Burner control system

Details Burner control system Burner control system

F - Mech Eng,Light,Heat,Weapons

23

N

341/19

F23N 5/20 (2006.01)

Patent

CA 1113176

APPLICATION FOR CANADIAN LETTERS PATENT INVENTOR WILLIAM J. BOWLES WILLIAM J. RIORDAN TITLE BURNER CONTROL SYSTEM ABSTRACT OF THE DISCLOSURE -A burner control system including a valve for controlling the flow of fuel to a burner, a flame sensor for producing a flame signal in response to the presence of flame at the burner, a startup circuit for producing a start-up signal, a control circuit for opening the valve to establish fuel flow in response to either the flame or start-up signal, and a timing capacitor first delays the generation of the start-up signal while charging during a predetermined purge period after energization of the start-up circuit and then terminates the start-up signal while discharging during a predetermined ignition period. A mono- stable electronic switch produces the start-up signal in response to the charge level on the timing capacitor and a valve initiator for opening the valve is powered by energy discharged by the timing capacitor during the ignition period.

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