活塞式单级制冷压缩机是我国开发研制较早的制冷机,早在二十世纪五、六十年代就已有批量生产,至今是制冷机品种产量较大的一种。二十世纪六十年代,机械部颁布了中小型活塞式单级制冷压缩机型式与基本参数、技术条件、试验方式三项部标准,1981年颁布了全封闭活塞式制冷机部标准。迭经修订,在 Piston single-stage refrigeration compressor developed in our country earlier refrigerator, as early as the 1950s and 1960s have been mass production, so far a large variety of refrigerators yield a. In the 1960s, the ministry of machinery promulgated the three ministerial standards for the type and basic parameters of small and medium-sized piston single-stage refrigeration compressors, technical conditions and test methods. In 1981, the standard of fully enclosed piston refrigeration units was promulgated. Revised, at