THERMODYNAMIC SYSTEM PROVIDED WITH A PLURALITY OF COMPRESSORS

摘要

The invention relates to a thermodynamic system, including a circuit for circulating a refrigerant which comprises, in particular: a compression device including first and second compressors (7, 8), each of which includes a sealed chamber (9) provided with a low-pressure portion (11) containing a motor (12) and an oil pan (13) that is arranged in the base of the chamber, and a refrigerant-intake opening (15) leading into the low-pressure portion; a refrigerant-dispensing device (18) connecting an evaporator (5) to the intake opening (15) of the first compressor (7); an oil level equalizing line (21) placing the oil pans (13) of the first and second compressors in communication with each other; a connection device (22) placing the low-pressure portion (11) of the first compressor (7) in communication with the intake opening (15) of the second compressor (8); and a control means (28) arranged to control the starting and stopping of the first and second compressors according to four control modes.