DE50207500D1 - MUFFLER - Google Patents

MUFFLER

Info

Publication number
DE50207500D1
DE50207500D1 DE50207500T DE50207500T DE50207500D1 DE 50207500 D1 DE50207500 D1 DE 50207500D1 DE 50207500 T DE50207500 T DE 50207500T DE 50207500 T DE50207500 T DE 50207500T DE 50207500 D1 DE50207500 D1 DE 50207500D1
Authority
DE
Germany
Prior art keywords
silencer
cleanability
silencers
technologically
shocks
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
DE50207500T
Other languages
German (de)
Inventor
Helmut Fuchs
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Original Assignee
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
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 Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV filed Critical Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Priority to DE50207500T priority Critical patent/DE50207500D1/en
Application granted granted Critical
Publication of DE50207500D1 publication Critical patent/DE50207500D1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/001—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by provisions for heat or sound insulation
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/34—Grid-like or open-work ceilings, e.g. lattice type box-like modules, acoustic baffles
    • E04B9/36—Grid-like or open-work ceilings, e.g. lattice type box-like modules, acoustic baffles consisting of parallel slats
    • E04B9/366—Grid-like or open-work ceilings, e.g. lattice type box-like modules, acoustic baffles consisting of parallel slats the principal plane of the slats being vertical
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/162—Selection of materials
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/172—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using resonance effects

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Architecture (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Exhaust Silencers (AREA)

Abstract

Disclosed is a silencer which can operate without the use of a porous or fibrous material, but which has the same wideband effect as traditional silencers at the same construction depth. The inventive silencer is entirely made of thin microperforated surface structures and is characterized technologically by smooth, almost closed surfaces, light weight, low sensitivity with regard to shocks and temperature stress, in addition to cleanability and high flexibility when used in motors and machines.
DE50207500T 2001-04-27 2002-04-26 MUFFLER Expired - Lifetime DE50207500D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE50207500T DE50207500D1 (en) 2001-04-27 2002-04-26 MUFFLER

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10120727 2001-04-27
PCT/EP2002/004636 WO2002089110A1 (en) 2001-04-27 2002-04-26 Silencer
DE50207500T DE50207500D1 (en) 2001-04-27 2002-04-26 MUFFLER

Publications (1)

Publication Number Publication Date
DE50207500D1 true DE50207500D1 (en) 2006-08-24

Family

ID=7682968

Family Applications (1)

Application Number Title Priority Date Filing Date
DE50207500T Expired - Lifetime DE50207500D1 (en) 2001-04-27 2002-04-26 MUFFLER

Country Status (4)

Country Link
EP (1) EP1382031B1 (en)
AT (1) ATE333134T1 (en)
DE (1) DE50207500D1 (en)
WO (1) WO2002089110A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10337110A1 (en) * 2003-08-11 2005-03-17 Zeuna-Stärker GmbH & Co. KG Internal combustion engine silencer for use on road vehicle has straight-through pipe with perforations surrounded by outer housing with perforated tubes acting as damping chambers
EP1507071B2 (en) * 2003-08-11 2019-10-16 Faurecia Emissions Control Technologies, Germany GmbH Exhaust silencer
EP1953354A1 (en) * 2003-08-11 2008-08-06 ArvinMeritor Emissions Technologies GmbH Exhaust silencer
PL1878008T3 (en) 2005-03-18 2014-03-31 Tumane Enterprises Ltd A sound dampening flow channel device
DE102014226266A1 (en) 2014-12-17 2016-06-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Insulating and filtering material and its use as an inert sound-absorbing material
CN107204182A (en) * 2017-07-06 2017-09-26 江苏华强新能源科技有限公司 A kind of Novel muffler
CN108665886B (en) * 2018-05-23 2024-05-14 南京邮电大学 Rigid ultrathin perforated plate absorber with resonance sound absorption structure

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4312885A1 (en) * 1993-04-20 1994-10-27 Fraunhofer Ges Forschung Counter-ceiling
DE19626676A1 (en) * 1996-07-03 1998-01-08 Kaefer Isoliertechnik Device for reducing sound levels in buildings
DE19754107C1 (en) * 1997-12-05 1999-02-25 Fraunhofer Ges Forschung Sound absorber, for suspension from ceiling

Also Published As

Publication number Publication date
WO2002089110A1 (en) 2002-11-07
ATE333134T1 (en) 2006-08-15
EP1382031B1 (en) 2006-07-12
EP1382031A1 (en) 2004-01-21

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition