SE0200595L - Ventilation duct and dampers - Google Patents

Ventilation duct and dampers

Info

Publication number
SE0200595L
SE0200595L SE0200595A SE0200595A SE0200595L SE 0200595 L SE0200595 L SE 0200595L SE 0200595 A SE0200595 A SE 0200595A SE 0200595 A SE0200595 A SE 0200595A SE 0200595 L SE0200595 L SE 0200595L
Authority
SE
Sweden
Prior art keywords
ventilation duct
sound absorption
absorption material
dampers
casing
Prior art date
Application number
SE0200595A
Other languages
Swedish (sv)
Other versions
SE525044C2 (en
SE0200595D0 (en
Inventor
Paul Nordin
Sven-Inge Blank
Original Assignee
Vasab Vaegg & Akustik System A
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 Vasab Vaegg & Akustik System A filed Critical Vasab Vaegg & Akustik System A
Priority to SE0200595A priority Critical patent/SE525044C2/en
Publication of SE0200595D0 publication Critical patent/SE0200595D0/en
Priority to PCT/SE2003/000306 priority patent/WO2003073016A1/en
Priority to AU2003212731A priority patent/AU2003212731A1/en
Publication of SE0200595L publication Critical patent/SE0200595L/en
Publication of SE525044C2 publication Critical patent/SE525044C2/en

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
    • F24F13/02—Ducting arrangements
    • F24F13/0263—Insulation for air ducts
    • 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
    • F24F13/24—Means for preventing or suppressing noise
    • 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
    • F24F13/24—Means for preventing or suppressing noise
    • F24F2013/242—Sound-absorbing material

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Duct Arrangements (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Pipe Accessories (AREA)

Abstract

The present invention relates to a ventilation duct that comprises a casing (1; 101) that on its interior is covered with a sound absorption material (9, 10; 109, 110). According to a preferred embodiment of the invention a damper (20; 120) is provided inside the ventilation duct. It is significant of the ventilation duct of the present invention that sound absorption material (9, 10; 109, 110), having at least two different densities, is provided inside the casing (1; 101), and that the sound absorption material (10; 110) having the lowest density defines an air flow area, said sound absorption material (10; 110) constituting the surface layer inside the ventilation duct.
SE0200595A 2002-02-28 2002-02-28 Ventilation duct comprising sound attenuating materials of different densities and dampers with perforated blade SE525044C2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE0200595A SE525044C2 (en) 2002-02-28 2002-02-28 Ventilation duct comprising sound attenuating materials of different densities and dampers with perforated blade
PCT/SE2003/000306 WO2003073016A1 (en) 2002-02-28 2003-02-25 Ventilation duct including sound dampning materials with different density and a valve
AU2003212731A AU2003212731A1 (en) 2002-02-28 2003-02-25 Ventilation duct including sound dampning materials with different density and a valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0200595A SE525044C2 (en) 2002-02-28 2002-02-28 Ventilation duct comprising sound attenuating materials of different densities and dampers with perforated blade

Publications (3)

Publication Number Publication Date
SE0200595D0 SE0200595D0 (en) 2002-02-28
SE0200595L true SE0200595L (en) 2003-08-29
SE525044C2 SE525044C2 (en) 2004-11-16

Family

ID=20287107

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0200595A SE525044C2 (en) 2002-02-28 2002-02-28 Ventilation duct comprising sound attenuating materials of different densities and dampers with perforated blade

Country Status (3)

Country Link
AU (1) AU2003212731A1 (en)
SE (1) SE525044C2 (en)
WO (1) WO2003073016A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2876434A1 (en) * 2004-10-11 2006-04-14 Technofan Sa Gas flow duct sealing device for e.g. aircraft ventilation system, has shutter movable between two positions and including layer with sound attenuation property, fixed to support at one side of shutters
DE102007062827A1 (en) * 2007-12-21 2009-06-25 Behr Gmbh & Co. Kg Sound-absorbing fluid channel with a flow guide
US9581353B2 (en) * 2009-01-23 2017-02-28 Valeo Climate Control Corporation HVAC system including a noise-reducing feature
EP2306108B1 (en) * 2009-09-25 2013-11-20 Hans Östberg A ventilating arrangement
GB2501867B (en) * 2012-03-19 2019-03-20 Nuaire Ltd Acoustically attenuated ventilation system
CN108506215A (en) * 2017-09-25 2018-09-07 约克（无锡）空调冷冻设备有限公司 Silencing means
EP3614066A1 (en) * 2018-08-22 2020-02-26 Arup Ventures Limited Openable panel unit

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB721860A (en) * 1952-11-11 1955-01-12 Bolt Beranek & Newman Improvements in sound-absorbers for use in fluid media
US3263771A (en) * 1964-05-21 1966-08-02 Seifert Kurt Sound absorbing pipe lining having packing with different densities
US4068736A (en) * 1975-04-14 1978-01-17 Tempmaster Corporation Method and device for reducing noise
US5530213A (en) * 1993-05-17 1996-06-25 Ford Motor Company Sound-deadened motor vehicle exhaust manifold
DE4429045B4 (en) * 1994-08-16 2005-11-24 E. Missel Gmbh insulation
SE516302C2 (en) * 1999-03-26 2001-12-17 Paroc Group Oy Ab Silencer insert for air or gas ducts

Also Published As

Publication number Publication date
SE525044C2 (en) 2004-11-16
AU2003212731A1 (en) 2003-09-09
SE0200595D0 (en) 2002-02-28
WO2003073016A1 (en) 2003-09-04

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Legal Events

Date Code Title Description
NUG Patent has lapsed