Fuel cell hydrogen nozzle hybrid power system and unmanned aerial vehicle system using it

Abstract

The invention proposes a fuel cell hydrogen nozzle hybrid unmanned aerial vehicle, which relates to the field of aircraft. The invention aims to solve the requirement of both long-time cruising flight and short-time high-maneuverability flight of the unmanned aerial vehicle. The UAV includes UAV fuselage structure, flight control device, signal transmission device, loading compartment, aileron rudder surface, tail rudder surface and fuel cell hydrogen nozzle hybrid power system, when the UAV is in cruise state , the propulsion power required by the UAV is small, the hydrogen nozzle does not work, and the hydrogen enters the fuel cell stack to generate electricity to drive the electric propulsion. When the UAV needs to fly with high maneuverability, the high-pressure hydrogen is input into the ejector , the outside air is pumped into the ejector and mixed, the mixed gas is passed into the combustion chamber, ignited by the electric lighter and then sprayed out through the nozzle to provide a large amount of thrust for the drone. The invention meets the requirements of long-endurance cruising and short-time maneuvering flight of the unmanned aerial vehicle by combining the fuel cell and the hydrogen nozzle.

Description

technical field [0001] The invention relates to a fuel cell hydrogen nozzle hybrid power system and an unmanned aerial vehicle system using the same, belonging to the technical field of aircraft. Background technique [0002] Fuel cell electric propulsion aircraft has attracted people's attention as a clean and environmentally friendly electric propulsion method. The fuel cell system using hydrogen as the energy source has a higher energy density than the traditional lithium battery energy source, which can provide a longer battery life for electric aircraft, but the power density of the fuel cell power system is low, which cannot meet the high-power flight requirements of the aircraft. Therefore, people have adopted the method of forming a hybrid with other power sources to provide power for the UAV. At present, lithium batteries with high power density are usually used as auxiliary energy in fuel cell hybrid power systems, but this method needs to load a lithium battery w...

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the problem of both long-term cruising flight and short-time high-maneuverability flight of the UAV mentioned in the above-mentioned background technology, and the lack of mobility caused by the low power density of the fuel cell electric propulsion UAV power system To solve the problem, a fuel cell hydrogen nozzle hybrid power system and a UAV system using it are proposed. The fuel cell hydrogen nozzle is used to provide short-term high-power propulsion for the UAV, so that the UAV uses a simple The structure and light extra weight enable the ability to fly with high power

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