Title:
AIRCRAFT USING DUCTED FAN FOR LIFT
Document Type and Number:
WIPO Patent Application WO/2011/041991
Kind Code:
A3
Abstract:
An aircraft using ducted fan to create lifting force, containing control flaps (7) that produce at the bottom surface of the ring (4) surrounding the rotor (2), from a part of the air leaving the rotor (2), a wall jet held to the surface by the Coanda effect and flowing towards the outer perimeter of the ring (4). The bottom surface of the ring (4) is shaped in such a way that near the outer perimeter of the ring (4) the wall jet flows downwards to the ground. With a change of their position and/or shape of their surface with regard to the opposite surface of the ring (4), the control flaps (7) change the velocities and/or mass flow values of the wall jet in various places of the trailing edge (11) of the bottom surface of the ring (4). This way, changes of aerodynamic forces at different sides of the aircraft (1) are controlled and therefore its tilt and flight in the required direction.
Inventors:
JANDA ZDENEK (CZ)
Application Number:
PCT/CZ2010/000102
Publication Date:
July 14, 2011
Filing Date:
September 24, 2010
Export Citation:
Assignee:
JANDA ZDENEK (CZ)
International Classes:
B64C27/20; B64C21/08
Domestic Patent References:
| WO2005032939A1 | 2005-04-14 |
Foreign References:
| GB912087A | 1962-12-05 | |||
| DE29914928U1 | 2001-02-08 | |||
| US20040164203A1 | 2004-08-26 |
Attorney, Agent or Firm:
HAINZ, Miloslav et al. (Ruzicka & GuttmannVinohradska 37, Praha 2, CZ)
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