| 摘要 |
A supply air device for spreading an air flow from a generally flat, perforated external element (21,22,23), comprising a box-like casing (10) serving as an air distribution chamber and having means for connection to a supply air duct, and at least one primary side-spreading device (18,26) located in the distribution chamber and being adapted to bring about a forwardly directed, transversally diverging air flow towards and through said perforated external element. Side guiding plates (24,25) are provided in the distribution chamber so as to extend between the primary side-spreading device (26) and side edge portions (22,23) of said perforated external element, said guiding plates being bent into a convexly curved configuration, as seen from the front of the device, whereby the air flow (P1,P2,P3) is caused to additionally diverge transversally, especially to about 180 DEG . |
