| 摘要 |
<p>The fan is provided with: a high pressure air-generating unit that generates high pressure air of atmospheric pressure to atmospheric pressure + 10 kPa; a fluid element nozzle unit; and a duct that connects the high pressure air-generating unit and the fluid element nozzle unit. The fluid element nozzle unit is provided with: an inflow port into which the high pressure air flows; a blowout port that expands towards the outside; a main element flow channel from the inflow port to the blowout port; and a circulating air channel, branching from one surface of the long side of the main element flow channel and reaching the surface of the opposite long side of the main element flow channel. The respective cross-sections of the inflow port, blowout port and main element flow channel in the direction perpendicular to the flow of the high pressure air are rectangular and the air flow blown out from the blowout port oscillates in the direction of the short sides of the main element flow channel. Because the air flow can be made to oscillate in the direction of the short sides of the main element flow channel, it is possible to send air of a high wind speed to a wide area using little energy. The feeling of a cool breeze is obtained over a wide area and comfort is improved.</p> |
