| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an efficient diffuser of a blower used for a vacuum cleaner or the like. <P>SOLUTION: A blower for a vacuum cleaner has a diffuser with an increased efficiency by coupling the diffuser vanes of the attack angle A with the return guide vanes of the attack angle B where angle A is between 4°and 6°and angle B is between 6°and 20°. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
