Global Patent Index - EP 1460243 B1

EP 1460243 B1 20060920 - Acoustic silencing system

Title (en)

Acoustic silencing system

Title (de)

Schalldämpfungsanlage

Title (fr)

Système d'atténuation acoustique

Publication

EP 1460243 B1 20060920 (FR)

Application

EP 04290399 A 20040213

Priority

FR 0303397 A 20030320

Abstract (en)

[origin: EP1460243A1] The system (1) has a derivation device with a closing unit provided on an exhaust pipe (2). The closing unit in the pipe is closed to deflect a flow into a tube communicating with a cavity, when an acoustic unit (4) is in silencer configuration. A closing unit in another tube is closed and the closing unit in the pipe is opened, when the acoustic unit is in resonator configuration. An independent claim is also included for a method of using a derivation device.

IPC 8 full level

F01N 1/02 (2006.01); F01N 1/16 (2006.01); F01N 13/02 (2010.01)

CPC (source: EP)

F01N 1/02 (2013.01); F01N 1/16 (2013.01)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

DOCDB simple family (publication)

EP 1460243 A1 20040922; EP 1460243 B1 20060920; AT E340304 T1 20061015; DE 602004002419 D1 20061102; DE 602004002419 T2 20070503; FR 2852625 A1 20040924; FR 2852625 B1 20070112

DOCDB simple family (application)

EP 04290399 A 20040213; AT 04290399 T 20040213; DE 602004002419 T 20040213; FR 0303397 A 20030320