A composite tiltrotor unmanned aerial vehicle with propeller and ducted fan and its flight mode

A technology of unmanned aerial vehicle and ducted fan, which is applied in the field of propeller and ducted fan composite tilt-rotor unmanned aerial vehicle and flight mode, can solve the problems of high-efficiency take-off and landing, high-efficiency cruise, etc., and reduce the cruise performance. Energy consumption, low manufacturing cost, and improved battery life and load capacity

Active Publication Date: 2022-01-21
湖北航天飞行器研究所
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  • Description
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  • Application Information

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Problems solved by technology

[0005] In view of the fact that conventional tilt-rotor UAVs cannot solve the problems of efficient take-off and landing and efficient cruise at the same time, this patent provides a propeller and ducted fan composite tilt-rotor unmanned aerial vehicle and flight mode, which can realize efficient take-off and landing and cruise flight

Method used

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  • A composite tiltrotor unmanned aerial vehicle with propeller and ducted fan and its flight mode
  • A composite tiltrotor unmanned aerial vehicle with propeller and ducted fan and its flight mode
  • A composite tiltrotor unmanned aerial vehicle with propeller and ducted fan and its flight mode

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Embodiment Construction

[0028] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0029] The embodiment of the present invention is as image 3 as shown, image 3 For the three flight states of vertical takeoff and landing, tilt and forward flight of the aircraft, three flight modes of rotor mode, transition mode and fixed wing mode are adopted respectively. The specific process is as follows: firstly, the aircraft is placed on the level ground, the front and rear ...

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Abstract

The invention discloses a propeller and ducted fan composite tilt-rotor unmanned aerial vehicle and a flight mode. The scheme adopts a tandem layout, which is divided into front and rear wings; more than 6 ducted fans and four propellers are installed on the front and rear wings. The front and rear wings are fixed, and the propeller can be tilted horizontally and vertically through the tilting mechanism. The tilting mechanism only tilts the propeller, which is designed with a streamlined shape and folded blades, and the tail end of the propeller can be used as a landing gear. During vertical take-off and landing or hovering, the ducted fan does not work, the tilting mechanism makes the propeller tilt to the vertical direction, and the propeller overcomes the gravity to achieve hanging or hovering; when cruising, the tilting mechanism makes the propeller turn to the horizontal direction, The folded blades and streamlined shape achieve drag reduction, and the ducted fan greatly increases the lift-to-drag ratio of the wing under the boundary layer suction effect, reduces cruise power consumption, and thus improves the endurance and load capacity of the aircraft.

Description

technical field [0001] The invention belongs to the general technical field of unmanned aerial vehicles, and in particular relates to a propeller and ducted fan composite tiltrotor unmanned aerial vehicle and its flight mode. Background technique [0002] Vertical take-off and landing aircraft are widely used because of their low requirements for take-off and landing conditions. From a military point of view, vertical take-off and landing aircraft can perform flight missions under special conditions such as aircraft carriers, small islands, reefs, mountains and deep forests. From a civilian point of view, vertical take-off and landing aircraft has great application space in public security monitoring, earthquake relief, and urban air traffic for safety. [0003] Although helicopters and multi-rotor aircraft can achieve vertical take-off and landing, due to the absence of fixed-wing and other high-lift devices, their own gravity is completely overcome by the power system dur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64C27/22B64C27/52B64C19/00
CPCB64C27/22B64C27/52B64C19/00B64U10/00B64U2201/00
Inventor 刘青黄晓龙李康伟许凯通张达张华君周子鸣黄飞
Owner 湖北航天飞行器研究所
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