Series-parallel connection mixed oil way system for unmanned aerial vehicle

Abstract

The invention discloses a series-parallel connection mixed oil way system for an unmanned aerial vehicle. The series-parallel connection mixed oil way system comprises a first oil tank, a second oil tank, a third oil tank and a consumption oil tank; the middle of the second oil tank is located at the gravity center of the unmanned aerial vehicle; an air pipe is simultaneously used as an exhaust port and an air entraining pressurizing port; the tops of the first oil tank and the third oil tank are connected with the same air pipe; the air entraining supercharging pressure is the same; the bottom of the first oil tank communicates with the bottom of the third oil tank through a pipeline; the bottom of the first oil tank communicates with the top of the second oil tank through a pipeline; thebottom of the second oil tank communicates with the top of the consumption oil tank through a pipeline; the volume of gas pressed into the fuel oil system by air entraining and pressurizing is largerthan the oil pumping volume of the oil pump; the oil loading capacity of the first oil tank and the third oil tank accounts for a large proportion of the total amount of fuel oil. The problem that air cannot be exhausted in the refueling process of the unmanned aerial vehicle is solved; in the flying process of the unmanned aerial vehicle, the stability margin of the unmanned aerial vehicle is changed due to gravity center change; engine flameout caused by the fact that air is sucked into the engine when the unmanned aerial vehicle does various maneuvering actions is avoided.

Description

technical field [0001] The invention belongs to the field of oil supply systems for unmanned aerial vehicles, in particular to a series-parallel mixed oil circuit system for unmanned aerial vehicles. Background technique [0002] When refueling the UAV, there is a problem that the fuel tank cannot be completely filled, and the fuel sloshing inside the UAV causes the center of gravity of the UAV to be unstable, which affects the safety of the UAV launch. During the flight of the UAV, with the consumption of fuel, the center of gravity of the UAV is constantly changing, which affects the flight stability margin of the UAV. When the UAV is doing various maneuvers such as diving, climbing, half-rolling, barrel rolling maneuvers, and maneuvering turns, air may enter the engine and cause the engine to stall, which will affect the flight safety of the UAV. Contents of the invention [0003] The purpose of the present invention is to provide a series-parallel hybrid oil circuit s...

AI Technical Summary

Problems solved by technology

When the UAV is doing various maneuvers such as diving, climbing, half-rolling, barrel rolling maneuvers, maneuvering turns, etc., air enters the engine and causes the engine to stall, which affects the flight safety of the UAV.

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