| 摘要 |
An air distribution device (10) comprises an air inlet (12) which conducts incoming ventilation air (56), through a perforated distributing and throttling plate (32), to a distribution chamber (14) which is bounded on one side by a perforated front cover plate (24) of the device. Located inwardly of the front cover plate are guide rails (26) which are perpendicular to the incoming air flow and steer the exiting air in a first main direction. The device further comprises plates (30) which extend at right angles to the rails (26) and which function to support the guide rails and to guide the air exiting from the device in another main direction. The distributing end throttling plate (32) exhibits through-flow zones (34, 35, 36) with intermediate imperforate or constricted induction zones (38) on the downstream side of the plate, these zones being open towards a secondary air port (42) provided on the device. |
