EP 0406173 A3 19910206 - BOILER
Title (en)
BOILER
Publication
Application
Priority
CH 236489 A 19890626
Abstract (en)
[origin: EP0406173A2] A heating boiler comprises a heat-exchange chamber (13) surrounded by a heating jacket (15). Another water jacket (27) arranged concentrically with the latter extends, at the rear of the heating boiler, over approximately half the length of the heating jacket (15). A concentric core body (43) is located inside the water jacket (27). Helical flue gas channels (54, 56) each provided with an outlet (33, 37, respectively), are arranged in the spaces (53, 55, respectively. A flue gas flap (39) is located in the opening region of the outlets (33, 37). In the central position illustrated, the flue gases can escape virtually unhindered from both flue gas channels. This corresponds to full-load operation of the burner (11). At minimal load, the outlet (33) is closed by the flue gas flap. In both cases, however, the flue gas temperature is the same. This prevents the temperature in every part of the heating boiler from descending below the dew point.
IPC 1-7
IPC 8 full level
F24H 1/00 (2006.01); F24H 1/28 (2006.01); F24H 9/00 (2006.01)
CPC (source: EP)
F24H 1/282 (2013.01); F24H 9/0031 (2013.01); F24H 9/0036 (2013.01)
Citation (search report)
- [A] DE 1604087 A1 19700813 - WELEKER FRIEDRICH
- [A] DE 3604842 A1 19870820 - KLOECKNER & CO KGAA ZWEIGNIEDE [DE]
- [A] DE 384415 C 19231117 - JAKOB ZIRN
- [A] FR 542897 A 19220823
- [A] FR 1546461 A 19681122
- [X] DE 1601224 A1 19691002 - MEESE FA FR
- [X] GB 414480 A 19340809 - RADIATION LTD, et al
- [A] FR 2257874 A1 19750808 - PASSAT AS MASKINFAB [DK]
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0406173 A2 19910102; EP 0406173 A3 19910206; EP 0406173 B1 19920415; AT E75024 T1 19920515; AU 5832890 A 19910117; CA 2033988 A1 19901227; CS 306290 A3 19920115; CZ 281126 B6 19960612; DD 295904 A5 19911114; DE 59000086 D1 19920521; HU 209911 B 19941128; HU 904743 D0 19920128; HU T58410 A 19920228; PL 164910 B1 19941031; PL 285725 A1 19910114; WO 9100481 A1 19910110
DOCDB simple family (application)
EP 90810472 A 19900622; AT 90810472 T 19900622; AU 5832890 A 19900622; CA 2033988 A 19900622; CH 9000150 W 19900622; CS 306290 A 19900626; DD 34204290 A 19900625; DE 59000086 T 19900622; HU 474390 A 19900622; PL 28572590 A 19900621