EP 0327516 A1 19890809 - Device for the automatic control of combustion air flow drawn into forced draught boilers by means of an electroventilator.
Title (en)
Device for the automatic control of combustion air flow drawn into forced draught boilers by means of an electroventilator.
Title (de)
Einrichtung für die automatische Kontrolle des Verbrennungsluftdurchflusses mit Hilfe eines elektrischen Ventilators für Zwangsbelüftungsverbrenner.
Title (fr)
Appareil pour le contrÔle automatique de l'écoulement d'air comburant aspiré pour chaudières à tirage forcé, au moyen d'un ventilateur électrique.
Publication
Application
Priority
IT 6038888 A 19880205
Abstract (en)
This invention relates to a device for the automatic control of the combustion air delivery drawn into modern boilers fitted with an air-tight or non air-tight combustion chamber, having forced draught with combustion air drawn either directly from outside or from the room in which the boiler is installed. The device according to the invention can automatically control the combustion air delivery by varying the revs of the electric fan as necessary according to the gas delivery supplied by the modulating distribution valves so as to maintain the air-to-fuel ratio of the mixture from the burner, constant and equal to the optimum value.
IPC 1-7
IPC 8 full level
CPC (source: EP)
F23N 1/025 (2013.01); F23N 5/18 (2013.01); F23N 2233/08 (2020.01)
Citation (search report)
- [A] FR 2353801 A1 19771230 - SAUNIER DUVAL [FR]
- [A] DE 2011717 A1 19701203
- [A] FR 2515314 A1 19830429 - SECCACIER [FR]
- [A] US 3119270 A 19640128 - WAYNE RONALD G
- [A] US 3590259 A 19710629 - JOHNSTON RUSSEL R, et al
- [A] US 4464936 A 19840814 - MCINTIRE RONALD A [US], et al
- [A] PATENT ABSTRACTS OF JAPAN, vol. 9, no. 70 (M-367)[1793], 30th March 1985; & JP-A-59 202 319 (MATSUSHITA DENKI SANGYO K.K.) 16-11-1984
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR LI LU NL SE
DOCDB simple family (publication)
EP 0327516 A1 19890809; IT 1220226 B 19900606; IT 8800603 A0 19880205
DOCDB simple family (application)
EP 89830040 A 19890206; IT 6038888 A 19880205