EP 2801708 B1 20160120 - Sound Generator for an Anti-noise System for influencing exhaust Noises and/or intake Noises of a Motor Vehicle
Title (en)
Sound Generator for an Anti-noise System for influencing exhaust Noises and/or intake Noises of a Motor Vehicle
Title (de)
Schallerzeuger für ein Antischall-System zur Beeinflussung von Abgasgeräuschen und/oder Ansauggeräuschen eines Kraftfahrzeugs
Title (fr)
Générateur acoustique d'un système antibruit agissant sur les bruits de gaz d'échappement et/ou les bruits d'admission d'un véhicule automobile
Publication
Application
Priority
DE 102013104810 A 20130508
Abstract (en)
[origin: CN104141521A] A sound generator for influencing sound waves propagating in exhaust or intake systems of combustion engine driven vehicles includes: an enclosure having a port opening for communication with an exhaust and/or intake system; a loudspeaker basket supported by the enclosure; a membrane and a permanent magnet supported by the loudspeaker basket; and a voice coil supported by a voice coil carrier. The voice coil is disposed in a constant magnetic field created by the permanent magnet and is connected to the membrane. The membrane is located between the port opening and the permanent magnet. The membrane is funnel-like or dome-like, with the top or top face of the funnel-like membrane or the geometric center of the dome-like membrane facing away from the permanent magnet. An anti-noise system using the sound generator, and a vehicle using the anti-noise system are also provided.
IPC 8 full level
F01N 1/06 (2006.01); G10K 9/22 (2006.01); G10K 13/00 (2006.01); H04R 7/12 (2006.01); H04R 9/06 (2006.01)
CPC (source: EP US)
F01N 1/065 (2013.01 - EP US); F02M 35/125 (2013.01 - EP US); G10K 9/13 (2013.01 - EP US); G10K 11/17833 (2017.12 - EP US); G10K 11/1785 (2017.12 - EP US); G10K 11/17857 (2017.12 - EP US); G10K 11/17883 (2017.12 - EP US); G10K 13/00 (2013.01 - EP US); H04R 1/00 (2013.01 - US); G10K 2210/112 (2013.01 - US); G10K 2210/3212 (2013.01 - EP US)
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 2801708 A1 20141112; EP 2801708 B1 20160120; CN 104141521 A 20141112; CN 104141521 B 20170524; DE 102013104810 A1 20141113; US 2014334633 A1 20141113; US 9374632 B2 20160621
DOCDB simple family (application)
EP 14162199 A 20140328; CN 201410265587 A 20140508; DE 102013104810 A 20130508; US 201414271946 A 20140507