Patent Number: 6,253,562

Title: Refrigerant subcooler for vapor compression refrigeration system

Abstract: A subcooling unit within a vapor compression refrigerant system contains a controller for controlling the rate of flow of refrigerant into the chamber of the subcooling unit. The controller receives a sensed temperature of the fluid entering a condensing unit within the chamber of the subcooling unit and computes a condensing pressure setpoint for the refrigerant flowing into the chamber of the subcooling unit. The controller is operative to compare the pressure in the subcooling chamber with the condensing pressure setpoint so as to determine whether to possibly increase or decrease the rate of flow of the refrigerant into the chamber of the subcooling unit.

Inventors: Bujak, Jr.; Walter E. (Suffield, CT)

Assignee: Carrier Corporation

International Classification: F25B 40/00 (20060101); F25B 40/02 (20060101); F25B 5/04 (20060101); F25B 5/00 (20060101); F25B 49/02 (20060101); F25B 041/04 ()

Expiration Date: 07/03/2018