曝光台 注意防骗
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of the flight control, landing gear, and thrust reverser systems. System B
hydraulic power operates the following system:
Main wheel brakes
Right thrust reverser
Ailerons – power control unit and autopilot actuator.
Elevators – power control unit and autopilot actuator.
Elevator feel
Rudder
Outboard flight spoiler 2 and 7
Trailing edge flaps
Leading edge flaps and slats
Alternate landing gear retraction
Alternate nose wheel steering
液压B 系统提供小于3000PSI 的压力给飞行控制、起落架及反推装置
系统。液压B 系统为下列系统提供压力：
主轮刹车
右反推装置
副翼—动力控制组件及自动驾驶作动筒
升降舵—动力控制组件及自动驾驶作动筒
升降舵FEEL
方向舵
外侧飞行扰流板2#和7#
后缘襟翼
前缘襟翼和缝翼
备用起落架收起
备用前轮转弯
(6) System Bhydraulic pressoure is provided by two hydraulic pumps, an
EDP(engine driven pump) and an EMDP(electric motor driven pump).the
pumps are supplied with fluid from a reservoir pressurized with pneumatic
air from the ECS(environmental control system). Output of the pumps is
routed to a pressure module and from there to the using systems. Return
fluid from the using system is routed through a return filter module then to
the reservoir. Drain fluid from both pumps is routed through a heat
exchanger before going to the reservoir.
B 系统压力油两个液压泵、一个发动机驱动泵和一个电动马达泵来提
供。泵内装有从油箱来的液体，用环境控制系统的增压空气产生压力。
泵内输出的压力被送往压力组件并从这儿传给用户系统。从用户系统返
回的流体通过一个回油滤组件被送往油箱。泵中排出的流体通过一个热
交换器后被送往油箱。
(7) The standby system components are located in the main gear wheel
well,on the keel beam and the aft bulkhead. The standby pump is operated
when required to power the rudder, thrust reversers, or to extend the
leading edge devices. The pump can be turned on by either of three
guarded switches on the forward overhead panel(P5). In addition, the
pump automatically switches on and provides standby pressure to the
rudder whenever hydraulic systemA or Bis lost, the flaps are not up, the
airplane is either in the air or on the ground with wheel speed above 60
knots, and at least one flight control switch, systemA or B, is ON.
备用系统组件位于主轮舱，压力隔板后方龙骨上方。当需要操作方向
舵、反推装置或打开前缘设备时，备用泵开始工作。这个泵能够被头
顶（P5）面板前方的三个带保护罩的开关中的任一个打开。另外，无
论A 系统或B 系统哪一个失效时，这个泵将自动工作并为方向舵提
供备用压力，襟翼不会打开，飞机无论在空中或地面轮速都将大于60
节，并且至少有一个飞行控制开关，A 系统或B 系统是打开的。
(8)When the standby pump is turned on, pressurized fluid is delivered to two
motor-operated shutoff valves on the standby pressure module and to two
thrust reverser shuttlee valves. The motor operated shutoff valves which
control pressure to the leading edge devices and to the standby rudder
actrator are individually controlled by switches on the forward overhead
panel. The standby rudder shutoff valve is also opened when the standby
hydraulic pump is automatically turned on.
当备用泵打开时，压力被送往备用压力组件的两个马达控制的截流阀
和两个反推装置截流阀上。马达控制截流阀控制提供给前缘设备的压
力并通过前顶置面板分别控制备用方向舵作动筒。当备用液压泵自动
工作时，备用方向舵截流阀也同时打开。
LESSON 14 LANDING GEAR 起落架
一、单词
主起落架Main gear 前起落架Nose gear 梁Spar
防滑的Antiskid 无效的Inoperative 自动刹车Autobrake
解除预位Disarm 使动作Actuate 借助于… By means of
减压Depressurize 电磁线圈Solenoid 限制Restrict
相应的Respective 移动，变换Transit 一致Agree
充当Serve as 形态Configuration 在…情况下In case of
故障Malfunction 减震支柱Shock strut 缓冲Absorb
碰撞Inpact 冲撞Shock 振动Vibration
滑行Taxi 整流罩Fairing 机构Mechanism
保证Assure 阻力杆Drag brace 扭力臂Torsion link
圆筒Cylinder 轴颈销钉Trunnion pin 稳定性Stability
牵引tow 环Lug 横向螺栓crossbolt
牵引杆tow bar 碰撞Bump 注入Charge
氮气Nitrogen 折迭Fold 环collar
转弯力矩Turning moment 手轮Handwheel 脚蹬pedal
二、TEXT
(1) the landing gear consists of two main gear and a nose gear. The main gear
are located inboard of each engine, aft of the rear wing spar. The nose gear
is located below the aft bulkhead of the flight compartment. Braking is
provided by four brake assemblies, one mounted on each main gear wheel.
Landing gear control and indication components located in the flight
compartment include: the landing gear selector lever and indication lights,
manual extension handles, parking brake lever and indicator, nose gear
steering control wheel, antiskid control switch and inoperative indicator,
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航空工程英语基础（中英文对照）(90)
