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Machine translation
1. (WO1980001604) COMBUSTION CONTROL EQUIPMENT
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1980/001604    International Application No.:    PCT/JP1980/000008
Publication Date: 07.08.1980 International Filing Date: 24.01.1980
IPC:
F23N 5/20 (2006.01), F23N 5/24 (2006.01)
Applicants:
Inventors:
Priority Data:
79/6158 24.01.1979 JP
Title (EN) COMBUSTION CONTROL EQUIPMENT
(FR) DISPOSITIF DE COMMANDE DE COMBUSTION
Abstract: front page image
(EN)Combustion control equipment for controlling combustion conditions of burners as a heat source of hot-water boiler or hot-air heater. Such combustion control equipment is equipped with a memory circuit which issues an alarm signal in response to an abnormal condition such as overheating or misfiring, and a signal which terminates the combustion operation. The memory circuit also holds the shut-down condition. The memory circuit prevents erroneous operation caused by noise signals generated from external output units in the combustion control equipment. For the purpose, there is provided a circuit for retrieving emergency signals, which operates at a timing non-coincident with the generation of noise signals from the external output units, and its outputs are applied to the input of the memory circuit. The retrieval circuit is adapted to retrieve emergency signals upon receiving clock pulses from a timer, and is further adapted so that the phase of its retrieval timing is different from that of noise generation. Thus, the retrieval timing is set so as to be different from both the timing for ON-OFF control of the external output units and the discharge-pulse generation timing of a firing device.
(FR)Dispositif de commande de combustion pour controler les conditions de combustion d"un bruleur tel qu"une source de chaleur d"une chaudiere a eau chaude ou d"un appareil de chauffage a air chaud. Un tel dispositif de commande de combustion est equipe d"un circuit memoire qui fournit un signal d"alarme en reponse a une condition anormale telle qu"un chauffage defectueux ou un mauvais allumage, et un signal qui termine la combustion. Le circuit memoire contient egalement les conditions d"arret. Ce circuit memoire empeche un mauvais fonctionnement provoque par des signaux sonores produits par des unites de sortie externes dans l"installation de commande de combustion. A cet effet, un circuit est prevu pour extraire des signaux d"urgence, qui fonctionne avec une sequence de temps ne coincidant pas avec les signaux sonores provenant des unites de sortie externes, et ses sorties sont appliquees a l"entree du circuit memoire. Le circuit d"extraction est adapte pour extraire des signaux d"urgence lorsqu"il recoit des impulsions d"horloge provenant d"une minuterie, et est aussi adapte de sorte que la phase de sa synchronisation d"extraction soit differente de celle de la production de signaux sonores. Ainsi, la synchronisation d"extraction est reglee de maniere a etre differente a la fois de la synchronisation de la commande MARCHE-ARRET des unites de sortie exterieures et de la synchronisation de production d"impulsion-decharge d"un dispositif d"allumage.
Designated States:
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)