| 摘要 |
<p>A cross flow fan 8 including an impeller 8a having at least two rings 8b arranged with intervals in a fan rotation axis O direction and a plurality of blades 20 that are arranged, between correlated rings 8b, with intervals in a circumferential direction of the rings 8b, in which the blade 20 is divided into plural areas in the fan rotation axis O direction, and both ends adjacent to the rings 8b are denoted as the blade-ring proximate sections 20a and the center portion of the blade 20 is denoted as the inter-blade-ring center section 20b. The blade 20 is formed such that the thickness of the inner peripheral blade end 20c of the blade 20 that is the inner peripheral end of the impeller 8a is smaller in the inter-blade-ring center section 20b than in the blade-ring proximate section 20a.</p> |
