| 摘要 |
<p>A louvered ventilator consists of several vertically arranged louver members (2) which are fastened at their upper and lower ends to a frame construction (3). Such louvered ventilators are used for separating water (rain) from the air passing through. The louver members (2) have S-like shape and are provided with longitudinally disposed drain bores or canals (8) which are open towards the surface of the louver member through a slit (9).</p> |
