六、Hydraulics液压？

2 main systems (A & B) and a standby center system provide pressurized hydraulic fluid (3,000 psi) to power all primary flight controls, flaps, spoilers, landing gear, nose wheel steering, brakes, thrust reversers, and autopilot.

液压系统也是由两个主系统A和B组成，也有一个备用系统，向所有飞机飞行控制系统提供大概3000psi的液压动力。

Each system has a fluid reservoir located in its associated wheel well. The fluid is pressurized by its associated engine driven hydraulic pump, which is backed up by its electric motor driven pump. Anytime an engine pump is not providing adequate pressure (ie: engine not running), its

electric motor can pressurize the system completely.

每个系统在其相关的轮舱内都有一个储液罐。 流体由与其关联的发动机驱动的液压泵加压，而其由电动机驱动的泵作为后备。 每当发动机泵未提供足够的压力（即：发动机未运行）时，其电动机可以完全给系统加压。

If either main system fails, the other main system will power all primary flight controls.

如果任一主系统发生故障，则另一主系统将为所有主要飞行控制系统提供动力。

The center system is pressurized by an electric motor driven pump only. The center system is primarily used as a standby system if both main systems fail.

备用系统仅由电动泵加压。 如果两个主系统都发生故障，则备用系统主要用作备用系统

七、Flight Controls

All flight controls are hydraulically powered.

The primary flight controls are the ailerons, elevator, and rudder.

All primary flight controls are powered by both main hydraulic systems, A & B. (Either

hydraulic system can power all primary flight controls).

Ailerons provide roll, elevator provides pitch, and the rudder provides yaw control.

The secondary flight controls are the spoilers, trailing edge flaps, leading edge slats, and horizontal stabilizer.

所有的飞行控制都是液压驱动的。

主要的飞行控制装置是副翼，升降舵和方向舵。

所有主要飞行控制装置均由两个主要液压系统A和B提供动力。

所有的液压系统都可为所有主要飞行控制提供动力）。

副翼提供横滚，升降舵提供俯仰，方向舵提供偏航控制。

辅助飞行控制装置是扰流板，后缘襟翼，前缘缝翼和水平配平装置。

In flight, the spoilers are used

1) to assist the ailerons for roll control (roll assist = one side at a time pitches up slightly to kill some lift), and

2) to allow the aircraft to descend quickly without gaining airspeed (speedbrakes = some panels on both sides simultaneously pitch up partially to kill lift and create drag).

在飞行中，使用了扰流板

1）协助副翼进行横滚控制，并且

2）允许飞机快速下降而不增加空速

Upon landing, the spoilers are used to kill all lift to assist in landing and braking (speedbrakes = all panels on both sides simultaneously pitch up all the way to kill lift which puts all the weight down on the wheelsfor more effective braking).

Trailing edge flaps and leading edge slats operate simultaneously to

1. extend to provide extra lift during slow flight (increases the camber of the wing for takeoff and landing, plus extends farther during landing to also increase drag), and

2. retract during all other phases of flight to form an efficient, high speed wing.

降落时，扰流板可用于去除所有升力，以协助降落和制动（速度制动=两侧的所有面板同时向上倾斜以消除升力，这将所有重量都放在了车轮上，从而实现了更有效的制动）。

后缘襟翼和前缘缝翼可同时运行以

1.延伸以在慢速飞行中提供额外的升力（增加机翼的外倾角以进行起飞和降落，加上在降落过程中延伸得更远以增加阻力），以及

2.在所有其他飞行阶段缩回，以形成高效的高速的机翼。

Flaps and slats are normally powered by B hydraulic system. If B system fails, trailing edge flaps can be extended electrically, and the leading edge slats can be extended using the center standby hydraulic system.

襟翼和缝翼通常由B液压系统提供动力。如果B系统发生故障，则可以使用备用液压系统电动放出后缘襟翼，并可以放出前缘缝翼。

The horizontal stabilizer is used to trim out the pitch control forces, relieving the force required on the elevator as airspeed changes.

水平配平用于调整俯仰控制力，以减轻空速变化时升降舵上所需的力。

八、Engines

As air is drawn through the engine, the Fan, then the N1 compressor section, then the N2 compressor section compress the air into an extremely high pressure flow.

空气从发动机吸入，经过风扇，然后是N1压缩机部分，然后是N2压缩机部分将空气压缩成极高的压力流。

High pressure, high temperature bleed air is tapped off the end of the N2 compressor section to supply air conditioning, pressurization, and anti-ice.

从N2压缩机部分的末端排出高压高温引气，以提供空调，增压和防冰功能。

The remaining air now enters the combustion section where fuel is injected into the air flow and ignited.

剩余的空气现在进入燃烧区，在燃烧区将燃料喷射到空气流中并点燃。

As the air flow is superheated, it expands to an ultra high pressure flow before entering the turbine sections.

由于空气流过热，在进入涡轮机部分之前，空气流膨胀成超高压流。

The ultra high pressure, superheated air flow now expands through the turbine section before exhausting out the back of the engine. The turbines drive a shaft connected to the fan and compressor sections, which drives them to bring in more air. This shaft also drives an accessory gearbox which drives the generator, the hydraulic pump, oil pumps, etc.

现在，超高压，过热的空气流通过涡轮机部分膨胀，然后从发动机后部排出。涡轮驱动一个与风扇和压缩机部分相连的轴，该轴带动它们吸入更多的空气。该轴还驱动附件齿轮箱，该附件齿轮箱驱动发电机，液压泵，油泵等。

The speed of the turbines, and thus the speed of the engine and the amount of thrust coming out the back of the engine, is controlled by how much fuel is injected into the combustion section.

涡轮的速度，进而是发动机的速度，以及从发动机后部出来的推力的大小，是由向燃烧部分喷射多少燃料来控制的。

Thrust Reversers are hydraulically actuated cowling sleeves that when activated on the ground, slide into place and redirect the Fan Bypass exhaust to flow more out the side than the rear of the cowling, thus directing the thrust more forward and helping slow the aircraft on landing.

反推是液压驱动的整流罩套筒，当在地面上启动时，开始滑入到位，并使排气重新定向，从而比整流罩后部更向侧面流出，从而将推力向前引导，并帮助飞机降落。

3 fuel tanks,

Electrically driven fuel pumps provide fuel to the supply lines.

Through the fuel supply lines, any of the 3 fuel tanks can provide fuel to either engine or the APU.

The center tank pumps operate at a higher pressure than the main tank pumps, thus the center tank fuel is consumed prior to the main tank fuel. This serves to maintain a proper weight and

balance schedule (CG). ·

If all electricity fails, fuel still suction feeds from the main tanks to the engines.

3个油箱，主油箱和中央油箱

电动燃油泵将燃油提供给供应管线。

通过燃油供应管线，三个燃油箱中的任何一个都可以为发动机或APU提供燃油。

中央油箱泵的压力高于主油箱泵的压力，因此中央油箱的燃油先于主油箱的燃油被消耗。 这样可以保持适当的重量，并且保持平衡。 ·

如果所有电力中断，燃油仍会从主油箱吸进发动机。