| 摘要 |
<p>Device for fire and/or smoke control, comprising a frame and at least one turbo-jet engine arranged on the frame, the engine having a centre line, an inlet opening and an outlet opening, and comprising a funnel lead-through arranged downstream from the turbo-jet engine, wherein the funnel lead-through defines a conical passage which is in line with the centre line of the turbo-jet engine, and with a relatively wide inlet opening faces the outlet opening of the turbo-jet engine, wherein the inlet opening of the conical passage has a diameter that is larger than the diameter of the outlet opening of the turbo-jet engine.</p> |
