| 摘要 |
A nozzle 16 for a fan assembly 10 includes an air inlet 14, an air outlet 18, an interior passage for conveying air from the air inlet to the air outlet, an annular inner wall and an outer wall extending about the inner wall. The interior passage 94 is located between the inner wall and the outer wall. The inner wall defines a bore through which air from outside the nozzle is drawn by air emitted from the air outlet. The air outlet is arranged to direct air over an external surface at least partially defining the bore. A flow control port 226 is located downstream from that surface. A flow control chamber 220 is provided for conveying air to the flow control port. A control mechanism selectively inhibits a flow of air through the flow control port. |
