EP 2685167 B1 20151216 - Method for operating a gas burner
Title (en)
Method for operating a gas burner
Title (de)
Verfahren zum Betrieb eines Gasbrenners
Title (fr)
Procédé de fonctionnement d'un brûleur à gaz
Publication
Application
Priority
EP 12176351 A 20120713
Abstract (en)
[origin: EP2685167A1] Method for operating a gas burner (10), wherein during burner-on phases a gas/air mixture having a defined mixing ratio of gas and air is provided to a burner chamber (11) of the gas burner (10) for combusting the gas/air mixture within the burner chamber (11), wherein the gas/air mixture is provided by mixing an air flow sucked in by a fan (14) with a gas flow, and wherein the defined mixing ratio of the gas/air mixture is controlled by comparing an actual value of a signal provided by an electrical or electronic sensor (23) coupled to a gas duct (16) with a nominal value for the signal provided by the electrical or electronic sensor (23) and by generating a control variable for a gas valve (17) assigned to the gas duct (16) on basis of the control deviation between the actual value and the nominal value. The mixing ratio of the gas/air mixture is changed depending on the speed of the fan (14), whereby for fan speeds being smaller than a lower threshold a gas/air mixture is provided having a mixing ratio of gas and air adapted to provide a stable combustion of the gas/air mixture, and whereby for fan speeds being larger than the lower thresholds the mixing ratio of gas and air of the gas/air mixture is freely adjustable as a function of the fan speed.
IPC 8 full level
CPC (source: EP)
F23N 1/025 (2013.01); F23N 5/184 (2013.01); F23N 1/02 (2013.01); F23N 2225/06 (2020.01); F23N 2227/02 (2020.01); F23N 2233/08 (2020.01)
Citation (examination)
- EP 1084369 B1 20030115 - HONEYWELL BV [NL]
- W. BEITZ: "Strömungstechnische Messgrössen", DUBBEL TASCHENBUCH FÜR DEN MASCHINENBAU, 31 December 1997 (1997-12-31), XP055135135, ISBN: 978-3-54-062467-7, [retrieved on 20140818]
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
DOCDB simple family (publication)
DOCDB simple family (application)
EP 12176351 A 20120713