EP2052191A1 - Volet d'aération pour réguler l'écoulement à l'intérieur d'un conduit - Google Patents

Volet d'aération pour réguler l'écoulement à l'intérieur d'un conduit

Info

Publication number
EP2052191A1
EP2052191A1 EP07785093A EP07785093A EP2052191A1 EP 2052191 A1 EP2052191 A1 EP 2052191A1 EP 07785093 A EP07785093 A EP 07785093A EP 07785093 A EP07785093 A EP 07785093A EP 2052191 A1 EP2052191 A1 EP 2052191A1
Authority
EP
European Patent Office
Prior art keywords
air flap
ventilation pipe
apex line
flap
air
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
EP07785093A
Other languages
German (de)
English (en)
Other versions
EP2052191B1 (fr
Inventor
Georg Bamberger
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.)
Belimo Holding AG
Original Assignee
Belimo Holding AG
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 Belimo Holding AG filed Critical Belimo Holding AG
Publication of EP2052191A1 publication Critical patent/EP2052191A1/fr
Application granted granted Critical
Publication of EP2052191B1 publication Critical patent/EP2052191B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • 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
    • F24F13/1406—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 sealing means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/598—With repair, tapping, assembly, or disassembly means
    • Y10T137/6028—Assembling or disassembling pivoted valve
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49815—Disassembling

Definitions

  • the invention relates to a device for controlling an air flow in a ventilation pipe, comprising a pivotable air flap, which can assume adjustable ⁇ réellesstel- lungs and which prevents the air flow in the vent pipe in a closed position, and coupled to the air damper drive for pivoting the air damper, wherein the drive is arranged inside the ventilation tube.
  • a pivotable air flap which can assume adjustable ⁇ réellesstel- lungs and which prevents the air flow in the vent pipe in a closed position
  • the air damper drive for pivoting the air damper, wherein the drive is arranged inside the ventilation tube.
  • duct with cross-section continuous pipe wall is used in particular for pipes of inside round or elliptical cross-section.Ventilation systems are used in buildings, in particular residential, office, commercial and industrial buildings and tunnels, usually combined with fire and smoke protection equipment, In contrast, a rectangular cross section is not “continuous" in the sense of this definition.
  • volume flow control with pivoting air dampers plays an essential role.
  • the volumetric flow is measured with a suitable measuring instrument, for example with a NMV-D2M from Belimo Automation AG, CH-8340 Hinwil, which is designed as a compact unit of drive, pressure sensor and controller, which device enables the display of the volumetric flow in m 3 / ri. This considerably simplifies the regulation and optimization of the ventilation system and enables lower operating costs.
  • the geometric shape of the planar louvers is adapted to the geometric pipe cross-section, particularly suitable is a round, elliptical or rectangular shape.
  • the plane of the flap In the closed position, the plane of the flap is usually perpendicular or at a defined angle between 50 ° and 90 °. In the case of a round ventilation pipe, therefore, a round or elliptical flap results as the optimal solution.
  • US 6 105 127 A describes an air damper with a sandwich structure.
  • Two rigid circular discs of slightly smaller diameter than the inner diameter of the vent tube support an inner third disc made of a soft material which peripherally protrudes annularly and is bent in the direction perpendicular to the longitudinal axis of the vent tube extending end position.
  • the pivoting movement is effected by a connecting rod, which acts on a lever arm.
  • WO 2005/053975 A1 describes a fundamentally new device for controlling the air flow in a ventilation pipe with one or more synchronously actuable air flaps which prevent the air flow in the closed position.
  • On a longitudinal The inner plane of the plane of symmetry of the ventilation tube has a fastening web with a pivot bearing for the drive axis of the folder and means for transmitting force and / or torque to the drive axle connected to the air flap.
  • the same fixing bar which can be fitted with different louvers, can be used for cross-sectionally dimensioned ventilation ducts.
  • the air flap is of circular or elliptical basic shape, the drive axle lies on its small diameter.
  • the fastening web extends at an angle of 15 to 90 °, relative to the longitudinal axis of the ventilation pipe.
  • the present invention has for its object to provide a device of the type mentioned, which further improves the efficiency of the air damper without external drives, lever systems or through the pipe wall leading bearings.
  • the device should be easier to install in an existing ventilation pipe or replaceable.
  • the air flap has a curved and thereby biased elastic sheet, which rests in the open positions on two relative to a crest line of the sheet diametrically opposite support point areas in the vent pipe.
  • the air flap or the flat body (for example, a plastic sheet) is thus clamped in the ventilation pipe and is supported on two support points, which act as fulcrums of the air damper.
  • the elastic with respect to the longitudinal center plane of the ventilation tube symmetrically or approximately symmetrically curved, biased self-stable on the pipe wall supporting air damper in the region of its apex via a bent lever arm at a distance a rigidly mounted on the drive shaft of the drive motor.
  • the air damper is thus held in principle at three points.
  • the mechanical connection to the drive can also be done in other ways. This ensures that the air damper is always supported on the inner tube wall self-centering on the migrating with the flap position support points and rests in the closed position along a closed, continuous circumferential sealing surface on the inner tube wall, the support points on the virtual points of intersection of the longitudinal axis Drive shaft with the pipe wall lie.
  • the drive housing containing the drive housing is freely pivotably mounted on an inner wall of the ventilation tube in a defined or clamped together with the apex line longitudinal center plane of the ventilation tube.
  • the drive motor transmits its torque to the drive shaft via the reduction gear and to the air flap via the lever arm.
  • the angle of the drive housing to the longitudinal center axis of the ventilation tube self-centering inevitably shifts. Accordingly, the contact points of the air flap on the inner tube wall.
  • the closing movement is completed when the air damper rests sealingly along the entire circumference of the pipe wall and forms a sealing surface.
  • the maximum flow is achieved when the apex line of the air damper runs parallel to the mentioned longitudinal axis of the central axis. Between the closed position and the maximum open position, each position of the air flap can be adjusted for flow control.
  • the air damper in the direction of flow is considered, ie upstream, concave.
  • the contact pressure on the pipe wall is increased by the pressure-dependent bias and the sealing effect is increased.
  • a louver with a lower residual stress which means a significant material savings or a possibility for a cheaper material.
  • the apex line of the air damper does not intersect the pivot axis, which is expediently identical to the drive shaft, but extends with leverage at a distance therefrom.
  • the blank of the relaxed in-plane louver ie, the sheet
  • the plane Lucaskiappe with steady circumference is calculated with respect to a certain optimal closing angle of the inserted inside the tube, curved air damper with the longitudinal center axis. This angle (measured between the longitudinal center axis of the ventilation tube and the apex line of the air damper) is preferably less than 90 ° and is z. B. in the range of 60 to 80 °, in particular at about 70 °.
  • the point of intersection which exists between the transverse line (R) and the crest line (S) divides the crest line (S) into two different sections.
  • the sections are of different lengths, with one section (f) not more than 4/5 of the length of the other section (e).
  • the air flap consists of a corrosion-resistant elastic metal, in particular spring steel, or a mechanically dimensionally stable, resilient plastic, in particular a Polyethylentherephtalat or a polyamide.
  • the thickness of the air damper is material-specific according to the required contact pressure of the curved damper on the pipe wall by means of residual stress, taking into account the pressure exerted by the pressure on them, calculated.
  • the plan dimensions of the air damper are calculated from the parameters of the inner diameter of the pipe wall to be equipped, closing angle of the apex line to the longitudinal center axis of the ventilation tube, radius of curvature of the air damper used and distance of the apex line of the air damper of the drive shaft forming the pivot axis
  • the two support points lie on the inner tube wall in the virtual intersection with the extended pivot axis.
  • a ring-shaped projecting or a U-shaped elastic seal is arranged, which expediently consists of rubber, an elastomer or a soft plastic.
  • the sealing lip may be integrally formed on the sheet body forming the air damper.
  • the sealing lip is smaller at the contact point areas than in a region of the apex line.
  • the sheet is composed of a disc of the highly elastic material, which is arranged as a peripherally projecting core layer between two metallic, duroplastic or thermoplastic cover disks. It is therefore an air damper made of a flexible composite material, which compensates for any leaks through ovality of the tube along the circumference of the air damper and seals.
  • the two cover plates are not arranged congruently.
  • one of the cover disks with a smaller radius runs over one half-circumference lying between the support points, that is to say it is arranged set back.
  • the continuous circumferential annular seal thus does not run as usual with two equal sized cover plates.
  • the arrangements with a over the entire circumference regularly projecting sealing lip have the disadvantage that the sealing material deformed strongly in the closed position of the air damper and jammed, which can make a significantly larger torque required when opening.
  • the mutually recessed cover plates prevent jamming of the sealing material. When opening the air flap, the larger cover plate can push away the sealing material unhindered, so it is a much smaller torque required.
  • the region of the apex line of the air flap is reinforced with longitudinal webs or ribs, which can extend to the periphery.
  • longitudinal ribs are applied to the louver, for example, by welding, soldering or gluing, or integrally formed with it.
  • the object is achieved in that from the vent pipe an opening, in particular an elongated in the axial direction of the vent pipe rectangle cut out, the device on a the opening on all sides protruding cut of Rohrma- material or attached transparent material, introduced with strongly bent elastic air flap, and the opening is sealed again.
  • the blank is made of transparent material, the device used with the air damper can be observed.
  • the invention has the following advantages:
  • the air damper is designed so that it self-centering on the pipe wall without wall-carrying rotary bearing is supported approximately centrally.
  • the result is a three-point support, which defines a plane, which contributes to stability.
  • the air flap Due to the concave curvature in the direction of flow, the air flap is pressed more strongly against the pipe wall with increasing pressure in the ventilation pipe, which improves the seal.
  • the air flap is very easy to assemble, the blank can be bent through a relatively narrow opening to be guided, let loose, the air damper is based immediately on the inner wall.
  • the damper can be installed in any position.
  • the mounting hole extends less than the half of the pipe, which contributes significantly to maintaining the stability of the ventilation pipe.
  • FIG. 1 is a view of a device with a used in a cut vent pipe shown, maximum open air damper
  • FIG. 2 shows the side view of FIG. 1 in the direction of the air flow
  • Fig. 3 is a perspective view of the device of FIG. 1 with open
  • FIG. 4 shows the device according to FIG. 3 with closed air flap
  • FIG. 5 is a plan view of a plan designed air damper made of composite material
  • FIG. 5 is the side view of Fig. 5,
  • FIG. 7 is a perspective view of Fig. 5,
  • 10 - 15 is a perspective view of the installation of a device according to FIG. 1 - 4 in a ventilation pipe.
  • 16-18 is a sectional view of the sheet of the air damper and a plan view of this.
  • the device 12 essentially comprises a freely pivotable drive housing 32 with a drive motor 14 and a reduction gear 16, which exerts a torque on a drive shaft 18.
  • This drive shaft 18 is rigidly connected to a right-angled cantilevered lever arm 20, which in turn is bent at right angles in the direction of the drive housing and thus forms a support surface 22 for a fixed thereto elastic air damper 24.
  • the lever arm 20 is U-shaped according to a variant, not shown, connected via two legs to the drive shaft 18, the base forms the support plate 22 for the air damper 24. This is fixed according to FIG. 4 with two screws 26 on the support plate 22, which has a distance a from the longitudinal axis of the drive shaft 18.
  • the device 12 or the drive housing 32 is suspended on a pivot bearing 30, which in turn is fastened with a through the ventilation tube 10 by cross-bolt 28 or snapped to a variant, not shown.
  • the position angle ⁇ of the freely rotatable in a longitudinal center plane L M drive housing 32 to the longitudinal central axis L A of the vent pipe 10 is dependent on the tilt angle of the curved damper 24.
  • electrical conductors for energy and signal transmission are directed into the pipe interior.
  • the introduced into the vent pipe 10 elastic air valve 24 is - apart from the closed position - curved in two diagonally opposite support points 36, 38 on the inner tube wall 34.
  • the air flap 24 is dimensioned such that the support points 36, 38 simultaneously form the virtual penetration points of the longitudinal axis L w of the drive shaft 18 with the pipe wall 34.
  • these support points 36, 38 are not interpreted in a purely geometric sense, they are designed as a minimally expanding support surface.
  • at these support points 36, 38 is not pierced through the pipe wall 34, but that these support points 36, 38 in function of the pivot angle of the flap 34 with the changing angle ⁇ of the motor housing 32 wander.
  • the support points 36, 38 are no longer recognizable.
  • the air flap 24 is now instead of the support points 36, 38 along its entire, continuously extending circumference U on the pipe wall 34 and thus seals the vent pipe 10 completely.
  • the apex line S of the symmetrically curved air damper 24 always runs independently of its pivoting position on the longitudinal center plane L M of the ventilation pipe 10.
  • a relaxed, lying on a plane elastic air damper 24 is shown, which is formed as a layer composite.
  • a core layer 44 is disposed of an approximately 0.5 mm thick elastomer layer, which protrudes peripherally.
  • the upper cover disk 40 in the viewing direction of FIG. 5 covers the elastic air damper 24 almost completely.
  • the elastic louver 24 is symmetrical with respect to the virtual crest line S formed in bending.
  • the crest line passes through two boreholes 46, 48 through which the louver 24 is fixed on the platen 22 ( Figure 3).
  • the substantially egg-shaped air damper 24 has no plane perpendicular to the apex line S extending plane of symmetry.
  • the two cover disks 40, 42 overlap in the peripheral area only in the two tangential areas T.
  • the core layer 44 is cut back parallel to the apex line S such that in the mentioned tangential areas T the two cover disks 40, 42 remain without a core layer lying therebetween.
  • the air flap 24 inserted in a ventilation tube 10 can be displaced and pivoted on the support points 36, 38 with less resistance.
  • the lower cover plate 42 can be seen only as a small Spickel.
  • the continuous circumference U formed by the two cover disks 40, 42 is also formed in the overlapping tangential region T.
  • the elastomeric core layer 44 projects peripherally around c in the upper part and around b + c in the lower part. Viewed from below (FIG. 5) or (FIG. 6), the elastomeric core layer 44 projects beyond b + c in the upper region, only by c in the lower region.
  • 8 shows the peripheral region of a closed air flap outside the tangential regions T (FIG. 5), in particular in the region of the apex line (S), with a protruding core layer 44 made of an elastomer designed as a sealing lip 52.
  • the elastic air flap 24 has in the region of the longitudinal center axis L two reinforcing plates 60 which clamp the elastic air cap lying therebetween. Furthermore, longitudinal reinforcing ribs 62 are arranged, which, like the angled lever arm 20, are glued, soldered or welded onto the support plate 22. If the upper cover disk 40 is made of plastic, the reinforcing elements 60, 62 and the lever arm 20 can also be formed in one piece. Finally, the distance a of the pivot axis of the drive shaft 18 is indicated by the support plate 22 for the elastic air damper. As mentioned above, this distance a is a determining variable for the calculation of the surface shape of the air flap 24; the greater the distance a, the more it deviates from the elliptical shape.
  • FIGS. 10-15 shows the installation of a device according to the invention in a ventilation tube at an arbitrary position.
  • Fig. 10 From a vent pipe 10 a rectangular in the projection opening 64 is cut out. For clarity, the drawn opening 64 extends over a greater part of the circumference than is necessary in practice. On in no case may the opening be greater than half the circumference, the opening 64 is as small as possible, so that the stability of the ventilation tube 10 is not impaired.
  • a device 12 for controlling the air flow with a hollow screw 28 is mounted on a blank 66 of tube material.
  • the elastic air damper 24 is relaxed and lies on one level.
  • Fig. 14 The device 12 with the freely rotatable drive housing 32 and the not visible air damper is fully inserted into the vent pipe 10.
  • the blank 66 is located as the opening 64 on all sides overlapping tangent plane.
  • the next step, the bending of the blank 66 on the vent pipe 10 is indicated by arrows 72, 74.
  • FIG. 15 The blank 66 rests on the opening 64 on all sides sealingly on the ventilation tube 10 and is detachably or non-detachably connected thereto, in the present case by means of screws 76.
  • the blank 66 also consists of other than tube material, in particular of a flexible transparent material.
  • the device 12 can be observed with the elastic damper 24 from the outside and monitored.
  • Figs. 16 to 18 show a further preferred embodiment of the invention.
  • the air flap is essentially formed by a flexible one-piece plastic disk 80.
  • the plastic disk 80 is oval and can be characterized by the crest line S and the transverse line R perpendicular to it.
  • the crest line S is determined by the longest diameter line of the plastic disk 80.
  • the transverse line R is defined by the diameter line of greatest length perpendicular to it. At the crossing point of crest line S and transverse line R, the transverse line R is halved. In Fig. 17, half the transverse never denoted R by g. In contrast, the apex line S is divided by the transverse line R into two unequal sections e and f.
  • an angle of 60-80 ° can be achieved.
  • a ratio of 70 ° and a pipe diameter of 125 - 150 mm can be achieved.
  • the crest line S is slightly larger than the transverse line R.
  • a closing angle of e.g. 70 ° turn out to be values in the range
  • two sealing lips 81, 82 are formed on the plastic disk 80.
  • the width of the sealing lip 81, 82 varies continuously along the circumference of the plastic disk 80.
  • sealing lips are missing. Where the crest line S abuts the periphery of the plastic disc 80, they are maximally wide and are there at an angle of 45 ° to the plane of the plastic disc 80, for example.
  • the sealing lips 81 and 82 are thinner than the plastic disk 80 and put on opposite major surfaces 83 and 84, respectively.
  • edge regions 85, 86 are in the installed state of the air damper according to the invention contact or pivot points of the air damper.
  • 83 reinforcing ribs 87, 88 are provided on the one main surface. In the embodiment shown, they extend approximately over half the length of the apex line S, specifically in the region of the portion of the apex line denoted by a (see FIG. 17).
  • a first fastening element 90 is provided between the reinforcing ribs 87, 88.
  • a second fastening element 89 is present.
  • the two fastening elements 89, 90 rise from the main surface 83, and are overall plate-shaped or ramp-shaped and strip-shaped in plan view. They can also serve as reinforcement of the plastic disk 80 along the crest line S.
  • the fastening elements 89, 90 snap-lock devices 92, 93 for an actuating lever of a damper drive.
  • an edge 91 which laterally delimits the free region formed between the fastening elements 89, 90.
  • the flank 91 represents in the present example, an extension of the rib 87 and preferably also has latching elements for fixing the (not shown) fastening lever.
  • each of the two snap-lock devices 92, 93 is associated with a (production-related) push-through opening 94, 95. These are covered by the coupling element formed on the actuating lever (which cooperates with the snap-lock devices 92, 93). In the mounted state, the plastic disc 80 is thus airtight.
  • the described embodiments can be modified in many ways.
  • the reinforcement along the crest line may be integrated with the plastic disk 80 (e.g., in the form of integrated material reinforcements).
  • the attachment of the plastic disc can also be done by screwing or sticking, instead of by snapping.
  • the sealing lips 81, 82 may be made of the same material as the plastic disk 80 or of another material. It is also not mandatory that their width varies continuously along the circumference.
  • the described embodiments are dimensioned for a closing angle of about 70 °. At other closing angles, the lengths are crest line and cross line different. But you will not vary more than 10% for variants with a closing angle in the range of 60 ° -80 ° or even up to 90 °.

Abstract

L'invention concerne un dispositif (12) destiné à la régulation d'un flux d'air (A) dans un tube d'aération (10), ce dispositif comprenant au moins un volet d'aération (24) pivotant qui, en position fermée, empêche l'écoulement du flux d'air (A) dans le tube (10). Dans la paroi tubulaire (34) interne formant une surface continue dans le sens transversal est logé un boîtier (32) d'un entraînement du volet d'aération (24), ce boîtier pivotant librement sur le plan médian longitudinal (LM) correspondant. Le volet d'aération (24) élastique, qui est cintré de manière symétrique ou presque symétrique au plan médian longitudinal (LM) du tube d'aération (10) et qui appuie sous précontrainte et par une stabilité propre sur la paroi tubulaire (34), est maintenu, dans la zone de sa ligne de sommet (S), par un bras de levier (20) coudé à une certaine distance (a) et de manière fixe sur l'arbre (18) de l'entraînement. Le volet d'aération (24) appuie en permanence sur les points d'appui (36,38) qui se déplacent en fonction de la position du volet, sur la paroi tubulaire (34) interne, en s'autocentrant et sensiblement dans l'axe. En position fermée, le volet d'aération se trouve le long d'une surface d'étanchéité (58) fermée formant une surface périphérique continue sur la paroi tubulaire (34) interne. Les points d'appui (36,38) appuient sur les points d'intersection virtuels de l'axe longitudinal (LW) de l'arbre d'entraînement (18) avec la paroi tubulaire (34). Une ouverture (64), notamment rectangulaire, est découpée dans le tube d'aération (10) pour l'insertion ou l'échange du dispositif (12). Le dispositif (12) est fixé sur une pièce découpée (66) faisant saillie de toute part de l'ouverture, cette pièce étant découpée dans le matériau tubulaire ou en matière transparente, le volet d'aération (24) élastique étant inséré par cintrage et l'ouverture (64) étant refermée de manière étanche.
EP07785093.1A 2006-08-18 2007-08-14 Volet d'aération pour réguler l'écoulement à l'intérieur d'un conduit Not-in-force EP2052191B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH13212006 2006-08-18
PCT/CH2007/000398 WO2008019519A1 (fr) 2006-08-18 2007-08-14 Volet d'aération pour réguler l'écoulement à l'intérieur d'un conduit

Publications (2)

Publication Number Publication Date
EP2052191A1 true EP2052191A1 (fr) 2009-04-29
EP2052191B1 EP2052191B1 (fr) 2016-11-16

Family

ID=38537700

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07785093.1A Not-in-force EP2052191B1 (fr) 2006-08-18 2007-08-14 Volet d'aération pour réguler l'écoulement à l'intérieur d'un conduit

Country Status (6)

Country Link
US (1) US8430731B2 (fr)
EP (1) EP2052191B1 (fr)
CN (1) CN101506593B (fr)
CA (1) CA2658955A1 (fr)
RU (1) RU2451244C2 (fr)
WO (1) WO2008019519A1 (fr)

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US8430731B2 (en) 2013-04-30
US20100105312A1 (en) 2010-04-29
RU2009109703A (ru) 2010-09-27
CA2658955A1 (fr) 2008-02-21
CN101506593B (zh) 2012-12-05
EP2052191B1 (fr) 2016-11-16
RU2451244C2 (ru) 2012-05-20
WO2008019519A1 (fr) 2008-02-21
CN101506593A (zh) 2009-08-12

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