| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a power-saved and silent room air conditioner by reducing noise while increasing the air volume of a once-through fan in the indoor unit of the air conditioner. <P>SOLUTION: In the once-through fan 1, a disk 13 has vanes 12. A camber line 17 indicating the center of the cross sectional thickness of the vane includes two circular arcs. The warped direction of each circular arc is inverted. The pressure surface 18 of the vane 12 matches the rotating axis direction. The width of a flow passage between the vanes can be obtained since their outer diameter sides vary within the range of 60 to 80% relative to the inner diameter sides. <P>COPYRIGHT: (C)2008,JPO&INPIT |
