Tiltrotor controlled by double-propeller vertical duct

A dual-propeller and tilt-rotor technology, which is applied to rotorcraft, aircraft, motor vehicles, etc., can solve the problems of short control force arm, complex control mode, unfavorable safety and reliability of the structure and control mode of tilt-rotor aircraft, etc. problem, to achieve the effect of reducing the size of the duct and reducing the flight resistance
CN101643116AInactive Publication Date: 2010-02-10BEIHANG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
BEIHANG UNIV
Publication Date
2010-02-10
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a tiltrotor controlled by a double-propeller vertical duct. The tiltrotor, using the design of parallel twin-rotor and conventional aerodynamic configuration, consists of a fuselage, straight wings, rotors, a nacelle, an aileron, a vertical empennage, a rudder, an elevator, a horizontal empennage, a duct end cover, a vertical duct, an undercarriage, a power and decelerationsystem, a propeller power input shaft, a lower propeller, an upper propeller, louver-type slipstream sheets, a propeller gearing and collective-pitch controlling device, a propeller gear box supporting structure, a duct end cover driving device, a duct end cover motion slide rail and a slipstream sheet controlling device. Compared with the cyclic pitch control mode, the tiltrotor of the inventionsimplifies the operations during the vertical flight and the flight conversion and improves the reliability by using the structure of the double-propeller vertical duct to control the vertical flightand the conversion of the flight mode, and the tiltrotor has the advantages of long control force arm, high control efficiency and simple structure. Therefore, the tiltrotor constitutes a novel aircraft with significant development potential and promising future.
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Description

(1) Technical field

[0001] The invention relates to a tilt-rotor aircraft, in particular to a tilt-rotor aircraft controlled by a double-propeller vertical duct, and belongs to the technical field of aviation vehicle design. (2) Background technology

[0002] A tiltrotor aircraft combines features of a helicopter and a fixed-wing aircraft. Compared with fixed-wing aircraft, this type of aircraft can take off and land vertically, without relying on the airport runway, and can achieve hovering and low-speed forward flight; compared with traditional helicopters, tilt-rotor aircraft have greater cruising speed and range , the lift generated by the wings in the cruising process is more economical than the helicopter, so this kind of aircraft has been widely concerned since its birth. The earliest and most systematic research on tilt rotor aircraft is the United States. After decades of research, demonstration and testing, the United States has developed the V22, a representative...

Claims

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