| 摘要 |
PROBLEM TO BE SOLVED: To simplify the structure, and make the device compact by eliminating the dimension of a nozzle unit section by attaching a nozzle unit from among a plurality of units, to a burner cap through a unit base which is provided in a burner combustion chamber, and arranging the nozzle unit in the combustion chamber. SOLUTION: This fuel flow rate control device 2 is constituted of a nozzle unit 12, an electromagnetic pump unit 15, and a proportional valve unit 19. The nozzle unit 12 comprises a nozzle 11, a nozzle holder 10 and a nozzle main body 8, and is arranged in a burner combustion chamber 20. A unit base 22 is mounted on a burner cap 21, and the nozzle unit 12 is attached to the unit base 22. The nozzle 11 is constituted in such a manner that a returning path 7a and a feeding path 3c are provided in parallel at the center, and the nozzle 11 is connected in the vicinity of a jetting port 9. Therefore, the nozzle unit 12 is attached to the inside of the burner combustion chamber 20 in such a manner that the nozzle unit 12 is attached to the burner cap 21 through the unit base 22 to which the nozzle unit 12 is attached, and the attaching becomes easier.
|
