EP 0391858 B1 19950104 - Apparatus for flue gas recirculation in oil and gas burners.
Title (en)
Apparatus for flue gas recirculation in oil and gas burners.
Title (de)
Vorrichtung zur Rauchgasrückführung bei Oel- und Gasbrennern.
Title (fr)
Dispositif pour la recirculation du gaz de fumée dans des brûleurs à huile et à gaz.
Publication
Application
Priority
CH 133489 A 19890407
Abstract (en)
[origin: EP0391858A1] The invention serves to reduce the formation of nitrogen oxides in the operation of burners for solid, liquid and gaseous fuels with the aid of flue gas recirculation. In this connection, the flue gases are admitted into a combustion chamber (6), through openings (3b) provided in the region of a stabiliser (4), via a flame pipe and optionally also around the flame pipe (3). Preferably, both the combustion air and the waste gases are activated with an activator aerosol. The recirculation of the waste gases takes place via a longitudinally displaceable adaptor pipe (12a, 12b) and adaptor-pipe shoulder (11), which surrounds the flame pipe (3) at least partially. Regulation of the waste gas flows (14, 15) takes place by means of displacing the adaptor pipe (12a, 12b) and the adaptor pipe shoulder (11). <IMAGE>
IPC 1-7
IPC 8 full level
F23C 9/08 (2006.01); F23D 11/40 (2006.01); F23L 7/00 (2006.01)
CPC (source: EP)
F23C 9/08 (2013.01); F23D 11/40 (2013.01); F23L 7/00 (2013.01)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0391858 A1 19901010; EP 0391858 B1 19950104; AT E116732 T1 19950115; DE 59008164 D1 19950216; DK 0391858 T3 19950515; ES 2028504 A6 19920701; ES 2069053 T3 19950501
DOCDB simple family (application)
EP 90810274 A 19900405; AT 90810274 T 19900405; DE 59008164 T 19900405; DK 90810274 T 19900405; ES 9000761 A 19900314; ES 90810274 T 19900405