EP 4283196 A1 20231129 - CONTROLLING A MIXING RATIO
Title (en)
CONTROLLING A MIXING RATIO
Title (de)
STEUERUNG EINES MISCHVERHÄLTNISSES
Title (fr)
COMMANDE D'UN RAPPORT DE MÉLANGE
Publication
Application
Priority
EP 22174741 A 20220523
Abstract (en)
Controlling a mixing ratio. A method of controlling a mixing ratio of combustion air and a gaseous fuel comprising more than twenty percent of hydrogen gas, wherein the combustion air and the gaseous fuel are combusted together in a combustion chamber (2), the method comprising the steps: a first optical sensor (8) recording a first raw signal directly originating from a flame (1) inside the combustion chamber (2), producing a first sensor signal from the first raw signal, and sending the first sensor signal to a controller (14); the controller (14) determining a first signal strength of the first sensor signal; after recording the first raw signal, changing a supply of combustion air and/or of gaseous fuel to the combustion chamber (2); the at least one first optical sensor (8) recording a second raw signal directly originating from the flame (1) inside the combustion chamber (2).
IPC 8 full level
CPC (source: EP)
F23N 1/022 (2013.01); F23N 5/082 (2013.01); F23C 2900/9901 (2013.01); F23N 2229/14 (2020.01)
Citation (applicant)
- DE 3937290 A1 19900517 - VAILLANT JOH GMBH & CO [DE]
- EP 1154202 A2 20011114 - SIEMENS BUILDING TECH AG [CH]
- EP 3339736 A1 20180627 - SIEMENS AG [DE]
- EP 3663646 A1 20200610 - SIEMENS AG [DE]
- DE 202020106475 U1 20210114 - SIEMENS AG [DE]
- EP 3663648 A1 20200610 - VAILLANT GMBH [DE]
- US 5037291 A 19910806 - CLARK DANIEL R [US]
- EP 3301364 B1 20190807 - SIEMENS AG [DE]
Citation (search report)
- [A] US 5037291 A 19910806 - CLARK DANIEL R [US]
- [A] DE 102019101329 A1 20200723 - VAILLANT GMBH [DE]
- [A] US 2017314989 A1 20171102 - MAZZILLO MASSIMO CATALDO [IT], 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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
DOCDB simple family (application)
EP 23154563 A 20230201; EP 23154564 A 20230201