| 摘要 |
<p>The conveying device (1) has two rotors (7,8) that are propelled in an acceleration chamber (4) around a rotor axis (6) and provided with several rotor blades (9,11). An inlet (3) is axially opened into acceleration chamber relative to rotor axis. An outgoing end (16) is moved tangentially from the acceleration chamber relative to the rotor axis. The acceleration chamber is expanded in bell-shape from the inlet. The rotor blades (9) are set with a free distance to an inside wall (14) of the acceleration chamber from 33% of maximum radial extension of the rotor blades (9).</p> |
