SE0000559L - Double-walled construction and ways of manufacturing the same - Google Patents

Double-walled construction and ways of manufacturing the same

Info

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
Application number
SE0000559A
Other languages
Swedish (sv)
Other versions
SE515765C2 (en
SE0000559D0 (en
Inventor
Mats Lundgren
Original Assignee
Lindab 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 Lindab Ab filed Critical Lindab Ab
Priority to SE0000559A priority Critical patent/SE515765C2/en
Publication of SE0000559D0 publication Critical patent/SE0000559D0/en
Priority to EP01850037A priority patent/EP1128032A2/en
Priority to US09/789,979 priority patent/US20010015302A1/en
Publication of SE0000559L publication Critical patent/SE0000559L/en
Publication of SE515765C2 publication Critical patent/SE515765C2/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
    • F24F13/02—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>
SE0000559A 2000-02-22 2000-02-22 Double-walled construction and ways of manufacturing the same SE515765C2 (en)

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)

* Cited by examiner, † Cited by third party
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

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