图1为美国Dunham-Bush公司近年研制出的全封闭螺杆冷水机组的外形,图2为全封闭螺杆制冷压缩机解剖(图中自左下角箭头起按顺时方向),其主要结构为:卸载活塞,滑阀,转子,吸入侧主轴承,油分离板,排出口,封闭电动机机身,吸入辅助阀,吸入口,油过滤器。这种全封闭螺杆制冷压缩机转速较 Figure 1 for the United States Dunham-Bush Company recently developed a fully enclosed screw chillers outline, Figure 2 is a fully enclosed screw refrigeration compressor anatomy (the figure from the bottom left corner of the arrow in time), its main structure: unloading Piston, slide valve, rotor, suction side main bearing, oil separation plate, discharge port, closed motor body, suction auxiliary valve, suction port, oil filter. This fully enclosed screw refrigeration compressor speed