Control circuit for gasified liquid fuel combustion apparatus

In a gasified liquid fuel combustion apparatus in which a gasified fuel is emitted from a nozzle having a valve needle actuated by a solenoid and is mixed with air and supplied to a burner for combustion, a control circuit for said solenoid comprising a power supply;

• a solenoid;
• a power switch;
• a first rectifying circuit and a second rectifying circuit connecting the power supply to said solenoid;
• a normally closed contact switch between said power supply and said first rectifying circuit;
• a timer circuit operable upon closing of said power switch, said timer switch operable to open said contact switch after a predetermined time following closing of said power switch;
• a voltage reducing transformer between said power supply and said second rectifying circuit;
• said first rectifying circuit receiving a voltage higher than but of the same phase as the voltage supplied by said power supply to said second rectifying circuit when said contact switch is closed;
• said second rectifying circuit receiving a lower voltage from the secondary side of said voltage reducing transformer;
• said first and second rectifying circuits being connected to a common output line to provide a high DC output voltage to said solenoid when said contact switch is closed and a low DC output voltage to said solenoid when said contact switch is opened in response to said timer circuit, thereby controlling said solenoid through said solenoid control circuit.