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全苏冷冻机研究所和冷冻机厂试制了一批新系列的高速氟里昂全封闭式压缩机,在标准工作条件下,其额定制冷量为3～11千瓦。目前食品机械部生产的压缩机最大制冷量在同样条件下为1.5千瓦,这种新型压缩机的制冷量要大得多。新型压缩机的主要设计原则是:曲轴为垂直布置而电动机位于上部;圆筒罩壳不压紧,电动机由经转子与定子的气隙吸入的气体冷却;压出端有消音器;无活塞环。曾对新系列的ПГ及ПГ5压缩机母型进行了试验。
All-Soviet freezer Institute and the freezers trial production of a new batch of high-speed Freon full-enclosed compressor, under standard operating conditions, the rated cooling capacity of 3 to 11 kilowatts. At present, the maximum refrigeration capacity of compressors produced by the Food Machinery Department is 1.5 kilowatts under the same conditions, and the refrigeration capacity of this new compressor is much greater. The main design principles of the new compressor are: the crankshaft is vertically arranged and the motor is located at the upper part; the cylindrical shell is not compressed; the motor is cooled by the gas sucked in by the air gap between the rotor and the stator; the silencer is arranged at the extruding end; . The new series of ПГ and ПГ5 compressor prototypes were tested.