EP 0415037 B1 19940420 - Forced draught burner for heating boiler with waste gas recirculation.
Title (en)
Forced draught burner for heating boiler with waste gas recirculation.
Title (de)
Gebläsebrenner für Heizkessel mit Abgasrückführung.
Title (fr)
Brûleur à air soufflé pour chaudière de chauffage avec recyclage des fumées.
Publication
Application
Priority
DE 3928384 A 19890828
Abstract (en)
[origin: EP0415037A2] The forced draught burner is intended for heating boilers with waste gas recirculation and consists of a housing (1) which is open on the heating boiler side and can be placed on a heating boiler sealing plate (8) and in which a mixing pipe (10) with nozzle connection and a blower wheel (7) are arranged on a shaft (5) of the drive motor, which is perpendicular to the opening plane of the housing (1). The blower wheel (7) is assigned, for conveying air, an air inflow opening (28) in the adjacent wall of the housing (1). The wheel chamber (3) is connected to the interior of the mixing pipe (10). In order to ensure completely separate air and waste gas guidance and conveyance on short paths inside the burner, the latter is designed according to the invention in such a manner that the housing (1) is divided by a partition (6) which is passed through by the nozzle connection (4) and the shaft (5), forming a sealing plate-side waste gas chamber (2) and the wheel chamber (3) extending parallel thereto. In the waste gas chamber (2), a further wheel (7') is arranged on the shaft (5) projecting into the chamber, or connected thereto. The wheel (7') is assigned on the suction side in the heating boiler sealing plate (8) a waste gas suction opening (9). The waste gas chamber (2) is connected to the interior of the mixing pipe (10). <IMAGE>
IPC 1-7
IPC 8 full level
F23C 9/00 (2006.01); F23D 11/00 (2006.01)
CPC (source: EP US)
F23C 9/00 (2013.01 - EP US); F23D 11/001 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0415037 A2 19910306; EP 0415037 A3 19910814; EP 0415037 B1 19940420; AT E104756 T1 19940515; CA 2023907 A1 19910301; DD 297501 A5 19920109; DE 3928384 A1 19910321; DE 59005426 D1 19940526; ES 2053024 T3 19940716; US 5087194 A 19920211
DOCDB simple family (application)
EP 90113114 A 19900710; AT 90113114 T 19900710; CA 2023907 A 19900823; DD 34366190 A 19900827; DE 3928384 A 19890828; DE 59005426 T 19900710; ES 90113114 T 19900710; US 57175790 A 19900822