EP 1158247 A3 20020102 - Apparatus to reduce acoustic vibrations in a combustion chamber
Title (en)
Apparatus to reduce acoustic vibrations in a combustion chamber
Title (de)
Vorrichtung zur Dämpfung akustischer Schwingungen in einer Brennkammer
Title (fr)
Dispositif pour la réduction des vibrations accoustiques dans une chambre de combustion
Publication
Application
Priority
DE 10026121 A 20000526
Abstract (en)
[origin: EP1158247A2] The acoustic oscillation damping device has a Helmholtz resonator (4) having a resonance volume (3), a coupling channel (2), connecting the combustion chamber (1) to the resonance volume and a hollow body (6) with a volume which is varied by supplying or venting a fluid, used for varying the volume of the resonance volume. An Independent claim for a combustion chamber device provided with an acoustic oscillation damping device is also included.
IPC 1-7
IPC 8 full level
F01D 25/00 (2006.01); F01N 1/02 (2006.01); F02C 7/24 (2006.01); F23M 20/00 (2014.01)
CPC (source: EP US)
F01N 1/02 (2013.01 - EP US); F01N 1/023 (2013.01 - EP US); F23M 20/005 (2015.01 - EP US); F01N 2490/12 (2013.01 - EP US); F23D 2210/00 (2013.01 - EP US); F23R 2900/00014 (2013.01 - EP US)
Citation (search report)
- [DYA] DE 19640980 A1 19980416 - ASEA BROWN BOVERI [CH]
- [Y] US 5103931 A 19920414 - OKAZAKI MASAKI [JP], et al
- [A] EP 0649982 A1 19950426 - KNECHT FILTERWERKE GMBH [DE]
- [A] DE 4414232 A1 19951026 - ABB MANAGEMENT AG [CH]
- [E] GB 2357141 A 20010613 - DRAFTEX IND LTD [GB]
- [A] PATENT ABSTRACTS OF JAPAN vol. 1999, no. 05 31 May 1999 (1999-05-31)
- [A] PATENT ABSTRACTS OF JAPAN vol. 010, no. 323 (M - 531) 5 November 1986 (1986-11-05)
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 1158247 A2 20011128; EP 1158247 A3 20020102; EP 1158247 B1 20060419; DE 10026121 A1 20011129; DE 50109527 D1 20060524; JP 2002129982 A 20020509; JP 4880825 B2 20120222; US 2002000343 A1 20020103; US 6634457 B2 20031021
DOCDB simple family (application)
EP 01110618 A 20010430; DE 10026121 A 20000526; DE 50109527 T 20010430; JP 2001154567 A 20010523; US 86439501 A 20010525