| 摘要 |
<p>Apparatus for producing an air curtain at the perimeter of a room, which comprises a plurality of air curtain units for delivering a thin, fan-shaped flow of air mounted adjacent the interior of the wall defining the room and spaced apart by a distance such that the fan-shaped flow of air delivered by each said air curtain unit overlaps the fan-shaped flow of air delivered by the next adjacent air curtain unit; each said air flow unit having an air inlet, a narrow, elongated air outlet, said air outlet being longer and narrower than said air inlet, and a wall between said air inlet and air outlet defining a flow path for air flowing from said air inlet to said air outlet, said wall having a plurality of cross-sections along said flow path to provide a transition between said air inlet and air outlet.</p> |
