Patent ID: 7841208
Filing Date: 2010-11-30
Classification: F25B

Abstract:
1. A compression refrigeration system having a compressor, condenser and an evaporator having multiple circuits and airflow means delivering airflow at varying rates to said multiple circuits, said system comprising: (a) an inlet housing communicating with said condenser for receiving high pressure liquid directly from the condenser; (b) each of said multiple evaporator circuits having an inlet and an outlet; and (c) a spray nozzle located at the inlet to selected of said multiple evaporator circuits, said nozzles each having an inlet receiving high pressure refrigerant from said inlet housing and atomizing and expanding the refrigerant and discharging the atomized and expanded saturated liquid at the nozzle outlet into said associated evaporator circuit, said nozzles each being sized to deliver refrigerant in accordance with the conditions at the outlet of the associated evaporator circuit measured by a sensor to deliver a greater volume of refrigerant to those evaporator circuits experiencing higher airflow and a lesser volume of refrigerant to those evaporator circuits experiencing lower airflow wherein expansion of the refrigerant delivered to the evaporator circuits occurs exclusively across said nozzles eliminating any requirement for any other type of expansion device in the system.