EP0414022A2 - Outlet with a vortex flow - Google Patents

Outlet with a vortex flow Download PDF

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Publication number
EP0414022A2
EP0414022A2 EP90115040A EP90115040A EP0414022A2 EP 0414022 A2 EP0414022 A2 EP 0414022A2 EP 90115040 A EP90115040 A EP 90115040A EP 90115040 A EP90115040 A EP 90115040A EP 0414022 A2 EP0414022 A2 EP 0414022A2
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EP
European Patent Office
Prior art keywords
sheet metal
guide vanes
metal plate
connector piece
plate
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.)
Granted
Application number
EP90115040A
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German (de)
French (fr)
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EP0414022A3 (en
EP0414022B1 (en
Inventor
Franz Dipl.-Ing. Weck
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
H Krantz GmbH and Co
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H Krantz GmbH and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by H Krantz GmbH and Co filed Critical H Krantz GmbH and Co
Priority to AT90115040T priority Critical patent/ATE101914T1/en
Publication of EP0414022A2 publication Critical patent/EP0414022A2/en
Publication of EP0414022A3 publication Critical patent/EP0414022A3/en
Application granted granted Critical
Publication of EP0414022B1 publication Critical patent/EP0414022B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • 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

Definitions

  • the invention relates to a swirl passage with guide vanes arranged concentrically around the central axis of a connecting piece that widens in the direction of flow in the direction of flow.
  • Swirl diffusers of this type are generally known and are arranged, for example, in the ceiling area of a room to be ventilated and / or air-conditioned and are connected to an air duct system. Due to the shape of these passages, the emerging air jets receive a high swirl impulse and are thus able to mix intensively with room air before they reach the area where the room is located, so that drafts are avoided there.
  • the swirl diffusers which are proven per se in their mode of operation, are generally made of plastic, preferably by injection molding, and are therefore relatively inexpensive. Swirl diffusers made of plastic, however, have two major disadvantages: On the one hand, the swirl diffusers made of plastic lack sufficient temperature resistance, whereby the diffusers can even catch fire, depending on the plastic used for their manufacture. On the other hand, swirl diffusers made of plastic are difficult to use provided with a coat of paint and can therefore only be adapted to the individual color spectrum of a room with great effort.
  • the invention has for its object to propose a swirl diffuser of the type described above, which can be produced at least as rationally as the known swirl diffusers and also has the advantages that it is characterized both by a high fire resistance and also rational and durable with one individual paint job.
  • each guide vane has at least one projection or recess on its radial outer edge, with which the guide vane is latched into a recess or a projection on the inside of the connecting piece.
  • the projections can be needle-shaped and engage in appropriately designed recesses.
  • recesses provided in the sheet metal socket as openings and initially allowing the projections on the outer edges of the guide vanes to protrude slightly beyond the outer circumference of the sheet metal socket, in order to finally compress or crank them in the manner of a riveted connection.
  • connection types described above makes it possible to arrange the two components relative to one another such that, according to a further embodiment of the invention, the sheet metal plate from which the blades are formed, with the side over which the blades protrude, lies firmly against an end face of the sheet metal socket.
  • a compact design of the swirl passage results from the fact that the outer contour of the sheet metal plate matches the outer contour of the sheet metal socket defined by a collar.
  • Swirl diffusers designed in this way represent an essentially cuboid or disk-shaped structure which, for example, can be easily integrated flush with the ceiling in cassette-shaped recesses.
  • the sheet metal socket and the sheet metal plate can be circular or polygonal, without influencing the simple method of manufacturing the passage.
  • At least two sheet metal plates provided with punched-out guide vanes are arranged one above the other and rotated relative to one another in such a way that the guide vanes of one sheet metal plate penetrate the guide vane punch-outs in the other sheet metal plate and the guide vanes fully cover the guide vane recesses in the projection.
  • laminated plates can be nested with one another with uniformly designed and arranged guide vanes, all that is required is to twist the sheet plates around their center line perpendicular to the plane of the plate over an angle that is smaller than the angle between two adjacent guide vanes, in order to ensure all openings through the projection of the guide vanes to cover completely.
  • the swirl passage consists of a sheet metal plate 1 with tongue-shaped guide vanes 2, which are arranged concentrically about a central axis perpendicular to the plane of the sheet plate 1 at such a distance that a central area 3 and an edge area 4 of the sheet metal plate 1 are retained unchanged by the punching process .
  • the swirl passage consists of a connection piece 5, the cylindrical part 6 of which, with a radius R, merges into an arc in a collar 7 projecting radially outwards.
  • the minimum inner diameter of the nozzle 5 is dimensioned such that sections of the radial outer edges of the guide vanes 2 are pressed against the inner wall of the nozzle 5, while the side of the sheet metal plate 1 facing the nozzle 5 is tight against the end face of the nozzle 5.
  • the connecting piece 5 can either be formed from a sheet metal plate or can also consist of a sheet metal tube, the collar 7 being molded on in the rolling process.
  • the two components of the swirl diffuser according to the invention can thus be produced in a rational manner in a stamping and bending process and, for example, can also be rationally provided with the individually desired color, for example in the immersion process.
  • the square layout of the swirl diffuser allows it to be integrated, for example, flush with the ceiling in cassette-shaped recesses in an architecturally advantageous manner.

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  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Duct Arrangements (AREA)
  • Air-Flow Control Members (AREA)
  • Harvester Elements (AREA)
  • External Artificial Organs (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Electrostatic Spraying Apparatus (AREA)
  • Laminated Bodies (AREA)
  • Adjustable Resistors (AREA)

Abstract

An air passage or outlet for imparting a spin flow to air passing therethrough, is economically produced of only two basic sheet metal components. The sheet metal has a good fire resistance capability and can be easily coated with an individual paint color. One sheet metal component is a sheet metal plate (4) with punched-out tongue-shaped air guide vanes (2) that are arranged at a spacing concentrically around a central axis perpendicular to the plane of the plate (4). A central hub area (3) remains connected to an outer area of plate (4) by spoke-type lands separating the air flow holes. The other sheet metal component of the air passage is a connector piece (5) having, e.g., a cylindrical neck (6) surrounded at its lower end by a collar (7). The inner diameter of the connector piece (5) is so dimensioned that radially outer edges of the guide vanes (2) are held in place by a press-fit against the inner sides of the cylindrical neck of the connector piece (5). The side of the sheet metal plate (4) facing the connector piece (5) bears rigidly against the edge of the neck (6) of the connector piece (5) when the two components are connected to each other.

Description

Die Erfindung betrifft einen Dralldurchlaß mit um die Mittelachse eines sich in Strömungsrichtung diffusorartig erweiternden Stutzens konzentrisch angeordneten Leitschaufeln.The invention relates to a swirl passage with guide vanes arranged concentrically around the central axis of a connecting piece that widens in the direction of flow in the direction of flow.

Derartige Dralldurchlässe sind allgemein bekannt und werden beispielsweise im Deckenbereich eines zu belüftenden und/oder zu klimatisierenden Raumes angeordnet und sind an ein Luftkanalsystem angeschlossen. Durch die Formgestaltung dieser Durchlässe erhalten die austretenden Luftstrahlen einen hohen Drallimpuls und sind dadurch in der Lage, sich intensiv mit Raumluft zu vermischen, bevor sie in den Aufenthaltsbereich des Raumes gelangen, so daß dort Zugerscheinungen vermieden werden.Swirl diffusers of this type are generally known and are arranged, for example, in the ceiling area of a room to be ventilated and / or air-conditioned and are connected to an air duct system. Due to the shape of these passages, the emerging air jets receive a high swirl impulse and are thus able to mix intensively with room air before they reach the area where the room is located, so that drafts are avoided there.

Die an sich in ihrer Funktionsweise bewährten Dralldurchlässe sind in der Regel aus Kunststoff, vorzugsweise im Spritzgußverfahren, hergestellt und dadurch verhältnismäßig preiswert. Dralldurchlässe aus Kunststoff haben jedoch zwei wesentliche Nachteile: Zum einen mangelt es den Dralldurchlässen aus Kunststoff an einer hinreichenden Temperaturbeständigkeit, wobei die Durchlässe je nach dem für ihre Herstellung eingesetzten Kunststoff sogar in Brand geraten können. Zum anderen lassen sich Dralldurchlässe aus Kunststoff nur schwierig mit einem Farbanstrich versehen und können daher nur mit besonders hohem Aufwand dem individuellen Farbenspektrum eines Raumes angepaßt werden.The swirl diffusers, which are proven per se in their mode of operation, are generally made of plastic, preferably by injection molding, and are therefore relatively inexpensive. Swirl diffusers made of plastic, however, have two major disadvantages: On the one hand, the swirl diffusers made of plastic lack sufficient temperature resistance, whereby the diffusers can even catch fire, depending on the plastic used for their manufacture. On the other hand, swirl diffusers made of plastic are difficult to use provided with a coat of paint and can therefore only be adapted to the individual color spectrum of a room with great effort.

Der Erfindung liegt die Aufgabe zugrunde, einen Dralldurchlaß der eingangs beschriebenen Art vorzuschlagen, der sich mindestens ebenso rationell herstellen läßt wie die bekannten Dralldurchlässe und darüber hinaus die Vorteile aufweist, daß er sich sowohl durch eine hohe Feuerwiderstandsfähigkeit auszeichnet als sich auch rationell und dauerhaft mit einem individuellen Farbanstrich versehen läßt.The invention has for its object to propose a swirl diffuser of the type described above, which can be produced at least as rationally as the known swirl diffusers and also has the advantages that it is characterized both by a high fire resistance and also rational and durable with one individual paint job.

Zur Lösung dieser Aufgabe wird von einem Dralldurchlaß der im Oberbegriff des Anspruchs 1 genannten gattungsgemäßen Art ausgegangen, welcher erfindungsgemäß die im kennzeichnenden Teil desselben angegebenen Merkmale aufweist.To solve this problem, a swirl diffuser of the generic type mentioned in the preamble of claim 1 is assumed, which according to the invention has the features specified in the characterizing part of the same.

Zur Herstellung des erfindungsgemäßen Dralldurchlasses sind lediglich zwei Blechteile erforderlich, welche in der erfindungsgemäßen Weise gestanzt und verformt sind und zwei Bauelemente ergeben, die so ineinander verschachtelbar sind, daß sie ohne weitere Hilfsmittel den Dralldurchlaß entstehen lassen.To produce the swirl diffuser according to the invention, only two sheet metal parts are required, which are stamped and deformed in the manner according to the invention and produce two components which can be nested in one another in such a way that they allow the swirl diffuser to be formed without further aids.

Wird die Blechplatte mit den Leitschaufeln von oben aus in einen Blechstutzen eingeführt, reicht es zur Verbindung der Bauelemente aus, wenn sich dieIf the sheet metal plate with the guide vanes is inserted from above into a sheet metal socket, it is sufficient to connect the components if the

Außenkanten der Leitschaufeln mit einer geringen Vorspannung gegen die Innenseite des Blechstutzens anpressen.Press the outer edges of the guide vanes against the inside of the sheet metal socket with a slight preload.

Nach einer Ausgestaltung der Erfindung läßt sich die Verbindung der beiden Bauelemente auch dadurch stabilisieren, daß jede Leitschaufel an ihrer radialen Außenkante mindestens einen Vorsprung oder eine Vertiefung aufweist, womit die Leitschaufel in eine Vertiefung bzw. einen Vorsprung auf der Innenseite des Stutzens eingerastet ist. Die Vorsprünge können nadelspitzenförmig ausgebildet sein und in entsprechend ausgebildete Vertiefungen eingreifen. Es besteht natürlich auch die Möglichkeit, im Blechstutzen vorgesehene Vertiefungen als Durchbrüche auszubilden und die Vorsprünge an den Außenkanten der Leitschaufeln geringfügig über den Außenumfang des Blechstutzens zunächst vorstehen zu lassen, um sie schließlich nach Art einer Nietverbindung zu stauchen oder aber zu kröpfen. Vorteilhaft kann es auch sein, die Vorsprünge an den Außenkanten der Leitschaufeln als flache Zungen auszubilden, um sie nach einer Durchführung durch die entsprechend ausgebildeten Durchbrüche im Blechstutzen leicht zu verdrehen.According to one embodiment of the invention, the connection of the two components can also be stabilized in that each guide vane has at least one projection or recess on its radial outer edge, with which the guide vane is latched into a recess or a projection on the inside of the connecting piece. The projections can be needle-shaped and engage in appropriately designed recesses. Of course, there is also the possibility of designing recesses provided in the sheet metal socket as openings and initially allowing the projections on the outer edges of the guide vanes to protrude slightly beyond the outer circumference of the sheet metal socket, in order to finally compress or crank them in the manner of a riveted connection. It can also be advantageous to design the projections on the outer edges of the guide vanes as flat tongues in order to twist them slightly after they have been passed through the appropriately designed openings in the sheet metal socket.

Jede der vorbeschriebenen Verbindungsarten ermöglicht es, die beiden Bauelemente so zueinander anzuordnen, daß gemäß einer weiteren Ausgestaltung der Erfindung die Blechplatte, aus der die Schaufeln gebildet sind, mit der Seite, über welche die Schaufeln vorstehen, fest gegen eine Stirnseite des Blechstutzens anliegt.Each of the connection types described above makes it possible to arrange the two components relative to one another such that, according to a further embodiment of the invention, the sheet metal plate from which the blades are formed, with the side over which the blades protrude, lies firmly against an end face of the sheet metal socket.

Eine kompakte Ausbildung des Dralldurchlasses ergibt sich gemäß einer weiteren Ausgestaltung der Erfindung dadurch, daß die Außenkontur der Blechplatte mit der durch einen Kragen definierten Außenkontur des Blechstutzens übereinstimmt. So ausgebildete Dralldurchlässe stellen einen im wesentlichen quader-­oder scheibenförmigen Baukörper dar, der sich beispielsweise deckenbündig in kassettenförmigen Aussparungen einfach integrieren läßt.According to a further embodiment of the invention, a compact design of the swirl passage results from the fact that the outer contour of the sheet metal plate matches the outer contour of the sheet metal socket defined by a collar. Swirl diffusers designed in this way represent an essentially cuboid or disk-shaped structure which, for example, can be easily integrated flush with the ceiling in cassette-shaped recesses.

Der Blechstutzen und die Blechplatte können kreisförmig oder aber auch polygonal ausgebildet sein, ohne daß dadurch die einfache Herstellungsweise des Durchlasses beeinflußt wird.The sheet metal socket and the sheet metal plate can be circular or polygonal, without influencing the simple method of manufacturing the passage.

Nach einer besonders vorteilhaften Ausgestaltung der Erfindung sind mindestens zwei mit ausgestanzten Leitschaufeln versehene Blechplatten so übereinander und verdreht zueinander angeordnet, daß die Leitschaufeln der einen Blechplatte die Leitschaufelausstanzungen in der anderen Blechplatte durchdringen und die Leitschaufeln die Leitschaufelaussparungen in der Projektion voll überdecken.According to a particularly advantageous embodiment of the invention, at least two sheet metal plates provided with punched-out guide vanes are arranged one above the other and rotated relative to one another in such a way that the guide vanes of one sheet metal plate penetrate the guide vane punch-outs in the other sheet metal plate and the guide vanes fully cover the guide vane recesses in the projection.

Die vorbeschriebene Ausgestaltung empfiehlt sich deshalb, weil durch die Schrägstellung der aus einerThe design described above is recommended because the inclination of the one

Blechplatte zungenförmig ausgestanzten Leitschaufeln in der Blechplatte Öffnungsquerschnitte entstehen, die größer sind als die Projektion der Leitschaufeln. Diese können daher die in der Blechplatte entstehenden Durchbrüche nicht voll überdecken.Sheet metal plate of guide vanes punched out in a tongue-like manner in the sheet metal plate opening cross-sections that are larger than the projection of the guide vanes. These can therefore not completely cover the openings formed in the sheet metal plate.

Da sich mit gleichförmig ausgebildeten und angeordneten Leitschaufeln verselene Bleche ineinanderschachteln lassen, ist lediglich eine Verdrehung der Blechplatten um ihre zur Plattenebene senkrechte Mittellinie über einer Winkel, der kleiner ist als der Winkel zwischen zwei benachbarten Leitschaufeln, erforderlich, um alle Durchbrüche durch die Projektion der Leitschaufeln voll zu überdecken.Since laminated plates can be nested with one another with uniformly designed and arranged guide vanes, all that is required is to twist the sheet plates around their center line perpendicular to the plane of the plate over an angle that is smaller than the angle between two adjacent guide vanes, in order to ensure all openings through the projection of the guide vanes to cover completely.

In der Zeichnung sind drei Ausführungsbeispiele eines erfindungsgemäßen Dralldurchlasses dargestellt. Es zeigen:

  • Fig. 1 eine Seitenansicht eines kreisförmigen Dralldurchlasses, teilweise im Schnitt;
  • Fig. 2 die Hälfte eines Dralldurchlasses gemäß Fig. 1 im Grundriß;
  • Fig. 3 die Hälfte eines achteckigen Dralldurchlasses im Grundriß;
  • Fig. 4 die Hälfte eines quadratischen Dralldurchlasses im Grundriß.
In the drawing, three exemplary embodiments of a swirl diffuser according to the invention are shown. Show it:
  • Figure 1 is a side view of a circular swirl diffuser, partially in section.
  • Fig. 2 shows half of a swirl diffuser according to Figure 1 in plan.
  • Figure 3 shows half of an octagonal swirl diffuser in plan.
  • Fig. 4 shows half of a square swirl diffuser in plan.

Der Dralldurchlaß besteht aus einer Blechplatte 1 mit zungenförmig daraus ausgestanzten Leitschaufeln 2, die konzentrisch um eine zur Ebene der Blechplatte 1 senkrechte Mittelachse in einem solchen Abstand angeordnet sind, daß ein zentraler Bereich 3 und ein Randbereich 4 der Blechplatte 1 durch den Stanzvorgang unverändert beibehalten wird.The swirl passage consists of a sheet metal plate 1 with tongue-shaped guide vanes 2, which are arranged concentrically about a central axis perpendicular to the plane of the sheet plate 1 at such a distance that a central area 3 and an edge area 4 of the sheet metal plate 1 are retained unchanged by the punching process .

Des weiteren besteht der Dralldurchlaß aus einem Stutzen 5, dessen zylindrischer Teil 6 mit einem Radius R bogenförmig in einem radial nach außen vorstehenden Kragen 7 übergeht. Der minimale Innendurchmesser des Stutzens 5 ist so bemessen, daß Teilstrecken von radialen Außenkanten der Leitschaufeln 2 gegen die Innenwandung des Stutzens 5 gepreßt werden, während die dem Stutzen 5 zugewandte Seite der Blechplatte 1 fest gegen die Stirnseite des Stutzens 5 anliegt.Furthermore, the swirl passage consists of a connection piece 5, the cylindrical part 6 of which, with a radius R, merges into an arc in a collar 7 projecting radially outwards. The minimum inner diameter of the nozzle 5 is dimensioned such that sections of the radial outer edges of the guide vanes 2 are pressed against the inner wall of the nozzle 5, while the side of the sheet metal plate 1 facing the nozzle 5 is tight against the end face of the nozzle 5.

Der Stutzen 5 kann entweder aus einer Blechplatte geformt sein oder auch aus einem Blechrohr bestehen, wobei der Kragen 7 im Walzverfahren angeformt ist.The connecting piece 5 can either be formed from a sheet metal plate or can also consist of a sheet metal tube, the collar 7 being molded on in the rolling process.

Die beiden Bauelemente des erfindungsgemäßen Dralldurchlasses können somit in rationeller Weise in einem Stanz- und Biegeverfahren hergestellt werden und sind beispielsweise im Tauchverfahren ebenso rationell mit der jeweils individuell gewünschten Farbe zu versehen. Der quadratische Grundriß des Dralldurchlasses erlaubt es, diesen beispielsweise deckenbündig in kassettenförmigen Aussparungen in architektonisch vorteilhafter Weise zu integrieren.The two components of the swirl diffuser according to the invention can thus be produced in a rational manner in a stamping and bending process and, for example, can also be rationally provided with the individually desired color, for example in the immersion process. The square layout of the swirl diffuser allows it to be integrated, for example, flush with the ceiling in cassette-shaped recesses in an architecturally advantageous manner.

Claims (6)

1. Dralldurchlaß mit um die Mittelachse eines sich in Strömungsrichtung diffusorartig erweiternden Stutzens konzentrisch angeordneten Leitschaufeln, dadurch gekennzeichnet, daß jede der aus einer Blechplatte (1) zungenförmig ausgestanzten und in Strömungsrichtung um jeweils eine radiale Kante aus der Ebene der Blechplatte (1) herausgebogenen Leitschaufeln (2) über mindestens eine Teilstrecke ihrer radialen Außenkante gegen die Innenseite des gleichfalls aus einer Blechplatte oder einem -rohr hergestellten Stutzens (5) gepreßt ist.1. Swirl passage with guide vanes arranged concentrically around the central axis of a connecting piece that widens in the direction of flow, characterized in that each of the guide vanes is punched out in a tongue-like manner from a sheet metal plate (1) and bent out in the flow direction by one radial edge from the plane of the sheet plate (1) (2) is pressed over at least a portion of its radial outer edge against the inside of the connecting piece (5), which is also made from a sheet metal plate or tube. 2. Dralldurchlaß nach Anspruch 1, dadurch gekennzeichnet, daß jede Leitschaufel (2) an ihrer radialen Außenkante mindestens einen Vorsprung oder eine Vertiefung aufweist, womit die Leitschaufel (2) in eine Vertiefung bzw. einen Vorsprung auf der Innenseite des Stutzens (5) eingerastet ist.2. Swirl diffuser according to claim 1, characterized in that each guide vane (2) has at least one projection or a recess on its radial outer edge, whereby the guide vane (2) snapped into a recess or a projection on the inside of the nozzle (5) is. 3. Dralldurchlaß nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Blechplatte (1), aus der die Leitschaufeln (2) gebildet sind, mit der Seite, über welche die Leitschaufeln (2) vorstehen, fest gegen eine Stirnseite des Blechstutzens (3) anliegt.3. Swirl diffuser according to claim 1 or 2, characterized in that the sheet metal plate (1), from which the guide vanes (2) are formed, with the side over which the guide vanes (2) protrude, firmly against an end face of the sheet metal socket (3 ) is present. 4. Dralldurchlaß nach mindestens einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Außenkontur der Blechplatte (1) mit der durch einen Kragen definierten Außenkontur des Blechstutzens (5) übereinstimmt.4. Swirl diffuser according to at least one of claims 1 to 3, characterized in that the outer contour of the sheet metal plate (1) matches the outer contour of the sheet metal socket (5) defined by a collar. 5. Dralldurchlaß nach mindestens einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Blechstutzen (5) und die Blechplatte (1) kreisförmig oder polygonal ausgebildet sind.5. Swirl diffuser according to at least one of claims 1 to 4, characterized in that the sheet metal socket (5) and the sheet metal plate (1) are circular or polygonal. 6. Dralldurchlaß nach mindestens einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß mindestens zwei mit ausgestanzten Leitschaufeln (2) versehene Blechplatten (1) so übereinander und verdreht zueinander angeordnet sind, daß die Leitschaufeln (2) der einen Blechplatte (1) die Leitschaufelausstanzungen in der anderen Blechplatte (1) durchdringen und die Leitschaufeln (2) die Leitschaufelaussparungen in der Projektion voll überdecken.6. Swirl diffuser according to at least one of claims 1 to 5, characterized in that at least two sheet metal plates (1) provided with punched out guide vanes (2) are arranged one above the other and rotated relative to one another in such a way that the guide vanes (2) of a sheet metal plate (1) are the Penetrate the guide vane cutouts in the other sheet metal plate (1) and the guide vanes (2) fully cover the guide vane recesses in the projection.
EP90115040A 1989-08-23 1990-08-04 Outlet with a vortex flow Expired - Lifetime EP0414022B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90115040T ATE101914T1 (en) 1989-08-23 1990-08-04 SWIVEL PASSAGE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8910061U 1989-08-23
DE8910061U DE8910061U1 (en) 1989-08-23 1989-08-23 Swirl passage

Publications (3)

Publication Number Publication Date
EP0414022A2 true EP0414022A2 (en) 1991-02-27
EP0414022A3 EP0414022A3 (en) 1992-02-26
EP0414022B1 EP0414022B1 (en) 1994-02-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP90115040A Expired - Lifetime EP0414022B1 (en) 1989-08-23 1990-08-04 Outlet with a vortex flow

Country Status (6)

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US (1) US5016525A (en)
EP (1) EP0414022B1 (en)
AT (1) ATE101914T1 (en)
DD (1) DD297226A5 (en)
DE (2) DE8910061U1 (en)
ES (1) ES2049375T3 (en)

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FR2673456A1 (en) * 1991-02-28 1992-09-04 Alsthom Gec AERAULIC NOZZLE FOR COOLING SYSTEM.

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US5807171A (en) * 1996-06-17 1998-09-15 E.H. Price Limited Air diffuser apparatus
US5938525A (en) 1997-07-23 1999-08-17 Tompkins Industries, Inc Air diffuser, and mold and method for its production
US6361432B1 (en) 1999-08-17 2002-03-26 Tomkins Industries, Inc. Air diffuser with air flow regulator
US7011578B1 (en) * 2003-12-31 2006-03-14 R.C. Air Devices, Llc Plenum and diffuser for heating, ventilating and air conditioning applications
US20050164626A1 (en) * 2004-01-26 2005-07-28 Kloostra Marvin L. High mix air diffuser
US7641125B2 (en) * 2005-04-29 2010-01-05 E.H. Price Ltd. Variable air volume ceiling diffuser
EP4001793A1 (en) 2020-11-13 2022-05-25 Viessmann Climate Solutions SE Device for adjusting an air volume flow

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US2672087A (en) * 1950-05-16 1954-03-16 Aladdin Heating Corp Air distributing device
CH636182A5 (en) * 1978-03-06 1983-05-13 Krantz H Gmbh & Co Spin outlet for supplying air into an area to be ventilated
EP0129000A2 (en) * 1983-06-20 1984-12-27 Waterloo Grille Co. Ltd. A diffuser

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* Cited by examiner, † Cited by third party
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SU441438A1 (en) * 1971-03-17 1974-08-30 Проектный Институт "Проектпромвентиляция" Air distributor
SU531001A1 (en) * 1973-07-02 1976-10-05 Предприятие П/Я В-8094 Air distribution nozzles
SU830082A1 (en) * 1979-07-10 1981-05-15 Предприятие П/Я М-5361 Air distributor
SU883615A2 (en) * 1979-10-02 1981-11-23 Центральный Научно-Исследовательский И Проектно-Экспериментальный Институт Инженерного Оборудования Air distributor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2672087A (en) * 1950-05-16 1954-03-16 Aladdin Heating Corp Air distributing device
CH636182A5 (en) * 1978-03-06 1983-05-13 Krantz H Gmbh & Co Spin outlet for supplying air into an area to be ventilated
EP0129000A2 (en) * 1983-06-20 1984-12-27 Waterloo Grille Co. Ltd. A diffuser

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2673456A1 (en) * 1991-02-28 1992-09-04 Alsthom Gec AERAULIC NOZZLE FOR COOLING SYSTEM.
EP0505739A1 (en) * 1991-02-28 1992-09-30 Gec Alsthom Sa Air nozzle for a cooling system

Also Published As

Publication number Publication date
EP0414022A3 (en) 1992-02-26
DD297226A5 (en) 1992-01-02
EP0414022B1 (en) 1994-02-23
US5016525A (en) 1991-05-21
DE8910061U1 (en) 1989-10-19
DE59004665D1 (en) 1994-03-31
ATE101914T1 (en) 1994-03-15
ES2049375T3 (en) 1994-04-16

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