| 摘要 |
<p>The present invention relates to a forcibly ventilated window, or door consisting of hollow-chambered profiled sections with a seal disposed between a blind frame (B) and a casement(F) and sealing outward, and a mechanism for supply of fresh air through the blind frame (B). Fresh air is supplied through the blind frame via at least one ventilating seal (VD) to the interior of the building, and a device arranged in the fresh-air current (L) and acting in dependence on wind pressure regulates amount of fresh air . At least one air-permeable element (T) being incorporated in the window's blind frame (B) front chamber (VK) and situated in the fresh-air current (L) path is provided with a structure that whirls air and/or restrict amount of air flowing inwards when a defined air pressure (p2) is exceeded. Said blind frame (B) is provided on its outer side with at least one aperture (01) and on its inner side with at least one another aperture (02).</p> |
