| 摘要 |
PURPOSE: A complex cooling fan is provided to improve cooling performance by forming an axial flow blade on an edge portion of a hub and to reduce loss by installing a vane on a front portion of the hub. CONSTITUTION: A complex cooling fan comprises a water pump supporting a cooling fan by being mounted on an engine; a rotational shaft protruded on the water pump; a hub(10) rotating according to rotation of the rotational shaft; a through hole(11) fixing the hub on the rotational shaft by being mounted in the middle of the hub; plural vanes(21) protruded on a side of the hub; a center vane(20); an axial flow blade(30); and plural blades(31) radially formed on an edge of the hub. Thereby, the complex cooling fan improves cooling performance by forming the axial flow blade on an edge portion of the hub. Moreover, the complex cooling fan reduces loss by installing the center vane on a front portion of the hub.
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