Annular ducted lift fan VTOL aircraft
OwnerYun Jianginventor
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Abstract
The invention is an annular ducted lift fan system for a VTOL type aircraft. In detail, the invention comprises an annular duct, a lift fan set, engines, a central fuselage, a peripheral wing, and means for pneumatic coupling or mechanic coupling of engines and the lift fan set. The lift fan set is mounted in the annular duct and powered by the engines through pneumatic coupling or mechanic coupling. The annular duct is opened with the lift fan set working to provide high lift efficiency in VTOL mode and transition mode and is closed off to reduce drag in cruise mode.
Claims15
A VTOL aircraft with an annular ducted lift fan system comprising:
- an annular duct including curved inlet lips and a diffused outlet;
- an annular lift fan set;
- a central circular fuselage;
- a peripheral wing;
- engines;
- means for pneumatic coupling or mechanic coupling of said lift fan set and said engines;
- various configurations including circular, rhombic, triangular, etc.
An annular ducted lift fan system comprising:
- an annular duct including curved inlet lips and a diffused outlet;
- an annular lift fan set;
- engines;
- means for pneumatic coupling or mechanic coupling of said lift fan set and said engines;
Dependencies are inferred from the claim text.