| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a blower impeller constituted, from a viewpoint of improvement of fan efficiency, by the blower impeller having two blades, and aimed at reduction of rotation noise generated from the blades. <P>SOLUTION: The blower impeller is constituted that a main blade consisting of the number of blades being two is provided, the chord length on the outer peripheral side of the main blade is longer than a chord length on the hub side, auxiliary blades approximately in a fan shape consisting of the number of blades being two are situated between the main blades, the length in a radial direction of the auxiliary blades is shorter than the length in a radial direction of the main blade, and the blade height of the auxiliary blade is lower than the blade height of the main blade. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
