EP 1134361 B1 20060531 - Turbo machine having a device for suppression of vibrations
Title (en)
Turbo machine having a device for suppression of vibrations
Title (de)
Turbomaschine mit einer Vorrichtung zur Unterdrückung von Schwingungen
Title (fr)
Turbomachine comportant un dispositif de suppression des vibrations
Publication
Application
Priority
FR 0003490 A 20000317
Abstract (en)
[origin: EP1134361A1] The turbine, having a symmetrical wall surrounding its blades (6) with apertures (13) linked to an outer cavity (11), incorporates a symmetry breaker in the cavity to prevent acoustic resonance at certain turbine speeds. The symmetry breaker is in the form of a section of tube (15) fitted with a pre-stressed locking force inside the cavity, or a part of the cavity's outer wall with a convex surface projecting into the cavity.
IPC 8 full level
F01D 25/04 (2006.01); F04D 29/44 (2006.01); F01D 17/10 (2006.01); F04D 29/42 (2006.01); F04D 29/66 (2006.01)
CPC (source: EP US)
F01D 17/105 (2013.01 - EP US); F01D 25/04 (2013.01 - EP US); F04D 29/4213 (2013.01 - EP US); F04D 29/663 (2013.01 - EP US); F05D 2220/40 (2013.01 - EP US); F05D 2260/96 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1134361 A1 20010919; EP 1134361 B1 20060531; AT E328192 T1 20060615; CA 2341839 A1 20010917; CA 2341839 C 20080923; CY 1105534 T1 20100728; DE 60120017 D1 20060706; DE 60120017 T2 20061005; DK 1134361 T3 20061002; ES 2261357 T3 20061116; FR 2806442 A1 20010921; FR 2806442 B1 20030110; JP 2001317497 A 20011116; JP 4719368 B2 20110706; PT 1134361 E 20060929; US 2001036402 A1 20011101; US 6450761 B2 20020917
DOCDB simple family (application)
EP 01400573 A 20010306; AT 01400573 T 20010306; CA 2341839 A 20010316; CY 061101225 T 20060830; DE 60120017 T 20010306; DK 01400573 T 20010306; ES 01400573 T 20010306; FR 0003490 A 20000317; JP 2001075980 A 20010316; PT 01400573 T 20010306; US 80818901 A 20010315