Multi-rotor aircraft driven by duct lift fans with diversion helms

Abstract

The invention discloses a multi-rotor aircraft driven by duct lift fans with diversion helms. The multi-rotor aircraft comprises the multiple duct lift fans with diversion helms, and an aircraft fuselage, wherein the aircraft fuselage comprises a frame, a landing gear, a power module, a flight control module , a load cabin and other function modules; the duct lift fans with the diversion helms are mounted on the aircraft fuselage and mainly consist of propellers, propeller driving units, the diversion helms, diversion helm driving units, ducts and the like, and the ducts are arranged at the peripheries of the propellers and used for improving the efficiency of the propellers, protecting the propellers and reducing the noise of the propellers; the propellers are driven by the propeller driving units; and the diversion helms driven by the diversion helm driving units are arranged on the air inlet sides or the air outlet sides of the duct lift fans.

Description

Technical field [0001] The invention relates to a multi-rotor aircraft, which is suitable for multi-purpose flight such as manned, loaded, monitored, and detected. Background technique [0002] Existing multi-rotor aircrafts rely on groups of mutually positive and negative open propellers to rotate in opposite directions to offset the spin moment generated by the propellers and obtain lift. The disadvantages are: [0003] 1. During the flight, in order to maintain the balance of the spin torque of each propeller, the flight control system of the multi-rotor aircraft needs to change the speed of each propeller frequently. This frequent change of the speed of the propeller will reduce the working efficiency of the whole aircraft. [0004] 2. During the flight, the flight control system of the multi-rotor aircraft adjusts the lift force of each propeller by adjusting the relative speed between the propellers, and overcomes the spin torque of each propeller and maintains a balan...

AI Technical Summary

Problems solved by technology

[0005] 3. During the flight, in order to ensure a stable flight, it is necessary to ensure that the center of gravity of the multi-rotor aircraft is fixed, and the center of gravity of the multi-rotor aircraft needs to coincide with the structural center as much as possible, which limits the application of the multi-rotor aircraft

[0006] 4. During the flight, when encountering a large wind force, the aircraft needs to tilt at a large angle, and the lift generated by each propeller and the combined force of the aircraft's own gravity are used to balance the external disturbance wind force. Poor wind capacity, low safety factor

[0007] 5. Open propellers still face problems such as low efficiency, high noise, and poor safety

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