EP0267486B1 - Device for guiding an air stream - Google Patents

Device for guiding an air stream Download PDF

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Publication number
EP0267486B1
EP0267486B1 EP87115721A EP87115721A EP0267486B1 EP 0267486 B1 EP0267486 B1 EP 0267486B1 EP 87115721 A EP87115721 A EP 87115721A EP 87115721 A EP87115721 A EP 87115721A EP 0267486 B1 EP0267486 B1 EP 0267486B1
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EP
European Patent Office
Prior art keywords
lamellae
air
lamella
pair
pivots
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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EP87115721A
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German (de)
French (fr)
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EP0267486A3 (en
EP0267486A2 (en
Inventor
Wilhelm Ing. Grad. Habel
Gerwin Dipl.-Ing. Klaner
Gustav Leuchtmann
Klaus Dipl.-Ing. Minnerop
Norbert Dipl.-Ing. Steinhoff
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Happel & Co GmbH
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Happel & Co GmbH
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Priority to AT87115721T priority Critical patent/ATE57251T1/en
Publication of EP0267486A2 publication Critical patent/EP0267486A2/en
Publication of EP0267486A3 publication Critical patent/EP0267486A3/en
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Publication of EP0267486B1 publication Critical patent/EP0267486B1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/26—Arrangements for air-circulation by means of induction, e.g. by fluid coupling or thermal effect
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
    • F24F13/072—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser of elongated shape, e.g. between ceiling panels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/1413—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre using more than one tilting member, e.g. with several pivoting blades

Definitions

  • the invention relates to a device for guiding an air flow through lamellae, which are arranged at the outlet of an air flow-guiding, in particular generating device, wherein two lamellae with their lateral longitudinal edges facing the airflow source are articulated rotatably on an axis or two axes lying close to each other, to form a pair of lamellae which forms air ducts with adjacent pairs of lamellae, the width of which can be changed by pivoting the lamellae.
  • V-shaped lamellae are known from the outlet of a device guiding an air flow from US Pat. No. 2,224,312.
  • the individual adjustment of the slats means that the air flows emerging between the pairs of slats are different in strength and direction from one another. In particular, this is intended to achieve a uniform air flow when an air flow is branched off. After an initial setting, this setting should be retained permanently.
  • the object of the invention is to improve an air guiding device of the type mentioned in such a way that the penetrating parts into the space can be easily and exactly changed.
  • the lamellae are continuously adjustable by pivoting such that in a flow direction in and after the air channels in the direction of the incoming air, the air channels have a smaller width than in an oblique direction to the incoming air, and that the lamellae are adjustable by means of a linkage, one slat of a pair of slats being adjustable independently of the second slat of the same pair of slats.
  • the lamellae or profiles form the smallest free flow cross sections between them, as a result of which very high air flow velocities are achieved in the channels, so that the emerging air reaches a great depth of penetration.
  • the profiles are arranged so obliquely to one another that the air ducts between them deviate from the incoming direction, the profiles form larger free flow cross sections between them, which lead to a wider distribution of the outflowing air in the room.
  • the former setting is particularly advantageous in the case of air outlets arranged on the ceiling of rooms, the air flowing vertically downwards and the second arrangement being particularly advantageous in the case of outlets arranged on the walls of rooms.
  • the slats are adjustable by means of a linkage.
  • every second lamella can be articulated on a first rod at right angles to the incoming air and the remaining lamellae on a second rod.
  • any fraction, preferably one half, of the pairs of plates lying next to one another can be adjusted jointly but independently of the pairs of plates of the other group.
  • the slats are coupled to one another in such a way that when one slat half is moved outwards, the other slat half is adjusted in the opposite direction outwards.
  • Air outlet speed and mixing with the room air are further improved in that the lateral end faces of the intermediate space of each pair of lamellae are open in order to allow secondary air to enter.
  • the pairs of lamellae are fastened in front of the outlet so that secondary air can enter the intermediate spaces freely.
  • the axes of a number, in particular one half, of the lamellae lie in a plane which is at an angle a to the plane of the other axes.
  • the angle a can be 30 to 120 °, in particular approximately 90 ° .
  • the lamellae are articulated on the sides of a truncated pyramid.
  • the axes of the lamellae lie in a cylindrical surface.
  • the device has a plurality of lamellae 1a, 1b, which can also be called flat profiles, flaps, baffles, Venetian blind profiles and of which two 1 a, 1 b each form a pair of lamellae 2.
  • the slats 1 a, 1 b are articulated at one end to an axis 3.
  • This axis 3 is on the side of the pair of fins facing the air flow source, so that the incoming air 4 first hits the axis 3 and then reaches air channels 5, which are each formed between the pairs of fins 2.
  • the mutually adjacent slats 1 a, 1 b of two different pairs of slats each form an air channel between them, which tapers towards the outside in the flow direction 6.
  • the axis of rotation is provided with a radius in the direction of flow, which ensures an aerodynamically favorable flow to the air channels.
  • the slats 1a, 1, which can be rotated about the axis 3, can be adjusted such that the space 7 between two slats of a pair of slats 2 becomes smaller and the air duct 5 becomes larger and the space larger and the air duct 5 correspondingly smaller.
  • the position shown in FIG. 1 shows a minimum width B of the air channels 5, so that the air emerging thereby reaches a very high speed and thus a large depth of space.
  • the outflow direction 8 is the same or parallel to the inflow direction 6.
  • the slats 1 a are not adjusted by the same angle of rotation as the slats 1 b, but one of the two slat types 1 a or 1 b is rotated more than the other, so that the iri shown in Figure 2 oblique middle position is reached. Because of the larger width B, the outflow velocity is lower than in FIG. 1, so that the lower outlet velocities of the supply air result in a lower penetration depth. If the fins are pivoted even more in an inclined position, the fins 1a in turn being rotated more counterclockwise downward than the fins 1b, the position shown in FIG. 3 is generated in which the largest free flow cross section (B maximum) and a maximum Inclination and thus outflow deflection is created. The penetration depth achieved is relatively small but the air deflection is relatively large.
  • At least one lamella 1a is connected to a lamella 1 via an inclined articulated rod 13, this articulated rod 13 being inclined to the incoming air and to the rods 10, 11.
  • the articulation point 14 of the rod 13 on the lamella 1b is thus at a different distance A1 than the distance A2 between the articulation point 15 of the rod 13 on the lamella 1a and the axis 3.
  • the joints and articulation points can be formed by screw channels 16, which are formed on the inside of the lamellae.
  • the outer surfaces of the lamellae 1a, 1 are convex, so that the air channels operate in a nozzle-like manner.
  • the exemplary embodiment according to FIGS. 4 to 6 differs from that according to FIGS. 1 to 3 in that part 2a of the slats can be pivoted to one side and the other part 2b of the slats to the other side, so that the inflowing air flow is divided.
  • Such a division of the air flow into two opposite sides is particularly advantageous if the air outlet is on the ceiling of a room or hall.
  • the linkage is divided into two pairs of rods 10, 11, of which one pair of rods controls a lamella part 2a and the other pair of rods controls the second lamella part 2b.
  • actuating rods are articulated on the rods so that when the slats of one part 2a or half are pivoted, the other part 2b or the other half is pivoted in the opposite direction of rotation.
  • the lamellae 1a, 1b of a single pair of lamellae 2 form between them the intermediate space 7, which is open towards the end faces, for secondary purposes to let air in. This secondary air then flows out in the outflow direction 8, since it is carried along by the air flowing through the air channels 5.
  • the fins are arranged so far in front of the outlet of a device or an air duct that the end faces are free.
  • one half of the lamellae and thus four lamellae 1a, 1b are fastened to the edge of a first outlet opening 17 which is inclined at 45 ° to the inlet opening 19, the second outlet opening 18 being at an angle of 90 ° to the first outlet opening 17 and forms an angle of 45 ° to the inlet opening 19.
  • the three openings 17, 18, 19 thus form a straight prism with a right-angled and isosceles triangle as the base.
  • four outlet openings can also be provided, which form a truncated pyramid, the base of which forms the inlet opening. In this case, the upper surface of the stump parallel to the inlet opening can form a further outlet opening.
  • FIGS. 9 and 10 differs from that according to FIGS. 7 and 8 essentially in that the rods 10, 11, 13 connecting the slats 1 a, 13 are shown and between the innermost and thus the lowest two slats in the interior of the housing an air baffle 23 bent at a right angle is arranged, which prevents air flow between these two fins.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Flow Control Members (AREA)
  • Duct Arrangements (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Regulation And Control Of Combustion (AREA)
  • Looms (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Control Of Electric Motors In General (AREA)
  • Braking Arrangements (AREA)
  • Gas-Insulated Switchgears (AREA)

Abstract

1. A device for guiding an air stream by parallel lamellae (1a, 1b) which are disposed at the outlet of a device guiding and more particularly producing the air stream, each two lamellae (1a, 1b) being rotatably articulated via their lateral longitudinal edges adjacent the source of the air stream to a pivot (3) or to two pivots disposed closely adjacent to one another, to form a pair (2) of lamellae which co-operates with adjacent pairs of lamellae (2) to form air channels (5), whose width can be changed by pivoting the lamellae (1a, 1b), characterized in that the lamellae (1a, 1b) can always be so adjusted by pivoting that with a direction (8) of flow in and to the air channels (5) in the direction of the inflowing air (6) the air channels (5) have a smaller width (b) than in the direction at an inclination to the inflowing air (6), and the lamellae (1a, 1b) can be adjusted via a linkage (9, 10, 11), each lamella (1a) of a pair (2) of lamellae being adjustable independently of the second lamella of the same pair (2).

Description

Die Erfindung betrifft eine Vorrichtung zum Leiten eines Luftstroms durch Lamellen, die am Auslaß einer den Luftstrom führenden, insbesondere erzeugenden Einrichtung angeordnet sind, wobei je zwei Lamellen mit ihren der Luftstromquelle zugewandten seitlichen Längskanten an einer Achse oder zwei nahe beieinander liegenden Achsen drehbeweglich angelenkt sind, um ein Lamellenpaar zu bilden, das mit benachbarten Lamellenpaaren Luftkanäle bildet, deren Breite durch Verschwenken der Lamellen veränderbar ist.The invention relates to a device for guiding an air flow through lamellae, which are arranged at the outlet of an air flow-guiding, in particular generating device, wherein two lamellae with their lateral longitudinal edges facing the airflow source are articulated rotatably on an axis or two axes lying close to each other, to form a pair of lamellae which forms air ducts with adjacent pairs of lamellae, the width of which can be changed by pivoting the lamellae.

Solche V-förmig angeordneten Lamellen sind am Auslaß einer einen Luftstrom führenden Einrichtung aus der US-Patentschrift 2 224 312 bekannt. Bei dieser bekannten Luftleiteinrichtung wird durch das einzelne Verstellen der Lamellen erreicht, daß die zwischen den Lamellenpaaren austretenden Luftströme in Stärke und Richtung zueinander unterschiedlich sind. Insbesondere soll hierdurch bei einer Abzweigung eines Luftstroms ein gleichmäßiger Luftstrom erreicht werden. Nach einem anfänglichen Einstellen soll diese Einstellung permanent erhalten bleiben.Such V-shaped lamellae are known from the outlet of a device guiding an air flow from US Pat. No. 2,224,312. In this known air guiding device, the individual adjustment of the slats means that the air flows emerging between the pairs of slats are different in strength and direction from one another. In particular, this is intended to achieve a uniform air flow when an air flow is branched off. After an initial setting, this setting should be retained permanently.

Bei diesen als auch bei üblichen Luftleiteinrichtungen hat es sich gezeigt, daß die Eindringtiefe des Luftstroms in den Raum insbesondere bei Luftheizgeräten nicht genügend tief ist. Dies zeigt sich besonders dann, wenn ein solches Luftheizgerät an der Decke einer Halle befestigt ist und vertikal nach unten bläst. Wird dagegen ein solches Luftheizgerät an der Wand einer Halle befestigt, so ist die Luftverteilung meist nicht genügend gleichmäßig. Je nach der Befestigungsweise an der Decke oder an der Wand ist es erforderlich, unterschiedliche Luftleiteinrichtungen vorzusehen.With these as well as with conventional air guiding devices, it has been shown that the depth of penetration of the air flow into the room is not sufficiently deep, particularly in the case of air heaters. This is particularly evident when such an air heater is attached to the ceiling of a hall and blows vertically downwards. If, on the other hand, such an air heater is attached to the wall of a hall, the air distribution is usually not sufficiently uniform. Depending on the mounting method on the ceiling or on the wall, it is necessary to provide different air control devices.

Aufgabe der Erfindung ist es, eine Luftleitvorrichtung der eingangs genannten Art so zu verbessern, daß die Eindringteile in den Raum leicht und exakt veränderbar ist. Insbesondere ist es Aufgabe der Erfindung, eine Luftleiteinrichtung zu schaffen, die bei einer vertikalen Ausströmrichtung eine größere Eindringtiefe und bei einer horizontalen Ausströmrichtung eine bessere Durchmischung der Raumluft und gleichmäßigere Verteilung der Zuluft erreicht.The object of the invention is to improve an air guiding device of the type mentioned in such a way that the penetrating parts into the space can be easily and exactly changed. In particular, it is an object of the invention to provide an air guiding device which achieves a greater depth of penetration in a vertical outflow direction and better mixing of the ambient air and a more uniform distribution of the supply air in a horizontal outflow direction.

Diese Aufgaben werden erfindungsgemäß dadurch gelöst, daß die Lamellen derart durch Verschwenken ständig verstellbar sind, daß bei einer Strömungsrichtung in und nach den Luftkanälen in Richtung der anströmenden Luft die Luftkanäle eine kleinere Breite aufweisen als in einer zur anströmenden Luft schrägen Richtung, und daß die Lamellen durch ein Gestänge verstellbar sind, wobei jeweils eine Lamelle eines Lamellenpaares unabhängig von der zweiten Lamelle desselben Lamellenpaares verstellbar ist.These objects are achieved in that the lamellae are continuously adjustable by pivoting such that in a flow direction in and after the air channels in the direction of the incoming air, the air channels have a smaller width than in an oblique direction to the incoming air, and that the lamellae are adjustable by means of a linkage, one slat of a pair of slats being adjustable independently of the second slat of the same pair of slats.

Sind die Luftkanäle in Richtung der anströmenden Luft eingestellt, so bilden die Lamellen bzw. Profile zwischen sich die kleinsten freien Strömungsquerschnitte, wodurch in den Kanälen sehr hohe Luftströmungsgeschwindigkeiten erreicht werden, so daß die austretende Luft eine große Eindringtiefe erreicht. Sind dagegen die Profile so schräg zueinander angeordnet, daß die zwischen ihnen befindlichen Luftkanäle von der anströmenden Richtung abweichen, so bilden die Profile zwischen sich größere freie Strömungsquerschnitte, die zu einer breiteren Verteilung der ausströmenden Luft im Raum führen. Die erstere Einstellung ist besonders vorteilhaft bei an der Decke von Räumen angeordneten Luftauslässen, wobei die Luft senkrecht nach unten strömt und die zweitere Anordnung ist besonders von Vorteil bei an den Wänden von Räumen angeordneten Ausläßen. Um eine gleichmäßige und zueinander gleichförmige Verstellung der Lamellen zu erreichen, sind die Lamellen durch ein Gestänge verstellbar. Hierbei kann jede zweite Lamelle an einer zur anströmenden Luft ersten rechtwinkligen Stange angelenkt sein und die übrigen Lamellen an einer zweiten Stange.If the air channels are set in the direction of the incoming air, the lamellae or profiles form the smallest free flow cross sections between them, as a result of which very high air flow velocities are achieved in the channels, so that the emerging air reaches a great depth of penetration. If, on the other hand, the profiles are arranged so obliquely to one another that the air ducts between them deviate from the incoming direction, the profiles form larger free flow cross sections between them, which lead to a wider distribution of the outflowing air in the room. The former setting is particularly advantageous in the case of air outlets arranged on the ceiling of rooms, the air flowing vertically downwards and the second arrangement being particularly advantageous in the case of outlets arranged on the walls of rooms. In order to achieve a uniform and uniform adjustment of the slats, the slats are adjustable by means of a linkage. Here, every second lamella can be articulated on a first rod at right angles to the incoming air and the remaining lamellae on a second rod.

Besonders vorteilhaft ist es, wenn ein beliebiger Bruchteil, vorzugsweise eine Hälfte der nebeneinander liegenden Lamellenpaare gemeinsam aber unabhängig von den Lamellenpaaren der anderen Gruppe verstellbar sind. Damit kann mindestens eine Hälfte des austretenden Luftstroms in einer Schrägrichtung ausgeblasen werden und die restliche Hälfte in der entgegengesetzten Schrägrichtung, so daß eine optimale Verteilung der Luft erreichbar ist. Dies ist bei Deckengeräten besonders zweckmäßig. Hierzu wird auch vorgeschlagen, daß die Lamellen in der Weise miteinander gekoppelt sind, daß bei einer Verstellung der einen Lamellenhälfte nach außen die andere Lamellenhälfte in die entgegengesetzte Richtung nach außen verstellt wird.It is particularly advantageous if any fraction, preferably one half, of the pairs of plates lying next to one another can be adjusted jointly but independently of the pairs of plates of the other group. This means that at least one half of the emerging air flow can be blown out in an oblique direction and the remaining half in the opposite oblique direction, so that an optimal distribution of the air can be achieved. This is particularly useful for ceiling units. For this purpose, it is also proposed that the slats are coupled to one another in such a way that when one slat half is moved outwards, the other slat half is adjusted in the opposite direction outwards.

Besonders hohe und genau gerichtete Strömungen werden dann erreicht, wenn die Lamellen einen gewölbten Querschnitt aufweisen, wobei die Außenfläche, die den Luftkanal bilden konvex geformt sind. Eine einfache und sichere Befestigungsweise wird dann geschaffen, wenn an den Lamelleninnenseiten längsangeordnete Schraubkanäle angeformt sind.Particularly high and precisely directed flows are achieved when the lamellae have a curved cross section, the outer surface forming the air duct being convex. A simple and secure method of fastening is created when longitudinally arranged screw channels are formed on the inside of the slats.

Luftaustrittsgeschwindigkeit und Vermischung mit der Raumluft werden noch dadurch verbessert, daß die seitlichen Stirnseiten des Zwischenraumes jeden Lamellenpaares offen sind, um Sekundärluft eintreten zu lassen. Hierzu wird auch vorgeschlagen, daß für einen freien Eintritt von Sekundärluft in die Zwischenräume die Lamellenpaare vor dem Auslaß befestigt sind.Air outlet speed and mixing with the room air are further improved in that the lateral end faces of the intermediate space of each pair of lamellae are open in order to allow secondary air to enter. For this purpose, it is also proposed that the pairs of lamellae are fastened in front of the outlet so that secondary air can enter the intermediate spaces freely.

Um besonders weit auseinandergerichtete, insbesondere auch waagerechte Teilluftströme zu erhalten, wird vorgeschlagen, daß die Achsen einer Anzahl, insbesondere einer Hälfte der Lamellen in einer Ebene liegen, die zur Ebene der übrigen Achsen in einem Winkel a liegt. Hierbei kann der Winkel a 30 bis 120°, insbesondere ca. 90° betragen. Um mehr als zwei Teilluftströme zu erhalten, wird vorgeschlagen, daß die Lamellen an den Seiten eines Pyramidenstumpfes angelenkt sind. Alternativ wird vorgeschlagen, daß die Achsen der Lamellen in einer Zylinderfläche liegen.In order to obtain particularly far-apart, in particular also horizontal, partial air flows, it is proposed that the axes of a number, in particular one half, of the lamellae lie in a plane which is at an angle a to the plane of the other axes. The angle a can be 30 to 120 °, in particular approximately 90 ° . In order to obtain more than two partial air flows, it is proposed that the lamellae are articulated on the sides of a truncated pyramid. Alternatively, it is proposed that the axes of the lamellae lie in a cylindrical surface.

Ausführungsbeispiele der Erfindung sind in den Zeichnungen in Querschnitten dargestellt und werden im folgenden näher beschrieben.Embodiments of the invention are shown in cross-sections in the drawings and are described in more detail below.

Es zeigen:

  • Fig. 1 einen senkrechten Schnitt durch eine Luftleitvorrichtung an der Wand eines Raumes mit waagerecht in den Raum gerichtetem Luftstrom;
  • Fig. 2 eine Luftleiteinrichtung nach Figur 1 in einer mittleren Schrägstellung;
  • Fig. 3 eine Luftleiteinrichtung nach Figur 1 und 2 mit maximaler Schrägstellung;
  • Fig. 4 einen senkrechten Schnitt durch eine Luftleiteinrichtung an der Decke eines Raums mit senkrecht nach unten gerichtetem Luftstrom mit maximaler Austrittsgeschwindigkeit;
  • Fig. 5 eine Luftleiteinrichtung nach Figur 4, deren Luftstrom in zwei schräg gestellte Teilluftströme aufgeteilt ist,
  • Fig. 6 eine Luftleiteinrichtung nach Figur 4 oder 5 mit maximaler Schrägstellung der beiden Teilluftströme,
  • Fig. 7 perspektivisch eine weitere Ausführungsform mit rechtwinklig zueinander angeordneten Austrittsöffnungen, wobei die Lamellen beider Austrittsöffnungen einen senkrechten Luftstrom erzeugen;
  • Fig. 8 perspektivisch die Ausführungsform nach Fig. 7 mit einer Lamellenstellung, die zwei waagerechte Luftströme erzeugt,
  • Fig. 9 in Seitenansicht eine der Fig. 7 ähnliche Ausführungsform mit rechtwinklig zueinander angeordneten Austrittsöffnungen, wobei die Lamellen beider Austrittsöffnungen einen senkrechten Luftstrom erzeugen und
  • Fig. 10 in Seitenansicht eine der Fig. 8 ähnliche Ausführungsform mit einer Lamellenstellung, die zwei waagerechte Luftströme erzeugt.
Show it:
  • 1 shows a vertical section through an air guiding device on the wall of a room with an air flow directed horizontally into the room;
  • 2 shows an air guiding device according to FIG. 1 in a middle inclined position;
  • 3 shows an air guiding device according to FIGS. 1 and 2 with maximum inclination;
  • 4 shows a vertical section through an air guiding device on the ceiling of a room with an air flow directed vertically downwards at maximum exit velocity;
  • 5 shows an air guiding device according to FIG. 4, the air flow of which is divided into two inclined partial air flows,
  • 6 shows an air guiding device according to FIG. 4 or 5 with the maximum inclination of the two partial air flows,
  • 7 is a perspective view of a further embodiment with outlet openings arranged at right angles to one another, the lamellae of both outlet openings generating a vertical air flow;
  • 8 is a perspective view of the embodiment according to FIG. 7 with a slat position which generates two horizontal air flows,
  • 9 is a side view of an embodiment similar to FIG. 7 with outlet openings arranged at right angles to one another, the lamellae of both outlet openings generating a vertical air flow and
  • Fig. 10 in side view of an embodiment similar to Fig. 8 with a slat position that generates two horizontal air flows.

Die Vorrichtung weist mehrere Lamellen 1a, 1b auf, die auch Flachprofile, Klappen, Leitbleche, Jalousieprofile genannt werden können und von denen je zwei 1 a, 1 b ein Lamellenpaar 2 bilden. Hierzu sind die Lamellen 1 a, 1 b mit ihrem einen Ende an einer Achse 3 angelenkt. Diese Achse 3 ist auf der der Luftstromquelle zugewandten Seite des Lamellenpaars, so daß die anströmende Luft 4 zuerst auf die Achse 3 auftrifft und danach in Luftkanäle 5 gelangt, die jeweils zwischen den Lamellenpaaren 2 gebildet werden. Damit bilden die einander benachbarten Lamellen 1 a, 1 b zweier verschiedener Lamellenpaare zwischen sich jeweils einen Luftkanal, der in Anströmrichtung 6 zur Außenseite hin sich verjüngt. Die Drehachse ist in Strömungsrichtung mit einem Radius versehen, der eine aerodynamisch günstige Anströmung der Luftkanäle gewährleistet.The device has a plurality of lamellae 1a, 1b, which can also be called flat profiles, flaps, baffles, Venetian blind profiles and of which two 1 a, 1 b each form a pair of lamellae 2. For this purpose, the slats 1 a, 1 b are articulated at one end to an axis 3. This axis 3 is on the side of the pair of fins facing the air flow source, so that the incoming air 4 first hits the axis 3 and then reaches air channels 5, which are each formed between the pairs of fins 2. The mutually adjacent slats 1 a, 1 b of two different pairs of slats each form an air channel between them, which tapers towards the outside in the flow direction 6. The axis of rotation is provided with a radius in the direction of flow, which ensures an aerodynamically favorable flow to the air channels.

Die um die Achse 3 drehverstellbaren Lamellen 1a, 1 können so verstellt werden, daß der Zwischenraum 7 zwischen zwei Lamellen eines Lamellenpaars 2 kleiner wird und der Luftkanal 5 größer als auch der Zwischenraum größer und der Luftkanal 5 entsprechend kleiner. In dem in Figur 1 bis 3 dargestellten Ausführungsbeispiel zeigt die in Figur 1 zu ersehene Stellung eine minimale Breite B der Luftkanäle 5, so daß die hierdurch austretende Luft eine sehr hohe Geschwindigkeit und damit eine große Raumtiefe erreicht. Hierbei ist die Ausströmrichtung 8 gleich oder parallel zur Anströmrichtung 6.The slats 1a, 1, which can be rotated about the axis 3, can be adjusted such that the space 7 between two slats of a pair of slats 2 becomes smaller and the air duct 5 becomes larger and the space larger and the air duct 5 correspondingly smaller. In the exemplary embodiment shown in FIGS. 1 to 3, the position shown in FIG. 1 shows a minimum width B of the air channels 5, so that the air emerging thereby reaches a very high speed and thus a large depth of space. The outflow direction 8 is the same or parallel to the inflow direction 6.

Soll die Ausströmrichtung 8 schräg zur Anströmrichtung 6 sein, so werden die Lamellen 1a nicht um dengleichen Drehwinkel verstellt wie die Lamellen 1 b, sondern eine der beiden Lamellenarten 1 a oder 1 b wird stärker verdreht als die andere, so daß die iri Figur 2 dargestellte schräge Mittelstellung erreicht wird. Aufgrund der größeren Breite B ist hier die Ausströmgeschwindigkeit geringer als bei Figur 1, so daß die geringeren Austrittsgeschwindigkeiten der Zuluft eine geringere Eindringtiefe bewirken. Werden die Lamellen noch stärker in Schräglage verschwenkt, wobei wiederum die Lamellen 1a stärker nach unten entgegen dem Uhrzeigersinn verdreht werden als die Lamellen 1b, so wird die in Figur 3 dargestellte Stellung erzeugt, bei der der größte freie Strömungsquerschnitt (B Maximum) und eine maximale Schrägstellung und damit Ausströmablenkung geschaffen wird. Die erreichte Eindringtiefe ist verhältnismäßig gering aber die Luftumlenkung verhältnismäßig groß.If the outflow direction 8 is to be oblique to the inflow direction 6, the slats 1 a are not adjusted by the same angle of rotation as the slats 1 b, but one of the two slat types 1 a or 1 b is rotated more than the other, so that the iri shown in Figure 2 oblique middle position is reached. Because of the larger width B, the outflow velocity is lower than in FIG. 1, so that the lower outlet velocities of the supply air result in a lower penetration depth. If the fins are pivoted even more in an inclined position, the fins 1a in turn being rotated more counterclockwise downward than the fins 1b, the position shown in FIG. 3 is generated in which the largest free flow cross section (B maximum) and a maximum Inclination and thus outflow deflection is created. The penetration depth achieved is relatively small but the air deflection is relatively large.

Das gleichmäßige Verstellen aller Lamellen 1a, 1b, wobei die Lamellen 1 a jeweils parallel zueinander liegen und gleichmäßig drehverstellt werden und die Lamellen 1 auch stets zueinander parallel verbleiben und um andere Drehwinkel verstellt werden, wird durch ein Gestänge 9 erzeugt, daß aus rechtwinklig zur anströmenden Luft 4 liegenden Stangen 10 und 11 besteht, wobei die Stange 10 alle Lamellen 1 a und die Stange 11 alle Lamellen 1 b über Gelenk 12 miteinander verbindet. Durch diese Befestigungsart ist sichergestellt, daß alle Lamellen 1a dieselben Drehbewegungen ausführen. Das gleiche gilt für die Lamellen 1b. Darüber hinaus ist zumindest eine Lamelle 1 a über eine schräge Gelenkstange 13 mit einer Lamelle 1 verbunden, wobei diese Gelenkstange 13 schräg zur anströmenden Luft und zu den Stangen 10, 11 ist. Damit ist die Anlenkstelle 14 der Stange 13 an der Lamelle 1b in einem unterschiedlichen Abstand A1 als der Abstand A2 der Anienkstelle 15 der Stange 13 an der Lamelle 1a zur Achse 3.The uniform adjustment of all lamellae 1a, 1b, the lamellae 1a each lying parallel to one another and being rotated uniformly and the lamellae 1 also always remaining parallel to one another and being adjusted by other angles of rotation, is produced by a linkage 9 that is perpendicular to the incoming Air 4 lying rods 10 and 11, the rod 10 connecting all the slats 1 a and the rod 11 connecting all the slats 1 b via the joint 12. This type of fastening ensures that all lamellae 1a perform the same rotary movements. The same applies to the slats 1b. In addition, at least one lamella 1a is connected to a lamella 1 via an inclined articulated rod 13, this articulated rod 13 being inclined to the incoming air and to the rods 10, 11. The articulation point 14 of the rod 13 on the lamella 1b is thus at a different distance A1 than the distance A2 between the articulation point 15 of the rod 13 on the lamella 1a and the axis 3.

Die Gelenke und Anlenkstellen können durch Schraubkanäle 16 gebildet sein, die an den Innenseiten der Lamellen angeformt sind. Die Außenflächen der Lamellen 1a, 1 sind konvex geformt, so daß die Luftkanäle düsenförmig arbeiten.The joints and articulation points can be formed by screw channels 16, which are formed on the inside of the lamellae. The outer surfaces of the lamellae 1a, 1 are convex, so that the air channels operate in a nozzle-like manner.

Das Ausführungsbeispiel nach Figuren 4 bis 6 unterscheidet sich von dem nach den Figuren 1 bis 3 dadurch, daß ein Teil 2a der Lamellen zu einer Seite verschwenkbar ist und der andere Teil 2b der Lamellen zur anderen Seite, so daß der anströmende Luftstrom geteilt wird. Ein solches Aufteilen des Luftstroms nach zwei entgegengesetzten Seiten ist besonders dann von Vorteil, wenn der Luftauslaß sich an der Decke eines Raumes oder einer Halle befindet.The exemplary embodiment according to FIGS. 4 to 6 differs from that according to FIGS. 1 to 3 in that part 2a of the slats can be pivoted to one side and the other part 2b of the slats to the other side, so that the inflowing air flow is divided. Such a division of the air flow into two opposite sides is particularly advantageous if the air outlet is on the ceiling of a room or hall.

Bei diesem Ausführungsbeispiel nach Fig. 4 bis 6 ist das Gestänge in jeweils zwei Stangenpaare 10, 11 aufgeteilt, von denen ein Stangenpaar einen Lamellenteil 2a und das andere Stangenpaar den zweiten Lamellenteil 2b steuert. Hierbei sind an den Stangen Betätigungsstangen so angelenkt, daß bei einem Verschwenken der Lamellen eines Teils 2a oder Hälfte der andere Teil 2b oder die andere Hälfte in entgegengesetzter Drehrichtung verschwenkt. Die Lamellen 1a, 1 b eines einzigen Lamellenpaares 2 bilden zwischen sich den Zwischenraum 7, der zu den Stirnseiten hin offen ist, um Sekundärluft eintreten zu lassen. Diese Sekundärluft strömt dann in Ausströmrichtung 8 aus, da sie von der durch die Luftkanäle 5 hindurchströmenden Luft mitgenommen wird. Hierbei ist von Bedeutung, daß der kleinste Freiströmungsquerschnitt des Luftkanals 5 sich weit vorne an den freien Enden der Lamellen 1a, 1b befindet. Um auf besonders einfache Weise einen freien Eintritt von Sekundärluft in die Zwischenräume 7 zu gewährleisten sind die Lamellen so weit vor dem Auslaß eines Gerätes oder eines Luftkanals angeordnet, daß die Stirnseiten frei sind.In this embodiment according to FIGS. 4 to 6, the linkage is divided into two pairs of rods 10, 11, of which one pair of rods controls a lamella part 2a and the other pair of rods controls the second lamella part 2b. Here, actuating rods are articulated on the rods so that when the slats of one part 2a or half are pivoted, the other part 2b or the other half is pivoted in the opposite direction of rotation. The lamellae 1a, 1b of a single pair of lamellae 2 form between them the intermediate space 7, which is open towards the end faces, for secondary purposes to let air in. This secondary air then flows out in the outflow direction 8, since it is carried along by the air flowing through the air channels 5. It is important here that the smallest free flow cross section of the air duct 5 is located far forward at the free ends of the lamellae 1a, 1b. In order to ensure free entry of secondary air into the intermediate spaces 7 in a particularly simple manner, the fins are arranged so far in front of the outlet of a device or an air duct that the end faces are free.

Im Ausführungsbeispiel nach den Figuren 7 und 8 sind eine Hälfte der Lamellen und damit vier Lamellen 1a, 1b am Rand einer ersten Austrittsöffnung 17 befestigt, die 45 ° geneigt zur Eintrittsöffnung 19 liegt, wobei die zweite Austrittsöffnung 18 einen Winkel von 90 ° zur ersten Austrittsöffnung 17 und einen Winkel von 45 0 zur Eintrittsöffnung 19 bildet. Die drei Öffnungen 17, 18, 19 bilden damit ein gerades Prisma mit einem rechtwinkligen und gleichschenkligen Dreieck als Grundfläche. Alternativ können auch vier Austrittsöffnungen vorgesehen sein, die einen Pyramidenstumpf bilden, dessen Grundfläche die Eintrittsöffnung bildet. Hierbei kann die obere zur Eintrittsöffnung parallele Fläche des Stumpfes eine weitere Austrittsöffnung bilden.In the exemplary embodiment according to FIGS. 7 and 8, one half of the lamellae and thus four lamellae 1a, 1b are fastened to the edge of a first outlet opening 17 which is inclined at 45 ° to the inlet opening 19, the second outlet opening 18 being at an angle of 90 ° to the first outlet opening 17 and forms an angle of 45 ° to the inlet opening 19. The three openings 17, 18, 19 thus form a straight prism with a right-angled and isosceles triangle as the base. Alternatively, four outlet openings can also be provided, which form a truncated pyramid, the base of which forms the inlet opening. In this case, the upper surface of the stump parallel to the inlet opening can form a further outlet opening.

In der senkrechten Lamellenstellung nach Figur 7 bilden die Luftströme beider Austrittsöffnungen 17, 18 einen senkrechten Gesamtluftstrom 20 und in der Stellung nach Figur 8 zwei Teilluftströme 21, 22, die waagerecht entgegengesetzt gerichtet sind und damit entlang der Decke einer Halle oder Raumes strömen.In the vertical lamella position according to FIG. 7, the air flows of both outlet openings 17, 18 form a vertical total air flow 20 and in the position according to FIG. 8 two partial air flows 21, 22, which are directed horizontally in opposite directions and thus flow along the ceiling of a hall or room.

Die Ausführungsform nach den Fig. 9 und 10 unterscheidet sich von der nach Fig. 7 und 8 im wesentlichen dadurch, daß die die Lamellen 1a, 13 verbindenden Stangen 10,11,13 dargestellt sind und zwischen den innersten und damit untersten zwei Lamellen im Gehäuseinnern ein rechtwinklig abgebogenes Luftleitblech 23 angeordnet ist, das einen Luftstrom zwischen diesen zwei Lamellen verhindert.The embodiment according to FIGS. 9 and 10 differs from that according to FIGS. 7 and 8 essentially in that the rods 10, 11, 13 connecting the slats 1 a, 13 are shown and between the innermost and thus the lowest two slats in the interior of the housing an air baffle 23 bent at a right angle is arranged, which prevents air flow between these two fins.

Claims (13)

1. A device for guiding an air stream by parallel lamellae (1 a, 1b) which are disposed at the outlet of a device guiding and more particularly producing the air stream, each two lamellae (1 a, 1 b) being rotatably articulated via their lateral longitudinal edges adjacent the source of the air stream to a pivot (3) or to two pivots disposed closely adjacent to one another, to form a pair (2) of lamellae which cooperates with adjacent pairs of lamellae (2) to form air channels (5), whose width can be changed by pivoting the lamellae (1 a, 1 b), characterized in that the lamellae (1 a, 1b) can always be so adjusted by pivoting that with a direction (8) of flow in and to the air channels (5) in the direction of the inflowing air (6) the air channels (5) have a smaller width (b) than in the direction at an inclination to the inflowing air (6), and the lamellae (1 a, 1 b) can be adjusted via a linkage (9, 10, 11), each lamella (1 a) of a pair (2) of lamellae being adjustable independently of the second lamella of the same pair (2).
2. A device according to claim 1, characterized in that each second lamella (1 a) is articulated to a first rod (10) at right angles to the inflowing air, the other lamellae (1 b) being articulated to a second rod (11).
3. A device according to claims 1 or 2, characterized in that one half of the pairs (2) of lamellae disposed one beside the other can be adjusted independently of the pairs (2) of lamellae of the second half.
4. A device according to claim 3, characterized in that the lamellae (1 a, 1 b) are so coupled to one another that when one part (2a) of a lamella is adjusted outwards, the other part (2b) of the lamella is adjusted outwards in the opposite direction.
5. A device according to one of the preceding claims, characterized in that the lamellae (1a, 1b) have an arcuate cross-section, the outer surfaces forming the air channel being convex in shape.
6. A device according to one of the preceding claims, characterized in that longitudinally disposed helical channels (16) are formed on the insides of the lamellae.
7. A device according to one of the preceding claims, characterized in that at least one lamella (1a) of one pair (2) of lamellae is connected via a linkage rod (13) to that lamella (1 b) of another pair (2) of lamellae which is not parallel with the first lamella (1a), the two places (14, 15) of articulation being situated at different distances (A1) and (A2) from the pivots (3).
8. A device according to one of the preceding claims, characterized in that the lateral end faces of the gap (7) between each pair (2) of lamellae are open to admit secondary air.
9. An apparatus according to claim 8, characterized in that for an unobstructed entrance of secondary air into the gaps (7), the pairs (2) of lamellae are attached in front of the outlet.
10. A device according to one of the preceding claims, characterized in that the pivots (3) of a number, more particularly one half of the lamellae (1 a, 1 b) lie in a plane lying at an angle (a) to the plane of the other pivots (3).
11. A device according to claim 10, characterized in that the angle (a) is 30 to 120°, more particularly about 90°.
12. A device according to claims 10 or 11, characterized in that the lamellae (1 a, 1 b) are articulated to the sides of a frustrum.
13. A device according to one of claims 1 to 9, characterized in that the pivots (3) of the lamellae (1a, 1b) lie in a cylindrical surface.
EP87115721A 1986-11-12 1987-10-27 Device for guiding an air stream Expired - Lifetime EP0267486B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87115721T ATE57251T1 (en) 1986-11-12 1987-10-27 DEVICE FOR DIRECTING AN AIR FLOW.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863638614 DE3638614A1 (en) 1986-11-12 1986-11-12 DEVICE FOR CONDUCTING AN AIRFLOW
DE3638614 1986-11-12

Publications (3)

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EP0267486A2 EP0267486A2 (en) 1988-05-18
EP0267486A3 EP0267486A3 (en) 1989-03-15
EP0267486B1 true EP0267486B1 (en) 1990-10-03

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ID=6313759

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EP87115721A Expired - Lifetime EP0267486B1 (en) 1986-11-12 1987-10-27 Device for guiding an air stream

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EP (1) EP0267486B1 (en)
AT (1) ATE57251T1 (en)
DD (1) DD262892A5 (en)
DE (2) DE3638614A1 (en)
ES (1) ES2018230B3 (en)
GR (1) GR3001241T3 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4431314A1 (en) * 1994-09-02 1996-03-07 Ttl Tuer & Torluftschleier Luf Air outlet

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JPH068517Y2 (en) * 1989-03-10 1994-03-02 トヨタ自動車株式会社 Fluctuating wind generator
DE3914241A1 (en) * 1989-04-29 1990-10-31 Happel Gmbh & Co DEVICE FOR CONDUCTING AN AIRFLOW
DE4133734A1 (en) * 1991-10-11 1993-04-22 Gea Happel Klimatechnik AIR HEATING AND / OR COOLING UNIT
IT1260793B (en) * 1992-03-19 1996-04-22 WATERPROOF MODULATING AIR DAMPER WITH FLOW INTERCEPTION
AT400896B (en) * 1992-06-17 1996-04-25 Troges Gmbh Rotatable slat
DE4305928C2 (en) * 1993-02-26 1997-09-11 Rahmer & Jansen Gmbh Device and method for cooling liquid and gaseous media using air
FR2729461B1 (en) * 1995-01-17 1997-04-18 Cerga DEVICE FOR ADJUSTING THE PASSAGE SECTION OF A VENTILATION AIR VENT OF A PREMISES
CN104764182B (en) * 2015-02-13 2018-05-01 广东美的制冷设备有限公司 Shutter mechanism and there is its exhaust apparatus
US10697656B2 (en) * 2015-03-05 2020-06-30 Vornado Air, Llc Air circulator with vein control system

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US2224312A (en) * 1935-01-17 1940-12-10 Preferred Utilities Company In Permanent outlet control device
US2799989A (en) * 1954-09-24 1957-07-23 Peter G Kappus Variable area jet nozzle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4431314A1 (en) * 1994-09-02 1996-03-07 Ttl Tuer & Torluftschleier Luf Air outlet
DE4431314C2 (en) * 1994-09-02 1998-07-02 Ttl Tuer & Torluftschleier Luf Air outlet

Also Published As

Publication number Publication date
ES2018230B3 (en) 1991-04-01
EP0267486A3 (en) 1989-03-15
DD262892A5 (en) 1988-12-14
EP0267486A2 (en) 1988-05-18
DE3638614A1 (en) 1988-05-26
GR3001241T3 (en) 1992-07-30
ATE57251T1 (en) 1990-10-15
DE3765388D1 (en) 1990-11-08

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