FI75415C - Ljuddaempare. - Google Patents
Ljuddaempare. Download PDFInfo
- 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
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)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8203030A SE450656B (sv) | 1982-05-14 | 1982-05-14 | Ljuddempare for ventilationskanaler eller ventilationsapparater |
SE8203030 | 1982-05-14 |
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 (de) |
DK (1) | DK159669C (de) |
FI (1) | FI75415C (de) |
FR (1) | FR2526860B1 (de) |
GB (1) | GB2122256B (de) |
NO (1) | NO162931C (de) |
SE (1) | SE450656B (de) |
Families Citing this family (19)
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 (de) * | 1990-11-21 | 1998-04-08 | Sound Attenuators Limited | Verbesserungen an schalldämpfern |
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 |
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 |
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)
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 |
-
1982
- 1982-05-14 SE SE8203030A patent/SE450656B/sv not_active IP Right Cessation
-
1983
- 1983-05-03 GB GB08312060A patent/GB2122256B/en not_active Expired
- 1983-05-09 FR FR8307681A patent/FR2526860B1/fr not_active Expired
- 1983-05-09 FI FI831586A patent/FI75415C/fi not_active IP Right Cessation
- 1983-05-11 DE DE19833317273 patent/DE3317273A1/de active Granted
- 1983-05-13 NO NO831722A patent/NO162931C/no not_active IP Right Cessation
- 1983-05-13 DK DK214483A patent/DK159669C/da not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE3317273C2 (de) | 1991-04-11 |
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 |
SE450656B (sv) | 1987-07-13 |
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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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MA | Patent expired |
Owner name: AB BAHCO VENTILATION |