Patent 7967060 was granted and assigned to PARKER-HANNIFIN CORPORATION on June, 2011 by the United States Patent and Trademark Office.
An evaporating heat exchanger (12) comprises a multitude of parallel channels (40) extending between vertical header pipes (30,32) and forming flow passages (44) from the inlet chamber (34) and to the outlet chamber (36). A venturi device (50) is positioned within the inlet chamber (34) to ensure even mass distribution of refrigerant to the flow passages (44).