EP 0505714 A3 19930303 - CONTROL DEVICE FOR A GAS BURNER WITH A FAN FOR SUPPLYING COMBUSTION AIR
Title (en)
CONTROL DEVICE FOR A GAS BURNER WITH A FAN FOR SUPPLYING COMBUSTION AIR
Publication
Application
Priority
DE 4109841 A 19910326
Abstract (en)
[origin: EP0505714A2] In a known control device of the generic type, the set-point adjuster (30) of the gas control valve (32) detects only the volume flow of the combustion air but not its temperature. This can lead to a reduction in the combustion quality, if the temperature of the combustion air deviates significantly from a normal value used as a basis in the design of the control device. As a result of the further function, assigned to the set-point adjuster (30) of the gas control valve (32), of detection of the temperature of the combustion air and temperature-dependent control of the set-point, it can be simply achieved that, at all temperatures occurring in practice of the combustion air within a predetermined capacity range of the gas burner (20), the ratio of air mass to gas mass and thus the excess air can be kept virtually constant. Preferred area of application is control devices for premix-type burners in gas-fired water heaters. <IMAGE>
IPC 1-7
IPC 8 full level
F23N 1/02 (2006.01); F23N 5/04 (2006.01); F23N 5/18 (2006.01)
CPC (source: EP)
F23N 1/027 (2013.01); F23N 5/047 (2013.01); F23N 5/18 (2013.01); F23N 2225/06 (2020.01); F23N 2233/08 (2020.01); F23N 2235/12 (2020.01); F23N 2235/20 (2020.01)
Citation (search report)
- [YD] DE 3105862 A1 19820909 - STIEBEL ELTRON GMBH & CO KG [DE]
- [Y] DE 2607286 A1 19770901 - TUEZELESTECHNIKAI KUTATOINTEZ
- [AD] DE 3006683 C2 19880811
- [A] DE 3238682 A1 19840419 - KUTZNER LUITPOLD [DE]
- [A] PATENT ABSTRACTS OF JAPAN vol. 13, no. 335 (M-856)(3683) 27. Juni 1989 & JP-A-11 14 617 ( RINNAI CORP ) 8. Mai 1989
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0505714 A2 19920930; EP 0505714 A3 19930303; EP 0505714 B1 19960124; DE 4109841 A1 19921001; DE 4109841 C2 19940609; DE 59205137 D1 19960307; PT 100296 A 19940429; PT 100296 B 19990730
DOCDB simple family (application)
EP 92102550 A 19920215; DE 4109841 A 19910326; DE 59205137 T 19920215; PT 10029692 A 19920325