| 摘要 |
PROBLEM TO BE SOLVED: To provide a mixed flow fan having a resin-made blade capable of effectively preventing peeling-off and back flow of a stream passing through the fan, reducing cost and providing high fan efficiency when compared with a conventional mixed flow fan, and preventing the occurrence of a crack due to a stress generated by stress concentration during the rotation of the fan and thermal shrinkage of a material, and having excellent durability and cooling performance of the fan. SOLUTION: In this mixed flow fan in which a mounting part to a mating member is made of metal and the blade is made of resin, the metallic mounting part is formed into a cone shape, and the resin-made blades are independently provided in the conelike mounting part. Moreover, a metallic spider part separate from a metallic conelike disc is independently attached to the conelike disc by welding or using a rivet, bolt, etc., as a means for providing the resin- made blades in the metallic conelike mounting part independently, and the resin-made blades are integrally molded in the spider part to provide the mixed flow fan having high performance and high durability inexpensively.
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