FI75415C - Ljuddaempare. - Google Patents

Ljuddaempare. Download PDF

Info

Publication number
FI75415C
FI75415C FI831586A FI831586A FI75415C FI 75415 C FI75415 C FI 75415C FI 831586 A FI831586 A FI 831586A FI 831586 A FI831586 A FI 831586A FI 75415 C FI75415 C FI 75415C
Authority
FI
Finland
Prior art keywords
intermediate part
silencer according
covered
intact
air flow
Prior art date
Application number
FI831586A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI75415B (fi
FI831586L (fi
FI831586A0 (fi
Inventor
Berit Irene 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
Publication of FI831586A0 publication Critical patent/FI831586A0/fi
Publication of FI831586L publication Critical patent/FI831586L/fi
Publication of FI75415B publication Critical patent/FI75415B/fi
Application granted granted Critical
Publication of FI75415C publication Critical patent/FI75415C/fi

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)
FI831586A 1982-05-14 1983-05-09 Ljuddaempare. FI75415C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8203030 1982-05-14
SE8203030A SE450656B (sv) 1982-05-14 1982-05-14 Ljuddempare for ventilationskanaler eller ventilationsapparater

Publications (4)

Publication Number Publication Date
FI831586A0 FI831586A0 (fi) 1983-05-09
FI831586L FI831586L (fi) 1983-11-15
FI75415B FI75415B (fi) 1988-02-29
FI75415C true FI75415C (fi) 1988-06-09

Family

ID=20346812

Family Applications (1)

Application Number Title Priority Date Filing Date
FI831586A FI75415C (fi) 1982-05-14 1983-05-09 Ljuddaempare.

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)

Families Citing this family (19)

* 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.
SE506618C2 (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
SE511627C2 (sv) * 1997-11-03 1999-11-01 Stifab Farex Ab Baffel för ljuddämpere för rektangulära ventilationskanaler
SE511628C2 (sv) * 1997-11-10 1999-11-01 Stifab Farex Ab Ljuddämpare med bafflar för rektangulära ventilationskanaler
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
CN110770511A (zh) * 2017-04-14 2020-02-07 弗劳恩霍夫应用研究促进协会 具有吸声式端侧的分流消声器组件
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

Also Published As

Publication number Publication date
NO831722L (no) 1983-11-15
NO162931C (no) 1990-03-07
GB2122256A (en) 1984-01-11
SE450656B (sv) 1987-07-13
FI75415B (fi) 1988-02-29
DE3317273C2 (no) 1991-04-11
DK214483A (da) 1983-11-15
DK159669B (da) 1990-11-12
GB2122256B (en) 1985-11-13
FI831586L (fi) 1983-11-15
FR2526860A1 (fr) 1983-11-18
DE3317273A1 (de) 1983-11-17
SE8203030L (sv) 1983-11-15
FI831586A0 (fi) 1983-05-09
DK214483D0 (da) 1983-05-13
NO162931B (no) 1989-11-27
FR2526860B1 (fr) 1989-06-16
DK159669C (da) 1991-04-15
GB8312060D0 (en) 1983-06-08

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Legal Events

Date Code Title Description
MA Patent expired

Owner name: AB BAHCO VENTILATION