Liquid fuel burner for wide range of load

Claim 1

A BURNER SYSTEM FOR BURNING LIQUID FUEL IN A FURNANCE AT A VARIABLE COMBUSTION RATE COMPRISING A SOURCE OF LIQUID FUEL AND GASEOUS MEDIUM FOR ATOMIZING SAID FUEL; A BURNER THROAT ADAPTED TO BE PROVIDED IN THE WALL OF SAID FURNACE; AN ELONGATED FUEL NOZZLE OF THE GAS ATOMIZING TYPE FOR DELIVERING A MIXTURE OF LIQUID FUEL AND GASEOUS ATOMIZING MEDIUM TO SAID BURNER THROAT; SAID FUEL NOZZLE HAVING A NOZZLE TIP AT THE FURNACE END THEREOF INCLUDING A NOZZLE WALL ADAPTED TO FACE THE INTERIOR OF SAID FURNACE; A PLURALITY OF ORIFICES PROVIDED IN SAID NOZZLE WALL FOR DISCHARGING JETS OF A MIXTURE OF SAID FUEL AND ATOMIZING MEDIUM INTO SAID FURNACE; SAID ORIFICES COMPRISING AT LEAST TWO GROUPS, THE ORIFICES OF EACH GROUP BEING SPACEDLY LOCATED ON AT LEAST ONE IMAGINARY LINE SURROUNDING THE LONGITUDINAL AXIS OF SAID NOZZLE, WITH THE LINES OF SAID GROUPS BEING SPACED FROM SAID AXIS AT PROGRESSIVELY LARGER DISTANCES; THE AXES OF THE ORIFICES IN EACH GROUP BEING INCLINED TO THE LONGITUDINAL AXIS OF SAID NOZZLE AT AN ACUTE ANGLE, WITH THE SIZE OF SAID ANGLE INCREASING WITH INCREASING DISTANCE FROM SAID NOZZLE AXIS; A MULTIPLICITY OF MIXING CHAMBERS FOR MIXING SAID FUEL AND ATOMIZING MEDIUM; MEANS FOR OPERATIVELY CONNECTING EACH OF SAID MIXING CHAMBERS WITH ONE OF SAID GROUPS OF ORIFICES; CONDUIT MEANS FOR CONNECTING EACH OF SAID MIXING CHAMBERS WITH SAID SOURCE OF FUEL AND WITH SAID SOURCE OF ATOMIZING MEDIUM; FLOW CONTROL MEANS COOPERATING WITH EACH OF SAID CONDUIT MEANS TO CONTROL THE FLOW OF FUEL AND ATOMIZING MEDIUM TO EACH GROUP OF ORIFICES; AND MEANS FOR SELECTIVELY OPERATING THE FLOW CONTROL MEANS OF EACH GROUP OF ORIFICES AS REQUIRED BY VARIATIONS IN SAID COMBUSTION RATE.