Refrigeration – Automatic control – Refrigeration producer
Patent
1990-06-25
1991-10-15
Wayner, William E.
Refrigeration
Automatic control
Refrigeration producer
62205, 62510, 62512, F25B 4100, F25B 4300
Patent
active
050563297
ABSTRACT:
Heat pump systems (principally FIG. 3; also FIGS. 5, 7 or 9) comprising, in circuit of fluid, an injected compressor 113, communicating a compressed gas discharge 137 to a condenser 100, communicating an at least partly liquid output 130 to an expansion valve 101, communicating therefrom 131 to a separator 110, communicating liquid therefrom 134 to a capillary tube 111, and communicating gas therefrom 132 to a control valve 112 that is responsive to ambient temperature; 111 communicating the liquid therefrom 135 to an evaporator 102, communicating gas therefrom 136 to an inlet of the injected compressor 113; the control valve 112 communicating gas therefrom 133 to an injection input of the injected compressor 113; and the expansive valve 101 being adjustable 176,171 responsive to the temperature of the gas communicating 136 from the evaporator 102 to the injected compressor 113. Where the fluid comprises a non-azeotropic refrigerant blend (NARB), the system (FIG. 5; also FIG. 9) comprises also a heat exchanger 114, having a condenser section 139,140 communicating 138 the fluid from the expansion valve 101 to 131 the separator 110, and an evaporator section 141,142 communicating 136 the fluid from the evaporator 102 to 136' the inlet of the injected compressor 113.
REFERENCES:
patent: 4517811 (1985-05-01), Atsumi et al.
patent: 4624114 (1986-11-01), Sakuma et al.
patent: 4745777 (1988-05-01), Murishita et al.
patent: 4910972 (1990-03-01), Jaster
Battelle (Memorial Institute)
Dunson Philip M.
Wayner William E.
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