Long-endurance hybrid power UAV (Unmanned Aerial Vehicle)

Abstract

The invention discloses a long-endurance hybrid power UAV (Unmanned Aerial Vehicle). The UAV comprises two propeller engines, double tail booms and a pair of wings, wherein the propeller engines are respectively and relatively arranged in the front or at the back of a UAV body; the double tail booms are arranged at the rear part of the UAV body and the pair of wings is arranged on the UAV body; the two propeller engines are a methanol engine and a motor and both are arranged on the axis of the UAV body. According to the UAV provided by the invention, by adopting a high mounted wing with high aspect ratio, double tail booms layout, and the power configuration that the methanol engine is behind the motor, the oil and electric hybrid power has the characteristics of long-endurance of an oil driven airplane and the reliability of an electric driven airplane; furthermore, the motor can ensure that the oil-driven airplane is capable of making a return voyage when an extinguishment-trouble is caused, so that the safety of the air-plane, surrounding buildings and personnel can be ensured, and the survival rate of the airplane can be improved; more powerful power can be provided when the motor and the methanol engine are operating at the same time, so that the maximum load of the UAV can be improved, and the take-off distance can be shortened, besides the requirements on a take-off site by the UAV can be reduced, therefore, the UAV can take a plurality of task equipment to implement tasks.

Description

technical field [0001] The present invention relates to a technology in the field of an oil-electric hybrid unmanned aerial vehicle, in particular to a long-endurance hybrid unmanned aerial vehicle. Background technique [0002] Most small UAVs are powered by lithium batteries, which have the disadvantages of short voyage time and short range; engines using gasoline, methanol and other fuels are less reliable than motors, and are prone to flameout, flammable and explosive after accidents, etc. . Existing small unmanned aerial vehicles generally use a single power system, mostly lithium batteries or internal combustion engines using gasoline, methanol and other fuels, and there are no unmanned aerial vehicles that use both lithium batteries and methanol. [0003] The two engines of a twin-engine aircraft are generally arranged on the wings. If one engine is turned off, the flight path will be deflected due to the unbalanced engine thrust, which will endanger flight safety. ...

AI Technical Summary

Problems solved by technology

And an extra engine will increase the weight of the UAV, and the corresponding control system and oil circuit will be more complicated, which will affect the flight time and load capacity of the UAV.

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