The invention provides a flying wing unmanned aerial vehicle fuel tank ventilation pressurization system entraining air through an engine and a using method thereof, the flying wing unmanned aerial vehicle fuel tank ventilation pressurization system entraining air through the engine comprises a main ventilation pipeline, an inter-fuel tank ventilation pipeline, a pressure reducer, an anti-vacuum valve, a safety valve and other assemblies, a fuel tank ventilation system adopts a closed system, and a pressurization air source comes from an engine air compressor. The fuel tank ventilation and pressurization system is composed of two parts of ventilation pipelines, wherein the first part of main ventilation pipeline is connected with an engine gas source and used for normal ventilation and pressurization of a fuel tank; and the second part is a ventilation pipeline between the oil tanks and is used for connecting gas-phase spaces of all the oil tanks, and large pressure difference between the oil tanks is avoided. The ventilation pressurization system provided by the invention has the functions of keeping a certain pressurization value of the oil tank relative to the atmospheric environment, reducing the evaporation loss of fuel oil, keeping the pressure difference between the oil tank and the outside in an allowable range, preventing the oil tank structure from being damaged due to overlarge pressure difference, and ensuring the normal work of a fuel oil system.
本发明提供了一种通过发动机引气的飞翼无人机油箱通气增压系统及其使用方法,包含主通气管路、油箱间通气管路、减压器、防真空阀、安全阀等组件,燃油箱通气系统采用闭式系统,增压气源来自发动机压气机。油箱通气增压系统由2部分通气管路组成:第一部分主通气管路(发动机气源与之相连)用于燃油箱的正常通气与增压;第二部分为油箱间通气管路,用于连接各油箱气相空间,避免出现较大油箱间压差。本发明提供得通气增压系统的功能是保持油箱相对大气环境有一定的增压值降低燃油蒸发损失,维持油箱与外界压差在允许范围内,防止油箱结构因过大压差而被破坏,并保证燃油系统的正常工作。
Flying wing unmanned aerial vehicle fuel tank ventilation pressurization system and using method thereof
一种飞翼无人机油箱通气增压系统及其使用方法
06.08.2024
Patent
Elektronische Ressource
Chinesisch
IPC: | B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT |
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