The invention belongs to the field of aircraft design, and relates to an active thermal control distributed electro-hydraulic servo steering engine. The active thermal control distributed electro-hydraulic servo steering engine comprises a servo motor, a double-rotation-direction hydraulic pump, an overflow valve, a control surface, an actuator cylinder, an evaporator, a compressor, an expansion valve and a condenser. A distributed electro-hydraulic servo steering engine is combined with an evaporation circulation active cooling system, and it is guaranteed that the temperature of key elements such as a hydraulic pump and an actuator cylinder is within a reasonable working range by conducting active cooling on the key elements. Heat is brought out of the equipment through refrigerant evaporation circulation and taken away through cold source fluid, it is guaranteed that the internal temperature of the steering engine is controllable, and the external heat exchange efficiency is improved. A hydraulic pump and actuator cylinder integrated heat exchange device is provided, a refrigerant flow channel is arranged in a hydraulic element shell, and normal work of a hydraulic system is not affected while efficient heat exchange is achieved. A heat insulation layer is arranged between a hydraulic system and a cooling system condenser, heat is brought away from the hydraulic system in an active cooling mode, and heat is prevented from returning in a heat conduction mode again through the heat insulation layer.
本发明属于飞机设计领域,涉及一种主动热控分布式电液伺服舵机。包括伺服电机、双旋向液压泵、溢流阀、舵面、作动筒、蒸发器、压缩机、膨胀阀和冷凝器;本发明将分布式电液伺服舵机与蒸发循环主动冷却系统结合,通过对液压泵、作动筒等关键元件进行主动冷却保证其温度处于合理工作范围。制冷剂蒸发循环将热量带到设备外,并通过冷源流体将热量带走,保证舵机内部温度可控,并提高外部换热的效率。提出了液压泵、作动筒集成式换热装置,将制冷剂流道布置在液压元件壳体内,高效换热的同时不影响液压系统正常工作。液压系统和冷却系统冷凝器之间布置隔热层,通过主动冷却方式将热量带离液压系统,并通过隔热层避免热量再次通过热传导的方式返回。
Active thermal control distributed electro-hydraulic servo steering engine
一种主动热控分布式电液伺服舵机
2021-04-27
Patent
Electronic Resource
Chinese
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