时间:2011-06-14 21:26来源:蓝天飞行翻译 作者:航空 点击:次
独立的 indenpendent 冷却组件 Cooling pack 调节,管理 regulate (1) the air conditioning system provides a conditioned air environment for the passengers and crew , heats the cargo compartment, cools the electronic equipment, and supplies air for the pressurization system. 空调系统为旅客和机组提供环境温度的控制,为客舱供热,为电子设备舱降温,还有为增压系统提供空气。 (2) Air is bled from the pneumatic manifold and conditioned by 2 separate and independent cooling packs. Air flow into the packs is regulated by the pack valves. 空气从增压主管道和空调中通过 2个隔离的,相互独立的冷却组件中被引入。空气流进组件中通过组件活门调节。 (3) Air from the pneumatic manifold is too warm and must be cooled. The pupose of 2 packs is to reduce engine bleed air temperature to the desired temperature. 从增压主管道中来的空气太热,需要降温。两个组件的作用就是将发动机引气温度降低到需要的温度。 (4) An air cycle machine is an integral unit of each cooling pack. The air cycle machine consists of a turbine wheel and a compressor wheel mounted on a common shaft. Air flowing through the air cycle machine drives the turbine, the turbine drives the compressor section. As the air leaves the turbine it expands greatly. This expansion can cause the
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