High Side Pressure Regulation For Transcritical Vapor Compression System
First Claim
Patent Images
1. A refrigeration system (60;
-
80;
100;
120;
140;
160;
180) comprising;
a compressor (22) for driving a refrigerant along a flow path (62;
82;
102;
122;
142;
162;
182) in at least a first mode of system operation;
a first heat exchanger (24) along the flow path downstream of the compressor in the first mode;
a second heat exchanger (28) along the flow path upstream of the compressor in the first mode; and
a pressure regulator (68;
72;
88;
92;
108, 110;
124, 126;
148, 152;
164;
188;
190) in the flow path downstream of the first heat exchanger (24) and upstream of the second heat exchanger (28) in the first mode.
1 Assignment
0 Petitions
Accused Products
Abstract
An expensive expansion device may be eliminated in favor of a less expensive pressure regulator in a CO2 vapor compression system such as is used in a bottle cooler or small-capacity air conditioner, refrigerator, or other system.
-
Citations
11 Claims
-
1. A refrigeration system (60;
-
80;
100;
120;
140;
160;
180) comprising;a compressor (22) for driving a refrigerant along a flow path (62;
82;
102;
122;
142;
162;
182) in at least a first mode of system operation;a first heat exchanger (24) along the flow path downstream of the compressor in the first mode; a second heat exchanger (28) along the flow path upstream of the compressor in the first mode; and a pressure regulator (68;
72;
88;
92;
108, 110;
124, 126;
148, 152;
164;
188;
190) in the flow path downstream of the first heat exchanger (24) and upstream of the second heat exchanger (28) in the first mode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
80;
-
11. A refrigeration system comprising:
-
a compressor driving a CO2-based refrigerant along a flow path in at least a first mode of system operation; a first heat exchanger along the flow path downstream of the compressor a second heat exchanger along the flow path upstream of the compressor; and means in the flow path downstream of the first heat exchanger and upstream of the second heat exchanger for expanding the refrigerant in the absence of an electronic expansion device.
-
Specification