EP 1924805 A1 20080528 - METHOD AND APPARATUS FOR DAMPING OF THERMO-ACOUSTIC OSCILLATIONS, IN PARTICULAR IN A GAS TURBINE
Title (en)
METHOD AND APPARATUS FOR DAMPING OF THERMO-ACOUSTIC OSCILLATIONS, IN PARTICULAR IN A GAS TURBINE
Title (de)
VERFAHREN UND VORRICHTUNG ZUR DÄMPFUNG THERMO-AKUSTISCHER SCHWINGUNGEN, INSBESONDERE IN EINER GASTURBINE
Title (fr)
PROCEDE ET DISPOSITIF POUR L'AMORTISSEMENT D'OSCILLATIONS THERMO-ACOUSTIQUES, NOTAMMENT DANS UNE TURBINE A GAZ
Publication
Application
Priority
- EP 2006065137 W 20060808
- EP 05019897 A 20050913
- EP 06792726 A 20060808
Abstract (en)
[origin: EP1762786A1] Method involves inducing thermo-acoustic oscillations (60) in a cavity (46), which is inclined with respect to thermo-acoustic oscillations. A part of thermo-acoustic oscillations are decoupled from the cavity and coupled in the resonator volume (42), whereby the resonator volume produces damping oscillations (62) which are matched to the thermo-acoustic oscillations. A part of the damping oscillations is coupled in the cavity in such a manner that the damping oscillations and the thermo-acoustic oscillations overlap each other in an overlapping area (64), whereby the oscillations are canceled out in the overlapping area. Independent claims are included for the following: (1) Device for damping thermo-acoustic oscillations; (2) Combustion chamber; and (3) Gas turbine.
IPC 8 full level
F23M 20/00 (2014.01); G10K 11/175 (2006.01)
CPC (source: EP US)
F02C 7/04 (2013.01 - EP US); F23M 20/005 (2015.01 - EP US); F05D 2260/962 (2013.01 - EP US); F23R 2900/00013 (2013.01 - EP US)
Citation (search report)
See references of WO 2007031376A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1762786 A1 20070314; CN 101263343 A 20080910; CN 101263343 B 20120905; EP 1924805 A1 20080528; JP 2009508082 A 20090226; US 2009293481 A1 20091203; US 8919128 B2 20141230; WO 2007031376 A1 20070322
DOCDB simple family (application)
EP 05019897 A 20050913; CN 200680033299 A 20060808; EP 06792726 A 20060808; EP 2006065137 W 20060808; JP 2008530452 A 20060808; US 99197806 A 20060808