| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a multi-blade fan with superior fan efficiency and provide an air conditioner having the multi-blade fan. <P>SOLUTION: A casing 17 houses a first wall surface 21 which is disposed at a location radially outside an impeller 11 and closer to a front face than the impeller 11 such that the first wall surface 21 encircles a suction port and faces a rear face, a second wall surface 22 which is axially opposite to a communicating portion 13 of the impeller 11 at a location closer to the rear face than the first wall 21, and a third wall surface 23 extending from the front face side F toward the rear face side R between the first wall surface 21 and the second wall surface 22. <P>COPYRIGHT: (C)2012,JPO&INPIT |
