| 摘要 |
PROBLEM TO BE SOLVED: To provide an axial blower superior in a flowing characteristic and a noise characteristic, by providing the most effective shape, when using a rotary hub cone. SOLUTION: This axial blower has a motor 2 installed in a cylindrical caring 1, an impeller 3 installed on a shaft of the motor 2, and the rotary hub cone 5 installed on the impeller 3, and is characterized in that the rotary hub cone 5 is composed of a cylindrical part 5a connected to the impeller 3 and a spherical part 5b continuously connected to the cylindrical part 5a. COPYRIGHT: (C)2008,JPO&INPIT
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