BRPI0816220A2 - Sound attenuation arrangement - Google Patents

Sound attenuation arrangement

Info

Publication number
BRPI0816220A2
BRPI0816220A2 BRPI0816220-4A BRPI0816220A BRPI0816220A2 BR PI0816220 A2 BRPI0816220 A2 BR PI0816220A2 BR PI0816220 A BRPI0816220 A BR PI0816220A BR PI0816220 A2 BRPI0816220 A2 BR PI0816220A2
Authority
BR
Brazil
Prior art keywords
sound attenuation
attenuation arrangement
arrangement
sound
attenuation
Prior art date
Application number
BRPI0816220-4A
Other languages
Portuguese (pt)
Inventor
Ragnar Glav
Mikael Karlsson
Original Assignee
Scania Cv 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 Scania Cv Ab filed Critical Scania Cv Ab
Publication of BRPI0816220A2 publication Critical patent/BRPI0816220A2/en

Links

Classifications

    • 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
    • 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
    • F01N1/02—Silencing apparatus characterised by method of silencing by using resonance
    • 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
    • F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
    • 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
    • F01N1/16—Silencing apparatus characterised by method of silencing by using movable parts
    • F01N1/165—Silencing apparatus characterised by method of silencing by using movable parts for adjusting flow area
    • 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
    • F01N1/16—Silencing apparatus characterised by method of silencing by using movable parts
    • F01N1/166—Silencing apparatus characterised by method of silencing by using movable parts for changing gas flow path through the silencer or for adjusting the dimensions of a chamber or a pipe
    • 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
    • F01N2410/00—By-passing, at least partially, exhaust from inlet to outlet of apparatus, to atmosphere or to other device

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Exhaust Silencers (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
BRPI0816220-4A 2007-09-25 2008-09-18 Sound attenuation arrangement BRPI0816220A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0702130A SE531516C2 (en) 2007-09-25 2007-09-25 Noise-canceling arrangement
PCT/SE2008/051046 WO2009041892A1 (en) 2007-09-25 2008-09-18 Sound-absorbing arrangement

Publications (1)

Publication Number Publication Date
BRPI0816220A2 true BRPI0816220A2 (en) 2015-06-16

Family

ID=40511685

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0816220-4A BRPI0816220A2 (en) 2007-09-25 2008-09-18 Sound attenuation arrangement

Country Status (7)

Country Link
EP (1) EP2195512B1 (en)
KR (1) KR101648526B1 (en)
CN (1) CN101802352B (en)
AU (1) AU2008305782B2 (en)
BR (1) BRPI0816220A2 (en)
SE (1) SE531516C2 (en)
WO (1) WO2009041892A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012109667A1 (en) * 2012-10-11 2014-04-17 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Exhaust system for e.g. sports car, has exhaust gas secondary line whose length is adjusted based on engine speed and exhaust gas temperature, such that exhaust noise is produced from two cylinders of internal combustion engine
PL3242293T3 (en) * 2016-05-04 2019-05-31 Sontech Int Ab A sound damping device for a duct or chamber
KR101867573B1 (en) * 2016-05-23 2018-06-15 현대자동차주식회사 Slip-type active noise control muffler and method for controlling the same
US10071664B2 (en) * 2016-10-21 2018-09-11 Ford Global Technologies, Llc System and method for variable sound dampening in an adjustable vehicle seat
CN112102805A (en) * 2020-08-28 2020-12-18 武汉理工大学 Adjustable impedance combined type silencer and noise elimination system

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4136206A1 (en) * 1991-11-02 1993-05-06 Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart, De EXHAUST SYSTEM OF A MOTOR VEHICLE PISTON ENGINE
DE4341951A1 (en) * 1992-12-17 1994-06-23 Volkswagen Ag Interference noise damper for exhaust gas system
JPH08189330A (en) * 1995-01-10 1996-07-23 Toyota Motor Corp Muffler for internal combustion engine
DE19520157A1 (en) * 1995-06-01 1996-12-05 Wolfgang Lenhardt Motor vehicle exhaust silencer with choke flap
JPH0988568A (en) * 1995-09-26 1997-03-31 Toyota Motor Corp Exhaust device for internal combustion engine
DE19743482A1 (en) * 1997-10-01 1999-04-08 Mann & Hummel Filter Silencer with a shunt resonator
KR100369212B1 (en) * 1999-07-07 2003-01-24 한국과학기술연구원 Method and Apparatus for Controlling Exhaust Noise in Internal Combustion Engine and/or Noise in Duct of Air Delivering System
JP2001140627A (en) * 1999-11-17 2001-05-22 Fuji Heavy Ind Ltd Exhaust silencer for automobile
KR20020074965A (en) * 2001-03-23 2002-10-04 기아자동차주식회사 Structure of a silencer type of frequency variability

Also Published As

Publication number Publication date
EP2195512A1 (en) 2010-06-16
SE531516C2 (en) 2009-05-05
KR20100061568A (en) 2010-06-07
EP2195512B1 (en) 2018-11-28
KR101648526B1 (en) 2016-08-16
AU2008305782B2 (en) 2012-09-06
CN101802352B (en) 2013-03-13
CN101802352A (en) 2010-08-11
EP2195512A4 (en) 2017-11-29
AU2008305782A1 (en) 2009-04-02
WO2009041892A1 (en) 2009-04-02
SE0702130L (en) 2009-03-26

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Legal Events

Date Code Title Description
B08F Application fees: dismissal - article 86 of industrial property law
B08K Lapse as no evidence of payment of the annual fee has been furnished to inpi (acc. art. 87)