| 摘要 |
PROBLEM TO BE SOLVED: To provide a turbo fan for a ceiling cassette type air conditioner to enable production of a turbo fan only by a simplified work by improving the shape of the turbo fan applied on the air conditioner and in turn, enable reduction of an air volume of the turbo fan generated thereby and reduction of the generation of noise. SOLUTION: The turbo fan for the ceiling cassette type air conditioner comprises a cylinder cowling 27b so formed that sucked fluid is guided; a hub 27c formed that an outside diameter is reduced to a value lower than the inside diameter of the cylinder cowling 27b and prevented from forming an obstacle during integral injection molding; and a blade 27a vertically formed between the cylinder cowling 27b and the hub 27c and formed in an inclination state such that an inside diameter is decreased from the cylinder cowling side toward the hub side, and simultaneously with suction of a more air volume, any influence is also prevented from being exerted on the increase of a constant pressure. |
