EP 3167170 A2 20170517 - SOUND ATTENUATION DEVICE AND METHOD
Title (en)
SOUND ATTENUATION DEVICE AND METHOD
Title (de)
SCHALLDÄMPFUNGSVORRICHTUNG UND -VERFAHREN
Title (fr)
DISPOSITIF ET MÉTHODE D'ATTÉNUATION DU SON
Publication
Application
Priority
- FR 1456686 A 20140710
- EP 2015065678 W 20150709
Abstract (en)
[origin: WO2016005489A2] The invention relates, in particular, to an attenuation device intended for attenuating sound waves generated by a source (1) emitting sound waves of which the frequencies are between f1 and f2 and of which the pressure levels are between n1 and n2, the attenuation device comprising at least one sound absorber (11) comprising at least one non-linear membrane; - the attenuation device being configured such that the first face (13) of the absorber (11) is in acoustic communication with the source (1); - the attenuation device comprises at least one coupling element (16) for coupling the second face (14) with the source (1), the coupling element (16) being configured to transmit, to the second face (14), sound waves depending on the sound waves emitted by the source (1), and of which the phase and/or the amplitude results in a pressure differential of the sound waves arriving at the first and second faces respectively at the same time. The invention also comprises a sound attenuation system and method.
IPC 8 full level
F01N 1/20 (2006.01); F02M 35/12 (2006.01); F16L 55/033 (2006.01); G10K 11/16 (2006.01); G10K 11/175 (2006.01)
CPC (source: EP US)
F02M 35/1255 (2013.01 - EP US); G10K 11/002 (2013.01 - US); G10K 11/161 (2013.01 - EP US); G10K 11/175 (2013.01 - EP US); G10K 11/17857 (2017.12 - EP US); G10K 11/17875 (2017.12 - EP US); F02M 35/125 (2013.01 - EP US); F02M 35/1266 (2013.01 - EP US); F02M 35/1272 (2013.01 - EP US); G10K 2210/1282 (2013.01 - US); G10K 2210/3219 (2013.01 - EP US)
Citation (search report)
See references of WO 2016005489A2
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2016005489 A2 20160114; WO 2016005489 A3 20160512; EP 3167170 A2 20170517; FR 3023645 A1 20160115; FR 3023645 B1 20200228; US 10522128 B2 20191231; US 2017249933 A1 20170831
DOCDB simple family (application)
EP 2015065678 W 20150709; EP 15736467 A 20150709; FR 1456686 A 20140710; US 201515324286 A 20150709