Flat Tube Single Serpentine Co2 Heat Exchanger

Abstract

A refrigeration system includes 0 compressor for driving 0 refrigerant along flow path in at least a first mode of system; a first heat exchanger along the flow path downstream of the compressor in the first mode; a second heat exchanger along the flow path upstream the compressor in the first mode; and a pressure regulator or expansion device in the flow path downstream of the first heat exchanger and upstream of the second heat exchanger in the first mode, wherein at least one of the first heat exchanger and the second heat exchanger comprises a flat tube heat exchanger.

Dependencies are inferred from the claim text.