从刹车系统污染综合治理角度出发,论述了飞机刹车控制系统中高精度电液伺服阀的工作原理、选用要求及污染度控制要求,提出了飞机刹车系统油液污染控制的方法和途径。通过在刹车系统、刹车机轮、刹车管路的设计、使用、维护等方面进行污染控制,能够有效避免飞机刹车系统在使用中由于污染问题导致着陆过程中出现空中带压、刹车失效现象。 From the perspective of comprehensive control of the braking system pollution, the working principle, selection requirements and pollution degree control requirements of the high precision electrohydraulic servo valve in the aircraft brake control system are discussed. The methods and ways of oil pollution control of the aircraft brake system are put forward. The pollution control in the design, use, maintenance and other aspects of brake system, brake wheel and brake pipeline can effectively avoid air pressure and brake failure during landing due to pollution problems during use of the aircraft brake system.