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Aircraft with multiple rotor wings combined with fixed wings

A fixed-wing and aircraft technology, applied in the field of aviation aircraft, can solve the problems of large air resistance of the rotor, long range and cruising time, poor endurance, etc., and achieve the effect of improving flight time, aircraft flexibility, and improving stability

Inactive Publication Date: 2019-01-22
FOSHAN SHENFENG AVIATION SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, fixed-wing aircraft that are common in the aviation field mainly rely on the wings to generate lift to balance the weight of the aircraft, and the power system is mainly used to overcome the flight resistance of the aircraft. Therefore, the power far less than the weight of the aircraft can make the fixed-wing aircraft lift off the ground. Its flight speed is relatively fast, and the range and cruise time are also long, but the take-off and landing distance is long, requiring high-quality runways, which seriously affects and hinders the application of fixed-wing aircraft in remote areas without dedicated airports
The common rotorcraft can solve the problem of vertical take-off and landing in a narrow space. When the aircraft needs to be tilted, as long as the rotational speed of the propellers in the flight direction is reduced, the rotational speed of the propellers in the symmetrical position can be increased to fly in the specified direction through the lift difference. , but the efficiency of the rotor directly connected to the power system is far inferior to that of the fixed-wing aircraft, so the power consumption is large and the endurance is poor. Therefore, people have begun to develop an aircraft that has the advantages of both fixed-wing aircraft and rotor aircraft.
[0003] However, most aircraft with rotor and fixed wing have a tilting structure. During the tilting process, the high-speed rotating blades will generate large force components in different directions with the aircraft in level flight, resulting in unstable attitude of the aircraft. When many aircrafts are in level flight, the motors of the rotors stop and do not tilt, so the rotors that stop in level flight will generate greater air resistance, which will affect the flight range and flight speed

Method used

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  • Aircraft with multiple rotor wings combined with fixed wings
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Examples

Experimental program
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Effect test

Embodiment 1

[0037] When the aircraft is vertically lifted, it is in the rotor flight mode. The flight control system controls the linkage mechanism through the steering gear to tilt the tilting base, so that the front row of rotors is located on the horizontal plane above the fixed wing, and the rear row of rotors is located below the fixed wing. At this time, the rotor motor is driven, and the front rotors, rear rotors and wingtip rotors can rotate simultaneously to provide lift for the aircraft. The multi-rotors provide lift to make the aircraft quickly rise to the required height, and keep the rotor speed constant to maintain the aircraft. Hovering and high stability, the vertical lift of the aircraft can be applied to operations in relatively narrow spaces.

Embodiment 2

[0039] When the aircraft is sailing, the flight mode can be combined with the rotor and the fixed wing at this time. The flight control system controls the linkage mechanism through the steering gear to tilt the tilting base, so that the front row of rotors tilts toward the nose of the fuselage, and the rotation plane is vertical. On the fixed-wing plane, the rear rotors tilt toward the tail of the fuselage, the rotation plane is perpendicular to the horizontal plane of the fixed wing, and the direction of the wingtip rotor remains unchanged. At this time, it is the combined flight mode of the rotor and the fixed wing. The front rotor and the rear rotor are The aircraft provides the power to fly forward. At the same time, the wingtip rotors on both sides of the fixed wing can clear the wingtip circulation of the aircraft during flight and reduce its flight resistance. The flight speed of the aircraft has been improved, and it can reach the designated place quickly.

[0040] Wh...

Embodiment 3

[0043] When the aircraft lands, it is in the rotor flight mode at this time. The flight control system controls the linkage mechanism through the steering gear to tilt the tilting base, so that the front rotors return to the horizontal plane above the fixed wings, and the rear rotors return to the level below the fixed wings. On the horizontal plane, the rotor provides lift at this time, and the aircraft can hover, and then reduce the rotation speed of the rotor motor, so that the aircraft can land vertically.

[0044] An aircraft combining multi-rotors and fixed wings combines the advantages of vertical take-off and landing of rotorcraft and high flight efficiency of fixed-wing aircraft, so that the take-off site of the aircraft is no longer restricted, and at the same time, the flight is more stable and the voyage distance is significantly increased. The rotor tilt mechanism and the recovery space for the rotor and tilt mechanism are added to the aircraft, so that the rotor o...

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Abstract

The invention discloses an aircraft with multiple rotor wings combined with fixed wings. The aircraft comprises a fuselage, a fixed wing and a rotor wing, wherein the fixed wing is provided with a front rotor wing, a rear rotor wing and a tip rotor wing. The front row rotor wing and the rear row rotor wing are respectively connected with the fixed wing through the corresponding tilting mechanism arranged on the fixed wing, and the tilting angle of the corresponding front row rotor wing or the rear row rotor wing is changed through the controlled tilting mechanism, so that the vertical take-offand landing of the aircraft, the acceleration of flight, the rapid attitude adjustment and the like can be realized. The wing tip rotor wing installed at the fixed wing tip not only provides lift, but also eliminates the wing tip circulation and improves flight efficiency. A recovery space is arranged inside the fixed wing corresponding to the tilting mechanism position, and the tilting mechanismcorresponding to the front row rotor wing, the rear row rotor wing and the two kinds of rotor wings can be folded and stored into the recovery space, so that the aircraft can fly the fixed wing, andthe rotor stops when the fast flight is not required, and the air resistance is generated to affect the flight.

Description

technical field [0001] The invention relates to the technical field of aviation aircraft, and more specifically relates to an aircraft combining multi-rotors and fixed wings. Background technique [0002] At present, fixed-wing aircraft that are common in the aviation field mainly rely on the wings to generate lift to balance the weight of the aircraft, and the power system is mainly used to overcome the flight resistance of the aircraft. Therefore, the power far less than the weight of the aircraft can make the fixed-wing aircraft lift off the ground. Its flying speed is relatively fast, and its range and cruising time are also long, but its take-off and landing distance is long, requiring high-quality runways, which seriously affects and hinders the application of fixed-wing aircraft in remote areas without dedicated airports. The common rotorcraft can solve the problem of vertical take-off and landing in a narrow space. When the aircraft needs to be tilted, as long as the...

Claims

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Application Information

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IPC IPC(8): B64C27/28B64C27/30B64D27/02
CPCB64C27/28B64C27/30B64D27/02B64D27/026
Inventor 罗哲远王志成
Owner FOSHAN SHENFENG AVIATION SCI & TECH