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Machine translation
1. (WO1980000608) COMBUSTION CONTROL SYSTEM
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1980/000608    International Application No.:    PCT/JP1979/000231
Publication Date: 03.04.1980 International Filing Date: 31.08.1979
IPC:
F23N 5/20 (2006.01), F23N 5/24 (2006.01)
Applicants:
Inventors:
Priority Data:
78/110773 11.09.1978 JP
Title (EN) COMBUSTION CONTROL SYSTEM
(FR) SYSTEME DE COMMANDE DE COMBUSTION
Abstract: front page image
(EN)A control circuit for controlling combustion of burners of hot water boilers, warm-wind heaters and the like, in which a sequential control function is provided for continuing spark discharge operations for igniting fuel during a predetermined time period after the burner is first ignited. Combustion control systems are usually so designed that the igniting operation is discontinued by a safety timer unless the burner is ignited during a certain safety time period. However, it is further required that the discontinuation of igniting operation is secured even when the safety timer is out of order. To accomplish this while utilizing fewer timers, in addition to the safety timer there is independently provided another timer for measuring the time which is elapsed after the start of the igniting operation. Both the timers are started simultaneously, and when the igniting operation fails to ignite the burner the additional timer operates to shut fuel valves off.
(FR)Un circuit de commande pour commander la combustion de bruleurs de chaudiere d"eau chaude, de chauffage d"air chaud et autres, possede une fonction de commande sequentielle pour effectuer des decharges d"etincelles continues en vue de mettre a feu le combustible pendant une periode de temps predeterminee apres l"allumage initial du bruleur. Des systemes de commande de combustion sont concus en general de sorte que l"operation d"allumage s"effectue de maniere discontinue par une minuterie de securite a moins que le bruleur ne s"allume pendant une certaine periode de temps de securite. Cependant, il est necessaire que la discontinuite de l"operation d"allumage soit sans danger meme lorsque la minuterie de securite est hors d"etat de marche. Dans ce but, et tout en utilisant peu de minuteries, en plus de la minuterie de securite on monte une autre minuterie independante pour mesurer le temps qui s"ecoule apres le debut de l"operation d"allumage. Les deux minuteries se mettent en marche simultanement et lorsque l"operation d"allumage ne reussit pas a allumer le bruleur, la minuterie supplementaire ferme les vannes de combustible.
Designated States:
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)