| 摘要 |
Refrigeration device (100) having a closed circuit (C) in which a flow rate (1) of coolant is circulating, said closed circuit comprising at least one condenser (102) and at least one main branch (M) provided with at least one reciprocating compressor (101) inside which a defined flow rate (1-X1;1-X1-X2) of said coolant enters, from said main branch, at a defined suction pressure (P1), of at least one evaporator (103) and at least one first expansion valve (104) that is arranged between said at least one condenser and said at least one evaporator, said closed circuit further comprising at least one first secondary economizer branch (105) for at least one first fraction of flow rate (XI) of said coolant (1), said at least one first secondary economizer branch (105) fluidically connecting said compressor (101) to a section (106) of said closed circuit (C) comprised between said condenser and said at least one first expansion valve, characterized in that said compressor comprises at least one first side inlet port (107) for the entrance of said at least one first fraction (XI) of coolant flow rate, said at least one first fraction of flow rate having an inlet pressure (P8) so that P8-P1 ≤4 bar. |
