FIELD: refrigerating equipment.
SUBSTANCE: invention relates to compression refrigerating machines. Refrigerating machine comprises compressor 1 with suction and discharge chambers 3 and 6 and heat exchanger 11 connected to consumer, combined into single closed refrigerating cycle. Inner cavity of heat exchanger 11 is interconnected with chamber 3 and chamber 6 equipped with gas-distributing device for injection 7. Compressor 1 is made in the form of low-speed piston two-chamber compressor with preliminary compression of cooling agent in first chamber 2 and additional compression of cooling agent in the second intensively cooled chamber 5 with simultaneous process of condensation. Chamber 5 is smaller than chamber 2. Chamber 6 is interconnected with inner cavity of heat exchanger 11 through connecting cooled capillary 9. Device 7 is self-acting.
EFFECT: invention is aimed at simplifying the design and increasing the efficiency of the compressor.
1 cl, 1 dwg
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