SE0003350D0 - Silencer - Google Patents

Silencer

Info

Publication number
SE0003350D0
SE0003350D0 SE0003350A SE0003350A SE0003350D0 SE 0003350 D0 SE0003350 D0 SE 0003350D0 SE 0003350 A SE0003350 A SE 0003350A SE 0003350 A SE0003350 A SE 0003350A SE 0003350 D0 SE0003350 D0 SE 0003350D0
Authority
SE
Sweden
Prior art keywords
attenuation
sound
active
resistive
reactive
Prior art date
Application number
SE0003350A
Other languages
Swedish (sv)
Original Assignee
Flaekt Ab
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 Flaekt Ab filed Critical Flaekt Ab
Priority to SE0003350A priority Critical patent/SE0003350D0/en
Publication of SE0003350D0 publication Critical patent/SE0003350D0/en
Priority to EP01967895A priority patent/EP1319109A1/en
Priority to PCT/SE2001/001983 priority patent/WO2002027118A1/en
Priority to AU2001288178A priority patent/AU2001288178A1/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
    • F24F13/24—Means for preventing or suppressing noise
    • 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
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1785—Methods, e.g. algorithms; Devices
    • G10K11/17861—Methods, e.g. algorithms; Devices using additional means for damping sound, e.g. using sound absorbing panels
    • 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
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1787—General system configurations
    • G10K11/17879—General system configurations using both a reference signal and an error signal
    • G10K11/17881—General system configurations using both a reference signal and an error signal the reference signal being an acoustic signal, e.g. recorded with a microphone
    • 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
    • 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
    • F24F2013/247—Active noise-suppression
    • 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
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/10—Applications
    • G10K2210/104—Aircos
    • 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
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/10—Applications
    • G10K2210/112—Ducts
    • 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
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/30—Means
    • G10K2210/321—Physical
    • G10K2210/3224—Passive absorbers
    • 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
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/50—Miscellaneous
    • G10K2210/509—Hybrid, i.e. combining different technologies, e.g. passive and active

Abstract

A ventilating system for transport of air in environments with requirements concerning sound comprising a plurality of channel sections and a sound-attenuating device comprising both active and passive sound attenuation. The passive sound attenuation comprises a reactive part and a resistive part, and the active, the reactive and the resistive attenuation are adapted to attend to attenuation within separate frequency ranges.
SE0003350A 2000-09-18 2000-09-18 Silencer SE0003350D0 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SE0003350A SE0003350D0 (en) 2000-09-18 2000-09-18 Silencer
EP01967895A EP1319109A1 (en) 2000-09-18 2001-09-17 Sound attenuator
PCT/SE2001/001983 WO2002027118A1 (en) 2000-09-18 2001-09-17 Sound attenuator
AU2001288178A AU2001288178A1 (en) 2000-09-18 2001-09-17 Sound attenuator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0003350A SE0003350D0 (en) 2000-09-18 2000-09-18 Silencer

Publications (1)

Publication Number Publication Date
SE0003350D0 true SE0003350D0 (en) 2000-09-18

Family

ID=20281085

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0003350A SE0003350D0 (en) 2000-09-18 2000-09-18 Silencer

Country Status (4)

Country Link
EP (1) EP1319109A1 (en)
AU (1) AU2001288178A1 (en)
SE (1) SE0003350D0 (en)
WO (1) WO2002027118A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11193693B2 (en) * 2018-09-05 2021-12-07 Denso International America, Inc. Sound suppression chamber for an HVAC air handling assembly
CN111980368B (en) * 2020-08-28 2021-12-28 中国建筑标准设计研究院有限公司 Assembled steel structure combined air duct system and construction method thereof

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2218301B (en) * 1988-04-29 1992-06-03 Gen Electric Co Plc Active noise control
US5283398A (en) * 1989-12-26 1994-02-01 Tsuchiya Mfg. Co., Ltd. Resonator type silencer
US5315661A (en) * 1992-08-12 1994-05-24 Noise Cancellation Technologies, Inc. Active high transmission loss panel
DE4228356C2 (en) * 1992-08-26 1995-10-19 Daimler Benz Aerospace Ag Cavity resonator for noise reduction
WO1995019075A2 (en) * 1993-12-30 1995-07-13 Bolt Beranek And Newman Inc. Active muffler
JP3510427B2 (en) * 1996-08-15 2004-03-29 三菱重工業株式会社 Active sound absorbing wall
AUPP712998A0 (en) * 1998-11-16 1998-12-10 Field, Christopher David Noise attenuation device

Also Published As

Publication number Publication date
EP1319109A1 (en) 2003-06-18
WO2002027118A1 (en) 2002-04-04
AU2001288178A1 (en) 2002-04-08

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