| 摘要 |
<p>PURPOSE:To reduce pressure loss and reduce the generation of noise by providing an enough opening even in either the horizontal blowoff direction or the downward blowoff direction. CONSTITUTION:A horizontal guide impeller 8 is designed to be rotated in the reciprocal directions from a stop position. In a first rotary motion when the inner side 9 of the horizontal guide impeller 8 is turned to the upper side guide face 6, blowoff air is guided to blow to the upper side guide face 6, thereby blowing off horizontally. Furthermore, in a second rotary motion when the inner side 9 is turned to the lower side guide face 7, blowoff air is guided to blow to the lower side guide face 7, thereby blowing off downward.</p> |
