B737NG液压系统介绍（PDF）

江雪一叶舟 · 发表于 2010-7-3 11:42:18

Introduction
The airplane has three hydraulic systems: A, B and standby. The standby system
is used if system A and/or B pressure is lost. The hydraulic systems power the
following airplane systems:
• flight controls
• leading edge flaps and slats
• trailing edge flaps
• landing gear
• wheel brakes
• nose wheel steering
• thrust reversers
• autopilots

Either A or B hydraulic system can power all flight controls with no decrease in
airplane controllability.
Each hydraulic system has a fluid reservoir located in the main wheel well area.
System A and B reservoirs are pressurized by bleed air. The standby system
reservoir is connected to the system B reservoir for pressurization and servicing.
Pressurization of all reservoirs ensures positive fluid flow to all hydraulic pumps.
Hydraulic Power Distribution Schematic