有关737方向舵减压器的问题

icelee · 发表于 2007-12-10 16:14:37

求助 737方向舵减压器是怎么工作的?还有它与Y/D之间的联系? 谢谢

icelee · 发表于 2007-12-12 04:03:07

Rudder Pressure Reducer System
The yaw damper coupler provides control and monitoring of the main rudder PCU pressure reducer (RPR) system. The yaw damper coupler provides control signals to the RPR solenoid, provides pressure sensor excitation, and receives signals from the pressure sensor to measure the A system hydraulic pressure to the main rudder PCU. The yaw damper coupler interfaces to radio altimeter 1 and radio altimeter 2 to determine when the airplane transitions above 1,000 feet and below 700 feet to activate and deactivate the RPR solenoid. The yaw damper coupler interfaces to the flight control system B pressure switch and deactivates the rudder pressure reducer solenoid when the B hydraulic system is depressurized. The yaw damper coupler interfaces to the flight control system A low pressure light and provides illumination when the A system pressure to the main rudder PCU is below 500 psi or when full pressure is commanded to the RPR and system pressure is below 2,200 psi.
以上是我从73C的AMM手册上拷贝下来的,具体也看不懂啥意思.有哪位大虾解释下 ,谢谢拉!!

zouqingkai · 发表于 2007-12-13 16:16:13

你求助的是:有关737方向舵减压器的问题。从原理上分析减压器的作用是控制到方向舵PCU的压力，防止PCU在工作中动作过大。但从B737-3/4/500飞机培训手册上是找不到减压器这个部件。

加菲猫44 · 发表于 2015-1-11 20:28:18

在高度1000英尺后将A系统压力从3000PSI减小到1000，高度下降到700时恢复

于 2015-01-11 20:29:48 连续回帖自动追加:
或者B系统低压或者左右发动机NI相差百分之45时，恢复正常

于 2015-01-11 20:30:12 连续回帖自动追加:
或者B系统低压或者左右发动机NI相差百分之45时，恢复正常

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