EP 4290135 A1 20231213 - PREMIX GAS BURNER
Title (en)
PREMIX GAS BURNER
Title (de)
VORMISCH-GASBRENNER
Title (fr)
BRÛLEUR À GAZ PRÉMÉLANGÉ
Publication
Application
Priority
EP 22382547 A 20220608
Abstract (en)
Premix gas burner for a gas boiler comprising a combustion area and a mixing unit communicated with the combustion area, with a mixture of an oxidizer and a fuel being generated in the mixing unit, which mixture is driven towards the combustion area by a fan. The burner further comprises between the mixing unit and the combustion area a first passage area 5 comprising a first shutter 6 which, in a resting position, prevents the passage of the mixture, with said first shutter 6 being configured for being moved and allowing the passage of the mixture when the mixture exerts a pressure higher than a first threshold pressure on said shutter 6, and a second passage area arranged between the first passage area 5 and the combustion area comprising a second shutter 7. The second shutter 7 comprises a resting position in which the passage of a minimum flow rate of the mixture through the second passage area is allowed, with the second shutter 7 being configured for being moved and allowing the passage of a larger flow rate of the mixture when said mixture exerts a pressure higher than a second threshold pressure greater than the first threshold pressure.
IPC 8 full level
F23D 14/02 (2006.01); F16K 15/03 (2006.01); F16K 27/02 (2006.01); F23D 14/36 (2006.01); F23D 14/60 (2006.01); F23D 14/62 (2006.01); F23D 14/70 (2006.01); F23L 5/02 (2006.01); F23N 1/02 (2006.01); F23N 3/02 (2006.01); F23N 3/06 (2006.01); F23N 3/08 (2006.01); F24H 9/20 (2022.01)
CPC (source: EP)
F23D 14/02 (2013.01); F23D 14/36 (2013.01); F23D 14/60 (2013.01); F23D 14/62 (2013.01); F23D 14/70 (2013.01); F23L 5/02 (2013.01); F23N 1/027 (2013.01); F23N 3/02 (2013.01); F23N 3/065 (2013.01); F23N 3/082 (2013.01); F24H 9/2042 (2013.01); F23D 2900/00003 (2013.01); F23K 2900/05002 (2013.01); F23N 2233/08 (2020.01); F23N 2235/06 (2020.01); F23N 2235/10 (2020.01); F23N 2241/02 (2020.01)
Citation (applicant)
EP 3754267 A1 20201223 - VAILLANT GMBH [DE]
Citation (search report)
- [YD] EP 3754267 A1 20201223 - VAILLANT GMBH [DE]
- [Y] EP 2660515 A2 20131106 - DAESUNG IND CO LTD [KR]
- [A] US 2016161112 A1 20160609 - ZATTI CLAUDIO [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 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)
DOCDB simple family (application)
EP 22382547 A 20220608