Patent ID: 7617696
Filing Date: 2009-11-17
Classification: F25B,G06F,H05K

Abstract:
1. A compact refrigeration system comprising: a closed vapor compression circuit having operably disposed therein, in serial order, a compressor, a first heat exchanger, an expansion device and a second heat exchanger; said first heat exchanger removing thermal energy from a working fluid circulating through said vapor compression circuit and said second heat exchanger adding thermal energy to the working fluid circulating through said vapor compression circuit, said first heat exchanger having an airflow inlet; said first and second heat exchangers being disposed within a common structure, said structure defining at least one insulating airflow passageway separating said first heat exchanger from said second heat exchanger; said insulating airflow passageway having an inlet positioned to bring ambient air from outside the structure into the insulating airflow passageway and an outlet positioned to discharge insulating airflow from the structure, said insulating airflow passageway extending along a length of the second heat exchanger, said outlet not in flow communication through said second heat exchanger; and an air moving device generating an insulating airflow through said at least one airflow passageway wherein said airflow defines a layer of insulating moving air that enters and exits said insulating airflow passageway without passing through either of said first and second heat exchangers whereby said layer of moving air provides an insulating layer between said first heat exchanger and said second heat exchanger.