EP0655587B1 - Air supply device - Google Patents

Air supply device Download PDF

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Publication number
EP0655587B1
EP0655587B1 EP94250277A EP94250277A EP0655587B1 EP 0655587 B1 EP0655587 B1 EP 0655587B1 EP 94250277 A EP94250277 A EP 94250277A EP 94250277 A EP94250277 A EP 94250277A EP 0655587 B1 EP0655587 B1 EP 0655587B1
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EP
European Patent Office
Prior art keywords
shut
section
cross
supply device
air supply
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
Application number
EP94250277A
Other languages
German (de)
French (fr)
Other versions
EP0655587A2 (en
EP0655587A3 (en
Inventor
Hans-Jürgen Schöttler
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.)
Lunos-Lueftung & Co Ventilatoren KG GmbH
Original Assignee
Lunos-Lueftung & Co Ventilatoren KG GmbH
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Publication of EP0655587A2 publication Critical patent/EP0655587A2/en
Publication of EP0655587A3 publication Critical patent/EP0655587A3/en
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Publication of EP0655587B1 publication Critical patent/EP0655587B1/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
    • F24F13/08—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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/75—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity for maintaining constant air flow rate or air velocity
    • 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
    • F24F2013/1493—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 an elastic membrane

Definitions

  • the invention claim relates to a supply air device specified in the preamble 1 Art.
  • From DE-OS 20 40 382 is a supply air device for the ventilation of living spaces known, which is arranged transversely in the flow channel guide surfaces for the Has flow medium.
  • an elastic band is provided which is attached to one of its edges and arranged such that it through by the difference between inside and outside the living space prevailing pressure resulting supply air flow against the essentially convex bearing surfaces having guide surfaces moved by pivoting can be and thereby a reduction in the free cross-section within the flow channel of the supply air.
  • the ventilation device has, for example, the disadvantage that the fresh air flow not be influenced directly by external control variables can. Furthermore, the flaps cause disturbing movement noises caused.
  • the invention lies The task is to create an air supply unit of the type mentioned at the beginning, that an improved possibility of influencing the air throughput or a shows reduced noise pollution when regulating the volume flow.
  • the invention includes the knowledge that the effectiveness of a supply air device can be greatly improved if the possibility of embossing one additional manipulated variable is available, which is dependent on another, the Room climate of the parameter to be ventilated is formed. Furthermore, by avoiding hinges or stop surfaces for a Reduction of noise pollution during the function of the shut-off element taken care of.
  • shut-off elements The combination of the properties of an elastic, by a pressure difference directly applied shut-off elements with an air flow influencing device guaranteed by appropriate design measures in a simple way an improved possibility of influencing the Air flow in the sense that next to a position with essentially constant volume throughput, a shut-off can also be achieved, whereby the shut-off position can be recognized from the outside by the corresponding lever position.
  • this is band-shaped trained elastic shut-off element on one of its long sides on the Wall of the flow channel attached.
  • a formed essentially cuboid body which extends over the extends the entire width of the flow channel.
  • This body is preferably made up made of a foamable plastic and has a substantially circular segment-shaped Cross-sectional profile.
  • the use of a foamable plastic ensures in an advantageous manner that the total mass of the elastic Barrier element only enlarged insignificantly.
  • Flow cross section opposite side is on the plastic body sealing lip extending over its entire length is provided.
  • Shut-off element is a flap mounted on a flexible band, which can be pivoted particularly quietly around the storage point.
  • the segment is circular Cross-sectional area of the body formed on the elastic band in this regard changed that the radius of the circle segment in the direction of the closing movement of the shut-off element is reduced.
  • a rotatably mounted shaft is provided, the longitudinal axis of which in extends substantially parallel to the longitudinal axis of the flow channel. She is wearing one of its ends a lever formed as a molded part, which is in radial Direction extends transversely to the longitudinal axis. The lever tapers in the direction of his free end and lies on the molded on the elastic shut-off element Body when it hangs vertically at rest at flow speed Zero). The lever is on the elastic locking element facing side convex shaped so that by turning the shaft over the lever ensures a "soft" action on the molded body is, wherein the elastic shut-off element is pivoted into the closed position becomes.
  • FIGS. 1, 2 and 3 show a preferred embodiment for one according to the invention Supply air unit in different positions depending on the operation represented schematically.
  • the partially elastic shut-off element 3 'extends transversely to the direction of flow is band-shaped and on one of its long sides attached to the wall 4 of the flow channel 5.
  • the hinge area is therefore completely noiseless.
  • the molded body 10 has a cross-sectional profile substantially in shape a segment of a circle.
  • the free end of the molded body 10 carries on the On the inflow side, an elastic sealing lip 9.
  • the molded body 10 consists of conveniently from a foamed plastic or a blown Molding, so that the control valve 3 "has only a very low mass and thereby a sufficiently large sensitivity of the supply air device 1 at the same time quiet operation is guaranteed. With itself more and more closing flap ( Figure 3) the body 10 dips more and more in the Opening area of the passage opening and increasingly closes it.
  • a pivotable shaft 2 ' provided which extends parallel to the longitudinal axis of the flow channel 5. It penetrates the elastic shut-off element at its clamping point the wall 4 of the flow channel 5.
  • the shaft 2 ' has a radial there Direction extending lever 7, which is in place on the molded body 10 is supported, on which this with the elastic shut-off element 3 'is connected ( Figure 1).
  • the control flap 3 is influenced by the air flow 6 around the clamping point of the elastic shut-off elements 3 'pivoted. This swivel movement is through a stop 8 limited in angle, so even with large differential pressure a small flow cross-section is always available for the air passage.
  • the stop 8 is provided on the central section of the shaft 2 '. It stretches transverse to the shaft axis in the direction of the center of the flow channel 5 and arranged rotated by 90 ° relative to lever 7 on the shaft circumference (FIG. 2). With the usual expected wind speeds, the flap does not hit the opening edge so that whistling noises are avoided.
  • Control flap 3 is the sealing lip 9 located at the free end of the body 10 Soft rubber on the stop 11 'effective and closes the flow channel Completely.
  • the body 10 molded onto the elastic shut-off element 3 ' has a cross-section like a segment.
  • the radius R of the Circle segments gradually in the direction of the closing movement. This causes in more convenient that the distance between the stop edge 11 'and arcuate Boundary line 12 of the free end of the body 10 gradually decreases, until the control flap 3 "is in the closed position (variation of the opening width depending on the angular position of the control flap 3 ").
  • FIG. 4 shows a further exemplary embodiment of the ventilation device according to the invention reproduced in an exploded view.
  • An outer housing 101 is shown in a correspondingly prepared wall breakthrough using two as angle irons trained and between the ribs of the housing insertable fastening tapes 102 and 103 locked.
  • the outer housing is made of plastic and is as Injection molded part.
  • the transition to the outer wall is a transition piece 104 and an aperture 105.
  • the latter forms a rain protection and can by means of telescopically extendable transition piece.
  • the latter both parts are also made of plastic.
  • Inserted into the housing becomes a silencer 106 made of a corresponding foam material, which has two passages of square cross section.
  • the control insert 107 acts on the shut-off element by means of suitable drive means 108 which, in the drawing, is in the rest position (passage open, no wind pressure).
  • suitable drive means 108 which, in the drawing, is in the rest position (passage open, no wind pressure).
  • the molded body connected to the shut-off element 109 dips when the shut-off element 108 closes through the passage opening 110 through, the passage cross-section being previously reduced so far, that the one holding the flap in the respective position Volume throughput occurring wind pressure is essentially constant.
  • the volume flow limitation works up to a wind pressure of 300 N / m 2 , corresponding to a wind force component of 10 directed perpendicular to the wall.
  • the embodiment of the invention is not limited to the above specified preferred embodiment. Rather is a number of Variants conceivable, which of the solution shown also in principle makes use of different types.
  • the control section the illustrated supply air device interact with electronic circuits, as shown in other patent applications by the applicant and one Influence of the current cross-section of the supply air opening depending on have different influencing factors to the subject.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Flow Control Members (AREA)
  • Ventilation (AREA)
  • Compressor (AREA)
  • Catching Or Destruction (AREA)
  • Nozzles (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Undergarments, Swaddling Clothes, Handkerchiefs Or Underwear Materials (AREA)
  • Reverberation, Karaoke And Other Acoustics (AREA)
  • Surgical Instruments (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)

Abstract

The invention relates to an air supply device in an air-inlet apparatus for supplying spaces with supply air, having an at least partly elastic shut-off element which is arranged in the flow duct transversely to the flow direction and is fixed in such a way that it is deformed under the effect of the supply-air flow and reduces the free flow cross-section within the flow duct when the pressure difference between the space to be ventilated and the external environment of the space is increased. An additional device (2, 2') for changing the free flow cross-section within the flow duct (5) independently of the prevailing differential pressure is provided, said additional device having a connection to the at least partially elastic shut-off element (3, 3'). <IMAGE>

Description

Die Erfindung Anspruchs betrifft ein Zuluftgerät der im Oberbegriff 1 angegebenen Art.The invention claim relates to a supply air device specified in the preamble 1 Art.

Aus der DE-OS 20 40 382 ist ein Zuluftgerät für die Belüftung von wohnräumen bekannt, welches quer im strömungskanal angeordnete Leitflächen für das Strömungsmedium aufweist. Gleichzeitig ist ein elastisches Band vorgesehen, welches an einem seiner Ränder befestigt und derart angeordnet ist, daß es durch den durch die Differenz zwischen innerhalb und außerhalb des Wohnraums vorherrschenden Drucks entstehenden Zuluftstrom gegen die im wesentlichen konvexe Auflageflächen aufweisenden Leitflächen durch Schwenken bewegt werden kann und dadurch eine Reduzierung des freien Querschnitts innerhalb des strömungskanals der Zuluft bewirkt.From DE-OS 20 40 382 is a supply air device for the ventilation of living spaces known, which is arranged transversely in the flow channel guide surfaces for the Has flow medium. At the same time, an elastic band is provided which is attached to one of its edges and arranged such that it through by the difference between inside and outside the living space prevailing pressure resulting supply air flow against the essentially convex bearing surfaces having guide surfaces moved by pivoting can be and thereby a reduction in the free cross-section within the flow channel of the supply air.

Da das Raumklima in Wohnräumen neben den Eigenschaften der Zuluft auch von einer Anzahl weiterer Parameter bestimmt wird, ist das bekannnte Regelvorrichtung mit dem vorstehend beschriebenen konstruktiven Aufbau des elastischen Absperrelements für die komfortable Belüftung eines Wohnraums nur bedingt geeignet. Because the indoor climate in living rooms in addition to the properties of the supply air also from a known number of other parameters is the known control device with the constructive structure of the elastic shut-off element described above only conditionally suitable for comfortable ventilation of a living space.

Das Belüftungsgerät weist beispielsweise den Nachteil auf, daß der Frischluftstrom nicht über weiterer Steuergrößen auch von extern unmittelbar beeinflußt werden kann. Des weiteren werden von den Klappen störende Bewegungsgeräusche hervorgerufen.The ventilation device has, for example, the disadvantage that the fresh air flow not be influenced directly by external control variables can. Furthermore, the flaps cause disturbing movement noises caused.

Ausgehend von den Mängeln des Standes der Technik liegt der Erfindung die Aufgabe zugrunde, einen zuluftgerät der eingangs genannten Gattung zu schaffen, das eine verbesserte Beeinflussungsmöglichkeit des Luftdurchsatzes bzw. eine verringerte Geräuschbelästigung bei der Regelung des Volumenstroms auweist.Based on the shortcomings of the prior art, the invention lies The task is to create an air supply unit of the type mentioned at the beginning, that an improved possibility of influencing the air throughput or a shows reduced noise pollution when regulating the volume flow.

Diese Aufgabe wird mit den Merkmalen des Anspruchs 1 gelöst. Der Erfindung schließt die Erkenntnis ein, daß die Wirkungsamkeit eines Zuluftgeräts erheblich verbessert werden kann, wenn die Möglichkeit des Aufprägens einer zusätzlichen Stellgröße vorhanden ist, welche in Abhängigkeit eines weiteren, das Raumklima des zu belüftenden Raumes bestimmenden Parameters gebildet wird. Ferner wird durch die Vermeidung von Scharnieren oder Anschlagflächen für eine Verringerung der Geräuschbelästigung bei der Funktion des Absperrelements gesorgt.This object is achieved with the features of claim 1. The invention includes the knowledge that the effectiveness of a supply air device can be greatly improved if the possibility of embossing one additional manipulated variable is available, which is dependent on another, the Room climate of the parameter to be ventilated is formed. Furthermore, by avoiding hinges or stop surfaces for a Reduction of noise pollution during the function of the shut-off element taken care of.

Die Kombination der Eigenschaften eines elastischen, durch eine Druckdifferenz direkt beaufschlagten Absperrelements mit einer die Luftströmung gleichfalls beeinflussenden Vorrichtung durch geeignete konstruktive Maßnahmen gewährleistet auf einfache Weise eine verbesserte Beeinflussungsmöglichkeit der Luftströmung in dem Sinne, daß neben einer Stellung mit im wesentlichen konstanten Volumendurchsatz auch eine Absperrung erreicht werden kann, wobei die Absperrstellung von außen an der entsprechenden Hebelstellung erkennbar ist.The combination of the properties of an elastic, by a pressure difference directly applied shut-off elements with an air flow influencing device guaranteed by appropriate design measures in a simple way an improved possibility of influencing the Air flow in the sense that next to a position with essentially constant volume throughput, a shut-off can also be achieved, whereby the shut-off position can be recognized from the outside by the corresponding lever position.

Mit den erfindungsgemäßem Maßnahmen ist eine bedarfsgerechte Wohnungsbelüftung möglich, die den hohen Anforderungen des heutigen baulichen Wärmeschutzes genügt und eine bedarfsgerechte Lüftung der einzelnen Wohnräume ermöglicht, ohne daß es zu störenden Beeinträchtigungen, wie Lärmbelästigung (Klappern oder Qietschgeräusche) durch die Bewegungsmechanik oder aus der Umgebung sowie störenden zuglufterscheinungen bei Böen oder hohem Winddruck auf der jeweiligen Gebäudeseite.With the measures according to the invention, needs-based ventilation is provided possible that meet the high requirements of today's structural thermal insulation is sufficient and adequate ventilation of the individual living rooms enables without causing disturbing impairments, such as noise pollution (Rattling or squeaking noises) through the movement mechanics or from the Environment as well as disturbing drafts in gusts or high wind pressure on the respective side of the building.

Durch verschiedenste weiter unten und in den Unteransprüchen genannte Maßnahmen wird eine auch bei Böen in allen Regelbereichen geräuscharme Belüftung mit im wesentlichen konstanten Volumenstrom erreicht, bei der auch die Ab-sperrklappe selbst mit ihren Bewegungen keine störende Lärmquelle bildet. By various mentioned below and in the subclaims Measures will be quiet even in gusts in all control areas Ventilation achieved with an essentially constant volume flow, at which also the The butterfly valve itself does not form a disturbing source of noise with its movements.

Nach einer anderen vorteilhafte Ausführungsform der Erfindung ist das bandförmig ausgebildete elastische Absperrungselement an einer seiner Längsseiten an der Wandung des Strömungskanals befestigt. An das entsprechend freie Ende ist ein im wesentlichen quaderförmig ausgebildeter Körper angeformt, der sich über die gesamte Breite des Strömungskanals erstreckt. Dieser Körper besteht vorzugsweise aus einem verschäumbaren Kunststoff und weist ein im wesentlichen kreissegmentförmiges Querschnittsprofil auf. Die Verwendung eines verschäumbaren Kunststoffs gewährleistet in vorteilhafter Weise, daß sich die Gesamtmasse des elastischen Absperrungselements nur unwesentlcih vergrößert. Am Ende der dem zu ändernden Strömungsquerschnitt gegenüberliegenden Seite ist an dem Kunststoffkörper eine sich über dessen gesamte Länge erstreckende Dichtlippe vorgesehen. Diese schmiegt sich an einen, die Größe des Strömungsquerschnitts bestimmenden Anschlag an und gewährleistet, daß der Strömungskanal im Bedarfsfall mit ausreichender Dichtigkeit verschlossen werden kann. Bei diesem Aufbau stellt das Absperrungselement eine an einem flexiblen Band gelagerte Klappe dar, die besonders geräuscharm um den Lagerungspunkt geschwenkt werden kann.According to another advantageous embodiment of the invention, this is band-shaped trained elastic shut-off element on one of its long sides on the Wall of the flow channel attached. At the corresponding free end is a formed essentially cuboid body, which extends over the extends the entire width of the flow channel. This body is preferably made up made of a foamable plastic and has a substantially circular segment-shaped Cross-sectional profile. The use of a foamable plastic ensures in an advantageous manner that the total mass of the elastic Barrier element only enlarged insignificantly. At the end of the to be changed Flow cross section opposite side is on the plastic body sealing lip extending over its entire length is provided. This hugs one that determines the size of the flow cross-section Stop on and ensures that the flow channel with sufficient if necessary Tightness can be closed. With this structure, Shut-off element is a flap mounted on a flexible band, which can be pivoted particularly quietly around the storage point.

Entsprechend einer günstigen Weiterbildung der Erfindung ist die kreissegmentartige Querschnittsfläche des an dem elastischen Band angeformten Körper dahingehend verändert, daß sich der Radius des Kreissegments in Richtung der Schließbewegung des Absperrungselements verringert. Dadurch ergibt sich als wesentlicher Vorteil, daß sich der freie strömungsquerschnitt während des Drosselungsvorgangs (d.h. wenn das elastische Absperrungselement wird manuell, automatisch und/oder durch Wirkung des Differenzdruckes geschwenkt wird) nicht schlagartig, sondern allmählich dert, wenn der angeformte Körper in den zu ändernden Strömungsquerschnitt einzugreifen beginnt. Die damit verbundene größere Stellbereich führt zu einer erheblichen Verbesserung der Regelgenauigkeit. Hierbei ist der Verlauf der gekrümmten Begrenzungslinie des Querschnittprofils des angeformten Körpers ein Maß für die Änderung des wirksamen Radius, der den freien Strömungsquerschnitt zwischen Anschlag und der Unterkante des angeformten Körpers bestimmt, in Abhängigkeit von dem Schwenkwinkel des Absperrungselements. Es hat sich als günstig für das Regelverhalten des Anordnung erwiesen, wenn die gekrümmte Begrenzungslinie die Form einer quadratischen Parabel aufweist.According to a favorable further development of the invention, the segment is circular Cross-sectional area of the body formed on the elastic band in this regard changed that the radius of the circle segment in the direction of the closing movement of the shut-off element is reduced. This results in a major advantage that the free flow cross section during the throttling process (i.e. when the elastic shut-off element is manually, automatically and / or by Effect of the differential pressure is swung) not suddenly, but gradually changes when the molded body in the flow cross-section to be changed intervenes. The associated larger adjustment range leads to a significant improvement in control accuracy. Here is the course of the curved boundary line of the cross-sectional profile of the molded body Measure of the change in the effective radius, the free flow cross section determined between the stop and the lower edge of the molded body, in Dependence on the swivel angle of the shut-off element. It turned out to be proven favorable for the control behavior of the arrangement when the curved Boundary line has the shape of a square parabola.

Für die vorstehend beschriebene Ausführungsform des elastischen Absperrungselements ist als zusätzliche Vorrichtung zur Änderung des freien Strömungsquerschnitts eine drehbar gelagerte Welle vorgesehen, deren Längsachse sich im wesentliche parallel zur Längsachse des Strömungskanals erstreckt. Sie trägt an einem ihrer Enden einen als Formteil ausgebildeten Hebel, welcher sich in radialer Richtung quer zur Längsachse erstreckt. Der Hebel verjüngt sich in Richtng seines freien Endes und liegt auf dem an das elastische Absperrungselement angeformten Körper auf, wenn sich dieser in Ruheposition vertikal hängend bei strömungsgeschwindigkeit Null) befindet. Der Hebel ist an der dem elastischen Absperrungselement zugewandte Seite konvex geformt, so daß durch verdrehen der Welle über den Hebel ein "weicher" Wirkungseingriff auf den angeformten Körper gewährleistet ist, wobei das elastische Absperrungselement in die Schließposition geschwenkt wird.For the embodiment of the elastic shut-off element described above is an additional device for changing the free flow cross section a rotatably mounted shaft is provided, the longitudinal axis of which in extends substantially parallel to the longitudinal axis of the flow channel. She is wearing one of its ends a lever formed as a molded part, which is in radial Direction extends transversely to the longitudinal axis. The lever tapers in the direction of his free end and lies on the molded on the elastic shut-off element Body when it hangs vertically at rest at flow speed Zero). The lever is on the elastic locking element facing side convex shaped so that by turning the shaft over the lever ensures a "soft" action on the molded body is, wherein the elastic shut-off element is pivoted into the closed position becomes.

Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen gekennzeichnet bzw. werden nachstehend zusammen mit der Beschreibung der bevorzugten Ausführung der Erfindung anhand der Figuren näher dargestellt. Es zeigen:

  • Fig. 1 eine bevorzugte Ausführungsform der Erfindung in Längsschnittdarstellung eines Teils des Strömungskanals,
  • Fig. 2 und 3 weitere Darstellungen der in Figur 1 gezeigten Ausführungsform der Erfindung bei unterschiedlichen Positionen des Absperrelements sowie
  • Fig. 4 eine Explosionsdarstellung einer weiteren vorteilhaften Ausführungsform der Erfindung.
Advantageous developments of the invention are characterized in the subclaims or are shown below together with the description of the preferred embodiment of the invention with reference to the figures. Show it:
  • 1 shows a preferred embodiment of the invention in a longitudinal sectional view of a part of the flow channel,
  • FIGS. 2 and 3 further representations of the embodiment of the invention shown in FIG. 1 with different positions of the shut-off element and
  • Fig. 4 is an exploded view of another advantageous embodiment of the invention.

In den Figuren 1, 2 und 3 ist eine bevorzugte Ausführungsform für einen erfin-dungsgemäßen Zuluftgerät in betriebsbedingt unterschiedlichen Positionen schematisiert dargestellt. Das teilelastische Absperrelement 3' erstreckt sich quer zur Strömungsrichtung ist bandförmig ausgebildet und an einer seiner Längsseiten an der Wandung 4 des Strömungskanals 5 befestigt. Das mindestens aus seinem im Scharnierbereich aus Weichgummi bestehende elastische Absperrungselement 3' bildet zusammen mit einem an seinem freien Ende angeformten dreidimensonalen Körper 10 eine durch die Luftströmung um die Einspannkante E auslenkbare Regelklappe 3". Der Scharnierbereich ist damit vollständig geräuschfrei. FIGS. 1, 2 and 3 show a preferred embodiment for one according to the invention Supply air unit in different positions depending on the operation represented schematically. The partially elastic shut-off element 3 'extends transversely to the direction of flow is band-shaped and on one of its long sides attached to the wall 4 of the flow channel 5. At least from his in the hinge area made of soft rubber elastic barrier element 3 'forms together with a three-dimensional sonals molded onto its free end Body 10 a deflectable by the air flow around the clamping edge E. Control flap 3 ". The hinge area is therefore completely noiseless.

Der angeformte Körper 10 weist ein Querschnittsprofil im wesentlichen in Form eines Kreissegments auf. Das freie Ende des angeformten Körpers 10 trägt auf der Anströmseite eine elastische Dichtlippe 9. Der angeformte Körper 10 besteht in günstiger Weise aus einem geschäumten Kunststoff oder einem geblasenen Formteil, so daß die Regelklappe 3" nur eine sehr geringe Masse aufweist und dadurch eine ausreichend große Empfindlichkeit des Zuluftgeräts 1 bei gleichzeitiger geräuscharmer Funktionsweise gewährleistet ist. Bei sich mehr und mehr schließender Klappe (Figur 3) taucht der Körper 10 mehr und mehr in den Öffnungsbereich der Durchlaßöffnung ein und verschließt diese zunehmend. Durch die Form des Körpers und den Verlauf der der Öffnungskante benachbarten Kante 12 bestimmt sich der Restöffnungsquerschnitt in Abhängigkeit von der Position des Absperrelements derart, daß der sich bei dem jeweiligen Winddruck einstellende Volumenstrom durch die entsprechende Stellung des Absperrelements im wesentlichen konstant gehalten wird.The molded body 10 has a cross-sectional profile substantially in shape a segment of a circle. The free end of the molded body 10 carries on the On the inflow side, an elastic sealing lip 9. The molded body 10 consists of conveniently from a foamed plastic or a blown Molding, so that the control valve 3 "has only a very low mass and thereby a sufficiently large sensitivity of the supply air device 1 at the same time quiet operation is guaranteed. With itself more and more closing flap (Figure 3) the body 10 dips more and more in the Opening area of the passage opening and increasingly closes it. By the shape of the body and the course of the edge adjacent to the opening edge 12 determines the residual opening cross section depending on the position of the Shut-off elements in such a way that the one that occurs at the respective wind pressure Volume flow through the corresponding position of the shut-off element in the is kept essentially constant.

Um auf die Regelklappe 3" eine zusätzliche Absperr- oder Regelungsgröße manuell oder automatisch aufprägen zu können, ist eine schwenkbar gelagerte Welle 2' vorgesehen, welche sich parallel zu Längsachse des Strömungskanals 5 erstreckt. Sie durchdringt dabei das elastische Absperrelement an dessen Einspannstelle an der Wandung 4 des Strömungskanals 5. Die Welle 2' weist dort einen sich in radialer Richtung erstreckenden Hebel 7 auf, welcher sich an der Stelle auf dem angeformten Körper 10 abstützt, an welcher dieser mit dem elastischen Absperrelement 3' verbunden ist (Figur 1).To add an additional shut-off or control variable to the control flap 3 " or to be able to emboss automatically, is a pivotable shaft 2 ' provided which extends parallel to the longitudinal axis of the flow channel 5. It penetrates the elastic shut-off element at its clamping point the wall 4 of the flow channel 5. The shaft 2 'has a radial there Direction extending lever 7, which is in place on the molded body 10 is supported, on which this with the elastic shut-off element 3 'is connected (Figure 1).

Die Regelklappe 3" wird unter Einfluß der Luftströmung 6 um die Einspannstelle des elastischen Absperrelements 3' geschwenkt. Diese Schwenkbewegung ist durch einen Anschlag 8 in Winkel begrenzt, wodurch auch bei großem Differenzdruck stets ein geringer Strömungsquerschnitt für den Luftdurchtritt zur Vefügung steht. Der Anschlag 8 ist am Mittelabschnitt der Welle 2' vorgesehen. Er erstreckt sich quer zur Wellenachse in Richtung der Mitte des Strömungskanals 5 und ist gegenüber dem Hebel 7 um 90° verdreht am Wellenumfang angeordnet (Figur 2). Bei den üblicherweise zu erwartenden Windstärken schlägt die Klappe nicht an der öffnungskante an, so daß auch Pfeifgeräusche vermieden sind.The control flap 3 "is influenced by the air flow 6 around the clamping point of the elastic shut-off elements 3 'pivoted. This swivel movement is through a stop 8 limited in angle, so even with large differential pressure a small flow cross-section is always available for the air passage. The stop 8 is provided on the central section of the shaft 2 '. It stretches transverse to the shaft axis in the direction of the center of the flow channel 5 and arranged rotated by 90 ° relative to lever 7 on the shaft circumference (FIG. 2). With the usual expected wind speeds, the flap does not hit the opening edge so that whistling noises are avoided.

Wird die Welle 2' manuell oder durch ein Absperrsignal entgegen dem Uhrzeigersinn um ihre Achse gedreht, so schwenkt die Regelklappe 3" in ihre Schließstellung, da der Körper 10 dem Druck des Hebels 7 auszuweichen versucht. Um einen allmählichen Übergang bei der Krafteinwirkung auf die Regelklappe 3" zu gewährleisten, ist der Hebel 7 einerseits in Richtung seines freien Endes verjüngt und andererseits gleichzeitig auf der Seite, an welcher er mit der Regelklappe in Wirkungseingriff steht, mit einer konvexen Oberflächenkonfiguration versehen. Bei Drehung der Welle 2' wird gleichzeitig die Wirksamkeit des Anschlags 8 reduziert, so daß ein Schwenken der Regelklappe 3" bis 90° möglich ist (Figur 3). In dieser Position der Regelklappe 3" wird die am freien Ende des Körpers 10 befindliche Dichtlippe 9 aus weichgumi an dem Anschlag 11' wirksam und verschließt den Strömungskanal vollständig. Der an das elastische Absperrelement 3' angeformte Körper 10 weist ein kreissegmentartigen Querschnitt auf.If the shaft 2 'manually or by a shut-off signal counterclockwise rotated about its axis, the control flap swings 3 "into its closed position because the body 10 tries to avoid the pressure of the lever 7. Gradual To ensure transition when force is exerted on the control flap 3 " the lever 7 is tapered on the one hand in the direction of its free end and on the other hand at the same time on the side on which he intervenes with the control valve is provided with a convex surface configuration. When the Wave 2 'is simultaneously reduced the effectiveness of the stop 8, so that a Swiveling the control flap 3 "up to 90 ° is possible (Figure 3). In this position the Control flap 3 "is the sealing lip 9 located at the free end of the body 10 Soft rubber on the stop 11 'effective and closes the flow channel Completely. The body 10 molded onto the elastic shut-off element 3 'has a cross-section like a segment.

Um zu gewährleisten, daß sich der freie Strömungsquer-schnitt zwischen Regelklappe 3" und Anschlag 11' nicht sprunghaft ändert, nimmt der Radius R des Kreissegments in Richtung der Schließbewegung allmählich ab. Dies bewirkt in günstiger Weise, daß der Abstand zwischen der Anschlagkante 11' und bogenförmigen Begrenzungslinie 12 des freien Endes des Körpers 10 allmählich abnimmt, bis sich die Regelklappe 3" in Schließstellung befindet (Variation der Öffnungsweite in Abhängigkeit von der Winkelstellung der Regelklappe 3").To ensure that the free flow cross section between Control flap 3 "and stop 11 'does not change abruptly, the radius R of the Circle segments gradually in the direction of the closing movement. This causes in more convenient that the distance between the stop edge 11 'and arcuate Boundary line 12 of the free end of the body 10 gradually decreases, until the control flap 3 "is in the closed position (variation of the opening width depending on the angular position of the control flap 3 ").

In Figur 4 ist ein weiteres Ausführungsbeispiel des erfin-dungsgemäßen Belüftungsgeräts in Explosionsdarstellung wiedergegeben. Ein Außengehäuse 101 wird in einem entspre-chend vorbereiteten Mauerdurchbruch mittels zweier als Winkeleisen ausgebildeter und zwischen Rippen des Gehäuses einlegbarer Befestigungsbänder 102 und 103 arretiert. Das Außengehäuse besteht aus Kunststoff und ist als Spritzteil hergestellt. Den Abschluß zur Außenwand hin bilden ein Übergangsstück 104 und eine Blende 105. Letztere bildet einen Regenschutz und kann mittels des teleskopartig aus-ziehbaren übergangsstücks ausgerichtet werden. Die letztgenannten beiden Teile bestehen ebenfalls aus Kunststoff. In das Gehäuse eingefügt wird ein Schalldämpfer 106 aus einem entsprechenden Schaummaterial, welches zwei Durchlässe von quadratischem Querschnitt aufweist.FIG. 4 shows a further exemplary embodiment of the ventilation device according to the invention reproduced in an exploded view. An outer housing 101 is shown in a correspondingly prepared wall breakthrough using two as angle irons trained and between the ribs of the housing insertable fastening tapes 102 and 103 locked. The outer housing is made of plastic and is as Injection molded part. The transition to the outer wall is a transition piece 104 and an aperture 105. The latter forms a rain protection and can by means of telescopically extendable transition piece. The latter both parts are also made of plastic. Inserted into the housing becomes a silencer 106 made of a corresponding foam material, which has two passages of square cross section.

Der Regeleinsatz 107 wirkt mittels geeigneter Antriebsmittel auf das Absperrelement 108 ein, welches sich in der Zeichnung in Ruhestellung (Durchlaß geöffnet, kein Wind-druck) befindet. Der mit dem Absperrelement verbundene Formkörper 109 taucht bei sich schließendem Absperrelement 108 durch die Durchlaßöffnung 110 hindurch, wobei der Durchlaßquerschnitt vorher jeweils soweit verkleinert wird, daß der bei dem betreffenden, die Klappe in der jeweiligen Stellung haltenden Winddruck auftretende Volumendurchsatz im wesentlichen konstant ist. The control insert 107 acts on the shut-off element by means of suitable drive means 108 which, in the drawing, is in the rest position (passage open, no wind pressure). The molded body connected to the shut-off element 109 dips when the shut-off element 108 closes through the passage opening 110 through, the passage cross-section being previously reduced so far, that the one holding the flap in the respective position Volume throughput occurring wind pressure is essentially constant.

In Richtung auf den Innenraum befindet sich vor dem Regel-einsatz 107 eine Ringblende 111, die ein Staubfilter 112 aufnimmt. Der Luftauslaß ist wiederum durch eine Sicht-blende 113 abgedeckt. Mittels Drehewegung eines hinter der Sichtblende 113 verdeckt angebrachten Betätigungshebels 114 läßt sich ein Riegel 115 mittels einer Drehachse 116 hinter das in seiner Offenstellung geneigte Absperrelement 15 108 schieben, welches damit in eine vertikale Position zwangsgeführt ist, in der das Absperrelement in seiner geschlos-senen Stellung verriegelt ist.There is one in front of the control insert 107 in the direction of the interior Ring diaphragm 111, which receives a dust filter 112. The air outlet is again covered by a screen 113. By turning one behind the Screen 113 concealed operating lever 114 can be a bolt 115 by means of an axis of rotation 116 behind that which is inclined in its open position Push shut-off element 15 108, which is thus positively guided into a vertical position in which the shut-off element locks in its closed position is.

Mit der dargestellten Vorrichtung ist es möglich, nach 20 einem Anstieg der statischen Druckdifferenz ca. 10 N/m2 (Winddruck) den Volumenstrom in einem Bereich von 25 ± 2 m3/h zu halten. Die Volumenstrombegrenzung arbeitet bis zu einem Winddruck von 300 N/m2, entsprechend etwa einer senkrecht zur Wand gerichteten Windstärkenkomponente von 10.With the device shown, it is possible to keep the volume flow in a range of 25 ± 2 m 3 / h after an increase in the static pressure difference of approximately 10 N / m 2 (wind pressure). The volume flow limitation works up to a wind pressure of 300 N / m 2 , corresponding to a wind force component of 10 directed perpendicular to the wall.

Die Erfindung beschränkt sich in ihrer Ausführung nicht auf das vorstehend angegebene bevorzugte Ausführungsbeispiel. Vielmehr ist eine Anzahl von Varianten denkbar, welche von der dargestellten Lösung auch bei grundsätzlich anders gearteten Ausführungen Gebrauch macht. Inbesondere kann der Regelteil des dargestellten Zuluftgeräts mit elektronischen Schaltungen zusammenwirken, wie sie in anderen Patent-anmeldungen der Anmelderin dargestellt sind und eine Beein-flussung des aktuellen Querschnitts der Zuluftöffnung in Abhängigkeit von verschiedenen Einflußgrößen zum Gegenstand haben.The embodiment of the invention is not limited to the above specified preferred embodiment. Rather is a number of Variants conceivable, which of the solution shown also in principle makes use of different types. In particular, the control section the illustrated supply air device interact with electronic circuits, as shown in other patent applications by the applicant and one Influence of the current cross-section of the supply air opening depending on have different influencing factors to the subject.

Claims (8)

  1. An air supply device (1) which is to be fitted in a wall opening for the ventilation of a room, comprising a shut-off element (3"; 108) which is provided in the flow passage transversely with respect to the direction of flow of the feed air (6) and which has at least one elastic region and which on the feed air side has a surface which is exposed to the wind pressure and the projection of which on to the cross-sectional plane of the flow passage is increased with increasing wind pressure, wherein the elastic region is increasingly biased from a relaxed position, producing a corresponding return force, and the free opening cross-section of an opening adjacent to the shut-off element (3"; 108) within the flow passage (5) is reduced for the purposes of limiting the volume flow, characterised in that connected to the shut-off element (3"; 108) is a three-dimensional shaped body (10; 109) which with increasing wind pressure with the movement of the shut-off element (3"; 108) towards the opening at least partially passes into same and increasingly fills the cross-section thereof.
  2. An air supply device according to claim 1 characterised in that the shut-off element (3") is in the form of a flap mounted on a flexible band (3').
  3. An air supply device according to claim 1 or claim 2 characterised in that the shaped body (10; 109) extends over the width of the flow passage and is of a cross-section which is substantially in the form of a segment of a circle.
  4. An air supply device according to one of the preceding claims characterised in that the shut-off element (3"; 108) with the shaped body (10; 109) hangs vertically in the flow passage (5) when there is no wind pressure and pivots towards the horizontal with an increasing wind pressure.
  5. An air supply device according to one of the preceding claims characterised in that the elastic region (3') produces a progressive return force with increasing movement of the shut-off element (3") towards the opening, wherein in particular the return force of the shut-off element (3") is substantially greater than the corresponding action of the force of gravity.
  6. An air supply device according to one of the preceding claims characterised in that the plane of the largest opening cross-section is inclined relative to the perpendicular and the shut-off element (3"; 108) is angled in such a way that in the closed position it assumes a position of substantially covering the cross-section of the opening.
  7. An air supply device according to one of the preceding claims characterised in that mounted at the free end of the shaped body (10) is a sealing lip (9) which extends over the entire length thereof.
  8. An air supply device according to one of the preceding claims characterised in that the shaped body (10; 109) respectively fills the opening in such a way that the remaining free cross-section thereof is of such a dimension that the volume flow (6) passing the free cross-section of the opening at the wind pressure which produces the corresponding position of the shut-off element (3"; 108) is substantially constant.
EP94250277A 1993-11-25 1994-11-17 Air supply device Expired - Lifetime EP0655587B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4340800 1993-11-25
DE4340800A DE4340800A1 (en) 1993-11-25 1993-11-25 Supply air device

Publications (3)

Publication Number Publication Date
EP0655587A2 EP0655587A2 (en) 1995-05-31
EP0655587A3 EP0655587A3 (en) 1996-06-05
EP0655587B1 true EP0655587B1 (en) 2002-07-31

Family

ID=6503813

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94250277A Expired - Lifetime EP0655587B1 (en) 1993-11-25 1994-11-17 Air supply device

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EP (1) EP0655587B1 (en)
AT (1) ATE221638T1 (en)
DE (2) DE4340800A1 (en)
NO (1) NO944387L (en)
RU (1) RU94041202A (en)

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Publication number Priority date Publication date Assignee Title
DE10226325C1 (en) * 2002-06-11 2003-07-17 Ingo Bruchhold Window for ventilation system has additional opening device allowing opening of window barred at its first opening side, opening with relative movement between window casement and window frame

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FR2738901B1 (en) * 1995-09-20 1997-11-21 Abb Flakt IMPROVED AIR FLOW REGULATOR DEVICE
BE1011044A5 (en) * 1997-03-14 1999-04-06 Renson N V Facility for adjusting the airflow in a ventilation device
DE19854016C2 (en) * 1998-11-12 2003-06-05 Ingo Bruchhold ventilation system
NL1011238C2 (en) * 1999-02-08 2000-08-10 Zwaan Adrianus J Ventilation system.
DE19914103C2 (en) * 1999-03-22 2003-04-10 Ingo Bruchhold Ventilation and heating system
EP1314936A3 (en) * 2001-11-22 2005-01-05 Gebrüder Trox, Gesellschaft mit beschränkter Haftung Air flow regulator
DE10337606A1 (en) * 2003-08-16 2005-03-10 Volkswagen Ag Air passage for automotive air conditioning system has two noise silencing parallel foam rubber flaps with embossed hinges
DE202004004432U1 (en) 2004-03-16 2004-07-15 LUNOS Lüftungstechnik GmbH für Raumluftsysteme Facade element for supply and exhaust air
RS51089B (en) * 2006-06-15 2010-10-31 Jovan BABIĆ Insertion piece against return of smells from ventilation holes
FR2920223B1 (en) * 2007-08-24 2015-09-11 Conseils Etudes Et Rech S En Gestion De L Air Cerga SELF-ADJUSTABLE VENTILATION MOUTH WITH CONTROLLED ADJUSTMENT SHUTTER
DE202011104795U1 (en) 2011-08-19 2011-11-30 Peter Mader Wind protection panel
CN106949541A (en) * 2017-03-30 2017-07-14 广东美的制冷设备有限公司 Air ducting, wind-guiding control method and air-conditioner

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US2787288A (en) * 1953-09-02 1957-04-02 Buensod Stacey Inc Flow control devices
FR2030547A6 (en) * 1969-08-13 1970-11-13 Etu Rech Ventil Aerau
NL8802196A (en) * 1988-09-06 1990-04-02 Tno SELF-CONTROLLING VENTILATION GRILL.
NL9100392A (en) * 1991-03-05 1992-10-01 Tno SELF-CONTROLLING VENTILATION GRILL.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10226325C1 (en) * 2002-06-11 2003-07-17 Ingo Bruchhold Window for ventilation system has additional opening device allowing opening of window barred at its first opening side, opening with relative movement between window casement and window frame

Also Published As

Publication number Publication date
DE59410161D1 (en) 2002-09-05
ATE221638T1 (en) 2002-08-15
EP0655587A2 (en) 1995-05-31
NO944387D0 (en) 1994-11-16
NO944387L (en) 1995-05-26
EP0655587A3 (en) 1996-06-05
DE4340800A1 (en) 1995-06-01
RU94041202A (en) 1996-09-20

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