SE450656B - Ljuddempare for ventilationskanaler eller ventilationsapparater - Google Patents

Ljuddempare for ventilationskanaler eller ventilationsapparater

Info

Publication number
SE450656B
SE450656B SE8203030A SE8203030A SE450656B SE 450656 B SE450656 B SE 450656B SE 8203030 A SE8203030 A SE 8203030A SE 8203030 A SE8203030 A SE 8203030A SE 450656 B SE450656 B SE 450656B
Authority
SE
Sweden
Prior art keywords
air flow
intermediate portion
covered
muffler according
unbroken
Prior art date
Application number
SE8203030A
Other languages
English (en)
Swedish (sv)
Other versions
SE8203030L (sv
Inventor
B I Persson
Original Assignee
Bahco Ventilation 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 Bahco Ventilation Ab filed Critical Bahco Ventilation Ab
Priority to SE8203030A priority Critical patent/SE450656B/sv
Priority to GB08312060A priority patent/GB2122256B/en
Priority to FI831586A priority patent/FI75415C/fi
Priority to FR8307681A priority patent/FR2526860B1/fr
Priority to DE19833317273 priority patent/DE3317273A1/de
Priority to NO831722A priority patent/NO162931C/no
Priority to DK214483A priority patent/DK159669C/da
Publication of SE8203030L publication Critical patent/SE8203030L/
Publication of SE450656B publication Critical patent/SE450656B/sv

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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/24—Silencing apparatus characterised by method of silencing by using sound-absorbing materials
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Exhaust Silencers (AREA)
  • Duct Arrangements (AREA)
  • Building Environments (AREA)
SE8203030A 1982-05-14 1982-05-14 Ljuddempare for ventilationskanaler eller ventilationsapparater SE450656B (sv)

Priority Applications (7)

Application Number Priority Date Filing Date Title
SE8203030A SE450656B (sv) 1982-05-14 1982-05-14 Ljuddempare for ventilationskanaler eller ventilationsapparater
GB08312060A GB2122256B (en) 1982-05-14 1983-05-03 Silencing in ventilation ducts
FI831586A FI75415C (fi) 1982-05-14 1983-05-09 Ljuddaempare.
FR8307681A FR2526860B1 (fr) 1982-05-14 1983-05-09 Amortisseur de bruit
DE19833317273 DE3317273A1 (de) 1982-05-14 1983-05-11 Schalldaempfer
NO831722A NO162931C (no) 1982-05-14 1983-05-13 Lyddemper.
DK214483A DK159669C (da) 1982-05-14 1983-05-13 Lyddaemper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8203030A SE450656B (sv) 1982-05-14 1982-05-14 Ljuddempare for ventilationskanaler eller ventilationsapparater

Publications (2)

Publication Number Publication Date
SE8203030L SE8203030L (sv) 1983-11-15
SE450656B true SE450656B (sv) 1987-07-13

Family

ID=20346812

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8203030A SE450656B (sv) 1982-05-14 1982-05-14 Ljuddempare for ventilationskanaler eller ventilationsapparater

Country Status (7)

Country Link
DE (1) DE3317273A1 (no)
DK (1) DK159669C (no)
FI (1) FI75415C (no)
FR (1) FR2526860B1 (no)
GB (1) GB2122256B (no)
NO (1) NO162931C (no)
SE (1) SE450656B (no)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0916906A2 (en) * 1997-11-10 1999-05-19 Stifab Farex AB A sound absorber for ventilation ducts
EP0921358A2 (en) * 1997-11-03 1999-06-09 Stifab Farex AB A baffel for sound absorbers

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3934756A1 (de) * 1989-10-18 1991-04-25 Kuehnle Kopp Kausch Ag Vorrichtung zur daempfung der von einem axialventilator in eine druckleitung abgestrahlten geraeusche
FI91995C (fi) * 1990-11-20 1994-09-12 Valmet Paper Machinery Inc Absorptiivinen äänenvaimennin, etenkin paperitehtaiden ilmakanaviin
EP0558472B1 (en) * 1990-11-21 1998-04-08 Sound Attenuators Limited Improvements in attenuators
GB2267731A (en) * 1992-06-10 1993-12-15 Lancaster Glass Fibre Sound absorber insert for an exhaust silencer.
SE9604664L (sv) 1996-12-19 1998-01-19 Flaekt Ab Anordning och förfarande för ljudminskning i ett transportsystem för gasformigt medium samt användning av anordningen vid ett avgassystem för fartyg
US5801342A (en) * 1997-01-27 1998-09-01 Lindab Ab Double-walled structure and method and arrangement for producing the same
US6062270A (en) * 1997-01-27 2000-05-16 Lindab Ab Double-walled structure in a ventilation duct system
EP0897083A3 (de) * 1997-08-14 2000-03-29 Müller-BBM GmbH Ultraschalldämpfer
US6073723A (en) * 1998-06-05 2000-06-13 Gallo; Anthony Acoustic damping material
SE521395C2 (sv) * 1998-07-10 2003-10-28 Lindab Ab Dubbelväggig konstruktion i ett ventilationskanalsystem samt användning av ett tunnplåtsband
US6543575B1 (en) 2000-06-14 2003-04-08 Lindab Ab Double-walled structure and connection arrangement
FI122523B (fi) 2008-04-30 2012-03-15 Metso Paper Inc Matalien taajuksien äänenvaimennin, menetelmä matalien taajuuksien äänenvaimentimen valmistamiseksi ja järjestelmä matalien taajuuksien vaimentamiseksi esimerkiksi paperitehtaiden ilmastointikanavissa
WO2014076355A1 (en) 2012-11-15 2014-05-22 Wärtsilä Finland Oy An exhaust gas noise attenuator unit for internal combustion piston engine
GB2519749B (en) * 2013-10-24 2015-08-05 Bentley Motors Ltd Tyre cavity noise absorber
GB2528950A (en) 2014-08-06 2016-02-10 Aaf Ltd Sound suppression apparatus
EP3610205A1 (de) * 2017-04-14 2020-02-19 Fraunhofer Gesellschaft zur Förderung der Angewand Kulissenschalldämpferanordnung mit schallabsorbierenden stirnseiten
JP6851404B2 (ja) * 2018-01-31 2021-03-31 富士フイルム株式会社 消音換気構造

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2019416B2 (de) * 1970-04-22 1972-04-20 Isoliertechnik Horst Grassmann, 6000 Frankfurt Schalldaempfer fuer stroemende gase
GB1423986A (en) * 1972-02-21 1976-02-04 Colchester Woods Sound attenuating units for ventilating openings
US3776364A (en) * 1972-04-28 1973-12-04 Donaldson Co Inc Noise reduction apparatus and method
GB1432206A (en) * 1973-06-29 1976-04-14 Caterpillar Tractor Co Sound attenuating engine enclosures for vehicles
DE2513946C2 (de) * 1975-03-29 1981-11-26 Gebrüder Trox, GmbH, 4133 Neukirchen-Vluyn Kulissenschalldämpfer
DE2630056A1 (de) * 1975-07-30 1977-02-17 Industrial Acoustics Co Schalldaempfer
GB1570074A (en) * 1977-07-13 1980-06-25 British Gas Corp Ventilators
US4287962A (en) * 1977-11-14 1981-09-08 Industrial Acoustics Company Packless silencer
DE3202078A1 (de) * 1982-01-23 1983-08-04 IT - Isoliertechnik und Schallschutz GmbH, 4830 Gütersloh Schalldaempfer-kulisse

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0921358A2 (en) * 1997-11-03 1999-06-09 Stifab Farex AB A baffel for sound absorbers
EP0921358A3 (en) * 1997-11-03 1999-06-23 Stifab Farex AB A baffel for sound absorbers
EP0916906A2 (en) * 1997-11-10 1999-05-19 Stifab Farex AB A sound absorber for ventilation ducts
EP0916906A3 (en) * 1997-11-10 1999-06-23 Stifab Farex AB A sound absorber for ventilation ducts

Also Published As

Publication number Publication date
DE3317273C2 (no) 1991-04-11
FI75415C (fi) 1988-06-09
FI75415B (fi) 1988-02-29
GB2122256A (en) 1984-01-11
DK159669B (da) 1990-11-12
DE3317273A1 (de) 1983-11-17
NO162931B (no) 1989-11-27
DK159669C (da) 1991-04-15
FR2526860A1 (fr) 1983-11-18
NO162931C (no) 1990-03-07
FI831586A0 (fi) 1983-05-09
DK214483A (da) 1983-11-15
SE8203030L (sv) 1983-11-15
GB2122256B (en) 1985-11-13
DK214483D0 (da) 1983-05-13
NO831722L (no) 1983-11-15
FI831586L (fi) 1983-11-15
GB8312060D0 (en) 1983-06-08
FR2526860B1 (fr) 1989-06-16

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