COMBUSTION VOLUME ADJUSTING DEVICE FOR NOZZLE SPRAY TYPE BURNER

摘要

PURPOSE:To enable a simultaneous adjustment of combustion air flow and fuel atomizing amount and to enable an easy and smooth control of combustion volume, by a method wherein a moving part of an air discharge amount adjusting system is moved in synchronism with a moving part of a fuel atomizing amount adjusting device. CONSTITUTION:With a blower 21 and a fuel pump 26 actuated by turning on an operation switch, air sucked through a suction passage 22 is fed to a delivery passage 23 as a combsution air. When a cum 36 of a butterfly valve 31 is in contact with an adjusting screw 37 thereupon or it is held in a minimum opening degree, a draft resistance in a passage 22 becomes maximum, and a small amount of combustion air is discharged to the passage 23. A control switch 39 is off thereupon, and a sub-nozzle 25 and the fuel pump 26 stop working. Thus, fuel is atomized through a main nozzle 24 alone. When a valve 31 is positioned in a maximum opening degree by operating a tuning knob 35, a combustion air is increased, and simultaneously, a switch 39 is turned on, which results in atomizing fuel from the sub-nozzle 25 as well.