EP 4092325 A1 20221123 - METHOD AND CONTROLLER FOR OPERATING A GAS BURNER APPLIANCE
Title (en)
METHOD AND CONTROLLER FOR OPERATING A GAS BURNER APPLIANCE
Title (de)
VERFAHREN UND STEUERGERÄT ZUM BETRIEB EINES GASBRENNERGERÄTS
Title (fr)
PROCÉDÉ ET APPAREIL DE COMMANDE POUR FAIRE FONCTIONNER UN APPAREIL À BRÛLEUR À GAZ
Publication
Application
Priority
EP 21174098 A 20210517
Abstract (en)
Method for operating a gas burner appliance (10), the gas burner appliance comprising: a combustion chamber (11) in which a defined gas/air mixture is combusted after combustion has been started; a mixing device (25) to provide said gas/air mixture by mixing an air flow provided by an air duct (15) with a gas flow provided by a gas duct (16); a fan (14) to provide the air flow or the flow of the gas/air mixture; a gas safety valve unit (19) assigned to the gas duct to open or close the gas duct; a gas flow modulator (18) or a gas flow regulator (28) assigned to the gas duct to keep a mixing ratio of the defined gas/air mixture constant over the modulation range of the gas burner appliance; an absolute pressure sensor (21) positioned between the gas safety valve unit and the mixing device, wherein the gas burner appliance is operated to determine the air flow resistance of the same by executing the following steps before combustion becomes started: Measuring a first absolute pressure by the absolute pressure sensor (21) when the gas safety valve unit (19) is closed and when the fan (14) is stopped. Measuring a second absolute pressure by the absolute pressure sensor (21) when the gas safety valve unit (19) is closed and when the fan (14) is running. Determining a pressure difference between the first absolute pressure and the second absolute pressure. Determining on basis of the pressure difference the air flow resistance of the gas burner appliance. Fig. 1
IPC 8 full level
F23N 5/24 (2006.01); F23N 1/02 (2006.01); F23N 5/12 (2006.01); F23N 5/18 (2006.01)
CPC (source: EP)
F23N 1/022 (2013.01); F23N 1/025 (2013.01); F23N 5/123 (2013.01); F23N 5/242 (2013.01); F23N 2005/181 (2013.01); F23N 2225/06 (2020.01); F23N 2227/20 (2020.01); F23N 2231/12 (2020.01); F23N 2231/20 (2020.01); F23N 2231/26 (2020.01); F23N 2233/08 (2020.01); F23N 2235/16 (2020.01); F23N 2241/04 (2020.01)
Citation (applicant)
- EP 2667097 A1 20131127 - HONEYWELL TECHNOLOGIES SARL [CH]
- DE 19824521 A1 19991209 - HONEYWELL BV [NL]
- EP 2966354 B1 20171129 - HONEYWELL TECHNOLOGIES SARL [CH]
- EP 2655971 B1 20160413 - BOSCH GMBH ROBERT [DE]
- EP 2466202 B1 20181121 - VAILLANT GMBH [DE]
- US 5520533 A 19960528 - VROLIJK ENNO [NL]
Citation (search report)
- [A] JP 2017116382 A 20170629 - MIURA KOGYO KK
- [A] US 2004062290 A1 20040401 - CORDIER REMY [FR], et al
- [A] US 2015045971 A1 20150212 - ENDEL PETR [CZ], et al
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
EP 4092325 A1 20221123; EP 4092325 B1 20231220; WO 2022243160 A1 20221124
DOCDB simple family (application)
EP 21174098 A 20210517; EP 2022062928 W 20220512