| 摘要 |
PURPOSE:To prevent the deterioration of combustibility of a combustor such as a stove and the like as well as to average the room temperature distribution by a method wherein both functions of a ventilating fan and a circulator are realized by one runner and besides a feed air quantity and an exhaust air quantity are balanced. CONSTITUTION:When an electromotor is conducted the runner 3 is rotated through the main plate 5 and the room air (a) is sucked in from an inlet port 2 by a vane 6 to flow into the vane 6 cooling the electromotor 4 and discharged to a fan passage 10 to be blown out from an outlet 14 to indoor downward and further is exhausted outdoors from an air supply port 20 partially through an exhaust passage 19 from an exhaust port 21 matching the pressure of the upstream side of the outlet 14. On the other hand outdoor air (b) is discharged by a vane 7 from a feed air port 22 through a feed air cylinder 16 to the fan passage 11 being blown out indoors up from an outdoor air outlet 15 to circulate indoors together with indoor air (a). |
