| 摘要 |
DISCLOSED IS A CROSS-FLOW FAN (10) WHERE AN INNER DIAMETER (D) AND AN OUTER DIAMETER (D) OF A FAN BLADE (21) MEET THE RELATIONSHIP EXPRESSED BY 0.55 ?D/D ?O.95. IN CROSS-FLOW FAN (10), (N) REPRESENTING NUMBER OF FAN BLADES (21), A CHORD LENGTH (L) AND OUTER DIAMETER (D) OF FAN BLADES (21), AND (M) REPRESENTING NUMBER OF BLADE WHEELS (12) MEET THE RELATIONSHIPS EXPRESSED BY OF 0.5 ?L/(?D/N) ?2.8 AND 0.15 ? ?D/(N X M) ?3.77. A PLURALITY OF BLADE WHEELS (12) ARE STACKED ON EACH OTHER IN A MANNER THAT A DISPLACEMENT ANGLE (?) IS GENERATED WITHIN THE RANGE OF (1.2 X 360°/(N X M)) ???(360°/N) BETWEEN ADJACENT BLADE WHEELS (12). THE DISPLACEMENT ANGLE (?) IS SET SO THAT THE OVERLAPPING NUMBER OF FAN BLADES (21) HAVING AN EQUAL INSTALLATION ANGLE IS AT MOST 5% OF N X M REPRESENTING A TOTAL NUMBER OF FAN BLADES (21). THE PRESENT INVENTION CAN PROVIDE A CROSS-FLOW FAN THAT CAN SUCCEED IN NOISE REDUCTION, A MOLDING DIE USED TO PRODUCE THE CROSS-FLOW FAN, AND A FLUID FEEDER EQUIPPED WITH THE CROSS-FLOW FAN. (FIGURE 1) |
