EP 0387859 A3 19910724 - HEATING BOILER
Title (en)
HEATING BOILER
Publication
Application
Priority
DE 3908296 A 19890314
Abstract (en)
[origin: EP0387859A2] Heating boiler with integrated waste gas recirculation for the combustion of liquid or gaseous fuel, having a furnace insert open in the direction of flow and a burner arranged on the front side, a part of the flue gas being recycled into the flame thereof for cooling the flame temperature and hence reducing the formation of NOx, in such a way that, in the interest of an overall optimised temperature characteristic, the flue gas fraction fed to the flame is tapped downstream of a first cooling section and passed into a region in the form of a cylindrical pipe around the flame formation zone.
IPC 1-7
IPC 8 full level
F23C 9/08 (2006.01); F23M 9/06 (2006.01); F24H 1/28 (2006.01)
CPC (source: EP)
F23C 9/08 (2013.01); F23M 9/06 (2013.01); F24H 1/282 (2013.01); F23M 2900/09062 (2013.01)
Citation (search report)
- [E] EP 0384277 A2 19900829 - HEIM HERMANN MASCH [DE]
- [X] DE 2927193 A1 19810115 - KOERTING AG
- [YD] EP 0292580 A1 19881130 - PC PATENTCONSULT AG
- [X] DE 3601000 A1 19870619 - VAILLANT JOH GMBH & CO [DE]
- [X] DE 3628293 A1 19880225 - WOLF KLIMATECHNIK GMBH [DE]
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0387859 A2 19900919; EP 0387859 A3 19910724; EP 0387859 B1 19950621; AT E124127 T1 19950715; DE 3908296 A1 19900920; DE 3908296 C2 19940414; DE 59009264 D1 19950727
DOCDB simple family (application)
EP 90104852 A 19900314; AT 90104852 T 19900314; DE 3908296 A 19890314; DE 59009264 T 19900314