EP 0859195 A3 20001004 - Method and device for controlling the gas exhaust for a heating apparatus with a burner, in particular fan-assisted burner
Title (en)
Method and device for controlling the gas exhaust for a heating apparatus with a burner, in particular fan-assisted burner
Title (de)
Verfahren und Vorrichtung zur Steuerung der Abgasführung für ein Heizgerät mit einem insbesondere gebläseunterstützten Brenner
Title (fr)
Méthode et appareil pour contrôler l'évacuation des gaz des fumées pour un appareil de chauffage avec un brûleur, en particulier assisté par un ventilateur
Publication
Application
Priority
DE 19705597 A 19970214
Abstract (en)
[origin: EP0859195A2] The gas exhaust duct (24) from the burner is ducted into a chamber bounded by walls (12) tapering to smaller diameter at the top. The exhaust duct enters the chamber via a bend to generate a suction effect. The bottom edges of the chamber walls have gaps (32) covered by pendant mounted flaps (36). These control the fresh airflow into the chamber to match the suction effect of the exhaust gasses and hence the flow rate of the exhaust gasses. For small burner settings the smaller flow rates of exhaust gasses draw in small flow rates of cooling air via the flaps. The high burn rates generate more suction in the exhaust chamber and cause the flaps to swing inwards to admit more air. In the event of a beck pressure in the exhaust flue the flaps are forced outwards to allow excess pressure to be safely vented.
IPC 1-7
IPC 8 full level
F23J 13/04 (2006.01); F23M 9/00 (2006.01); F24B 1/189 (2006.01); F24C 15/00 (2006.01)
CPC (source: EP)
F23M 9/006 (2013.01)
Citation (search report)
- [X] US 4403599 A 19830913 - COPENHAVER LLOYD F [US]
- [X] DE 3716695 A1 19871210 - VAILLANT JOH GMBH & CO [DE]
- [A] US 5239947 A 19930831 - SCHIMMEYER WERNER K [US]
- [A] DE 3036506 A1 19820519 - STIEBEL ELTRON GMBH & CO KG [DE]
- [A] FR 2577306 A1 19860814 - HERVE MICHEL [FR]
- [A] US 3987785 A 19761026 - LONG LEBEAU M
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0859195 A2 19980819; EP 0859195 A3 20001004; EP 0859195 B1 20031112; DE 19705597 A1 19980820; DE 59710992 D1 20031218
DOCDB simple family (application)
EP 97121018 A 19971129; DE 19705597 A 19970214; DE 59710992 T 19971129