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压缩空气在活塞式致冷机的气缸里膨胀后,因润滑油的污染而变脏。空气的去油净化是通过专门的冷空气过滤器来实现的。图示为过滤器的结构。它由壳体、顶盖和过滤芯子组成。空气从致冷机出来便进入过滤器壳体的底部,然后经过拉西哥环层、过滤器芯子的表面,最后从壳体顶部出来。过滤芯子是四根多孔的同心圆管子,在管子上都套装法兰绒或军大衣呢。过滤织物缝合后紧贴管子用金属丝扎紧。装有拉西哥环的吊筐用螺钉固定在过滤芯子的底部。
Compressed air in the piston cooler cylinder expansion, due to contamination of the oil dirty. Air to the oil purification is through a special cold air filter to achieve. The structure of the filter is shown. It consists of shell, top cover and filter core. Air exits the refrigerator and enters the bottom of the filter housing, then passes through the ring of Lacoste, the surface of the filter core, and finally exits the top of the housing. The filter cartridge is four porous concentric tubes, flannel or army coat in the tube suit it. Cloth the filter fabric close to the pipe with a wire tie. The basket with laccolith rings is screwed to the bottom of the filter cartridge.