| 摘要 |
<p>A blower device composed of a centrifugal impeller (1) and a fan casing (2) having a suction opening (3) facing the centrifugal impeller (1). The fan casing (2) has two blowout openings (4, 5) and two airflow paths (6, 7). Further, the fan casing (2) has a flow path opening/closing means (8) for selectively opening and closing the two airflow paths (6, 7). An airflow blown out in the centrifugal direction from the centrifugal impeller (1) is led to either of the two blowout openings (4, 5) via either of the two airflow paths (6, 7).</p> |
