Refrigeration – Disparate apparatus utilized as heat source or absorber – With vapor compression system
Patent
1995-07-13
1997-02-04
Tapoical, William E.
Refrigeration
Disparate apparatus utilized as heat source or absorber
With vapor compression system
62239, 623231, B60H 132
Patent
active
055987184
ABSTRACT:
A transport refrigeration system for heating and cooling a conditioned space is provided that includes an improved, combined heat exchanger and economizer for increasing the efficiency of the refrigeration cycle. The system includes a refrigerant compressor driven by an internal combustion engine that includes suction and discharge ports, and an intermediate pressure port; a refrigeration circuit including a heating coil and evaporator assembly thermally connected to the conditioned space, and a mode valve for selectively routing the refrigerant through either the heating coil or the evaporator assembly via a condenser to heat or cool the conditioned space, respectively. The combined heat exchanger and economizer includes a tube connected to the intermediate suction port of the compressor, a shell for conducting refrigerant to the evaporator assembly depending upon the position of the mode valve, and a jacket for circulating engine coolant. During the heating mode of the system, a volume of refrigerant is maintained in the shell of the combined heat exchanger and economizer to act as a thermal buffer for heat transferred between engine coolant circulating through the jacket, and refrigerant flowing through the tube of the device.
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Freund Peter W.
LaBossiere Joseph E.
Sjoholm Lars I.
Tapoical William E.
Westinghouse Electric Corporation
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