EP0615102A1 - Air transfer system - Google Patents

Air transfer system Download PDF

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Publication number
EP0615102A1
EP0615102A1 EP94103112A EP94103112A EP0615102A1 EP 0615102 A1 EP0615102 A1 EP 0615102A1 EP 94103112 A EP94103112 A EP 94103112A EP 94103112 A EP94103112 A EP 94103112A EP 0615102 A1 EP0615102 A1 EP 0615102A1
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EP
European Patent Office
Prior art keywords
throttle valve
axis
rotation
guidance system
longitudinal axis
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.)
Withdrawn
Application number
EP94103112A
Other languages
German (de)
French (fr)
Inventor
Gottfried Müller
Paul Hipp
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.)
Schako KG
Original Assignee
Schako Metallwarenfabrik Ferdinand Schad KG
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 Schako Metallwarenfabrik Ferdinand Schad KG filed Critical Schako Metallwarenfabrik Ferdinand Schad KG
Publication of EP0615102A1 publication Critical patent/EP0615102A1/en
Withdrawn legal-status Critical Current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
    • F24F13/08—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
    • F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
    • 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
    • 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
    • F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
    • F24F2013/1433—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means with electric motors
    • 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
    • F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
    • F24F2013/1473—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means with cams or levers

Definitions

  • the invention relates to an air duct system with a pipe section, in which a throttle valve rotatably mounted about an axis of rotation is arranged, the axis of rotation being associated with a force accumulator which moves the throttle valve against the air flow in the open position.
  • Such an arrangement is known for example from DE-OS 39 17 360 or DE-OS 41 35 758. It serves to regulate the air flow within an air duct system. This is done by rotating the throttle valve about the axis of rotation, the throttle valve more or less closing the free cross section within the pipe section.
  • the previously known devices for regulating the position of the throttle valve have the disadvantage that the regulation takes place only between two end positions, which ensure a maximum and a minimum air flow.
  • the maximum air flow is given when the throttle valve is approximately in the plane of the longitudinal axis of the pipe section located.
  • the minimum air flow depends on the energy accumulator, with the previously known systems not closing the pipe cross-section as much as possible, since the throttle valve always remains at an angle to the longitudinal axis. This is mainly due to the fact that the setting of the throttle valve during the operation of the air guidance system cannot be rigid, for example by means of a motor, but it is desired that the throttle valve can also adapt to differences in air flow quantities.
  • the force accumulator is therefore designed in such a way that the throttle valve changes continuously during operation of the air guidance system depending on the strength of the air flow, although the force accumulator leads back to a desired position. Damping of the throttle valve movement is usually carried out using a known damper.
  • the present invention has for its object to provide an air duct system of the above. To develop a way in which the control of the throttle valve movement is significantly improved and expanded.
  • a device is assigned to the axis of rotation which closes the throttle valve against the force of the energy accumulator.
  • the device for the final closing of the throttle valve should consist of a simple mechanical linkage so that the effort is kept as low as possible.
  • a push rod is therefore chosen which extends approximately in the direction of the longitudinal axis and engages with a hook in an adjusting disc, the adjusting disc in turn being placed on the axis of rotation.
  • the adjusting disk has the advantage that it also enables a connection to the damper described above and / or to the energy accumulator.
  • the pressure rod is acted upon by a pressure leg of a rotary lever, which rotary lever in turn rotates about a rotary pin.
  • the rotary lever protrudes in the direction of travel of a carriage, which strikes this rotary lever near its end position and rotates the rotary lever around the rotary pin, so that the pressure leg pressurizes the push rod.
  • the hook on the adjusting disc is eccentric to the center of the axis of rotation for the throttle valve in a position in which it guides the throttle valve into the final closed position.
  • This position is preferably arranged in a plane perpendicular to the above-mentioned longitudinal axis of the pipe section. That is, the hook follows the plane of the throttle valve during its eccentric rotary movement about the center of the axis of rotation. The most favorable leverage ratio is always achieved.
  • the application of the rotary lever to close the throttle valve is preferably carried out via a slide, which in turn is connected to a perforated strip, which is described for example in DE-OS 39 17 360.
  • This perforated strip engages with its holes with the teeth of a gear segment, which gear segment in turn is seated on a shaft of an engine.
  • a volume flow controller 2 is seated on a pipe section 1 of an air routing or air conditioning system, not shown.
  • This volume flow controller 2 essentially consists of an actual setting device 3 and a controller 4.
  • a throttle valve (not shown in detail) in the pipe section 1 is operated, which can be round or oval, depending on the cross section of the pipe section 1, or can take on a different geometric shape.
  • the throttle valve rotates about an axis of rotation 5.
  • the adjusting shaft 6 is placed on the axis of rotation 5, the adjusting disk 6 being coupled in a rotationally fixed manner to the axis of rotation 5.
  • the adjusting disc 6 is connected via a tension element 7, for example a ball chain, to a spring strip 8 and at its free end 9, opposite which an end, not shown in more detail, is fixed to a side wall 10 of a housing 11 for the adjusting device 3 .
  • the free end 9 of the spring strip 8 can lift off the side wall 10 in the y direction, the adjusting disc 6 then rotating in the z direction about the axis of rotation 5 and the throttle valve closes.
  • Such a position of the spring strip 8 is indicated by dashed lines.
  • the spring strip 8 is released by moving a slide 12 in the direction x, since the spring strip 8 is guided in a channel 13 of the slide 12, which is only indicated by dashed lines. If the carriage 12 is displaced in the direction x, more and more of the spring strip 8 is released, so that this spring strip 8 can yield to a train of the tension element 7. As a result, the throttle valve can in turn close more and more of the free cross section of the pipe section 1.
  • a rotary lever 15 which is arranged on a pivot pin 16.
  • This rotary lever 15 has a pressure leg 17 which strikes the rear end of a push rod 18.
  • This push rod 18 is on the one hand near the pressure leg 17 in a guide profile 19 slidably mounted against the direction x and on the other hand engages with a hook 20 in a hole in the adjusting disc 6.
  • the push rod 18 rests on a stop roller 21, which is also seated in the adjusting disc 6. Furthermore, the hook 20 is connected eccentrically to the axis of rotation 5 with the adjusting disc 6, so that after rotation of the adjusting disc 6 about the axis of rotation 5 in the direction of rotation z when the throttle valve is closed, a favorable force ratio for the push rod 18 is produced by the position of the Hook 20 is reached in the position then reached below the axis of rotation 5, wherein a connection of the tension element 7 with the adjusting disc 6 is above the axis of rotation 5.
  • the hook 20 is in the open position of the throttle valve shown in FIG. 2 approximately in the plane of the opened throttle valve, which is indicated by the dash-dotted longitudinal axis A of the pipe section 1.
  • This longitudinal axis A passes through a center M of the axis of rotation 5.
  • the hook 20 is in a plane which runs approximately perpendicular to the longitudinal axis A through the center M.
  • the carriage 12 is otherwise connected to a perforated strip 22 by means of profile strips (not shown in more detail), the corresponding holes 23 in the perforated strip 22 being able to be brought into engagement with a toothing 24 of a gearwheel segment 25.
  • the gear segment 25 is placed on a rotary shaft 26 which is connected to a motor (not shown in detail) in the controller 4. If the motor is started, it rotates the rotary shaft 26, the gear segment 25 displacing the perforated strip 22 in the direction x.
  • the perforated strip 22 takes the carriage 12 with it.
  • perforated strip 22 there is a scale 27 by means of which the position of the slide 12 can be read. Connecting elements between perforated strip 22 and slide 12 are identified by 28.
  • this ball chain is connected to the adjusting disk 6 by inserting the last ball into a slot 29. Near this slot 29 is the adjusting disk 6 via a rod 31 inserted into the adjusting disk 6 with a hook 30 connected to a damper 32.
  • This damper 32 is shown in DE-OS 41 35 758 and is therefore not described in detail here.
  • the damper 32 is connected on one side via shaft stub 33 to a mounting bracket 34, which in turn is fastened to the housing 11.
  • the task of the damper 32 is to counteract differences in the air flow within the pipe section 1, so that fluttering of the throttle valve is substantially avoided.

Abstract

In an air transfer system having a tube length (1) in which there is arranged a throttle flap which is rotatably mounted about a pivot shaft (5), the pivot shaft (5) is to be assigned an energy store (8). The latter moves the throttle flap against an air flow into the open position. The pivot shaft (5) is assigned a device which closes the throttle flap against the force of the energy store (8). <IMAGE>

Description

Die Erfindung betrifft ein Luftführungssystem mit einem Rohrabschnitt, in welchem eine um eine Drehachse drehbar gelagerte Drosselklappe angeordnet ist, wobei der Drehachse ein Kraftspeicher zugeordnet ist, der die Drosselklappe gegen den Luftstrom in Öffnungslage bewegt.The invention relates to an air duct system with a pipe section, in which a throttle valve rotatably mounted about an axis of rotation is arranged, the axis of rotation being associated with a force accumulator which moves the throttle valve against the air flow in the open position.

Eine derartige Anordnung ist beispielsweise aus der DE-OS 39 17 360 oder der DE-OS 41 35 758 bekannt. Sie dient dazu, den Luftstrom innerhalb eines Luftführungssystems zu regeln. Dies geschieht durch ein Drehen der Drosselklappe um die Drehachse, wobei die Drosselklappe den freien Querschnitt innerhalb des Rohrabschnittes mehr oder weniger schließt.Such an arrangement is known for example from DE-OS 39 17 360 or DE-OS 41 35 758. It serves to regulate the air flow within an air duct system. This is done by rotating the throttle valve about the axis of rotation, the throttle valve more or less closing the free cross section within the pipe section.

Die bislang bekannten Einrichtungen zum Regeln der Stellung der Drosselklappe haben den Nachteil, daß die Regelung nur zwischen zwei Endlagen erfolgt, welche einen maximalen und einen minimalen Luftstrom gewährleisten. Der maximale Luftstrom ist dann gegeben, wenn die Drosselklappe sich in etwa in der Ebene der Längsachse des Rohrabschnittes befindet. Der minimale Luftstrom hängt dagegen von dem Kraftspeicher ab, wobei bei den bisher bekannten Systemen kein maximal mögliches Schließen des Rohrquerschnittes erfolgt, da die Drosselklappe immer in einem Winkel zur Längsachse stehen bleibt. Dies liegt vor allem daran, daß die Einstellung der Drosselklappe während des Betriebs des Luftführungssystems nicht starr, beispielsweise mittels eines Motors, erfolgen kann, sondern gewünscht wird, daß sich die Drosselklappe auch Unterschieden in Luftstrommengen anpassen kann. Daher ist der Kraftspeicher so ausgelegt, daß sich die Drosselklappe laufend während dem Betrieb des Luftführungssystems je nach Stärke des Luftstromes verändert, wobei allerdings eine Rückführung in eine gewünschte Lage durch den Kraftspeicher erfolgt. Eine Dämpfung der Drosselklappenbewegung wird meist mittels eines bekannten Dämpfers durchgeführt.The previously known devices for regulating the position of the throttle valve have the disadvantage that the regulation takes place only between two end positions, which ensure a maximum and a minimum air flow. The maximum air flow is given when the throttle valve is approximately in the plane of the longitudinal axis of the pipe section located. The minimum air flow, on the other hand, depends on the energy accumulator, with the previously known systems not closing the pipe cross-section as much as possible, since the throttle valve always remains at an angle to the longitudinal axis. This is mainly due to the fact that the setting of the throttle valve during the operation of the air guidance system cannot be rigid, for example by means of a motor, but it is desired that the throttle valve can also adapt to differences in air flow quantities. The force accumulator is therefore designed in such a way that the throttle valve changes continuously during operation of the air guidance system depending on the strength of the air flow, although the force accumulator leads back to a desired position. Damping of the throttle valve movement is usually carried out using a known damper.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein Luftführungssystem der o.g. Art zu entwickeln, bei welchem die Steuerung der Drosselklappenbewegung wesentlich verbessert und erweitert wird.The present invention has for its object to provide an air duct system of the above. To develop a way in which the control of the throttle valve movement is significantly improved and expanded.

Zur Lösung dieser Aufgabe führt, daß der Drehachse eine Einrichtung zugeordnet ist, welche die Drosselklappe gegen die Kraft des Kraftspeichers schließt.To achieve this object, a device is assigned to the axis of rotation which closes the throttle valve against the force of the energy accumulator.

Dies bedeutet, daß nicht nur ein maximaler und ein minimaler Volumenstrom, letzterer je nach Kraft des Luftstromes und Gegenkraft des Kraftspeichers, zugelassen wird, sondern, daß es schlußendlich auch in einer weiteren Endlage zum Schließen des Klappenflügels kommt. In dieser Schließlage soll der Klappenflügel den Rohrabschnitt möglichst weitgehend verschließen, was natürlich nicht bedeutet, daß ein luftdichter Abschluß stattfindet. Zwischen der Drosselklappe und der Innenwand des Rohrabschnittes wird es immer kleine Spalte geben, die auch bewußt offengehalten werden, damit eine geringe Leckluftmenge in die Räume fließen kann. Hierdurch findet ein sehr geringer Luftaustausch statt, wodurch ein Lüften der Räume, beispielsweise nachts, erfolgt, so daß in den Räumen kein "Mief" entsteht. Dieser geringe Luftaustausch ist aber so gering, daß es weder, wie bei den bisher bekannten Systemen, zu Zugerscheinungen noch zu einem unerwünscht hohen Wärmeverlust durch die Stellung der Drosselklappe kommt.This means that not only a maximum and a minimum volume flow, the latter depending on the force of the air flow and counterforce of the energy accumulator, is permitted, but that in the end there is also a further end position for closing the flap wing. In this closed position the flap should close the pipe section as much as possible, which of course does not mean that an airtight seal takes place. There will always be small gaps between the throttle valve and the inner wall of the pipe section, which are also deliberately kept open so that a small amount of leakage air enters the rooms can flow. This results in very little air exchange, which means that the rooms are ventilated, for example at night, so that there is no "flaw" in the rooms. This low air exchange is so low, however, that there are neither draft phenomena nor an undesirably high heat loss due to the position of the throttle valve, as in the previously known systems.

Bevorzugt soll die Einrichtung zum endgültigen Schließen der Drosselklappe aus einem einfachen mechanischen Gestänge bestehen, damit der Aufwand so gering wie möglich gehalten wird. Gewählt wird deshalb eine Druckstange, die in etwa in Richtung der Längsachse verläuft und mit einem Haken in eine Stellscheibe eingreift, wobei die Stellscheibe wiederum der Drehachse aufgesetzt ist. Die Stellscheibe hat dabei den Vorteil, daß sie gleichzeitig auch eine Verbindungsmöglichkeit zu dem oben beschriebenen Dämpfer und/ oder auch zu dem Kraftspeicher ermöglicht.Preferably, the device for the final closing of the throttle valve should consist of a simple mechanical linkage so that the effort is kept as low as possible. A push rod is therefore chosen which extends approximately in the direction of the longitudinal axis and engages with a hook in an adjusting disc, the adjusting disc in turn being placed on the axis of rotation. The adjusting disk has the advantage that it also enables a connection to the damper described above and / or to the energy accumulator.

Jenseits des Hakens wird die Druckstange von einem Druckschenkel eines Drehhebels beaufschlagt, wobei dieser Drehhebel wiederum um einen Drehbolzen dreht. Der Drehhebel ragt dabei in eine Laufrichtung eines Schlittens ein, der nahe seiner Endlage auf diesen Drehhebel auftrifft und den Drehhebel um den Drehbolzen dreht, so daß der Druckschenkel die Druckstange mit Druck beaufschlagt. In dieser Lage befindet sich der Haken an der Stellscheibe exzentrisch zum Mittelpunkt der Drehachse für die Drosselklappe in einer Position, in der er die Drosselklappe in die endglültige Schließlage führt. Diese Position ist bevorzugt in einer Ebene senkrecht zu der o. g. Längsachse des Rohrabschnittes angeordnet. D.h., der Haken folgt bei seiner exzentrischen Drehbewegung um den Mittelpunkt der Drehachse der Ebene der Drosselklappe. Damit wird immer das günstigste Hebelverhältnis erreicht.Beyond the hook, the pressure rod is acted upon by a pressure leg of a rotary lever, which rotary lever in turn rotates about a rotary pin. The rotary lever protrudes in the direction of travel of a carriage, which strikes this rotary lever near its end position and rotates the rotary lever around the rotary pin, so that the pressure leg pressurizes the push rod. In this position, the hook on the adjusting disc is eccentric to the center of the axis of rotation for the throttle valve in a position in which it guides the throttle valve into the final closed position. This position is preferably arranged in a plane perpendicular to the above-mentioned longitudinal axis of the pipe section. That is, the hook follows the plane of the throttle valve during its eccentric rotary movement about the center of the axis of rotation. The most favorable leverage ratio is always achieved.

Die Beaufschlagung des Drehhebels zum Schließen der Drosselklappe erfolgt bevorzugt über einen Schlitten, der wiederum mit einer Lochleiste in Verbindung steht, die beispielsweise in der DE-OS 39 17 360 beschrieben ist. Diese Lochleiste steht mit ihren Löchern mit der Zahnung eines Zahnradsegmentes in Eingriff, wobei dieses Zahnradsegment wiederum einer Welle eines Motors aufsitzt.The application of the rotary lever to close the throttle valve is preferably carried out via a slide, which in turn is connected to a perforated strip, which is described for example in DE-OS 39 17 360. This perforated strip engages with its holes with the teeth of a gear segment, which gear segment in turn is seated on a shaft of an engine.

Auf diese einfache Art und Weise ist es möglich, mit dem Stellmotor abends die Drosselklappe in eine Schließstellung zu bringen, bei der die Räume nicht auskühlen können, bei der jedoch ein sehr geringer Luftauslaß zum Lüften der Räume stattfindet.In this simple way it is possible to bring the throttle valve into a closed position in the evening, in which the rooms cannot cool down, but in which there is a very small air outlet for ventilating the rooms.

Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung eines bevorzugten Ausführungsbeispiels sowie anhand der Zeichnung; diese zeigt in

  • Fig. 1 eine Seitenansicht eines erfindungsgemäßen Volumenstromreglers, montiert auf einem Rohrabschnitt eines entsprechenden Luftführungssystems;
  • Fig. 2 eine Draufsicht auf den Volumenstromregler und den Rohrabschnitt gem. Fig. 1.
Further advantages, features and details of the invention emerge from the following description of a preferred exemplary embodiment and with reference to the drawing; this shows in
  • Figure 1 is a side view of a volume flow controller according to the invention, mounted on a pipe section of a corresponding air duct system.
  • Fig. 2 is a plan view of the volume flow controller and the pipe section acc. Fig. 1.

Gem. Fig. 1 sitzt einem Rohrabschnitt 1 eines nicht näher dargestellten Luftführungs- bzw. Klimasystems ein Volumenstromregler 2 auf. Dieser Volumenstromregler 2 besteht im wesentlichen aus einer eigentlichen Einstellvorrichtung 3 und einem Regler 4.According to FIG. 1, a volume flow controller 2 is seated on a pipe section 1 of an air routing or air conditioning system, not shown. This volume flow controller 2 essentially consists of an actual setting device 3 and a controller 4.

Über die Einstellvorrichtung 3 wird eine nicht näher dargestellte Drosselklappe in dem Rohrabschnitt 1 bedient, welche je nach dem Querschnitt des Rohrabschnitts 1 rund oder oval sein kann oder eine andere geometrische Form einnehmen kann. Dabei dreht die Drosselklappe um eine Drehachse 5.Via the adjusting device 3, a throttle valve (not shown in detail) in the pipe section 1 is operated, which can be round or oval, depending on the cross section of the pipe section 1, or can take on a different geometric shape. The throttle valve rotates about an axis of rotation 5.

Im Bereich der Einstellvorrichtung 3 ist der Drehachse 5 eine Stellscheibe 6 aufgesetzt, wobei die Stellscheibe 6 drehfest mit der Drehachse 5 gekoppelt ist. Exzentrisch zu der Drehachse 5 ist die Stellscheibe 6 über ein Zugelement 7, beispielsweise eine Kugelkette, mit einem Federstreifen 8 verbunden und zwar an dessen freiem Ende 9, gegenüber dem ein nicht näher gezeigtes Ende an einer Seitenwand 10 eines Gehäuses 11 für die Einstellvorrichtung 3 festliegt. Das freie Ende 9 des Federstreifens 8 kann von der Seitenwand 10 in Richtung y abheben, wobei dann die Stellscheibe 6 in Richtung z um die Drehachse 5 dreht und sich die Drosselklappe schließt. Eine derartige Stellung des Federstreifens 8 ist gestrichelt angedeutet.In the area of the adjusting device 3, the adjusting shaft 6 is placed on the axis of rotation 5, the adjusting disk 6 being coupled in a rotationally fixed manner to the axis of rotation 5. Eccentric to the axis of rotation 5, the adjusting disc 6 is connected via a tension element 7, for example a ball chain, to a spring strip 8 and at its free end 9, opposite which an end, not shown in more detail, is fixed to a side wall 10 of a housing 11 for the adjusting device 3 . The free end 9 of the spring strip 8 can lift off the side wall 10 in the y direction, the adjusting disc 6 then rotating in the z direction about the axis of rotation 5 and the throttle valve closes. Such a position of the spring strip 8 is indicated by dashed lines.

Die Freigabe des Federstreifens 8 erfolgt durch Verschieben eines Schlittens 12 in Richtung x, da der Federstreifen 8 in einem nur gestrichelt angedeuteten Kanal 13 des Schlittens 12 geführt ist. Wird der Schlitten 12 in Richtung x verschoben, wird mehr und mehr von dem Federstreifen 8 freigegeben, so daß dieser Federstreifen 8 einem Zug des Zugelementes 7 nachgeben kann. Dadurch kann wiederum die Drosselklappe immer mehr von dem freien Querschnitt des Rohrabschnittes 1 verschließen.The spring strip 8 is released by moving a slide 12 in the direction x, since the spring strip 8 is guided in a channel 13 of the slide 12, which is only indicated by dashed lines. If the carriage 12 is displaced in the direction x, more and more of the spring strip 8 is released, so that this spring strip 8 can yield to a train of the tension element 7. As a result, the throttle valve can in turn close more and more of the free cross section of the pipe section 1.

Gelangt der Schlitten 12 in die Nähe seiner Endlage, so trifft er dort mit seiner Rückseite 14 auf einen Drehhebel 15, der an einem Drehbolzen 16 angeordnet ist. Dieser Drehhebel 15 besitzt einen Druckschenkel 17, welcher auf das hintere Ende einer Druckstange 18 auftrifft. Diese Druckstange 18 ist einerseits nahe des Druckschenkels 17 in einem Führungsprofil 19 entgegen der Richtung x verschiebbar gelagert und greift andernends mit einem Haken 20 in eine Bohrung in der Stellscheibe 6 ein.If the carriage 12 comes close to its end position, it meets the rear 14 of a rotary lever 15 which is arranged on a pivot pin 16. This rotary lever 15 has a pressure leg 17 which strikes the rear end of a push rod 18. This push rod 18 is on the one hand near the pressure leg 17 in a guide profile 19 slidably mounted against the direction x and on the other hand engages with a hook 20 in a hole in the adjusting disc 6.

In der in Fig. 2 gezeigten Endlage liegt dabei die Druckstange 18 einer Anschlagrolle 21 auf, die ebenfalls in der Stellscheibe 6 sitzt. Ferner ist auch der Haken 20 exzentrisch zu der Drehachse 5 mit der Stellscheibe 6 verbunden, so daß nach Drehung der Stellscheibe 6 um die Drehachse 5 in die Drehrichtung z beim Schließsen der Drosselklappe ein günstiges Kräfteverhältnis für die Druckstange 18 hergestellt wird, indem die Lage des Hakens 20 in der dann erreichten Position unterhalb der Drehachse 5 erreicht ist, wobei sich eine Verbindung des Zugelementes 7 mit der Stellscheibe 6 oberhalb der Drehachse 5 befindet.In the end position shown in FIG. 2, the push rod 18 rests on a stop roller 21, which is also seated in the adjusting disc 6. Furthermore, the hook 20 is connected eccentrically to the axis of rotation 5 with the adjusting disc 6, so that after rotation of the adjusting disc 6 about the axis of rotation 5 in the direction of rotation z when the throttle valve is closed, a favorable force ratio for the push rod 18 is produced by the position of the Hook 20 is reached in the position then reached below the axis of rotation 5, wherein a connection of the tension element 7 with the adjusting disc 6 is above the axis of rotation 5.

Wird jetzt mittels des Schlittens 12 auf den Drehhebel 15 ein Druck ausgeübt, so drückt der Druckschenkel 17 die Verbindungsstange 18 entgegen der Richtung x, wodurch die Drehachse 5 nochmals um ein Stück gedreht wird. Damit erfolgt ein endgültiges Schließen der Drosselklappe in dem Rohrabschnitt 1.If pressure is now exerted on the rotary lever 15 by means of the slide 12, the pressure leg 17 presses the Connecting rod 18 against the direction x, whereby the axis of rotation 5 is rotated again by a piece. The throttle valve in the pipe section 1 is thus finally closed.

Um das günstigste Hebelverhältnis zum Schließen der Drosselklappe zu erreichen, befindet sich der Haken 20 in der in Fig. 2 gezeigten Öffnungslage der Drosselklappe in etwa in der Ebene der geöffneten Drosselklappe, welche durch die strichpunktierte Längsachse A des Rohrabschnittes 1 angedeutet ist. Dabei geht diese Längsachse A durch einen Mittelpunkt M der Drehachse 5. In Schließlage befindet sich der Haken 20 dagegen in einer Ebene, welche etwa senkrecht zur Längsachse A durch den Mittelpunkt M verläuft.In order to achieve the most favorable leverage ratio for closing the throttle valve, the hook 20 is in the open position of the throttle valve shown in FIG. 2 approximately in the plane of the opened throttle valve, which is indicated by the dash-dotted longitudinal axis A of the pipe section 1. This longitudinal axis A passes through a center M of the axis of rotation 5. In the closed position, on the other hand, the hook 20 is in a plane which runs approximately perpendicular to the longitudinal axis A through the center M.

Der Schlitten 12 ist im übrigen über nicht näher gezeigte Profilstreifen mit einer Lochleiste 22 verbundem, wobei die entsprechenden Löcher 23 der Lochleiste 22 mit einer Zahnung 24 eines Zahnradsegmentes 25 in Eingriff gebracht werden können. Das Zahnradsegment 25 ist einer Drehwelle 26 aufgesetzt, welche mit einem nicht näher gezeigten Motor in dem Regler 4 in Verbindung steht. Wird der Motor in Gang gesetzt, dreht er die Drehwelle 26, wobei das Zahnradsegment 25 die Lochleiste 22 in Richtung x verschiebt. Dabei nimmt die Lochleiste 22 den Schlitten 12 mit.The carriage 12 is otherwise connected to a perforated strip 22 by means of profile strips (not shown in more detail), the corresponding holes 23 in the perforated strip 22 being able to be brought into engagement with a toothing 24 of a gearwheel segment 25. The gear segment 25 is placed on a rotary shaft 26 which is connected to a motor (not shown in detail) in the controller 4. If the motor is started, it rotates the rotary shaft 26, the gear segment 25 displacing the perforated strip 22 in the direction x. The perforated strip 22 takes the carriage 12 with it.

Oberhalb der Lochleiste 22 befindet sich eine Skala 27, über welche die Stellung des Schlittens 12 abgelesen werden kann. Verbindungselemente zwischen Lochleiste 22 und Schlitten 12 sind mit 28 gekennzeichnet.Above the perforated strip 22 there is a scale 27 by means of which the position of the slide 12 can be read. Connecting elements between perforated strip 22 and slide 12 are identified by 28.

Sofern das Zugelement 7 als Kugelkette ausgebildet ist, erfolgt eine Verbindung dieser Kugelkette mit der Stellscheibe 6 durch ein Einschieben der letzten Kugel in einen Schlitz 29. Nahe diesem Schlitz 29 ist die Stellscheibe 6 über einen mit einem Haken 30 in die Stellscheibe 6 eingesetzte Stange 31 mit einem Dämpfer 32 verbunden. Ein Ausführungsbeispiel dieses Dämpfers 32 ist in der DE-OS 41 35 758 gezeigt und wird deshalb hier nicht näher beschrieben.If the tension element 7 is designed as a ball chain, this ball chain is connected to the adjusting disk 6 by inserting the last ball into a slot 29. Near this slot 29 is the adjusting disk 6 via a rod 31 inserted into the adjusting disk 6 with a hook 30 connected to a damper 32. An embodiment this damper 32 is shown in DE-OS 41 35 758 and is therefore not described in detail here.

Der Dämpfer 32 ist beiseits über Wellenstummel 33 mit einem Montagewinkel 34 verbunden, der wiederum an dem Gehäuse 11 befestigt ist. Aufgabe des Dämpfers 32 ist es, Unterschiede im Luftstrom innerhalb des Rohrabschnittes 1 entgegenzuwirken, so daß ein -Flattern der Drosselklappe im wesentlichen vermieden wird.The damper 32 is connected on one side via shaft stub 33 to a mounting bracket 34, which in turn is fastened to the housing 11. The task of the damper 32 is to counteract differences in the air flow within the pipe section 1, so that fluttering of the throttle valve is substantially avoided.

Claims (7)

Luftführungssystem mit einem Rohrabschnitt (1), in welchem eine um eine Drehachse (5) drehbar gelagerte Drosselklappe angeordnet ist, wobei der Drehachse (5) ein Kraftspeicher (8) zugeordnet ist, der die Drosselklappe gegen einen Luftstrom in Öffnungslage bewegt,
dadurch gekennzeichnet,
daß der Drehachse (5) eine Einrichtung zugeordnet ist, welche die Drosselklappe gegen die Kraft des Kraftspeichers (8) schließt.Air guiding system with a pipe section (1), in which a throttle valve rotatably mounted about an axis of rotation (5) is arranged, the axis of rotation (5) being assigned an energy accumulator (8) which moves the throttle valve against an air flow in the open position,
characterized,
that the axis of rotation (5) is assigned a device which closes the throttle valve against the force of the energy accumulator (8). Luftführungssystem nach Anspruch 1, dadurch gekennzeichnet, daß sich die Drosselklappe in Öffnungslage etwa in der Ebene einer Längsachse (A) des Rohrabschnittes (1) und in Schließlage etwa in einer Ebene senkrecht zu der Längsachse (A) befindet.Air guidance system according to claim 1, characterized in that the throttle valve is in the open position approximately in the plane of a longitudinal axis (A) of the pipe section (1) and in the closed position approximately in a plane perpendicular to the longitudinal axis (A). Luftführungssystem nach Anspruch 2, dadurch gekennzeichnet, daß der Drehachse (5) eine Stellscheibe (6) aufgesetzt ist, in die eine Druckstange (18) mit einem Haken (20) eingreift, wobei die Druckstange (18) etwa in Richtung der Längsachse (A) verläuft.Air guidance system according to Claim 2, characterized in that an adjusting disc (6) is placed on the axis of rotation (5), into which a push rod (18) engages with a hook (20), the push rod (18) approximately in the direction of the longitudinal axis (A ) runs. Luftführungssystem nach Anspruch 3, dadurch gekennzeichnet, daß die Druckstange (18) jenseits vom Haken (20) von einem Druckschenkel (17) eines Drehhebels (15) beaufschlagt ist, wobei der Drehhebel (15) um einen Drehbolzen (16) dreht.Air guidance system according to claim 3, characterized in that the pressure rod (18) is acted upon beyond the hook (20) by a pressure leg (17) of a rotary lever (15), the rotary lever (15) rotating about a rotary pin (16). Luftführungssystem nach Anspruch 4, dadurch gekennzeichnet, daß der Drehhebel (15) in eine Laufrichtung eines Schlittens (12) einragt.Air guidance system according to claim 4, characterized in that the rotary lever (15) protrudes in a running direction of a slide (12). Luftführungssystem nach Anspruch 5, dadurch gekennzeichnet, daß der Schlitten mit einer Lochleiste (22) in Verbindung steht, deren Löcher (23) mit einer Zahnung (24) eines Zahnrades, Zahnradsegmentes (25) od. dgl. in Verbindung stehen, wobei dieses einer Welle (26) eines Motors aufsitzt.Air guidance system according to claim 5, characterized in that the carriage is connected to a perforated strip (22), the holes (23) of which are connected to a toothing (24) of a gearwheel, gearwheel segment (25) or the like, this one A shaft (26) of an engine is seated. Luftführungssystem nach wenigstens einem der Ansprüche 3 bis 6, dadurch gekennzeichnet, daß der Haken (20) in Öffnungslage der Drosselklappe etwa in einer Ebene der Längsachse (A) mit der Stellscheibe (6) verbunden ist, sich beim Drehen der Drehachse (5) zum Schließen der Drosselklappe exzentrisch um einen Mittelpunkt (M) der Drehachse (5) bewegt und in Schließlage in einer Ebene, die etwa senkrecht zur Längsachse (A) durch den Mittelpunkt (M) verläuft, angeordnet ist.Air guidance system according to at least one of claims 3 to 6, characterized in that the hook (20) in the open position of the throttle valve is connected to the adjusting disc (6) approximately in one plane of the longitudinal axis (A), when the axis of rotation (5) rotates Closing the throttle valve is moved eccentrically around a center point (M) of the axis of rotation (5) and is arranged in the closed position in a plane which runs approximately perpendicular to the longitudinal axis (A) through the center point (M).
EP94103112A 1993-03-06 1994-03-01 Air transfer system Withdrawn EP0615102A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9303288U DE9303288U1 (en) 1993-03-06 1993-03-06
DE9303288U 1993-03-06

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EP0615102A1 true EP0615102A1 (en) 1994-09-14

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EP94103112A Withdrawn EP0615102A1 (en) 1993-03-06 1994-03-01 Air transfer system

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EP (1) EP0615102A1 (en)
CZ (1) CZ50394A3 (en)
DE (1) DE9303288U1 (en)
HU (1) HUT66421A (en)
SK (1) SK27194A3 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20204755U1 (en) * 2002-03-25 2003-05-28 Meltem Waermerueckgewinnung Gm Air exchange device
EP2940396A1 (en) 2014-04-29 2015-11-04 SCHAKO Klima Luft Ferdinand Schad KG Device for regulating a through-flow of a duct with a fluid

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004001785B4 (en) * 2004-01-12 2006-02-16 Schako Klima Luft, Ferdinand Schad Kg Device for guiding an air flow

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3917360A1 (en) * 1989-05-29 1990-12-06 Schako Metallwarenfabrik DEVICE FOR REGULATING A VOLUME FLOW IN A GUIDE TUBE
US5096156A (en) * 1991-04-22 1992-03-17 Beutler Heating & Air Conditioning, Inc. Motorized damper apparatus

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL26014A (en) * 1965-06-28 1971-03-24 Fahre O Automatic regulating valve for ventilation plants

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3917360A1 (en) * 1989-05-29 1990-12-06 Schako Metallwarenfabrik DEVICE FOR REGULATING A VOLUME FLOW IN A GUIDE TUBE
US5096156A (en) * 1991-04-22 1992-03-17 Beutler Heating & Air Conditioning, Inc. Motorized damper apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20204755U1 (en) * 2002-03-25 2003-05-28 Meltem Waermerueckgewinnung Gm Air exchange device
EP2940396A1 (en) 2014-04-29 2015-11-04 SCHAKO Klima Luft Ferdinand Schad KG Device for regulating a through-flow of a duct with a fluid

Also Published As

Publication number Publication date
DE9303288U1 (en) 1993-05-27
HUT66421A (en) 1994-11-28
HU9400566D0 (en) 1994-05-30
SK27194A3 (en) 1995-01-12
CZ50394A3 (en) 1995-01-18

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