EP 0428117 B1 19931006 - BOILER WITH EXHAUST GAS RECIRCULATION TO THE BURNER
Title (en)
BOILER WITH EXHAUST GAS RECIRCULATION TO THE BURNER
Publication
Application
Priority
DE 3938090 A 19891116
Abstract (en)
[origin: EP0428117A2] The boiler with exhaust gas recirculation to the burner consists of a water-bearing housing (17), through which there extends a tubular flue (1) which surrounds the fire box and is sealed on the takeoff side with a flue gas collecting chamber (18) and on the burner side with a sealing door (6) supporting the burner (13) and in which a pot-shaped reversing-type combustion chamber (2) is arranged, which inwardly delimits an at least single-flue annular cylindrical heating gas flue. According to the invention, such a boiler is designed in such a manner that there is arranged in the tubular flue (1) between the same and the pot-shaped reversing-type combustion chamber (2) an exhaust gas flowback duct (3) which extends over the whole or approximately the whole length (L) of the tubular flue (1). This exhaust gas flowback duct (3) is connected with its open end (4), by means of an exhaust gas flowback opening (5) in the sealing door (6), to the suction side of the burner blower arranged on the sealing door (6) and projects with the other open end (7) into the flue gas collecting chamber (18). <IMAGE>
IPC 1-7
IPC 8 full level
F23C 5/00 (2006.01); F23C 9/00 (2006.01); F24H 1/26 (2006.01); F24H 9/00 (2006.01)
CPC (source: EP)
F23C 5/00 (2013.01); F23C 9/00 (2013.01); F24H 1/263 (2013.01)
Designated contracting state (EPC)
AT BE CH DE ES FR GB IT LI LU NL
DOCDB simple family (publication)
EP 0428117 A2 19910522; EP 0428117 A3 19910717; EP 0428117 B1 19931006; AT E95597 T1 19931015; DE 3938090 C1 19910418; DE 59003002 D1 19931111; ES 2045721 T3 19940116
DOCDB simple family (application)
EP 90121659 A 19901113; AT 90121659 T 19901113; DE 3938090 A 19891116; DE 59003002 T 19901113; ES 90121659 T 19901113