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1. 发明申请

WO2023042051A1 DEVICE FOR REGULATING THE PRESSURE AND/OR TEMPERATURE OF THE REFRIGERANT FLUID ENTERING A COMPRESSOR OF A REFRIGERATION APPARATUS, RESPECTIVE REFRIGERATION APPARATUS AND METHOD FOR OPERATING SAID REGULATION DEVICE 审中-公开
公开(公告)号：WO2023042051A1
公开(公告)日：2023-03-23
申请号：PCT/IB2022/058552
申请日：2022-09-12
申请人： TURBOALGOR S.R.L.
发明人： ASCANI, Maurizio
IPC分类号： F04B31/00 , F04B35/00 , F04B49/22 , F25B1/02 , F25B1/10 , F25B9/00
摘要： Device for regulating (1) the pressure and/or temperature of the refrigerant fluid entering a compressor (101) of a refrigeration apparatus (100) having a closed circuit (C) within which a flow rate (P) of refrigerant fluid whose pressure and/or temperature has to be regulated, circulates, a cooling device (102) and an evaporator (103), said regulation device (1) comprising at least one reciprocating compressor (2) equipped with at least one cylinder (7), at least one rod (8), at least one first piston (9a) integrally constrained to said rod and able to be translated within said cylinder, said cylinder (7) being equipped with a first chamber (10) comprising a first port (11) for the suction inflow of a first flow rate of said refrigerant fluid coming from said evaporator and a second port (12) for the outflow of said first flow rate of compressed refrigerant fluid contained in said first chamber (10) and intended to reach said compressor (101), said cylinder (7) further comprising a second chamber (20), which is fluidically separated from said first chamber by said first piston (9a) and equipped with at least one third port (21) for the inflow of a second flow rate (X2) of said refrigerant fluid to displace said piston and compress said refrigerant fluid contained in said first chamber (10), said regulation device (1) further comprising control means (50) for controlling the actuation of said at least one rod (8), which are adapted to divert said at least one second flow rate of said refrigerant fluid for controlling the displacement of said at least one first piston (9a) and compressing the refrigerant fluid of said first flow rate, which is contained in said first chamber, and to re-enter said second flow rate of refrigerant fluid into said closed circuit during the displacement of said at least one first piston (9a) during the step of suctioning said first flow rate of refrigerant fluid, characterised in that said control means (50) comprise a valve (51) equipped with an inlet line (51a) and an outlet line (51b) for said second flow rate, and at least one first passage (52a) through said valve, said valve being rotatable in such a way as to assume at least one first radial position (Pl) in which the fluidic communication between said inlet line (51a) to said rotary valve (51) and said at least one second chamber (20) is allowed through said at least one first passage (52a), for the inflow of said second flow rate into said second chamber (20) and the compression of said first flow rate contained in said at least one first chamber (10), and at least one second radial position (P2) in which the fluidic communication between said at least one second chamber (20) and said outlet line (5 lb) of said rotary valve (51), for the suction of refrigerant fluid within said at least one first chamber (10), is allowed through said at least one passage (52a).

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