Aircraft with centrifugal fan capable of vertically taking off and landing
Patent Information
- Authority / Receiving Office
- CN Β· China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ηζ°δΊ
- Publication Date
- 2007-04-11
- Estimated Expiration
- Not applicable Β· inactive patent
Smart Images
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Abstract
Description
technical field
[0001] The invention relates to a vertical take-off and landing aircraft with a centrifugal fan, which is suitable for the aviation field. Background technique
[0002] Current aircraft, especially helicopters, use axial flow fans, i.e. rotors, to provide lift. Axial flow fans have a low power factor, which only reaches about 40% of their effective power, poor flight performance, and large rotor diameters; If the rotating speed is too high, a vacuum will be generated at the tip of the wing, causing its efficiency to drop sharply; as a rotor for a helicopter, a complex mechanism is required to control the movement of the rotor, which has high cost and low reliability; because the rotor can only be set On the top of the fuselage, the ejection life-saving device cannot be installed. In case of emergency, the living space of the crew is small, and at the same time, it is also greatly affected by the external weather conditions. With the expansion of the use of h...