EP0060112B1 - Eine Drosseleinrichtung für Lüftungsanlagen mit einer Anzahl von parallelen und drehbaren rechteckigen Klappen - Google Patents

Eine Drosseleinrichtung für Lüftungsanlagen mit einer Anzahl von parallelen und drehbaren rechteckigen Klappen Download PDF

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Publication number
EP0060112B1
EP0060112B1 EP82301147A EP82301147A EP0060112B1 EP 0060112 B1 EP0060112 B1 EP 0060112B1 EP 82301147 A EP82301147 A EP 82301147A EP 82301147 A EP82301147 A EP 82301147A EP 0060112 B1 EP0060112 B1 EP 0060112B1
Authority
EP
European Patent Office
Prior art keywords
damper
frame members
blades
journals
damper blades
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
Application number
EP82301147A
Other languages
English (en)
French (fr)
Other versions
EP0060112A3 (en
EP0060112A2 (de
Inventor
Tage Hougaard
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.)
Novenco Building and Industry AS
Original Assignee
Nordisk Ventilator Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nordisk Ventilator Co filed Critical Nordisk Ventilator Co
Priority to AT82301147T priority Critical patent/ATE13349T1/de
Publication of EP0060112A2 publication Critical patent/EP0060112A2/de
Publication of EP0060112A3 publication Critical patent/EP0060112A3/en
Application granted granted Critical
Publication of EP0060112B1 publication Critical patent/EP0060112B1/de
Expired 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
    • F24F13/15—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre with parallel simultaneously tiltable lamellae

Definitions

  • This invention relates to a ventilation damper assembly to be mounted in a cabinet, a ventilation duct or a wall opening and comprising a number of substantially rectangular damper blades of wing-shaped cross-sectional profile mounted rotatably with parallel axes of rotation between opposite frame members in a substantially rectangular damper frame, and wherein said opposite frame members are provided with bearings for journals secured in the damper blades, said journals being in engagement with a drive mechanism by which the damper blades can be moved between a closing portion and an opening position.
  • Dampers of this type are used particularly as air volume control and damping means as well as mixing dampers when mounted in ventilation ducts of rectangular cross-section or in wall openings or openings in side walls or end walls of cabinets, for instance for air conditioning control units in air conditioning systems. Beyond a reliable closing function with respect to tightness and a movement of the damper blades which as far as possible is free from play and noise it is a purpose to create a simple and sturdy design of such damper blades with the lowest possible costs of production.
  • dampers of the above mentioned kind are usually provided - beyond tightening strips along the longitudinal 'edges of each damper blade - with special, lateral tightening members secured to said frame members, such -as disclosed in DE-A-2,342,531 and in CA-A-804,873, but thereby the damper construction is made considerably more complicated and expensive.
  • a damper assembly of the kind set forth is characterized in that the opposite sides of said frame members facing the flow passage area of the damper has a substantially convex cross-sectional shape with the minimum distance between the frame members aligned with the bearings of the journals of the damper blades, and in that the end portions of each damper blade comprise a curved edge portion facing the frame members.
  • each damper blade is in its closing position caused to tightly engage said frame members throughout the length of said end portions, while outside the closing position there is only a punctiform engagement between the end portions of the damper blade and said two frame members, the two engagement points being diametrically opposite on either side of the bearings for the journal of the damper blade. During the movement of the damper blade said engagement points follow a circular path around the bearing.
  • the substantially convex cross-sectional shape may be obtained by providing the frame members with slight bendings in relation to a plane along parallel bending lines delimiting a central strip of a width corresponding to the diameter of the bearings for the journals of the damper blades.
  • Figs. 1 and 2 illustrate an embodiment of a' ventilation damper assembly according to the invention, in a view perpendicular to the flow passage area and in a perspective view, resp., while Figs. 3 and 4 illustrate two longitudinal sections perpendicular to each other of the portion of a damper blade in the damper assembly in Figs. 1 and 2 engaging a frame member in the damper frame.
  • the damper assembly shown in Figs. 1 and 2 is mounted in a rectangular, in the present case almost square damper frame comprising frame members 1 to 4 made from bent sheet profiles of a substantially flat, U-shaped cross-section, so that either frame member as shown at 5 and 6 for the frame member 1 is provided with edge flanges to secure the damper frame either to a ventilation channel having the same flow passage area and cross-sectional shape, to a wall opening or to an opening in the side or end wall of a cabinet, for instance a central unit in an air conditioning system in which one or more fans, air humidifiers, filters and/or heating members may be located.
  • damper blades 7 to 10 of wing-shaped, cross-sectional profile are rotatably mounted in the damper frame with parallel axes of rotation between the two opposite lateral frame members 1 and 2, a journal 12 being inserted in an end portion 11 at either end of each damper blade, said journal being positioned with sliding fit in a bushing 13 drawn up in the sheet blank of the frame member as shown in Figs. 3 and 4.
  • linings made from a hard plastic, for instance nylon may be mounted in said bushings.
  • Figs. 1 and 2 the damper blades 7 and 10 are shown in a central position between a closing position in which the damper blades extend transverse to the flow direction and block the flow passage area, and an opening position in which they are substantially parallel to the flow direction.
  • damper blades 7 to 1 0 The operation of the damper blades 7 to 1 0 is effected by means of an arm 14 secured to the journal 12 for one of the damper blades 7, and the damper blades 7 to 10 are interconnected with respect to movability through a drive mechanism, including a coupling bar 15, a pivot arm 16 positioned behind the coupling bar 15 being rotatably connected with the coupling bar 15 and secured to one of the journals for each damper blade.
  • the opposite sides of the lateral frame members 1 and 3 facing the flow passage area have a substantially convex cross-sectional shape as shown in Fig. 3 with the minimum distance between the frame members 1 and 3 aligned with the bearing bushings 13 for the journals 12 of the damper blades 7 to 10, in addition to which the end portion 11 of the damper blade has a curved edge portion 11 a facing the frame members as best shown in Fig. 4.
  • the substantially convex cross-sectional shape is obtained by slightly bending a plane frame member along parallel bending lines 17 and 18, delimiting a central striplike portion of a width corresponding to the diameter of the drawn bushings 13.
  • the above mentioned bendings 17 and 18 to obtain the substantially convex cross-sectional shape of the frame member 1 may for instance be made so that the clearance between the frame member and the end portion 11 of the damper blade in its opening position varies from approximately 0 to 1-2 mm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Flow Control Members (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
  • Glass Compositions (AREA)
  • Materials For Medical Uses (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Building Environments (AREA)

Claims (2)

1. Lüftungsdrosseleinrichtung zum Einbau in ein Gehäuse, einen Lüftungskanal oder eine Wandöffnung, umfassend eine Anzahl im wesentlichen rechteckiger Drosselklappen (7-10) mit flügelförmigem Querschnittsprofil, welche Drosselklappen mit parallelen Rotationsachsen zwischen einander gegenüberliegenden Rahmenteilen eines im wesentlichen rechteckigen Drosselrahmens drehbar angeordnet sind, welche einander gegenüberliegenden Rahmenteile (1, 3) mit Lagern (13) für in den Drosselklappen (7-10) befestigten Drehzapfen (12) versehen sind, die mit einem Antriebsmechanismus in Eingriff stehen, mittels welchem die Drosselklappen (7-10) zwischen einer Schliesstellung und einer Öffnungsstellung bewegt werden können, dadurch gekennzeichnet, dass die einander gegenüberliegenden, dem Durchströmungsbereich der Drosseleinrichtung zugekehrten Seiten der Rahmenteile (1, 3) eine im wesentlichen konvexe Querschnittsform aufweisen, wobei die Rahmenteile (1, 3) ihren Mindestabstand zwischen den Lagern (13) der Drehzapfen (12) der Drosselklappen (7-10) haben, und dass die Endteile (11) jeder Drosselklappe einen den Rahmenteilen zugekehrten, abgerundeten Kantenteil (11a) aufweisen.
2. Lüftungsdrosseleinrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die im wesentlichen konvexe Querschnittsform dadurch erzielt ist, dass die Rahmenteile (1, 3) im Verhältnis zu einer Ebene entlang paralleler Biegungslinie (17, 18) mit leichten Biegungen versehen sind, die einen Mittelstreifen mit einer dem Durchmesser der Lager (13) der Drehzapfen (12) der Drosselklappen (7-10) entsprechenden Breite begrenzen.
EP82301147A 1981-03-06 1982-03-05 Eine Drosseleinrichtung für Lüftungsanlagen mit einer Anzahl von parallelen und drehbaren rechteckigen Klappen Expired EP0060112B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82301147T ATE13349T1 (de) 1981-03-06 1982-03-05 Eine drosseleinrichtung fuer lueftungsanlagen mit einer anzahl von parallelen und drehbaren rechteckigen klappen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK103481A DK146136C (da) 1981-03-06 1981-03-06 Ventilationsspjaeld med et antal parallelt anbragte og samtidigt drejelige rektangulaere spjaeldblade
DK1034/81 1981-03-06

Publications (3)

Publication Number Publication Date
EP0060112A2 EP0060112A2 (de) 1982-09-15
EP0060112A3 EP0060112A3 (en) 1983-01-26
EP0060112B1 true EP0060112B1 (de) 1985-05-15

Family

ID=8100249

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82301147A Expired EP0060112B1 (de) 1981-03-06 1982-03-05 Eine Drosseleinrichtung für Lüftungsanlagen mit einer Anzahl von parallelen und drehbaren rechteckigen Klappen

Country Status (6)

Country Link
EP (1) EP0060112B1 (de)
AT (1) ATE13349T1 (de)
DE (1) DE3263500D1 (de)
DK (1) DK146136C (de)
FI (1) FI66247C (de)
NO (1) NO151023C (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8332651D0 (en) * 1983-12-07 1984-01-11 Haslam G G Fire damper
US8500528B2 (en) * 2008-11-06 2013-08-06 Don A. Leonhard Combination bearing, linkage pin and shaft coupling for a damper

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1085492A (en) * 1965-06-04 1967-10-04 Metal Ind Ltd Improvements in adjustable louvres
US3783768A (en) * 1971-10-14 1974-01-08 Imp Damper Co Inc Damper assembly
GB2039361B (en) * 1978-11-22 1983-04-13 Actionair Equip Ventilating damper

Also Published As

Publication number Publication date
FI820763L (fi) 1982-09-07
EP0060112A3 (en) 1983-01-26
NO151023C (no) 1985-01-23
FI66247B (fi) 1984-05-31
ATE13349T1 (de) 1985-06-15
DE3263500D1 (en) 1985-06-20
DK103481A (da) 1982-09-07
DK146136B (da) 1983-07-04
NO151023B (no) 1984-10-15
FI66247C (fi) 1984-09-10
DK146136C (da) 1983-11-28
EP0060112A2 (de) 1982-09-15
NO820707L (no) 1982-09-07

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