Global Patent Index - EP 1476699 A1

EP 1476699 A1 20041117 - COMBUSTION CHAMBER AND DAMPER ARRANGEMENT FOR REDUCTION OF COMBUSTION CHAMBER PULSATIONS IN A GAS TURBINE PLANT

Title (en)

COMBUSTION CHAMBER AND DAMPER ARRANGEMENT FOR REDUCTION OF COMBUSTION CHAMBER PULSATIONS IN A GAS TURBINE PLANT

Title (de)

BRENNKAMMER UND DÄMPFERANORDNUNG ZUR REDUZIERUNG VON BRENNKAMMERPULSATIONEN IN EINER GASTURBINENANLAGE

Title (fr)

CHAMBRE DE COMBUSTION ET DISPOSITIF D'AMORTISSEMENT DESTINÉ A REDUIRE DES PULSATIONS DE CHAMBRE DE COMBUSTION DANS UN SYSTÈME DE TURBINES A GAZ

Publication

EP 1476699 A1 20041117 (DE)

Application

EP 02782607 A 20021216

Priority

  • CH 0200696 W 20021216
  • CH 672002 A 20020116

Abstract (en)

[origin: WO03060381A1] At least one Helmholtz damper (17) is arranged on a combustion chamber (16) of a gas turbine (10) for damping thermoacoustic vibrations, the damping volume (20, 21) of which is connected to the combustion chamber (16) by means of a connecting channel (18). According to the invention, an optimal damping can be achieved in a simple manner, whereby the Helmholtz damper (17) is embodied such that the damping frequency thereof is adjustable, whereby the damping volume (20, 21) is divided into a fixed damping volume (20) and a variable damping volume (21) and the damping volume may be varied by means of variation in the variable damping volume (21).

IPC 1-7

F23M 13/00; F01N 1/02; F01N 1/16; G10K 11/16

IPC 8 full level

F23M 20/00 (2014.01); F23R 3/00 (2006.01)

CPC (source: EP US)

F23M 20/005 (2015.01 - EP US); F23R 3/002 (2013.01 - EP US); F05B 2260/96 (2013.01 - EP US); F23D 2210/00 (2013.01 - EP US); F23R 2900/00013 (2013.01 - EP US); F23R 2900/00014 (2013.01 - EP US)

Citation (search report)

See references of WO 03060381A1

Designated contracting state (EPC)

DE GB

DOCDB simple family (publication)

WO 03060381 A1 20030724; AU 2002347185 A1 20030730; CN 100523615 C 20090805; CN 1615416 A 20050511; EP 1476699 A1 20041117; EP 1476699 B1 20131113; US 2005103018 A1 20050519; US 7331182 B2 20080219

DOCDB simple family (application)

CH 0200696 W 20021216; AU 2002347185 A 20021216; CN 02827180 A 20021216; EP 02782607 A 20021216; US 89036904 A 20040714