Global Patent Index - EP 1060328 B1

EP 1060328 B1 2002-09-11 - A SILENCER

Title (en)

A SILENCER

Title (de)

SCHALLDÄMPFER

Title (fr)

SILENCIEUX

Publication

EP 1060328 B1 (EN)

Application

EP 98963397 A

Priority

  • DK 9800588 W
  • DK 155997 A

Abstract (en)

[origin: WO9935378A1] A silencing apparatus which is throughflowed by a gas and which is arranged within a pipe or duct system, the gas flow at one or more stages within the apparatus being divided into three or more preferably substantially parallel subflows, each or substantially each subflow throughflowing a silencing element (6a...) causing reflective silencing provided by changes in cross section area, said silencing elements being arranged beside each other within an outer envelope, at least 80 % of the volume inside said envelope being constituted by air, gas and/or solid materials, and at least a major part of said volume having silencing functions, said subflows merging downstream of said silencing elements, either within said apparatus or further downstream in said pipe or duct system.

IPC 1-7 (main, further and additional classification)

F01N 1/08; F01N 1/10; F01N 7/04

IPC 8 full level (invention and additional information)

F01N 1/02 (2006.01); F01N 1/08 (2006.01); F01N 1/10 (2006.01); F01N 1/24 (2006.01); F01N 3/28 (2006.01)

CPC (invention and additional information)

F01N 1/10 (2013.01); F01N 1/02 (2013.01); F01N 1/089 (2013.01); F01N 1/24 (2013.01); F01N 3/2885 (2013.01); F01N 2470/30 (2013.01); F01N 2490/15 (2013.01); F01N 2490/155 (2013.01)

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI NL PT SE

DOCDB simple family

WO 9935378 A1 19990715; AT 224003 T 20020915; AU 1869699 A 19990726; DE 69807942 D1 20021017; DE 69807942 T2 20030430; EP 1060328 A1 20001220; EP 1060328 B1 20020911