SE0000559L - Double-walled construction and ways of manufacturing the same - Google Patents
Double-walled construction and ways of manufacturing the sameInfo
- Publication number
- SE0000559L SE0000559L SE0000559A SE0000559A SE0000559L SE 0000559 L SE0000559 L SE 0000559L SE 0000559 A SE0000559 A SE 0000559A SE 0000559 A SE0000559 A SE 0000559A SE 0000559 L SE0000559 L SE 0000559L
- Authority
- SE
- Sweden
- Prior art keywords
- inner tube
- double
- same
- ways
- manufacturing
- 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
- F24F13/02—Ducting arrangements
- F24F13/0263—Insulation for air ducts
-
- 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
- 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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
-
- 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
- F24F13/02—Ducting arrangements
- F24F13/0245—Manufacturing or assembly of air ducts; Methods therefor
-
- 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
- F24F13/02—Ducting arrangements
- F24F13/0281—Multilayer duct
-
- 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Exhaust Silencers (AREA)
- Pipe Accessories (AREA)
Abstract
A double-walled-structure, such as a silencer for use in a ventilation duct system, comprises a perforated inner tube (10), an outer casing (30) which is arranged at a distance from the inner tube (10) and encloses the same, and a tubular, sound-absorbing element (20) which is arranged between the inner tube (10) and the casing (30). The tubular element (20) has an increasing density radially outwards from the centre axis (C) of the inner tube (10). The silencer (1) is produced by the sound-absorbing element (20) being arranged on the inner tube (10), and the inner tube (10) with the sound-absorbing element arranged thereon being enclosed in the surrounding outer casing (30). <IMAGE>
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0000559A SE515765C2 (en) | 2000-02-22 | 2000-02-22 | Double-walled construction and ways of manufacturing the same |
EP01850037A EP1128032A2 (en) | 2000-02-22 | 2001-02-21 | Double-walled structure and method of producing the same |
US09/789,979 US20010015302A1 (en) | 2000-02-22 | 2001-02-21 | Double-walled structure and method of producing the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0000559A SE515765C2 (en) | 2000-02-22 | 2000-02-22 | Double-walled construction and ways of manufacturing the same |
Publications (3)
Publication Number | Publication Date |
---|---|
SE0000559D0 SE0000559D0 (en) | 2000-02-22 |
SE0000559L true SE0000559L (en) | 2001-08-23 |
SE515765C2 SE515765C2 (en) | 2001-10-08 |
Family
ID=20278529
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE0000559A SE515765C2 (en) | 2000-02-22 | 2000-02-22 | Double-walled construction and ways of manufacturing the same |
Country Status (3)
Country | Link |
---|---|
US (1) | US20010015302A1 (en) |
EP (1) | EP1128032A2 (en) |
SE (1) | SE515765C2 (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1411218A3 (en) * | 2002-10-15 | 2004-05-26 | ATJ Autotechnik Gmbh | Method for manufacturing insulated bodies |
DE10248781B3 (en) * | 2002-10-15 | 2004-02-19 | Atj Autotechnik Gmbh | Production of an insulated body comprises providing a body with a temperature and/or sound insulation, applying a layer of insulating material on the surface of the body by winding and applying a metal layer on the surface of the wound |
DE602005021165D1 (en) * | 2005-05-31 | 2010-06-17 | Carrier Corp | METHOD AND DEVICE FOR REDUCING THE NOISE LEVEL SUBJECTED BY AN OIL SEPARATOR |
US10753627B1 (en) | 2005-07-13 | 2020-08-25 | Qc Manufacturing, Inc. | Air cooling system for a building structure |
US7546899B2 (en) * | 2005-10-05 | 2009-06-16 | Arrowhead Products Corporation | Lightweight polymer muffler apparatus and method of making same |
US8393436B2 (en) * | 2011-04-15 | 2013-03-12 | Arrowhead Products Corporation | Flexible muffler for use in aircraft environmental control systems and method of manufacture |
US9382826B1 (en) * | 2015-01-09 | 2016-07-05 | Dayco Ip Holdings, Llc | Noise attenuating member for noise attenuating units in engines |
US9567087B1 (en) * | 2015-12-16 | 2017-02-14 | Hamilton Sundstrand Corporation | Honeycomb acoustic liner |
US10980391B2 (en) | 2017-04-28 | 2021-04-20 | Owens Corning Intellectual Capital, Llc | Appliance with acoustically insulated ductwork |
RU191178U1 (en) * | 2019-01-24 | 2019-07-29 | Антон Геннадьевич Вайс | SOUNDED AIR DUCT |
WO2021102022A1 (en) | 2019-11-22 | 2021-05-27 | Qc Manufacturing, Inc. | Fresh air cooling and ventilating system |
JP7405672B2 (en) * | 2020-03-30 | 2023-12-26 | イビデン株式会社 | Silencer for combustion equipment |
CN212899157U (en) | 2020-07-27 | 2021-04-06 | 开利公司 | Noise reduction device for fan outlet side and heat exchange system comprising same |
-
2000
- 2000-02-22 SE SE0000559A patent/SE515765C2/en not_active IP Right Cessation
-
2001
- 2001-02-21 EP EP01850037A patent/EP1128032A2/en not_active Withdrawn
- 2001-02-21 US US09/789,979 patent/US20010015302A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
US20010015302A1 (en) | 2001-08-23 |
EP1128032A2 (en) | 2001-08-29 |
SE515765C2 (en) | 2001-10-08 |
SE0000559D0 (en) | 2000-02-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |