Global Patent Index - EP 2732215 A2

EP 2732215 A2 20140521 - COMBUSTION CHAMBER FOR A GAS TURBINE PLANT

Title (en)

COMBUSTION CHAMBER FOR A GAS TURBINE PLANT

Title (de)

BRENNKAMMER FÜR EINE GASTURBINENANLAGE

Title (fr)

CHAMBRE DE COMBUSTION POUR UNE INSTALLATION DE TURBINE À GAZ

Publication

EP 2732215 A2 20140521 (DE)

Application

EP 12748204 A 20120814

Priority

  • DE 102011081963 A 20110901
  • EP 2012065856 W 20120814

Abstract (en)

[origin: WO2013029984A2] The invention relates to a combustion chamber (1) for a gas turbine plant having a combustion chamber wall (10), through which combustion gases (G) flow in the direction of a downstream gas turbine, wherein the combustion chamber wall (10) has a dampening device (20) for dampening thermoacoustic vibrations caused by the combustion gases (G) and wherein the dampening device (20) comprises at least one Helmholtz resonator which is designed so that the resonator volume (21) thereof comes to lie on the side of the combustion chamber wall (10) facing away from a combustion chamber inner wall and has at least one resonator tube (22, 22', 22'') interacting with the resonator volume (21) which opens into the combustion chamber (1) with the resonator tube opening (M) in the combustion chamber inner wall opposite the resonator volume (21), and wherein there is at least one supply opening (23) with which sealing air (S) for sealing the resonator tube opening (M) is introduced into the combustion chamber (1) via the resonator volume (21) and the at least one resonator tube (22, 22', 22'') from a compressor plenum (2) of an upstream compressor enclosing the combustion chamber. According to the invention, the at least one resonator tube (22', 22'') is arranged having the resonator tube axis (A) thereof in the combustion chamber wall so that the resonator tube axis (A) lies outside of a surface normal (N) of the combustion chamber wall (10) at the site of the resonator tube opening (M).

IPC 1-7

F23M 99/00

IPC 8 full level

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

CPC (source: EP US)

F23M 20/005 (2015.01 - EP); F23R 3/002 (2013.01 - EP); F23R 3/16 (2013.01 - US); F23R 2900/00014 (2013.01 - EP US)

Citation (search report)

See references of WO 2013029984A2

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

WO 2013029984 A2 20130307; WO 2013029984 A3 20131227; CN 103765107 A 20140430; CN 103765107 B 20160504; EP 2732215 A2 20140521; US 2014345282 A1 20141127

DOCDB simple family (application)

EP 2012065856 W 20120814; CN 201280042586 A 20120814; EP 12748204 A 20120814; US 201214240549 A 20120814