| 摘要 |
PROBLEM TO BE SOLVED: To provide a fan frame structure for less causing reflux phenomena between a propeller and a flow director. SOLUTION: The fan frame structure comprises, mainly, the plurality of flow directors connected to one another with at least one slender strip. The flow directors extending in a curving direction are arranged in a non-concentrically annular shape. Openings are formed in boundaries therebetween, where fan impellers are installed on which a plurality of propellers are set. The propeller terminals have different gaps between the flow directors. COPYRIGHT: (C)2007,JPO&INPIT
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