EP 0454601 B1 19960306 - Process for damping acoustic waves in a circuit of circulating fluid
Title (en)
Process for damping acoustic waves in a circuit of circulating fluid
Title (de)
Verfahren zur Dämpfung von akustischen Wellen in einem Kreis von zirkulierender Flüssigkeit
Title (fr)
Procédé pour l'atténuation des ondes acoustiques dans un circuit de circulation de fluide
Publication
Application
Priority
FR 9005595 A 19900425
Abstract (en)
[origin: EP0454601A1] The process involves the insertion of at least one transducer into the wall of a pipe belonging to this circuit. The transducer causes the wall to vibrate, thus creating an active moving wall whose radial displacements are in phase opposition to the local acoustic pressure. This produces a condition in which the acoustic waves are not propagated so that waves coming from the pipe towards the transducer are reflected. <IMAGE>
IPC 1-7
IPC 8 full level
G10K 11/178 (2006.01)
CPC (source: EP US)
G10K 11/17857 (2017.12 - EP US); G10K 11/17875 (2017.12 - EP US); G10K 2210/101 (2013.01 - EP); G10K 2210/112 (2013.01 - EP); G10K 2210/129 (2013.01 - EP); G10K 2210/3212 (2013.01 - EP)
Designated contracting state (EPC)
AT BE CH DE DK ES GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0454601 A1 19911030; EP 0454601 B1 19960306; AT E135131 T1 19960315; DE 69117571 D1 19960411; DE 69117571 T2 19960822; FR 2661540 A1 19911031; FR 2661540 B1 19961031
DOCDB simple family (application)
EP 91440031 A 19910418; AT 91440031 T 19910418; DE 69117571 T 19910418; FR 9005595 A 19900425