| 摘要 |
<p>PURPOSE:To reduce the pressure loss at the outlet of a blower and reduce the noise by shaping baffle plates, which are provided in a suitable number at the front of the outlet, in arcs differing in length at the two opposite ends. CONSTITUTION:The arcs in which baffle plates 6 are shaped are varied in length between the left and the right in such a manner as to make the shapes of the baffle plates 6 suitable to the inflow angles of the air blown by an axial flow 8 when it rotates. For example, at the left where the downward swirl component of a spiral of air acts the baffle plates 6 are shaped to have longer arcs so as to turn the air flowing in downward effectively upward, whereas at the right where the upward swirl component of the spiral of air acts the baffle plates 6 are shaped to have shorter arcs. This variation in length of the arcs makes it possible to send the air in a specific direction effectively and securely, to prevent a return of air at a short cycle from the outlet to the inlet of the outdoor apparatus, and to ensure stability of the operation.</p> |
