| 摘要 |
PURPOSE:To prevent extraordinary combustion such as explosion or the like from occurring by providing control means in which an air flow rate sensor is provided and which actuates an electromagnetic pump (VP) and an igniter (LG) after the blast quantity of a fan motor (FM) reaches a predetermined air flow rate, thus shifting the apparatus to combustion. CONSTITUTION:When a fan motor (FM) 6 has been locked for some reason or another, an air flow rate sensor 16 does not detect the air flow rate. Therefore, the VP and IG drive circuit 15 of a control part 18 does not actuate VP 4 and IG 8, and kerosene is not sprayed still in an air deficient state. As described above, after the blast quantity from the FM 6 has reached a predetermine flow rate, the VP 4 and IG 8 actuated. By this organization, if there is no air flow rate from the FM 6, the spraying of kerosene is not carried out, and hence no unburnt gas is stored in a combustion chamber 5, but even when the locking of the FM 6 is released and air is abruptly supplied into the combustion chamber, generation of any dangerous condition such as explosion or the like can be prevented. |
