Oil tank for unmanned aerial vehicle

Abstract

The invention relates to an oil tank for an unmanned aerial vehicle. An oil filling port is located in the upper-left portion of the oil tank. Air ports are located in the top of the oil tank and communicate with three-way adaptors and the atmosphere through air pipes. Oil delivery ports are located in the bottom of the oil tank and communicate with other oil tanks through oil delivery pipes. Oil supply ports are located in the bottom of the oil tank, and fuel oil is supplied to an engine through a fuel oil filter and a fuel oil pump. An oil return port is located in the upper-rear portion of the oil tank and used for recovering residual fuel oil of the engine. An oil quantity measurement port is located in the middle-upper portion of the oil tank. An oil discharging port is located in the middle-lower portion of the oil tank, and an oil discharging switch is mounted at the oil discharging port. Lifting lugs are located around the oil tank. According to the oil tank for the unmanned aerial vehicle, the weight reduction effect is remarkable, so that the unmanned aerial vehicle has a greater effective load under the same engine power condition, and it is of great importance for the usability of the unmanned aerial vehicle; and a combat unmanned aerial vehicle can carry more weapons or fuel oil, an agricultural unmanned aerial vehicle can carry more pesticides or seeds, and an aerial photographing and mapping unmanned aerial vehicle can carry more fuel oil.

Description

technical field [0001] The invention relates to the field of aerospace technology, in particular to a fuel tank for an unmanned aerial vehicle. Background technique [0002] Since the 1930s, drones have been developed and used for more than 90 years. After a long period of germination and brewing in the 20th century, UAVs ushered in a period of rapid growth in the early 21st century, and gradually expanded from the military field to the civilian field. Nowadays, civilian UAVs have been widely used in many fields such as emergency rescue, environmental detection, power line inspection, aerial surveying and mapping, package delivery, and agricultural plant protection. Marketsand Markets, the world's second largest market research and consulting company, believes that the global small UAV market will reach US$1.9 billion in 2020; market research firm ABI Research predicts that by 2019, the market size of small UAVs for commercial use will reach 51 billion U.S. dollars. Accord...

AI Technical Summary

Problems solved by technology

[0004] However, in the existing UAV fuel tanks, neither the integral fuel tank nor the split fuel tank can take into account the weight and sealing, the cost and the development cycle.

Although the integral fuel tank plays a role in weight reduction, its sealing performance is poor, it is prone to leakage, and it is difficult to detect the location of the leak, which seriously restricts the use and maintenance of the drone; the split fuel tank is heavy, especially the hard fuel tank. The weight has increased significantly. Although the traditional soft fuel tank has played a certain role in weight reduction, its manufacturing cycle is long, the installation and fixing are complicated, and the weight reduction effect is average.

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