Air outlet - Google Patents

Air outlet Download PDF

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Publication number
EP0239854B1
EP0239854B1 EP87103723A EP87103723A EP0239854B1 EP 0239854 B1 EP0239854 B1 EP 0239854B1 EP 87103723 A EP87103723 A EP 87103723A EP 87103723 A EP87103723 A EP 87103723A EP 0239854 B1 EP0239854 B1 EP 0239854B1
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EP
European Patent Office
Prior art keywords
air
air outlet
channel
flow
cross
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.)
Revoked
Application number
EP87103723A
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German (de)
French (fr)
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EP0239854A1 (en
Inventor
Max Rüegg
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Hesco Pilgersteg AG
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Hesco Pilgersteg AG
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Priority claimed from CH260/86A external-priority patent/CH668198A5/en
Application filed by Hesco Pilgersteg AG filed Critical Hesco Pilgersteg AG
Priority to AT87103723T priority Critical patent/ATE63633T1/en
Publication of EP0239854A1 publication Critical patent/EP0239854A1/en
Application granted granted Critical
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Classifications

    • 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
    • F24F13/072Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser of elongated shape, e.g. between ceiling panels

Definitions

  • the invention relates to an air outlet according to the preamble of patent claim 1.
  • An air outlet of this type is known, for example, from DE-A-2553196.
  • the design of the air guide element in the form of a roller with a slot-like, diametrically extending flow channel is characteristic.
  • a roller-shaped cross-flow air guide element with a plurality of slot-like air flow openings arranged one behind the other is also known from DE-A-16 79 564. Since the air guide element for its rotatable mounting is positively enclosed laterally between the walls of the slot-shaped outlet channel, the outflow direction of the air can only be changed within a correspondingly limited angular range by rotating the air guide element. With further rotation, the flow channel closes, since its outlet opening is then covered by the wall of the outlet channel.
  • air guiding elements mounted in the longitudinal direction one behind the other in the outlet channel must be set alternately in the opposite direction.
  • the sawtooth-like appearance that occurs in combination with continuous, flat cladding profiles is often perceived as a nuisance.
  • the limited swiveling range of the known air guiding elements, or the outlet flow and the alternating opposite outflow directions hinder the achievement of a Coanda effect, which is aimed in particular at low rooms, and a flow along the ceiling for improved distribution of cold air is not achieved.
  • the air outlet 1 has an outlet channel 2, the two side walls 3, 4 of which run parallel to one another at a relatively small distance, so that it is designed in the form of a slot or a gap.
  • Several spacer bolts 5 fix both channel side walls 3, 4 to one another.
  • the latter are produced as an extruded profile and, by means of an arcuate curvature 6, 7, together form a channel extension 8, which creates the transition to the air distribution chamber 9.
  • the channel side walls can merge in one piece into the chamber side wall or have an adjoining profile part 11, 12 in which a correspondingly shaped area 14, 15 of the sheet metal wall 16 engages in a form-fitting manner.
  • the air distribution chamber 9 has the shape of an elongated channel which is rectangular in cross section and runs parallel to the ceiling cladding profiles 33, 34 which are flat-c-shaped in cross section behind insulating plates 35 of the ceiling cladding.
  • a supply air duct with a circular cross section is connected via the connecting piece 39 inserted into the longitudinal wall 37.
  • a perforated plate 40 serving for air filtering is also inserted in these.
  • the entire arrangement which serves to supply air is suspended from the ceiling 41 by several of the threaded shafts 31 mentioned.
  • the distance between the strip-shaped or strip-shaped ceiling cladding profiles 33, 34 is small and is 17 mm in the case of conventional “panel” ceilings.
  • the greatest outer width is at the one another parallel channel side walls 3, 4, ie 15 mm in the area of engagement with the cladding profiles 33, 34, this greatest width in the outflow direction being formed in front of the air guide element or elements 44 by a bulge 45 of the outlet channel 2 which is advantageous in terms of flow technology.
  • This bulge 45 is followed in the flow direction by a bearing profile 46 provided for the rotatable mounting of the air guide element 44, each of which consists of a groove with an arcuate cross section, the radius of curvature of which corresponds to that of annular or circular guide areas 47 of the respective air guide element 44.
  • the bearing profile surrounds the air guiding element 44 with a low pretension, so that it is held in a self-locking manner, or rotation for a different outflow direction is only possible after overcoming a resistance.
  • the rotation takes place by means of a rod-like tool used as a lever, for example a screwdriver or the like, which is inserted into the air guide element 44 from the outside.
  • the self-locking encircling of the air guide elements 44 is preferably only carried out an annular or circular disk-shaped guide area 47 Suite which is narrowly delimited in the longitudinal direction and which has a slightly larger diameter of, for example, 0.2 mm excess than the other guide areas 47.
  • an annular or circular disk-shaped guide area 47 Suite which is narrowly delimited in the longitudinal direction and which has a slightly larger diameter of, for example, 0.2 mm excess than the other guide areas 47.
  • five guide areas 47 are provided at a uniform distance from one another, of which the middle guide area 47 ⁇ has the aforementioned small excess.
  • the individual guide areas 47 also have the task of contributing to the stiffening of the air guide element 44 by their disc-shaped design, in that the parts of the longitudinal profiles 49, 50, 51 of the air guide element 44 are supported on the guide areas.
  • the air guide elements 44 of this type consist of plastic or an aluminum alloy and are produced by injection molding.
  • the hollow cross section of the air guiding element provided for the transverse flow is at Embodiment of Figures 2 to 7 designed T-shaped, ie there are three sub-channels 55,56,57 arranged at an angle of 90 ° to each other, with an inflow sub-channel 55 and two outflow sub-channels 56,57.
  • the air-guiding element 44 is enclosed by the side walls 3, 4 of the outlet channel 2 or by the bearing profile 46 on the outlet side to such an extent that in the symmetrical rotational position according to FIG Part of the outflow subchannels 56, 57 is closed to such an extent that the remaining outlet cross section 59.60 of both outflow subchannels 56.57 is at least approximately the same size as the cross section of the inflow subchannel 55. Accordingly, part of the circumference of the air guiding element 44 projects beyond a plane that the End faces 61,62 of the outlet channel 2, or the side walls 3,4 connects.
  • the longitudinal profiles 49, 50 forming the side walls of the inflow sub-channel 55 and a side wall of the outflow sub-channels 56, 57 have an angular cross section with a uniform wall thickness. This shape prevents undesired changes in shape during cooling or Solidification of the air guiding element in its manufacture as a plastic injection molded part.
  • a wall part or longitudinal profiling part 51 is arranged behind it in the flow direction, onto which the air flow strikes in order to be deflected laterally outwards on two opposite sides.
  • This longitudinal profiling part 51 can have different cross-sectional shapes which achieve this flow deflection in order to achieve the cross-sectional variant indicated above.
  • FIGS. 9 and 11 show examples of flow patterns achievable through an air outlet.
  • FIGS. 9 and 11 seen from below against a room ceiling, different blow-out directions of the individual air guide elements 44 are shown one after the other in the longitudinal direction of the air outlet 1.
  • the flow pattern according to Fig. 9 has the following outflow directions of the air guiding elements: flat on both sides, 30 ° left, 30 ° right, flat on both sides, 30 ° left, 30 ° right, flat on both sides.
  • 11 has the following flow directions from top to bottom: flat on both sides, 45 ° right, vertically downwards, 45 ° left, flat on both sides, flat on both sides, 45 ° right, vertically downwards, 45 ° left, flat on both sides .
  • each air guiding element 44 due to its subdivision by the circular disk-shaped guide areas 47 in the longitudinal direction, in each case produces a group of four rectified partial streams which, however, wedge into a uniform cross section. or club-shaped elongated air jet 65, as indicated with different flow directions in FIG. 1.
  • an air outlet according to the invention takes place in a position set back from the outer plane of the ceiling cladding 33, 34, so that the flatly flowing air flows over the rounded edge areas 66, 67 of the ceiling cladding profiles 33, 34 and is due to the Coanda effect hugs them, as indicated by the air jets 65 ⁇ , 65 ⁇ .

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Duct Arrangements (AREA)
  • Air-Flow Control Members (AREA)
  • Self-Closing Valves And Venting Or Aerating Valves (AREA)
  • Catching Or Destruction (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

To obtain a flat outflow on both sides from an air outlet (1) arranged in the slot space between two ceiling covering panels (33', 34'), an air guide element (44), which is held rotatably between the side walls (3, 4) of the outlet channel (2), has a T-shaped hollow cross-section which is provided for the transverse throughflow and which forms an inward flow part channel (55) and two oppositely directed outward flow part channels (56, 57). <IMAGE>

Description

Die Erfindung betrifft einen Luftauslass gemäss dem Oberbegriff des Patentanspruchs 1.The invention relates to an air outlet according to the preamble of patent claim 1.

Ein Luftauslass dieser Art ist beispielsweise bekannt durch die DE-A- 2553196. Für derartige bekannte Luftauslässe ist die Ausführung des Luftleitorganes in Form einer Walze mit einem schlitzartigen, diametral verlaufenden Strömungskanal charakteristisch. Ein walzenförmiges querdurchströmtes Luftleitorgan mit mehreren hintereinander angeordneten schlitzartigen Luftdurchströmungsöffnungen ist weiterhin durch die DE-A- 16 79 564 bekannt. Da das Luftleitorgan für seine drehbare Lagerung seitlich zwischen den Wänden des schlitzförmigen Austrittskanals formschlüssig eingeschlossen ist, lässt sich die Ausströmrichtung der Luft nur in einem entsprechend begrenzten Winkelbereich durch Drehen des Luftleitorganes verändern. Bei weiterer Verdrehung schliesst sich der Strömungskanal, da seine Austrittsöffnung dann von der Wand des Austrittkanals überdeckt wird. Um die Luft nach beiden Seiten in den Raum hinein zu verteilen, müssen in Längsrichtung hintereinander im Austrittskanal gelagerte Luftleitorgane abwechselnd in entgegengesetzte Richtung eingestellt werden. Das dabei auftretende sägezahnartige Erscheinungsbild wird in Kombination mit durchlaufenden ebenen Verkleidungsprofilen oft als störend empfunden. Ausserdem wird durch den begrenzten Schwenkbereich der bekannten Luftleitorgane, bzw. der Austrittsströmung und die abwechselnd entgegengesetzten Ausströmrichtungen, die Erzielung eines inbesondere bei niedrigen Räumen angestrebten Coandaeffekts behindert, und eine Strömung entlang der Decke zur verbesserten Verteilung von Kaltluft wird nicht erreicht.An air outlet of this type is known, for example, from DE-A-2553196. For such known air outlets, the design of the air guide element in the form of a roller with a slot-like, diametrically extending flow channel is characteristic. A roller-shaped cross-flow air guide element with a plurality of slot-like air flow openings arranged one behind the other is also known from DE-A-16 79 564. Since the air guide element for its rotatable mounting is positively enclosed laterally between the walls of the slot-shaped outlet channel, the outflow direction of the air can only be changed within a correspondingly limited angular range by rotating the air guide element. With further rotation, the flow channel closes, since its outlet opening is then covered by the wall of the outlet channel. In order to distribute the air into the room on both sides, air guiding elements mounted in the longitudinal direction one behind the other in the outlet channel must be set alternately in the opposite direction. The sawtooth-like appearance that occurs in combination with continuous, flat cladding profiles is often perceived as a nuisance. In addition, the limited swiveling range of the known air guiding elements, or the outlet flow and the alternating opposite outflow directions, hinder the achievement of a Coanda effect, which is aimed in particular at low rooms, and a flow along the ceiling for improved distribution of cold air is not achieved.

Der Erfindung liegt die Aufgabe zugrunde, einen Luftauslass der genannten Art zu finden, der eine besonders flache Abströmung der Luft entlang der Decke oder der Wand des zu belüftenden Raumes und eine beidseitige Abströmung bei einfacher konstruktiver Gestaltung ermöglicht, ohne dass das Erscheinungsbild nachteilig beeinflusst wird. Dabei soll sein Luftelement, wie an sich bekannt, bei verhältnismässig grossem Durchströmungsquerschnitt besonders schmal ausführbar sein, so dass der Austrittskanal in den verhältnismässig schmalen Schlitzraum zwischen den Decken- oder Wandverkleidungsprofilen, z.B. von üblichen Paneelverkleidungen, eingreifen kann. Dieser Schlitzraum ist beispielsweise nur 17 mm breit. Weiterhin soll das Luftleitelement eine auch für besonders langgestreckte Ausführungen ausreichende Formstabilität aufweisen. Schliesslich soll die Querdurchströmung des Luftleitelementes möglichst verlustlos und ohne Strömungsgeräusche erfolgen. Die Lösung dieser Aufgabe erfolgt aufgrund der kennzeichnenden Merkmale des Patentanspruchs 1. Vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der abhängigen Patentansprüche und der folgenden Beschreibung eines Ausführungsbeispieles anhand der Zeichnungen zu entnehmen. Es zeigt:

Fig.1
einen Querschnitt durch eine hinter einer Wand- bzw. Deckenverkleidung montierte Luftverteilkammer mit erfindungsgemässem Luftauslass in schematischer Darstellung,
Fig.2 und 3
eine Aufsicht und Seitenansicht eines Luftleitelementes,
Fig.4 bis 7
verschiedene Einstellpositionen eines Luftleitelementes und
Fig. 8 bis 11
zwei schematisch dargestellte Luftverteileinstellungen eines erfindungsgemässen Luftauslasses mit je einem Querschnitt und einer Aufsicht des Luftauslasses.
The invention has for its object to find an air outlet of the type mentioned, which allows a particularly flat outflow of air along the ceiling or the wall of the room to be ventilated and bilateral outflow with a simple structural design, without adversely affecting the appearance. As is known per se, its air element should be particularly narrow in the case of a relatively large flow cross section, so that the outlet channel can engage in the relatively narrow slot space between the ceiling or wall cladding profiles, for example of conventional panel claddings. This slot space is only 17 mm wide, for example. Furthermore, the air-guiding element should also have sufficient dimensional stability even for particularly elongated designs. Finally, the transverse flow through the air guiding element should be as lossless as possible and without flow noise. This object is achieved on the basis of the characterizing features of patent claim 1. Advantageous refinements of the invention are the subject of the dependent patent claims and the following description of an exemplary embodiment can be found in the drawings. It shows:
Fig. 1
1 shows a cross section through an air distribution chamber with an air outlet according to the invention, mounted behind a wall or ceiling covering, in a schematic illustration,
Fig. 2 and 3
a top and side view of an air guide element,
Fig. 4 to 7
different setting positions of an air guiding element and
8 to 11
two schematically illustrated air distribution settings of an air outlet according to the invention, each with a cross section and a top view of the air outlet.

Der Luftauslass 1 hat einen Austrittskanal 2, dessen beiden Seitenwände 3,4 in verhältnismässig geringem Abstand parallel zueinander verlaufen, so dass er schlitz- oder spaltförmig gestaltet ist. Mehrer Distanzbolzen 5 fixieren beide Kanalseitenwände 3,4 zueinander. Letztere sind als Strangprofil hergestellt und bilden durch je eine bogenförmige Krümmung 6,7 gemeinsam eine Kanalerweiterung 8, die den Uebergang zu der Luftverteilkammer 9 herstellt. Dabei können die Kanalseitenwände in einem Stück in die Kammerseitenwand übergehen oder einen sich anschliessenden Profilteil 11,12 aufweisen, in den ein entsprechend geformter Bereich 14,15 der Blechwand 16 jeweils formschlüssig eingreift. Beide, somit die Kanalseitenwände 3,4 und einen der Wandhalterung dienenden Profilteil 11, 12 bildenden und somit winkelartig gestalteten Strangprofile 17, 19 haben weiterhin jeweils eine Halterungsnut 20, 21 für eine als Luftfilter dienende Lochplatte 22 sowie jeweils ein Nutenpaar 24,25;26,27 für den Eingriff von Halterungsteilen 29,30, die an Gewindeschäften 31,32 verstellbar fixiert sind. Die Luftverteilkammmer 9 hat die Form eines im Querschnitt rechteckförmigen langgestreckten Kanals, der parallel zu den im Querschnitt flach-c-förmig gestalteten Deckenverkleidungsprofilen 33,34 hinter Isolierplatten 35 der Deckenverkleidung verläuft. Senkrecht zu einer Längswand 37 der Luftverteilkammer 9 schliesst sich ein im Querschnitt kreisförmiger Zuluftkanal über den in die Längswand 37 eingesetzten Anschlussstutzen 39 an. In diesen ist ebenfalls eine der Luftfilterung dienende Lochplatte 40 eingesetzt. Die gesamte, der Luftzufuhr dienende Anordnung ist über mehrere der genannten Gewindeschäfte 31 an der Raumdecke 41 aufgehängt.The air outlet 1 has an outlet channel 2, the two side walls 3, 4 of which run parallel to one another at a relatively small distance, so that it is designed in the form of a slot or a gap. Several spacer bolts 5 fix both channel side walls 3, 4 to one another. The latter are produced as an extruded profile and, by means of an arcuate curvature 6, 7, together form a channel extension 8, which creates the transition to the air distribution chamber 9. The channel side walls can merge in one piece into the chamber side wall or have an adjoining profile part 11, 12 in which a correspondingly shaped area 14, 15 of the sheet metal wall 16 engages in a form-fitting manner. Both, thus forming the channel side walls 3, 4 and an extruded profile 17, 19 forming the wall bracket and thus having an angular configuration, each have a mounting groove 20, 21 for a perforated plate 22 serving as an air filter and a pair of grooves 24, 25; 26 , 27 for the engagement of mounting parts 29, 30 which are adjustably fixed on threaded shafts 31, 32. The air distribution chamber 9 has the shape of an elongated channel which is rectangular in cross section and runs parallel to the ceiling cladding profiles 33, 34 which are flat-c-shaped in cross section behind insulating plates 35 of the ceiling cladding. At right angles to a longitudinal wall 37 of the air distribution chamber 9, a supply air duct with a circular cross section is connected via the connecting piece 39 inserted into the longitudinal wall 37. A perforated plate 40 serving for air filtering is also inserted in these. The entire arrangement which serves to supply air is suspended from the ceiling 41 by several of the threaded shafts 31 mentioned.

Aus ästhetischen Gründen ist der Abstand zwischen den streifenförmigen bzw. leistenförmigen Deckenverkleidungsprofilen 33,34 gering und beträgt bei üblichen "Paneel"-Decken 17 mm. Für ein für die Montage des Luftauslasses 1 ausreichendes Seitenspiel im Schlitzraum 42 zwischen den Verkleidungsprofilen 33,34 beträgt die grösste äussere Breite an den zueinander parallelen Kanalseitenwänden 3,4 d.h. im Eingriffsbereich mit den Verkleidungsprofilen 33,34 15 mm, wobei diese grösste Breite in Ausströmrichtung vor dem oder den Luftleitelementen 44 durch eine strömungstechnisch vorteilhafte Ausbauchung 45 des Austrittskanals 2 gebildet ist. An diese Ausbauchung 45 schliesst sich in Strömungsrichtung eine für die drehbare Halterung des Luftleitelementes 44 vorgesehene Lagerungsprofilierung 46 an, die aus je einer im Querschnitt kreisbogenförmigen Rille besteht, deren Krümmungsradius demjenigen von kreisring- bzw. kreisscheibenförmigen Führungsbereichen 47 des jeweiligen Luftleitelementes 44 entspricht. Die Lagerungsprofilierung umschliesst das Luftleitelement 44 mit geringer Vorspannung, so dass es selbsthemmend gehalten ist, bzw. eine Verdrehung für eine andere Ausströmrichtung nur nach Ueberwindung eines Widerstandes möglich ist. Das Verdrehen erfolgt mittels eines als Hebel verwendeten stabartigen Werkzeuges, z.B. eines Schraubenziehers o.dgl., das von aussen in das Luftleitelement 44 eingesteckt wird.For aesthetic reasons, the distance between the strip-shaped or strip-shaped ceiling cladding profiles 33, 34 is small and is 17 mm in the case of conventional “panel” ceilings. For sufficient side play in the slot space 42 between the cladding profiles 33, 34 for the installation of the air outlet 1, the greatest outer width is at the one another parallel channel side walls 3, 4, ie 15 mm in the area of engagement with the cladding profiles 33, 34, this greatest width in the outflow direction being formed in front of the air guide element or elements 44 by a bulge 45 of the outlet channel 2 which is advantageous in terms of flow technology. This bulge 45 is followed in the flow direction by a bearing profile 46 provided for the rotatable mounting of the air guide element 44, each of which consists of a groove with an arcuate cross section, the radius of curvature of which corresponds to that of annular or circular guide areas 47 of the respective air guide element 44. The bearing profile surrounds the air guiding element 44 with a low pretension, so that it is held in a self-locking manner, or rotation for a different outflow direction is only possible after overcoming a resistance. The rotation takes place by means of a rod-like tool used as a lever, for example a screwdriver or the like, which is inserted into the air guide element 44 from the outside.

Um zu verhindern, dass bei geringen fertigungstechnisch bedingten Mass- oder Formabweichungen von in Längsrichtung hintereinander zwischen den Lagerungsproflilierungen 46 gehaltenen Luftleitelementen 44 nicht alle Luftleitelemente 44 mit Selbsthemmung eingeschlossen sind, sondern nur diejenigen mit grösserem Mass, erfolgt die selbsthemmende Umfassung der Luftleitelemente 44 vorzugsweise nur an einem in Längsrichtung eng begrenzten kreisring- bzw. kreisscheibenförmigen Führungsbereich 47ʹ, der einen geringfügig grösseren Durchmesser von z.B. 0,2 mm Uebermass gegenüber den übrigen Führungsbereichen 47 aufweist. Entsprechend den Darstellungen der Fig. 2 und 3 sind in gleichmässigem Abstand voneinander fünf Führungsbereiche 47 vorgesehen, von denen der mittlere Führungsbereich 47ʹ das genannte geringe Uebermass aufweist. Der Abstand zu dem selbsthemmend gehaltenen Führungsbereich 47ʹ des in Längsrichtung angrenzenden Luftleitelementes 44 ist folglich ausreichend gross um zu verhindern, dass die Lagerungsproflierung 46 sich durch Ausbiegung nicht an jeden ein Uebermass aufweisenden Führungbereich 47ʹ zur Erzielung einer Selbsthemmung anlegen kann. Die einzelnen Führungsbereiche 47 haben weiterhin die Aufgabe, durch ihre scheibenförmige Ausführung zur Versteifung des Luftleitelementes 44 beizutragen, indem sich die Teile der Längsprofilierungen 49,50,51 des Luftleitelementes 44 an den Führungsbereichen abstützen. Die Luftleitelemente 44 dieser Art bestehen aus Kunststoff oder aus einer Aluminiumlegierung und sind durch Spritzgiessen hergestellt.In order to prevent that, in the case of slight manufacturing or dimensional deviations in shape or shape of air guide elements 44 held in the longitudinal direction one behind the other between the storage profiles 46, not all air guide elements 44 with self-locking are included, but only those with a larger dimension, the self-locking encircling of the air guide elements 44 is preferably only carried out an annular or circular disk-shaped guide area 47bereich which is narrowly delimited in the longitudinal direction and which has a slightly larger diameter of, for example, 0.2 mm excess than the other guide areas 47. According to the representations of FIGS. 2 and 3, five guide areas 47 are provided at a uniform distance from one another, of which the middle guide area 47ʹ has the aforementioned small excess. The distance from the self-locking guide area 47ʹ of the air guide element 44, which is adjacent in the longitudinal direction, is consequently sufficiently large to prevent the positioning profile 46 from going through Bending cannot apply to everyone with an excessive guide area 47ʹ to achieve self-locking. The individual guide areas 47 also have the task of contributing to the stiffening of the air guide element 44 by their disc-shaped design, in that the parts of the longitudinal profiles 49, 50, 51 of the air guide element 44 are supported on the guide areas. The air guide elements 44 of this type consist of plastic or an aluminum alloy and are produced by injection molding.

Um in einer bestimmten, in Fig. 4 dargestellten Drehposition des Luftleitelementes 44 eine Luftausströmung in zwei einander entgegengesetzten Richtungen entsprechend den Pfeilen 53,54, d.h. quer zur Längsrichtung des langgestreckten Luftleitelementes 44, zu ermöglichen, ist der für die Querdurchströmung vorgesehene Hohlquerschnitt des Luftleitelementes beim Ausführungsbeispiel der Fig.2 bis 7 T-förmig gestaltet, d.h. es sind drei im Winkel von 90° zueinander angeordnete Teilkanäle 55,56,57 vorhanden, mit einem Zuströmteilkanal 55 und zwei Abströmteilkanälen 56,57. Um bei der Durchströmung des Luftleitelementes geräuscherzeugende, bzw. strömungsungünstige Querschnittsveränderungen zu vermeiden, ist das Luftleitelement 44 von den Seitenwänden 3,4 des Austrittskanals 2, bzw. von der Lagerungsprofilierung 46 so weit austrittsseitig umschlossen, dass in der symmetrischen Drehposition nach Fig.4 ein Teil der Abströmteilkanäle 56, 57 soweit geschlossen ist, dass der verbleibende Austrittsquerschnitt 59,60 beider Abströmteilkanäle 56,57 mindestens angenähert gleich gross ist wie der Querschnitt des Zuströmteilkanals 55. Entsprechend steht ein Teil des Umfanges des Luftleitelementes 44 über eine Ebene über, die die Stirnflächen 61,62 des Austrittskanals 2, bzw. der Seitenwände 3,4 verbindet. Die die Seitenwände des Zuströmteilkanals 55 und eine Seitenwand der Abströmteilkanäle 56,57 bildenden Längsprofilierungen 49,50 haben einen winkelförmigen Querschnitt mit gleichförmiger Wanddicke. Diese Formgebung verhindert unerwünschte Formveränderungen bei der Abkühlung bzw. Verfestigung des Luftleitelementes bei seiner Herstellung als Kunststoffspritzteil. Die sich dabei ergebenden äusseren, im Querschnitt winkelförmigen Vertiefungen, die in Längsrichtung des Luftleitelementes 44 durch die kreisscheibenförmigen Führungsbereiche 47,47ʹ unterbrochen sind, bilden ausserdem Eingriffsräume, in die ein Ausstosser eines Formwerkzeuges für die Herstellung als Spritzgiessformteil eingreifen kann.In order to allow an air outflow in two opposite directions according to arrows 53, 54, that is to say transversely to the longitudinal direction of the elongated air guiding element 44, in a certain rotational position of the air guiding element 44 shown in FIG. 4, the hollow cross section of the air guiding element provided for the transverse flow is at Embodiment of Figures 2 to 7 designed T-shaped, ie there are three sub-channels 55,56,57 arranged at an angle of 90 ° to each other, with an inflow sub-channel 55 and two outflow sub-channels 56,57. In order to avoid noise-producing or flow-unfavorable cross-sectional changes when flowing through the air-guiding element, the air-guiding element 44 is enclosed by the side walls 3, 4 of the outlet channel 2 or by the bearing profile 46 on the outlet side to such an extent that in the symmetrical rotational position according to FIG Part of the outflow subchannels 56, 57 is closed to such an extent that the remaining outlet cross section 59.60 of both outflow subchannels 56.57 is at least approximately the same size as the cross section of the inflow subchannel 55. Accordingly, part of the circumference of the air guiding element 44 projects beyond a plane that the End faces 61,62 of the outlet channel 2, or the side walls 3,4 connects. The longitudinal profiles 49, 50 forming the side walls of the inflow sub-channel 55 and a side wall of the outflow sub-channels 56, 57 have an angular cross section with a uniform wall thickness. This shape prevents undesired changes in shape during cooling or Solidification of the air guiding element in its manufacture as a plastic injection molded part. The resulting outer recesses, which are angular in cross-section and which are interrupted in the longitudinal direction of the air-guiding element 44 by the circular disk-shaped guide regions 47, 47 ', also form engagement spaces into which an ejector of a mold for production as an injection molded part can engage.

Für eine beidseitige Abströmung in einer Querschnittsebene des erfindungsgemässen Luftauslasses ist auch ein anderer mit einem bogenförmigen Querteil der T-Form (

Figure imgb0001
) Querschnitt möglich, d.h. quer zu einem Zuströmteilkanal 55 ist ein Wandteil bzw. Längsprofilierungsteil 51 in Strömungsrichtung hinter diesem angeordnet, auf die das die Luftströmung auftrifft, um nach zwei entgegengesetzten Seiten seitlich nach aussen abgelenkt zu werden. Diese Längsprofilierungsteil 51 kann zur Erzielung der zuvor angedeuteten Querschnittsvariante verschiedene Querschnittsformen aufweisen, die diese Strömungsablenkung bewirken.For an outflow on both sides in a cross-sectional plane of the air outlet according to the invention, another one with an arcuate transverse part of the T-shape (
Figure imgb0001
) Cross-section possible, ie transversely to an inflow subchannel 55, a wall part or longitudinal profiling part 51 is arranged behind it in the flow direction, onto which the air flow strikes in order to be deflected laterally outwards on two opposite sides. This longitudinal profiling part 51 can have different cross-sectional shapes which achieve this flow deflection in order to achieve the cross-sectional variant indicated above.

In der in Fig. 4 dargestellten Drehposition von zahlreichen hintereinander angeordneten Luftleitelementen 44 ergibt sich ein ästhetisch besonders vorteilhaftes Erscheinungsbild im Bereich zwischen den Deckenverkleidungsprofilen und damit der gesamten Raumdecke. Zur Berücksichtigung von räumlichen Gegebenheiten, wie z.B. von in einem grösseren Raum angeordneten Zwischenwänden oder der Raumseitenwände, lassen sich jedoch durch die individuelle Verstellbarkeit der einzelnen Luftleitelemente 44 optimale Strömungsmuster der Zuluft für die Raumklimatisierung erzielen, wie es für in der Breite nicht begrenzte Schlitzauslässe z.B. durch die US-A-3 302 550,(Sp. 1, Z. 51-54 und Sp. 3, Z. 35-37) und die US-A-3 308 744 (Sp. 5, Z. 44,45) an sich bekannt ist. Fig. 5 bis 7 zeigen Beispiele für Einstellpositionen eines Luftleitelementes, während durch die Fig.8 bis 11 Beispiele für durch einen Luftauslass erzielbare Strömungsmuster gezeigt sind. In den von unten gegen eine Raumdecke gesehenen schematischen Ansichten der Fig.9 und 11 sind in Längsrichtung des Luftauslasses 1 nacheinander verschiedene Ausblasrichtungen der einzelnen Luftleitelemente 44 dargestellt. Das Strömungsmuster nach Fig.9 hat gemäss der Abbildung von oben nach unten folgende Ausströmrichtungen der Luftleitelemente: beidseitig flach, 30° links, 30° rechts, beidseitig flach, 30° links, 30° rechts, beidseitig flach. Das Strömungsmuster nach Fig. 11 hat gemäss der Abbildung von oben nach unten folgende Ausströmrichtungen: beidseitig flach, 45° rechts, senkrecht abwärts, 45° links, beidseitig flach, beidseitig flach, 45° rechts, senkrecht abwärts, 45° links, beidseitig flach. Dabei ist zu berücksichtigen, dass bei Verwendung der Luftleitelemente 44 gemäss Fig.2 und 3 jedes Luftleitelement 44 aufgrund seiner Unterteilung durch die Kreisscheibenförmigen Führungsbereiche 47 in Längsrichtung hintereinander jeweils eine Gruppe von vier gleichgerichteten Teilströmen erzeugt, die sich jedoch zu einem einheitlichen im Querschnitt keil- bzw. keulenförmigen langgestreckten Luftstrahl 65 vereinigen, wie sie mit verschiedenen Strömungsrichtungen in Fig. 1 angedeutet sind.In the rotational position shown in FIG. 4 of numerous air guide elements 44 arranged one behind the other, an aesthetically particularly advantageous appearance results in the area between the ceiling covering profiles and thus the entire ceiling. In order to take into account spatial conditions, such as partition walls arranged in a larger room or the side walls of the room, the individual adjustability of the individual air guiding elements 44 allows optimal flow patterns of the supply air to be achieved for room air conditioning, as is the case, for example, for slot outlets that are not limited in width US-A-3,302,550, (col. 1, lines 51-54 and col. 3, lines 35-37) and US-A-3,308,744 (col. 5, line 44,45) is known per se. 5 to 7 show examples of setting positions of an air guiding element, while FIGS. 8 to 11 show examples of flow patterns achievable through an air outlet. In the schematic views of FIGS. 9 and 11 seen from below against a room ceiling, different blow-out directions of the individual air guide elements 44 are shown one after the other in the longitudinal direction of the air outlet 1. According to the illustration, the flow pattern according to Fig. 9 has the following outflow directions of the air guiding elements: flat on both sides, 30 ° left, 30 ° right, flat on both sides, 30 ° left, 30 ° right, flat on both sides. 11 has the following flow directions from top to bottom: flat on both sides, 45 ° right, vertically downwards, 45 ° left, flat on both sides, flat on both sides, 45 ° right, vertically downwards, 45 ° left, flat on both sides . It should be taken into account that when using the air guiding elements 44 according to FIGS. 2 and 3, each air guiding element 44, due to its subdivision by the circular disk-shaped guide areas 47 in the longitudinal direction, in each case produces a group of four rectified partial streams which, however, wedge into a uniform cross section. or club-shaped elongated air jet 65, as indicated with different flow directions in FIG. 1.

Aus äesthetischen und aus strömungstechnischen Gründen erfolgt die Anordnung eines erfindungsgemässen Luftauslasses in einer gegenüber der äusseren Ebene der Deckenverkleidung 33,34 zurückversetzten Position, so dass die flach ausströmende Luft über die abgerundeten Randbereiche 66,67 der Deckenverkleidungsprofile 33,34 strömt und sich aufgrund des Coandaeffektes an diese anschmiegt, wie durch die Luftstrahlen 65ʹ, 65ʺ angedeutet ist.For aesthetic and fluidic reasons, the arrangement of an air outlet according to the invention takes place in a position set back from the outer plane of the ceiling cladding 33, 34, so that the flatly flowing air flows over the rounded edge areas 66, 67 of the ceiling cladding profiles 33, 34 and is due to the Coanda effect hugs them, as indicated by the air jets 65ʹ, 65ʺ.

Claims (8)

  1. Air outlet with a slot-like discharge channel (2) intended for connection to an air distribution chamber (9), for engagement in the slot space between the ceiling or wall cladding profiles (33, 34) of a room to be ventilated and in the opening area of the discharge channel (2) is held at least one elongated air deflector (44) through which there is a transverse flow so as to be rotatable about a geometrical axis at right angles to the channel through-flow between two side walls (3, 4) of the discharge channel (2) and which for the hollow cross-section of the at least one air deflector (44) provided for the transverse flow forms three partial channels (55, 56, 57) , whereof one is formed an inflow partial channel (55) and the others outflow partial channels (56, 57), characterized in that the partial channels (55, 56, 57) form a T-shaped hollow cross-section for the flow through the air deflector (44) and the latter projects outwards over the plane of the opening of the discharge channel (2).
  2. Air outlet according to claim 1, characterized in that the at least one air deflector (44) has in its longitudinal direction successively arranged flow channels (figs. 2 and 3) separated by partitions (47, 47') and which are formed by the partial channels (55, 56, 57).
  3. Air outlet according to claims 1 or 2, characterized in that the longitudinal profile (51) outwardly bounding the outflow partial channels (56, 57) has an arcuate or angular cross-section with inwardly or outwardly directed curvature.
  4. Air outlet according to one of the claims 1 to 3, characterized in that the partial channels (55, 56, 57) are bounded by two cross-sectionally, angular longitudinal profiles (49, 50) of the air deflector (44).
  5. Air outlet according to one of the claims 1 to 4, characterized in that the at least one air deflector (44) has at least two axially spaced, circumferentially circular guide areas (47).
  6. Air outlet according to one of the claims 1 to 6, characterized in that the at least one air deflector (44) has a circumferentially circular guide area (47), which forms the largest diametrical dimension of the air deflector (44).
  7. Air outlet according to claim 1, characterized in that the opening edge (61, 62) of the discharge channel (2) in the symmetrical position of the air deflector (44) relative to the discharge channel (2) closes the flow cross-section of the outflow partial channels (56, 57) to such an extent that the remaining uncovered cross-section of the particular outflow partial channel is at least approximately half as large as the flow cross-section of the inflow partial channel (55).
  8. Air outlet according to one of the claims 1 to 7, characterized in that the discharge channel (2) has a bulge (45) immediately upstream of the air deflector (44).
EP87103723A 1986-01-23 1987-03-14 Air outlet Revoked EP0239854B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87103723T ATE63633T1 (en) 1986-01-23 1987-03-14 AIR OUTLET.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH260/86A CH668198A5 (en) 1985-01-25 1986-01-23 PROCESS AND APPARATUS FOR TREATING PARTICLE MATERIAL.
CH260/86 1986-03-27

Publications (2)

Publication Number Publication Date
EP0239854A1 EP0239854A1 (en) 1987-10-07
EP0239854B1 true EP0239854B1 (en) 1991-05-15

Family

ID=4182949

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87103723A Revoked EP0239854B1 (en) 1986-01-23 1987-03-14 Air outlet

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EP (1) EP0239854B1 (en)
AT (1) ATE63633T1 (en)
DE (1) DE3770035D1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1033659C2 (en) * 2007-04-10 2008-10-13 Barcol Air B V Air distribution device for e.g. room ventilation, comprises succession of chambers arranged in length direction for directing outgoing air flow independent of chamber configuration

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3099949A (en) * 1962-02-19 1963-08-06 Thermotank Inc Air distributor valve
US3308744A (en) 1964-12-07 1967-03-14 Barber Colman Co Strip type air distributor
US3302550A (en) 1964-12-31 1967-02-07 Quentin R Thomson Air distributor
NL6612571A (en) 1966-09-07 1968-03-08
DE1979813U (en) 1967-11-24 1968-02-29 Holzwerke H Wilhelmi O H G AIR BOX FOR AIR CONDITIONING SYSTEMS.
DE2222453B2 (en) 1972-05-08 1981-09-24 Ltg Lufttechnische Gmbh, 7000 Stuttgart Slot air outlet for blowing supply air into a building room
DE2430216C2 (en) * 1974-06-24 1983-12-01 Ltg Lufttechnische Gmbh, 7000 Stuttgart Air intake
DE2553196C3 (en) * 1975-11-27 1983-04-07 Holzwerke H. Wilhelmi Gmbh & Co Kg, 6335 Lahnau Ceiling air outlet for room ventilation
DE2712473A1 (en) * 1977-03-22 1978-09-28 Trox Gmbh Geb Air outlet channel for air conditioning plant - has swivelling flap for longitudinal outlet slot directing or closing air stream
DE2914863C2 (en) * 1979-04-12 1982-12-09 Zumtobel AG, 6850 Dornbirn Air outlet for blowing supply air into a building room

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Publication number Publication date
EP0239854A1 (en) 1987-10-07
DE3770035D1 (en) 1991-06-20
ATE63633T1 (en) 1991-06-15

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