| 摘要 |
PROBLEM TO BE SOLVED: To improve air supply performance of an outdoor machine and to reduce the generation of air supply noise, in an air-conditioning device for a domestic use and an industrial use. SOLUTION: This outdoor machine comprises a heat-exchanger 14, a fan motor 16, a fan 10 and a fan guide 11. In this case, the blade of the fan 10 is inclined in an air supply direction or the fan 10 having the tip central part of a blade on the air supply side situated in an air supply direction from the root central part of the blade is used. By increasing a distance between the fan 10 and the guard 11, the generation of guard noise is reduced. Further, the fan guide 11 is formed in a shape that the fan side in a grill section cut in a shape concentric to a fan rotary shaft is curved in a protrusion toward a fan rotation direction. This constitution recovers a peripheral speed by rotation of a fan as a pressure and improves air supply performance. |
