Gas burner operating system

Abstract

A gas burner operating system includes a control unit installed in the body of a gas burner and connected to an electronic igniter in the body of the gas burner, the operating unit using a cock, a pressure differential device, a medium flowrate control valve and a low flowrate control valve to control the operation of the gas burner and the intensity of the burner flame, and an operating unit provided outside the body of the gas burner for enabling the user to control the operation of the control unit and the electronic igniter of the gas burner at a remote place away from the gas burner.

What the invention claimed is:  
     
         1 . 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 normal-open 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, a second pressure chamber defined between said second shell and said rubber diaphragm, 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.    
     
     
         2 . The gas burner operating system of  claim 1  wherein said control unit further comprises a normal-close type low flowrate control valve, and said operating unit further comprises a low flame control switch linked to the high flame control switch and medium flame control switch of said linkage switch, said low flame control switch being electrically connected to said low flowrate control valve and adapted to close/open said low flowrate control valve.  
     
     
         3 . The gas burner operating system of  claim 1  further comprising a temperature sensor electrically connected to said electronic igniter and said linkage switch and adapted to detect the temperature of a predetermined place and to control the operation of said electronic igniter and said linkage switch subject to the value of temperature detected.  
     
     
         4 . The gas burner operating system of  claim 3  wherein said temperature sensor has electric contacts connected between said electronic igniter and said power switch.  
     
     
         5 . The gas burner operating system of  claim 1  wherein said operating unit further comprises an indicator light connected to a battery power supply being connected to said electronic igniter, and a control circuit adapted to turn on said indicator light when the power of said battery power is low.  
     
     
         6 . The gas burner operating system of  claim 1  wherein said operating unit further comprises a receiver installed in the body of the gas burner and electrically connected to said electronic igniter and said control unit, and a remote-controller adapted to transmit control signal to said receiver by radio to electrically connect said electronic igniter to the common contact of said micro-switch and to control on/off of said normal-open valve, said medium flowrate control valve and said low flowrate control valve.  
     
     
         7 . The gas burner operating system of  claim 1  wherein said normal-open valve comprises a gas tube peripherally sealed with at least one O-ring for the passing of fuel gas; said medium flowrate control valve comprises a gas tube peripherally sealed with at least one O-ring for the passing of fuel gas, the gas tube of said medium flowrate control valve having an inner diameter smaller than the gas tube of said normal-open valve; said low flowrate control valve comprises a gas tube peripherally sealed with at least one O-ring for the passing of fuel gas, the gas tube of said low flowrate control valve having an inner diameter smaller than said medium flowrate control valve.  
     
     
         8 . The gas burner operating system of  claim 1  further comprises wire gauze filter means respectively installed in said cock, said valve seat and said pressure differential device and adapted to remove solid matter from fuel gas passing through.  
     
     
         9 . 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.    
     
     
         10 . The gas burner operating system of  claim 9  wherein said control unit further comprises a normal-close type low flowrate control valve, and said operating unit further comprises a low flame control switch linked to the high flame control switch and medium flame control switch of said linkage switch, said low flame control switch being electrically connected to said low flowrate control valve and adapted to close/open said low flowrate control valve.  
     
     
         11 . The gas burner operating system of  claim 9  further comprising a temperature sensor electrically connected to said electronic igniter and said linkage switch and adapted to detect the temperature of a predetermined place and to control the operation of said electronic igniter and said linkage switch subject to the value of temperature detected.  
     
     
         12 . The gas burner operating system of  claim 11  wherein said temperature sensor has electric contacts connected between said electronic igniter and said power switch.  
     
     
         13 . The gas burner operating system of  claim 9  wherein said operating unit further comprises an indicator light connected to a battery power supply being connected to said electronic igniter, and a control circuit adapted to turn on said indicator light when the power of said battery power is low.  
     
     
         14 . The gas burner operating system of  claim 9  wherein said operating unit further comprises a receiver installed in the body of the gas burner and electrically connected to said electronic igniter and said control unit, and a remote-controller adapted to transmit control signal to said receiver by radio to electrically connect said electronic igniter to the common contact of said micro-switch and to control on/off of said normal-open valve, said medium flowrate control valve and said low flowrate control valve.  
     
     
         15 . The gas burner operating system of  claim 9  wherein said normal-open valve comprises a gas tube peripherally sealed with at least one O-ring for the passing of fuel gas; said medium flowrate control valve comprises a gas tube peripherally sealed with at least one O-ring for the passing of fuel gas, the gas tube of said medium flowrate control valve having an inner diameter smaller than the gas tube of said normal-open valve; said low flowrate control valve comprises a gas tube peripherally sealed with at least one O-ring for the passing of fuel gas, the gas tube of said low flowrate control valve having an inner diameter smaller than said medium flowrate control valve.  
     
     
         16 . The gas burner operating system of  claim 9  further comprises wire gauze filter means respectively installed in said cock, said valve seat and said pressure differential device and adapted to remove solid matter from fuel gas passing through.