| 摘要 |
A fan assembly comprises a nozzle 1 mounted on a base 16 which houses means for creating an air flow through the nozzle 1. The nozzle 1 comprises an interior passage 10 which receives air flow from the base 16, and a mouth 12 through which the air flow is emitted. The nozzle 1 extends substantially about an axis x-x to define an opening through which air from outside the fan assembly is drawn by the air flow emitted from the mouth 12. The nozzle 1 further comprises a surface over which the mouth 12 is arranged to direct the air flow. The surface comprises a diffuser portion 46 tapering away from the axis x-x, and a guide portion 48 downstream from the diffuser portion 46 and angled thereto. The nozzle 1 may comprise a substantially annular or circular loop. The means to create an air flow may be an impeller 30 driven by a motor 22.
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