BRPI0816220A2 - Sound attenuation arrangement - Google Patents

Sound attenuation arrangement

Info

Publication number: BRPI0816220A2
Authority: BR; Brazil
Prior art keywords: sound attenuation; attenuation arrangement; arrangement; sound; attenuation
Prior art date: 2007-09-25

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.)

2007-09-25

Filing date

2008-09-18

Publication date

2015-06-16

2008-09-18 Application filed by Scania Cv Ab filed Critical Scania Cv Ab

2015-06-16 Publication of BRPI0816220A2 publication Critical patent/BRPI0816220A2/en

Classifications

- 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
- 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
- F01N1/08—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 (7)

* 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
ES2710337T3 (en) *	2016-05-04	2019-04-24	Sontech Int Ab	Sound dampening device for a duct or camera
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
CN112102805B (en) *	2020-08-28	2024-05-14	武汉理工大学	Impedance-adjustable composite muffler and noise elimination system
CN114791113B (en) *	2021-01-26	2025-06-06	佛山市顺德区美的洗涤电器制造有限公司	Noise reduction components and hoods
CN118775051B (en) *	2024-08-06	2025-02-11	广东省富电康柴油发电机有限公司	Intelligent sound-absorbing and heat-insulated diesel generator set

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	Automotive exhaust silencer
KR20020074965A (en) *	2001-03-23	2002-10-04	기아자동차주식회사	Structure of a silencer type of frequency variability

2007
- 2007-09-25 SE SE0702130A patent/SE531516C2/en unknown
2008
- 2008-09-18 WO PCT/SE2008/051046 patent/WO2009041892A1/en active Application Filing
- 2008-09-18 KR KR1020107009125A patent/KR101648526B1/en not_active Expired - Fee Related
- 2008-09-18 BR BRPI0816220-4A patent/BRPI0816220A2/en not_active IP Right Cessation
- 2008-09-18 CN CN2008801078580A patent/CN101802352B/en not_active Expired - Fee Related
- 2008-09-18 AU AU2008305782A patent/AU2008305782B2/en not_active Ceased
- 2008-09-18 EP EP08834479.1A patent/EP2195512B1/en active Active

Also Published As

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

Publication	Publication Date	Title
DE602008005826D1 (en)	2011-05-12	Sound input device
DK2177045T3 (en)	2012-07-23	Improved ear unit
BRPI0818884A2 (en)	2015-05-05	SOUND ABSORBER
DK2338287T3 (en)	2013-10-07	transducer
BRPI0907225A2 (en)	2015-07-14	Sound reference signal arrangement
EP2014237A4 (en)	2010-01-20	ULTRASOUND
EP2304409A4 (en)	2015-08-12	TRANSDUCER MODULE
DK2277021T3 (en)	2020-08-17	ACOUSTIC HOLOGRAPHY
EP2051523A4 (en)	2011-06-15	RECEIVER
DE112007002873A5 (en)	2009-10-08	Decoupler assembly
BRPI0922059A2 (en)	2015-12-15	anti-noise panel.
EP2012043A4 (en)	2012-12-26	DAMPER
EP2033391A4 (en)	2010-09-29	ALTBOC RECEIVER
DE602007003775D1 (en)	2010-01-28	speaker
DE602007010404D1 (en)	2010-12-23	ultrasound system
BRPI0914002A2 (en)	2015-10-27	flexible damping invertertebral spacer device
FR2922075B1 (en)	2011-07-22	ACOUSTIC HELMET
DE602007002875D1 (en)	2009-12-03	ULTRASOUND EINSPRITZVENTIL
DE502007001052D1 (en)	2009-08-27	damper
IT1393670B1 (en)	2012-05-08	CANCELLATION DEVICE
BRPI0812046A2 (en)	2015-08-04	Acoustic pane
DE602008005054D1 (en)	2011-04-07	ultrasound system
DK1886058T3 (en)	2014-06-23	Sound attenuation device
DE602006010031D1 (en)	2009-12-10	Adaptive scan-compression architecture
BRPI0816220A2 (en)	2015-06-16	Sound attenuation arrangement

Legal Events

Date	Code	Title	Description
2017-07-25	B08F	Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]
2017-11-21	B08K	Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]