EP 2594853 B1 20170118 - A low-noise fume extractor hood.
Title (en)
A low-noise fume extractor hood.
Title (de)
Dampfabzugshaube mit geringer Geräuschentwicklung
Title (fr)
Hotte de captation des fumées à faible bruit
Publication
Application
Priority
IT AN20110156 A 20111121
Abstract (en)
[origin: EP2594853A1] A fume extractor hood (1) is disclosed, comprising a box (2) with a motor-fan assembly and a muffler module (4) comprising a bearing frame defining an air extraction conduit (C) with axis (A), an active noise suppression system comprising at least one electro-acoustic transducer (5) and at least two microphones (6, 7), a passive noise suppression system comprising a sound absorbent material (49). Said muffler module (4) comprises at least two electro-acoustic transducers (5) connected to the walls (40) of said bearing frame, in opposite positions, in such manner to leave the central part of said conduit (C) free. The sound beams coming from said at least two electro-acoustic transducers (5) are mutually combined, obtaining a resulting sound beam that can be directed towards a preferred direction by means of beam forming algorithms.
IPC 8 full level
F24C 15/20 (2006.01); B08B 15/02 (2006.01); G10K 11/178 (2006.01)
CPC (source: EP US)
B08B 15/02 (2013.01 - EP); F24C 15/20 (2013.01 - EP US); G10K 11/17857 (2017.12 - EP US); G10K 11/17861 (2017.12 - EP US); G10K 11/17881 (2017.12 - EP US); G10K 2210/105 (2013.01 - EP); G10K 2210/111 (2013.01 - EP); G10K 2210/1291 (2013.01 - EP)
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
DOCDB simple family (publication)
EP 2594853 A1 20130522; EP 2594853 B1 20170118; IT AN20120079 U1 20130522
DOCDB simple family (application)
EP 12192948 A 20121116; IT AN20120079 U 20121114