EP 0674135 B2 20020821 - Gas burners for industrial furnaces
Title (en)
Gas burners for industrial furnaces
Title (de)
Gasbrenner für Industrieöfen
Title (fr)
Brûleurs à gaz pour fours industriels
Publication
Application
Priority
FR 9403633 A 19940324
Abstract (en)
[origin: EP0674135A1] The gas burner has a central gas supply channel (3), two concentric annular air supply channels (4,5), and a burner nose (10). A first series of orifices (14) for gas passage are located in a ring in communication with the central channel. A second series of orifices (15) for passage of air are located in a ring around the gas orifices and are in communication with one (4) of the annular channels. A third series of orifices (18) for air passage are located in a ring and communicate with the second (5) of the annular channels. The first series of orifices are inclined relative to the axial direction (X) of the burner nose and diverge towards the outside of the burner. This creates a divergent gas flow. The second series of orifices are in a helix so as to create a turbulent air flow which intersects the gas flow.
IPC 1-7
IPC 8 full level
F23C 9/00 (2006.01); F23D 14/24 (2006.01)
CPC (source: EP)
F23C 9/00 (2013.01); F23D 14/24 (2013.01)
Citation (opposition)
Opponent :
- H. Lederer: "Neuartiger Drehofenbrenner mit nur einer Primärluftzuführung", extrait de la revue "Zement-Kalk-Gips International", 46ème année (1993), pages 779-783, Bauverlag GmbH, Wiesbaden
- F. Schneider, "Betriebserfahrungen mit dem KHD PYRO-JET Brenner", KHD Symposium '90, Volume 1, "Moderne Rollenpressen-Technik", pp. 97-99, KHD Humboldt Wedag AG, Köln, 1991
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IE IT LI LU NL PT SE
DOCDB simple family (publication)
EP 0674135 A1 19950927; EP 0674135 B1 19990623; EP 0674135 B2 20020821; AT E181593 T1 19990715; DE 69510395 D1 19990729; DE 69510395 T2 20000113; DE 69510395 T3 20030417; ES 2132550 T3 19990816; ES 2132550 T5 20021216; FR 2717884 A1 19950929; FR 2717884 B1 19960607
DOCDB simple family (application)
EP 95400603 A 19950320; AT 95400603 T 19950320; DE 69510395 T 19950320; ES 95400603 T 19950320; FR 9403633 A 19940324