Gas burner operating system

A gas burner operating system comprising a control unit installed in the body of a gas burner and connected to an electronic igniter in the body of said gas burner, and an operating unit provided outside the body of said gas burner and respectively connected to said control unit and said electronic igniter, wherein:

• said control unit comprises a valve seat supported in the body of said gas burner, and a cock, a pressure differential device and a normal-close type medium flowrate control valve respectively supported in said valve seat, said cock being connected to an external gas source and adapted to regulate the flowrate of fuel gas passing through as well as to control a micro-switch, which controls the connection of power supply to said electronic igniter, said pressure differential device comprising a first shell and a second shell coupled to each other face-to-face, a double valve supported in said second shell, a normal-close valve supported in said second shell and electrically connected to said electronic igniter, a rubber diaphragm positioned in between said first shell and said second shell and supported on a pressure spring, a diaphragm valve coupled to said rubber diaphragm, a first pressure chamber defined between said first shell and said rubber diaphragm and disposed in communication with said normal-close valve for enabling fuel gas to pass from said first pressure chamber to said normal-close valve, a second pressure chamber defined between said second shell and said rubber diaphragm, said double valve comprising a normally opened first valve plug adapted to control intake flow of fuel gas into said second pressure chamber, said a normally closed second valve plug adapted to control the passage of fuel gas from said second pressure chamber to an ignition flame nozzle of the gas burner, and an output port disposed in communication between said first pressure chamber and said valve seat for output of fuel gas, said diaphragm valve being adapted to close/open said output port;
• said operating unit comprises a power switch, and a linkage switch formed of a high flame control switch and a medium flame control switch, said power switch being connected to a common contact of said micro-switch and said electronic igniter, said micro-switch having a normal-open terminal connected said electronic igniter, said high flame control switch being electrically connected to said normal-open valve and adapted to close/open said normal-open valve, said medium flame control switch being electrically connected to said medium flowrate control valve and adapted to close/open said medium flowrate control valve.