Global Patent Index - EP 2685168 A1

EP 2685168 A1 20140115 - 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

EP 2685168 A1 20140115 (EN)

Application

EP 12176353 A 20120713

Priority

EP 12176353 A 20120713

Abstract (en)

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 the variation of the mixing ratio of the gas/air mixture as a function of the fan speed is allowed only at defined operating conditions of the gas burner (10). ( Figure 1 )

IPC 8 full level

F23N 1/02 (2006.01); F23N 5/18 (2006.01)

CPC (source: EP)

F23N 1/025 (2013.01); F23N 5/184 (2013.01); F23N 1/02 (2013.01); F23N 2225/06 (2020.01); F23N 2233/08 (2020.01)

Citation (applicant)

Citation (search report)

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

DOCDB simple family (publication)

EP 2685168 A1 20140115; EP 2685168 B1 20151014

DOCDB simple family (application)

EP 12176353 A 20120713