Primary control and ignition system for oil burners

In an electrical primary control and ignition system for oil burners, the combination including burner control means adapted to be connected to a main line source of AC current, a low voltage control circuit including burner ignition detection means, means providing a substantially lower voltage than line voltage in said control circuit, means in said low voltage control circuit including solid state means effective to actuate said burner control means, means interfacing between said low voltage control circuit and said burner control means, plasma generating means adapted to be connected to said main line source of AC current, and combustion initiation means operatively connected to said plasma generating means.

The combination as set forth in claim 22, said interfacing means including a reed switch having a pair of normally open contacts, said control circuit including a coil encompassing said contacts whereby energization of said coil effects closing of said contacts, said control circuit also including a DC supply for said coil.

In an ignition system for oil burners, the combination comprising ignition detection means, plasma generating means adapted to be connected to a main line source of AC current, combustion initiation means operatively connected to said plasma generating means, said plasma generating means including a silicon controlled rectifier having an anode, a cathode and a gate, a transformer having a primary winding and a secondary winding, a capacitor, a diode and a resistor, said primary winding and said diode being connected in series with said anode and said cathode, said resistor being connected in parallel with said diode, said capacitor being connected in parallel with said anode and said cathode, and extended ignition means operatively connected to said plasma generating means and effective to maintain energization of said plasma generating means for a predetermined period of time as a function of ignition detected by said ignition detection means.

In an ignition system for oil burners, the combination comprising ignition detection means, plasma generating means adapted to be connected to a main line source of AC current, combustion initiation means controlled by said plasma generating means, said plasma generating means including a silicon controlled rectifier having an anode, a cathode and a gate, a transformer having a primary winding and a secondary winding, a capacitor, a diode and a resistor, said primary winding and said diode being connected in series with said anode and said cathode, said resistor being connected in parallel with said diode, said capacitor being connected in parallel with said anode and said cathode, said plasma generating means also including trigger means and electronic brake means, and extended ignition means operatively connected to said plasma generating means and effective to maintain energization of said plasma generating means for a predetermined period of time as a function of ignition detected by said ignition detection means.