BURNER CONTROL APPARATUS

Disclosed is a d.c. powered burner control system having a fuel valve controlled by a micro-power oscillator exclusively powered by energy present in electrical current rectified by flame emanating from the burner. A d.c. to a.c. inverter controlled by the oscillator converts the d.c. supply into an...

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Bibliographische Detailangaben
Hauptverfasser: RIORDAN W,US, FOSTER G,US
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:Disclosed is a d.c. powered burner control system having a fuel valve controlled by a micro-power oscillator exclusively powered by energy present in electrical current rectified by flame emanating from the burner. A d.c. to a.c. inverter controlled by the oscillator converts the d.c. supply into an a.c. signal applied across a region occupied by flames emanating from the burner which flame rectifies the a.c. signal to thereby produce the negative flame signal required to power the oscillator. Preferably a capacitor stores energy present in the flame rectifier current and provides operating power to the oscillator, the output of which maintains the fuel valve in an open position.