| 摘要 |
Lifting device (10) for persons and/or loads, comprising two opposite rotors (12, 14), a cardan-suspended casing (16) which houses the drive (22, 24) and supports the output shafts (18, 20) of the rotors (12, 14), as well as a control unit (36) for the synchronous or separated adjustement of the pitch angles of the rotors (12, 14), the control unit being integrated to the casing or outside of the latter.
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