防雨计组件4020W35-2
一、名称
RAIN REPELLENT GAGE ASSEMBLY
防雨计组件
二、件号
4020W35-2
三、章节号
30-45-10
四、适用机型
A320
五、系统
30 ICE AND RAIN PROTECTION
防冰防雨
六、安装位置
the aft-left wall of the cockpit
驾驶舱的左后壁
七、部件原理
When you install a disposable can of rain repellent fluid on the unit, a pin (7) lets the fluid enter inthe rain repellent gage assembly. A seal located into the can and another one located on the coupling (1) prevent any leakage.
– The “RAIN REPELLENT” fluid, pressurized by the gas contained in the can, flows into the transparent bowl (3).
– When the red push-button of the drain valve (4) is pushed, the air contained in the bowl is expelled until the fluid flows out of the drain union (5).The fluid at this moment reaches its maximum level in the transparent bowl.
– A pressure gage (6) provides an accurate indication of the pressure level inside the unit.
– After several sprays of “RAIN REPELLENT” fluid, the level is lower in the transparent bowl. The surface of the fluid appears and the needle of the pressure gage enters the “REFILL” yellow section.
当您在装置上安装一次性防水液罐时，销（7）会使防雨液进入防雨计组件。位于罐内和接头（1）上密封件可防止泄漏。
-“RAIN REPELLENT”液体由罐中的气体加压，流入透明罐（3）。
–当按下排放阀（4）的红色按钮时，透明罐中的空气被排出，直到液体流出排放接头（5）。此时，流体在透明罐中达到最大液位。
-压力表（6）提供装置内部压力水平的准确指示。
-在多次喷洒“RAIN REPELLENT”液体后，透明罐中的液位较低。液面出现，压力表指针进入“REFILL”黄色区域。
八、工作参数
九、在飞机系统中的工作原理及互联
(a) The gage assembly forms the can receptacle. The can is mounted on the receptacle, valve downwards. The receptacle includes the pin provided for unseating of the sealing valve of the can.
防雨计组件形成罐体容器。罐子安装在容器上，阀门向下。包括用于使罐的密封阀脱开的销。
(b) A pressure gage indicates the pressure in the can and thereby the quantity of fluid in the can:
– green band: the pressure is sufficient,
– yellow band: the pressure is low; the can must be replaced.
压力表指示罐中的压力，从而指示罐中液体的量：
-绿色带：压力足够，
-黄色带：压力低；必须更换罐子。
(c) The fluid gage incorporates a 80 cubic centimeters transparent chamber from which the fluid level is visible. When the can is completely empty, the remaining nitrogen pressure and the fluid remaining in the gage are still sufficient for several flights before replacement of the can.
液位计包括一个80 cm³的透明罐子，从中可以看到液位。当罐子完全排空时，在更换罐子之前，剩余的氮气压力和表中剩余的液体仍然足以进行几次飞行。
(d) A purge pushbutton located on the can serves to purge the lines of the system when the can is replaced.
当更换防雨计组件时，防雨计组件上的清洗按钮用于清洗系统的管路。
The rain repellent gage assembly is a part of rain repellent system. It receives the pressurized can of rain repellent fluid. The equipment has a transparent bowl that contains a reserve of fluid. A drain valve allows to drain the circuit when the pressurized can is changed. A pressure gage indicates the pressure in the rain repellent circuit.
防雨计组件是防雨系统的一部分。它接收加压的防雨液罐。该设备有一个透明的罐，里面有一定量的液体。当更换加压罐时，排放阀允许使回路排空。压力表指示防雨回路中的压力。
The can contains 475 cubic centimeters of usable rain-repellent fluid. The system is pressurized with nitrogen; the nitrogen pressure in the can when full is 5.8 +0.7 -0.4 bar (84.1218 +10.1526 -5.8015 psi). A valve held closed under the load of internal pressure seals the can. A thin pin is provided for displacement of the valve.
排雨剂罐含有475 cm³的可用防雨液。系统采用氮气加压；满罐时罐中的氮气压力为5.4-6.5 bar。一个阀门在内部压力的作用下保持关闭，从而密封罐子。一个细销子用于阀门的位移。
十、系统介绍/拓展知识
排雨液系统
(1) 当飞机在空中遭遇大雨,雨刷不足以排雨时,使用该系统将能够改善风挡的透明度。
(2) 该系统能够向风挡喷洒一次或者几次特殊的防雨剂;该防雨剂能够增加水的表面张力。表面张力的增加会:
– 消除风挡上的水膜;水膜的厚度可以改变且会影响视线,
– 使水保持在点滴的形态(类似水银),
– 易于清除气流作用之下的水滴;水滴不会弄湿风挡表面。用空气净化喷嘴以防止阻塞。