SE0000821D0 - Device for sound attenuated ventilation duct and method of manufacture thereof - Google Patents

Device for sound attenuated ventilation duct and method of manufacture thereof

Info

Publication number
SE0000821D0
SE0000821D0 SE0000821A SE0000821A SE0000821D0 SE 0000821 D0 SE0000821 D0 SE 0000821D0 SE 0000821 A SE0000821 A SE 0000821A SE 0000821 A SE0000821 A SE 0000821A SE 0000821 D0 SE0000821 D0 SE 0000821D0
Authority
SE
Sweden
Prior art keywords
manufacture
ventilation duct
support
sound attenuated
noise
Prior art date
Application number
SE0000821A
Other languages
Swedish (sv)
Other versions
SE522353C2 (en
SE0000821L (en
Inventor
Svante Andersson
Leif Pettersson
Original Assignee
Aando Innovations Hb
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 Aando Innovations Hb filed Critical Aando Innovations Hb
Priority to SE0000821A priority Critical patent/SE522353C2/en
Publication of SE0000821D0 publication Critical patent/SE0000821D0/en
Publication of SE0000821L publication Critical patent/SE0000821L/en
Publication of SE522353C2 publication Critical patent/SE522353C2/en

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/162—Selection of materials
    • G10K11/168—Plural layers of different materials, e.g. sandwiches
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/02—Energy absorbers; Noise absorbers
    • F16L55/033—Noise absorbers
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Duct Arrangements (AREA)
  • Pipe Accessories (AREA)

Abstract

The duct comprises a deformable perforated support (2) that forms the ventilation channel (3) with a given cross-section profile, and a porous noise-damping material (6) surrounding the support. A cleanable non-noise-damping layer (8) is located in between the support and porous material. An Independent claim is also included for a method making the duct.
SE0000821A 2000-03-14 2000-03-14 Ventilation duct with noise damping, comprises perforated support, noise damping outer layer and cleanable intermediate layer SE522353C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE0000821A SE522353C2 (en) 2000-03-14 2000-03-14 Ventilation duct with noise damping, comprises perforated support, noise damping outer layer and cleanable intermediate layer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0000821A SE522353C2 (en) 2000-03-14 2000-03-14 Ventilation duct with noise damping, comprises perforated support, noise damping outer layer and cleanable intermediate layer

Publications (3)

Publication Number Publication Date
SE0000821D0 true SE0000821D0 (en) 2000-03-14
SE0000821L SE0000821L (en) 2001-09-15
SE522353C2 SE522353C2 (en) 2004-02-03

Family

ID=20278785

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0000821A SE522353C2 (en) 2000-03-14 2000-03-14 Ventilation duct with noise damping, comprises perforated support, noise damping outer layer and cleanable intermediate layer

Country Status (1)

Country Link
SE (1) SE522353C2 (en)

Also Published As

Publication number Publication date
SE522353C2 (en) 2004-02-03
SE0000821L (en) 2001-09-15

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Legal Events

Date Code Title Description
NUG Patent has lapsed