Global Patent Index - EP 1004823 A3

EP 1004823 A3 20001129 - Damping device for the reduction of the oscillation amplitude of acoustic waves for a burner

Title (en)

Damping device for the reduction of the oscillation amplitude of acoustic waves for a burner

Title (de)

Dämpfungsvorrichtung zur Reduzierung der Schwingungsamplitude akustischer Wellen für einen Brenner

Title (fr)

Dispositif d'amortissement pour la réduction de l'amplitude d'oscillation d'ondes acoustiques pour un brûleur

Publication

EP 1004823 A3 20001129 (DE)

Application

EP 99810950 A 19991020

Priority

DE 19851636 A 19981110

Abstract (en)

[origin: DE19851636A1] Preferably for driving a gas turbo-group, the internal combustion engine burner incorporates a damping device for reduction of the vibration amplitude of acoustic waves. A mixture area (2) is provided for air and fuel and a combustion chamber (1) is arranged beyond the mixture area in which the fuel-air mixture is ignited. A Helmholz resonator (4) is directly connected with the mixture area. The acoustic waves formed in the burner are suppressed in the resonator and are not reflected back into the burner. The resonator is arranged in the flow direction of the fuel-air mixture before the mixture area.

IPC 1-7

F23M 13/00; F23D 17/00

IPC 8 full level

F23R 3/18 (2006.01); F23D 14/46 (2006.01); F23D 17/00 (2006.01); F23M 20/00 (2014.01); F23R 3/28 (2006.01)

CPC (source: EP US)

F23D 14/46 (2013.01 - EP US); F23R 3/286 (2013.01 - EP US); F05B 2260/96 (2013.01 - EP US); F23C 2900/07002 (2013.01 - EP US); F23D 2210/00 (2013.01 - EP US); F23R 2900/00014 (2013.01 - EP US)

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

DE 19851636 A1 20000511; CN 1151344 C 20040526; CN 1257179 A 20000621; DE 59906664 D1 20030925; EP 1004823 A2 20000531; EP 1004823 A3 20001129; EP 1004823 B1 20030820; JP 2000146182 A 20000526; JP 4511658 B2 20100728; US 6370879 B1 20020416

DOCDB simple family (application)

DE 19851636 A 19981110; CN 99122455 A 19991109; DE 59906664 T 19991020; EP 99810950 A 19991020; JP 31703699 A 19991108; US 43191899 A 19991102